Possible fix for avatars showing stale image data

By giving React a different key for different users' avatars, this hopefully ensures that a new <img> element will be created when the avatar component switches to a different user.

.eslintrc.cjs

@@ -8,7 +8,7 @@ Please see LICENSE in the repository root for full details.
 `;
 
 module.exports = {
-  plugins: ["matrix-org", "rxjs"],
+  plugins: ["matrix-org", "rxjs", "jsdoc"],
   extends: [
     "plugin:matrix-org/react",
     "plugin:matrix-org/a11y",
@@ -26,10 +26,15 @@ module.exports = {
     node: true,
   },
   rules: {
+    "jsdoc/no-types": "error",
+    "jsdoc/empty-tags": "error",
+    "jsdoc/check-property-names": "error",
+    "jsdoc/check-values": "error",
+    "jsdoc/check-param-names": "warn",
+    // "jsdoc/require-param": "warn",
+    "jsdoc/require-param-description": "warn",
     "matrix-org/require-copyright-header": ["error", COPYRIGHT_HEADER],
     "jsx-a11y/media-has-caption": "off",
-    // We should use the js-sdk logger, never console directly.
-    "no-console": ["error"],
     "react/display-name": "error",
     // Encourage proper usage of Promises:
     "@typescript-eslint/no-floating-promises": "error",
@@ -44,8 +49,64 @@ module.exports = {
     ],
     // To encourage good usage of RxJS:
     "rxjs/no-exposed-subjects": "error",
-    "rxjs/finnish": "error",
+    "rxjs/finnish": ["error", { names: { "^this$": false } }],
+    "no-restricted-imports": [
+      "error",
+      {
+        paths: ["matrix-widget-api", "matrix-js-sdk"].flatMap((lib) =>
+          ["src", "src/", "src/index", "lib", "lib/", "lib/index"]
+            .map((path) => `${lib}/${path}`)
+            .map((name) => ({ name, message: `Please use ${lib} instead` })),
+        ),
+        patterns: [
+          ...["matrix-widget-api"].map((lib) => ({
+            group: ["src", "src/", "src/**", "lib", "lib/", "lib/**"].map(
+              (path) => `${lib}/${path}`,
+            ),
+            message: `Please use ${lib} instead`,
+          })),
+          // XXX: We use /lib in lots of places, so allow for now.
+          ...["matrix-js-sdk"].map((lib) => ({
+            group: ["src", "src/", "src/**"].map((path) => `${lib}/${path}`),
+            message: `Please use ${lib} instead`,
+          })),
+        ],
+      },
+    ],
   },
+  overrides: [
+    {
+      files: ["src/*/**"],
+      rules: {
+        // In application code we should use the js-sdk logger, never console directly.
+        "no-console": ["error"],
+      },
+    },
+    {
+      files: [
+        "**/*.test.ts",
+        "**/*.test.tsx",
+        "**/test.ts",
+        "**/test.tsx",
+        "**/test-**",
+      ],
+      rules: {
+        "jsdoc/no-types": "off",
+        "jsdoc/empty-tags": "off",
+        "jsdoc/check-property-names": "off",
+        "jsdoc/check-values": "off",
+        "jsdoc/check-param-names": "off",
+        "jsdoc/require-param-description": "off",
+      },
+    },
+    {
+      files: ["playwright/**"],
+      rules: {
+        // Playwright as a `use` function that has nothing to do with React hooks.
+        "react-hooks/rules-of-hooks": "off",
+      },
+    },
+  ],
   settings: {
     react: {
       version: "detect",

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,39 @@
+<!-- Thanks for submitting a PR! Please ensure the following requirements are met in order for us to review your PR -->
+
+## Content
+
+<!-- Describe shortly what has been changed -->
+
+## Motivation and context
+
+<!-- Provide link to the corresponding issue if applicable or explain the context -->
+
+## Screenshots / GIFs
+
+<!--
+
+You can use a table like this to show screenshots comparison.
+Uncomment this markdown table below and edit the last line `|||`:
+|copy screenshot of before here|copy screenshot of after here|
+
+|Before|After|
+|-|-|
+|||
+ -->
+
+## Tests
+
+<!-- Explain how you tested your development -->
+
+- Step 1
+- Step 2
+- Step ...
+-
+
+## Checklist
+
+- [ ] I have read through [CONTRIBUTING.md](https://github.com/element-hq/element-call/blob/livekit/CONTRIBUTING.md).
+- [ ] Pull request includes screenshots or videos if containing UI changes
+- [ ] Tests written for new code (and old code if feasible).
+- [ ] Linter and other CI checks pass.
+- [ ] I have licensed the changes to Element by completing the [Contributor License Agreement (CLA)](https://cla-assistant.io/element-hq/element-call)

.github/workflows/blocked.yaml

@@ -1,7 +1,16 @@
 name: Prevent blocked
 on:
+  # zizmor: ignore[dangerous-triggers]
+  # Reason: This workflow does not checkout code or use secrets.
+  # It only reads labels to set a failure status on the PR.
   pull_request_target:
-    types: [opened, labeled, unlabeled]
+    types: [opened, labeled, unlabeled, synchronize]
+
+permissions:
+  pull-requests: read
+  # Required to fail the check on the PR
+  statuses: write
+
 jobs:
   prevent-blocked:
     name: Prevent blocked
@@ -10,7 +19,7 @@ jobs:
       pull-requests: read
     steps:
       - name: Add notice
-        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7
         if: contains(github.event.pull_request.labels.*.name, 'X-Blocked')
         with:
           script: |

.github/workflows/build-and-publish-docker.yaml

@@ -20,10 +20,13 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       contents: write # required to upload release asset
-      packages: write
+      packages: write # needed for publishing packages to GHCR
+      id-token: write # needed for login into tailscale with GitHub OIDC Token
     steps:
       - name: Check it out
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        with:
+          persist-credentials: false
 
       - name: 📥 Download artifact
         uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
@@ -34,26 +37,64 @@ jobs:
           path: dist
 
       - name: Log in to container registry
-        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
+        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3.7.0
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Connect to Tailscale
+        uses: tailscale/github-action@306e68a486fd2350f2bfc3b19fcd143891a4a2d8 # v4
+        if: github.event_name != 'pull_request'
+        with:
+          oauth-client-id: ${{ secrets.TS_OAUTH_CLIENT_ID }}
+          audience: ${{ secrets.TS_AUDIENCE }}
+          tags: tag:github-actions
+
+      - name: Compute vault jwt role name
+        id: vault-jwt-role
+        if: github.event_name != 'pull_request'
+        run: |
+          echo "role_name=github_service_management_$( echo "${{ github.repository }}" | sed -r 's|[/-]|_|g')" | tee -a "$GITHUB_OUTPUT"
+
+      - name: Get team registry token
+        id: import-secrets
+        uses: hashicorp/vault-action@4c06c5ccf5c0761b6029f56cfb1dcf5565918a3b # v3
+        if: github.event_name != 'pull_request'
+        with:
+          url: https://vault.infra.ci.i.element.dev
+          role: ${{ steps.vault-jwt-role.outputs.role_name }}
+          path: service-management/github-actions
+          jwtGithubAudience: https://vault.infra.ci.i.element.dev
+          method: jwt
+          secrets: |
+            services/voip-repositories/secret/data/oci.element.io username | OCI_USERNAME ;
+            services/voip-repositories/secret/data/oci.element.io password | OCI_PASSWORD ;
+
+      - name: Login to oci.element.io Registry
+        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3
+        if: github.event_name != 'pull_request'
+        with:
+          registry: oci-push.vpn.infra.element.io
+          username: ${{ steps.import-secrets.outputs.OCI_USERNAME }}
+          password: ${{ steps.import-secrets.outputs.OCI_PASSWORD }}
+
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
+        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5.10.0
         with:
-          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-          tags: ${{ inputs.docker_tags}}
+          images: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+            oci-push.vpn.infra.element.io/element-call
+          tags: ${{ inputs.docker_tags }}
           labels: |
             org.opencontainers.image.licenses=AGPL-3.0-only OR LicenseRef-Element-Commercial
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3.10.0
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3.12.0
 
       - name: Build and push Docker image
-        uses: docker/build-push-action@14487ce63c7a62a4a324b0bfb37086795e31c6c1 # v6.16.0
+        uses: docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6.19.2
         with:
           context: .
           platforms: linux/amd64,linux/arm64

.github/workflows/build-element-call.yaml

@@ -7,8 +7,13 @@ on:
         type: string
       package:
         type: string # This would ideally be a `choice` type, but that isn't supported yet
-        description: The package type to be built. Must be one of 'full' or 'embedded'
+        description: The package type to be built. Must be one of 'full', 'embedded', or 'sdk'
         required: true
+      build_mode:
+        type: string # This would ideally be a `choice` type, but that isn't supported yet
+        description: The build mode for vite. Must be either 'development' or 'production'
+        required: false
+        default: production
     secrets:
       SENTRY_ORG:
         required: true
@@ -27,7 +32,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        with:
+          persist-credentials: false
       - name: Enable Corepack
         run: corepack enable
       - name: Yarn cache
@@ -37,20 +44,8 @@ jobs:
           node-version-file: ".node-version"
       - name: Install dependencies
         run: "yarn install --immutable"
-      - name: Build full version
-        if: ${{ inputs.package == 'full' }}
-        run: "yarn run build:full"
-        env:
-          SENTRY_ORG: ${{ secrets.SENTRY_ORG }}
-          SENTRY_PROJECT: ${{ secrets.SENTRY_PROJECT }}
-          SENTRY_URL: ${{ secrets.SENTRY_URL }}
-          SENTRY_AUTH_TOKEN: ${{ secrets.SENTRY_AUTH_TOKEN }}
-          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
-          VITE_APP_VERSION: ${{ inputs.vite_app_version }}
-          NODE_OPTIONS: "--max-old-space-size=4096"
-      - name: Build embedded
-        if: ${{ inputs.package == 'embedded' }}
-        run: "yarn run build:embedded"
+      - name: Build Element Call
+        run: yarn run build:"$PACKAGE":"$BUILD_MODE"
         env:
           SENTRY_ORG: ${{ secrets.SENTRY_ORG }}
           SENTRY_PROJECT: ${{ secrets.SENTRY_PROJECT }}
@@ -59,6 +54,8 @@ jobs:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
           VITE_APP_VERSION: ${{ inputs.vite_app_version }}
           NODE_OPTIONS: "--max-old-space-size=4096"
+          PACKAGE: ${{ inputs.package }}
+          BUILD_MODE: ${{ inputs.build_mode }}
       - name: Upload Artifact
         uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:

.github/workflows/build.yaml

@@ -14,6 +14,7 @@ jobs:
     with:
       package: full
       vite_app_version: ${{ github.event.release.tag_name || github.sha }}
+      build_mode: ${{ github.event_name == 'pull_request' && contains(github.event.pull_request.labels.*.name, 'development build') && 'development' || 'production' }}
     secrets:
       SENTRY_ORG: ${{ secrets.SENTRY_ORG }}
       SENTRY_PROJECT: ${{ secrets.SENTRY_PROJECT }}
@@ -48,7 +49,9 @@ jobs:
     permissions:
       contents: write
       packages: write
+      id-token: write
     uses: ./.github/workflows/build-and-publish-docker.yaml
+    secrets: inherit
     with:
       artifact_run_id: ${{ github.run_id }}
       docker_tags: |
@@ -61,6 +64,21 @@ jobs:
     with:
       package: embedded
       vite_app_version: ${{ github.event.release.tag_name || github.sha }}
+      build_mode: ${{ github.event_name == 'pull_request' && contains(github.event.pull_request.labels.*.name, 'development build') && 'development' || 'production' }}
+    secrets:
+      SENTRY_ORG: ${{ secrets.SENTRY_ORG }}
+      SENTRY_PROJECT: ${{ secrets.SENTRY_PROJECT }}
+      SENTRY_URL: ${{ secrets.SENTRY_URL }}
+      SENTRY_AUTH_TOKEN: ${{ secrets.SENTRY_AUTH_TOKEN }}
+      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+
+  build_sdk_element_call:
+    # Use the embedded package vite build
+    uses: ./.github/workflows/build-element-call.yaml
+    with:
+      package: sdk
+      vite_app_version: ${{ github.event.release.tag_name || github.sha }}
+      build_mode: ${{ github.event_name == 'pull_request' && contains(github.event.pull_request.labels.*.name, 'development build') && 'development' || 'production' }}
     secrets:
       SENTRY_ORG: ${{ secrets.SENTRY_ORG }}
       SENTRY_PROJECT: ${{ secrets.SENTRY_PROJECT }}

.github/workflows/changelog-label.yml

@@ -1,14 +1,22 @@
 name: PR changelog label
 
 on:
+  # zizmor: ignore[dangerous-triggers]
+  # This is safe because we do not use actions/checkout or execute untrusted code.
+  # Using pull_request_target is necessary to allow status writes for PRs from forks.
   pull_request_target:
     types: [labeled, unlabeled, opened]
+
+permissions:
+  pull-requests: read
+  statuses: write
+
 jobs:
   pr-changelog-label:
     runs-on: ubuntu-latest
     steps:
       - uses: yogevbd/enforce-label-action@a3c219da6b8fa73f6ba62b68ff09c469b3a1c024 # 2.2.2
         with:
-          REQUIRED_LABELS_ANY: "PR-Bug-Fix,PR-Documentation,PR-Task,PR-Feature,PR-Improvement,PR-Developer-Experience,dependencies"
+          REQUIRED_LABELS_ANY: "PR-Bug-Fix,PR-Documentation,PR-Task,PR-Feature,PR-Improvement,PR-Developer-Experience,dependencies,PR-Breaking-Change"
           REQUIRED_LABELS_ANY_DESCRIPTION: "Select at least one 'PR-' label"
           BANNED_LABELS: "banned"

.github/workflows/deploy-to-netlify.yaml

@@ -14,6 +14,10 @@ on:
       deployment_ref:
         required: true
         type: string
+      package:
+        required: true
+        type: string
+        description: Which package to deploy - 'full', 'embedded', or 'sdk'
       artifact_run_id:
         required: false
         type: string
@@ -50,7 +54,7 @@ jobs:
         with:
           github-token: ${{ secrets.ELEMENT_BOT_TOKEN }}
           run-id: ${{ inputs.artifact_run_id }}
-          name: build-output-full
+          name: build-output-${{ inputs.package }}
           path: webapp
 
       - name: Add redirects file
@@ -58,15 +62,23 @@ jobs:
         run: curl -s https://raw.githubusercontent.com/element-hq/element-call/main/config/netlify_redirects > webapp/_redirects
 
       - name: Add config file
-        run: curl -s "https://raw.githubusercontent.com/${{ inputs.pr_head_full_name }}/${{ inputs.pr_head_ref }}/config/config_netlify_preview.json" > webapp/config.json
-
+        run: |
+          if [ "${INPUTS_PACKAGE}" = "full" ]; then
+            curl -s "https://raw.githubusercontent.com/${INPUTS_PR_HEAD_FULL_NAME}/${INPUTS_PR_HEAD_REF}/config/config_netlify_preview.json" > webapp/config.json
+          else
+            curl -s "https://raw.githubusercontent.com/${INPUTS_PR_HEAD_FULL_NAME}/${INPUTS_PR_HEAD_REF}/config/config_netlify_preview_sdk.json" > webapp/config.json
+          fi
+        env:
+          INPUTS_PACKAGE: ${{ inputs.package }}
+          INPUTS_PR_HEAD_FULL_NAME: ${{ inputs.pr_head_full_name }}
+          INPUTS_PR_HEAD_REF: ${{ inputs.pr_head_ref }}
       - name: ☁️ Deploy to Netlify
         id: netlify
         uses: nwtgck/actions-netlify@4cbaf4c08f1a7bfa537d6113472ef4424e4eb654 # v3.0
         with:
           publish-dir: webapp
           deploy-message: "Deploy from GitHub Actions"
-          alias: pr${{ inputs.pr_number }}
+          alias: ${{ inputs.package == 'sdk' && format('pr{0}-sdk', inputs.pr_number) || format('pr{0}', inputs.pr_number) }}
         env:
           NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
           NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}

.github/workflows/lint.yaml

@@ -7,7 +7,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        with:
+          persist-credentials: false
       - name: Enable Corepack
         run: corepack enable
       - name: Yarn cache

.github/workflows/pr-deploy.yaml

@@ -1,5 +1,7 @@
 name: Deploy previews for PRs
 on:
+  # zizmor: ignore[dangerous-triggers]
+  # Reason: This is now restricted to internal PRs only using the 'if' condition below.
   workflow_run:
     workflows: ["Build"]
     types:
@@ -7,7 +9,14 @@ on:
 
 jobs:
   prdetails:
-    if: ${{ github.event.workflow_run.conclusion == 'success' && github.event.workflow_run.event == 'pull_request' }}
+    # Logic:
+    # 1. Build must be successful
+    # 2. Event must be a pull_request
+    # 3. Head repository must be the SAME as the base repository (No Forks!)
+    if: >
+      github.event.workflow_run.conclusion == 'success' && 
+      github.event.workflow_run.event == 'pull_request' &&
+      github.event.workflow_run.head_repository.full_name == github.repository
     runs-on: ubuntu-latest
     outputs:
       pr_number: ${{ steps.prdetails.outputs.pr_id }}
@@ -20,7 +29,7 @@ jobs:
           owner: ${{ github.event.workflow_run.head_repository.owner.login }}
           branch: ${{ github.event.workflow_run.head_branch }}
 
-  netlify:
+  netlify-full:
     needs: prdetails
     permissions:
       deployments: write
@@ -31,6 +40,24 @@ jobs:
       pr_head_full_name: ${{ github.event.workflow_run.head_repository.full_name }}
       pr_head_ref: ${{ needs.prdetails.outputs.pr_data_json && fromJSON(needs.prdetails.outputs.pr_data_json).head.ref }}
       deployment_ref: ${{ needs.prdetails.outputs.pr_data_json && fromJSON(needs.prdetails.outputs.pr_data_json).head.sha || github.ref || github.head_ref }}
+      package: full
+    secrets:
+      ELEMENT_BOT_TOKEN: ${{ secrets.ELEMENT_BOT_TOKEN }}
+      NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
+      NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
+
+  netlify-sdk:
+    needs: prdetails
+    permissions:
+      deployments: write
+    uses: ./.github/workflows/deploy-to-netlify.yaml
+    with:
+      artifact_run_id: ${{ github.event.workflow_run.id || github.run_id }}
+      pr_number: ${{ needs.prdetails.outputs.pr_number }}
+      pr_head_full_name: ${{ github.event.workflow_run.head_repository.full_name }}
+      pr_head_ref: ${{ needs.prdetails.outputs.pr_data_json && fromJSON(needs.prdetails.outputs.pr_data_json).head.ref }}
+      deployment_ref: ${{ needs.prdetails.outputs.pr_data_json && fromJSON(needs.prdetails.outputs.pr_data_json).head.sha || github.ref || github.head_ref }}
+      package: sdk
     secrets:
       ELEMENT_BOT_TOKEN: ${{ secrets.ELEMENT_BOT_TOKEN }}
       NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
@@ -42,7 +69,9 @@ jobs:
     permissions:
       contents: write
       packages: write
+      id-token: write
     uses: ./.github/workflows/build-and-publish-docker.yaml
+    secrets: inherit
     with:
       artifact_run_id: ${{ github.event.workflow_run.id || github.run_id }}
       docker_tags: |

.github/workflows/publish-embedded-packages.yaml

@@ -22,8 +22,18 @@ jobs:
       TAG: ${{ steps.tag.outputs.TAG }}
     steps:
       - name: Calculate VERSION
-        # We should only use the hard coded test value for a dry run
-        run: echo "VERSION=${{ github.event_name == 'release' && github.event.release.tag_name || 'v0.0.0-pre.0' }}" >> "$GITHUB_ENV"
+        # Safely store dynamic values in environment variables
+        # to prevent shell injection (template-injection)
+        run: |
+          # The logic is executed within the shell using the env variables
+          if [ "$EVENT_NAME" = "release" ]; then
+            echo "VERSION=$RELEASE_TAG" >> "$GITHUB_ENV"
+          else
+            echo "VERSION=v0.0.0-pre.0" >> "$GITHUB_ENV"
+          fi
+        env:
+          RELEASE_TAG: ${{ github.event.release.tag_name }}
+          EVENT_NAME: ${{ github.event_name }}
       - id: dry_run
         name: Set DRY_RUN
         # We perform a dry run for all events except releases.
@@ -44,6 +54,8 @@ jobs:
         run: |
           if [[ "${VERSION}" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
             echo "TAG=latest" >> "$GITHUB_OUTPUT"
+          elif [[ "${VERSION}" =~ ^v[0-9]+\.[0-9]+\.[0-9]+\-rc\.[0-9]+$ ]]; then
+            echo "TAG=rc" >> "$GITHUB_OUTPUT"
           else
             echo "TAG=other" >> "$GITHUB_OUTPUT"
           fi
@@ -69,7 +81,9 @@ jobs:
       contents: write # required to upload release asset
     steps:
       - name: Determine filename
-        run: echo "FILENAME_PREFIX=element-call-embedded-${{ needs.versioning.outputs.UNPREFIXED_VERSION }}" >> "$GITHUB_ENV"
+        run: echo "FILENAME_PREFIX=element-call-embedded-${NEEDS_VERSIONING_OUTPUTS_UNPREFIXED_VERSION}" >> "$GITHUB_ENV"
+        env:
+          NEEDS_VERSIONING_OUTPUTS_UNPREFIXED_VERSION: ${{ needs.versioning.outputs.UNPREFIXED_VERSION }}
       - name: 📥 Download built element-call artifact
         uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
         with:
@@ -78,12 +92,12 @@ jobs:
           name: build-output-embedded
           path: ${{ env.FILENAME_PREFIX}}
       - name: Create Tarball
-        run: tar --numeric-owner -cvzf ${{ env.FILENAME_PREFIX }}.tar.gz ${{ env.FILENAME_PREFIX }}
+        run: tar --numeric-owner -cvzf ${FILENAME_PREFIX}.tar.gz ${FILENAME_PREFIX}
       - name: Create Checksum
-        run: find ${{ env.FILENAME_PREFIX }} -type f -print0 | sort -z | xargs -0 sha256sum | tee ${{ env.FILENAME_PREFIX }}.sha256
+        run: find ${FILENAME_PREFIX} -type f -print0 | sort -z | xargs -0 sha256sum | tee ${FILENAME_PREFIX}.sha256
       - name: Upload
         if: ${{ needs.versioning.outputs.DRY_RUN == 'false' }}
-        uses: softprops/action-gh-release@da05d552573ad5aba039eaac05058a918a7bf631 # v2
+        uses: softprops/action-gh-release@a06a81a03ee405af7f2048a818ed3f03bbf83c7b # v2
         with:
           files: |
             ${{ env.FILENAME_PREFIX }}.tar.gz
@@ -98,10 +112,12 @@ jobs:
       ARTIFACT_VERSION: ${{ steps.artifact_version.outputs.ARTIFACT_VERSION }}
     permissions:
       contents: read
-      id-token: write # required for the provenance flag on npm publish
+      id-token: write # Allow npm to authenticate as a trusted publisher
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        with:
+          persist-credentials: false
 
       - name: 📥 Download built element-call artifact
         uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
@@ -121,15 +137,16 @@ jobs:
       - name: Publish npm
         working-directory: embedded/web
         run: |
-          npm version ${{ needs.versioning.outputs.PREFIXED_VERSION }} --no-git-tag-version
+          npm version ${NEEDS_VERSIONING_OUTPUTS_PREFIXED_VERSION} --no-git-tag-version
           echo "ARTIFACT_VERSION=$(jq '.version' --raw-output package.json)" >> "$GITHUB_ENV"
-          npm publish --provenance --access public --tag ${{ needs.versioning.outputs.TAG }} ${{ needs.versioning.outputs.DRY_RUN == 'true' && '--dry-run' || '' }}
+          npm publish --provenance --access public --tag ${NEEDS_VERSIONING_OUTPUTS_TAG} ${{ needs.versioning.outputs.DRY_RUN == 'true' && '--dry-run' || '' }}
         env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_RELEASE_TOKEN }}
+          NEEDS_VERSIONING_OUTPUTS_PREFIXED_VERSION: ${{ needs.versioning.outputs.PREFIXED_VERSION }}
+          NEEDS_VERSIONING_OUTPUTS_TAG: ${{ needs.versioning.outputs.TAG }}
 
       - id: artifact_version
         name: Output artifact version
-        run: echo "ARTIFACT_VERSION=${{env.ARTIFACT_VERSION}}" >> "$GITHUB_OUTPUT"
+        run: echo "ARTIFACT_VERSION=${ARTIFACT_VERSION}" >> "$GITHUB_OUTPUT"
 
   publish_android:
     needs: [build_element_call, versioning]
@@ -142,7 +159,9 @@ jobs:
       contents: read
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        with:
+          persist-credentials: false
 
       - name: 📥 Download built element-call artifact
         uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
@@ -153,7 +172,7 @@ jobs:
           path: embedded/android/lib/src/main/assets/element-call
 
       - name: ☕️ Setup Java
-        uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 # v4
+        uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9 # v4
         with:
           distribution: "temurin"
           java-version: "17"
@@ -161,14 +180,19 @@ jobs:
       - name: Get artifact version
         # Anything that is not a final release will be tagged as a snapshot
         run: |
-          if [[ "${{ needs.versioning.outputs.TAG }}" == "latest" ]]; then
-            echo "ARTIFACT_VERSION=${{ needs.versioning.outputs.UNPREFIXED_VERSION }}" >> "$GITHUB_ENV"
+          if [[ "${NEEDS_VERSIONING_OUTPUTS_TAG}" == "latest" ]]; then
+            echo "ARTIFACT_VERSION=${NEEDS_VERSIONING_OUTPUTS_UNPREFIXED_VERSION}" >> "$GITHUB_ENV"
+          elif [[ "${NEEDS_VERSIONING_OUTPUTS_TAG}" == "rc" ]]; then
+            echo "ARTIFACT_VERSION=${NEEDS_VERSIONING_OUTPUTS_UNPREFIXED_VERSION}" >> "$GITHUB_ENV"
           else
-            echo "ARTIFACT_VERSION=${{ needs.versioning.outputs.UNPREFIXED_VERSION }}-SNAPSHOT" >> "$GITHUB_ENV"
+            echo "ARTIFACT_VERSION=${NEEDS_VERSIONING_OUTPUTS_UNPREFIXED_VERSION}-SNAPSHOT" >> "$GITHUB_ENV"
           fi
+        env:
+          NEEDS_VERSIONING_OUTPUTS_TAG: ${{ needs.versioning.outputs.TAG }}
+          NEEDS_VERSIONING_OUTPUTS_UNPREFIXED_VERSION: ${{ needs.versioning.outputs.UNPREFIXED_VERSION }}
 
       - name: Set version string
-        run: sed -i "s/0.0.0/${{ env.ARTIFACT_VERSION }}/g" embedded/android/lib/src/main/kotlin/io/element/android/call/embedded/Version.kt
+        run: sed -i "s/0.0.0/${ARTIFACT_VERSION}/g" embedded/android/lib/src/main/kotlin/io/element/android/call/embedded/Version.kt
 
       - name: Publish AAR
         working-directory: embedded/android
@@ -182,7 +206,7 @@ jobs:
 
       - id: artifact_version
         name: Output artifact version
-        run: echo "ARTIFACT_VERSION=${{env.ARTIFACT_VERSION}}" >> "$GITHUB_OUTPUT"
+        run: echo "ARTIFACT_VERSION=${ARTIFACT_VERSION}" >> "$GITHUB_OUTPUT"
 
   publish_ios:
     needs: [build_element_call, versioning]
@@ -195,9 +219,10 @@ jobs:
       contents: read
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
         with:
           path: element-call
+          persist-credentials: false
 
       - name: 📥 Download built element-call artifact
         uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
@@ -208,20 +233,23 @@ jobs:
           path: element-call/embedded/ios/Sources/dist
 
       - name: Checkout element-call-swift
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
         with:
           repository: element-hq/element-call-swift
           path: element-call-swift
           token: ${{ secrets.SWIFT_RELEASE_TOKEN }}
+          persist-credentials: false
 
       - name: Copy files
         run: rsync -a --delete --exclude .git element-call/embedded/ios/ element-call-swift
 
       - name: Get artifact version
-        run: echo "ARTIFACT_VERSION=${{ needs.versioning.outputs.UNPREFIXED_VERSION }}" >> "$GITHUB_ENV"
+        run: echo "ARTIFACT_VERSION=${NEEDS_VERSIONING_OUTPUTS_UNPREFIXED_VERSION}" >> "$GITHUB_ENV"
+        env:
+          NEEDS_VERSIONING_OUTPUTS_UNPREFIXED_VERSION: ${{ needs.versioning.outputs.UNPREFIXED_VERSION }}
 
       - name: Set version string
-        run: sed -i "s/0.0.0/${{ env.ARTIFACT_VERSION }}/g" element-call-swift/Sources/EmbeddedElementCall/EmbeddedElementCall.swift
+        run: sed -i "s/0.0.0/${ARTIFACT_VERSION}/g" element-call-swift/Sources/EmbeddedElementCall/EmbeddedElementCall.swift
 
       - name: Test build
         working-directory: element-call-swift
@@ -233,17 +261,22 @@ jobs:
           git config --global user.email "ci@element.io"
           git config --global user.name "Element CI"
           git add -A
-          git commit -am "Release ${{ needs.versioning.outputs.PREFIXED_VERSION }}"
-          git tag -a ${{ env.ARTIFACT_VERSION }} -m "${{ github.event.release.html_url }}"
+          git commit -am "Release ${NEEDS_VERSIONING_OUTPUTS_PREFIXED_VERSION}"
+          git tag -a ${ARTIFACT_VERSION} -m "${GITHUB_EVENT_RELEASE_HTML_URL}"
+        env:
+          NEEDS_VERSIONING_OUTPUTS_PREFIXED_VERSION: ${{ needs.versioning.outputs.PREFIXED_VERSION }}
+          GITHUB_EVENT_RELEASE_HTML_URL: ${{ github.event.release.html_url }}
 
       - name: Push
         working-directory: element-call-swift
         run: |
-          git push --tags ${{ needs.versioning.outputs.DRY_RUN == 'true' && '--dry-run' || '' }}
+          git push "https://x-access-token:${SWIFT_RELEASE_TOKEN}@github.com/element-hq/element-call-swift.git" --tags ${{ needs.versioning.outputs.DRY_RUN == 'true' && '--dry-run' || '' }}
+        env:
+          SWIFT_RELEASE_TOKEN: ${{ secrets.SWIFT_RELEASE_TOKEN }}
 
       - id: artifact_version
         name: Output artifact version
-        run: echo "ARTIFACT_VERSION=${{env.ARTIFACT_VERSION}}" >> "$GITHUB_OUTPUT"
+        run: echo "ARTIFACT_VERSION=${ARTIFACT_VERSION}" >> "$GITHUB_OUTPUT"
 
   release_notes:
     needs: [versioning, publish_npm, publish_android, publish_ios]
@@ -255,12 +288,16 @@ jobs:
     steps:
       - name: Log versions
         run: |
-          echo "NPM: ${{ needs.publish_npm.outputs.ARTIFACT_VERSION }}"
-          echo "Android: ${{ needs.publish_android.outputs.ARTIFACT_VERSION }}"
-          echo "iOS: ${{ needs.publish_ios.outputs.ARTIFACT_VERSION }}"
+          echo "NPM: ${NEEDS_PUBLISH_NPM_OUTPUTS_ARTIFACT_VERSION}"
+          echo "Android: ${NEEDS_PUBLISH_ANDROID_OUTPUTS_ARTIFACT_VERSION}"
+          echo "iOS: ${NEEDS_PUBLISH_IOS_OUTPUTS_ARTIFACT_VERSION}"
+        env:
+          NEEDS_PUBLISH_NPM_OUTPUTS_ARTIFACT_VERSION: ${{ needs.publish_npm.outputs.ARTIFACT_VERSION }}
+          NEEDS_PUBLISH_ANDROID_OUTPUTS_ARTIFACT_VERSION: ${{ needs.publish_android.outputs.ARTIFACT_VERSION }}
+          NEEDS_PUBLISH_IOS_OUTPUTS_ARTIFACT_VERSION: ${{ needs.publish_ios.outputs.ARTIFACT_VERSION }}
       - name: Add release notes
         if: ${{ needs.versioning.outputs.DRY_RUN == 'false' }}
-        uses: softprops/action-gh-release@da05d552573ad5aba039eaac05058a918a7bf631 # v2
+        uses: softprops/action-gh-release@a06a81a03ee405af7f2048a818ed3f03bbf83c7b # v2
         with:
           append_body: true
           body: |

.github/workflows/publish.yaml

@@ -38,11 +38,11 @@ jobs:
           name: build-output-full
           path: ${{ env.FILENAME_PREFIX }}
       - name: Create Tarball
-        run: tar --numeric-owner --transform "s/dist/${{ env.FILENAME_PREFIX }}/" -cvzf ${{ env.FILENAME_PREFIX }}.tar.gz ${{ env.FILENAME_PREFIX }}
+        run: tar --numeric-owner --transform "s/dist/${FILENAME_PREFIX}/" -cvzf ${FILENAME_PREFIX}.tar.gz ${FILENAME_PREFIX}
       - name: Create Checksum
-        run: find ${{ env.FILENAME_PREFIX }} -type f -print0 | sort -z | xargs -0 sha256sum | tee ${{ env.FILENAME_PREFIX }}.sha256
+        run: find ${FILENAME_PREFIX} -type f -print0 | sort -z | xargs -0 sha256sum | tee ${FILENAME_PREFIX}.sha256
       - name: Upload
-        uses: softprops/action-gh-release@da05d552573ad5aba039eaac05058a918a7bf631 # v2
+        uses: softprops/action-gh-release@a06a81a03ee405af7f2048a818ed3f03bbf83c7b # v2
         with:
           files: |
             ${{ env.FILENAME_PREFIX }}.tar.gz
@@ -55,12 +55,15 @@ jobs:
     permissions:
       contents: write
       packages: write
+      id-token: write
     uses: ./.github/workflows/build-and-publish-docker.yaml
+    secrets: inherit
     with:
       artifact_run_id: ${{ github.event.workflow_run.id || github.run_id }}
       docker_tags: |
         type=sha,format=short,event=branch
         type=raw,value=${{ github.event.release.tag_name }}
+        type=raw,value=latest
       # Like before, using ${{ env.VERSION }} above doesn't work
   add_docker_release_note:
     needs: publish_docker
@@ -68,7 +71,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Add release note
-        uses: softprops/action-gh-release@da05d552573ad5aba039eaac05058a918a7bf631 # v2
+        uses: softprops/action-gh-release@a06a81a03ee405af7f2048a818ed3f03bbf83c7b # v2
         with:
           append_body: true
           body: |

.github/workflows/test.yaml

@@ -9,7 +9,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        with:
+          persist-credentials: false
       - name: Enable Corepack
         run: corepack enable
       - name: Yarn cache
@@ -22,7 +24,7 @@ jobs:
       - name: Vitest
         run: "yarn run test:coverage"
       - name: Upload to codecov
-        uses: codecov/codecov-action@18283e04ce6e62d37312384ff67231eb8fd56d24 # v5
+        uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de # v5
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
         with:
@@ -30,10 +32,12 @@ jobs:
           fail_ci_if_error: true
   playwright:
     name: Run end-to-end tests
-    timeout-minutes: 10
+    timeout-minutes: 60
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        with:
+          persist-credentials: false
       - name: Enable Corepack
         run: corepack enable
       - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
@@ -46,11 +50,12 @@ jobs:
         run: yarn playwright install --with-deps
       - name: Run backend components
         run: |
-          docker compose -f playwright-backend-docker-compose.yml up -d
+          docker compose -f playwright-backend-docker-compose.yml -f playwright-backend-docker-compose.override.yml pull
+          docker compose -f playwright-backend-docker-compose.yml -f playwright-backend-docker-compose.override.yml up -d
           docker ps
-      - name: Copy config file
-        run: cp config/config.devenv.json public/config.json
       - name: Run Playwright tests
+        env:
+          USE_DOCKER: 1
         run: yarn playwright test
       - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         if: ${{ !cancelled() }}

.github/workflows/translations-download.yaml

@@ -13,7 +13,9 @@ jobs:
 
     steps:
       - name: Checkout the code
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        with:
+          persist-credentials: false
 
       - name: Enable Corepack
         run: corepack enable
@@ -42,7 +44,7 @@ jobs:
 
       - name: Create Pull Request
         id: cpr
-        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e # v7.0.8
+        uses: peter-evans/create-pull-request@22a9089034f40e5a961c8808d113e2c98fb63676 # v7.0.11
         with:
           token: ${{ secrets.ELEMENT_BOT_TOKEN }}
           branch: actions/localazy-download

.github/workflows/translations-upload.yaml

@@ -14,7 +14,9 @@ jobs:
 
     steps:
       - name: Checkout the code
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        with:
+          persist-credentials: false
 
       - name: Upload
         uses: localazy/upload@27e6b5c0fddf4551596b42226b1c24124335d24a # v1

.github/workflows/zizmor.yml

@@ -0,0 +1,23 @@
+name: GitHub Actions Security Analysis with zizmor 🌈
+
+on:
+  push:
+    branches: ["livekit", "full-mesh"]
+  pull_request: {}
+
+permissions: {}
+
+jobs:
+  zizmor:
+    name: Run zizmor 🌈
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write # Required for upload-sarif (used by zizmor-action) to upload SARIF files.
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+
+      - name: Run zizmor 🌈
+        uses: zizmorcore/zizmor-action@71321a20a9ded102f6e9ce5718a2fcec2c4f70d8 # v0.5.2

.gitignore

@@ -8,7 +8,9 @@ dist-ssr
 .idea/
 public/config.json
 backend/synapse_tmp/*
+backend/synapse_tmp_othersite/*
 /coverage
+config.json
 
 # Yarn
 yarn-error.log
@@ -27,4 +29,4 @@ yarn-error.log
 /test-results/
 /playwright-report/
 /blob-report/
-/playwright/.cache/
+/playwright/.cache/

.node-version

@@ -1 +1 @@
-22
+24

Dockerfile

@@ -6,7 +6,7 @@ COPY ./dist /dist
 WORKDIR /dist/assets
 RUN gzip -k ../index.html *.js *.map *.css *.wasm *-app-*.json 
 
-FROM nginxinc/nginx-unprivileged:alpine
+FROM nginxinc/nginx-unprivileged:alpine-slim
 
 COPY --from=builder ./dist /app
 

README.md

@@ -3,6 +3,7 @@
 [![Chat](https://img.shields.io/matrix/webrtc:matrix.org)](https://matrix.to/#/#webrtc:matrix.org)
 [![Localazy](https://img.shields.io/endpoint?url=https%3A%2F%2Fconnect.localazy.com%2Fstatus%2Felement-call%2Fdata%3Fcontent%3Dall%26title%3Dlocalazy%26logo%3Dtrue)](https://localazy.com/p/element-call)
 [![License](https://img.shields.io/github/license/element-hq/element-call)](LICENSE-AGPL-3.0)
+[![Codecov](https://img.shields.io/codecov/c/github/element-hq/element-call)](https://app.codecov.io/gh/element-hq/element-call)
 
 [🎬 Live Demo 🎬](https://call.element.io)
 
@@ -143,7 +144,8 @@ via the `org.matrix.msc4143.rtc_foci` key, e.g.:
 where the format for MatrixRTC using LiveKit backend is defined in
 [MSC4195](https://github.com/hughns/matrix-spec-proposals/blob/hughns/matrixrtc-livekit/proposals/4195-matrixrtc-livekit.md).
 In the example above Matrix clients do discover a focus of type `livekit` which
-points them to a Matrix LiveKit JWT Auth Service via `livekit_service_url`.
+points them to a [MatrixRTC Authorization Service](https://github.com/element-hq/lk-jwt-service)
+via `livekit_service_url`.
 
 ### Backend Selection
 
@@ -154,9 +156,9 @@ points them to a Matrix LiveKit JWT Auth Service via `livekit_service_url`.
   the **first participant who joined the call** defines via the `foci_preferred`
   key in their `org.matrix.msc3401.call.member` which actual MatrixRTC backend
   will be used for this call.
-- During the actual call join flow, the **LiveKit JWT Auth Service** provides
-  the client with the **LiveKit SFU WebSocket URL** and an **access JWT token**
-  in order to exchange media via WebRTC.
+- During the actual call join flow, the **[MatrixRTC Authorization Service](https://github.com/element-hq/lk-jwt-service)**
+  provides the client with the **LiveKit SFU WebSocket URL** and an
+  **access JWT token** in order to exchange media via WebRTC.
 
 The example below illustrates how backend selection works across **Matrix
 federation**, using the setup from sites A, B, and C. It demonstrates backend
@@ -205,22 +207,22 @@ See also:
 ### Backend
 
 A docker compose file `dev-backend-docker-compose.yml` is provided to start the
-whole stack of components which is required for a local development environment:
+whole stack of components which is required for a local development environment
+including federation:
 
-- Minimum Synapse Setup (servername: `synapse.m.localhost`)
-- LiveKit Authorization Service (Note requires Federation API and hence a TLS reverse proxy)
-- Minimum LiveKit SFU Setup using dev defaults for config
-- Redis db for completeness
+- Minimum Synapse Setup (servernameis: `synapse.m.localhost`, `synapse.othersite.m.localhost`)
+- MatrixRTC Authorization Service (Note requires Federation API and hence a TLS reverse proxy)
+- Minimum LiveKit SFU setup using dev defaults for config
 - Minimum `localhost` Certificate Authority (CA) for Transport Layer Security (TLS)
-  - Hostnames: `m.localhost`, `*.m.localhost`
+  - Hostnames: `m.localhost`, `*.m.localhost`, `*.othersite.m.localhost`
   - Add [./backend/dev_tls_local-ca.crt](./backend/dev_tls_local-ca.crt) to your web browsers trusted
     certificates
 - Minimum TLS reverse proxy for
-  - Synapse homeserver: `synapse.m.localhost`
-  - MatrixRTC backend: `matrix-rtc.m.localhost`
+  - Synapse homeserver: `synapse.m.localhost` and `synapse.othersite.m.localhost`
+  - MatrixRTC backend: `matrix-rtc.m.localhost` and `matrix-rtc.othersite.m.localhost`
   - Local Element Call development `call.m.localhost` via `yarn dev --host `
-  - Element Web `app.m.localhost`
-  - Note certificates will expire on Thu, 03 May 2035 10:32:02 GMT
+  - Element Web `app.m.localhost` and `app.othersite.m.localhost`
+  - Note certificates will expire on Thr, 20 September 2035 14:27:35 CEST
 
 These use a test 'secret' published in this repository, so this must be used
 only for local development and **_never be exposed to the public Internet._**

backend/dev_homeserver-othersite.yaml

@@ -0,0 +1,66 @@
+server_name: "synapse.othersite.m.localhost"
+public_baseurl: https://synapse.othersite.m.localhost/
+
+pid_file: /data/homeserver.pid
+
+listeners:
+  - port: 18008
+    tls: false
+    type: http
+    x_forwarded: true
+    resources:
+      - names: [client, federation, openid]
+        compress: false
+
+database:
+  name: sqlite3
+  args:
+    database: /data/homeserver.db
+
+media_store_path: /data/media_store
+signing_key_path: "/data/SERVERNAME.signing.key"
+
+# Due to custom TLS certificate with domains
+# - m.localhost, localhost
+# - *.m.localhost
+# - *.othersite.m.localhost
+# we disable certificate verification to allow for federation
+# WARNING: DO NOT USE IN PRODUCTION!!!
+federation_verify_certificates: false
+ip_range_blacklist: []
+trusted_key_servers:
+  - server_name: "synapse.m.localhost"
+    accept_keys_insecurely: true
+
+experimental_features:
+  # MSC3266: Room summary API. Used for knocking over federation
+  msc3266_enabled: true
+  # MSC4222 needed for syncv2 state_after. This allow clients to
+  # correctly track the state of the room.
+  msc4222_enabled: true
+  # sticky events for MatrixRTC user state
+  msc4354_enabled: true
+
+# The maximum allowed duration by which sent events can be delayed, as
+# per MSC4140. Must be a positive value if set.  Defaults to no
+# duration (null), which disallows sending delayed events.
+max_event_delay_duration: 24h
+
+# Required for Element Call in Single Page Mode due to on-the-fly user registration
+enable_registration: true
+enable_registration_without_verification: true
+
+report_stats: false
+serve_server_wellknown: true
+
+# Ratelimiting settings for client actions (registration, login, messaging).
+#
+# Each ratelimiting configuration is made of two parameters:
+#   - per_second: number of requests a client can send per second.
+#   - burst_count: number of requests a client can send before being throttled.
+
+rc_message:
+  # This needs to match at least the heart-beat frequency plus a bit of headroom
+  # Currently the heart-beat is every 5 seconds which translates into a rate of 0.2s
+  per_second: 0.5
+  burst_count: 30

backend/dev_homeserver.yaml

@@ -19,8 +19,18 @@ database:
 
 media_store_path: /data/media_store
 signing_key_path: "/data/SERVERNAME.signing.key"
+
+# Due to custom TLS certificate with domains
+# - m.localhost, localhost
+# - *.m.localhost
+# - *.othersite.m.localhost
+# we disable certificate verification to allow for federation.
+# WARNING: DO NOT USE IN PRODUCTION!!!
+federation_verify_certificates: false
+ip_range_blacklist: []
 trusted_key_servers:
-  - server_name: "matrix.org"
+  - server_name: "synapse.othersite.m.localhost"
+    accept_keys_insecurely: true
 
 experimental_features:
   # MSC3266: Room summary API. Used for knocking over federation
@@ -28,12 +38,21 @@ experimental_features:
   # MSC4222 needed for syncv2 state_after. This allow clients to
   # correctly track the state of the room.
   msc4222_enabled: true
+  # sticky events for MatrixRTC user state
+  msc4354_enabled: true
 
 # The maximum allowed duration by which sent events can be delayed, as
 # per MSC4140. Must be a positive value if set.  Defaults to no
 # duration (null), which disallows sending delayed events.
 max_event_delay_duration: 24h
 
+# Required for Element Call in Single Page Mode due to on-the-fly user registration
+enable_registration: true
+enable_registration_without_verification: true
+
+report_stats: false
+serve_server_wellknown: true
+
 # Ratelimiting settings for client actions (registration, login, messaging).
 #
 # Each ratelimiting configuration is made of two parameters:
@@ -45,10 +64,3 @@ rc_message:
   # Currently the heart-beat is every 5 seconds which translates into a rate of 0.2s
   per_second: 0.5
   burst_count: 30
-
-# Required for Element Call in Single Page Mode due to on-the-fly user registration
-enable_registration: true
-enable_registration_without_verification: true
-
-report_stats: false
-serve_server_wellknown: true

backend/dev_livekit-othersite.yaml

@@ -0,0 +1,20 @@
+port: 17880
+bind_addresses:
+  - "0.0.0.0"
+rtc:
+  tcp_port: 17881
+  port_range_start: 50300
+  port_range_end: 50400
+  use_external_ip: false
+turn:
+  enabled: false
+  domain: localhost
+  cert_file: ""
+  key_file: ""
+  tls_port: 5349
+  udp_port: 443
+  external_tls: true
+keys:
+  devkey: secret
+room:
+  auto_create: false

backend/dev_livekit.yaml

@@ -6,11 +6,6 @@ rtc:
   port_range_start: 50100
   port_range_end: 50200
   use_external_ip: false
-#redis:
-#    address: redis:6379
-#    username: ""
-#    password: ""
-#    db: 0
 turn:
   enabled: false
   domain: localhost
@@ -21,3 +16,5 @@ turn:
   external_tls: true
 keys:
   devkey: secret
+room:
+  auto_create: false

backend/dev_nginx.conf

@@ -1,4 +1,5 @@
 # Synapse reverse proxy including .well-known/matrix/client
+# domain synapse.m.localhost
 server {
     listen                  80;
     listen                  [::]:80;
@@ -26,14 +27,53 @@ server {
     # This is also required for development environment.
     # Reason: the lk-jwt-service uses the federation API for the openid token
     #         verification, which requires TLS
-    location / {
-        proxy_pass "http://homeserver:8008";
+    location ~ ^(/_matrix|/_synapse/client)  {
+        proxy_pass "http://homeserver:8008";       
         proxy_http_version 1.1;
-        proxy_set_header Upgrade $http_upgrade;
-        proxy_set_header Connection "upgrade";
-        proxy_set_header Host $host;
         proxy_set_header X-Forwarded-For $remote_addr;
         proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header Host $host;                
+    }
+
+    error_page   500 502 503 504  /50x.html;
+
+}
+
+# Synapse reverse proxy including .well-known/matrix/client
+# domain synapse.othersite.m.localhost
+server {
+    listen                  80;
+    listen                  [::]:80;
+    listen                  443 ssl;
+    listen                  8448 ssl;
+    listen                  [::]:443 ssl;
+    listen                  [::]:8448 ssl;
+    server_name             synapse.othersite.m.localhost;
+    ssl_certificate         /root/ssl/cert.pem;
+    ssl_certificate_key     /root/ssl/key.pem;
+
+    # well-known config adding rtc_foci backend
+    # Note well-known is currently not effective due to:
+    # https://spec.matrix.org/v1.12/client-server-api/#well-known-uri the spec
+    # says it must be at https://$server_name/... (implied port 443) Hence, we
+    # currently rely for local development environment on deprecated config.json
+    # setting for livekit_service_url
+    location /.well-known/matrix/client {
+        add_header Access-Control-Allow-Origin *;
+        return 200 '{"m.homeserver": {"base_url": "https://synapse.othersite.m.localhost"}, "org.matrix.msc4143.rtc_foci": [{"type": "livekit", "livekit_service_url": "https://matrix-rtc.othersite.m.localhost/livekit/jwt"}]}';
+        default_type application/json;
+    }
+
+    # Reverse proxy for Matrix Synapse Homeserver
+    # This is also required for development environment.
+    # Reason: the lk-jwt-service uses the federation API for the openid token
+    #         verification, which requires TLS
+    location ~ ^(/_matrix|/_synapse/client)  {
+        proxy_pass "http://homeserver-1:18008";
+        proxy_http_version 1.1;
+        proxy_set_header X-Forwarded-For $remote_addr;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header Host $host;                
     }
 
     error_page   500 502 503 504  /50x.html;
@@ -41,19 +81,23 @@ server {
 }
 
 # MatrixRTC reverse proxy
+# domain matrix-rtc.m.localhost
 # - MatrixRTC Authorization Service
 # - LiveKit SFU websocket signaling connection
+upstream jwt-auth-services {
+    server auth-server:6080;
+    server host.docker.internal:6080;
+}
+
 server {
-    listen                  80;
-    listen                  [::]:80;
     listen                  443 ssl;
     listen                  [::]:443 ssl;
-    listen                  8448 ssl;
-    listen                  [::]:8448 ssl;
     server_name             matrix-rtc.m.localhost;
     ssl_certificate         /root/ssl/cert.pem;
     ssl_certificate_key     /root/ssl/key.pem;
 
+    http2 on;
+
 
     location ^~ /livekit/jwt/ {
 
@@ -62,8 +106,9 @@ server {
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
       proxy_set_header X-Forwarded-Proto $scheme;
 
-      # JWT Service running at port 8080
-      proxy_pass http://auth-server:8080/;
+      # JWT Service running at port 6080
+      proxy_pass http://jwt-auth-services/;
+    
     }
 
     location ^~ /livekit/sfu/ {
@@ -88,7 +133,58 @@ server {
 
 }
 
-# Convenience reverse proxy for the call.m.localhost domain to yarn dev --host
+# MatrixRTC reverse proxy
+# domain matrix-rtc.othersite.m.localhost
+# - MatrixRTC Authorization Service
+# - LiveKit SFU websocket signaling connection
+server {
+    listen                  443 ssl;
+    listen                  [::]:443 ssl;
+    server_name             matrix-rtc.othersite.m.localhost;
+    ssl_certificate         /root/ssl/cert.pem;
+    ssl_certificate_key     /root/ssl/key.pem;
+
+    http2 on;
+
+
+    location ^~ /livekit/jwt/ {
+
+      proxy_set_header Host $host;
+      proxy_set_header X-Real-IP $remote_addr;
+      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+      proxy_set_header X-Forwarded-Proto $scheme;
+
+      # JWT Service running at port 16080
+      proxy_pass http://auth-service-1:16080/;
+    
+    }
+
+    location ^~ /livekit/sfu/ {
+      proxy_set_header Host $host;
+      proxy_set_header X-Real-IP $remote_addr;
+      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+      proxy_set_header X-Forwarded-Proto $scheme;
+
+      proxy_send_timeout 120;
+      proxy_read_timeout 120;
+      proxy_buffering off;
+
+      proxy_set_header Accept-Encoding gzip;
+      proxy_set_header Upgrade $http_upgrade;
+      proxy_set_header Connection "upgrade";
+
+      # LiveKit SFU websocket connection running at port 17880
+      proxy_pass http://livekit-sfu-1:17880/;
+    }
+    
+    error_page   500 502 503 504  /50x.html;
+
+}
+
+# Convenience reverse proxy for the call.m.localhost domain to element call
+# running on the host either via
+# - yarn dev --host or
+# - falling back to http (the element call docker container)
 server {
     listen                  80;
     listen                  [::]:80;
@@ -104,7 +200,7 @@ server {
     ssl_certificate         /root/ssl/cert.pem;
     ssl_certificate_key     /root/ssl/key.pem;
 
-
+    # 1. Attempt HTTPS first
     location ^~ / {
 
       proxy_set_header Host $host;
@@ -115,8 +211,23 @@ server {
       proxy_pass https://host.docker.internal:3000;
       proxy_ssl_verify              off;
 
+      # 2. Redirect specific errors (e.g., 502 Bad Gateway  or 504 Timeout)
+      # to the named fallback location
+      error_page 502 503 504 = @http_fallback;
+
+    }
+
+    # 3. Fallback location using HTTP
+    location @http_fallback {
+
+      proxy_set_header Host $host;
+      proxy_set_header X-Real-IP $remote_addr;
+      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+      proxy_set_header X-Forwarded-Proto $scheme;
+
+      proxy_pass http://host.docker.internal:8080;
+
     }
-    
     error_page   500 502 503 504  /50x.html;
 
 }
@@ -153,3 +264,36 @@ server {
     error_page   500 502 503 504  /50x.html;
 
 }
+
+# Convenience reverse proxy app.othersite.m.localhost for element web
+server {
+    listen                  80;
+    listen                  [::]:80;
+    server_name             app.othersite.m.localhost;
+
+    return 301 https://$host$request_uri;
+}
+
+server {
+    listen                  443 ssl;
+    listen                  [::]:443 ssl;
+    server_name             app.othersite.m.localhost;
+    ssl_certificate         /root/ssl/cert.pem;
+    ssl_certificate_key     /root/ssl/key.pem;
+
+
+    location ^~ / {
+
+      proxy_set_header Host $host;
+      proxy_set_header X-Real-IP $remote_addr;
+      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+      proxy_set_header X-Forwarded-Proto $scheme;
+
+      proxy_pass http://element-web-1:18081;
+      proxy_ssl_verify              off;
+
+    }
+    
+    error_page   500 502 503 504  /50x.html;
+
+}

backend/dev_tls_local-ca.crt

@@ -1,19 +1,19 @@
 -----BEGIN CERTIFICATE-----
-MIIDGjCCAgKgAwIBAgIUGdiFHhH4KL2pqBjMQHQ+PVIkSV8wDQYJKoZIhvcNAQEL
-BQAwHjEcMBoGA1UEAwwTRWxlbWVudCBDYWxsIERldiBDQTAeFw0yNTA1MDUxMDMy
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-/cJnuI1By4tBsBmSz851i6HJ4t5k99Be+6GQVzi0e7zzfxTHZE4xP2J6Ox8QbPsP
-n0m76nIp/WbWaJqzvIIjJhmUUPPv+4wN+eOArgjiGLzptM2qTtGZtd0c9nS5gvep
-+mEbSUN9zkhAroZf80wf+hEvy+fJ94VbZ9QjTzTg7odZLrsXGIe8DaG63EYRQ25b
-W5iYBAreln5fGSt7qHsGfqwZibTEk/Lx3dydO1Kg
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+HSMEGDAWgBTXNfLAKVayGQda/JZLPszrpz6LVzAMBgNVHRMEBTADAQH/MA0GCSqG
+SIb3DQEBCwUAA4IBAQCvGfyopHHgZB+horGH6i/Xg41V+r4d0o092F1Lfr4vh86e
+XMakRw92vsyk/iWOnLPNPcpVWzPcvINaCs/bahgnGSOAnrA4jjcXqymyGIy/6xc5
+1EeZAxehiL9E5q4LQ841HDX0gps4ZzUO1BRYQcjG9Rdts83JO2ekkfHkZdNj2eQr
+KOrr92Na1/w+EQdo/T9Rs2ES623xKEOxPqb8d/rx5Z4DdeuGx1u+3AfS76Lpo4ni
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+7rKW/qDfEK9GUs0GWCs3+mJkNvOOxBwtMuQrL7ZF
 -----END CERTIFICATE-----

backend/dev_tls_local-ca.key

@@ -1,28 +1,28 @@
 -----BEGIN PRIVATE KEY-----
-MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQDA2y0hjmNn1vRs
-VSdy8IOfo8N1q9UgkhQWpGKXzPh+D5d1fnuJEmHIVwtDEtS/PwQ43LTmegChPtKH
-9jdTtG0IihW9Ja5YNG+9xAwaoA/sB3CGCBYsz+2/XjVUpXoBJXIPoFBWsn+K0oeF
-w9fweRO1z9abM4cl+LjKzMNM8CCyu9uI1MaGjYez2YIWvG854VucLxX7HSlMJxZN
-WnieUi7fMakuJhB2+aiIQjdKxy4E5RHNhzYG/LXhvP+wBYBDPNRsP3rtzEaE9HAv
-eL9KFGqd3R4cBia6r1WIXmpAzyu5RGP5Eou0TZlGkal96/bF0I7q/pKlL23Jt1BL
-PiQUKGKrAgMBAAECggEAAPX2kxi5AQ7ul82SzT1KgpSXyDHLdYaUyAoYnaX9RO+B
-8ylmpyeqygs4+KQS4EMJm9jpo85Oy37bIKdG3kljU6wQcKlL5Y+ZUOo1nzpV6fid
-hGVs6ts8VXw8KshKQ9AyccZ8L/pirUfgOffgTwfjY7/90zceAL/s98GuZWc62nkX
-55joQv/OikqYfAGP/U6Bp2Zyf23DwJB09Z3B6NnZj/ZyAbDrDEHuA15LhCOcCczp
-IU/mFEywBPHT9Tg4w4Beq78PeAETvku2UalYRLhP3RLlXr2oEbwUtINRVt2QjZ85
-Esps4uCqL/mgQluIebtudD9HL/YMlNPXue1mDXFxJQKBgQDgZZY4yJBcf488T1V6
-HNm06b/LvVGj253pKgw14hpY1xQu3Ymgzv1GEqzhSYdzxhpmj0tMUNHxAp+YdGQu
-SZ0wcPKhw0aYVkIjDRYDC3Wn5GJhyIEYHGYMo/n4l49UzHRBPOTDzp49DkHTKBgh
-XgIIazYT3CkjTIMRrkUv+qfIPQKBgQDcBGu/mqbjxs4sN3zqPS4aB21o6t6W0sXs
-ZP9w6RlTPQi5U2oRbftjZtYc0bbEgkMUImB1HwYPQT5pJ+MyC414xDvSc2exBr5d
-To6yyPIy78Tf5PHM12fpKV92nSvoz/pSjYcGxxDtKfPqu+t8mOJfjCV1lLLA+xuB
-DDaE4p8dBwKBgQCdAne6A5v/HMH8UQZeCxHJpESvKiiVnnU/UEx651nID7XvlNNX
-0X0mKqsMd4ZvW43ddSYan/JF0LAa3FW8jYWO/3jF9vzOWoysOdvNBZetgf/Uq5ao
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-aCASX3AVD2/XyC2MKkzc8Eg=
+MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQDHODfkrFsOkqCn
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+rzK/9MONtsjln7IejP+4mDlNupS6SF3zzHPBHjqKAQKBgQDtXUIKPiVTFS45yWtK
+XD62s3j8jfIi+22b/C30fCPtppn0cm/0zY+vovgWVUBnQXkExafRthZCuxnE8ry7
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++VZ8iU5GvdybUPl2C5WN8seaoQKBgQDW3EwVN2EEkChLRJbQYN2qpjn+0vYESMJ8
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+m2wJOAMxigNYZogwRfn2yRLL1BD+PBHD+H936xcX1bSJOUyPSGOC/xLhIQKBgQCb
+kCDd85ygyycBaAWxlZCor3WqFF/fNjbp5Aaepi9mMoBXSUs8eK7+UbelURHozEAY
+fpYaw3B4rTlp9vppdTZjb+/PlXB9v+zQCl+0gTyKGj4cIpiOk4F0co51eipOw7f4
+XUaZ0+CgxlmNq/W26iONjH+pU1YVQQA+Z6+zp/GW4QKBgQCrzYgeugxxqgJzyIRu
+0njJkIg+T5gHvsQrtpzq7LVob+HBiBiT7eDOeGDXTK8F//sk969QVrDMQsTMvGW9
+sG1oTqxciALTMqkJTf8+hT9Uogir0/iTbJUzTt5vPYpQOEQwQHIXMUTjZ9C6NDKT
+QlmeMCxeWyPYqoMfwKmdtDP/Iw==
 -----END PRIVATE KEY-----

backend/dev_tls_m.localhost.crt

@@ -1,21 +1,21 @@
 -----BEGIN CERTIFICATE-----
-MIIDZzCCAk+gAwIBAgIUXizLjwkdqepX0bh0K3abeJxj68IwDQYJKoZIhvcNAQEL
-BQAwHjEcMBoGA1UEAwwTRWxlbWVudCBDYWxsIERldiBDQTAeFw0yNTA1MDUxMzU5
-MTFaFw0zNTA1MDMxMzU5MTFaMBgxFjAUBgNVBAMMDSoubS5sb2NhbGhvc3QwggEi
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-BAIwADALBgNVHQ8EBAMCBaAwEwYDVR0lBAwwCgYIKwYBBQUHAwEwMAYDVR0RBCkw
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-J5ioN76+SCrTY0K0WKRy9oOXWO1/X3+VYcekp+0F3SGkd5w17jylCv1XIGHAdEsQ
-v2z2/aMI/7sAD2Q=
+MIIDgDCCAmigAwIBAgIUT9NYpZbrAKokSPSTE3zzsAMowvEwDQYJKoZIhvcNAQEL
+BQAwHjEcMBoGA1UEAwwTRWxlbWVudCBDYWxsIERldiBDQTAeFw0yNTA5MjIxMjI3
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+AMm56FNB7e1l0b1Fots730RfpCPuXpiAxL4pisS0X1dMVeeM
 -----END CERTIFICATE-----

backend/dev_tls_m.localhost.key

@@ -1,28 +1,28 @@
 -----BEGIN PRIVATE KEY-----
-MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCrzGSScSgaQuZd
-ELGFYiLiYRwrLKyUdNr0rsPcOo0bvbeZ3zQMeUMRNlA69zGFdarumiDRXUoAmZI3
-9WmH95aX3d+AU7EFnWev7xpWSVhSYj8T0d4rke8HjGk3LpaffJ93tbJuagBIH1ou
-uN6AOdzWs8hpRYIomWleEeeuVnnfaMwaXOdc+ihJJ6wzm2hwQSfdpjZPWBDd/DFf
-t1ZXxIZOCjDsrEIiI7uU8iZPLB3QEM/tgxSSAOxrcKvQvxZokk+FD7aMJFP71Ifi
-eLCEzMTP1VXatP7UTAKAqB2NyDJ8m3IHbOINiqcdFvFR3R1D9bXOYE4oRynNvYZr
-QUGnL2RtAgMBAAECggEAJaFQii8U/KOYt9vXNoMnZvSkaeSQLLhn2V6Kciu1CtWE
-aMTWLsFE6nk+G5xXkYcTmM3T0GghtH3u5CjyI6EcsEkeEorCZJt0wbmayDmqiekR
-LfMzOdHuTHX5+edPgMGYYG1BFyRKyYFsjH1b5zRFZhXdGQnrl5760GsVlz9D1KZQ
-iHcT+q1S2tmZeoUukQnADENKXUMCyTGM5FCddgNtsWnGDsTDayh7hUdvDkB+mW4G
-lSp+BZuc3PCwpbD6qkXvfugWs6CUAAtXoV3ceWgxQ+TEnNlwxaG1AyugfgNUBolk
-8xgeZt4r5QId03jsHDf7hpBAofcaCd5EMIIQYFvWoQKBgQDlbAvAzEFPTZZn2nRV
-Xagw4xjqVc1LLEKLCWq0N5rEkwn0h90Dz5N7/3NuonP/sIDsDHCbyiOYBI1Ck6Xi
-0WuB+OyKDh+xeF2mekN9G9ywPahdK5lT/TVsxXFyZlwtVv1x/6KBO4yv5URizxqU
-gyAPDDxfD/KcNjkOBaodWEwQGQKBgQC/s2gPDBtQkjLwkHXchBomLww5eLlVrac1
-WK4UX6uSdOgrjJ375OOgMTxe8NVZdOuAKytGXRWDwgH3nVWvuZhe7dGlX3JMuSer
-e9VwDpBESrvqcR4ruL6wm8wej6BXyjH0wD3FHb0S5HfuBDxTn+4bDwrbRzOUMNgy
-lSppuflxdQKBgQDiZcIfazFT8evn5nMAvuC4BZNTxIJHmZC9JfjPiUPIkpWzYtOe
-7BvNtKOT3Op9uw8uYYRKqKqBXJSNy6ha8XCXHS9HeXKbLn20SFkLQBCDNwVLlDfF
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-c7vF4HAZFr1sch62cz/oWnVvkhOf4Q5zs7ixQSOLJtOQqnwSgK9TpFs7s47ZBbJR
-kBRAru2Ua9Hv1Bo8VnMxczV6h1roneDlvEf/GyHX33nnrbKQGrrXjJlU3wl5NaAf
-p5v3cHvapUQ5yIZ/6lBUOzc6xMJOxCHxmKSr7Rg5AoGAbEE4lt6Xh2dnBPJ81eNI
-IDrw/3ITY53qAY4Bx88CByIFuu8CEUdUZprh98jSl6ic1tMinZfUhRMwABLrUD51
-DGst8iGLPD9u83iMcUHI/L+p7AbxrKLvWXZrF5UZm440c9mSWqfhPaTBosPtNDsG
-LfETwH1flKXMTXd2xA9RTE4=
+MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQDK1DNwTQWmyK71
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+JmFF+eV9P/axfxkon+bQWITwP1PLC1UOTK7lR0EcVan5aY6WMs/6RfO4Gw/dvuiV
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+uWaUXCx1etpNqPPWcG1Z9OKLLRnk+kjgKGOqq4mObGvGreNeBot7bHOJZADtwMMI
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+X26uT0m+Wx8MQyQWA7Sqy6DQNJo++IZkvr7a3cidqBOUPs+QvnIV5JsUb2gp5tGn
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+OE1JtNaVPbLBo6kG5al7Sj4Z0zhRt+iv93S2lZMkBQKBgQD2+FpLTqyLO1NDOFkE
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+srrk4CTuGcBPEJvBNemF0Gfvv61j8MdkoAdMbIyhAoGAfGR6yZLBmRMsW5PKmcpT
+nq2oSeUpmtGZra6pWz/3XU7AgrCLcx1DmqEjm4w7y5NQJmxyMZqqdTJILCjr3Srt
++2F0NqQL6Li+xQGibAvDj0Jxyol38RvFC0J/w2vQmuF0hTuH95yknSd7FPXK+DPG
+qYgXLjun9dht6kx9vGJ69wI=
 -----END PRIVATE KEY-----

backend/dev_tls_setup

@@ -34,5 +34,6 @@ subjectAltName = @alt_names
 DNS.1 = localhost
 DNS.2 = m.localhost
 DNS.3 = *.m.localhost
+DNS.4 = *.othersite.m.localhost
 EOF
 )

backend/ew.test.othersite.config.json

@@ -0,0 +1,53 @@
+{
+  "default_server_config": {
+    "m.homeserver": {
+      "base_url": "https://synapse.othersite.m.localhost",
+      "server_name": "synapse.othersite.m.localhost"
+    }
+  },
+  "disable_custom_urls": false,
+  "disable_guests": false,
+  "disable_login_language_selector": false,
+  "disable_3pid_login": false,
+  "force_verification": false,
+  "brand": "Element",
+  "integrations_ui_url": "https://scalar.vector.im/",
+  "integrations_rest_url": "https://scalar.vector.im/api",
+  "integrations_widgets_urls": [
+    "https://scalar.vector.im/_matrix/integrations/v1",
+    "https://scalar.vector.im/api",
+    "https://scalar-staging.vector.im/_matrix/integrations/v1",
+    "https://scalar-staging.vector.im/api",
+    "https://scalar-staging.riot.im/scalar/api"
+  ],
+  "default_widget_container_height": 280,
+  "default_country_code": "GB",
+  "show_labs_settings": false,
+  "features": {
+    "feature_element_call_video_rooms": true,
+    "feature_video_rooms": true,
+    "feature_group_calls": true,
+    "feature_release_announcement": false
+  },
+  "default_federate": true,
+  "default_theme": "light",
+  "room_directory": {
+    "servers": ["matrix.org"]
+  },
+  "enable_presence_by_hs_url": {
+    "https://matrix.org": false,
+    "https://matrix-client.matrix.org": false
+  },
+  "setting_defaults": {
+    "breadcrumbs": true,
+    "feature_group_calls": true
+  },
+  "jitsi": {
+    "preferred_domain": "meet.element.io"
+  },
+  "element_call": {
+    "participant_limit": 8,
+    "brand": "Element Call"
+  },
+  "map_style_url": "https://api.maptiler.com/maps/streets/style.json?key=fU3vlMsMn4Jb6dnEIFsx"
+}

backend/playwright_homeserver-othersite.yaml

@@ -0,0 +1,83 @@
+server_name: "synapse.othersite.m.localhost"
+public_baseurl: https://synapse.othersite.m.localhost/
+
+pid_file: /data/homeserver.pid
+
+listeners:
+  - port: 18008
+    tls: false
+    type: http
+    x_forwarded: true
+    resources:
+      - names: [client, federation, openid]
+        compress: false
+
+database:
+  name: sqlite3
+  args:
+    database: /data/homeserver.db
+
+media_store_path: /data/media_store
+signing_key_path: "/data/SERVERNAME.signing.key"
+
+# Due to custom TLS certificate with domains
+# - m.localhost, localhost
+# - *.m.localhost
+# - *.othersite.m.localhost
+# we disable certificate verification to allow for federation.
+# WARNING: DO NOT USE IN PRODUCTION!!!
+federation_verify_certificates: false
+ip_range_blacklist: []
+trusted_key_servers:
+  - server_name: "synapse.m.localhost"
+    accept_keys_insecurely: true
+
+experimental_features:
+  # MSC3266: Room summary API. Used for knocking over federation
+  msc3266_enabled: true
+  # MSC4222 needed for syncv2 state_after. This allow clients to
+  # correctly track the state of the room.
+  msc4222_enabled: true
+  # sticky events for MatrixRTC user state
+  msc4354_enabled: true
+
+# The maximum allowed duration by which sent events can be delayed, as
+# per MSC4140. Must be a positive value if set.  Defaults to no
+# duration (null), which disallows sending delayed events.
+max_event_delay_duration: 24h
+
+# Required for Element Call in Single Page Mode due to on-the-fly user registration
+enable_registration: true
+enable_registration_without_verification: true
+
+report_stats: false
+serve_server_wellknown: true
+
+# Ratelimiting settings for client actions (registration, login, messaging).
+#
+# Each ratelimiting configuration is made of two parameters:
+#   - per_second: number of requests a client can send per second.
+#   - burst_count: number of requests a client can send before being throttled.
+
+rc_message:
+  per_second: 10000
+  burst_count: 10000
+
+rc_delayed_event_mgmt:
+  per_second: 10000
+  burst_count: 10000
+
+rc_login:
+  address:
+    per_second: 10000
+    burst_count: 10000
+  account:
+    per_second: 10000
+    burst_count: 10000
+  failed_attempts:
+    per_second: 10000
+    burst_count: 10000
+
+rc_registration:
+  per_second: 10000
+  burst_count: 10000

backend/playwright_homeserver.yaml

@@ -19,8 +19,18 @@ database:
 
 media_store_path: /data/media_store
 signing_key_path: "/data/SERVERNAME.signing.key"
+
+# Due to custom TLS certificate with domains
+# - m.localhost, localhost
+# - *.m.localhost
+# - *.othersite.m.localhost
+# we disable certificate verification to allow for federation.
+# WARNING: DO NOT USE IN PRODUCTION!!!
+federation_verify_certificates: false
+ip_range_blacklist: []
 trusted_key_servers:
-  - server_name: "matrix.org"
+  - server_name: "synapse.othersite.m.localhost"
+    accept_keys_insecurely: true
 
 experimental_features:
   # MSC3266: Room summary API. Used for knocking over federation
@@ -28,12 +38,21 @@ experimental_features:
   # MSC4222 needed for syncv2 state_after. This allow clients to
   # correctly track the state of the room.
   msc4222_enabled: true
+  # sticky events for MatrixRTC user state
+  msc4354_enabled: true
 
 # The maximum allowed duration by which sent events can be delayed, as
 # per MSC4140. Must be a positive value if set.  Defaults to no
 # duration (null), which disallows sending delayed events.
 max_event_delay_duration: 24h
 
+# Required for Element Call in Single Page Mode due to on-the-fly user registration
+enable_registration: true
+enable_registration_without_verification: true
+
+report_stats: false
+serve_server_wellknown: true
+
 # Ratelimiting settings for client actions (registration, login, messaging).
 #
 # Each ratelimiting configuration is made of two parameters:
@@ -44,6 +63,10 @@ rc_message:
   per_second: 10000
   burst_count: 10000
 
+rc_delayed_event_mgmt:
+  per_second: 10000
+  burst_count: 10000
+
 rc_login:
   address:
     per_second: 10000
@@ -58,10 +81,3 @@ rc_login:
 rc_registration:
   per_second: 10000
   burst_count: 10000
-
-# Required for Element Call in Single Page Mode due to on-the-fly user registration
-enable_registration: true
-enable_registration_without_verification: true
-
-report_stats: false
-serve_server_wellknown: true

backend/redis.conf

@@ -1,5 +0,0 @@
-bind 0.0.0.0
-protected-mode yes
-port 6379
-timeout 0
-tcp-keepalive 300

codecov.yaml

@@ -13,7 +13,6 @@ coverage:
         informational: true
     patch:
       default:
-        # Encourage (but don't enforce) 80% coverage on all lines that a PR
+        # Enforce 80% coverage on all lines that a PR
         # touches
         target: 80%
-        informational: true

config/config.devenv.json

@@ -8,5 +8,12 @@
   "features": {
     "feature_use_device_session_member_events": true
   },
-  "ssla": "https://static.element.io/legal/element-software-and-services-license-agreement-uk-1.pdf"
+  "ssla": "https://static.element.io/legal/element-software-and-services-license-agreement-uk-1.pdf",
+  "matrix_rtc_session": {
+    "wait_for_key_rotation_ms": 3000,
+    "membership_event_expiry_ms": 180000000,
+    "delayed_leave_event_delay_ms": 18000,
+    "delayed_leave_event_restart_ms": 4000,
+    "network_error_retry_ms": 100
+  }
 }

config/config.sample.json

@@ -11,5 +11,12 @@
   "features": {
     "feature_use_device_session_member_events": true
   },
-  "ssla": "https://static.element.io/legal/element-software-and-services-license-agreement-uk-1.pdf"
+  "ssla": "https://static.element.io/legal/element-software-and-services-license-agreement-uk-1.pdf",
+  "matrix_rtc_session": {
+    "wait_for_key_rotation_ms": 3000,
+    "membership_event_expiry_ms": 180000000,
+    "delayed_leave_event_delay_ms": 18000,
+    "delayed_leave_event_restart_ms": 4000,
+    "network_error_retry_ms": 100
+  }
 }

config/config_netlify_preview.json

@@ -5,12 +5,20 @@
       "server_name": "call-unstable.ems.host"
     }
   },
+  "ssla": "https://static.element.io/legal/element-software-and-services-license-agreement-uk-1.pdf",
+  "matrix_rtc_session": {
+    "wait_for_key_rotation_ms": 3000,
+    "membership_event_expiry_ms": 180000000,
+    "delayed_leave_event_delay_ms": 18000,
+    "delayed_leave_event_restart_ms": 4000,
+    "network_error_retry_ms": 100
+  },
   "posthog": {
     "api_key": "phc_rXGHx9vDmyEvyRxPziYtdVIv0ahEv8A9uLWFcCi1WcU",
     "api_host": "https://posthog-element-call.element.io"
   },
   "rageshake": {
-    "submit_url": "https://element.io/bugreports/submit"
+    "submit_url": "https://rageshakes.element.io/api/submit"
   },
   "sentry": {
     "environment": "netlify-pr-preview",

config/config_netlify_preview_sdk.json

@@ -0,0 +1,16 @@
+{
+  "default_server_config": {
+    "m.homeserver": {
+      "base_url": "https://call-unstable.ems.host",
+      "server_name": "call-unstable.ems.host"
+    }
+  },
+  "ssla": "https://static.element.io/legal/element-software-and-services-license-agreement-uk-1.pdf",
+  "matrix_rtc_session": {
+    "wait_for_key_rotation_ms": 3000,
+    "membership_event_expiry_ms": 180000000,
+    "delayed_leave_event_delay_ms": 18000,
+    "delayed_leave_event_restart_ms": 4000,
+    "network_error_retry_ms": 100
+  }
+}

config/otel_dev/README.md

@@ -1,5 +1,12 @@
 # OpenTelemetry Collector for development
 
+## Edit:
+
+Open telemetry has been removed in: https://github.com/element-hq/element-call/pull/3586
+Check this PR to get back the implementation or to use it as reference to add it back.
+
+---
+
 This directory contains a docker compose file that starts a jaeger all-in-one instance
 with an in-memory database, along with a standalone OpenTelemetry collector that forwards
 traces into the jaeger. Jaeger has a built-in OpenTelemetry collector, but it can't be

dev-backend-docker-compose.yml

@@ -3,27 +3,52 @@ networks:
 
 services:
   auth-service:
-    image: ghcr.io/element-hq/lk-jwt-service:latest-ci
+    image: ghcr.io/element-hq/lk-jwt-service:sha-f8ddd00
+    pull_policy: always
     hostname: auth-server
     environment:
-      - LIVEKIT_JWT_PORT=8080
+      - LIVEKIT_JWT_PORT=6080
       - LIVEKIT_URL=wss://matrix-rtc.m.localhost/livekit/sfu
       - LIVEKIT_KEY=devkey
       - LIVEKIT_SECRET=secret
       # If the configured homeserver runs on localhost, it'll probably be using
       # a self-signed certificate
       - LIVEKIT_INSECURE_SKIP_VERIFY_TLS=YES_I_KNOW_WHAT_I_AM_DOING
+      - LIVEKIT_FULL_ACCESS_HOMESERVERS=*
     deploy:
       restart_policy:
         condition: on-failure
     ports:
       # HOST_PORT:CONTAINER_PORT
-      - 8080:8080
+      - 6080:6080
+    networks:
+      - ecbackend
+
+  auth-service-1:
+    image: ghcr.io/element-hq/lk-jwt-service:sha-f8ddd00
+    pull_policy: always
+    hostname: auth-server-1
+    environment:
+      - LIVEKIT_JWT_PORT=16080
+      - LIVEKIT_URL=wss://matrix-rtc.othersite.m.localhost/livekit/sfu
+      - LIVEKIT_KEY=devkey
+      - LIVEKIT_SECRET=secret
+      # If the configured homeserver runs on localhost, it'll probably be using
+      # a self-signed certificate
+      - LIVEKIT_INSECURE_SKIP_VERIFY_TLS=YES_I_KNOW_WHAT_I_AM_DOING
+      - LIVEKIT_FULL_ACCESS_HOMESERVERS=*
+    deploy:
+      restart_policy:
+        condition: on-failure
+    ports:
+      # HOST_PORT:CONTAINER_PORT
+      - 16080:16080
     networks:
       - ecbackend
 
   livekit:
-    image: livekit/livekit-server:latest
+    image: livekit/livekit-server:v1.9.11
+    pull_policy: always
     hostname: livekit-sfu
     command: --dev --config /etc/livekit.yaml
     restart: unless-stopped
@@ -41,20 +66,30 @@ services:
     networks:
       - ecbackend
 
-  redis:
-    image: redis:6-alpine
-    command: redis-server /etc/redis.conf
+  livekit-1:
+    image: livekit/livekit-server:v1.9.11
+    pull_policy: always
+    hostname: livekit-sfu-1
+    command: --dev --config /etc/livekit.yaml
+    restart: unless-stopped
+    # The SFU seems to work far more reliably when we let it share the host
+    # network rather than opening specific ports (but why?? we're not missing
+    # any…)
     ports:
       # HOST_PORT:CONTAINER_PORT
-      - 6379:6379
+      - 17880:17880/tcp
+      - 17881:17881/tcp
+      - 17882:17882/tcp
+      - 50300-50400:50300-50400/udp
     volumes:
-      - ./backend/redis.conf:/etc/redis.conf:Z
+      - ./backend/dev_livekit-othersite.yaml:/etc/livekit.yaml:Z
     networks:
       - ecbackend
 
   synapse:
     hostname: homeserver
-    image: docker.io/matrixdotorg/synapse:latest
+    image: ghcr.io/element-hq/synapse:latest
+    pull_policy: always
     environment:
       - SYNAPSE_CONFIG_PATH=/data/cfg/homeserver.yaml
       # Needed for rootless podman-compose such that the uid/gid mapping does
@@ -69,6 +104,24 @@ services:
     networks:
       - ecbackend
 
+  synapse-1:
+    hostname: homeserver-1
+    image: ghcr.io/element-hq/synapse:latest
+    pull_policy: always
+    environment:
+      - SYNAPSE_CONFIG_PATH=/data/cfg/homeserver.yaml
+      # Needed for rootless podman-compose such that the uid/gid mapping does
+      # fit local user uid. If the container runs as root (uid 0) it is fine as
+      # it actually maps to your non-root user on the host (e.g. 1000).
+      # Otherwise uid mapping will not match your non-root user.
+      - UID=0
+      - GID=0
+    volumes:
+      - ./backend/synapse_tmp_othersite:/data:Z
+      - ./backend/dev_homeserver-othersite.yaml:/data/cfg/homeserver.yaml:Z
+    networks:
+      - ecbackend
+
   element-web:
     image: ghcr.io/element-hq/element-web:develop
     pull_policy: always
@@ -81,10 +134,24 @@ services:
     networks:
       - ecbackend
 
+  element-web-1:
+    image: ghcr.io/element-hq/element-web:develop
+    pull_policy: always
+    volumes:
+      - ./backend/ew.test.othersite.config.json:/app/config.json:Z
+    environment:
+      ELEMENT_WEB_PORT: 18081
+    ports:
+      # HOST_PORT:CONTAINER_PORT
+      - "18081:18081"
+    networks:
+      - ecbackend
+
   nginx:
     #  see backend/dev_tls_setup for how to generate the tls certs
     hostname: synapse.m.localhost
     image: nginx:latest
+    pull_policy: always
     volumes:
       - ./backend/dev_nginx.conf:/etc/nginx/conf.d/default.conf:Z
       - ./backend/dev_tls_m.localhost.key:/root/ssl/key.pem:Z
@@ -100,4 +167,9 @@ services:
     depends_on:
       - synapse
     networks:
-      - ecbackend
+      ecbackend:
+        aliases:
+          - synapse.m.localhost
+          - synapse.othersite.m.localhost
+          - matrix-rtc.m.localhost
+          - matrix-rtc.othersite.m.localhost

docs/controls.md

@@ -1,7 +1,31 @@
 # Global JS controls
 
-A few aspects of Element Call's interface can be controlled through a global API on the `window`:
+A few aspects of Element Call's interface can be controlled through a global API on the `window`.
+
+## Picture-in-picture
 
 - `controls.canEnterPip(): boolean` Determines whether it's possible to enter picture-in-picture mode.
 - `controls.enablePip(): void` Puts the call interface into picture-in-picture mode. Throws if not in a call.
 - `controls.disablePip(): void` Takes the call interface out of picture-in-picture mode, restoring it to its natural display mode. Throws if not in a call.
+
+## Audio devices
+
+On mobile platforms (iOS, Android), web views do not reliably support selecting audio output devices such as the main speaker, earpiece, or headset. To address this limitation, the following functions allow the hosting application (e.g., Element Web, Element X) to manage audio devices via exposed JavaScript interfaces. These functions must be enabled using the URL parameter `controlledAudioDevices` to take effect.
+
+- `controls.setAvailableAudioDevices(devices: { id: string, name: string, forEarpiece?: boolean, isEarpiece?: boolean isSpeaker?: boolean, isExternalHeadset?, boolean; }[]): void` Sets the list of available audio outputs. `forEarpiece` is used on iOS only.
+  It flags the device that should be used if the user selects earpiece mode. This should be the main stereo loudspeaker of the device.
+- `controls.onAudioDeviceSelect: ((id: string) => void) | undefined` Callback called whenever the user or application selects a new audio output.
+- `controls.setAudioDevice(id: string): void` Sets the selected audio device in Element Call's menu. This should be used if the OS decides to automatically switch to Bluetooth, for example.
+- `controls.setAudioEnabled(enabled: boolean)` Enables/disables all audio output from the application. Output is enabled by default.
+- `controls.onAudioPlaybackStarted: ((id: string) => void) | undefined`: This will be called the first time we start
+  playing audio in the webview. It can be helpful to do device setup on the native app when the webviews audio is ready.
+  In particular android is using it to setup the output channel so that the call volume can
+  be controlled by the hardware volume rocker.
+
+## Element Call button delegation
+
+Callbacks for buttons in EC that are handled by the native application
+
+- `showNativeAudioDevicePicker: (() => void) | undefined`. Callback called whenever the user presses the output button in the settings menu.
+  This button is only shown on iOS. (`/iPad|iPhone|iPod|Mac/.test(navigator.userAgent)`)
+- `onBackButtonPressed: (() => void) | undefined`. Callback when the webview detects a tab on the header's back button.

docs/self-hosting.md

@@ -64,7 +64,7 @@ rc_delayed_event_mgmt:
 ```
 
 As a prerequisite for the
-[Matrix LiveKit JWT auth service](https://github.com/element-hq/lk-jwt-service)
+[MatrixRTC Authorization Service](https://github.com/element-hq/lk-jwt-service)
 make sure that your Synapse server has either a `federation` or `openid`
 [listener configured](https://element-hq.github.io/synapse/latest/usage/configuration/config_documentation.html#listeners).
 
@@ -77,7 +77,7 @@ required for each site deployment.
 
 As depicted above in the `example.com` site deployment, Element Call requires a
 [Livekit SFU](https://github.com/livekit/livekit) alongside a
-[Matrix Livekit JWT auth service](https://github.com/element-hq/lk-jwt-service)
+[MatrixRTC Authorization Service](https://github.com/element-hq/lk-jwt-service)
 to implement
 [MSC4195: MatrixRTC using LiveKit backend](https://github.com/hughns/matrix-spec-proposals/blob/hughns/matrixrtc-livekit/proposals/4195-matrixrtc-livekit.md).
 
@@ -89,7 +89,7 @@ the example above, this results in:
 | Service | Endpoint | Example |
 | -------- | ------- | ------- |
 | [Livekit SFU](https://github.com/livekit/livekit) WebSocket signalling connection | `/livekit/sfu` | `matrix-rtc.example.com/livekit/sfu` |
-| [Matrix Livekit JWT auth service](https://github.com/element-hq/lk-jwt-service) | `/livekit/jwt` | `matrix-rtc.example.com/livekit/jwt` |
+| [MatrixRTC Authorization Service](https://github.com/element-hq/lk-jwt-service) | `/livekit/jwt` | `matrix-rtc.example.com/livekit/jwt` |
 
 Using Nginx, you can achieve this by:
 
@@ -102,7 +102,7 @@ server {
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
       proxy_set_header X-Forwarded-Proto $scheme;
 
-      # JWT Service running at port 8080
+      # MatrixRTC Authorization Service running at port 8080
       proxy_pass http://localhost:8080/;
     }
 
@@ -126,6 +126,66 @@ server {
 }
 ```
 
+Or Using Caddy, you can achieve this by:
+
+```caddy configuration file
+# Route for lk-jwt-service with livekit/jwt prefix
+@jwt_service path /livekit/jwt/sfu/get /livekit/jwt/healthz
+handle @jwt_service {
+  uri strip_prefix /livekit/jwt
+  reverse_proxy http://[::1]:8080 {
+    header_up Host {host}
+    header_up X-Forwarded-Server {host}
+    header_up X-Real-IP {remote_host}
+    header_up X-Forwarded-For {remote_host}
+  }
+}
+
+# Default route for livekit
+handle {
+  reverse_proxy http://localhost:7880 {
+    header_up Host {host}
+    header_up X-Forwarded-Server {host}
+    header_up X-Real-IP {remote_host}
+    header_up X-Forwarded-For {remote_host}
+  }
+}
+```
+
+Using Haproxy, you can achieve this by:
+
+```
+# Frontend
+    # Match /livekit/sfu/ path
+    acl is_sfu path_beg -i /livekit/sfu/
+    use_backend sfu_backend if is_sfu matrixrtc_domain
+
+    acl is_mxrtc_auth path_beg -i /sfu/get
+    use_backend mxrtc_auth_backend if is_mxrtc_auth matrixrtc_domain
+
+# Backend
+## MatrixRTC backend
+backend sfu_backend
+    server livekit 127.0.0.1:7880
+    http-request set-path %[path,regsub(^/livekit/sfu/,/)]
+    http-request set-header Host %[req.hdr(host)]
+    timeout server 120s
+    # WebSocket support
+    option forwardfor
+    option http-server-close
+    option http-buffer-request
+
+backend mxrtc_auth_backend
+    server sfu 127.0.0.1:8070
+    http-request set-header Host %[req.hdr(host)]
+    timeout server 120s
+    # WebSocket support
+    option forwardfor
+    option http-server-close
+    option http-buffer-request
+
+```
+
 #### MatrixRTC backend announcement
 
 > [!IMPORTANT]
@@ -145,10 +205,6 @@ server {
     {
         "type": "livekit",
         "livekit_service_url": "https://matrix-rtc-2.example.com/livekit/jwt"
-    },
-    {
-        "type": "nextgen_new_foci_type",
-        "props_for_nextgen_foci": "val"
     }
 ]
 ```
@@ -218,7 +274,7 @@ server {
 There are currently two different config files. `.env` holds variables that are
 used at build time, while `public/config.json` holds variables that are used at
 runtime. Documentation and default values for `public/config.json` can be found
-in [ConfigOptions.ts](src/config/ConfigOptions.ts).
+in [ConfigOptions.ts](../src/config/ConfigOptions.ts).
 
 > [!CAUTION]
 > Please note configuring MatrixRTC backend via `config.json` of
@@ -255,12 +311,17 @@ self-hosters and developers working with Element Call.
 
 - [How to resolve stuck MatrixRTC calls](https://sspaeth.de/2025/02/how-to-resolve-stuck-matrixrtc-calls/)
 
-## 🛠️ How-Tos & Tutorials
+## 📝 How-Tos & Tutorials
 
 - [MatrixRTC aka Element-call setup (Geek warning)](https://sspaeth.de/2024/11/sfu/)
 - [MatrixRTC with Synology Container Manager (Docker)](https://ztfr.de/matrixrtc-with-synology-container-manager-docker/)
 - [Encrypted & Scalable Video Calls: How to deploy an Element Call backend with Synapse Using Docker-Compose](https://willlewis.co.uk/blog/posts/deploy-element-call-backend-with-synapse-and-docker-compose/)
 - [Element Call einrichten: Verschlüsselte Videoanrufe mit Element X und Matrix Synapse](https://www.cleveradmin.de/blog/2025/04/matrixrtc-element-call-backend-einrichten/)
+- [MatrixRTC Back-End for Synapse with Docker Compose and Traefik](https://forge.avontech.net/kstro1/matrixrtc-docker-traefik/)
+
+## 🛠️ Tools
+
+- [A Matrix server sanity tester including tests for proper MatrixRTC setup](https://codeberg.org/spaetz/testmatrix)
 
 ## 🤝 Want to Contribute?
 

docs/url-params.md

@@ -46,28 +46,32 @@ possible to support encryption.
 
 These parameters are relevant to both [widget](./embedded-standalone.md) and [standalone](./embedded-standalone.md) modes:
 
-| Name                                                    | Values                                                                                               | Required for widget                                                                               | Required for SPA             | Description                                                                                                                                                                                                                                                                                                                                                                                         |
-| ------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------- | ---------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| `allowIceFallback`                                      | `true` or `false`                                                                                    | No, defaults to `false`                                                                           | No, defaults to `false`      | Allows use of fallback STUN servers for ICE if the user's homeserver doesn’t provide any.                                                                                                                                                                                                                                                                                                           |
-| `analyticsID` (deprecated: use `posthogUserId` instead) | Posthog analytics ID                                                                                 | No                                                                                                | No                           | Available only with user's consent for sharing telemetry in Element Web.                                                                                                                                                                                                                                                                                                                            |
-| `appPrompt`                                             | `true` or `false`                                                                                    | No, defaults to `true`                                                                            | No, defaults to `true`       | Prompts the user to launch the native mobile app upon entering a room, applicable only on Android and iOS, and must be enabled in config.                                                                                                                                                                                                                                                           |
-| `confineToRoom`                                         | `true` or `false`                                                                                    | No, defaults to `false`                                                                           | No, defaults to `false`      | Keeps the user confined to the current call/room.                                                                                                                                                                                                                                                                                                                                                   |
-| `displayName`                                           |                                                                                                      | No                                                                                                | No                           | Display name used for auto-registration.                                                                                                                                                                                                                                                                                                                                                            |
-| `enableE2EE` (deprecated)                               | `true` or `false`                                                                                    | No, defaults to `true`                                                                            | No, defaults to `true`       | Legacy flag to enable end-to-end encryption, not used in the `livekit` branch.                                                                                                                                                                                                                                                                                                                      |
-| `fontScale`                                             | A decimal number such as `0.9`                                                                       | No, defaults to `1.0`                                                                             | No, defaults to `1.0`        | Factor by which to scale the interface's font size.                                                                                                                                                                                                                                                                                                                                                 |
-| `fonts`                                                 |                                                                                                      | No                                                                                                | No                           | Defines the font(s) used by the interface. Multiple font parameters can be specified: `?font=font-one&font=font-two...`.                                                                                                                                                                                                                                                                            |
-| `hideHeader`                                            | `true` or `false`                                                                                    | No, defaults to `false`                                                                           | No, defaults to `false`      | Hides the room header when in a call.                                                                                                                                                                                                                                                                                                                                                               |
-| `hideScreensharing`                                     | `true` or `false`                                                                                    | No, defaults to `false`                                                                           | No, defaults to `false`      | Hides the screen-sharing button.                                                                                                                                                                                                                                                                                                                                                                    |
-| `homeserver`                                            |                                                                                                      | Not applicable                                                                                    | No                           | Homeserver for registering a new (guest) user, configures non-default guest user server when creating a spa link.                                                                                                                                                                                                                                                                                   |
-| `intent`                                                | `start_call` or `join_existing`                                                                      | No, defaults to `start_call`                                                                      | No, defaults to `start_call` | The intent of the user with respect to the call. e.g. if they clicked a Start Call button, this would be `start_call`. If it was a Join Call button, it would be `join_existing`.                                                                                                                                                                                                                   |
-| `lang`                                                  | [BCP 47](https://www.rfc-editor.org/info/bcp47) code                                                 | No                                                                                                | No                           | The language the app should use.                                                                                                                                                                                                                                                                                                                                                                    |
-| `password`                                              |                                                                                                      | No                                                                                                | No                           | E2EE password when using a shared secret. (For individual sender keys in embedded mode this is not required.)                                                                                                                                                                                                                                                                                       |
-| `perParticipantE2EE`                                    | `true` or `false`                                                                                    | No, defaults to `false`                                                                           | No, defaults to `false`      | Enables per participant encryption with Keys exchanged over encrypted matrix room messages.                                                                                                                                                                                                                                                                                                         |
-| `roomId`                                                | [Matrix Room ID](https://spec.matrix.org/v1.12/appendices/#room-ids)                                 | Yes                                                                                               | No                           | Anything about what room we're pointed to should be from useRoomIdentifier which parses the path and resolves alias with respect to the default server name, however roomId is an exception as we need the room ID in embedded widget mode, and not the room alias (or even the via params because we are not trying to join it). This is also not validated, where it is in `useRoomIdentifier()`. |
-| `showControls`                                          | `true` or `false`                                                                                    | No, defaults to `true`                                                                            | No, defaults to `true`       | Displays controls like mute, screen-share, invite, and hangup buttons during a call.                                                                                                                                                                                                                                                                                                                |
-| `skipLobby` (deprecated: use `intent` instead)          | `true` or `false`                                                                                    | No. If `intent` is explicitly `start_call` then defaults to `true`. Otherwise defaults to `false` | No, defaults to `false`      | Skips the lobby to join a call directly, can be combined with preload in widget. When `true` the audio and video inputs will be muted by default. (This means there currently is no way to start without muted video if one wants to skip the lobby. Also not in widget mode.)                                                                                                                      |
-| `theme`                                                 | One of: `light`, `dark`, `light-high-contrast`, `dark-high-contrast`                                 | No, defaults to `dark`                                                                            | No, defaults to `dark`       | UI theme to use.                                                                                                                                                                                                                                                                                                                                                                                    |
-| `viaServers`                                            | Comma separated list of [Matrix Server Names](https://spec.matrix.org/v1.12/appendices/#server-name) | Not applicable                                                                                    | No                           | Homeserver for joining a room, non-empty value required for rooms not on the user’s default homeserver.                                                                                                                                                                                                                                                                                             |
+| Name                                           | Values                                                                                               | Required for widget                                                                               | Required for SPA             | Description                                                                                                                                                                                                                                                                                                                                                                                         |
+| ---------------------------------------------- | ---------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------- | ---------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `intent`                                       | `start_call`, `join_existing`, `start_call_dm`, `join_existing_dm.                                   | No, defaults to `start_call`                                                                      | No, defaults to `start_call` | The intent is a special url parameter that defines the defaults for all the other parameters. In most cases it should be enough to only set the intent to setup element-call.                                                                                                                                                                                                                       |
+| `allowIceFallback`                             | `true` or `false`                                                                                    | No, defaults to `false`                                                                           | No, defaults to `false`      | Allows use of fallback STUN servers for ICE if the user's homeserver doesn’t provide any.                                                                                                                                                                                                                                                                                                           |
+| `posthogUserId`                                | Posthog analytics ID                                                                                 | No                                                                                                | No                           | Available only with user's consent for sharing telemetry in Element Web.                                                                                                                                                                                                                                                                                                                            |
+| `appPrompt`                                    | `true` or `false`                                                                                    | No, defaults to `true`                                                                            | No, defaults to `true`       | Prompts the user to launch the native mobile app upon entering a room, applicable only on Android and iOS, and must be enabled in config.                                                                                                                                                                                                                                                           |
+| `confineToRoom`                                | `true` or `false`                                                                                    | No, defaults to `false`                                                                           | No, defaults to `false`      | Keeps the user confined to the current call/room.                                                                                                                                                                                                                                                                                                                                                   |
+| `displayName`                                  |                                                                                                      | No                                                                                                | No                           | Display name used for auto-registration.                                                                                                                                                                                                                                                                                                                                                            |
+| `enableE2EE` (deprecated)                      | `true` or `false`                                                                                    | No, defaults to `true`                                                                            | No, defaults to `true`       | Legacy flag to enable end-to-end encryption, not used in the `livekit` branch.                                                                                                                                                                                                                                                                                                                      |
+| `fontScale`                                    | A decimal number such as `0.9`                                                                       | No, defaults to `1.0`                                                                             | No, defaults to `1.0`        | Factor by which to scale the interface's font size.                                                                                                                                                                                                                                                                                                                                                 |
+| `fonts`                                        |                                                                                                      | No                                                                                                | No                           | Defines the font(s) used by the interface. Multiple font parameters can be specified: `?font=font-one&font=font-two...`.                                                                                                                                                                                                                                                                            |
+| `header`                                       | `none`, `standard` or `app_bar`                                                                      | No, defaults to `standard`                                                                        | No, defaults to `standard`   | The style of headers to show. `standard` is the default arrangement, `none` hides the header entirely, and `app_bar` produces a header with a back button like you might see in mobile apps. The callback for the back button is `window.controls.onBackButtonPressed`.                                                                                                                             |
+| `hideScreensharing`                            | `true` or `false`                                                                                    | No, defaults to `false`                                                                           | No, defaults to `false`      | Hides the screen-sharing button.                                                                                                                                                                                                                                                                                                                                                                    |
+| `homeserver`                                   |                                                                                                      | Not applicable                                                                                    | No                           | Homeserver for registering a new (guest) user, configures non-default guest user server when creating a spa link.                                                                                                                                                                                                                                                                                   |
+| `lang`                                         | [BCP 47](https://www.rfc-editor.org/info/bcp47) code                                                 | No                                                                                                | No                           | The language the app should use.                                                                                                                                                                                                                                                                                                                                                                    |
+| `password`                                     |                                                                                                      | No                                                                                                | No                           | E2EE password when using a shared secret. (For individual sender keys in embedded mode this is not required.)                                                                                                                                                                                                                                                                                       |
+| `perParticipantE2EE`                           | `true` or `false`                                                                                    | No, defaults to `false`                                                                           | No, defaults to `false`      | Enables per participant encryption with Keys exchanged over encrypted matrix room messages.                                                                                                                                                                                                                                                                                                         |
+| `controlledAudioDevices`                       | `true` or `false`                                                                                    | No, defaults to `false`                                                                           | No, defaults to `false`      | Whether the [global JS controls for audio devices](./controls.md#audio-devices) should be enabled, allowing the list of audio devices to be controlled by the app hosting Element Call.                                                                                                                                                                                                             |
+| `roomId`                                       | [Matrix Room ID](https://spec.matrix.org/v1.12/appendices/#room-ids)                                 | Yes                                                                                               | No                           | Anything about what room we're pointed to should be from useRoomIdentifier which parses the path and resolves alias with respect to the default server name, however roomId is an exception as we need the room ID in embedded widget mode, and not the room alias (or even the via params because we are not trying to join it). This is also not validated, where it is in `useRoomIdentifier()`. |
+| `showControls`                                 | `true` or `false`                                                                                    | No, defaults to `true`                                                                            | No, defaults to `true`       | Displays controls like mute, screen-share, invite, and hangup buttons during a call.                                                                                                                                                                                                                                                                                                                |
+| `skipLobby` (deprecated: use `intent` instead) | `true` or `false`                                                                                    | No. If `intent` is explicitly `start_call` then defaults to `true`. Otherwise defaults to `false` | No, defaults to `false`      | Skips the lobby to join a call directly, can be combined with preload in widget. When `true` the audio and video inputs will be muted by default. (This means there currently is no way to start without muted video if one wants to skip the lobby. Also not in widget mode.)                                                                                                                      |
+| `theme`                                        | One of: `light`, `dark`, `light-high-contrast`, `dark-high-contrast`                                 | No, defaults to `dark`                                                                            | No, defaults to `dark`       | UI theme to use.                                                                                                                                                                                                                                                                                                                                                                                    |
+| `viaServers`                                   | Comma separated list of [Matrix Server Names](https://spec.matrix.org/v1.12/appendices/#server-name) | Not applicable                                                                                    | No                           | Homeserver for joining a room, non-empty value required for rooms not on the user’s default homeserver.                                                                                                                                                                                                                                                                                             |
+| `sendNotificationType`                         | `ring` or `notification`                                                                             | No                                                                                                | No                           | Will send a "ring" or "notification" `m.rtc.notification` event if the user is the first one in the call.                                                                                                                                                                                                                                                                                           |
+| `autoLeaveWhenOthersLeft`                      | `true` or `false`                                                                                    | No, defaults to `false`                                                                           | No, defaults to `false`      | Whether the app should automatically leave the call when there is no one left in the call.                                                                                                                                                                                                                                                                                                          |
+| `waitForCallPickup`                            | `true` or `false`                                                                                    | No, defaults to `false`                                                                           | No, defaults to `false`      | When sending a notification, show UI that the app is awaiting an answer, play a dial tone, and (in widget mode) auto-close the widget once the notification expires.                                                                                                                                                                                                                                |
 
 ### Widget-only parameters
 
@@ -92,6 +96,6 @@ These parameters are only supported in the [embedded](./embedded-standalone.md)
 | -------------------- | -------------------------------------------------------------------------- | -------- | ---------------------------------------------------------------------------------------------------------------------------------- |
 | `posthogApiHost`     | Posthog server URL                                                         | No       | e.g. `https://posthog-element-call.element.io`. Only supported in embedded package. In full package the value from config is used. |
 | `posthogApiKey`      | Posthog project API key                                                    | No       | Only supported in embedded package. In full package the value from config is used.                                                 |
-| `rageshakeSubmitUrl` | Rageshake server URL endpoint                                              | No       | e.g. `https://element.io/bugreports/submit`. In full package the value from config is used.                                        |
+| `rageshakeSubmitUrl` | Rageshake server URL endpoint                                              | No       | e.g. `https://rageshakes.element.io/api/submit`. In full package the value from config is used.                                    |
 | `sentryDsn`          | Sentry [DSN](https://docs.sentry.io/concepts/key-terms/dsn-explainer/)     | No       | In full package the value from config is used.                                                                                     |
 | `sentryEnvironment`  | Sentry [environment](https://docs.sentry.io/concepts/key-terms/key-terms/) | No       | In full package the value from config is used.                                                                                     |

embedded/android/gradle/libs.versions.toml

@@ -2,11 +2,11 @@
 # https://docs.gradle.org/current/userguide/platforms.html#sub::toml-dependencies-format
 
 [versions]
-android_gradle_plugin = "8.10.0"
+android_gradle_plugin = "8.13.2"
 
 [libraries]
 android_gradle_plugin = { module = "com.android.tools.build:gradle", version.ref = "android_gradle_plugin" }
 
 [plugins]
 android_library = { id = "com.android.library", version.ref = "android_gradle_plugin" }
-maven_publish = { id = "com.vanniktech.maven.publish", version = "0.31.0" }
+maven_publish = { id = "com.vanniktech.maven.publish", version = "0.36.0" }

embedded/android/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.14-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.4-all.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

embedded/android/lib/build.gradle.kts

@@ -5,8 +5,6 @@
  * Please see LICENSE files in the repository root for full details.
  */
 
-import com.vanniktech.maven.publish.SonatypeHost
-
 plugins {
     alias(libs.plugins.android.library)
     alias(libs.plugins.maven.publish)
@@ -27,7 +25,7 @@ android {
 }
 
 mavenPublishing {
-    publishToMavenCentral(SonatypeHost.S01, automaticRelease = true)
+    publishToMavenCentral(automaticRelease = true)
 
     signAllPublications()
 

i18next-parser.config.ts

@@ -1,4 +1,6 @@
-export default {
+import type { UserConfig } from "i18next-parser";
+
+const config: UserConfig = {
   keySeparator: ".",
   namespaceSeparator: false,
   contextSeparator: "|",
@@ -26,3 +28,5 @@ export default {
   input: ["src/**/*.{ts,tsx}"],
   sort: true,
 };
+
+export default config;

knip.ts

@@ -1,8 +1,15 @@
-import { KnipConfig } from "knip";
+/*
+Copyright 2025 New Vector Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { type KnipConfig } from "knip";
 
 export default {
   vite: {
-    config: ["vite.config.js", "vite-embedded.config.js"],
+    config: ["vite.config.ts", "vite-embedded.config.ts", "vite-sdk.config.ts"],
   },
   entry: ["src/main.tsx", "i18next-parser.config.ts"],
   ignoreBinaries: [
@@ -27,10 +34,12 @@ export default {
     // then Knip will flag it as a false positive
     // https://github.com/webpro-nl/knip/issues/766
     "@vector-im/compound-web",
-    // We need this so that TypeScript is happy with @livekit/track-processors.
-    // This might be a bug in the LiveKit repo but for now we fix it on the
-    // Element Call side.
-    "@types/dom-mediacapture-transform",
+    // Yarn plugins are allowed to depend on packages provided by the Yarn
+    // runtime. These shouldn't be listed in package.json, because plugins
+    // should work before Yarn even installs dependencies for the first time.
+    // https://yarnpkg.com/advanced/plugin-tutorial#what-does-a-plugin-look-like
+    "@yarnpkg/core",
+    "@yarnpkg/parsers",
     "matrix-widget-api",
   ],
   ignoreExportsUsedInFile: true,

locales/cs/app.json

@@ -61,6 +61,7 @@
     "video": "Video"
   },
   "developer_mode": {
+    "always_show_iphone_earpiece": "Zobrazit možnost sluchátek pro iPhone na všech platformách",
     "crypto_version": "Kryptografická verze: {{version}}",
     "debug_tile_layout_label": "Ladění rozložení dlaždic",
     "device_id": "ID zařízení: {{id}}",
@@ -81,7 +82,7 @@
   "error": {
     "call_is_not_supported": "Volání není podporováno",
     "call_not_found": "Volání nebylo nalezeno",
-    "call_not_found_description": "<0>Zdá se, že tento odkaz nepatří k žádnému existujícímu volání. Zkontrolujte, zda máte správný odkaz, nebo <1>vytvořte nový</1>.</0>",
+    "call_not_found_description": "<0>Zdá se, že tento odkaz nepatří k žádnému existujícímu hovoru. Zkontrolujte, zda máte správný odkaz, nebo<2> vytvořte nový</2>.</0>",
     "connection_lost": "Spojení ztraceno",
     "connection_lost_description": "Hovor byl přerušen.",
     "e2ee_unsupported": "Nekompatibilní prohlížeč",
@@ -104,6 +105,11 @@
     "knock_reject_heading": "Přístup odepřen",
     "reason": "Důvod"
   },
+  "handset": {
+    "overlay_back_button": "Zpět do režimu reproduktoru",
+    "overlay_description": "Funguje pouze při používání aplikace",
+    "overlay_title": "Režim sluchátka"
+  },
   "hangup_button_label": "Ukončit hovor",
   "header_label": "Domov Element Call",
   "header_participants_label": "Účastníci",
@@ -173,8 +179,11 @@
     "devices": {
       "camera": "Fotoaparát",
       "camera_numbered": "Fotoaparát {{n}}",
+      "change_device_button": "Změnit zvukové zařízení",
       "default": "Výchozí",
       "default_named": "Výchozí <2> ({{name}}) </2>",
+      "handset": "Sluchátko",
+      "loudspeaker": "Reproduktor",
       "microphone": "Mikrofon",
       "microphone_numbered": "Mikrofon {{n}}",
       "speaker": "Reproduktor",

locales/da/app.json

@@ -61,6 +61,7 @@
     "video": "Video"
   },
   "developer_mode": {
+    "always_show_iphone_earpiece": "Vis mulighed for iPhone-høretelefon på alle platforme",
     "crypto_version": "Krypto-version: {{version}}",
     "debug_tile_layout_label": "Fejlfinding af fliselayout",
     "device_id": "Enheds-id: {{id}}",
@@ -70,6 +71,7 @@
     "livekit_server_info": "LiveKit Serverinfo",
     "livekit_sfu": "LiveKit SFU: {{url}}",
     "matrix_id": "Matrix ID: {{id}}",
+    "mute_all_audio": "Slå al lyd fra (deltagere, reaktioner, deltagelseslyde)",
     "show_connection_stats": "Vis forbindelsesstatistik",
     "show_non_member_tiles": "Vis fliser for medier fra ikke-medlemmer",
     "url_params": "URL-parametre",
@@ -80,7 +82,7 @@
   "error": {
     "call_is_not_supported": "Opkald er ikke understøttet",
     "call_not_found": "Opkald ikke fundet",
-    "call_not_found_description": "<0>Det link ser ikke ud til at høre til et eksisterende opkald. Tjek at du har det rigtige link, eller<1> opret et nyt</1>.</0>",
+    "call_not_found_description": "<0>Det link ser ikke ud til at høre til et eksisterende opkald. Tjek at du har det rigtige link, eller <2> opret et nyt</2>.</0>",
     "connection_lost": "Forbindelsen gik tabt",
     "connection_lost_description": "Du blev afbrudt fra opkaldet.",
     "e2ee_unsupported": "Inkompatibel browser",
@@ -92,6 +94,8 @@
     "matrix_rtc_focus_missing": "Serveren er ikke konfigureret til at arbejde med {{brand}}{{domain}}. Kontakt venligst din serveradministrator (domæne:{{domain}}, fejlkode: {{ errorCode }}).",
     "open_elsewhere": "Åbnet i en anden fane",
     "open_elsewhere_description": "{{brand}} er blevet åbnet i en anden fane. Hvis det ikke lyder rigtigt, kan du prøve at genindlæse siden.",
+    "room_creation_restricted": "Kunne ikke oprette opkald",
+    "room_creation_restricted_description": "Oprettelse af opkald er muligvis begrænset til autoriserede brugere. Prøv igen senere, eller kontakt din serveradministrator, hvis problemet fortsætter.",
     "unexpected_ec_error": "Der opstod en uventet fejl (<0>Fejlkode:</0> <1> {{ errorCode }}</1>). Kontakt venligst din serveradministrator."
   },
   "group_call_loader": {
@@ -103,6 +107,11 @@
     "knock_reject_heading": "Adgang nægtet",
     "reason": "Årsag: {{reason}}"
   },
+  "handset": {
+    "overlay_back_button": "Tilbage til højttalertilstand",
+    "overlay_description": "Virker kun, når du bruger appen",
+    "overlay_title": "Telefon-højtaler"
+  },
   "hangup_button_label": "Afslut opkald",
   "header_label": "Element Ring hjem",
   "header_participants_label": "Deltagere",
@@ -164,12 +173,18 @@
       "effect_volume_description": "Juster den lydstyrke som reaktioner og håndsoprækninger afspilles med.",
       "effect_volume_label": "Lydstyrke for lydeffekter"
     },
+    "background_blur_header": "Baggrund",
+    "background_blur_label": "Gør videoens baggrund sløret",
+    "blur_not_supported_by_browser": "(Baggrundssløring understøttes ikke af denne enhed.)",
     "developer_tab_title": "Udvikler",
     "devices": {
       "camera": "Kamera",
       "camera_numbered": "Kamera {{n}}",
+      "change_device_button": "Skift lydenhed",
       "default": "Standard",
       "default_named": "Standard <2>({{name}})</2>",
+      "handset": "Telefon",
+      "loudspeaker": "Højttaler",
       "microphone": "Mikrofon",
       "microphone_numbered": "Mikrofon {{n}}",
       "speaker": "Højttaler",

locales/de/app.json

@@ -55,6 +55,7 @@
     "profile": "Profil",
     "reaction": "Reaktion",
     "reactions": "Reaktionen",
+    "reconnecting": "Verbindung wird wiederhergestellt...",
     "settings": "Einstellungen",
     "unencrypted": "Nicht verschlüsselt",
     "username": "Benutzername",
@@ -82,7 +83,7 @@
   "error": {
     "call_is_not_supported": "Anrufe werden nicht unterstützt",
     "call_not_found": "Anruf nicht gefunden",
-    "call_not_found_description": "<0>Dieser Link scheint zu keinem bestehenden Anruf zu gehören. Vergewissern Sie sich, dass Sie den richtigen Link haben, oder <1> erstellen Sie einen neuen</1>. </0>",
+    "call_not_found_description": "<0>Dieser Link scheint zu keinem bestehenden Anruf zu gehören. Es sollte geprüft werden, ob der Link korrekt ist, oder <2>ein neuer erstellt werden</2>.</0>",
     "connection_lost": "Verbindung verloren",
     "connection_lost_description": "Ihre Verbindung zum Anruf wurde unterbrochen.",
     "e2ee_unsupported": "Inkompatibler Browser",
@@ -94,6 +95,8 @@
     "matrix_rtc_focus_missing": "Der Server ist nicht für die Verwendung mit {{brand}} konfiguriert. Bitte den Serveradministrator kontaktieren (Domain: {{domain}}, Fehlercode: {{ errorCode }}).",
     "open_elsewhere": "In einem anderen Tab geöffnet",
     "open_elsewhere_description": "{{brand}} wurde in einem anderen Tab geöffnet. Wenn das nicht richtig klingt, versuchen Sie, die Seite neu zu laden.",
+    "room_creation_restricted": "Anruf konnte nicht erstellt werden",
+    "room_creation_restricted_description": "Das Erstellen von Anrufen ist nur für autorisierte Nutzer möglich. Versuche es später erneut oder kontaktiere deinen Serveradministrator, falls das Problem weiterhin besteht.",
     "unexpected_ec_error": "Ein unerwarteter Fehler ist aufgetreten (<0>Fehlercode: </0> <1>{{ errorCode }}</1>). Bitte den Serveradministrator kontaktieren."
   },
   "group_call_loader": {
@@ -105,6 +108,11 @@
     "knock_reject_heading": "Zugriff verweigert",
     "reason": "Grund: {{reason}}"
   },
+  "handset": {
+    "overlay_back_button": "Zurück zum Lautsprechermodus",
+    "overlay_description": "Nur wenn App im Vordergrund nutzbar",
+    "overlay_title": "Ohrhörer Modus"
+  },
   "hangup_button_label": "Anruf beenden",
   "header_label": "Element Call-Startseite",
   "header_participants_label": "Teilnehmende",
@@ -173,9 +181,11 @@
     "devices": {
       "camera": "Kamera",
       "camera_numbered": "Kamera {{n}}",
+      "change_device_button": "Audiogerät wechseln",
       "default": "Standard",
       "default_named": "Standard<2> ({{name}} )</2>",
-      "earpiece": "Ohrhörer",
+      "handset": "Ohrhörer",
+      "loudspeaker": "Lautsprecher",
       "microphone": "Mikrofon",
       "microphone_numbered": "Mikrofon{{n}}",
       "speaker": "Lautsprecher",

locales/en/app.json

@@ -55,6 +55,7 @@
     "profile": "Profile",
     "reaction": "Reaction",
     "reactions": "Reactions",
+    "reconnecting": "Reconnecting…",
     "settings": "Settings",
     "unencrypted": "Not encrypted",
     "username": "Username",
@@ -63,6 +64,14 @@
   "developer_mode": {
     "always_show_iphone_earpiece": "Show iPhone earpiece option on all platforms",
     "crypto_version": "Crypto version: {{version}}",
+    "custom_livekit_url": {
+      "current_url": "Currently set to: ",
+      "from_config": "Currently, no overwrite is set. Url from well-known or config is used.",
+      "label": "Custom Livekit-url",
+      "reset": "Reset overwrite",
+      "save": "Save",
+      "saving": "Saving..."
+    },
     "debug_tile_layout_label": "Debug tile layout",
     "device_id": "Device ID: {{id}}",
     "duplicate_tiles_label": "Number of additional tile copies per participant",
@@ -71,29 +80,47 @@
     "livekit_server_info": "LiveKit Server Info",
     "livekit_sfu": "LiveKit SFU: {{url}}",
     "matrix_id": "Matrix ID: {{id}}",
+    "matrixRTCMode": {
+      "Comptibility": {
+        "description": "Compatible with homeservers that do not support sticky events (but all other EC clients are v0.17.0 or later)",
+        "label": "Compatibility: state events & multi SFU"
+      },
+      "Legacy": {
+        "description": "Compatible with old versions of EC that do not support multi SFU",
+        "label": "Legacy: state events & oldest membership SFU"
+      },
+      "Matrix_2_0": {
+        "description": "Compatible only with homservers supporting sticky events and all EC clients v0.17.0 or later",
+        "label": "Matrix 2.0: sticky events & multi SFU"
+      },
+      "title": "MatrixRTC mode"
+    },
     "mute_all_audio": "Mute all audio (participants, reactions, join sounds)",
     "show_connection_stats": "Show connection statistics",
-    "show_non_member_tiles": "Show tiles for non-member media",
-    "url_params": "URL parameters",
-    "use_new_membership_manager": "Use the new implementation of the call MembershipManager",
-    "use_to_device_key_transport": "Use to device key transport. This will fallback to room key transport when another call member sent a room key"
+    "url_params": "URL parameters"
   },
   "disconnected_banner": "Connectivity to the server has been lost.",
   "error": {
     "call_is_not_supported": "Call is not supported",
     "call_not_found": "Call not found",
-    "call_not_found_description": "<0>That link doesn't appear to belong to any existing call. Check that you have the right link, or <1>create a new one</1>.</0>",
+    "call_not_found_description": "<0>That link doesn't appear to belong to any existing call. Check that you have the right link, or <2>create a new one</2>.</0>",
     "connection_lost": "Connection lost",
     "connection_lost_description": "You were disconnected from the call.",
     "e2ee_unsupported": "Incompatible browser",
     "e2ee_unsupported_description": "Your web browser does not support encrypted calls. Supported browsers include Chrome, Safari, and Firefox 117+.",
+    "failed_to_start_livekit": "Failed to start Livekit connection",
     "generic": "Something went wrong",
     "generic_description": "Submitting debug logs will help us track down the problem.",
     "insufficient_capacity": "Insufficient capacity",
     "insufficient_capacity_description": "The server has reached its maximum capacity and you cannot join the call at this time. Try again later, or contact your server admin if the problem persists.",
-    "matrix_rtc_focus_missing": "The server is not configured to work with {{brand}}. Please contact your server admin (Domain: {{domain}}, Error Code: {{ errorCode }}).",
+    "matrix_rtc_transport_missing": "The server is not configured to work with {{brand}}. Please contact your server admin (Domain: {{domain}}, Error Code: {{ errorCode }}).",
+    "membership_manager": "Membership Manager Error",
+    "membership_manager_description": "The Membership Manager had to shut down. This is caused by many consequtive failed network requests.",
+    "no_matrix_2_authorization_service": "The authorization service for your media server (SFU) is out of date.",
     "open_elsewhere": "Opened in another tab",
     "open_elsewhere_description": "{{brand}} has been opened in another tab. If that doesn't sound right, try reloading the page.",
+    "room_creation_restricted": "Failed to create call",
+    "room_creation_restricted_description": "Call creation might be restricted to authorized users only. Try again later, or contact your server admin if the problem persists.",
     "unexpected_ec_error": "An unexpected error occurred (<0>Error Code:</0> <1>{{ errorCode }}</1>). Please contact your server admin."
   },
   "group_call_loader": {
@@ -105,6 +132,11 @@
     "knock_reject_heading": "Access denied",
     "reason": "Reason: {{reason}}"
   },
+  "handset": {
+    "overlay_back_button": "Back to Speaker Mode",
+    "overlay_description": "Only works while using app",
+    "overlay_title": "Handset Mode"
+  },
   "hangup_button_label": "End call",
   "header_label": "Element Call Home",
   "header_participants_label": "Participants",
@@ -173,9 +205,11 @@
     "devices": {
       "camera": "Camera",
       "camera_numbered": "Camera {{n}}",
+      "change_device_button": "Change audio device",
       "default": "Default",
       "default_named": "Default <2>({{name}})</2>",
-      "earpiece": "Earpiece",
+      "handset": "Handset",
+      "loudspeaker": "Loudspeaker",
       "microphone": "Microphone",
       "microphone_numbered": "Microphone {{n}}",
       "speaker": "Speaker",
@@ -215,12 +249,14 @@
   "version": "{{productName}} version: {{version}}",
   "video_tile": {
     "always_show": "Always show",
+    "call_ended": "Call ended",
+    "calling": "Calling…",
     "camera_starting": "Video loading...",
-    "change_fit_contain": "Fit to frame",
     "collapse": "Collapse",
     "expand": "Expand",
     "mute_for_me": "Mute for me",
     "muted_for_me": "Muted for me",
+    "screen_share_volume": "Screen share volume",
     "volume": "Volume",
     "waiting_for_media": "Waiting for media..."
   }

locales/et/app.json

@@ -61,6 +61,7 @@
     "video": "Video"
   },
   "developer_mode": {
+    "always_show_iphone_earpiece": "Näita iPhone'i kuulari valikut kõikidel platvormidel",
     "crypto_version": "Krüptoteekide versioon: {{version}}",
     "debug_tile_layout_label": "Meediapaanide paigutus",
     "device_id": "Seadme tunnus: {{id}}",
@@ -81,7 +82,7 @@
   "error": {
     "call_is_not_supported": "Kõne pole toetatud",
     "call_not_found": "Kõnet ei leidu",
-    "call_not_found_description": "<0>See link ei tundu olema seotud ühegi olemasoleva kõnega. Kontrolli, et sul on õige link või <1>loo uus</1>.</0>",
+    "call_not_found_description": "<0>See link ei tundu olema seotud ühegi olemasoleva kõnega. Kontrolli, et sul on õige link või <2>loo uus</2>.</0>",
     "connection_lost": "Ühendus on katkenud",
     "connection_lost_description": "Sinu ühendus selle kõnega on katkenud.",
     "e2ee_unsupported": "Mitteühilduv brauser",
@@ -93,6 +94,8 @@
     "matrix_rtc_focus_missing": "See server pole seadistatud töötama rakendusega {{brand}}. Palun võta ühendust serveri halduriga (domeen: {{domain}}, veakood: {{ errorCode }}).",
     "open_elsewhere": "Avatud teisel vahekaardil",
     "open_elsewhere_description": "{{brand}} on avatud teisel vahekaardil. Kui see ei tundu olema õige, proovi selle lehe uuesti laadimist.",
+    "room_creation_restricted": "Kõne loomine ei õnnestunud",
+    "room_creation_restricted_description": "Kõne loomine võib olla lubatud ainult volitatud kasutajatele. Proovi hiljem uuesti või probleemi püsimisel võta ühendust oma serveri haldajaga.",
     "unexpected_ec_error": "Tekkis ootamatu viga (<0>Veakood:</0> <1>{{ errorCode }}</1>). Palun võta ühendust serveri haldajaga."
   },
   "group_call_loader": {
@@ -104,6 +107,10 @@
     "knock_reject_heading": "Liitumine pole lubatud",
     "reason": "Põhjus"
   },
+  "handset": {
+    "overlay_back_button": "Tagasi esineja vaatesse",
+    "overlay_description": "See toimib vaid rakenduse kasutamise ajal"
+  },
   "hangup_button_label": "Lõpeta kõne",
   "header_label": "Avaleht: Element Call",
   "header_participants_label": "Osalejad",
@@ -172,8 +179,10 @@
     "devices": {
       "camera": "Kaamera",
       "camera_numbered": "Kaamera {{n}}",
+      "change_device_button": "Muuda heliseadet",
       "default": "Vaikimisi",
       "default_named": "Vaikimisi <2>({{name}})</2>",
+      "loudspeaker": "Valjuhääldi",
       "microphone": "Mikrofon",
       "microphone_numbered": "Mikrofon {{n}}",
       "speaker": "Kõlar",

locales/ru/app.json

@@ -61,6 +61,7 @@
     "video": "Видео"
   },
   "developer_mode": {
+    "always_show_iphone_earpiece": "Показать опцию наушников для iPhone на всех платформах",
     "crypto_version": "Версия криптографии: {{version}}",
     "debug_tile_layout_label": "Отладка расположения плиток",
     "device_id": "Идентификатор устройства: {{id}}",
@@ -70,6 +71,7 @@
     "livekit_server_info": "Информация о сервере LiveKit",
     "livekit_sfu": "LiveKit SFU: {{url}}",
     "matrix_id": "Matrix ID: {{id}}",
+    "mute_all_audio": "Отключить все звуки (участников, реакции, звуки присоединения)",
     "show_connection_stats": "Показать статистику подключений",
     "show_non_member_tiles": "Показать плитки для медиафайлов, не являющихся участниками",
     "url_params": "Параметры URL-адреса",
@@ -172,6 +174,7 @@
     "devices": {
       "camera": "Камера",
       "camera_numbered": "Камера {{n}}",
+      "change_device_button": "Изменить аудиоустройство",
       "default": "По умолчанию",
       "default_named": "По умолчанию <2>({{name}})</2>",
       "microphone": "Микрофон",

locales/sk/app.json

@@ -61,6 +61,7 @@
     "video": "Video"
   },
   "developer_mode": {
+    "always_show_iphone_earpiece": "Zobraziť možnosť slúchadla iPhone na všetkých platformách",
     "crypto_version": "Krypto verzia: {{version}}",
     "debug_tile_layout_label": "Ladenie rozloženia dlaždíc",
     "device_id": "ID zariadenia: {{id}}",
@@ -81,7 +82,7 @@
   "error": {
     "call_is_not_supported": "Hovor nie je podporovaný",
     "call_not_found": "Hovor nebol nájdený",
-    "call_not_found_description": "<0>Zdá sa, že tento odkaz nepatrí k žiadnemu existujúcemu hovoru. Skontrolujte, či máte správny odkaz, alebo <1> vytvorte nový</1>. </0>",
+    "call_not_found_description": "<0>Zdá sa, že tento odkaz nepatrí k žiadnemu existujúcemu hovoru. Skontrolujte, či máte správny odkaz, alebo <2>vytvorte nový</2>.</0>",
     "connection_lost": "Strata spojenia",
     "connection_lost_description": "Boli ste odpojení od hovoru.",
     "e2ee_unsupported": "Nekompatibilný prehliadač",
@@ -173,8 +174,10 @@
     "devices": {
       "camera": "Kamera",
       "camera_numbered": "Kamera {{n}}",
+      "change_device_button": "Zmeniť zvukové zariadenie",
       "default": "Predvolené",
       "default_named": "Predvolené <2>({{name}})</2>",
+      "loudspeaker": "Reproduktor",
       "microphone": "Mikrofón",
       "microphone_numbered": "Mikrofón {{n}}",
       "speaker": "Reproduktor",

locales/sv/app.json

@@ -61,6 +61,7 @@
     "video": "Video"
   },
   "developer_mode": {
+    "always_show_iphone_earpiece": "Visa iPhone-hörsnäckealternativ på alla plattformar",
     "crypto_version": "Kryptoversion: {{version}}",
     "debug_tile_layout_label": "Felsök panelarrangemang",
     "device_id": "Enhets-ID: {{id}}",
@@ -70,6 +71,7 @@
     "livekit_server_info": "LiveKit-serverinfo",
     "livekit_sfu": "LiveKit SFU: {{url}}",
     "matrix_id": "Matrix-ID: {{id}}",
+    "mute_all_audio": "Tysta allt ljud (deltagare, reaktioner, anslutningsljud)",
     "show_connection_stats": "Visa anslutningsstatistik",
     "show_non_member_tiles": "Visa paneler för media som inte är medlemmar",
     "url_params": "URL-parametrar",
@@ -80,7 +82,7 @@
   "error": {
     "call_is_not_supported": "Call stöds inte",
     "call_not_found": "Samtal hittades inte",
-    "call_not_found_description": "<0>Den länken verkar inte tillhöra något befintligt samtal. Kontrollera att du har rätt länk, eller <1>skapa en ny</1>.</0>",
+    "call_not_found_description": "<0>Den länken verkar inte tillhöra något befintligt samtal. Kontrollera att du har rätt länk, eller <2>skapa en ny</2>.</0>",
     "connection_lost": "Anslutning förlorad",
     "connection_lost_description": "Du kopplades bort från samtalet.",
     "e2ee_unsupported": "Inkompatibel webbläsare",
@@ -92,6 +94,8 @@
     "matrix_rtc_focus_missing": "Servern är inte konfigurerad för att fungera med {{brand}}. Vänligen kontakta serveradministratören (Domän: {{domain}}, Felkod: {{ errorCode }}).",
     "open_elsewhere": "Öppnades i en annan flik",
     "open_elsewhere_description": "{{brand}} har öppnats i en annan flik. Om det inte låter rätt, pröva att ladda om sidan.",
+    "room_creation_restricted": "Misslyckades att skapa samtal",
+    "room_creation_restricted_description": "Samtalsskapande kan vara begränsat till endast behöriga användare. Försök igen senare eller kontakta serveradministratören om problemet kvarstår.",
     "unexpected_ec_error": "Ett oväntat fel inträffade (<0>Felkod:</0> <1>{{ errorCode }}</1>). Kontakta din serveradministratör."
   },
   "group_call_loader": {
@@ -103,6 +107,11 @@
     "knock_reject_heading": "Inte tillåten att gå med",
     "reason": "Anledning"
   },
+  "handset": {
+    "overlay_back_button": "Tillbaka till högtalarläge",
+    "overlay_description": "Fungerar bara när appen används",
+    "overlay_title": "Telefonläge"
+  },
   "hangup_button_label": "Avsluta samtal",
   "header_label": "Element Call Hem",
   "header_participants_label": "Deltagare",
@@ -164,12 +173,18 @@
       "effect_volume_description": "Justera volymen vid vilken reaktioner och handuppräckningseffekter spelas",
       "effect_volume_label": "Ljudeffektsvolym"
     },
+    "background_blur_header": "Bakgrund",
+    "background_blur_label": "Gör bakgrunden i videon suddig",
+    "blur_not_supported_by_browser": "(Bakgrundssuddighet stöds inte av den här enheten.)",
     "developer_tab_title": "Utvecklare",
     "devices": {
       "camera": "Kamera",
       "camera_numbered": "Kamera {{n}}",
+      "change_device_button": "Byt ljudenhet",
       "default": "Förval",
       "default_named": "Förval <2>({{name}})</2>",
+      "handset": "Telefonlur",
+      "loudspeaker": "Högtalare",
       "microphone": "Mikrofon",
       "microphone_numbered": "Mikrofon {{n}}",
       "speaker": "Högtalare",

package.json

@@ -8,7 +8,14 @@
     "dev:embedded": "vite --config vite-embedded.config.js",
     "build": "yarn build:full",
     "build:full": "NODE_OPTIONS=--max-old-space-size=16384 vite build",
+    "build:full:production": "yarn build:full",
+    "build:full:development": "yarn build:full --mode development",
     "build:embedded": "yarn build:full --config vite-embedded.config.js",
+    "build:embedded:production": "yarn build:embedded",
+    "build:embedded:development": "yarn build:embedded --mode development",
+    "build:sdk:development": "yarn build:sdk --mode development",
+    "build:sdk": "yarn build:full --config vite-sdk.config.js",
+    "build:sdk:production": "yarn build:sdk",
     "serve": "vite preview",
     "prettier:check": "prettier -c .",
     "prettier:format": "prettier -w .",
@@ -22,6 +29,7 @@
     "test": "vitest",
     "test:coverage": "vitest --coverage",
     "backend": "docker-compose -f dev-backend-docker-compose.yml up",
+    "backend-playwright": "docker-compose -f playwright-backend-docker-compose.yml -f playwright-backend-docker-compose.override.yml up",
     "test:playwright": "playwright test",
     "test:playwright:open": "yarn test:playwright --ui",
     "links:enable": "mv .links.disabled.yaml .links.yaml & touch .links.yaml",
@@ -35,25 +43,18 @@
     "@codecov/vite-plugin": "^1.3.0",
     "@fontsource/inconsolata": "^5.1.0",
     "@fontsource/inter": "^5.1.0",
-    "@formatjs/intl-durationformat": "^0.7.0",
+    "@formatjs/intl-durationformat": "^0.10.0",
     "@formatjs/intl-segmenter": "^11.7.3",
     "@livekit/components-core": "^0.12.0",
     "@livekit/components-react": "^2.0.0",
-    "@livekit/protocol": "^1.38.0",
-    "@livekit/track-processors": "^0.5.5",
+    "@livekit/protocol": "^1.42.2",
+    "@livekit/track-processors": "^0.7.1",
     "@mediapipe/tasks-vision": "^0.10.18",
-    "@opentelemetry/api": "^1.4.0",
-    "@opentelemetry/core": "^1.25.1",
-    "@opentelemetry/exporter-trace-otlp-http": "^0.57.0",
-    "@opentelemetry/resources": "^1.25.1",
-    "@opentelemetry/sdk-trace-base": "^1.25.1",
-    "@opentelemetry/sdk-trace-web": "^1.9.1",
-    "@opentelemetry/semantic-conventions": "^1.25.1",
-    "@playwright/test": "^1.52.0",
+    "@playwright/test": "^1.57.0",
     "@radix-ui/react-dialog": "^1.0.4",
     "@radix-ui/react-slider": "^1.1.2",
     "@radix-ui/react-visually-hidden": "^1.0.3",
-    "@react-spring/web": "^9.4.4",
+    "@react-spring/web": "^10.0.0",
     "@sentry/react": "^8.0.0",
     "@sentry/vite-plugin": "^3.0.0",
     "@stylistic/eslint-plugin": "^3.0.0",
@@ -62,48 +63,51 @@
     "@testing-library/react": "^16.0.0",
     "@testing-library/user-event": "^14.5.1",
     "@types/content-type": "^1.1.5",
-    "@types/dom-mediacapture-transform": "^0.1.11",
     "@types/grecaptcha": "^3.0.9",
     "@types/jsdom": "^21.1.7",
     "@types/lodash-es": "^4.17.12",
-    "@types/node": "^22.0.0",
+    "@types/node": "^24.0.0",
     "@types/pako": "^2.0.3",
     "@types/qrcode": "^1.5.5",
-    "@types/react": "^18.3.0",
-    "@types/react-dom": "^18.3.0",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
     "@types/sdp-transform": "^2.4.5",
     "@types/uuid": "10",
     "@typescript-eslint/eslint-plugin": "^8.31.0",
     "@typescript-eslint/parser": "^8.31.0",
     "@use-gesture/react": "^10.2.11",
-    "@vector-im/compound-design-tokens": "^3.0.0",
-    "@vector-im/compound-web": "^7.2.0",
+    "@vector-im/compound-design-tokens": "^6.0.0",
+    "@vector-im/compound-web": "^8.0.0",
     "@vitejs/plugin-react": "^4.0.1",
-    "@vitest/coverage-v8": "^3.0.0",
+    "@vitest/coverage-v8": "^4.0.18",
     "babel-plugin-transform-vite-meta-env": "^1.0.3",
     "classnames": "^2.3.1",
+    "copy-to-clipboard": "^3.3.3",
     "eslint": "^8.14.0",
     "eslint-config-google": "^0.14.0",
     "eslint-config-prettier": "^10.0.0",
     "eslint-plugin-deprecate": "^0.8.2",
     "eslint-plugin-import": "^2.26.0",
+    "eslint-plugin-jsdoc": "^61.5.0",
     "eslint-plugin-jsx-a11y": "^6.5.1",
-    "eslint-plugin-matrix-org": "^2.0.0",
+    "eslint-plugin-matrix-org": "2.1.0",
     "eslint-plugin-react": "^7.29.4",
     "eslint-plugin-react-hooks": "^5.0.0",
     "eslint-plugin-rxjs": "^5.0.3",
     "eslint-plugin-unicorn": "^56.0.0",
+    "fetch-mock": "11.1.5",
     "global-jsdom": "^26.0.0",
-    "i18next": "^24.0.0",
+    "i18next": "^25.0.0",
     "i18next-browser-languagedetector": "^8.0.0",
     "i18next-parser": "^9.1.0",
     "jsdom": "^26.0.0",
-    "knip": "^5.27.2",
-    "livekit-client": "^2.11.3",
+    "knip": "^5.86.0",
+    "livekit-client": "^2.13.0",
     "lodash-es": "^4.17.21",
     "loglevel": "^1.9.1",
-    "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#head=develop",
-    "matrix-widget-api": "^1.13.0",
+    "matrix-js-sdk": "matrix-org/matrix-js-sdk#6e3efef0c5f660df47cf00874927dec1c75cc3cf",
+    "matrix-widget-api": "^1.16.1",
+    "node-stdlib-browser": "^1.3.1",
     "normalize.css": "^8.0.1",
     "observable-hooks": "^4.2.3",
     "pako": "^2.0.4",
@@ -112,28 +116,34 @@
     "posthog-js": "1.160.3",
     "prettier": "^3.0.0",
     "qrcode": "^1.5.4",
-    "react": "18",
-    "react-dom": "18",
-    "react-i18next": "^15.0.0",
+    "react": "19",
+    "react-dom": "19",
+    "react-i18next": "^16.0.0 <16.6.0",
     "react-router-dom": "^7.0.0",
-    "react-use-clipboard": "^1.0.7",
     "react-use-measure": "^2.1.1",
     "rxjs": "^7.8.1",
     "sass": "^1.42.1",
     "typescript": "^5.8.3",
     "typescript-eslint-language-service": "^5.0.5",
     "unique-names-generator": "^4.6.0",
+    "uuid": "^13.0.0",
     "vaul": "^1.0.0",
-    "vite": "^6.0.0",
-    "vite-plugin-generate-file": "^0.2.0",
+    "vite": "^7.3.0",
+    "vite-plugin-generate-file": "^0.3.0",
     "vite-plugin-html": "^3.2.2",
+    "vite-plugin-node-stdlib-browser": "^0.2.1",
     "vite-plugin-svgr": "^4.0.0",
-    "vitest": "^3.0.0",
+    "vitest": "^4.0.18",
     "vitest-axe": "^1.0.0-pre.3"
   },
   "resolutions": {
     "@livekit/components-core/rxjs": "^7.8.1",
-    "@livekit/track-processors/@mediapipe/tasks-vision": "^0.10.18"
+    "@livekit/track-processors/@mediapipe/tasks-vision": "^0.10.18",
+    "minimatch": "^10.2.3",
+    "tar": "^7.5.11",
+    "glob": "^10.5.0",
+    "qs": "^6.14.1",
+    "js-yaml": "^4.1.1"
   },
   "packageManager": "yarn@4.7.0"
 }

playwright-backend-docker-compose.override.yml

@@ -2,3 +2,6 @@ services:
   synapse:
     volumes:
       - ./backend/playwright_homeserver.yaml:/data/cfg/homeserver.yaml:Z
+  synapse-1:
+    volumes:
+      - ./backend/playwright_homeserver-othersite.yaml:/data/cfg/homeserver.yaml:Z

playwright.config.ts

@@ -1,5 +1,6 @@
 /*
 Copyright 2025 New Vector Ltd.
+Copyright 2026 Element Creations Ltd.
 
 SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
 Please see LICENSE in the repository root for full details.
@@ -7,6 +8,10 @@ Please see LICENSE in the repository root for full details.
 
 import { defineConfig, devices } from "@playwright/test";
 
+const baseURL = process.env.USE_DOCKER
+  ? "http://localhost:8080"
+  : "https://localhost:3000";
+
 /**
  * See https://playwright.dev/docs/test-configuration.
  */
@@ -25,7 +30,7 @@ export default defineConfig({
   /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
   use: {
     /* Base URL to use in actions like `await page.goto('/')`. */
-    baseURL: "https://localhost:3000",
+    baseURL,
 
     /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
     trace: "on-first-retry",
@@ -34,6 +39,7 @@ export default defineConfig({
   projects: [
     {
       name: "chromium",
+      testIgnore: "**/mobile/**",
       use: {
         ...devices["Desktop Chrome"],
         permissions: [
@@ -52,9 +58,9 @@ export default defineConfig({
         },
       },
     },
-
     {
       name: "firefox",
+      testIgnore: "**/mobile/**",
       use: {
         ...devices["Desktop Firefox"],
         ignoreHTTPSErrors: true,
@@ -66,6 +72,27 @@ export default defineConfig({
         },
       },
     },
+    {
+      name: "mobile",
+      testMatch: "**/mobile/**",
+      use: {
+        ...devices["Pixel 7"],
+        ignoreHTTPSErrors: true,
+        permissions: [
+          "clipboard-write",
+          "clipboard-read",
+          "microphone",
+          "camera",
+        ],
+        launchOptions: {
+          args: [
+            "--use-fake-ui-for-media-stream",
+            "--use-fake-device-for-media-stream",
+            "--mute-audio",
+          ],
+        },
+      },
+    },
 
     // No safari for now, until I find a solution to fix `Not allowed to request resource` due to calling
     // clear http to the homeserver
@@ -73,9 +100,13 @@ export default defineConfig({
 
   /* Run your local dev server before starting the tests */
   webServer: {
-    command: "yarn dev",
-    url: "https://localhost:3000",
+    command: "./scripts/playwright-webserver-command.sh",
+    url: baseURL,
     reuseExistingServer: !process.env.CI,
     ignoreHTTPSErrors: true,
+    gracefulShutdown: {
+      signal: "SIGTERM",
+      timeout: 500,
+    },
   },
 });

playwright/access.spec.ts

@@ -7,6 +7,8 @@ Please see LICENSE in the repository root for full details.
 
 import { expect, test } from "@playwright/test";
 
+import { SpaHelpers } from "./spa-helpers.ts";
+
 test("Sign up a new account, then login, then logout", async ({ browser }) => {
   const userId = `test_user-id_${Date.now()}`;
 
@@ -69,12 +71,7 @@ test("As a guest, create a call, share link and other join", async ({
   // ========
   // ARRANGE: The first user creates a call as guest, join it, then click the invite button to copy the invite link
   // ========
-  await creatorPage.getByTestId("home_callName").click();
-  await creatorPage.getByTestId("home_callName").fill("Welcome");
-  await creatorPage.getByTestId("home_displayName").click();
-  await creatorPage.getByTestId("home_displayName").fill("Inviter");
-  await creatorPage.getByTestId("home_go").click();
-  await expect(creatorPage.locator("video")).toBeVisible();
+  await SpaHelpers.createCall(creatorPage, "Inviter", "Welcome");
 
   // join
   await creatorPage.getByTestId("lobby_joinCall").click();
@@ -82,19 +79,7 @@ test("As a guest, create a call, share link and other join", async ({
   await creatorPage.getByRole("radio", { name: "Spotlight" }).check();
 
   // Get the invite link
-  await creatorPage.getByRole("button", { name: "Invite" }).click();
-  await expect(
-    creatorPage.getByRole("heading", { name: "Invite to this call" }),
-  ).toBeVisible();
-  await expect(creatorPage.getByRole("img", { name: "QR Code" })).toBeVisible();
-  await expect(creatorPage.getByTestId("modal_inviteLink")).toBeVisible();
-  await expect(creatorPage.getByTestId("modal_inviteLink")).toBeVisible();
-  await creatorPage.getByTestId("modal_inviteLink").click();
-
-  const inviteLink = (await creatorPage.evaluate(
-    "navigator.clipboard.readText()",
-  )) as string;
-  expect(inviteLink).toContain("room/#/");
+  const inviteLink = await SpaHelpers.getCallInviteLink(creatorPage);
 
   // ========
   // ACT: The other user use the invite link to join the call as a guest
@@ -103,13 +88,7 @@ test("As a guest, create a call, share link and other join", async ({
     reducedMotion: "reduce",
   });
   const guestPage = await guestInviteeContext.newPage();
-
-  await guestPage.goto(inviteLink);
-  await guestPage.getByTestId("joincall_displayName").fill("Invitee");
-  await expect(guestPage.getByTestId("joincall_joincall")).toBeVisible();
-  await guestPage.getByTestId("joincall_joincall").click();
-  await guestPage.getByTestId("lobby_joinCall").click();
-  await guestPage.getByRole("radio", { name: "Spotlight" }).check();
+  await SpaHelpers.joinCallFromInviteLink(guestPage, inviteLink);
 
   // ========
   // ASSERT: check that there are two members in the call

playwright/create-call.spec.ts

@@ -22,8 +22,8 @@ test("Start a new call then leave and show the feedback screen", async ({
   await expect(page.getByTestId("lobby_joinCall")).toBeVisible();
 
   // Check the button toolbar
-  // await expect(page.getByRole('button', { name: 'Mute microphone' })).toBeVisible();
-  // await expect(page.getByRole('button', { name: 'Stop video' })).toBeVisible();
+  // await expect(page.getByRole('switch', { name: 'Mute microphone' })).toBeVisible();
+  // await expect(page.getByRole('switch', { name: 'Stop video' })).toBeVisible();
   await expect(page.getByRole("button", { name: "Settings" })).toBeVisible();
   await expect(page.getByRole("button", { name: "End call" })).toBeVisible();
 
@@ -40,6 +40,11 @@ test("Start a new call then leave and show the feedback screen", async ({
   // The tooltip with the name should be visible
   await expect(page.getByTestId("name_tag")).toContainText("John Doe");
 
+  // Resize the window to resemble a small mobile phone
+  await page.setViewportSize({ width: 350, height: 660 });
+  // We should still be able to send reactions at this screen size
+  await expect(page.getByRole("button", { name: "Reactions" })).toBeVisible();
+
   // leave the call
   await page.getByTestId("incall_leave").click();
   await expect(page.getByRole("heading")).toContainText(

playwright/errors.spec.ts

@@ -7,6 +7,8 @@ Please see LICENSE in the repository root for full details.
 
 import { expect, test } from "@playwright/test";
 
+import { createJTWToken } from "./fixtures/jwt-token";
+
 test("Should show error screen if fails to get JWT token", async ({ page }) => {
   await page.goto("/");
 
@@ -72,3 +74,61 @@ test("Should automatically retry non fatal JWT errors", async ({
   await hasRetriedPromise;
   await expect(page.getByTestId("video").first()).toBeVisible();
 });
+
+test("Should show error screen if call creation is restricted", async ({
+  page,
+  browserName,
+}) => {
+  test.skip(
+    browserName === "firefox",
+    "The is test is not working on firefox CI environment.",
+  );
+  await page.goto("/");
+
+  // We need the socket connection to fail, but this cannot be done by using the websocket route.
+  // Instead, we will trick the app by returning a bad URL for the SFU that will not be reachable an error out.
+  await page.route(
+    "**/matrix-rtc.m.localhost/livekit/jwt/sfu/get",
+    async (route) =>
+      await route.fulfill({
+        status: 200,
+        contentType: "application/json",
+        body: JSON.stringify({
+          url: "wss://badurltotricktest/livekit/sfu",
+          jwt: createJTWToken("@fake:user", "!fake:room"),
+        }),
+      }),
+  );
+
+  // Then if the socket connection fails, livekit will try to validate the token!
+  // Livekit will not auto_create anymore and will return a 404 error.
+  await page.route(
+    "**/badurltotricktest/livekit/sfu/rtc/validate?**",
+    async (route) =>
+      await route.fulfill({
+        status: 404,
+        contentType: "text/plain",
+        body: "requested room does not exist",
+      }),
+  );
+
+  await page.pause();
+
+  await page.getByTestId("home_callName").click();
+  await page.getByTestId("home_callName").fill("HelloCall");
+  await page.getByTestId("home_displayName").click();
+  await page.getByTestId("home_displayName").fill("John Doe");
+  await page.getByTestId("home_go").click();
+
+  // Join the call
+  await page.getByTestId("lobby_joinCall").click();
+
+  await page.pause();
+  // Should fail
+  await expect(page.getByText("Failed to create call")).toBeVisible();
+  await expect(
+    page.getByText(
+      /Call creation might be restricted to authorized users only/,
+    ),
+  ).toBeVisible();
+});

playwright/fixtures/fixture-mobile-create.ts

@@ -0,0 +1,73 @@
+/*
+Copyright 2025 New Vector Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { type Browser, type Page, test, expect } from "@playwright/test";
+
+export interface MobileCreateFixtures {
+  asMobile: {
+    creatorPage: Page;
+    inviteLink: string;
+  };
+}
+
+export const mobileTest = test.extend<MobileCreateFixtures>({
+  asMobile: async ({ browser }, pUse) => {
+    const fixtures = await createCallAndInvite(browser);
+    await pUse({
+      creatorPage: fixtures.page,
+      inviteLink: fixtures.inviteLink,
+    });
+  },
+});
+
+/**
+ * Create a call and generate an invite link
+ */
+async function createCallAndInvite(
+  browser: Browser,
+): Promise<{ page: Page; inviteLink: string }> {
+  const creatorContext = await browser.newContext({ reducedMotion: "reduce" });
+  const creatorPage = await creatorContext.newPage();
+
+  await creatorPage.goto("/");
+
+  // ========
+  // ARRANGE: The first user creates a call as guest, join it, then click the invite button to copy the invite link
+  // ========
+  await creatorPage.getByTestId("home_callName").click();
+  await creatorPage.getByTestId("home_callName").fill("Welcome");
+  await creatorPage.getByTestId("home_displayName").click();
+  await creatorPage.getByTestId("home_displayName").fill("Inviter");
+  await creatorPage.getByTestId("home_go").click();
+  await expect(creatorPage.locator("video")).toBeVisible();
+
+  await creatorPage
+    .getByRole("button", { name: "Continue in browser" })
+    .click();
+  // join
+  await creatorPage.getByTestId("lobby_joinCall").click();
+
+  // Get the invite link
+  await creatorPage.getByRole("button", { name: "Invite" }).click();
+  await expect(
+    creatorPage.getByRole("heading", { name: "Invite to this call" }),
+  ).toBeVisible();
+  await expect(creatorPage.getByRole("img", { name: "QR Code" })).toBeVisible();
+  await expect(creatorPage.getByTestId("modal_inviteLink")).toBeVisible();
+  await expect(creatorPage.getByTestId("modal_inviteLink")).toBeVisible();
+  await creatorPage.getByTestId("modal_inviteLink").click();
+
+  const inviteLink = (await creatorPage.evaluate(
+    "navigator.clipboard.readText()",
+  )) as string;
+  expect(inviteLink).toContain("room/#/");
+
+  return {
+    page: creatorPage,
+    inviteLink,
+  };
+}

playwright/fixtures/jwt-token.ts

@@ -0,0 +1,22 @@
+/*
+Copyright 2025 New Vector Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+export function createJTWToken(sub: string, room: string): string {
+  return [
+    {}, // header
+    {
+      // payload
+      sub,
+      video: {
+        room,
+      },
+    },
+    {}, // signature
+  ]
+    .map((d) => global.btoa(JSON.stringify(d)))
+    .join(".");
+}

playwright/fixtures/widget-user.ts

@@ -1,5 +1,6 @@
 /*
 Copyright 2025 New Vector Ltd.
+Copyright 2026 Element Creations Ltd.
 
 SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
 Please see LICENSE in the repository root for full details.
@@ -8,9 +9,11 @@ Please see LICENSE in the repository root for full details.
 import { type Page, test, expect, type JSHandle } from "@playwright/test";
 
 import type { MatrixClient } from "matrix-js-sdk";
+import { HOST1, TestHelpers } from "../widget/test-helpers.ts";
 
 export type UserBaseFixture = {
   mxId: string;
+  displayName: string;
   page: Page;
   clientHandle: JSHandle<MatrixClient>;
 };
@@ -22,16 +25,16 @@ export type BaseWidgetSetup = {
 
 export interface MyFixtures {
   asWidget: BaseWidgetSetup;
+  callType: "room" | "dm";
+  addUser: (username: string, host: string) => Promise<UserBaseFixture>;
 }
 
-const PASSWORD = "foobarbaz1!";
-
 // Minimal config.json for the local element-web instance
 const CONFIG_JSON = {
   default_server_config: {
     "m.homeserver": {
-      base_url: "http://synapse.localhost:8008",
-      server_name: "synapse.localhost",
+      base_url: "https://synapse.m.localhost",
+      server_name: "synapse.m.localhost",
     },
   },
 
@@ -59,119 +62,91 @@ const CONFIG_JSON = {
   },
 };
 
-/**
- * Set the Element Call URL in the dev tool settings using `window.mxSettingsStore` via `page.evaluate`.
- * @param page
- */
-async function setDevToolElementCallDevUrl(page: Page): Promise<void> {
-  await page.evaluate(() => {
-    window.mxSettingsStore.setValue(
-      "Developer.elementCallUrl",
-      null,
-      "device",
-      "https://localhost:3000/room",
-    );
-  });
-}
-
 export const widgetTest = test.extend<MyFixtures>({
-  asWidget: async ({ browser, context }, pUse) => {
+  // allow per-test override: `widgetTest.use({ callType: "dm" })`
+  callType: ["room", { option: true }],
+  asWidget: async ({ browser, context, callType }, pUse) => {
     await context.route(`http://localhost:8081/config.json*`, async (route) => {
       await route.fulfill({ json: CONFIG_JSON });
     });
 
-    const userA = `brooks_${Date.now()}`;
-    const userB = `whistler_${Date.now()}`;
+    const brooksDisplayName = `brooks_${Date.now()}`;
+    const whistlerDisplayName = `whistler_${Date.now()}`;
 
-    const user1Context = await browser.newContext({
-      reducedMotion: "reduce",
-    });
-    const ewPage1 = await user1Context.newPage();
-    // Register the first user
-    await ewPage1.goto("http://localhost:8081/#/welcome");
-    await ewPage1.getByRole("link", { name: "Create Account" }).click();
-    await ewPage1.getByRole("textbox", { name: "Username" }).fill(userA);
-    await ewPage1
-      .getByRole("textbox", { name: "Password", exact: true })
-      .fill(PASSWORD);
-    await ewPage1.getByRole("textbox", { name: "Confirm password" }).click();
-    await ewPage1
-      .getByRole("textbox", { name: "Confirm password" })
-      .fill(PASSWORD);
-    await ewPage1.getByRole("button", { name: "Register" }).click();
-    await expect(
-      ewPage1.getByRole("heading", { name: `Welcome ${userA}` }),
-    ).toBeVisible();
-    await setDevToolElementCallDevUrl(ewPage1);
-
-    const brooksClientHandle = await ewPage1.evaluateHandle(() =>
-      window.mxMatrixClientPeg.get(),
-    );
-    const brooksMxId = (await brooksClientHandle.evaluate((cli) => {
-      return cli.getUserId();
-    }, brooksClientHandle))!;
-
-    const user2Context = await browser.newContext({
-      reducedMotion: "reduce",
-    });
-    const ewPage2 = await user2Context.newPage();
-    // Register the second user
-    await ewPage2.goto("http://localhost:8081/#/welcome");
-    await ewPage2.getByRole("link", { name: "Create Account" }).click();
-    await ewPage2.getByRole("textbox", { name: "Username" }).fill(userB);
-    await ewPage2
-      .getByRole("textbox", { name: "Password", exact: true })
-      .fill(PASSWORD);
-    await ewPage2.getByRole("textbox", { name: "Confirm password" }).click();
-    await ewPage2
-      .getByRole("textbox", { name: "Confirm password" })
-      .fill(PASSWORD);
-    await ewPage2.getByRole("button", { name: "Register" }).click();
-    await expect(
-      ewPage2.getByRole("heading", { name: `Welcome ${userB}` }),
-    ).toBeVisible();
-    await setDevToolElementCallDevUrl(ewPage2);
-
-    const whistlerClientHandle = await ewPage2.evaluateHandle(() =>
-      window.mxMatrixClientPeg.get(),
-    );
-    const whistlerMxId = (await whistlerClientHandle.evaluate((cli) => {
-      return cli.getUserId();
-    }, whistlerClientHandle))!;
+    // Register users
+    const {
+      page: ewPage1,
+      clientHandle: brooksClientHandle,
+      mxId: brooksMxId,
+    } = await TestHelpers.registerUser(browser, brooksDisplayName);
+    const {
+      page: ewPage2,
+      clientHandle: whistlerClientHandle,
+      mxId: whistlerMxId,
+    } = await TestHelpers.registerUser(browser, whistlerDisplayName);
 
     // Invite the second user
-    await ewPage1.getByRole("button", { name: "Add room" }).click();
-    await ewPage1.getByText("New room").click();
-    await ewPage1.getByRole("textbox", { name: "Name" }).fill("Welcome Room");
-    await ewPage1.getByRole("button", { name: "Create room" }).click();
-    await expect(ewPage1.getByText("You created this room.")).toBeVisible();
-    await expect(ewPage1.getByText("Encryption enabled")).toBeVisible();
+    if (callType === "room") {
+      await TestHelpers.createRoom("Welcome Room", ewPage1);
 
-    await ewPage1
-      .getByRole("button", { name: "Invite to this room", exact: true })
-      .click();
-    await expect(
-      ewPage1.getByRole("heading", { name: "Invite to Welcome Room" }),
-    ).toBeVisible();
+      await ewPage1
+        .getByRole("button", { name: "Invite to this room", exact: true })
+        .click();
+      await expect(
+        ewPage1.getByRole("heading", { name: "Invite to Welcome Room" }),
+      ).toBeVisible();
 
-    // To get the invite textbox we need to specifically select within the
-    // dialog, since there is another textbox in the background (the message
-    // composer). In theory the composer shouldn't be visible to Playwright at
-    // all because the invite dialog has trapped focus, but the focus trap
-    // doesn't quite work right on Firefox.
-    await ewPage1.getByRole("dialog").getByRole("textbox").fill(whistlerMxId);
-    await ewPage1.getByRole("dialog").getByRole("textbox").click();
-    await ewPage1.getByRole("button", { name: "Invite" }).click();
+      // To get the invite textbox we need to specifically select within the
+      // dialog, since there is another textbox in the background (the message
+      // composer). In theory the composer shouldn't be visible to Playwright at
+      // all because the invite dialog has trapped focus, but the focus trap
+      // doesn't quite work right on Firefox.
+      await ewPage1.getByRole("dialog").getByRole("textbox").fill(whistlerMxId);
+      await ewPage1.getByRole("dialog").getByRole("textbox").click();
+      await ewPage1.getByRole("button", { name: "Invite" }).click();
 
-    // Accept the invite
-    await expect(
-      ewPage2.getByRole("treeitem", { name: "Welcome Room" }),
-    ).toBeVisible();
-    await ewPage2.getByRole("treeitem", { name: "Welcome Room" }).click();
-    await ewPage2.getByRole("button", { name: "Accept" }).click();
-    await expect(
-      ewPage2.getByRole("main").getByRole("heading", { name: "Welcome Room" }),
-    ).toBeVisible();
+      // Accept the invite
+      await expect(
+        ewPage2.getByRole("option", { name: "Welcome Room" }),
+      ).toBeVisible();
+      await ewPage2.getByRole("option", { name: "Welcome Room" }).click();
+      await ewPage2.getByRole("button", { name: "Accept" }).click();
+      await expect(
+        ewPage2
+          .getByRole("main")
+          .getByRole("heading", { name: "Welcome Room" }),
+      ).toBeVisible();
+    } else if (callType === "dm") {
+      await ewPage1
+        .getByRole("navigation", { name: "Room list" })
+        .getByRole("button", { name: "New conversation" })
+        .click();
+
+      await ewPage1.getByRole("menuitem", { name: "Start chat" }).click();
+      await ewPage1.getByRole("textbox", { name: "Search" }).click();
+      await ewPage1.getByRole("textbox", { name: "Search" }).fill(whistlerMxId);
+      await ewPage1.getByRole("button", { name: "Go" }).click();
+
+      // Wait and send the first message to create the DM
+      await expect(
+        ewPage1.getByText(/Send your first message to invite/),
+      ).toBeVisible();
+
+      await ewPage1.locator(".mx_BasicMessageComposer_input > div").click();
+      await ewPage1
+        .getByRole("textbox", { name: "Send a message…" })
+        .fill("Hello!");
+      await ewPage1.getByRole("button", { name: "Send message" }).click();
+
+      await expect(
+        ewPage1.getByText("This is the beginning of your"),
+      ).toBeVisible();
+
+      // Accept the DM invite from brooks
+      // This how playwright record selects the DM invite in the room list
+      await ewPage2.getByRole("option", { name: "Open room" }).click();
+      await ewPage2.getByRole("button", { name: "Start chatting" }).click();
+    }
 
     // Renamed use to pUse, as a workaround for eslint error that was thinking this use was a react use.
     await pUse({
@@ -179,12 +154,40 @@ export const widgetTest = test.extend<MyFixtures>({
         mxId: brooksMxId,
         page: ewPage1,
         clientHandle: brooksClientHandle,
+        displayName: brooksDisplayName,
       },
       whistler: {
         mxId: whistlerMxId,
         page: ewPage2,
         clientHandle: whistlerClientHandle,
+        displayName: whistlerDisplayName,
       },
     });
   },
+
+  /**
+   * Provide a way to add additional users within a test.
+   * The returned user will be registered on the default homeserver, the name will be made unique by appending a timestamp.
+   */
+  addUser: async ({ browser }, use) => {
+    await use(
+      async (
+        username: string,
+        host: string = HOST1,
+      ): Promise<UserBaseFixture> => {
+        const uniqueSuffix = Date.now();
+        const { page, clientHandle, mxId } = await TestHelpers.registerUser(
+          browser,
+          `${username.toLowerCase()}_${uniqueSuffix}`,
+          host,
+        );
+        return {
+          mxId,
+          displayName: username,
+          page,
+          clientHandle,
+        };
+      },
+    );
+  },
 });

playwright/mobile/create-call-mobile.spec.ts

@@ -0,0 +1,123 @@
+/*
+Copyright 2025 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { expect, test } from "@playwright/test";
+
+import { mobileTest } from "../fixtures/fixture-mobile-create.ts";
+
+test("@mobile Start a new call then leave and show the feedback screen", async ({
+  page,
+}) => {
+  await page.goto("/");
+
+  await page.getByTestId("home_callName").click();
+  await page.getByTestId("home_callName").fill("HelloCall");
+  await page.getByTestId("home_displayName").click();
+  await page.getByTestId("home_displayName").fill("John Doe");
+  await page.getByTestId("home_go").click();
+
+  // await page.pause();
+  await expect(page.locator("video")).toBeVisible();
+  await expect(page.getByTestId("lobby_joinCall")).toBeVisible();
+
+  await page.getByRole("button", { name: "Continue in browser" }).click();
+  // Join the call
+  await page.getByTestId("lobby_joinCall").click();
+
+  // Ensure that the call is connected
+  await page
+    .locator("div")
+    .filter({ hasText: /^HelloCall$/ })
+    .click();
+  // Check the number of participants
+  await expect(page.locator("div").filter({ hasText: /^1$/ })).toBeVisible();
+  // The tooltip with the name should be visible
+  await expect(page.getByTestId("name_tag")).toContainText("John Doe");
+
+  // leave the call
+  await page.getByTestId("incall_leave").click();
+  await expect(page.getByRole("heading")).toContainText(
+    "John Doe, your call has ended. How did it go?",
+  );
+  await expect(page.getByRole("main")).toContainText(
+    "Why not finish by setting up a password to keep your account?",
+  );
+
+  await expect(
+    page.getByRole("link", { name: "Not now, return to home screen" }),
+  ).toBeVisible();
+});
+
+mobileTest(
+  "Test earpiece overlay in controlledAudioDevices mode",
+  async ({ asMobile, browser }) => {
+    test.slow(); // Triples the timeout
+    const { creatorPage, inviteLink } = asMobile;
+
+    // ========
+    // ACT: The other user use the invite link to join the call as a guest
+    // ========
+    const guestInviteeContext = await browser.newContext({
+      reducedMotion: "reduce",
+    });
+    const guestPage = await guestInviteeContext.newPage();
+    await guestPage.goto(inviteLink + "&controlledAudioDevices=true");
+
+    await guestPage
+      .getByRole("button", { name: "Continue in browser" })
+      .click();
+
+    await guestPage.getByTestId("joincall_displayName").fill("Invitee");
+    await expect(guestPage.getByTestId("joincall_joincall")).toBeVisible();
+    await guestPage.getByTestId("joincall_joincall").click();
+    await guestPage.getByTestId("lobby_joinCall").click();
+
+    // ========
+    // ASSERT: check that there are two members in the call
+    // ========
+
+    // There should be two participants now
+    await expect(
+      guestPage.getByTestId("roomHeader_participants_count"),
+    ).toContainText("2");
+    expect(await guestPage.getByTestId("videoTile").count()).toBe(2);
+
+    // Same in creator page
+    await expect(
+      creatorPage.getByTestId("roomHeader_participants_count"),
+    ).toContainText("2");
+    expect(await creatorPage.getByTestId("videoTile").count()).toBe(2);
+
+    // TEST: control audio devices from the invitee page
+
+    await guestPage.evaluate(() => {
+      window.controls.setAvailableAudioDevices([
+        { id: "speaker", name: "Speaker", isSpeaker: true },
+        { id: "earpiece", name: "Handset", isEarpiece: true },
+        { id: "headphones", name: "Headphones" },
+      ]);
+    });
+
+    // Open settings to select earpiece
+    await guestPage.getByRole("button", { name: "Settings" }).click();
+    await guestPage.getByText("Handset", { exact: true }).click();
+
+    // dismiss settings
+    await guestPage.locator("#root").getByLabel("Settings").press("Escape");
+
+    await guestPage.pause();
+    await expect(
+      guestPage.getByRole("heading", { name: "Handset Mode" }),
+    ).toBeVisible();
+    await expect(
+      guestPage.getByRole("button", { name: "Back to Speaker Mode" }),
+    ).toBeVisible();
+
+    // Should auto-mute the video when earpiece is selected
+    await expect(guestPage.getByTestId("incall_videomute")).toBeDisabled();
+  },
+);

playwright/reconnect.spec.ts

@@ -0,0 +1,60 @@
+/*
+Copyright 2025 New Vector Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { expect, test } from "@playwright/test";
+
+// Skip test for Firefox, due to page.keyboard.press("Tab") not reliable on headless mode
+test.skip(
+  ({ browserName }) => browserName === "firefox",
+  'This test is not working on firefox, page.keyboard.press("Tab") not reliable in headless mode',
+);
+
+test("can only interact with header and footer while reconnecting", async ({
+  page,
+}) => {
+  await page.goto("/");
+  await page.getByTestId("home_callName").click();
+  await page.getByTestId("home_callName").fill("Test call");
+  await page.getByTestId("home_displayName").click();
+  await page.getByTestId("home_displayName").fill("Test user");
+  // If we do not call fastForward here, we end up with Date.now() returning an actual timestamp
+  // but once we call `await page.clock.fastForward(20000);` later this will reset Date.now() to 0
+  // and we will never get into probablyDisconnected state?
+  await page.clock.fastForward(10);
+  await page.getByTestId("home_go").click();
+
+  await expect(page.locator("video")).toBeVisible();
+  await expect(page.getByTestId("lobby_joinCall")).toBeVisible();
+
+  // Join the call
+  await page.getByTestId("lobby_joinCall").click();
+
+  // The media tile for the local user should become visible
+  await new Promise((resolve) => setTimeout(resolve, 1500));
+  await expect(page.getByTestId("name_tag")).toContainText("Test user");
+
+  // Now disconnect from the internet
+  await page.route("https://synapse.m.localhost/**/*", async (route) => {
+    await new Promise((resolve) => setTimeout(resolve, 10000));
+    await route.continue();
+  });
+  await page.clock.fastForward(20000);
+
+  await expect(
+    page.getByRole("dialog", { name: "Reconnecting…" }),
+  ).toBeVisible();
+
+  // Tab order should jump directly from header to footer, skipping media tiles
+  await page.getByRole("switch", { name: "Mute microphone" }).focus();
+  await expect(
+    page.getByRole("switch", { name: "Mute microphone" }),
+  ).toBeFocused();
+  await page.keyboard.press("Tab");
+  await expect(page.getByRole("switch", { name: "Stop video" })).toBeFocused();
+  // Most critically, we should be able to press the hangup button
+  await page.getByRole("button", { name: "End call" }).click();
+});

playwright/restricted-sfu.spec.ts

@@ -0,0 +1,75 @@
+/*
+Copyright 2025 New Vector Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { expect, test } from "@playwright/test";
+import { sleep } from "matrix-js-sdk/lib/utils.js";
+
+test("Should request JWT token before starting the call", async ({ page }) => {
+  await page.goto("/");
+
+  let sfGetTimestamp = 0;
+  let sendStateEventTimestamp = 0;
+  await page.route(
+    "**/matrix-rtc.m.localhost/livekit/jwt/sfu/get",
+    async (route) => {
+      await sleep(2000); // Simulate very slow request
+      await route.continue();
+      sfGetTimestamp = Date.now();
+    },
+  );
+
+  await page.route(
+    "**/state/org.matrix.msc3401.call.member/**",
+    async (route) => {
+      await route.continue();
+      sendStateEventTimestamp = Date.now();
+    },
+  );
+
+  await page.getByTestId("home_callName").click();
+  await page.getByTestId("home_callName").fill("HelloCall");
+  await page.getByTestId("home_displayName").click();
+  await page.getByTestId("home_displayName").fill("John Doe");
+  await page.getByTestId("home_go").click();
+
+  // Join the call
+  await page.getByTestId("lobby_joinCall").click();
+  await page.waitForTimeout(4000);
+  // Ensure that the call is connected
+  await page
+    .locator("div")
+    .filter({ hasText: /^HelloCall$/ })
+    .click();
+
+  expect(sfGetTimestamp).toBeGreaterThan(0);
+  expect(sendStateEventTimestamp).toBeGreaterThan(0);
+  expect(sfGetTimestamp).toBeLessThan(sendStateEventTimestamp);
+});
+
+test("Error when pre-warming the focus are caught by the ErrorBoundary", async ({
+  page,
+}) => {
+  await page.goto("/");
+
+  await page.route("**/openid/request_token", async (route) => {
+    await route.fulfill({
+      status: 418, // Simulate an error not retryable
+    });
+  });
+
+  await page.getByTestId("home_callName").click();
+  await page.getByTestId("home_callName").fill("HelloCall");
+  await page.getByTestId("home_displayName").click();
+  await page.getByTestId("home_displayName").fill("John Doe");
+  await page.getByTestId("home_go").click();
+
+  // Join the call
+  await page.getByTestId("lobby_joinCall").click();
+
+  // Should fail
+  await expect(page.getByText("Something went wrong")).toBeVisible();
+});

playwright/sfu-reconnect-bug.spec.ts

@@ -0,0 +1,98 @@
+/*
+Copyright 2025 New Vector Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { expect, test } from "@playwright/test";
+
+test("When creator left, avoid reconnect to the same SFU", async ({
+  browser,
+}) => {
+  // Use reduce motion to disable animations that are making the tests a bit flaky
+  const creatorContext = await browser.newContext({ reducedMotion: "reduce" });
+  const creatorPage = await creatorContext.newPage();
+
+  await creatorPage.goto("/");
+
+  // ========
+  // ARRANGE: The first user creates a call as guest, join it, then click the invite button to copy the invite link
+  // ========
+  await creatorPage.getByTestId("home_callName").click();
+  await creatorPage.getByTestId("home_callName").fill("Welcome");
+  await creatorPage.getByTestId("home_displayName").click();
+  await creatorPage.getByTestId("home_displayName").fill("Inviter");
+  await creatorPage.getByTestId("home_go").click();
+  await expect(creatorPage.locator("video")).toBeVisible();
+
+  // join
+  await creatorPage.getByTestId("lobby_joinCall").click();
+  // Spotlight mode to make checking the test visually clearer
+  await creatorPage.getByRole("radio", { name: "Spotlight" }).check();
+
+  // Get the invite link
+  await creatorPage.getByRole("button", { name: "Invite" }).click();
+  await expect(
+    creatorPage.getByRole("heading", { name: "Invite to this call" }),
+  ).toBeVisible();
+  await expect(creatorPage.getByRole("img", { name: "QR Code" })).toBeVisible();
+  await expect(creatorPage.getByTestId("modal_inviteLink")).toBeVisible();
+  await expect(creatorPage.getByTestId("modal_inviteLink")).toBeVisible();
+  await creatorPage.getByTestId("modal_inviteLink").click();
+
+  const inviteLink = (await creatorPage.evaluate(
+    "navigator.clipboard.readText()",
+  )) as string;
+  expect(inviteLink).toContain("room/#/");
+
+  // ========
+  // ACT: The other user use the invite link to join the call as a guest
+  // ========
+  const guestB = await browser.newContext({
+    reducedMotion: "reduce",
+  });
+  const guestBPage = await guestB.newPage();
+
+  await guestBPage.goto(inviteLink);
+  await guestBPage.getByTestId("joincall_displayName").fill("Invitee");
+  await expect(guestBPage.getByTestId("joincall_joincall")).toBeVisible();
+  await guestBPage.getByTestId("joincall_joincall").click();
+  await guestBPage.getByTestId("lobby_joinCall").click();
+  await guestBPage.getByRole("radio", { name: "Spotlight" }).check();
+
+  // ========
+  // ACT: add a third user to the call to reproduce the bug
+  // ========
+  const guestC = await browser.newContext({
+    reducedMotion: "reduce",
+  });
+  const guestCPage = await guestC.newPage();
+  // Track WebSocket connections
+  let wsConnectionCount = 0;
+  await guestCPage.routeWebSocket("**", (ws) => {
+    // For some reason the interception is not working with the **
+    if (ws.url().includes("livekit/sfu/rtc")) {
+      wsConnectionCount++;
+    }
+    ws.connectToServer();
+  });
+
+  await guestCPage.goto(inviteLink);
+  await guestCPage.getByTestId("joincall_displayName").fill("Invitee");
+  await expect(guestCPage.getByTestId("joincall_joincall")).toBeVisible();
+  await guestCPage.getByTestId("joincall_joincall").click();
+  await guestCPage.getByTestId("lobby_joinCall").click();
+  await guestCPage.getByRole("radio", { name: "Spotlight" }).check();
+
+  await guestCPage.waitForTimeout(1000);
+
+  // ========
+  // the creator leaves the call
+  await creatorPage.getByTestId("incall_leave").click();
+
+  await guestCPage.waitForTimeout(2000);
+  // https://github.com/element-hq/element-call/issues/3344
+  // The app used to request a new jwt token then to reconnect to the SFU
+  expect(wsConnectionCount).toBe(1);
+});

playwright/spa-call-sticky.spec.ts

@@ -0,0 +1,135 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import {
+  expect,
+  type Page,
+  test,
+  type Request,
+  type Browser,
+} from "@playwright/test";
+
+import { SpaHelpers } from "./spa-helpers";
+
+async function setupTwoUserSpaCall(
+  browser: Browser,
+  page: Page,
+  browserName: string,
+): Promise<{ guestPage: Page }> {
+  test.skip(
+    browserName === "firefox",
+    "The is test is not working on firefox CI environment. No mic/audio device inputs so cam/mic are disabled",
+  );
+
+  await page.goto("/");
+
+  let androlHasSentStickyEvent = false;
+
+  await interceptEventSend(
+    page,
+    // This room is not encrypted, so the event is sent in clear
+    "org.matrix.msc4143.rtc.member",
+    (req) => {
+      androlHasSentStickyEvent =
+        androlHasSentStickyEvent || isStickySend(req.url());
+    },
+  );
+
+  await SpaHelpers.createCall(page, "Androl", "HelloCall", true, "2_0");
+
+  const inviteLink = await SpaHelpers.getCallInviteLink(page);
+
+  // Other
+  const guestInviteeContext = await browser.newContext({
+    reducedMotion: "reduce",
+  });
+  const guestPage = await guestInviteeContext.newPage();
+
+  await guestPage.goto("/");
+
+  let pevaraHasSentStickyEvent = false;
+
+  await interceptEventSend(
+    guestPage,
+    // This room is not encrypted, so the event is sent in clear
+    "org.matrix.msc4143.rtc.member",
+    (req) => {
+      pevaraHasSentStickyEvent =
+        pevaraHasSentStickyEvent || isStickySend(req.url());
+    },
+  );
+
+  await SpaHelpers.joinCallFromInviteLink(
+    guestPage,
+    inviteLink,
+    "Pevara",
+    "2_0",
+  );
+  // Assert both sides have sent sticky membership events
+  expect(androlHasSentStickyEvent).toEqual(true);
+  expect(pevaraHasSentStickyEvent).toEqual(true);
+
+  return { guestPage };
+}
+
+test("One to One call using matrix rtc 2.0 aka sticky events", async ({
+  browser,
+  page,
+  browserName,
+}) => {
+  const { guestPage } = await setupTwoUserSpaCall(browser, page, browserName);
+
+  await SpaHelpers.expectVideoTilesCount(page, 2);
+  await SpaHelpers.expectVideoTilesCount(guestPage, 2);
+});
+
+// This issue occurs when a member leave but does not clean up their sticky event.
+// If they rejoin they will use a new stickye key (stickyKey = member.id = UUID())
+// We end up with two memberships with the same user and device id. This previously
+// was a impossible case since that would be the same state event. Now its possible.
+// We need to ALWAYS key by userId, deviceId and member.id. This test checks that.
+test("One to One rejoin after improper leave does not crash EC", async ({
+  browser,
+  page,
+  browserName,
+}) => {
+  const { guestPage } = await setupTwoUserSpaCall(browser, page, browserName);
+
+  await SpaHelpers.expectVideoTilesCount(page, 2);
+  await SpaHelpers.expectVideoTilesCount(guestPage, 2);
+
+  await guestPage.reload();
+  await expect(guestPage.getByTestId("lobby_joinCall")).toBeVisible();
+
+  // Check if rejoining with the same browser context (device) breaks EC.
+  // This has happened on versions that do not consider the member.id as part of the key for a media tile.
+  await guestPage.getByTestId("lobby_joinCall").click();
+
+  // We cannot use the `expectVideoTilesCount` helper here since one of them is expected to show waiting for media
+  await expect(page.getByTestId("videoTile")).toHaveCount(3);
+  await expect(guestPage.getByTestId("videoTile")).toHaveCount(2);
+});
+
+function isStickySend(url: string): boolean {
+  return !!new URL(url).searchParams.get(
+    "org.matrix.msc4354.sticky_duration_ms",
+  );
+}
+
+async function interceptEventSend(
+  page: Page,
+  eventType: string,
+  callback: (request: Request) => void,
+): Promise<void> {
+  await page.route(
+    `**/_matrix/client/v3/rooms/**/send/${eventType}/**`,
+    async (route, req) => {
+      callback(req);
+      return route.continue();
+    },
+  );
+}

playwright/spa-helpers.ts

@@ -0,0 +1,148 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { expect, type Page } from "@playwright/test";
+
+import { type RtcMode } from "./widget/test-helpers.ts";
+
+/**
+ * Create and join a call from the SPA home page.
+ *
+ * @param page - The Playwright page object
+ * @param userName - The display name to use for the call
+ * @param callName - The name of the call to create
+ * @param autoJoin - Whether to automatically join the call after creating it
+ * @param mode - The RTC mode to use for the call
+ */
+async function createCall(
+  page: Page,
+  userName: string,
+  callName: string,
+  autoJoin: boolean = false,
+  mode: RtcMode | undefined = undefined,
+): Promise<void> {
+  await page.getByTestId("home_callName").click();
+  await page.getByTestId("home_callName").fill(callName);
+  await page.getByTestId("home_displayName").click();
+  await page.getByTestId("home_displayName").fill(userName);
+  await page.getByTestId("home_go").click();
+
+  await expect(page.locator("video")).toBeVisible();
+  await expect(page.getByTestId("lobby_joinCall")).toBeVisible();
+
+  if (mode) {
+    await setRtcModeFromSettings(page, mode);
+  }
+
+  if (autoJoin) {
+    // Join the call
+    await page.getByTestId("lobby_joinCall").click();
+  }
+}
+
+/**
+ * Get the invite link for the current call.
+ */
+async function getCallInviteLink(page: Page): Promise<string> {
+  await page.getByRole("button", { name: "Invite" }).click();
+  await expect(
+    page.getByRole("heading", { name: "Invite to this call" }),
+  ).toBeVisible();
+  await expect(page.getByRole("img", { name: "QR Code" })).toBeVisible();
+  await expect(page.getByTestId("modal_inviteLink")).toBeVisible();
+  await expect(page.getByTestId("modal_inviteLink")).toBeVisible();
+  await page.getByTestId("modal_inviteLink").click();
+
+  const inviteLink = (await page.evaluate(
+    "navigator.clipboard.readText()",
+  )) as string;
+  expect(inviteLink).toContain("room/#/");
+
+  return inviteLink;
+}
+
+/**
+ * Join a call from an invitation link.
+ * @param page - The Playwright page object
+ * @param inviteLink - The invite link to join
+ * @param displayName - The display name to use when joining the call
+ * @param mode - The RTC mode to use for the call
+ */
+async function joinCallFromInviteLink(
+  page: Page,
+  inviteLink: string,
+  displayName: string = "Invitee",
+  mode: RtcMode | undefined = undefined,
+): Promise<void> {
+  await page.goto(inviteLink);
+  await page.getByTestId("joincall_displayName").fill(displayName);
+  await expect(page.getByTestId("joincall_joincall")).toBeVisible();
+  await page.getByTestId("joincall_joincall").click();
+
+  if (mode) {
+    await setRtcModeFromSettings(page, mode);
+  }
+
+  await page.getByTestId("lobby_joinCall").click();
+  await page.getByRole("radio", { name: "Spotlight" }).check();
+}
+
+async function setRtcModeFromSettings(
+  page: Page,
+  mode: RtcMode,
+): Promise<void> {
+  await page.getByRole("button", { name: "Settings" }).click();
+  await page.getByRole("tab", { name: "Preferences" }).click();
+  await page.getByText("Developer mode", { exact: true }).check(); // Idempotent:  won't uncheck if already checked
+
+  // Move to Developer tab now
+  await page.getByRole("tab", { name: "Developer" }).click();
+  if (mode == "legacy") {
+    await page.getByText("Legacy: state events").click();
+  } else if (mode == "2_0") {
+    await page.getByText("Matrix 2.0").click();
+  } else {
+    // compat
+    await page.getByText("Compatibility: state events").click();
+  }
+
+  await page.getByTestId("modal_close").click();
+}
+
+/**
+ * Expect a certain number of video tiles to be present and visible.
+ */
+async function expectVideoTilesCount(page: Page, count: number): Promise<void> {
+  await expect(page.getByTestId("videoTile")).toHaveCount(2);
+
+  // There are no other options than to wait for all media to be ready?
+  // Or it is too flaky :/
+  await page.waitForTimeout(3000);
+  // No one should be waiting for media
+  await expect(page.getByText("Waiting for media...")).not.toBeVisible();
+
+  // There should be 5 video elements, visible and autoplaying
+  const videoElements = await page.locator("video").all();
+  expect(videoElements.length).toBe(count);
+
+  const blockDisplayCount = await page
+    .locator("video")
+    .evaluateAll(
+      (videos: Element[]) =>
+        videos.filter(
+          (v: Element) => window.getComputedStyle(v).display === "block",
+        ).length,
+    );
+  expect(blockDisplayCount).toBe(count);
+}
+
+export const SpaHelpers = {
+  createCall,
+  getCallInviteLink,
+  joinCallFromInviteLink,
+  expectVideoTilesCount,
+};

playwright/widget/federated-call.test.ts

@@ -0,0 +1,86 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { expect, test } from "@playwright/test";
+
+import { widgetTest } from "../fixtures/widget-user";
+import { HOST1, HOST2, type RtcMode, TestHelpers } from "./test-helpers";
+
+const modePairs: [RtcMode, RtcMode][] = [
+  ["compat", "compat"],
+  ["legacy", "legacy"],
+  ["legacy", "compat"],
+  ["compat", "legacy"],
+];
+
+modePairs.forEach(([rtcMode1, rtcMode2]) => {
+  widgetTest(
+    `Test federated call with rtc modes ${rtcMode1} and ${rtcMode2}`,
+    async ({ addUser, browserName }) => {
+      test.skip(
+        browserName === "firefox",
+        "The is test is not working on firefox CI environment. No mic/audio device inputs so cam/mic are disabled",
+      );
+
+      const florian = await addUser("floriant", HOST1);
+      const timo = await addUser("timo", HOST2);
+
+      const roomName = "Call Room";
+
+      await TestHelpers.createRoom(roomName, florian.page, [timo.mxId]);
+
+      await TestHelpers.acceptRoomInvite(roomName, timo.page);
+
+      await florian.page.pause();
+
+      await TestHelpers.openWidgetSetEmbeddedElementCallRtcModeCloseWidget(
+        florian.page,
+        rtcMode1,
+      );
+      await TestHelpers.openWidgetSetEmbeddedElementCallRtcModeCloseWidget(
+        timo.page,
+        rtcMode2,
+      );
+
+      await TestHelpers.startCallInCurrentRoom(florian.page, false);
+      await TestHelpers.joinCallFromLobby(florian.page);
+
+      // timo joins
+      await TestHelpers.joinCallInCurrentRoom(timo.page);
+
+      // We should see 2 video tiles everywhere now
+      for (const user of [timo, florian]) {
+        const frame = user.page
+          .locator('iframe[title="Element Call"]')
+          .contentFrame();
+        await expect(frame.getByTestId("videoTile")).toHaveCount(2);
+
+        // There are no other options than to wait for all media to be ready?
+        // Or it is too flaky :/
+        await user.page.waitForTimeout(3000);
+        // No one should be waiting for media
+        await expect(frame.getByText("Waiting for media...")).not.toBeVisible();
+
+        // There should be 2 video elements, visible and autoplaying
+        const videoElements = await frame.locator("video").all();
+        expect(videoElements.length).toBe(2);
+
+        const blockDisplayCount = await frame
+          .locator("video")
+          .evaluateAll(
+            (videos: Element[]) =>
+              videos.filter(
+                (v: Element) => window.getComputedStyle(v).display === "block",
+              ).length,
+          );
+        expect(blockDisplayCount).toBe(2);
+      }
+
+      // await florian.page.pause();
+    },
+  );
+});

playwright/widget/hotswap-legacy-compat.test.ts

@@ -0,0 +1,104 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { expect, test } from "@playwright/test";
+
+import { widgetTest } from "../fixtures/widget-user";
+import { HOST1, HOST2, TestHelpers } from "./test-helpers";
+
+// ## Issue
+// This test reproduces an issue with the publisher.
+// When switching local focus, we need to recreate the publisher.
+// This failed because of a dead lock in the old publishers destruction.
+//
+// There are numerus ways to enforece this situation:
+//  - oldest member swap (manually set the oldest member focus and leave with the prev oldest member)
+//    This almost never happens in the real worls since clients will set their preferredFoci list to what the oldest member is.
+//  - switch from oldest member to multi sfu as the NOT the first joiner + the first joiner is on a different sfu than your preferred sfu.
+//
+// This test uses the "switch from oldest member to multi sfu" approach.
+//
+// It is a copy of federated-call.test.ts in the `["legacy", "legacy"]` setup,
+// which once connected will make the second user switch to multi sfu.
+widgetTest(
+  `Test swapping publisher from ${HOST1} to ${HOST2}`,
+  async ({ addUser, browserName }) => {
+    test.skip(
+      browserName === "firefox",
+      "The is test is not working on firefox CI environment. No mic/audio device inputs so cam/mic are disabled",
+    );
+
+    const florian = await addUser("floriant", HOST1);
+    const timo = await addUser("timo", HOST2);
+
+    const roomName = "Call Room";
+
+    await TestHelpers.createRoom(roomName, florian.page, [timo.mxId]);
+
+    await TestHelpers.acceptRoomInvite(roomName, timo.page);
+
+    await florian.page.pause();
+
+    await TestHelpers.openWidgetSetEmbeddedElementCallRtcModeCloseWidget(
+      florian.page,
+      "legacy",
+    );
+    await TestHelpers.openWidgetSetEmbeddedElementCallRtcModeCloseWidget(
+      timo.page,
+      "legacy",
+    );
+
+    await TestHelpers.startCallInCurrentRoom(florian.page, false);
+    await TestHelpers.joinCallFromLobby(florian.page);
+
+    // timo joins
+    await TestHelpers.joinCallInCurrentRoom(timo.page);
+
+    // We should see 2 video tiles everywhere now
+    for (const user of [timo, florian]) {
+      const frame = user.page
+        .locator('iframe[title="Element Call"]')
+        .contentFrame();
+      await expect(frame.getByTestId("videoTile")).toHaveCount(2);
+
+      // There are no other options than to wait for all media to be ready?
+      // Or it is too flaky :/
+      await user.page.waitForTimeout(3000);
+      // No one should be waiting for media
+      await expect(frame.getByText("Waiting for media...")).not.toBeVisible();
+
+      // There should be 2 video elements, visible and autoplaying
+      const videoElements = await frame.locator("video").all();
+      expect(videoElements.length).toBe(2);
+
+      const blockDisplayCount = await frame
+        .locator("video")
+        .evaluateAll(
+          (videos: Element[]) =>
+            videos.filter(
+              (v: Element) => window.getComputedStyle(v).display === "block",
+            ).length,
+        );
+      expect(blockDisplayCount).toBe(2);
+    }
+
+    // now we switch the mode for timo (second joiner on multi-sfu HOST2 but currently HOST1)
+    await TestHelpers.setEmbeddedElementCallRtcMode(timo.page, "compat");
+    await timo.page.waitForTimeout(3000);
+    const blockDisplayCount = await timo.page
+      .locator('iframe[title="Element Call"]')
+      .contentFrame()
+      .locator("video")
+      .evaluateAll(
+        (videos: Element[]) =>
+          videos.filter(
+            (v: Element) => window.getComputedStyle(v).display === "block",
+          ).length,
+      );
+    expect(blockDisplayCount).toBe(2);
+  },
+);

playwright/widget/huddle-call.test.ts

@@ -0,0 +1,135 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { expect, test } from "@playwright/test";
+
+import { widgetTest } from "../fixtures/widget-user.ts";
+import { HOST1, TestHelpers } from "./test-helpers.ts";
+
+widgetTest("Create and join a group call", async ({ addUser, browserName }) => {
+  test.skip(
+    browserName === "firefox",
+    "The is test is not working on firefox CI environment. No mic/audio device inputs so cam/mic are disabled",
+  );
+
+  test.slow(); // We are registering multiple users here, give it more time
+
+  const valere = await addUser("Valere", HOST1);
+  const timo = await addUser("Timo", HOST1);
+  const robin = await addUser("Robin", HOST1);
+  const halfshot = await addUser("Halfshot", HOST1);
+  const florian = await addUser("florian", HOST1);
+
+  const roomName = "Group Call Room";
+  await TestHelpers.createRoom(roomName, valere.page, [
+    timo.mxId,
+    robin.mxId,
+    halfshot.mxId,
+    florian.mxId,
+  ]);
+
+  for (const user of [timo, robin, halfshot, florian]) {
+    // Accept the invite
+    // This isn't super stable to get this as this super generic locator,
+    // but it works for now.
+    await TestHelpers.acceptRoomInvite(roomName, user.page);
+  }
+
+  // Start the call as Valere
+  await TestHelpers.startCallInCurrentRoom(valere.page, false);
+  await expect(
+    valere.page.locator('iframe[title="Element Call"]'),
+  ).toBeVisible();
+
+  await TestHelpers.joinCallFromLobby(valere.page);
+
+  for (const user of [timo, robin, halfshot, florian]) {
+    await TestHelpers.joinCallInCurrentRoom(user.page);
+  }
+
+  for (const user of [timo, robin, halfshot, florian]) {
+    const frame = user.page
+      .locator('iframe[title="Element Call"]')
+      .contentFrame();
+    // No lobby, should start with video on
+    await expect(
+      frame.getByRole("switch", { name: "Stop video", checked: true }),
+    ).toBeVisible();
+  }
+
+  // We should see 5 video tiles everywhere now
+  for (const user of [valere, timo, robin, halfshot, florian]) {
+    const frame = user.page
+      .locator('iframe[title="Element Call"]')
+      .contentFrame();
+    await expect(frame.getByTestId("videoTile")).toHaveCount(5);
+    for (const participant of [valere, timo, robin, halfshot, florian]) {
+      // Check the names are correct
+      await expect(frame.getByText(participant.displayName)).toBeVisible();
+    }
+
+    // There is no other options than to wait for all media to be ready?
+    // Or it is too flaky :/
+    await user.page.waitForTimeout(5000);
+    // No one should be waiting for media
+    await expect(frame.getByText("Waiting for media...")).not.toBeVisible();
+
+    // There should be 5 video elements, visible and autoplaying
+    const videoElements = await frame.locator("video").all();
+    expect(videoElements.length).toBe(5);
+    await expect(frame.locator("video[autoplay]")).toHaveCount(5);
+
+    const blockDisplayCount = await frame
+      .locator("video")
+      .evaluateAll(
+        (videos: Element[]) =>
+          videos.filter(
+            (v: Element) => window.getComputedStyle(v).display === "block",
+          ).length,
+      );
+    expect(blockDisplayCount).toBe(5);
+  }
+
+  // Quickly test muting one participant to see it reflects and that our asserts works
+  const florianFrame = florian.page
+    .locator('iframe[title="Element Call"]')
+    .contentFrame();
+  const florianVideoButton = florianFrame.getByRole("switch", {
+    name: /video/,
+  });
+  await expect(florianVideoButton).toHaveAccessibleName("Stop video");
+  await expect(florianVideoButton).toBeChecked();
+  await florianVideoButton.click();
+  // Now the button should indicate we can start video
+  await expect(florianVideoButton).toHaveAccessibleName("Start video");
+  await expect(florianVideoButton).not.toBeChecked();
+
+  // wait a bit for the state to propagate
+  await valere.page.waitForTimeout(3000);
+  {
+    const frame = valere.page
+      .locator('iframe[title="Element Call"]')
+      .contentFrame();
+
+    const videoElements = await frame.locator("video").all();
+    expect(videoElements.length).toBe(5);
+
+    const blockDisplayCount = await frame
+      .locator("video")
+      .evaluateAll(
+        (videos: Element[]) =>
+          videos.filter(
+            (v: Element) => window.getComputedStyle(v).display === "block",
+          ).length,
+      );
+
+    // out of 5 ONLY 4 are visible (display:block) !!
+    // XXX we need to be better at our HTML markup and accessibility, it would make
+    // this kind of stuff way easier to test if we could look out for aria attributes.
+    expect(blockDisplayCount).toBe(4);
+  }
+});

playwright/widget/pip-call-button-interaction.test.ts

@@ -0,0 +1,73 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { expect, test } from "@playwright/test";
+
+import { widgetTest } from "../fixtures/widget-user.ts";
+import { HOST1, TestHelpers } from "./test-helpers.ts";
+
+widgetTest("Footer interaction in PiP", async ({ addUser, browserName }) => {
+  test.skip(
+    browserName === "firefox",
+    "The is test is not working on firefox CI environment. No mic/audio device inputs so cam/mic are disabled",
+  );
+
+  test.slow();
+
+  const valere = await addUser("Valere", HOST1);
+
+  const callRoom = "CallRoom";
+  await TestHelpers.createRoom("CallRoom", valere.page);
+
+  await TestHelpers.createRoom("OtherRoom", valere.page);
+
+  await TestHelpers.switchToRoomNamed(valere.page, callRoom);
+
+  // Start the call as Valere
+  await TestHelpers.startCallInCurrentRoom(valere.page, false);
+  await expect(
+    valere.page.locator('iframe[title="Element Call"]'),
+  ).toBeVisible();
+
+  await TestHelpers.joinCallFromLobby(valere.page);
+  // wait a bit so that the PIP has rendered
+  await valere.page.waitForTimeout(600);
+
+  // Switch to the other room, the call should go to PIP
+  await TestHelpers.switchToRoomNamed(valere.page, "OtherRoom");
+
+  // We should see the PIP overlay
+  const iFrame = valere.page
+    .locator('iframe[title="Element Call"]')
+    .contentFrame();
+
+  {
+    // Check for a bug where the video had the wrong fit in PIP
+    const audioBtn = iFrame.getByRole("switch", { name: /microphone/ });
+    const videoBtn = iFrame.getByRole("switch", { name: /video/ });
+    await expect(
+      iFrame.getByRole("button", { name: "End call" }),
+    ).toBeVisible();
+    await expect(audioBtn).toBeVisible();
+    await expect(videoBtn).toBeVisible();
+    await expect(audioBtn).toHaveAccessibleName("Mute microphone");
+    await expect(audioBtn).toBeChecked();
+    await expect(videoBtn).toHaveAccessibleName("Stop video");
+    await expect(videoBtn).toBeChecked();
+
+    await videoBtn.click();
+    await audioBtn.click();
+
+    // stop hovering on any of the buttons
+    await iFrame.getByTestId("videoTile").hover();
+
+    await expect(audioBtn).toHaveAccessibleName("Unmute microphone");
+    await expect(audioBtn).not.toBeChecked();
+    await expect(videoBtn).toHaveAccessibleName("Start video");
+    await expect(videoBtn).not.toBeChecked();
+  }
+});

playwright/widget/pip-call.test.ts

@@ -0,0 +1,72 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { expect, test } from "@playwright/test";
+
+import { widgetTest } from "../fixtures/widget-user.ts";
+import { HOST1, TestHelpers } from "./test-helpers.ts";
+
+widgetTest("Put call in PIP", async ({ addUser, browserName }) => {
+  test.skip(
+    browserName === "firefox",
+    "The is test is not working on firefox CI environment. No mic/audio device inputs so cam/mic are disabled",
+  );
+
+  test.slow();
+
+  const valere = await addUser("Valere", HOST1);
+  const timo = await addUser("Timo", HOST1);
+
+  const callRoom = "TeamRoom";
+  await TestHelpers.createRoom(callRoom, valere.page, [timo.mxId]);
+
+  await TestHelpers.createRoom("DoubleTask", valere.page);
+
+  await TestHelpers.acceptRoomInvite(callRoom, timo.page);
+
+  await TestHelpers.switchToRoomNamed(valere.page, callRoom);
+
+  // Start the call as Valere
+  await TestHelpers.startCallInCurrentRoom(valere.page, false);
+  await expect(
+    valere.page.locator('iframe[title="Element Call"]'),
+  ).toBeVisible();
+
+  await TestHelpers.joinCallFromLobby(valere.page);
+
+  await TestHelpers.joinCallInCurrentRoom(timo.page);
+
+  const frame = timo.page
+    .locator('iframe[title="Element Call"]')
+    .contentFrame();
+
+  // check that the video is on
+  await expect(
+    frame.getByRole("switch", { name: "Stop video", checked: true }),
+  ).toBeVisible();
+
+  // Switch to the other room, the call should go to PIP
+  await TestHelpers.switchToRoomNamed(valere.page, "DoubleTask");
+
+  // We should see the PIP overlay
+  await expect(valere.page.getByTestId("widget-pip-container")).toBeVisible();
+
+  {
+    // wait a bit so that the PIP has rendered the video
+    await valere.page.waitForTimeout(600);
+
+    // Check for a bug where the video had the wrong fit in PIP
+    const frame = valere.page
+      .locator('iframe[title="Element Call"]')
+      .contentFrame();
+    const videoElements = await frame.locator("video").all();
+    expect(videoElements.length).toBe(1);
+
+    const pipVideo = videoElements[0];
+    await expect(pipVideo).toHaveCSS("object-fit", "cover");
+  }
+});

playwright/widget/simple-create.spec.ts

@@ -9,11 +9,14 @@ import { expect, test } from "@playwright/test";
 
 import { widgetTest } from "../fixtures/widget-user.ts";
 
+// Skip test, including Fixtures
+widgetTest.skip(
+  ({ browserName }) => browserName === "firefox",
+  "This test is not working on firefox, after hangup brooks is locked in a strange state with a blank widget",
+);
+
 widgetTest("Start a new call as widget", async ({ asWidget, browserName }) => {
-  test.skip(
-    browserName === "firefox",
-    "This test is not working on firefox, after hangup brooks is locked in a strange state with a blank widget",
-  );
+  test.slow(); // Triples the timeout
 
   const { brooks, whistler } = asWidget;
 
@@ -46,7 +49,10 @@ widgetTest("Start a new call as widget", async ({ asWidget, browserName }) => {
 
   // Check the join indicator on the room list
   await expect(
-    brooks.page.locator("div").filter({ hasText: /^Joined • 1$/ }),
+    brooks.page
+      .locator('iframe[title="Element Call"]')
+      .contentFrame()
+      .getByRole("button", { name: "End call" }),
   ).toBeVisible();
 
   // Join from the other side
@@ -56,26 +62,28 @@ widgetTest("Start a new call as widget", async ({ asWidget, browserName }) => {
   ).toBeVisible();
   await whistler.page.getByRole("button", { name: "Join" }).click();
 
-  await expect(
-    whistler.page
-      .locator('iframe[title="Element Call"]')
-      .contentFrame()
-      .getByTestId("lobby_joinCall"),
-  ).toBeVisible();
+  // Currently disabled due to recent Element Web is bypassing Lobby
+  // await expect(
+  //   whistler.page
+  //     .locator('iframe[title="Element Call"]')
+  //     .contentFrame()
+  //     .getByTestId("lobby_joinCall"),
+  // ).toBeVisible();
+  //
+  // await whistler.page
+  //   .locator('iframe[title="Element Call"]')
+  //   .contentFrame()
+  //   .getByTestId("lobby_joinCall")
+  //   .click();
 
-  await whistler.page
-    .locator('iframe[title="Element Call"]')
-    .contentFrame()
-    .getByTestId("lobby_joinCall")
-    .click();
+  // Currrenty disabled due to recent Element Web not indicating the number of participants
+  // await expect(
+  //   whistler.page.locator("div").filter({ hasText: /^Joined • 2$/ }),
+  // ).toBeVisible();
 
-  await expect(
-    whistler.page.locator("div").filter({ hasText: /^Joined • 2$/ }),
-  ).toBeVisible();
-
-  await expect(
-    brooks.page.locator("div").filter({ hasText: /^Joined • 2$/ }),
-  ).toBeVisible();
+  // await expect(
+  //   brooks.page.locator("div").filter({ hasText: /^Joined • 2$/ }),
+  // ).toBeVisible();
 
   // Whistler leaves
   await whistler.page.waitForTimeout(1000);

playwright/widget/test-helpers.ts

@@ -0,0 +1,309 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import {
+  type Browser,
+  expect,
+  type JSHandle,
+  type Page,
+} from "@playwright/test";
+import { type MatrixClient } from "matrix-js-sdk";
+
+const PASSWORD = "foobarbaz1!";
+
+export const HOST1 = "https://app.m.localhost/#/welcome";
+export const HOST2 = "https://app.othersite.m.localhost/#/welcome";
+
+export type RtcMode = "legacy" | "compat" | "2_0";
+
+export class TestHelpers {
+  public static async startCallInCurrentRoom(
+    page: Page,
+    voice: boolean = false,
+  ): Promise<void> {
+    const buttonName = voice ? "Voice call" : "Video call";
+    await expect(page.getByRole("button", { name: buttonName })).toBeVisible();
+    await page.getByRole("button", { name: buttonName }).click();
+
+    await expect(
+      page.getByRole("menuitem", { name: "Element Call" }),
+    ).toBeVisible();
+
+    await page.getByRole("menuitem", { name: "Element Call" }).click();
+  }
+
+  public static async joinCallFromLobby(page: Page): Promise<void> {
+    await expect(
+      page
+        .locator('iframe[title="Element Call"]')
+        .contentFrame()
+        .getByTestId("lobby_joinCall"),
+    ).toBeVisible();
+
+    await page
+      .locator('iframe[title="Element Call"]')
+      .contentFrame()
+      .getByTestId("lobby_joinCall")
+      .click();
+  }
+
+  public static async joinCallInCurrentRoom(
+    page: Page,
+    audioOnly: boolean = false,
+  ): Promise<void> {
+    // This is the header button that notifies about an ongoing call
+    const label = audioOnly ? "Voice call started" : "Video call started";
+    await expect(page.getByText(label)).toBeVisible();
+    await expect(page.getByRole("button", { name: "Join" })).toBeVisible();
+    await page.getByRole("button", { name: "Join" }).click();
+  }
+
+  /**
+   * Registers a new user and returns page, clientHandle and mxId.
+   */
+  public static async registerUser(
+    browser: Browser,
+    username: string,
+    host: string = HOST1,
+  ): Promise<{
+    page: Page;
+    clientHandle: JSHandle<MatrixClient>;
+    mxId: string;
+  }> {
+    const userContext = await browser.newContext({
+      reducedMotion: "reduce",
+    });
+    const page = await userContext.newPage();
+    await page.goto(host);
+    await page.getByRole("link", { name: "Create Account" }).click();
+    await page.getByRole("textbox", { name: "Username" }).fill(username);
+    await page.getByRole("textbox", { name: "Password", exact: true }).click();
+    await page
+      .getByRole("textbox", { name: "Password", exact: true })
+      .fill(PASSWORD);
+    await page.getByRole("textbox", { name: "Confirm password" }).click();
+    await page
+      .getByRole("textbox", { name: "Confirm password" })
+      .fill(PASSWORD);
+    await page.getByRole("button", { name: "Register" }).click();
+
+    await expect(
+      page.getByRole("heading", { name: `Welcome ${username}` }),
+    ).toBeVisible({
+      // Increase timeout as registration can be slow :/
+      timeout: 15_000,
+    });
+
+    await this.maybeDismissBrowserNotSupportedToast(page);
+    await this.maybeDismissServiceWorkerWarningToast(page);
+
+    await TestHelpers.setDevToolElementCallDevUrl(page);
+
+    const clientHandle = await page.evaluateHandle(() =>
+      window.mxMatrixClientPeg.get(),
+    );
+    const mxId = (await clientHandle.evaluate(
+      (cli: MatrixClient) => cli.getUserId(),
+      clientHandle,
+    ))!;
+
+    return { page, clientHandle, mxId };
+  }
+
+  private static async maybeDismissBrowserNotSupportedToast(
+    page: Page,
+  ): Promise<void> {
+    const browserUnsupportedToast = page
+      .getByText("Element does not support this browser")
+      .locator("..")
+      .locator("..");
+
+    // Dismiss incompatible browser toast
+    const dismissButton = browserUnsupportedToast.getByRole("button", {
+      name: "Dismiss",
+    });
+    try {
+      await expect(dismissButton).toBeVisible({ timeout: 700 });
+      await dismissButton.click();
+    } catch {
+      // dismissButton not visible, continue as normal
+    }
+  }
+
+  private static async maybeDismissServiceWorkerWarningToast(
+    page: Page,
+  ): Promise<void> {
+    const toast = page
+      .locator(".mx_Toast_toast")
+      .getByText("Failed to load service worker");
+
+    try {
+      await expect(toast).toBeVisible({ timeout: 700 });
+      await page
+        .locator(".mx_Toast_toast")
+        .getByRole("button", { name: "OK" })
+        .click();
+    } catch {
+      // toast not visible, continue as normal
+    }
+  }
+
+  public static async maybeDismissKeyBackupToast(page: Page): Promise<void> {
+    const toast = page
+      .locator(".mx_Toast_toast")
+      .getByText("Back up your chats");
+
+    try {
+      await expect(toast).toBeVisible({ timeout: 700 });
+      await page
+        .locator(".mx_Toast_toast")
+        .getByRole("button", { name: "Dismiss" })
+        .click();
+    } catch {
+      // toast not visible, continue as normal
+    }
+  }
+
+  public static async createRoom(
+    name: string,
+    page: Page,
+    andInvite: string[] = [],
+  ): Promise<void> {
+    await page
+      .getByRole("navigation", { name: "Room list" })
+      .getByRole("button", { name: "New conversation" })
+      .click();
+
+    await page.getByRole("menuitem", { name: "New Room" }).click();
+    await page.getByRole("textbox", { name: "Name" }).fill(name);
+    await page.getByRole("button", { name: "Create room" }).click();
+    await expect(page.getByText("You created this room.")).toBeVisible();
+    await expect(page.getByText("Encryption enabled")).toBeVisible();
+    await TestHelpers.maybeDismissKeyBackupToast(page);
+
+    // Invite users if any
+    if (andInvite.length > 0) {
+      await page
+        .getByRole("button", { name: "Invite to this room", exact: true })
+        .click();
+
+      const inviteInput = page.getByRole("dialog").getByRole("textbox");
+      for (const mxId of andInvite) {
+        await inviteInput.focus();
+        await inviteInput.fill(mxId);
+        await inviteInput.press("Enter");
+      }
+
+      await page.getByRole("button", { name: "Invite" }).click();
+    }
+  }
+
+  /**
+   * Accepts a room invite using the room name.
+   * Locatest the invite in the room list.
+   *
+   */
+  public static async acceptRoomInvite(
+    roomName: string,
+    page: Page,
+  ): Promise<void> {
+    await expect(page.getByRole("option", { name: roomName })).toBeVisible();
+    await page.getByRole("option", { name: roomName }).click();
+    await page.getByRole("button", { name: "Accept" }).click();
+
+    await expect(
+      page.getByRole("main").getByRole("heading", { name: roomName }),
+    ).toBeVisible();
+    await TestHelpers.maybeDismissKeyBackupToast(page);
+  }
+
+  /**
+   * Opens the widget and then goes to the settings to set the RTC mode.
+   * then closes the widget lobby.
+   *
+   * intended to be used before joining!
+   *
+   * WORKS IF A ROOM IS CURRENTLY OPENED IN THE PAGE
+   */
+  public static async openWidgetSetEmbeddedElementCallRtcModeCloseWidget(
+    page: Page,
+    mode: RtcMode,
+  ): Promise<void> {
+    await page.getByRole("button", { name: "Video call" }).click();
+    await page.getByRole("menuitem", { name: "Element Call" }).click();
+    await TestHelpers.setEmbeddedElementCallRtcMode(page, mode);
+    await page.getByRole("button", { name: "Close lobby" }).click();
+  }
+  /**
+   * Goes to the settings to set the RTC mode.
+   * then closes the settings modal.
+   *
+   * WORKS IF A ROOM IS CURRENTLY SHOWING THE EC WIDGET
+   */
+  public static async setEmbeddedElementCallRtcMode(
+    page: Page,
+    mode: RtcMode,
+  ): Promise<void> {
+    const iframe = page.locator('iframe[title="Element Call"]').contentFrame();
+
+    await iframe.getByRole("button", { name: "Settings" }).click();
+    await iframe.getByRole("tab", { name: "Preferences" }).click();
+
+    // await iframe.getByText("Developer mode", { exact: true }).click();
+    await iframe.getByText("Developer mode", { exact: true }).check(); // Idempotent:  won't uncheck if already checked
+
+    // Move to Developer tab now
+    await iframe.getByRole("tab", { name: "Developer" }).click();
+    if (mode == "legacy") {
+      await iframe.getByText("Legacy: state events").click();
+    } else if (mode == "2_0") {
+      await iframe.getByText("Matrix 2.0").click();
+    } else {
+      // compat
+      await iframe.getByText("Compatibility: state events").click();
+    }
+    await iframe.getByTestId("modal_close").click();
+  }
+
+  /**
+   * Sets the current Element Web app to use the dev Element Call URL.
+   * @param page - The EW page
+   */
+  public static async setDevToolElementCallDevUrl(page: Page): Promise<void> {
+    if (process.env.USE_DOCKER) {
+      await page.evaluate(() => {
+        window.mxSettingsStore.setValue(
+          "Developer.elementCallUrl",
+          null,
+          "device",
+          "https://call.m.localhost/room",
+        );
+      });
+    } else {
+      await page.evaluate(() => {
+        window.mxSettingsStore.setValue(
+          "Developer.elementCallUrl",
+          null,
+          "device",
+          "https://localhost:3000/room",
+        );
+      });
+    }
+  }
+
+  /**
+   * Switches to a room in the room list by its name.
+   * @param page - The EW page
+   * @param roomName - The name of the room to switch to
+   */
+  public static async switchToRoomNamed(
+    page: Page,
+    roomName: string,
+  ): Promise<void> {
+    await page.getByRole("option", { name: `Open room ${roomName}` }).click();
+  }
+}

playwright/widget/voice-call-dm.spec.ts

@@ -0,0 +1,241 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { expect, test } from "@playwright/test";
+
+import { widgetTest } from "../fixtures/widget-user.ts";
+import { TestHelpers } from "./test-helpers.ts";
+
+widgetTest.use({ callType: "dm" });
+
+widgetTest(
+  "Start a new voice call in DM as widget",
+  async ({ asWidget, browserName }) => {
+    test.skip(
+      browserName === "firefox",
+      "The is test is not working on firefox CI environment. No mic/audio device inputs so cam/mic are disabled",
+    );
+
+    test.slow(); // Triples the timeout
+
+    const { brooks, whistler } = asWidget;
+
+    await TestHelpers.startCallInCurrentRoom(brooks.page, true);
+
+    await expect(
+      brooks.page.locator('iframe[title="Element Call"]'),
+    ).toBeVisible();
+
+    const brooksFrame = brooks.page
+      .locator('iframe[title="Element Call"]')
+      .contentFrame();
+
+    // We should show a ringing tile, let's check for that
+    await expect(
+      brooksFrame
+        .getByTestId("videoTile")
+        .filter({ has: brooksFrame.getByText(whistler.displayName) })
+        .filter({ has: brooksFrame.getByText("Calling…") }),
+    ).toBeVisible();
+
+    await expect(whistler.page.getByText("Incoming voice call")).toBeVisible();
+    await whistler.page.getByRole("button", { name: "Accept" }).click();
+
+    await expect(
+      whistler.page.locator('iframe[title="Element Call"]'),
+    ).toBeVisible();
+
+    const whistlerFrame = whistler.page
+      .locator('iframe[title="Element Call"]')
+      .contentFrame();
+
+    // ASSERT the button states for whistler (the callee)
+    // video should be off by default in a voice call
+    await expect(
+      whistlerFrame.getByRole("switch", {
+        name: "Start video",
+        checked: false,
+      }),
+    ).toBeVisible();
+    // audio should be on for the voice call
+    await expect(
+      whistlerFrame.getByRole("switch", {
+        name: "Mute microphone",
+        checked: true,
+      }),
+    ).toBeVisible();
+
+    // ASSERT the button states for brools (the caller)
+    // video should be off by default in a voice call
+    await expect(
+      whistlerFrame.getByRole("switch", {
+        name: "Start video",
+        checked: false,
+      }),
+    ).toBeVisible();
+    // audio should be on for the voice call
+    await expect(
+      whistlerFrame.getByRole("switch", {
+        name: "Mute microphone",
+        checked: true,
+      }),
+    ).toBeVisible();
+
+    // In order to confirm that the call is disconnected we will check that the message composer is shown again.
+    // So first we need to confirm that it is hidden when in the call.
+    await expect(
+      whistler.page.locator(".mx_BasicMessageComposer"),
+    ).not.toBeVisible();
+    await expect(
+      brooks.page.locator(".mx_BasicMessageComposer"),
+    ).not.toBeVisible();
+
+    // ASSERT hanging up on one side ends the call for both
+    await brooksFrame.getByRole("button", { name: "End call" }).click();
+
+    // The widget should be closed on both sides and the timeline should be back on screen
+    await expect(
+      whistler.page.locator(".mx_BasicMessageComposer"),
+    ).toBeVisible();
+    await expect(brooks.page.locator(".mx_BasicMessageComposer")).toBeVisible();
+  },
+);
+
+widgetTest(
+  "Start a new video call in DM as widget",
+  async ({ asWidget, browserName }) => {
+    test.skip(
+      browserName === "firefox",
+      "The is test is not working on firefox CI environment. No mic/audio device inputs so cam/mic are disabled",
+    );
+
+    test.slow(); // Triples the timeout
+
+    const { brooks, whistler } = asWidget;
+
+    await TestHelpers.startCallInCurrentRoom(brooks.page, false);
+
+    await expect(
+      brooks.page.locator('iframe[title="Element Call"]'),
+    ).toBeVisible();
+
+    const brooksFrame = brooks.page
+      .locator('iframe[title="Element Call"]')
+      .contentFrame();
+
+    // We should show a ringing tile, let's check for that
+    await expect(
+      brooksFrame
+        .getByTestId("videoTile")
+        .filter({ has: brooksFrame.getByText(whistler.displayName) })
+        .filter({ has: brooksFrame.getByText("Calling…") }),
+    ).toBeVisible();
+
+    await expect(whistler.page.getByText("Incoming video call")).toBeVisible();
+    await whistler.page.getByRole("button", { name: "Accept" }).click();
+
+    await expect(
+      whistler.page.locator('iframe[title="Element Call"]'),
+    ).toBeVisible();
+
+    const whistlerFrame = whistler.page
+      .locator('iframe[title="Element Call"]')
+      .contentFrame();
+
+    // ASSERT the button states for whistler (the callee)
+    // video should be off by default in a video call
+    await expect(
+      whistlerFrame.getByRole("switch", { name: "Stop video", checked: true }),
+    ).toBeVisible();
+    // audio should be on too
+    await expect(
+      whistlerFrame.getByRole("switch", {
+        name: "Mute microphone",
+        checked: true,
+      }),
+    ).toBeVisible();
+
+    // ASSERT the button states for brools (the caller)
+    // video should be off by default in a video call
+    await expect(
+      whistlerFrame.getByRole("switch", { name: "Stop video", checked: true }),
+    ).toBeVisible();
+    // audio should be on too
+    await expect(
+      whistlerFrame.getByRole("switch", {
+        name: "Mute microphone",
+        checked: true,
+      }),
+    ).toBeVisible();
+
+    // In order to confirm that the call is disconnected we will check that the message composer is shown again.
+    // So first we need to confirm that it is hidden when in the call.
+    await expect(
+      whistler.page.locator(".mx_BasicMessageComposer"),
+    ).not.toBeVisible();
+    await expect(
+      brooks.page.locator(".mx_BasicMessageComposer"),
+    ).not.toBeVisible();
+
+    // ASSERT hanging up on one side ends the call for both
+    await brooksFrame.getByRole("button", { name: "End call" }).click();
+
+    // The widget should be closed on both sides and the timeline should be back on screen
+    await expect(
+      whistler.page.locator(".mx_BasicMessageComposer"),
+    ).toBeVisible();
+    await expect(brooks.page.locator(".mx_BasicMessageComposer")).toBeVisible();
+  },
+);
+
+widgetTest(
+  "Decline a new video call in DM as widget",
+  async ({ asWidget, browserName }) => {
+    test.skip(
+      browserName === "firefox",
+      "The is test is not working on firefox CI environment. No mic/audio device inputs so cam/mic are disabled",
+    );
+
+    test.slow(); // Triples the timeout
+
+    const { brooks, whistler } = asWidget;
+
+    await TestHelpers.startCallInCurrentRoom(brooks.page, false);
+
+    await expect(
+      brooks.page.locator('iframe[title="Element Call"]'),
+    ).toBeVisible();
+
+    const brooksFrame = brooks.page
+      .locator('iframe[title="Element Call"]')
+      .contentFrame();
+
+    // We should show a ringing tile, let's check for that
+    await expect(
+      brooksFrame
+        .getByTestId("videoTile")
+        .filter({ has: brooksFrame.getByText(whistler.displayName) })
+        .filter({ has: brooksFrame.getByText("Calling…") }),
+    ).toBeVisible();
+
+    await expect(whistler.page.getByText("Incoming video call")).toBeVisible();
+    await whistler.page.getByRole("button", { name: "Decline" }).click();
+
+    await expect(
+      whistler.page.locator('iframe[title="Element Call"]'),
+    ).not.toBeVisible();
+
+    // The widget should be closed and the timeline should be back on screen
+    await expect(
+      brooks.page.locator('iframe[title="Element Call"]'),
+    ).not.toBeVisible();
+
+    await expect(
+      brooks.page.getByText("This is the beginning of your"),
+    ).toBeVisible();
+  },
+);

renovate.json

@@ -59,7 +59,7 @@
     }
   ],
   "semanticCommits": "disabled",
-  "ignoreDeps": ["posthog-js"],
+  "ignoreDeps": ["posthog-js", "eslint-plugin-matrix-org"],
   "vulnerabilityAlerts": {
     "schedule": ["at any time"],
     "prHourlyLimit": 0,

scripts/playwright-webserver-command.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+if [ -n "$USE_DOCKER" ]; then
+    set -ex
+    yarn build
+    docker build -t element-call:testing .
+    exec docker run --rm --name element-call-testing -p 8080:8080 -v ./config/config.devenv.json:/app/config.json:ro,Z element-call:testing
+else
+    cp config/config.devenv.json public/config.json
+    exec yarn dev
+fi

sdk/README.md

@@ -0,0 +1,59 @@
+# SDK mode (EXPERIMENTAL)
+
+EC can be build in sdk mode. This will result in a compiled js file that can be imported in very simple webapps.
+
+It allows to use matrixRTC in combination with livekit without relying on element call.
+
+This is done by instantiating the call view model and exposing some useful behaviors (observables) and methods.
+
+This folder contains an example index.html file that showcases the sdk in use (hosted on localhost:8123 with a webserver allowing cors (for example `npx serve -l 81234 --cors`)) as a godot engine HTML export template.
+
+## Getting started
+
+To get started run
+
+```
+yarn
+yarn build:sdk
+```
+
+in the repository root.
+
+It will create a `dist` folder containing the compiled js file.
+
+This file needs to be hosted. Locally (via `npx serve -l 81234 --cors`) or on a remote server.
+
+Now you just need to add the widget to element web via:
+
+```
+/addwidget http://localhost:3000?widgetId=$matrix_widget_id&perParticipantE2EE=true&userId=$matrix_user_id&deviceId=$org.matrix.msc3819.matrix_device_id&baseUrl=$org.matrix.msc4039.matrix_base_url&roomId=$matrix_room_id
+```
+
+## Widgets
+
+The sdk mode is particularly interesting to be used in widgets. In widgets you do not need to pay attention to matrix login/cs api ...
+To create a widget see the example `index.html` file in this folder. And add it to EW via:
+`/addwidget <widgetUrl>` (see **url parameters** for more details on `<widgetUrl>`)
+
+### url parameters
+
+The url parameters are needed to pass initial data to the widget. They will automatically be used
+by the matrixRTCSdk to start the postmessage widget api (communication between the client (e.g. Element Web) and the widget)
+
+```
+widgetId = $matrix_widget_id
+perParticipantE2EE = true
+userId = $matrix_user_id
+deviceId = $org.matrix.msc3819.matrix_device_id
+baseUrl = $org.matrix.msc4039.matrix_base_url
+```
+
+`parentUrl = // will be inserted automatically`
+
+Full template use as `<widgetUrl>`:
+
+```
+http://localhost:3000?widgetId=$matrix_widget_id&perParticipantE2EE=true&userId=$matrix_user_id&deviceId=$org.matrix.msc3819.matrix_device_id&baseUrl=$org.matrix.msc4039.matrix_base_url&roomId=$matrix_room_id
+```
+
+the `$` prefixed variables will be replaced by EW on widget instantiation. (e.g. `$matrix_user_id` -> `@user:example.com` (url encoding will also be applied automatically by EW) -> `%40user%3Aexample.com`)

sdk/helper.ts

@@ -0,0 +1,52 @@
+/*
+Copyright 2025 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+/**
+ * This file contains helper functions and types for the MatrixRTC SDK.
+ */
+
+import { logger as rootLogger } from "matrix-js-sdk/lib/logger";
+import { scan } from "rxjs";
+
+import { type WidgetHelpers } from "../src/widget";
+import { type LivekitRoomItem } from "../src/state/CallViewModel/CallViewModel";
+
+export const logger = rootLogger.getChild("[MatrixRTCSdk]");
+
+export const tryMakeSticky = (widget: WidgetHelpers): void => {
+  logger.info("try making sticky MatrixRTCSdk");
+  void widget.api
+    .setAlwaysOnScreen(true)
+    .then(() => {
+      logger.info("sticky MatrixRTCSdk");
+    })
+    .catch((error) => {
+      logger.error("failed to make sticky MatrixRTCSdk", error);
+    });
+};
+export const TEXT_LK_TOPIC = "matrixRTC";
+/**
+ * simple helper operator to combine the last emitted and the current emitted value of a rxjs observable
+ *
+ * I think there should be a builtin for this but i did not find it...
+ */
+export const currentAndPrev = scan<
+  LivekitRoomItem[],
+  {
+    prev: LivekitRoomItem[];
+    current: LivekitRoomItem[];
+  }
+>(
+  ({ current: lastCurrentVal }, items) => ({
+    prev: lastCurrentVal,
+    current: items,
+  }),
+  {
+    prev: [],
+    current: [],
+  },
+);

sdk/index.html

@@ -0,0 +1,68 @@
+<!doctype html>
+<html>
+  <head>
+    <title>MatrixRTC Widget</title>
+    <meta charset="utf-8" />
+    <script type="module">
+      // TODO use the url where the matrixrtc-sdk.js file from dist is hosted
+      import { createMatrixRTCSdk } from "http://localhost:8123/matrixrtc-sdk.js";
+
+      try {
+        window.matrixRTCSdk = await createMatrixRTCSdk(
+          "com.github.toger5.rtc-application-type", // rtc application type
+        );
+        console.info("createMatrixRTCSdk was created!");
+      } catch (e) {
+        console.error("createMatrixRTCSdk", e);
+      }
+      const sdk = window.matrixRTCSdk;
+
+      console.info("matrixRTCSdk join ", sdk);
+      const connectionState = sdk.join();
+      console.info("matrixRTCSdk joined");
+
+      const div = document.getElementById("data");
+      div.innerHTML = "<h3>Data:</h3>";
+
+      sdk.data$.subscribe((data) => {
+        const child = document.createElement("p");
+        child.innerHTML = JSON.stringify(data);
+        div.appendChild(child);
+      });
+
+      sdk.members$.subscribe((memberObjects) => {
+        const div = document.getElementById("members");
+        div.innerHTML = "<h3>Members:</h3>";
+
+        // Create member list
+        const members = memberObjects.map((member) => member.membership.sender);
+        console.info("members changed", members);
+        for (const m of members) {
+          console.info("member", m);
+          const child = document.createElement("p");
+          child.innerHTML = m;
+          div.appendChild(child);
+        }
+      });
+
+      sdk.connected$.subscribe((connected) => {
+        console.info("connected changed", connected);
+        const div = document.getElementById("connect_status");
+        div.innerHTML = connected ? "Connected" : "Disconnected";
+      });
+    </script>
+  </head>
+  <body>
+    <div
+      style="position: absolute; top: 0; right: 0; background-color: #ffffff10"
+    >
+      <div id="connect_status"></div>
+      <button onclick="window.matrixRTCSdk.leave()">Leave</button>
+      <button onclick="window.matrixRTCSdk.sendData({ prop: 'Hello, world!' })">
+        Send Text
+      </button>
+      <div id="members"></div>
+      <div id="data"></div>
+    </div>
+  </body>
+</html>

sdk/main.ts

@@ -0,0 +1,368 @@
+/*
+Copyright 2025-2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+/**
+ * EXPERIMENTAL
+ *
+ * This file is the entrypoint for the sdk build of element call: `yarn build:sdk`
+ * use in widgets.
+ * It exposes the `createMatrixRTCSdk` which creates the `MatrixRTCSdk` interface (see below) that
+ * can be used to join a rtc session and exchange realtime data.
+ * It takes care of all the tricky bits:
+ *  - sending delayed events
+ *  - finding the right sfu
+ *  - handling the media stream
+ *  - sending join/leave state or sticky events
+ *  - setting up encryption and scharing keys
+ */
+
+import {
+  combineLatest,
+  map,
+  type Observable,
+  of,
+  shareReplay,
+  Subject,
+  switchMap,
+  tap,
+} from "rxjs";
+import {
+  type CallMembership,
+  MatrixRTCSessionEvent,
+  MatrixRTCSessionManager,
+} from "matrix-js-sdk/lib/matrixrtc";
+import {
+  type Room as LivekitRoom,
+  type TextStreamReader,
+  type LocalParticipant,
+  type RemoteParticipant,
+} from "livekit-client";
+
+// TODO how can this get fixed? to just be part of `livekit-client`
+// Can this be done in the tsconfig.json
+import { type TextStreamInfo } from "../node_modules/livekit-client/dist/src/room/types";
+import { type Behavior, constant } from "../src/state/Behavior";
+import { createCallViewModel$ } from "../src/state/CallViewModel/CallViewModel";
+import { ObservableScope } from "../src/state/ObservableScope";
+import { getUrlParams } from "../src/UrlParams";
+import { MuteStates } from "../src/state/MuteStates";
+import { MediaDevices } from "../src/state/MediaDevices";
+import { E2eeType } from "../src/e2ee/e2eeType";
+import { currentAndPrev, logger, TEXT_LK_TOPIC, tryMakeSticky } from "./helper";
+import {
+  ElementWidgetActions,
+  widget as _widget,
+  initializeWidget,
+} from "../src/widget";
+import { type Connection } from "../src/state/CallViewModel/remoteMembers/Connection";
+
+interface MatrixRTCSdk {
+  /**
+   * observe connected$ to track the state.
+   * @returns
+   */
+  join: () => void;
+  /** @throws on leave errors */
+  leave: () => void;
+  /**
+   * Ends the rtc sdk. This will unsubscribe any event listeners. And end the associated scope.
+   * No updates can be received from the rtc sdk. The sdk cannot be restarted after.
+   * A new sdk needs to be created via createMatrixRTCSdk.
+   */
+  stop: () => void;
+  data$: Observable<{ rtcBackendIdentity: string; data: string }>;
+  /**
+   * flattened list of members
+   */
+  members$: Behavior<
+    {
+      connection: Connection | null;
+      membership: CallMembership;
+      participant: LocalParticipant | RemoteParticipant | null;
+    }[]
+  >;
+  /**
+   * flattened local members
+   */
+  localMember$: Behavior<{
+    connection: Connection | null;
+    membership: CallMembership;
+    participant: LocalParticipant | null;
+  } | null>;
+  /** Use the LocalMemberConnectionState returned from `join` for a more detailed connection state  */
+  connected$: Behavior<boolean>;
+  sendData?: (data: unknown) => Promise<void>;
+  sendRoomMessage?: (message: string) => Promise<void>;
+}
+
+export async function createMatrixRTCSdk(
+  application: string = "m.call",
+  id: string = "",
+  sticky: boolean = false,
+): Promise<MatrixRTCSdk> {
+  const scope = new ObservableScope();
+
+  // widget client
+  initializeWidget(application, true);
+  const widget = _widget;
+  if (!widget) throw Error("No widget. This webapp can only start as a widget");
+  const client = await widget.client;
+  logger.info("client created");
+
+  // url params
+  const { roomId } = getUrlParams();
+  if (roomId === null) throw Error("could not get roomId from url params");
+  const room = client.getRoom(roomId);
+  if (room === null) throw Error("could not get room from client");
+
+  // rtc session
+  const slot = { application, id };
+  const rtcSessionManager = new MatrixRTCSessionManager(logger, client, slot);
+  rtcSessionManager.start();
+  const rtcSession = rtcSessionManager.getRoomSession(room);
+
+  // media devices
+  const mediaDevices = new MediaDevices(scope);
+  const muteStates = new MuteStates(scope, mediaDevices, {
+    audioEnabled: false,
+    videoEnabled: false,
+  });
+
+  // call view model
+  const callViewModel = createCallViewModel$(
+    scope,
+    rtcSession,
+    room,
+    mediaDevices,
+    muteStates,
+    { encryptionSystem: { kind: E2eeType.PER_PARTICIPANT } },
+    of({}),
+    of({}),
+    constant({ supported: false, processor: undefined }),
+  );
+  logger.info("CallViewModelCreated");
+
+  // create data listener
+  const data$ = new Subject<{ rtcBackendIdentity: string; data: string }>();
+
+  const lkTextStreamHandlerFunction = async (
+    reader: TextStreamReader,
+    participantInfo: { identity: string },
+    livekitRoom: LivekitRoom,
+  ): Promise<void> => {
+    const info = reader.info;
+    logger.info(
+      `Received text stream from ${participantInfo.identity}\n` +
+        `  Topic: ${info.topic}\n` +
+        `  Timestamp: ${info.timestamp}\n` +
+        `  ID: ${info.id}\n` +
+        `  Size: ${info.size}`, // Optional, only available if the stream was sent with `sendText`
+    );
+
+    const participants = callViewModel.livekitRoomItems$.value.find(
+      (i) => i.livekitRoom === livekitRoom,
+    )?.participants;
+    if (participants && participants.includes(participantInfo.identity)) {
+      const text = await reader.readAll();
+      logger.info(`Received text: ${text}`);
+      data$.next({ rtcBackendIdentity: participantInfo.identity, data: text });
+    } else {
+      logger.warn(
+        "Received text from unknown participant",
+        participantInfo.identity,
+      );
+    }
+  };
+
+  const livekitRoomItemsSub = callViewModel.livekitRoomItems$
+    .pipe(
+      tap((beforecurrentAndPrev) => {
+        logger.info(
+          `LiveKit room items updated: ${beforecurrentAndPrev.length}`,
+          beforecurrentAndPrev,
+        );
+      }),
+      currentAndPrev,
+      tap((aftercurrentAndPrev) => {
+        logger.info(
+          `LiveKit room items updated: ${aftercurrentAndPrev.current.length}, ${aftercurrentAndPrev.prev.length}`,
+          aftercurrentAndPrev,
+        );
+      }),
+    )
+    .subscribe({
+      next: ({ prev, current }) => {
+        const prevRooms = prev.map((i) => i.livekitRoom);
+        const currentRooms = current.map((i) => i.livekitRoom);
+        const addedRooms = currentRooms.filter((r) => !prevRooms.includes(r));
+        const removedRooms = prevRooms.filter((r) => !currentRooms.includes(r));
+        addedRooms.forEach((r) => {
+          logger.info(`Registering text stream handler for room `);
+          r.registerTextStreamHandler(
+            TEXT_LK_TOPIC,
+            (reader, participantInfo) =>
+              void lkTextStreamHandlerFunction(reader, participantInfo, r),
+          );
+        });
+        removedRooms.forEach((r) => {
+          logger.info(`Unregistering text stream handler for room `);
+          r.unregisterTextStreamHandler(TEXT_LK_TOPIC);
+        });
+      },
+      complete: () => {
+        logger.info("Livekit room items subscription completed");
+        for (const item of callViewModel.livekitRoomItems$.value) {
+          logger.info("unregistering room item from room", item.url);
+          item.livekitRoom.unregisterTextStreamHandler(TEXT_LK_TOPIC);
+        }
+      },
+    });
+
+  // create sendData function
+  const sendFn: Behavior<(data: string) => Promise<TextStreamInfo>> =
+    scope.behavior(
+      callViewModel.localMatrixLivekitMember$.pipe(
+        switchMap((m) => {
+          if (!m)
+            return of((data: string): never => {
+              throw Error("local membership not yet ready.");
+            });
+          return m.participant.value$.pipe(
+            map((p) => {
+              if (p === null) {
+                return (data: string): never => {
+                  throw Error("local participant not yet ready to send data.");
+                };
+              } else {
+                return async (data: string): Promise<TextStreamInfo> =>
+                  p.sendText(data, { topic: TEXT_LK_TOPIC });
+              }
+            }),
+          );
+        }),
+      ),
+    );
+
+  const sendData = async (data: unknown): Promise<void> => {
+    const dataString = JSON.stringify(data);
+    logger.info("try sending: ", dataString);
+    try {
+      await Promise.resolve();
+      const info = await sendFn.value(dataString);
+      logger.info(`Sent text with stream ID: ${info.id}`);
+    } catch (e) {
+      logger.error("failed sending: ", dataString, e);
+    }
+  };
+
+  const sendRoomMessage = async (message: string): Promise<void> => {
+    const messageString = JSON.stringify(message);
+    logger.info("try sending to room: ", messageString);
+    try {
+      await client.sendTextMessage(room.roomId, message);
+    } catch (e) {
+      logger.error("failed sending to room: ", messageString, e);
+    }
+  };
+
+  // after hangup gets called
+  const leaveSubs = callViewModel.leave$.subscribe(() => {
+    const scheduleWidgetCloseOnLeave = async (): Promise<void> => {
+      const leaveResolver = Promise.withResolvers<void>();
+      logger.info("waiting for RTC leave");
+      rtcSession.on(MatrixRTCSessionEvent.JoinStateChanged, (isJoined) => {
+        logger.info("received RTC join update: ", isJoined);
+        if (!isJoined) leaveResolver.resolve();
+      });
+      await leaveResolver.promise;
+      logger.info("send Unstick");
+      await widget.api
+        .setAlwaysOnScreen(false)
+        .catch((e) =>
+          logger.error(
+            "Failed to set call widget `alwaysOnScreen` to false",
+            e,
+          ),
+        );
+      logger.info("send Close");
+      await widget.api.transport
+        .send(ElementWidgetActions.Close, {})
+        .catch((e) => logger.error("Failed to send close action", e));
+    };
+
+    // schedule close first and then leave (scope.end)
+    void scheduleWidgetCloseOnLeave();
+  });
+
+  logger.info("createMatrixRTCSdk done");
+
+  return {
+    join: (): void => {
+      // first lets try making the widget sticky
+      if (sticky) tryMakeSticky(widget);
+      callViewModel.join();
+    },
+    leave: (): void => {
+      callViewModel.leave();
+    },
+    stop: (): void => {
+      leaveSubs.unsubscribe();
+      livekitRoomItemsSub.unsubscribe();
+      scope.end();
+    },
+    data$,
+    localMember$: scope.behavior(
+      callViewModel.localMatrixLivekitMember$.pipe(
+        tap((member) =>
+          logger.info("localMatrixLivekitMember$ next: ", member),
+        ),
+        switchMap((member) => {
+          if (member === null) return of(null);
+          return combineLatest([
+            member.connection$,
+            member.membership$,
+            member.participant.value$,
+          ]).pipe(
+            map(([connection, membership, participant]) => ({
+              connection,
+              membership,
+              participant,
+            })),
+          );
+        }),
+        tap((member) => logger.info("localMember$ next: ", member)),
+      ),
+    ),
+    connected$: callViewModel.connected$,
+    members$: scope.behavior(
+      callViewModel.matrixLivekitMembers$.pipe(
+        switchMap((members) => {
+          const listOfMemberObservables = members.map((member) =>
+            combineLatest([
+              member.connection$,
+              member.membership$,
+              member.participant.value$,
+            ]).pipe(
+              map(([connection, membership, participant]) => ({
+                connection,
+                membership,
+                participant,
+              })),
+              // using shareReplay instead of a Behavior here because the behavior would need
+              // a tricky scope.end() setup.
+              shareReplay({ bufferSize: 1, refCount: true }),
+            ),
+          );
+          return combineLatest(listOfMemberObservables);
+        }),
+      ),
+      [],
+    ),
+    sendData,
+    sendRoomMessage,
+  };
+}

src/@types/dom-mediacapture-transform.d.ts

@@ -0,0 +1,147 @@
+/* eslint-disable */
+// The contents of this file below the line are copied from
+// @types/dom-mediacapture-transform, which is inlined here into Element Call so
+// that we can avoid the package's dependency on @types/dom-webcodecs, which is
+// broken in TypeScript 5.9.
+// (https://github.com/DefinitelyTyped/DefinitelyTyped/discussions/74294)
+// If that issue is resolved, we can remove this file and return to depending on
+// @types/dom-mediacapture-transform.
+// -----------------------------------------------------------------------------
+
+// This project is licensed under the MIT license.
+// Copyrights are respective of each contributor listed at the beginning of each definition file.
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// In general, these types are only available behind a command line flag or an origin trial in
+// Chrome 90+.
+
+// This API depends on WebCodecs.
+
+// Versioning:
+// Until the above-mentioned spec is finalized, the major version number is 0. Although not
+// necessary for version 0, consider incrementing the minor version number for breaking changes.
+
+// The following modify existing DOM types to allow defining type-safe APIs on audio and video tracks.
+
+/** Specialize MediaStreamTrack so that we can refer specifically to an audio track. */
+interface MediaStreamAudioTrack extends MediaStreamTrack {
+  readonly kind: "audio";
+  clone(): MediaStreamAudioTrack;
+}
+
+/** Specialize MediaStreamTrack so that we can refer specifically to a video track. */
+interface MediaStreamVideoTrack extends MediaStreamTrack {
+  readonly kind: "video";
+  clone(): MediaStreamVideoTrack;
+}
+
+/** Assert that getAudioTracks and getVideoTracks return the tracks with the appropriate kind. */
+interface MediaStream {
+  getAudioTracks(): MediaStreamAudioTrack[];
+  getVideoTracks(): MediaStreamVideoTrack[];
+}
+
+// The following were originally generated from the spec using
+// https://github.com/microsoft/TypeScript-DOM-lib-generator, then heavily modified.
+
+/**
+ * A track sink that is capable of exposing the unencoded frames from the track to a
+ * ReadableStream, and exposes a control channel for signals going in the oppposite direction.
+ */
+interface MediaStreamTrackProcessor<T extends AudioData | VideoFrame> {
+  /**
+   * Allows reading the frames flowing through the MediaStreamTrack provided to the constructor.
+   */
+  readonly readable: ReadableStream<T>;
+  /** Allows sending control signals to the MediaStreamTrack provided to the constructor. */
+  readonly writableControl: WritableStream<MediaStreamTrackSignal>;
+}
+
+declare var MediaStreamTrackProcessor: {
+  prototype: MediaStreamTrackProcessor<any>;
+
+  /** Constructor overrides based on the type of track. */
+  new (
+    init: MediaStreamTrackProcessorInit & { track: MediaStreamAudioTrack },
+  ): MediaStreamTrackProcessor<AudioData>;
+  new (
+    init: MediaStreamTrackProcessorInit & { track: MediaStreamVideoTrack },
+  ): MediaStreamTrackProcessor<VideoFrame>;
+};
+
+interface MediaStreamTrackProcessorInit {
+  track: MediaStreamTrack;
+  /**
+   * If media frames are not read from MediaStreamTrackProcessor.readable quickly enough, the
+   * MediaStreamTrackProcessor will internally buffer up to maxBufferSize of the frames produced
+   * by the track. If the internal buffer is full, each time the track produces a new frame, the
+   * oldest frame in the buffer will be dropped and the new frame will be added to the buffer.
+   */
+  maxBufferSize?: number | undefined;
+}
+
+/**
+ * Takes video frames as input, and emits control signals that result from subsequent processing.
+ */
+interface MediaStreamTrackGenerator<
+  T extends AudioData | VideoFrame,
+> extends MediaStreamTrack {
+  /**
+   * Allows writing media frames to the MediaStreamTrackGenerator, which is itself a
+   * MediaStreamTrack. When a frame is written to writable, the frame’s close() method is
+   * automatically invoked, so that its internal resources are no longer accessible from
+   * JavaScript.
+   */
+  readonly writable: WritableStream<T>;
+  /**
+   * Allows reading control signals sent from any sinks connected to the
+   * MediaStreamTrackGenerator.
+   */
+  readonly readableControl: ReadableStream<MediaStreamTrackSignal>;
+}
+
+type MediaStreamAudioTrackGenerator = MediaStreamTrackGenerator<AudioData> &
+  MediaStreamAudioTrack;
+type MediaStreamVideoTrackGenerator = MediaStreamTrackGenerator<VideoFrame> &
+  MediaStreamVideoTrack;
+
+declare var MediaStreamTrackGenerator: {
+  prototype: MediaStreamTrackGenerator<any>;
+
+  /** Constructor overrides based on the type of track. */
+  new (
+    init: MediaStreamTrackGeneratorInit & {
+      kind: "audio";
+      signalTarget?: MediaStreamAudioTrack | undefined;
+    },
+  ): MediaStreamAudioTrackGenerator;
+  new (
+    init: MediaStreamTrackGeneratorInit & {
+      kind: "video";
+      signalTarget?: MediaStreamVideoTrack | undefined;
+    },
+  ): MediaStreamVideoTrackGenerator;
+};
+
+interface MediaStreamTrackGeneratorInit {
+  kind: MediaStreamTrackGeneratorKind;
+  /**
+   * (Optional) track to which the MediaStreamTrackGenerator will automatically forward control
+   * signals. If signalTarget is provided and signalTarget.kind and kind do not match, the
+   * MediaStreamTrackGenerator’s constructor will raise an exception.
+   */
+  signalTarget?: MediaStreamTrack | undefined;
+}
+
+type MediaStreamTrackGeneratorKind = "audio" | "video";
+
+type MediaStreamTrackSignalType = "request-frame";
+
+interface MediaStreamTrackSignal {
+  signalType: MediaStreamTrackSignalType;
+}

src/App.tsx

@@ -5,7 +5,14 @@ SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
 Please see LICENSE in the repository root for full details.
 */
 
-import { type FC, type JSX, Suspense, useEffect, useState } from "react";
+import {
+  type FC,
+  type JSX,
+  Suspense,
+  useEffect,
+  useMemo,
+  useState,
+} from "react";
 import { BrowserRouter, Route, useLocation, Routes } from "react-router-dom";
 import * as Sentry from "@sentry/react";
 import { TooltipProvider } from "@vector-im/compound-web";
@@ -17,12 +24,14 @@ import { RegisterPage } from "./auth/RegisterPage";
 import { RoomPage } from "./room/RoomPage";
 import { ClientProvider } from "./ClientContext";
 import { ErrorPage, LoadingPage } from "./FullScreenView";
-import { DisconnectedBanner } from "./DisconnectedBanner";
 import { Initializer } from "./initializer";
-import { MediaDevicesProvider } from "./livekit/MediaDevicesContext";
 import { widget } from "./widget";
 import { useTheme } from "./useTheme";
 import { ProcessorProvider } from "./livekit/TrackProcessorContext";
+import { type AppViewModel } from "./state/AppViewModel";
+import { MediaDevicesContext } from "./MediaDevicesContext";
+import { getUrlParams, HeaderStyle } from "./UrlParams";
+import { AppBar } from "./AppBar";
 
 const SentryRoute = Sentry.withSentryReactRouterV7Routing(Route);
 
@@ -50,7 +59,11 @@ const ThemeProvider: FC<SimpleProviderProps> = ({ children }) => {
   return children;
 };
 
-export const App: FC = () => {
+interface Props {
+  vm: AppViewModel;
+}
+
+export const App: FC<Props> = ({ vm }) => {
   const [loaded, setLoaded] = useState(false);
   useEffect(() => {
     Initializer.init()
@@ -62,41 +75,42 @@ export const App: FC = () => {
       .catch(logger.error);
   });
 
+  // Since we are outside the router component, we cannot use useUrlParams here
+  const { header } = useMemo(getUrlParams, []);
+
+  const content = loaded ? (
+    <ClientProvider>
+      <MediaDevicesContext value={vm.mediaDevices}>
+        <ProcessorProvider>
+          <Sentry.ErrorBoundary
+            fallback={(error) => <ErrorPage error={error} widget={widget} />}
+          >
+            <Routes>
+              <SentryRoute path="/" element={<HomePage />} />
+              <SentryRoute path="/login" element={<LoginPage />} />
+              <SentryRoute path="/register" element={<RegisterPage />} />
+              <SentryRoute path="*" element={<RoomPage />} />
+            </Routes>
+          </Sentry.ErrorBoundary>
+        </ProcessorProvider>
+      </MediaDevicesContext>
+    </ClientProvider>
+  ) : (
+    <LoadingPage />
+  );
+
   return (
-    // eslint-disable-next-line @typescript-eslint/ban-ts-comment
-    // @ts-ignore
     <BrowserRouter>
       <BackgroundProvider>
         <ThemeProvider>
           <TooltipProvider>
-            {loaded ? (
-              <Suspense fallback={null}>
-                <ClientProvider>
-                  <MediaDevicesProvider>
-                    <ProcessorProvider>
-                      <Sentry.ErrorBoundary
-                        fallback={(error) => (
-                          <ErrorPage error={error} widget={widget} />
-                        )}
-                      >
-                        <DisconnectedBanner />
-                        <Routes>
-                          <SentryRoute path="/" element={<HomePage />} />
-                          <SentryRoute path="/login" element={<LoginPage />} />
-                          <SentryRoute
-                            path="/register"
-                            element={<RegisterPage />}
-                          />
-                          <SentryRoute path="*" element={<RoomPage />} />
-                        </Routes>
-                      </Sentry.ErrorBoundary>
-                    </ProcessorProvider>
-                  </MediaDevicesProvider>
-                </ClientProvider>
-              </Suspense>
-            ) : (
-              <LoadingPage />
-            )}
+            <Suspense fallback={null}>
+              {header === HeaderStyle.AppBar ? (
+                <AppBar>{content}</AppBar>
+              ) : (
+                content
+              )}
+            </Suspense>
           </TooltipProvider>
         </ThemeProvider>
       </BackgroundProvider>

src/AppBar.module.css

@@ -0,0 +1,23 @@
+.bar {
+  block-size: 64px;
+  flex-shrink: 0;
+}
+
+.bar > header {
+  position: absolute;
+  inset-inline: 0;
+  inset-block-start: 0;
+  block-size: 64px;
+  z-index: var(--call-view-header-footer-layer);
+}
+
+.bar svg path {
+  fill: var(--cpd-color-icon-primary);
+}
+
+.bar > header > h1 {
+  margin: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}

src/AppBar.test.tsx

@@ -0,0 +1,25 @@
+/*
+Copyright 2025 New Vector Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { render } from "@testing-library/react";
+import { describe, expect, it } from "vitest";
+import { TooltipProvider } from "@vector-im/compound-web";
+
+import { AppBar } from "./AppBar";
+
+describe("AppBar", () => {
+  it("renders", () => {
+    const { container } = render(
+      <TooltipProvider>
+        <AppBar>
+          <p>This is the content.</p>
+        </AppBar>
+      </TooltipProvider>,
+    );
+    expect(container).toMatchSnapshot();
+  });
+});

src/AppBar.tsx

@@ -0,0 +1,134 @@
+/*
+Copyright 2025 New Vector Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import {
+  createContext,
+  type FC,
+  type MouseEvent,
+  type ReactNode,
+  use,
+  useCallback,
+  useEffect,
+  useMemo,
+  useState,
+} from "react";
+import { Heading, IconButton, Tooltip } from "@vector-im/compound-web";
+import { CollapseIcon } from "@vector-im/compound-design-tokens/assets/web/icons";
+import { useTranslation } from "react-i18next";
+
+import { Header, LeftNav, RightNav } from "./Header";
+import { platform } from "./Platform";
+import styles from "./AppBar.module.css";
+
+interface AppBarContext {
+  setTitle: (value: string) => void;
+  setSecondaryButton: (value: ReactNode) => void;
+  setHidden: (value: boolean) => void;
+}
+
+const AppBarContext = createContext<AppBarContext | null>(null);
+
+interface Props {
+  children: ReactNode;
+}
+
+/**
+ * A "top app bar" featuring a back button, title and possibly a secondary
+ * button, similar to what you might see in mobile apps.
+ */
+export const AppBar: FC<Props> = ({ children }) => {
+  const { t } = useTranslation();
+  const onBackClick = useCallback((e: MouseEvent) => {
+    e.preventDefault();
+    window.controls.onBackButtonPressed?.();
+  }, []);
+
+  const [title, setTitle] = useState<string>("");
+  const [hidden, setHidden] = useState<boolean>(false);
+  const [secondaryButton, setSecondaryButton] = useState<ReactNode>(null);
+  const context = useMemo(
+    () => ({ setTitle, setSecondaryButton, setHidden }),
+    [setTitle, setHidden, setSecondaryButton],
+  );
+
+  return (
+    <>
+      <div
+        style={{ display: hidden ? "none" : "block" }}
+        className={styles.bar}
+      >
+        <Header
+          // App bar is mainly seen in the call view, which has its own
+          // 'reconnecting' toast
+          disconnectedBanner={false}
+        >
+          <LeftNav>
+            <Tooltip label={t("common.back")}>
+              <IconButton onClick={onBackClick}>
+                <CollapseIcon />
+              </IconButton>
+            </Tooltip>
+          </LeftNav>
+          {title && (
+            <Heading
+              type="body"
+              size="lg"
+              weight={platform === "android" ? "medium" : "semibold"}
+            >
+              {title}
+            </Heading>
+          )}
+          <RightNav>{secondaryButton}</RightNav>
+        </Header>
+      </div>
+      <AppBarContext value={context}>{children}</AppBarContext>
+    </>
+  );
+};
+
+/**
+ * React hook which sets the title to be shown in the app bar, if present. It is
+ * an error to call this hook from multiple sites in the same component tree.
+ */
+export function useAppBarTitle(title: string): void {
+  const setTitle = use(AppBarContext)?.setTitle;
+  useEffect(() => {
+    if (setTitle !== undefined) {
+      setTitle(title);
+      return (): void => setTitle("");
+    }
+  }, [title, setTitle]);
+}
+
+/**
+ * React hook which sets the title to be shown in the app bar, if present. It is
+ * an error to call this hook from multiple sites in the same component tree.
+ */
+export function useAppBarHidden(hidden: boolean): void {
+  const setHidden = use(AppBarContext)?.setHidden;
+  useEffect(() => {
+    if (setHidden !== undefined) {
+      setHidden(hidden);
+      return (): void => setHidden(false);
+    }
+  }, [setHidden, hidden]);
+}
+
+/**
+ * React hook which sets the secondary button to be shown in the app bar, if
+ * present. It is an error to call this hook from multiple sites in the same
+ * component tree.
+ */
+export function useAppBarSecondaryButton(button: ReactNode): void {
+  const setSecondaryButton = use(AppBarContext)?.setSecondaryButton;
+  useEffect(() => {
+    if (setSecondaryButton !== undefined) {
+      setSecondaryButton(button);
+      return (): void => setSecondaryButton("");
+    }
+  }, [button, setSecondaryButton]);
+}

src/Avatar.test.tsx

@@ -9,14 +9,18 @@ import { afterEach, expect, test, vi } from "vitest";
 import { render, screen } from "@testing-library/react";
 import { type MatrixClient } from "matrix-js-sdk";
 import { type FC, type PropsWithChildren } from "react";
+import { type WidgetApi } from "matrix-widget-api";
 
 import { ClientContextProvider } from "./ClientContext";
 import { Avatar } from "./Avatar";
 import { mockMatrixRoomMember, mockRtcMembership } from "./utils/test";
+import { widget } from "./widget";
 
 const TestComponent: FC<
-  PropsWithChildren<{ client: MatrixClient; supportsThumbnails?: boolean }>
-> = ({ client, children, supportsThumbnails }) => {
+  PropsWithChildren<{
+    client: MatrixClient;
+  }>
+> = ({ client, children }) => {
   return (
     <ClientContextProvider
       value={{
@@ -24,7 +28,6 @@ const TestComponent: FC<
         disconnected: false,
         supportedFeatures: {
           reactions: true,
-          thumbnails: supportsThumbnails ?? true,
         },
         setClient: vi.fn(),
         authenticated: {
@@ -40,6 +43,12 @@ const TestComponent: FC<
   );
 };
 
+vi.mock("./widget", () => ({
+  widget: {
+    api: null, // Ideally we'd only mock this in the as a widget test so the whole module is otherwise null, but just nulling `api` by default works well enough
+  },
+}));
+
 afterEach(() => {
   vi.unstubAllGlobals();
 });
@@ -73,36 +82,7 @@ test("should just render a placeholder when the user has no avatar", () => {
   expect(client.mxcUrlToHttp).toBeCalledTimes(0);
 });
 
-test("should just render a placeholder when thumbnails are not supported", () => {
-  const client = vi.mocked<MatrixClient>({
-    getAccessToken: () => "my-access-token",
-    mxcUrlToHttp: () => vi.fn(),
-  } as unknown as MatrixClient);
-
-  vi.spyOn(client, "mxcUrlToHttp");
-  const member = mockMatrixRoomMember(
-    mockRtcMembership("@alice:example.org", "AAAA"),
-    {
-      getMxcAvatarUrl: () => "mxc://example.org/alice-avatar",
-    },
-  );
-  const displayName = "Alice";
-  render(
-    <TestComponent client={client} supportsThumbnails={false}>
-      <Avatar
-        id={member.userId}
-        name={displayName}
-        size={96}
-        src={member.getMxcAvatarUrl()}
-      />
-    </TestComponent>,
-  );
-  const element = screen.getByRole("img", { name: "@alice:example.org" });
-  expect(element.tagName).toEqual("SPAN");
-  expect(client.mxcUrlToHttp).toBeCalledTimes(0);
-});
-
-test("should attempt to fetch authenticated media", async () => {
+test("should attempt to fetch authenticated media from the server", async () => {
   const expectedAuthUrl = "http://example.org/media/alice-avatar";
   const expectedObjectURL = "my-object-url";
   const accessToken = "my-access-token";
@@ -154,3 +134,47 @@ test("should attempt to fetch authenticated media", async () => {
     headers: { Authorization: `Bearer ${accessToken}` },
   });
 });
+
+test("should attempt to use widget API if running as a widget", async () => {
+  const expectedMXCUrl = "mxc://example.org/alice-avatar";
+  const expectedObjectURL = "my-object-url";
+  const theBlob = new Blob([]);
+
+  // vitest doesn't have a implementation of create/revokeObjectURL, so we need
+  // to delete the property. It's a bit odd, but it works.
+  Reflect.deleteProperty(global.window.URL, "createObjectURL");
+  globalThis.URL.createObjectURL = vi.fn().mockReturnValue(expectedObjectURL);
+  Reflect.deleteProperty(global.window.URL, "revokeObjectURL");
+  globalThis.URL.revokeObjectURL = vi.fn();
+
+  const client = vi.mocked<MatrixClient>({
+    getAccessToken: () => undefined,
+  } as unknown as MatrixClient);
+
+  widget!.api = { downloadFile: vi.fn() } as unknown as WidgetApi;
+  vi.spyOn(widget!.api, "downloadFile").mockResolvedValue({ file: theBlob });
+  const member = mockMatrixRoomMember(
+    mockRtcMembership("@alice:example.org", "AAAA"),
+    {
+      getMxcAvatarUrl: () => expectedMXCUrl,
+    },
+  );
+  const displayName = "Alice";
+  render(
+    <TestComponent client={client}>
+      <Avatar
+        id={member.userId}
+        name={displayName}
+        size={96}
+        src={member.getMxcAvatarUrl()}
+      />
+    </TestComponent>,
+  );
+
+  // Fetch is asynchronous, so wait for this to resolve.
+  await vi.waitUntil(() =>
+    document.querySelector(`img[src='${expectedObjectURL}']`),
+  );
+
+  expect(widget!.api.downloadFile).toBeCalledWith(expectedMXCUrl);
+});

src/Avatar.tsx

@@ -14,8 +14,10 @@ import {
 } from "react";
 import { Avatar as CompoundAvatar } from "@vector-im/compound-web";
 import { type MatrixClient } from "matrix-js-sdk";
+import { type WidgetApi } from "matrix-widget-api";
 
 import { useClientState } from "./ClientContext";
+import { widget } from "./widget";
 
 export enum Size {
   XS = "xs",
@@ -78,50 +80,54 @@ export const Avatar: FC<Props> = ({
   const sizePx = useMemo(
     () =>
       Object.values(Size).includes(size as Size)
-        ? sizes.get(size as Size)
+        ? sizes.get(size as Size)!
         : (size as number),
     [size],
   );
 
   const [avatarUrl, setAvatarUrl] = useState<string | undefined>(undefined);
 
+  // In theory, a change in `clientState` or `sizePx` could run extra getAvatarFromWidgetAPI calls, but in practice they should be stable long before this code runs.
   useEffect(() => {
-    if (clientState?.state !== "valid") {
-      return;
-    }
-    const { authenticated, supportedFeatures } = clientState;
-    const client = authenticated?.client;
-
-    if (!client || !src || !sizePx || !supportedFeatures.thumbnails) {
+    if (!src) {
+      setAvatarUrl(undefined);
       return;
     }
 
-    const token = client.getAccessToken();
-    if (!token) {
-      return;
-    }
-    const resolveSrc = getAvatarUrl(client, src, sizePx);
-    if (!resolveSrc) {
+    let blob: Promise<Blob>;
+
+    if (widget?.api) {
+      blob = getAvatarFromWidgetAPI(widget.api, src);
+    } else if (
+      clientState?.state === "valid" &&
+      clientState.authenticated?.client &&
+      sizePx
+    ) {
+      blob = getAvatarFromServer(clientState.authenticated.client, src, sizePx);
+    } else {
       setAvatarUrl(undefined);
       return;
     }
 
     let objectUrl: string | undefined;
-    fetch(resolveSrc, {
-      headers: {
-        Authorization: `Bearer ${token}`,
-      },
-    })
-      .then(async (req) => req.blob())
+    let stale = false;
+    blob
       .then((blob) => {
+        if (stale) {
+          return;
+        }
         objectUrl = URL.createObjectURL(blob);
         setAvatarUrl(objectUrl);
       })
       .catch((ex) => {
+        if (stale) {
+          return;
+        }
         setAvatarUrl(undefined);
       });
 
     return (): void => {
+      stale = true;
       if (objectUrl) {
         URL.revokeObjectURL(objectUrl);
       }
@@ -130,6 +136,7 @@ export const Avatar: FC<Props> = ({
 
   return (
     <CompoundAvatar
+      key={id}
       className={className}
       id={id}
       name={name}
@@ -140,3 +147,44 @@ export const Avatar: FC<Props> = ({
     />
   );
 };
+
+async function getAvatarFromServer(
+  client: MatrixClient,
+  src: string,
+  sizePx: number,
+): Promise<Blob> {
+  const httpSrc = getAvatarUrl(client, src, sizePx);
+  if (!httpSrc) {
+    throw new Error("Failed to get http avatar URL");
+  }
+
+  const token = client.getAccessToken();
+  if (!token) {
+    throw new Error("Failed to get access token");
+  }
+
+  const request = await fetch(httpSrc, {
+    headers: {
+      Authorization: `Bearer ${token}`,
+    },
+  });
+
+  const blob = await request.blob();
+
+  return blob;
+}
+
+async function getAvatarFromWidgetAPI(
+  api: WidgetApi,
+  src: string,
+): Promise<Blob> {
+  const response = await api.downloadFile(src);
+  const file = response.file;
+
+  // element-web sends a Blob, and the MSC4039 is considering changing the spec to strictly Blob, so only handling that
+  if (!(file instanceof Blob)) {
+    throw new Error("Downloaded file is not a Blob");
+  }
+
+  return file;
+}

src/ClientContext.tsx

@@ -11,7 +11,7 @@ import {
   useEffect,
   useState,
   createContext,
-  useContext,
+  use,
   useRef,
   useMemo,
   type JSX,
@@ -48,7 +48,6 @@ export type ValidClientState = {
   disconnected: boolean;
   supportedFeatures: {
     reactions: boolean;
-    thumbnails: boolean;
   };
   setClient: (client: MatrixClient, session: Session) => void;
 };
@@ -69,8 +68,7 @@ const ClientContext = createContext<ClientState | undefined>(undefined);
 
 export const ClientContextProvider = ClientContext.Provider;
 
-export const useClientState = (): ClientState | undefined =>
-  useContext(ClientContext);
+export const useClientState = (): ClientState | undefined => use(ClientContext);
 
 export function useClient(): {
   client?: MatrixClient;
@@ -250,7 +248,6 @@ export const ClientProvider: FC<Props> = ({ children }) => {
 
   const [isDisconnected, setIsDisconnected] = useState(false);
   const [supportsReactions, setSupportsReactions] = useState(false);
-  const [supportsThumbnails, setSupportsThumbnails] = useState(false);
 
   const state: ClientState | undefined = useMemo(() => {
     if (alreadyOpenedErr) {
@@ -276,7 +273,6 @@ export const ClientProvider: FC<Props> = ({ children }) => {
       disconnected: isDisconnected,
       supportedFeatures: {
         reactions: supportsReactions,
-        thumbnails: supportsThumbnails,
       },
     };
   }, [
@@ -287,7 +283,6 @@ export const ClientProvider: FC<Props> = ({ children }) => {
     setClient,
     isDisconnected,
     supportsReactions,
-    supportsThumbnails,
   ]);
 
   const onSync = useCallback(
@@ -313,8 +308,6 @@ export const ClientProvider: FC<Props> = ({ children }) => {
     }
 
     if (initClientState.widgetApi) {
-      // There is currently no widget API for authenticated media thumbnails.
-      setSupportsThumbnails(false);
       const reactSend = initClientState.widgetApi.hasCapability(
         "org.matrix.msc2762.send.event:m.reaction",
       );
@@ -336,7 +329,6 @@ export const ClientProvider: FC<Props> = ({ children }) => {
       }
     } else {
       setSupportsReactions(true);
-      setSupportsThumbnails(true);
     }
 
     return (): void => {
@@ -350,9 +342,7 @@ export const ClientProvider: FC<Props> = ({ children }) => {
     return <ErrorPage widget={widget} error={alreadyOpenedErr} />;
   }
 
-  return (
-    <ClientContext.Provider value={state}>{children}</ClientContext.Provider>
-  );
+  return <ClientContext value={state}>{children}</ClientContext>;
 };
 
 export type InitResult = {

src/ErrorView.module.css

@@ -12,6 +12,7 @@
 
 .error > h1 {
   margin: 0;
+  text-align: center;
 }
 
 .error > p {

src/ErrorView.tsx

@@ -99,7 +99,7 @@ export const ErrorView: FC<Props> = ({
   return (
     <div className={styles.error}>
       <BigIcon className={styles.icon}>
-        <Icon />
+        <Icon aria-hidden />
       </BigIcon>
       <Heading as="h1" weight="semibold" size="md">
         {title}