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  Lotus CIandClaude Opus 5.5
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Lotus CIandClaude Opus 5.5
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Lotus CIandClaude Opus 5.5
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Lotus CIandClaude Opus 5.5
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Lotus CIandClaude Opus 5.5
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@@ -0,0 +1,80 @@
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# Lotus fork of Element Call
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This fork is embedded by [Lotus Chat](https://code.lotusguild.org/LotusGuild/cinny)
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(cinny) as the in-app call frame. Everything it adds is opt-in: without the
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URL flags and widget actions below it behaves like upstream Element Call.
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The source of truth is `src/lotus/` (the `io.lotus.*` actions are declared in
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`src/lotus/lotusActions.ts`). Keep this file in step with it: when the host and
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the fork drift, features fail silently (element-call#43, cinny#260).
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## URL flags
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The host sets these on the widget URL (cinny: `CallEmbed.getWidget`).
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| Flag | Effect |
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| ------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
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| `lotusCallState=true` | Stream call state to the host: `io.lotus.call_state` (participants, speaking, mute) and `io.lotus.mic_level`. |
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| `lotusTheme=true` | Apply the host theme; the frame's root `color-scheme` follows it. |
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| `lotusTransparent=true` | Transparent canvas so the host's wallpaper shows through. Only meaningful with `lotusTheme` (the fork applies it anyway and warns). |
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| `lotusHostControls=true` | The host draws the call bar: hide Element Call's footer and enable the host-control actions. |
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| `lotusFrameScreenshare=true` | With `lotusHostControls`: show the frame's own screenshare button, for engines without Capability Delegation (Firefox, Safari) where the host can't start a share. |
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| `lotusAudioInject=true` | Accept `io.lotus.inject_audio` (soundboard). |
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| `lotusDenoiseSource=true` | Run ML noise suppression in-source as a LiveKit audio TrackProcessor. |
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| `lotusModel=rnnoise\|speex\|dtln\|deepfilternet` | Denoise model (default `rnnoise`; falls back to `rnnoise` once if the chosen model fails). |
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| `lotusGate=true`, `lotusGateThreshold=<dB>` | Noise gate after denoise (default −45 dB). |
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| `lotusDenoiseFloor=<0..1>` | Denoise mix floor. |
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| `lotusDenoiseBase=<url>` | Where the denoise worklets / wasm / models are served (same-origin by default: `./denoise/`). |
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| `sendNotificationType=none` | Upstream param, extended: `none` sends no call-start notification at all (cinny#295; voice channels shouldn't @room-ping). |
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## Widget actions (`io.lotus.*`)
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"host → call" actions must be allow-listed in `LOTUS_TO_WIDGET_ACTIONS`.
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The table is generated from `src/lotus/lotusActions.ts`; the last column was
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checked against cinny's `lotus` branch.
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| Action | Direction | Payload / meaning | Handled by cinny (`lotus`) |
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| -------------------------------- | ----------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------- |
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| `io.lotus.call_state` | call → host | in-call per-participant speaking / mute state. NOTE: matrix-widget-api `transport.send` is request/response — the host MUST register a handler that replies/acks each one (cinny's `listenAction` does, replying `{}`). If the host has no handler, ClientWidgetApi immediately error-replies "unsupported from-widget action", so the data is silently dropped and each throttled send rejects (caught) — functional miss + log churn, not a hang. | yes |
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| `io.lotus.focus_participant` | host → call | pin/spotlight (or clear, with userId=null) a participant. | yes |
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| `io.lotus.inject_audio` | host → call | play an audio clip into the call as a separate published track. | yes |
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| `io.lotus.set_quality` | host → call | set audio/screenshare encoding quality (bitrate/framerate). | yes |
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| `io.lotus.decorations` | host → call | per-user avatar-decoration image URLs for in-call tiles. | yes |
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| `io.lotus.set_deafen` | host → call | deafen remote audio (and optionally mute screenshare audio). | yes |
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| `io.lotus.request_state` | call → host | sent on (re)registration of a lotus toWidget handler (e.g. decorations) so the host can re-push state that would otherwise only be sent on change (decorations roster, the current focus pin) after an EC-side reconnect/remount. cinny's `resendForkState()` should respond to this the same way it responds to a fresh join. | yes |
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| `io.lotus.denoise_state` | call → host | real state of the in-source denoise engine — `{ active: boolean, model: string, error?: string }` — sent once the processor attaches (or after the rnnoise fallback also fails), so the host toggle can reflect reality rather than the requested state. | **no** |
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| `io.lotus.call_summary` | call → host | one-shot end-of-call readout for the local participant — `{ durationMs, reconnects, poorMs, verdict }` (#143) — sent on SFU disconnect or in-call teardown, whichever comes first. | yes |
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| `io.lotus.set_audio_output` | host → call | select the audio output device `{ deviceId }` (#119). | yes |
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| `io.lotus.audio_output_state` | call → host | the currently selected output `{ deviceId }` (#119). | **no** |
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| `io.lotus.screenshare_notice` | call → host | local screenshare reminder `{ kind: "ended" \| "no-frames" \| "alone" }` — window closed, no frames for 15 s, or 30 min of sharing with nobody else in the call (#39). Each fires at most once per share. | yes |
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| `io.lotus.set_layout` | host → call | switch the call layout `{ layout: "grid" \| "spotlight" }` (cinny #43 — replaces the host clicking EC's hidden layout radio). | yes |
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| `io.lotus.open_settings` | host → call | open EC's settings modal, or close it with `{ open: false }`; omit `open` to toggle (cinny #43). | yes |
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| `io.lotus.toggle_reactions` | host → call | toggle the reactions / raise-hand menu (cinny #43). | yes |
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| `io.lotus.set_screenshare` | host → call | start/stop sharing `{ on?: boolean }` (omit to toggle; cinny #43). Starting calls getDisplayMedia, which needs the user's click: the host sends this with Capability Delegation (`delegate: "display-capture"`), and without it the browser rejects the share. | yes |
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| `io.lotus.set_hotkeys` | host → call | `{ codes: string[] }` — KeyboardEvent.code values (PTT, deafen) to report while focus is inside this frame (cinny #43). `[]` stops. | yes |
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| `io.lotus.set_frame_screenshare` | host → call | `{ visible: boolean }` — whether the in-frame screenshare button (`lotusFrameScreenshare`) may show, e.g. false while the room's call policy forbids screensharing (cinny #43). Defaults to visible. | yes |
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| `io.lotus.prompt_screenshare` | host → call | `{}` — show the "Share your screen?" prompt inside this frame (cinny #43). For hosts that can't delegate the user's click: the prompt's Share button is clicked here, so getDisplayMedia gets its activation. | yes |
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| `io.lotus.hotkey` | call → host | a watched key went down/up here, or this window's focus changed; see `LotusHotkeyReport` (cinny #43). | yes |
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| `io.lotus.controls_state` | call → host | `{ screensharing: boolean, layout: "grid" \| "spotlight" \| null, screenshareAction: true, hotkeys: true, frameScreenshare: false, screensharePrompt: boolean, screensharePromptOpen: boolean }` whenever either changes (cinny #43), so the host stops reading EC's DOM for them. Its arrival also tells the host this fork supports the actions above. | yes |
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| `io.lotus.mic_level` | call → host | local mic level `{ bars: 0 \| 1 \| 2 \| 3 }` (cinny #146), sent only when it changes (≤ 10 Hz); 0 while muted or with no mic. | yes |
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The two unhandled actions are covered by pending cinny PRs (#413 for
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`denoise_state`; the #310 change for `audio_output_state`).
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## Fork-only behaviour (no flag needed)
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Per-person volume memory, screenshare notices (window closed / no frames /
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sharing alone), mono mic capture, an SFU refusal reason instead of "Something
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went wrong", "Try again" for failed connects, and support for running on its
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own origin (cinny#43).
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## Releasing
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1. Merge the change into `lotus`.
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2. Bump `version` in `embedded/web/package.json` (`0.25.0-lotus.N`), commit
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`chore(lotus): 0.25.0-lotus.N` on `lotus`, and push a tag `v0.25.0-lotus.N`.
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3. CI builds the embedded bundle and, for `v*` tags, publishes
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`@lotusguild/element-call-embedded` to the Gitea npm registry
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(`https://code.lotusguild.org/api/packages/LotusGuild/npm/`).
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4. In cinny, pin the exact version in `package.json` (`npm install --save-exact
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@lotusguild/element-call-embedded@0.25.0-lotus.N`) and open a PR.
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@@ -1,6 +1,6 @@
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{
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"name": "@lotusguild/element-call-embedded",
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"version": "0.25.0-lotus.24",
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"version": "0.25.0-lotus.25",
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"files": [
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"README.md",
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"LICENSE-AGPL-3.0",
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@@ -34,6 +34,7 @@ describe("LotusWidgetActions", () => {
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LotusWidgetActions.SetHotkeys,
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LotusWidgetActions.SetFrameScreenshare,
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LotusWidgetActions.PromptScreenshare,
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LotusWidgetActions.Reconnect,
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];
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expect(new Set(LOTUS_TO_WIDGET_ACTIONS)).toEqual(new Set(expectedToWidget));
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@@ -56,5 +57,6 @@ describe("LotusWidgetActions", () => {
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);
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expect(LOTUS_TO_WIDGET_ACTIONS).not.toContain(LotusWidgetActions.MicLevel);
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expect(LOTUS_TO_WIDGET_ACTIONS).not.toContain(LotusWidgetActions.Hotkey);
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expect(LOTUS_TO_WIDGET_ACTIONS).not.toContain(LotusWidgetActions.CallError);
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});
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});
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@@ -116,6 +116,14 @@ export enum LotusWidgetActions {
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* only when it changes (≤ 10 Hz); 0 while muted or with no mic.
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*/
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MicLevel = "io.lotus.mic_level",
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/**
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* fromWidget: the call's error page is up (`{ code, recoverable }`) or
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* cleared (`{ code: null }`) (cinny #318), so the host stops showing the call
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* as joined after "Connection lost".
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*/
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CallError = "io.lotus.call_error",
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/** toWidget: press the error page's Reconnect / Try again (cinny #318). */
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Reconnect = "io.lotus.reconnect",
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}
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/** toWidget Lotus actions that must be allow-listed in `initializeWidget`. */
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@@ -133,4 +141,5 @@ export const LOTUS_TO_WIDGET_ACTIONS: LotusWidgetActions[] = [
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LotusWidgetActions.SetHotkeys,
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LotusWidgetActions.SetFrameScreenshare,
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LotusWidgetActions.PromptScreenshare,
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LotusWidgetActions.Reconnect,
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];
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@@ -11,6 +11,7 @@ import { of } from "rxjs";
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import { type CallViewModel } from "../state/CallViewModel/CallViewModel";
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import {
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canPublishSoundboard,
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MAX_INJECT_BYTES,
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parseInjectSource,
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startLotusAudioInject,
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@@ -258,3 +259,17 @@ test("parseInjectSource rejects oversized or non-buffer audio", () => {
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expect(parseInjectSource({ audio: "not bytes" })).toBeNull();
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expect(parseInjectSource({ audio: new Uint8Array(4) })).toBeNull();
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});
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test("canPublishSoundboard: refused by a microphone-only grant (EC #47)", () => {
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expect(canPublishSoundboard(undefined)).toBe(true);
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expect(
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canPublishSoundboard({ canPublish: true, canPublishSources: [] }),
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).toBe(true);
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expect(
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canPublishSoundboard({ canPublish: true, canPublishSources: [2] }),
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).toBe(false);
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expect(
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canPublishSoundboard({ canPublish: true, canPublishSources: [2, 0] }),
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).toBe(true);
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expect(canPublishSoundboard({ canPublish: false })).toBe(false);
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});
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@@ -60,6 +60,22 @@ function acquireSharedAudio(): {
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* No effect unless the host sends the action. Returns a teardown function that
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* also aborts any clip still playing.
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*/
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/**
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* Pure: whether these LiveKit permissions allow publishing the soundboard's
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* Unknown-source track (EC #47). No permissions or an empty source list
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* means unrestricted; otherwise UNKNOWN (TrackSource 0) must be allowed.
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*/
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export function canPublishSoundboard(
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perm:
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| { canPublish?: boolean; canPublishSources?: readonly number[] }
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| undefined,
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): boolean {
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if (!perm) return true;
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if (perm.canPublish === false) return false;
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const sources = perm.canPublishSources ?? [];
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return sources.length === 0 || sources.includes(0);
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}
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export function startLotusAudioInject(vm: CallViewModel): () => void {
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const w = widget;
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if (!w) return () => undefined;
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@@ -116,6 +132,19 @@ export function startLotusAudioInject(vm: CallViewModel): () => void {
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return;
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}
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// [EC #47] Clips publish as an Unknown-source track. Audio-only rooms get
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// a token limited to the microphone source, where LiveKit refuses that
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// publish *after* we replied; say so up front instead of failing silently.
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if (
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rooms.some((r) => !canPublishSoundboard(r.localParticipant.permissions))
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) {
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w.api.transport.reply(ev.detail, {
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played: false,
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reason: "not_permitted",
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});
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return;
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}
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w.api.transport.reply(ev.detail, {});
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void playInjectedClip(clip, volume, rooms, activeClips).catch((e) =>
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logger.warn("[lotus] inject_audio failed", e),
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@@ -7,7 +7,7 @@ Please see LICENSE in the repository root for full details.
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import { describe, expect, it } from "vitest";
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import { MicLevelQuantizer } from "./lotusMicLevel";
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import { MicLevelQuantizer, sameRooms } from "./lotusMicLevel";
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describe("MicLevelQuantizer", () => {
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it("maps RMS to 0–3 bars", () => {
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@@ -35,3 +35,14 @@ describe("MicLevelQuantizer", () => {
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expect(q.push(0)).toBe(0);
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});
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});
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describe("sameRooms (EC #45)", () => {
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it("compares rooms by identity and order", () => {
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const a = {};
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const b = {};
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expect(sameRooms([a, b], [a, b])).toBe(true);
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expect(sameRooms([a], [a, b])).toBe(false);
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expect(sameRooms([a, b], [b, a])).toBe(false);
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expect(sameRooms([{}], [{}])).toBe(false);
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});
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});
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@@ -46,6 +46,10 @@ const micPublication = (
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: null;
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};
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/** Pure: the same LiveKit rooms, in the same order (by identity). */
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export const sameRooms = <T>(a: readonly T[], b: readonly T[]): boolean =>
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a.length === b.length && a.every((r, i) => r === b[i]);
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const samplers = new WeakMap<
|
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CallViewModel,
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Observable<LocalMicSample | null>
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@@ -62,10 +66,15 @@ export function observeLocalMicSample$(
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const cached = samplers.get(vm);
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if (cached) return cached;
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const sampler$ = vm.allConnections$.pipe(
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map((data) => data.getConnections().map((c) => c.livekitRoom)),
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// [EC #45] allConnections$ re-emits far more often than the set of
|
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// LiveKit rooms changes; restarting the tap each time closed the
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// AudioContext ~1×/s and emitted null, which reset the muted-speech
|
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// gate so the "You're muted" nudge could never fire.
|
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distinctUntilChanged(sameRooms),
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switchMap(
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(data) =>
|
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(rooms) =>
|
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new Observable<LocalMicSample | null>((subscriber) => {
|
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const rooms = data.getConnections().map((c) => c.livekitRoom);
|
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let ctx: AudioContext | null = null;
|
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let clone: MediaStreamTrack | null = null;
|
||||
let timer: ReturnType<typeof setInterval> | undefined;
|
||||
|
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@@ -13,6 +13,7 @@ import {
|
||||
type ReactNode,
|
||||
type SVGAttributes,
|
||||
useCallback,
|
||||
useEffect,
|
||||
} from "react";
|
||||
import { Trans, useTranslation } from "react-i18next";
|
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import {
|
||||
@@ -24,6 +25,7 @@ import {
|
||||
import { Button } from "@vector-im/compound-web";
|
||||
import { logger } from "matrix-js-sdk/lib/logger";
|
||||
import { MatrixError } from "matrix-js-sdk";
|
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import { type IWidgetApiRequest } from "matrix-widget-api";
|
||||
|
||||
import {
|
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ConnectionLostError,
|
||||
@@ -38,6 +40,7 @@ import { FullScreenView } from "../FullScreenView.tsx";
|
||||
import { ErrorView } from "../ErrorView.tsx";
|
||||
import { type WidgetHelpers } from "../widget.ts";
|
||||
import styles from "../ErrorView.module.css";
|
||||
import { LotusWidgetActions, lotusSendToHost } from "../lotus/lotusWidget";
|
||||
|
||||
export type CallErrorRecoveryAction = "reconnect"; // | "retry" ;
|
||||
|
||||
@@ -74,6 +77,29 @@ const ErrorPage: FC<ErrorPageProps> = ({
|
||||
icon = ErrorSolidIcon;
|
||||
}
|
||||
|
||||
// [cinny #318] Tell the host the call dropped (it kept showing the call as
|
||||
// joined), and let its call bar press Reconnect for us.
|
||||
const recoverable =
|
||||
error instanceof ConnectionLostError ||
|
||||
error instanceof LivekitConnectionError ||
|
||||
error instanceof PeerConnectionTimeoutError;
|
||||
useEffect(() => {
|
||||
lotusSendToHost(LotusWidgetActions.CallError, {
|
||||
code: error.code,
|
||||
recoverable,
|
||||
});
|
||||
const w = widget;
|
||||
const onReconnect = (ev: CustomEvent<IWidgetApiRequest>): void => {
|
||||
w?.api.transport.reply(ev.detail, {});
|
||||
if (recoverable) void recoveryActionHandler("reconnect");
|
||||
};
|
||||
w?.lazyActions?.on(LotusWidgetActions.Reconnect, onReconnect);
|
||||
return (): void => {
|
||||
w?.lazyActions?.off(LotusWidgetActions.Reconnect, onReconnect);
|
||||
lotusSendToHost(LotusWidgetActions.CallError, { code: null });
|
||||
};
|
||||
}, [error.code, recoverable, recoveryActionHandler, widget]);
|
||||
|
||||
const actions: { label: string; onClick: () => void }[] = [];
|
||||
if (error instanceof ConnectionLostError) {
|
||||
actions.push({
|
||||
|
||||
Reference in New Issue
Block a user