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Merge pull request #5871 from matrix-org/travis/voice/countdown

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Limit voice recording length
This commit is contained in:
Travis Ralston 2021-04-19 10:30:38 -06:00 committed by GitHub
commit 01fc88f88a
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GPG key ID: 4AEE18F83AFDEB23
9 changed files with 372 additions and 33 deletions
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2
src/components/views/elements/Field.tsx
View file

@ -262,7 +262,7 @@ export default class Field extends React.PureComponent<PropShapes, IState> {
tooltipClassName={classNames("mx_Field_tooltip", tooltipClassName)}
visible={(this.state.focused && this.props.forceTooltipVisible) || this.state.feedbackVisible}
label={tooltipContent || this.state.feedback}
forceOnRight
alignment={Tooltip.Alignment.Right}
/>;
}

6
src/components/views/elements/InfoTooltip.tsx
View file

@ -18,8 +18,8 @@ limitations under the License.
import React from 'react';
import classNames from 'classnames';
import Tooltip from './Tooltip';
import { _t } from "../../../languageHandler";
import Tooltip, {Alignment} from './Tooltip';
import {_t} from "../../../languageHandler";
import {replaceableComponent} from "../../../utils/replaceableComponent";
interface ITooltipProps {
@ -61,7 +61,7 @@ export default class InfoTooltip extends React.PureComponent<ITooltipProps, ISta
className="mx_InfoTooltip_container"
tooltipClassName={classNames("mx_InfoTooltip_tooltip", tooltipClassName)}
label={tooltip || title}
forceOnRight={true}
alignment={Alignment.Right}
/> : <div />;
return (
<div onMouseOver={this.onMouseOver} onMouseLeave={this.onMouseLeave} className="mx_InfoTooltip">

48
src/components/views/elements/Tooltip.tsx
View file

@ -25,6 +25,14 @@ import {replaceableComponent} from "../../../utils/replaceableComponent";
const MIN_TOOLTIP_HEIGHT = 25;
export enum Alignment {
Natural, // Pick left or right
Left,
Right,
Top, // Centered
Bottom, // Centered
}
interface IProps {
// Class applied to the element used to position the tooltip
className?: string;
@ -36,7 +44,7 @@ interface IProps {
visible?: boolean;
// the react element to put into the tooltip
label: React.ReactNode;
forceOnRight?: boolean;
alignment?: Alignment; // defaults to Natural
yOffset?: number;
}
@ -46,10 +54,14 @@ export default class Tooltip extends React.Component<IProps> {
private tooltip: void | Element | Component<Element, any, any>;
private parent: Element;
// XXX: This is because some components (Field) are unable to `import` the Tooltip class,
// so we expose the Alignment options off of us statically.
public static readonly Alignment = Alignment;
public static readonly defaultProps = {
visible: true,
yOffset: 0,
alignment: Alignment.Natural,
};
// Create a wrapper for the tooltip outside the parent and attach it to the body element
@ -86,11 +98,35 @@ export default class Tooltip extends React.Component<IProps> {
offset = Math.floor(parentBox.height - MIN_TOOLTIP_HEIGHT);
}
style.top = (parentBox.top - 2 + this.props.yOffset) + window.pageYOffset + offset;
if (!this.props.forceOnRight && parentBox.right > window.innerWidth / 2) {
style.right = window.innerWidth - parentBox.right - window.pageXOffset - 16;
} else {
style.left = parentBox.right + window.pageXOffset + 6;
const baseTop = (parentBox.top - 2 + this.props.yOffset) + window.pageYOffset;
const top = baseTop + offset;
const right = window.innerWidth - parentBox.right - window.pageXOffset - 16;
const left = parentBox.right + window.pageXOffset + 6;
const horizontalCenter = parentBox.right - window.pageXOffset - (parentBox.width / 2);
switch (this.props.alignment) {
case Alignment.Natural:
if (parentBox.right > window.innerWidth / 2) {
style.right = right;
style.top = top;
break;
}
// fall through to Right
case Alignment.Right:
style.left = left;
style.top = top;
break;
case Alignment.Left:
style.right = right;
style.top = top;
break;
case Alignment.Top:
style.top = baseTop - 16;
style.left = horizontalCenter;
break;
case Alignment.Bottom:
style.top = baseTop + parentBox.height;
style.left = horizontalCenter;
break;
}
return style;

25
src/components/views/rooms/MessageComposer.js
View file

@ -33,6 +33,8 @@ import {UPDATE_EVENT} from "../../../stores/AsyncStore";
import {replaceableComponent} from "../../../utils/replaceableComponent";
import VoiceRecordComposerTile from "./VoiceRecordComposerTile";
import {VoiceRecordingStore} from "../../../stores/VoiceRecordingStore";
import {RecordingState} from "../../../voice/VoiceRecording";
import Tooltip, {Alignment} from "../elements/Tooltip";
function ComposerAvatar(props) {
const MemberStatusMessageAvatar = sdk.getComponent('avatars.MemberStatusMessageAvatar');
@ -185,6 +187,7 @@ export default class MessageComposer extends React.Component {
canSendMessages: this.props.room.maySendMessage(),
isComposerEmpty: true,
haveRecording: false,
recordingTimeLeftSeconds: null, // when set to a number, shows a toast
};
}
@ -315,7 +318,17 @@ export default class MessageComposer extends React.Component {
}
_onVoiceStoreUpdate = () => {
this.setState({haveRecording: !!VoiceRecordingStore.instance.activeRecording});
const recording = VoiceRecordingStore.instance.activeRecording;
this.setState({haveRecording: !!recording});
if (recording) {
// We show a little heads up that the recording is about to automatically end soon. The 3s
// display time is completely arbitrary. Note that we don't need to deregister the listener
// because the recording instance will clean that up for us.
recording.on(RecordingState.EndingSoon, ({secondsLeft}) => {
this.setState({recordingTimeLeftSeconds: secondsLeft});
setTimeout(() => this.setState({recordingTimeLeftSeconds: null}), 3000);
});
}
};
render() {
@ -396,8 +409,18 @@ export default class MessageComposer extends React.Component {
);
}
let recordingTooltip;
const secondsLeft = Math.round(this.state.recordingTimeLeftSeconds);
if (secondsLeft) {
recordingTooltip = <Tooltip
label={_t("%(seconds)ss left", {seconds: secondsLeft})}
alignment={Alignment.Top} yOffset={-50}
/>;
}
return (
<div className="mx_MessageComposer mx_GroupLayout">
{recordingTooltip}
<div className="mx_MessageComposer_wrapper">
<ReplyPreview permalinkCreator={this.props.permalinkCreator} />
<div className="mx_MessageComposer_row">

1
src/i18n/strings/en_EN.json
View file

@ -1474,6 +1474,7 @@
"The conversation continues here.": "The conversation continues here.",
"This room has been replaced and is no longer active.": "This room has been replaced and is no longer active.",
"You do not have permission to post to this room": "You do not have permission to post to this room",
"%(seconds)ss left": "%(seconds)ss left",
"Bold": "Bold",
"Italics": "Italics",
"Strikethrough": "Strikethrough",

4
src/stores/VoiceRecordingStore.ts
View file

@ -73,9 +73,7 @@ export class VoiceRecordingStore extends AsyncStoreWithClient<IState> {
*/
public disposeRecording(): Promise<void> {
if (this.state.recording) {
// Stop for good measure, but completely async because we're not concerned with this
// passing or failing.
this.state.recording.stop().catch(e => console.error("Error stopping recording", e));
this.state.recording.destroy(); // stops internally
}
return this.updateState({recording: null});
}

126
src/utils/Singleflight.ts Normal file
View file

@ -0,0 +1,126 @@
/*
Copyright 2021 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import {EnhancedMap} from "./maps";
// Inspired by https://pkg.go.dev/golang.org/x/sync/singleflight
const keyMap = new EnhancedMap<Object, EnhancedMap<string, unknown>>();
/**
* Access class to get a singleflight context. Singleflights execute a
* function exactly once, unless instructed to forget about a result.
*
* Typically this is used to de-duplicate an action, such as a save button
* being pressed, without having to track state internally for an operation
* already being in progress. This doesn't expose a flag which can be used
* to disable a button, however it would be capable of returning a Promise
* from the first call.
*
* The result of the function call is cached indefinitely, just in case a
* second call comes through late. There are various functions named "forget"
* to have the cache be cleared of a result.
*
* Singleflights in our usecase are tied to an instance of something, combined
* with a string key to differentiate between multiple possible actions. This
* means that a "save" key will be scoped to the instance which defined it and
* not leak between other instances. This is done to avoid having to concatenate
* variables to strings to essentially namespace the field, for most cases.
*/
export class Singleflight {
private constructor() {
}
/**
* A void marker to help with returning a value in a singleflight context.
* If your code doesn't return anything, return this instead.
*/
public static Void = Symbol("void");
/**
* Acquire a singleflight context.
* @param {Object} instance An instance to associate the context with. Can be any object.
* @param {string} key A string key relevant to that instance to namespace under.
* @returns {SingleflightContext} Returns the context to execute the function.
*/
public static for(instance: Object, key: string): SingleflightContext {
if (!instance || !key) throw new Error("An instance and key must be supplied");
return new SingleflightContext(instance, key);
}
/**
* Forgets all results for a given instance.
* @param {Object} instance The instance to forget about.
*/
public static forgetAllFor(instance: Object) {
keyMap.delete(instance);
}
/**
* Forgets all cached results for all instances. Intended for use by tests.
*/
public static forgetAll() {
for (const k of keyMap.keys()) {
keyMap.remove(k);
}
}
}
class SingleflightContext {
public constructor(private instance: Object, private key: string) {
}
/**
* Forget this particular instance and key combination, discarding the result.
*/
public forget() {
const map = keyMap.get(this.instance);
if (!map) return;
map.remove(this.key);
if (!map.size) keyMap.remove(this.instance);
}
/**
* Execute a function. If a result is already known, that will be returned instead
* of executing the provided function. However, if no result is known then the function
* will be called, with its return value cached. The function must return a value
* other than `undefined` - take a look at Singleflight.Void if you don't have a return
* to make.
*
* Note that this technically allows the caller to provide a different function each time:
* this is largely considered a bad idea and should not be done. Singleflights work off the
* premise that something needs to happen once, so duplicate executions will be ignored.
*
* For ideal performance and behaviour, functions which return promises are preferred. If
* a function is not returning a promise, it should return as soon as possible to avoid a
* second call potentially racing it. The promise returned by this function will be that
* of the first execution of the function, even on duplicate calls.
* @param {Function} fn The function to execute.
* @returns The recorded value.
*/
public do<T>(fn: () => T): T {
const map = keyMap.getOrCreate(this.instance, new EnhancedMap<string, unknown>());
// We have to manually getOrCreate() because we need to execute the fn
let val = <T>map.get(this.key);
if (val === undefined) {
val = fn();
map.set(this.key, val);
}
return val;
}
}

78
src/voice/VoiceRecording.ts
View file

@ -20,17 +20,30 @@ import {MatrixClient} from "matrix-js-sdk/src/client";
import CallMediaHandler from "../CallMediaHandler";
import {SimpleObservable} from "matrix-widget-api";
import {clamp} from "../utils/numbers";
import EventEmitter from "events";
import {IDestroyable} from "../utils/IDestroyable";
import {Singleflight} from "../utils/Singleflight";
const CHANNELS = 1; // stereo isn't important
const SAMPLE_RATE = 48000; // 48khz is what WebRTC uses. 12khz is where we lose quality.
const BITRATE = 24000; // 24kbps is pretty high quality for our use case in opus.
const TARGET_MAX_LENGTH = 120; // 2 minutes in seconds. Somewhat arbitrary, though longer == larger files.
const TARGET_WARN_TIME_LEFT = 10; // 10 seconds, also somewhat arbitrary.
export interface IRecordingUpdate {
waveform: number[]; // floating points between 0 (low) and 1 (high).
timeSeconds: number; // float
}
export class VoiceRecording {
export enum RecordingState {
Started = "started",
EndingSoon = "ending_soon", // emits an object with a single numerical value: secondsLeft
Ended = "ended",
Uploading = "uploading",
Uploaded = "uploaded",
}
export class VoiceRecording extends EventEmitter implements IDestroyable {
private recorder: Recorder;
private recorderContext: AudioContext;
private recorderSource: MediaStreamAudioSourceNode;
@ -43,6 +56,7 @@ export class VoiceRecording {
private observable: SimpleObservable<IRecordingUpdate>;
public constructor(private client: MatrixClient) {
super();
}
private async makeRecorder() {
@ -124,7 +138,7 @@ export class VoiceRecording {
return this.mxc;
}
private tryUpdateLiveData = (ev: AudioProcessingEvent) => {
private processAudioUpdate = (ev: AudioProcessingEvent) => {
if (!this.recording) return;
// The time domain is the input to the FFT, which means we use an array of the same
@ -150,6 +164,19 @@ export class VoiceRecording {
waveform: translatedData,
timeSeconds: ev.playbackTime,
});
// Now that we've updated the data/waveform, let's do a time check. We don't want to
// go horribly over the limit. We also emit a warning state if needed.
const secondsLeft = TARGET_MAX_LENGTH - ev.playbackTime;
if (secondsLeft <= 0) {
// noinspection JSIgnoredPromiseFromCall - we aren't concerned with it overlapping
this.stop();
} else if (secondsLeft <= TARGET_WARN_TIME_LEFT) {
Singleflight.for(this, "ending_soon").do(() => {
this.emit(RecordingState.EndingSoon, {secondsLeft});
return Singleflight.Void;
});
}
};
public async start(): Promise<void> {
@ -164,33 +191,44 @@ export class VoiceRecording {
}
this.observable = new SimpleObservable<IRecordingUpdate>();
await this.makeRecorder();
this.recorderProcessor.addEventListener("audioprocess", this.tryUpdateLiveData);
this.recorderProcessor.addEventListener("audioprocess", this.processAudioUpdate);
await this.recorder.start();
this.recording = true;
this.emit(RecordingState.Started);
}
public async stop(): Promise<Uint8Array> {
if (!this.recording) {
throw new Error("No recording to stop");
}
return Singleflight.for(this, "stop").do(async () => {
if (!this.recording) {
throw new Error("No recording to stop");
}
// Disconnect the source early to start shutting down resources
this.recorderSource.disconnect();
await this.recorder.stop();
// Disconnect the source early to start shutting down resources
this.recorderSource.disconnect();
await this.recorder.stop();
// close the context after the recorder so the recorder doesn't try to
// connect anything to the context (this would generate a warning)
await this.recorderContext.close();
// close the context after the recorder so the recorder doesn't try to
// connect anything to the context (this would generate a warning)
await this.recorderContext.close();
// Now stop all the media tracks so we can release them back to the user/OS
this.recorderStream.getTracks().forEach(t => t.stop());
// Now stop all the media tracks so we can release them back to the user/OS
this.recorderStream.getTracks().forEach(t => t.stop());
// Finally do our post-processing and clean up
this.recording = false;
this.recorderProcessor.removeEventListener("audioprocess", this.tryUpdateLiveData);
await this.recorder.close();
// Finally do our post-processing and clean up
this.recording = false;
this.recorderProcessor.removeEventListener("audioprocess", this.processAudioUpdate);
await this.recorder.close();
this.emit(RecordingState.Ended);
return this.buffer;
return this.buffer;
});
}
public destroy() {
// noinspection JSIgnoredPromiseFromCall - not concerned about stop() being called async here
this.stop();
this.removeAllListeners();
Singleflight.forgetAllFor(this);
}
public async upload(): Promise<string> {
@ -200,11 +238,13 @@ export class VoiceRecording {
if (this.mxc) return this.mxc;
this.emit(RecordingState.Uploading);
this.mxc = await this.client.uploadContent(new Blob([this.buffer], {
type: "audio/ogg",
}), {
onlyContentUri: false, // to stop the warnings in the console
}).then(r => r['content_uri']);
this.emit(RecordingState.Uploaded);
return this.mxc;
}
}

115
test/Singleflight-test.ts Normal file
View file

@ -0,0 +1,115 @@
/*
Copyright 2021 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import {Singleflight} from "../src/utils/Singleflight";
describe('Singleflight', () => {
afterEach(() => {
Singleflight.forgetAll();
});
it('should throw for bad context variables', () => {
const permutations: [Object, string][] = [
[null, null],
[{}, null],
[null, "test"],
];
for (const p of permutations) {
try {
Singleflight.for(p[0], p[1]);
// noinspection ExceptionCaughtLocallyJS
throw new Error("failed to fail: " + JSON.stringify(p));
} catch (e) {
expect(e.message).toBe("An instance and key must be supplied");
}
}
});
it('should execute the function once', () => {
const instance = {};
const key = "test";
const val = {}; // unique object for reference check
const fn = jest.fn().mockReturnValue(val);
const sf = Singleflight.for(instance, key);
const r1 = sf.do(fn);
expect(r1).toBe(val);
expect(fn.mock.calls.length).toBe(1);
const r2 = sf.do(fn);
expect(r2).toBe(val);
expect(fn.mock.calls.length).toBe(1);
});
it('should execute the function once, even with new contexts', () => {
const instance = {};
const key = "test";
const val = {}; // unique object for reference check
const fn = jest.fn().mockReturnValue(val);
let sf = Singleflight.for(instance, key);
const r1 = sf.do(fn);
expect(r1).toBe(val);
expect(fn.mock.calls.length).toBe(1);
sf = Singleflight.for(instance, key); // RESET FOR TEST
const r2 = sf.do(fn);
expect(r2).toBe(val);
expect(fn.mock.calls.length).toBe(1);
});
it('should execute the function twice if the result was forgotten', () => {
const instance = {};
const key = "test";
const val = {}; // unique object for reference check
const fn = jest.fn().mockReturnValue(val);
const sf = Singleflight.for(instance, key);
const r1 = sf.do(fn);
expect(r1).toBe(val);
expect(fn.mock.calls.length).toBe(1);
sf.forget();
const r2 = sf.do(fn);
expect(r2).toBe(val);
expect(fn.mock.calls.length).toBe(2);
});
it('should execute the function twice if the instance was forgotten', () => {
const instance = {};
const key = "test";
const val = {}; // unique object for reference check
const fn = jest.fn().mockReturnValue(val);
const sf = Singleflight.for(instance, key);
const r1 = sf.do(fn);
expect(r1).toBe(val);
expect(fn.mock.calls.length).toBe(1);
Singleflight.forgetAllFor(instance);
const r2 = sf.do(fn);
expect(r2).toBe(val);
expect(fn.mock.calls.length).toBe(2);
});
it('should execute the function twice if everything was forgotten', () => {
const instance = {};
const key = "test";
const val = {}; // unique object for reference check
const fn = jest.fn().mockReturnValue(val);
const sf = Singleflight.for(instance, key);
const r1 = sf.do(fn);
expect(r1).toBe(val);
expect(fn.mock.calls.length).toBe(1);
Singleflight.forgetAll();
const r2 = sf.do(fn);
expect(r2).toBe(val);
expect(fn.mock.calls.length).toBe(2);
});
});