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Live mode - addActions didn't work with liveMode #1008

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Live mode - addActions didn't work with liveMode #1008

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4801f21
Fix that `addAction` wouldn't have any effect without a stop and star…
eoghanmurray Sep 15, 2022
9c570b6
Remove `addActions` as it has a bug-causing replacement of `this.acti…
eoghanmurray Sep 16, 2022
52bd41a
Apply formatting changes
eoghanmurray Sep 22, 2022
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4 changes: 1 addition & 3 deletions packages/rrweb/src/replay/machine.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -188,7 +188,6 @@ export function createPlayerService(
}

const syncEvents = new Array<eventWithTime>();
const actions = new Array<actionWithDelay>();
for (const event of neededEvents) {
if (
lastPlayedTimestamp &&
Expand All @@ -202,7 +201,7 @@ export function createPlayerService(
syncEvents.push(event);
} else {
const castFn = getCastFn(event, false);
actions.push({
timer.addAction({
doAction: () => {
castFn();
},
Expand All @@ -212,7 +211,6 @@ export function createPlayerService(
}
applyEventsSynchronously(syncEvents);
emitter.emit(ReplayerEvents.Flush);
timer.addActions(actions);
timer.start();
},
pause(ctx) {
Expand Down
26 changes: 14 additions & 12 deletions packages/rrweb/src/replay/timer.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -25,38 +25,40 @@ export class Timer {
this.liveMode = config.liveMode;
}
/**
* Add an action after the timer starts.
* Add an action, possibly after the timer starts.
*/
public addAction(action: actionWithDelay) {
if (
!this.actions.length ||
this.actions[this.actions.length - 1].delay <= action.delay
) {
// 'fast track'
this.actions.push(action);
return;
}
// binary search - events can arrive out of order in a realtime context
const index = this.findActionIndex(action);
this.actions.splice(index, 0, action);
}
/**
* Add all actions before the timer starts
*/
public addActions(actions: actionWithDelay[]) {
this.actions = this.actions.concat(actions);
}

public start() {
this.timeOffset = 0;
let lastTimestamp = performance.now();
const { actions } = this;
const check = () => {
const time = performance.now();
this.timeOffset += (time - lastTimestamp) * this.speed;
lastTimestamp = time;
while (actions.length) {
const action = actions[0];
while (this.actions.length) {
const action = this.actions[0];

if (this.timeOffset >= action.delay) {
actions.shift();
this.actions.shift();
action.doAction();
} else {
break;
}
}
if (actions.length > 0 || this.liveMode) {
if (this.actions.length > 0 || this.liveMode) {
this.raf = requestAnimationFrame(check);
}
};
Expand Down