mirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/mozilla/pdf.js.git synced 2025-04-22 16:18:08 +02:00
Code Activity

Catch, and propagate, errors in the requestAnimationFrame branch of InternalRenderTask._scheduleNext

Browse source 
To support these changes, `InternalRenderTask._next` now returns a Promise.
This commit is contained in:
Jonas Jenwald 2018-06-13 11:01:58 +02:00
parent 2030d1718f
commit 778981ec89
1 changed files with 21 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

38
src/display/api.js
View file

@ -2455,30 +2455,34 @@ var InternalRenderTask = (function InternalRenderTaskClosure() {
_scheduleNext: function InternalRenderTask__scheduleNext() {
if (this.useRequestAnimationFrame && typeof window !== 'undefined') {
window.requestAnimationFrame(this._nextBound);
window.requestAnimationFrame(() => {
this._nextBound().catch(this.callback);
});
} else {
Promise.resolve().then(this._nextBound).catch(this.callback);
}
},
_next: function InternalRenderTask__next() {
if (this.cancelled) {
return;
}
this.operatorListIdx = this.gfx.executeOperatorList(this.operatorList,
this.operatorListIdx,
this._continueBound,
this.stepper);
if (this.operatorListIdx === this.operatorList.argsArray.length) {
this.running = false;
if (this.operatorList.lastChunk) {
this.gfx.endDrawing();
if (this._canvas) {
canvasInRendering.delete(this._canvas);
}
this.callback();
return new Promise(() => {
if (this.cancelled) {
return;
}
}
this.operatorListIdx = this.gfx.executeOperatorList(this.operatorList,
this.operatorListIdx,
this._continueBound,
this.stepper);
if (this.operatorListIdx === this.operatorList.argsArray.length) {
this.running = false;
if (this.operatorList.lastChunk) {
this.gfx.endDrawing();
if (this._canvas) {
canvasInRendering.delete(this._canvas);
}
this.callback();
}
}
});
},
};