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Adds thread abort capabilities.

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This commit is contained in:
Yury Delendik 2015-10-20 20:50:32 -05:00
parent 59c13b32aa
commit 58c3ea0820
6 changed files with 186 additions and 53 deletions
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15
src/display/api.js
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@ -883,15 +883,20 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
this.destroyed = true;
this.transport.pageCache[this.pageIndex] = null;
var waitOn = [];
Object.keys(this.intentStates).forEach(function(intent) {
var intentState = this.intentStates[intent];
intentState.renderTasks.forEach(function(renderTask) {
var renderCompleted = renderTask.capability.promise.
catch(function () {}); // ignoring failures
waitOn.push(renderCompleted);
renderTask.cancel();
});
}, this);
this.objs.clear();
this.annotationsPromise = null;
this.pendingCleanup = false;
return Promise.all(waitOn);
},
/**
@ -1054,15 +1059,21 @@ var WorkerTransport = (function WorkerTransportClosure() {
this.destroyed = true;
this.destroyCapability = createPromiseCapability();
var waitOn = [];
// We need to wait for all renderings to be completed, e.g.
// timeout/rAF can take a long time.
this.pageCache.forEach(function (page) {
if (page) {
page._destroy();
waitOn.push(page._destroy());
}
});
this.pageCache = [];
this.pagePromises = [];
var self = this;
this.messageHandler.sendWithPromise('Terminate', null).then(function () {
// We also need to wait for the worker to finish its long running tasks.
var terminated = this.messageHandler.sendWithPromise('Terminate', null);
waitOn.push(terminated);
Promise.all(waitOn).then(function () {
FontLoader.clear();
if (self.worker) {
self.worker.terminate();