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Bug 1184804 - Wait for DECODE_COMPLETE to be fired in browser_bug666317.js. r=tn

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This commit is contained in:
Seth Fowler 2015-07-16 20:32:24 -07:00
parent aa41d37da1
commit 25f92aa6d8
1 changed files with 15 additions and 10 deletions
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25
image/test/browser/browser_bug666317.js
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@ -14,7 +14,11 @@ var gWaitingForDiscard = false;
var gScriptedObserver;
var gClonedRequest;
function ImageDiscardObserver(callback) {
function ImageObserver(decodeCallback, discardCallback) {
this.decodeComplete = function onDecodeComplete(aRequest) {
decodeCallback();
}
this.discard = function onDiscard(request)
{
if (!gWaitingForDiscard) {
@ -22,7 +26,7 @@ function ImageDiscardObserver(callback) {
}
this.synchronous = false;
callback();
discardCallback();
}
this.synchronous = true;
@ -37,7 +41,7 @@ function currentRequest() {
function isImgDecoded() {
let request = currentRequest();
return request.imageStatus & Ci.imgIRequest.STATUS_FRAME_COMPLETE ? true : false;
return request.imageStatus & Ci.imgIRequest.STATUS_DECODE_COMPLETE ? true : false;
}
// Ensure that the image is decoded by drawing it to a canvas.
@ -82,8 +86,10 @@ function test() {
}
function step2() {
// Create the discard observer.
var observer = new ImageDiscardObserver(() => runAfterAsyncEvents(step5));
// Create the image observer.
var observer =
new ImageObserver(() => runAfterAsyncEvents(step3), // DECODE_COMPLETE
() => runAfterAsyncEvents(step5)); // DISCARD
gScriptedObserver = Cc["@mozilla.org/image/tools;1"]
.getService(Ci.imgITools)
.createScriptedObserver(observer);
@ -95,9 +101,8 @@ function step2() {
// Check that the image is decoded.
forceDecodeImg();
// The FRAME_COMPLETE notification is delivered asynchronously, so continue
// after we're sure it has been delivered.
runAfterAsyncEvents(step3);
// The DECODE_COMPLETE notification is delivered asynchronously. ImageObserver will
// eventually call step3.
}
function step3() {
@ -118,8 +123,8 @@ function step4() {
.getService(Ci.nsIObserverService);
os.notifyObservers(null, 'memory-pressure', 'heap-minimize');
// The DISCARD notification is delivered asynchronously. ImageDiscardObserver
// will eventually call step5. (Or else, sadly, the test will time out.)
// The DISCARD notification is delivered asynchronously. ImageObserver will
// eventually call step5. (Or else, sadly, the test will time out.)
}
function step5() {