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Improve google-ima shim

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Related issue:
https://github.com/uBlockOrigin/uAssets/issues/31018
This commit is contained in:
Raymond Hill 2025-12-08 10:30:41 -05:00
parent 5b95c37a46
commit 3fc281adf1
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GPG key ID: F5630CAE62A14316
1 changed files with 16 additions and 217 deletions
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233
src/web_accessible_resources/google-ima.js
View file

@ -15,10 +15,13 @@
* - Corrected typo in `UniversalAdIdInfo.getAdIdValue()` method name
* - Corrected dispatch of LOAD event when preloading is enabled
* - Corrected dispatch of CONTENT_PAUSE/RESUME_REQUESTED events
* - Remove test for auto-play in requestAds(): always behave as if auto-play
* is disabled
*
* Related issue:
* - https://github.com/uBlockOrigin/uBlock-issues/issues/2158
* - https://github.com/uBlockOrigin/uAssets/issues/30134
* - https://github.com/uBlockOrigin/uAssets/issues/31018
*
**/
@ -39,204 +42,6 @@
if (!window.google || !window.google.ima || !window.google.ima.VERSION) {
const VERSION = "3.517.2";
const CheckCanAutoplay = (function() {
// Sourced from: https://searchfox.org/mozilla-central/source/dom/media/gtest/negative_duration.mp4
const TEST_VIDEO = new Blob(
[
new Uint32Array([
469762048,
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0,
913273705,
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828601953,
-1878917120,
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1684567661,
0,
0,
0,
-402456576,
0,
256,
1,
0,
0,
256,
0,
0,
0,
256,
0,
0,
0,
64,
0,
0,
0,
0,
0,
0,
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-201261056,
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1684564852,
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0,
0,
0,
0,
16777216,
0,
-1,
-1,
0,
0,
0,
0,
256,
0,
0,
0,
256,
0,
0,
0,
64,
5,
53250,
-2080309248,
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738197504,
1684563053,
1,
0,
0,
0,
0,
-2137614336,
-1,
-1,
50261,
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0,
0,
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0,
0,
0,
1701079382,
1851869295,
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16777216,
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102,
1752004116,
100,
1,
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0,
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102,
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102,
0,
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100,
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0,
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16777216,
0,
0,
0,
]),
],
{ type: "video/mp4" }
);
let testVideo;
return function() {
if (!testVideo) {
testVideo = document.createElement("video");
testVideo.style =
"position:absolute; width:0; height:0; left:0; right:0; z-index:-1; border:0";
testVideo.setAttribute("muted", "muted");
testVideo.setAttribute("playsinline", "playsinline");
testVideo.src = URL.createObjectURL(TEST_VIDEO);
document.body.appendChild(testVideo);
}
return testVideo.play();
};
})();
const ima = {};
class AdDisplayContainer {
@ -390,26 +195,20 @@ if (!window.google || !window.google.ima || !window.google.ima.VERSION) {
return VERSION;
}
requestAds(_r, _c) {
// If autoplay is disabled and the page is trying to autoplay a tracking
// ad, then IMA fails with an error, and the page is expected to request
// ads again later when the user clicks to play.
CheckCanAutoplay().then(
() => {
const { ADS_MANAGER_LOADED } = AdsManagerLoadedEvent.Type;
this._dispatch(new ima.AdsManagerLoadedEvent(ADS_MANAGER_LOADED, _r, _c));
},
() => {
const e = new ima.AdError(
"adPlayError",
1205,
1205,
"The browser prevented playback initiated without user interaction.",
_r,
_c
);
this._dispatch(new ima.AdErrorEvent(e));
}
requestAnimationFrame(() => {
const { ADS_MANAGER_LOADED } = AdsManagerLoadedEvent.Type;
const event = new ima.AdsManagerLoadedEvent(ADS_MANAGER_LOADED, _r, _c);
this._dispatch(event);
});
const error = new ima.AdError(
"adPlayError",
1205, 1205,
"The browser prevented playback initiated without user interaction.",
_r, _c
);
requestAnimationFrame( () => {
this._dispatch(new ima.AdErrorEvent(error));
});
}
}