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Merge pull request #8222 from tjgrathwell/ios-fake-cancel-animation-frame

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ios: Patch cancelAnimationFrame whenever fakeRequestAnimationFrame is used
This commit is contained in:
Yury Delendik 2017-04-04 10:29:04 -05:00 committed by GitHub
commit b665b0319a
1 changed files with 12 additions and 5 deletions
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17
src/shared/compatibility.js
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@ -643,8 +643,13 @@ PDFJS.compatibilityChecked = true;
// Support: IE<10, Android<4.0, iOS
(function checkRequestAnimationFrame() {
function fakeRequestAnimationFrame(callback) {
window.setTimeout(callback, 20);
function installFakeAnimationFrameFunctions() {
window.requestAnimationFrame = function (callback) {
return window.setTimeout(callback, 20);
};
window.cancelAnimationFrame = function (timeoutID) {
window.clearTimeout(timeoutID);
};
}
if (!hasDOM) {
@ -652,7 +657,7 @@ PDFJS.compatibilityChecked = true;
}
if (isIOS) {
// requestAnimationFrame on iOS is broken, replacing with fake one.
window.requestAnimationFrame = fakeRequestAnimationFrame;
installFakeAnimationFrameFunctions();
return;
}
if ('requestAnimationFrame' in window) {
@ -660,8 +665,10 @@ PDFJS.compatibilityChecked = true;
}
window.requestAnimationFrame =
window.mozRequestAnimationFrame ||
window.webkitRequestAnimationFrame ||
fakeRequestAnimationFrame;
window.webkitRequestAnimationFrame;
if (!('requestAnimationFrame' in window)) {
installFakeAnimationFrameFunctions();
}
})();
// Support: Android, iOS