animationFrameProvider.js•1.6 kB
import { __read, __spreadArray } from "tslib";
import { Subscription } from '../Subscription';
export var animationFrameProvider = {
schedule: function (callback) {
var request = requestAnimationFrame;
var cancel = cancelAnimationFrame;
var delegate = animationFrameProvider.delegate;
if (delegate) {
request = delegate.requestAnimationFrame;
cancel = delegate.cancelAnimationFrame;
}
var handle = request(function (timestamp) {
cancel = undefined;
callback(timestamp);
});
return new Subscription(function () { return cancel === null || cancel === void 0 ? void 0 : cancel(handle); });
},
requestAnimationFrame: function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
var delegate = animationFrameProvider.delegate;
return ((delegate === null || delegate === void 0 ? void 0 : delegate.requestAnimationFrame) || requestAnimationFrame).apply(void 0, __spreadArray([], __read(args)));
},
cancelAnimationFrame: function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
var delegate = animationFrameProvider.delegate;
return ((delegate === null || delegate === void 0 ? void 0 : delegate.cancelAnimationFrame) || cancelAnimationFrame).apply(void 0, __spreadArray([], __read(args)));
},
delegate: undefined,
};
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