angular2
Version:
Angular 2 - a web framework for modern web apps
74 lines • 8.96 kB
JavaScript
;var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var di_1 = require('angular2/src/core/di');
var math_1 = require('angular2/src/facade/math');
var dom_adapter_1 = require('angular2/src/platform/dom/dom_adapter');
var BrowserDetails = (function () {
function BrowserDetails() {
this.elapsedTimeIncludesDelay = false;
this.doesElapsedTimeIncludesDelay();
}
/**
* Determines if `event.elapsedTime` includes transition delay in the current browser. At this
* time, Chrome and Opera seem to be the only browsers that include this.
*/
BrowserDetails.prototype.doesElapsedTimeIncludesDelay = function () {
var _this = this;
var div = dom_adapter_1.DOM.createElement('div');
dom_adapter_1.DOM.setAttribute(div, 'style', "position: absolute; top: -9999px; left: -9999px; width: 1px;\n height: 1px; transition: all 1ms linear 1ms;");
// Firefox requires that we wait for 2 frames for some reason
this.raf(function (timestamp) {
dom_adapter_1.DOM.on(div, 'transitionend', function (event) {
var elapsed = math_1.Math.round(event.elapsedTime * 1000);
_this.elapsedTimeIncludesDelay = elapsed == 2;
dom_adapter_1.DOM.remove(div);
});
dom_adapter_1.DOM.setStyle(div, 'width', '2px');
}, 2);
};
BrowserDetails.prototype.raf = function (callback, frames) {
if (frames === void 0) { frames = 1; }
var queue = new RafQueue(callback, frames);
return function () { return queue.cancel(); };
};
BrowserDetails = __decorate([
di_1.Injectable(),
__metadata('design:paramtypes', [])
], BrowserDetails);
return BrowserDetails;
})();
exports.BrowserDetails = BrowserDetails;
var RafQueue = (function () {
function RafQueue(callback, frames) {
this.callback = callback;
this.frames = frames;
this._raf();
}
RafQueue.prototype._raf = function () {
var _this = this;
this.currentFrameId =
dom_adapter_1.DOM.requestAnimationFrame(function (timestamp) { return _this._nextFrame(timestamp); });
};
RafQueue.prototype._nextFrame = function (timestamp) {
this.frames--;
if (this.frames > 0) {
this._raf();
}
else {
this.callback(timestamp);
}
};
RafQueue.prototype.cancel = function () {
dom_adapter_1.DOM.cancelAnimationFrame(this.currentFrameId);
this.currentFrameId = null;
};
return RafQueue;
})();
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