angular2
Version:
Angular 2 - a web framework for modern web apps
61 lines • 8.94 kB
JavaScript
import { StringMapWrapper } from 'angular2/src/facade/collection';
import { isPresent, isFunction } from 'angular2/src/facade/lang';
import { DomAdapter } from 'angular2/src/platform/dom/dom_adapter';
import { XHRImpl } from 'angular2/src/platform/browser/xhr_impl';
/**
* Provides DOM operations in any browser environment.
*/
export class GenericBrowserDomAdapter extends DomAdapter {
constructor() {
super();
this._animationPrefix = null;
this._transitionEnd = null;
try {
var element = this.createElement('div', this.defaultDoc());
if (isPresent(this.getStyle(element, 'animationName'))) {
this._animationPrefix = '';
}
else {
var domPrefixes = ['Webkit', 'Moz', 'O', 'ms'];
for (var i = 0; i < domPrefixes.length; i++) {
if (isPresent(this.getStyle(element, domPrefixes[i] + 'AnimationName'))) {
this._animationPrefix = '-' + domPrefixes[i].toLowerCase() + '-';
break;
}
}
}
var transEndEventNames = {
WebkitTransition: 'webkitTransitionEnd',
MozTransition: 'transitionend',
OTransition: 'oTransitionEnd otransitionend',
transition: 'transitionend'
};
StringMapWrapper.forEach(transEndEventNames, (value, key) => {
if (isPresent(this.getStyle(element, key))) {
this._transitionEnd = value;
}
});
}
catch (e) {
this._animationPrefix = null;
this._transitionEnd = null;
}
}
getXHR() { return XHRImpl; }
getDistributedNodes(el) { return el.getDistributedNodes(); }
resolveAndSetHref(el, baseUrl, href) {
el.href = href == null ? baseUrl : baseUrl + '/../' + href;
}
supportsDOMEvents() { return true; }
supportsNativeShadowDOM() {
return isFunction(this.defaultDoc().body.createShadowRoot);
}
getAnimationPrefix() {
return isPresent(this._animationPrefix) ? this._animationPrefix : "";
}
getTransitionEnd() { return isPresent(this._transitionEnd) ? this._transitionEnd : ""; }
supportsAnimation() {
return isPresent(this._animationPrefix) && isPresent(this._transitionEnd);
}
}
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