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fix(platform-browser): prevent clobbered elements from freezing the browser

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4f69d38f09
This commit is contained in:
Victor Berchet
2017-03-14 17:15:46 -07:00
committed by Chuck Jazdzewski
parent 52bbc9baf4
commit a4076c70cc
6 changed files with 58 additions and 5 deletions
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9
packages/platform-browser/src/browser/browser_adapter.ts
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@ -61,6 +61,14 @@ const _chromeNumKeyPadMap = {
'\x90': 'NumLock'
};
let nodeContains: (a: any, b: any) => boolean;
if (global['Node']) {
nodeContains = global['Node'].prototype.contains || function(node) {
return !!(this.compareDocumentPosition(node) & 16);
};
}
/**
* A `DomAdapter` powered by full browser DOM APIs.
*
@ -107,6 +115,7 @@ export class BrowserDomAdapter extends GenericBrowserDomAdapter {
get attrToPropMap(): any { return _attrToPropMap; }
contains(nodeA: any, nodeB: any): boolean { return nodeContains.call(nodeA, nodeB); }
querySelector(el: Element, selector: string): any { return el.querySelector(selector); }
querySelectorAll(el: any, selector: string): any[] { return el.querySelectorAll(selector); }
on(el: Node, evt: any, listener: any) { el.addEventListener(evt, listener, false); }