/
testability.ts
88 lines (74 loc) 路 2.89 KB
/
testability.ts
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import {Map, MapWrapper, ListWrapper} from 'angular2/src/facade/collection';
import {CONST, CONST_EXPR, global, isPresent} from 'angular2/src/facade/lang';
import {BaseException, WrappedException} from 'angular2/src/facade/exceptions';
import {PromiseWrapper, ObservableWrapper} from 'angular2/src/facade/async';
import {DOM} from 'angular2/src/platform/dom/dom_adapter';
import {
Injectable,
TestabilityRegistry,
Testability,
GetTestability,
setTestabilityGetter
} from 'angular2/core';
class PublicTestability {
/** @internal */
_testability: Testability;
constructor(testability: Testability) { this._testability = testability; }
isStable(): boolean { return this._testability.isStable(); }
whenStable(callback: Function) { this._testability.whenStable(callback); }
findBindings(using: any, provider: string, exactMatch: boolean): any[] {
return this.findProviders(using, provider, exactMatch);
}
findProviders(using: any, provider: string, exactMatch: boolean): any[] {
return this._testability.findBindings(using, provider, exactMatch);
}
}
export class BrowserGetTestability implements GetTestability {
static init() { setTestabilityGetter(new BrowserGetTestability()); }
addToWindow(registry: TestabilityRegistry): void {
global.getAngularTestability = (elem: any, findInAncestors: boolean = true) => {
var testability = registry.findTestabilityInTree(elem, findInAncestors);
if (testability == null) {
throw new Error('Could not find testability for element.');
}
return new PublicTestability(testability);
};
global.getAllAngularTestabilities = () => {
var testabilities = registry.getAllTestabilities();
return testabilities.map((testability) => { return new PublicTestability(testability); });
};
var whenAllStable = (callback) => {
var testabilities = global.getAllAngularTestabilities();
var count = testabilities.length;
var didWork = false;
var decrement = function(didWork_) {
didWork = didWork || didWork_;
count--;
if (count == 0) {
callback(didWork);
}
};
testabilities.forEach(function(testability) { testability.whenStable(decrement); });
};
if (!global.frameworkStabilizers) {
global.frameworkStabilizers = ListWrapper.createGrowableSize(0);
}
global.frameworkStabilizers.push(whenAllStable);
}
findTestabilityInTree(registry: TestabilityRegistry, elem: any,
findInAncestors: boolean): Testability {
if (elem == null) {
return null;
}
var t = registry.getTestability(elem);
if (isPresent(t)) {
return t;
} else if (!findInAncestors) {
return null;
}
if (DOM.isShadowRoot(elem)) {
return this.findTestabilityInTree(registry, DOM.getHost(elem), true);
}
return this.findTestabilityInTree(registry, DOM.parentElement(elem), true);
}
}