angular2/src/core/testability/testability.map

Angular 2 - a web framework for modern web apps

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Each bootstrapped Angular\n * application on the page will have an instance of Testability.\n */\n@Injectable()\nexport class Testability {\n  _pendingCount: number;\n  _callbacks: List;\n\n  constructor() {\n    this._pendingCount = 0;\n    this._callbacks = ListWrapper.create();\n  }\n\n  increaseCount(delta: number = 1) {\n    this._pendingCount += delta;\n    if (this._pendingCount < 0) {\n      throw new BaseException('pending async requests below zero');\n    } else if (this._pendingCount == 0) {\n      this._runCallbacks();\n    }\n    return this._pendingCount;\n  }\n\n  _runCallbacks() {\n    while (this._callbacks.length !== 0) {\n      ListWrapper.removeLast(this._callbacks)();\n    }\n  }\n\n  whenStable(callback: Function) {\n    ListWrapper.push(this._callbacks, callback);\n\n    if (this._pendingCount === 0) {\n      this._runCallbacks();\n    }\n    // TODO(juliemr) - hook into the zone api.\n  }\n\n  getPendingCount(): number {\n    return this._pendingCount;\n  }\n\n  findBindings(using, binding: string, exactMatch: boolean): List {\n    // TODO(juliemr): implement.\n    return [];\n  }\n}\n\n@Injectable()\nexport class TestabilityRegistry {\n  _applications: Map;\n\n  constructor() {\n    this._applications = MapWrapper.create();\n\n    getTestabilityModule.GetTestability.addToWindow(this);\n  }\n\n  registerApplication(token, testability: Testability) {\n    MapWrapper.set(this._applications, token, testability);\n  }\n\n  findTestabilityInTree(elem) : Testability {\n    if (elem == null) {\n      return null;\n    }\n    if (MapWrapper.contains(this._applications, elem)) {\n      return MapWrapper.get(this._applications, elem);\n    }\n    if (DOM.isShadowRoot(elem)) {\n      return this.findTestabilityInTree(DOM.getHost(elem));\n    }\n    return this.findTestabilityInTree(DOM.parentElement(elem));\n  }\n}\n"]}