angular2
Version:
Angular 2 - a web framework for modern web apps
157 lines • 18.1 kB
JavaScript
;"use strict";
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 collection_1 = require('angular2/src/facade/collection');
var lang_1 = require('angular2/src/facade/lang');
var exceptions_1 = require('angular2/src/facade/exceptions');
var ng_zone_1 = require('../zone/ng_zone');
var async_1 = require('angular2/src/facade/async');
/**
* The Testability service provides testing hooks that can be accessed from
* the browser and by services such as Protractor. Each bootstrapped Angular
* application on the page will have an instance of Testability.
*/
var Testability = (function () {
function Testability(_ngZone) {
this._ngZone = _ngZone;
/** @internal */
this._pendingCount = 0;
/** @internal */
this._isZoneStable = true;
/**
* Whether any work was done since the last 'whenStable' callback. This is
* useful to detect if this could have potentially destabilized another
* component while it is stabilizing.
* @internal
*/
this._didWork = false;
/** @internal */
this._callbacks = [];
this._watchAngularEvents();
}
/** @internal */
Testability.prototype._watchAngularEvents = function () {
var _this = this;
async_1.ObservableWrapper.subscribe(this._ngZone.onUnstable, function (_) {
_this._didWork = true;
_this._isZoneStable = false;
});
this._ngZone.runOutsideAngular(function () {
async_1.ObservableWrapper.subscribe(_this._ngZone.onStable, function (_) {
ng_zone_1.NgZone.assertNotInAngularZone();
lang_1.scheduleMicroTask(function () {
_this._isZoneStable = true;
_this._runCallbacksIfReady();
});
});
});
};
Testability.prototype.increasePendingRequestCount = function () {
this._pendingCount += 1;
this._didWork = true;
return this._pendingCount;
};
Testability.prototype.decreasePendingRequestCount = function () {
this._pendingCount -= 1;
if (this._pendingCount < 0) {
throw new exceptions_1.BaseException('pending async requests below zero');
}
this._runCallbacksIfReady();
return this._pendingCount;
};
Testability.prototype.isStable = function () {
return this._isZoneStable && this._pendingCount == 0 && !this._ngZone.hasPendingMacrotasks;
};
/** @internal */
Testability.prototype._runCallbacksIfReady = function () {
var _this = this;
if (this.isStable()) {
// Schedules the call backs in a new frame so that it is always async.
lang_1.scheduleMicroTask(function () {
while (_this._callbacks.length !== 0) {
(_this._callbacks.pop())(_this._didWork);
}
_this._didWork = false;
});
}
else {
// Not Ready
this._didWork = true;
}
};
Testability.prototype.whenStable = function (callback) {
this._callbacks.push(callback);
this._runCallbacksIfReady();
};
Testability.prototype.getPendingRequestCount = function () { return this._pendingCount; };
Testability.prototype.findBindings = function (using, provider, exactMatch) {
// TODO(juliemr): implement.
return [];
};
Testability.prototype.findProviders = function (using, provider, exactMatch) {
// TODO(juliemr): implement.
return [];
};
Testability = __decorate([
di_1.Injectable(),
__metadata('design:paramtypes', [ng_zone_1.NgZone])
], Testability);
return Testability;
}());
exports.Testability = Testability;
/**
* A global registry of {@link Testability} instances for specific elements.
*/
var TestabilityRegistry = (function () {
function TestabilityRegistry() {
/** @internal */
this._applications = new collection_1.Map();
_testabilityGetter.addToWindow(this);
}
TestabilityRegistry.prototype.registerApplication = function (token, testability) {
this._applications.set(token, testability);
};
TestabilityRegistry.prototype.getTestability = function (elem) { return this._applications.get(elem); };
TestabilityRegistry.prototype.getAllTestabilities = function () { return collection_1.MapWrapper.values(this._applications); };
TestabilityRegistry.prototype.getAllRootElements = function () { return collection_1.MapWrapper.keys(this._applications); };
TestabilityRegistry.prototype.findTestabilityInTree = function (elem, findInAncestors) {
if (findInAncestors === void 0) { findInAncestors = true; }
return _testabilityGetter.findTestabilityInTree(this, elem, findInAncestors);
};
TestabilityRegistry = __decorate([
di_1.Injectable(),
__metadata('design:paramtypes', [])
], TestabilityRegistry);
return TestabilityRegistry;
}());
exports.TestabilityRegistry = TestabilityRegistry;
var _NoopGetTestability = (function () {
function _NoopGetTestability() {
}
_NoopGetTestability.prototype.addToWindow = function (registry) { };
_NoopGetTestability.prototype.findTestabilityInTree = function (registry, elem, findInAncestors) {
return null;
};
_NoopGetTestability = __decorate([
lang_1.CONST(),
__metadata('design:paramtypes', [])
], _NoopGetTestability);
return _NoopGetTestability;
}());
/**
* Set the {@link GetTestability} implementation used by the Angular testing framework.
*/
function setTestabilityGetter(getter) {
_testabilityGetter = getter;
}
exports.setTestabilityGetter = setTestabilityGetter;
var _testabilityGetter = lang_1.CONST_EXPR(new _NoopGetTestability());
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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  /** @internal */\n  _pendingCount: number = 0;\n  /** @internal */\n  _isZoneStable: boolean = true;\n  /**\n   * Whether any work was done since the last 'whenStable' callback. This is\n   * useful to detect if this could have potentially destabilized another\n   * component while it is stabilizing.\n   * @internal\n   */\n  _didWork: boolean = false;\n  /** @internal */\n  _callbacks: Function[] = [];\n  constructor(private _ngZone: NgZone) { this._watchAngularEvents(); }\n\n  /** @internal */\n  _watchAngularEvents(): void {\n    ObservableWrapper.subscribe(this._ngZone.onUnstable, (_) => {\n      this._didWork = true;\n      this._isZoneStable = false;\n    });\n\n    this._ngZone.runOutsideAngular(() => {\n      ObservableWrapper.subscribe(this._ngZone.onStable, (_) => {\n        NgZone.assertNotInAngularZone();\n        scheduleMicroTask(() => {\n          this._isZoneStable = true;\n          this._runCallbacksIfReady();\n        });\n      });\n    });\n  }\n\n  increasePendingRequestCount(): number {\n    this._pendingCount += 1;\n    this._didWork = true;\n    return this._pendingCount;\n  }\n\n  decreasePendingRequestCount(): number {\n    this._pendingCount -= 1;\n    if (this._pendingCount < 0) {\n      throw new BaseException('pending async requests below zero');\n    }\n    this._runCallbacksIfReady();\n    return this._pendingCount;\n  }\n\n  isStable(): boolean {\n    return this._isZoneStable && this._pendingCount == 0 && !this._ngZone.hasPendingMacrotasks;\n  }\n\n  /** @internal */\n  _runCallbacksIfReady(): void {\n    if (this.isStable()) {\n      // Schedules the call backs in a new frame so that it is always async.\n      scheduleMicroTask(() => {\n        while (this._callbacks.length !== 0) {\n          (this._callbacks.pop())(this._didWork);\n        }\n        this._didWork = false;\n      });\n    } else {\n      // Not Ready\n      this._didWork = true;\n    }\n  }\n\n  whenStable(callback: Function): void {\n    this._callbacks.push(callback);\n    this._runCallbacksIfReady();\n  }\n\n  getPendingRequestCount(): number { return this._pendingCount; }\n\n  findBindings(using: any, provider: string, exactMatch: boolean): any[] {\n    // TODO(juliemr): implement.\n    return [];\n  }\n\n  findProviders(using: any, provider: string, exactMatch: boolean): any[] {\n    // TODO(juliemr): implement.\n    return [];\n  }\n}\n\n/**\n * A global registry of {@link Testability} instances for specific elements.\n */\n@Injectable()\nexport class TestabilityRegistry {\n  /** @internal */\n  _applications = new Map<any, Testability>();\n\n  constructor() { _testabilityGetter.addToWindow(this); }\n\n  registerApplication(token: any, testability: Testability) {\n    this._applications.set(token, testability);\n  }\n\n  getTestability(elem: any): Testability { return this._applications.get(elem); }\n\n  getAllTestabilities(): Testability[] { return MapWrapper.values(this._applications); }\n\n  getAllRootElements(): any[] { return MapWrapper.keys(this._applications); }\n\n  findTestabilityInTree(elem: Node, findInAncestors: boolean = true): Testability {\n    return _testabilityGetter.findTestabilityInTree(this, elem, findInAncestors);\n  }\n}\n\n/**\n * Adapter interface for retrieving the `Testability` service associated for a\n * particular context.\n */\nexport interface GetTestability {\n  addToWindow(registry: TestabilityRegistry): void;\n  findTestabilityInTree(registry: TestabilityRegistry, elem: any,\n                        findInAncestors: boolean): Testability;\n}\n\n@CONST()\nclass _NoopGetTestability implements GetTestability {\n  addToWindow(registry: TestabilityRegistry): void {}\n  findTestabilityInTree(registry: TestabilityRegistry, elem: any,\n                        findInAncestors: boolean): Testability {\n    return null;\n  }\n}\n\n/**\n * Set the {@link GetTestability} implementation used by the Angular testing framework.\n */\nexport function setTestabilityGetter(getter: GetTestability): void {\n  _testabilityGetter = getter;\n}\n\nvar _testabilityGetter: GetTestability = CONST_EXPR(new _NoopGetTestability());\n"]}