d91a86aac6
- Full support for content projection in downgraded Angular 2 components. In particular, this enables multi-slot projection and other features on <ng-content>. - Correctly wire up hierarchical injectors for downgraded Angular 2 components: downgraded components inherit the injector of the first other downgraded Angular 2 component they find up the DOM tree. Closes #6629, #7727, #8729, #9643, #9649, #12675
745 lines
28 KiB
TypeScript
745 lines
28 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {CssSelector, SelectorMatcher, createElementCssSelector} from '@angular/compiler';
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import {Compiler, CompilerOptions, ComponentFactory, Injector, NgModule, NgModuleRef, NgZone, Provider, Testability, Type} from '@angular/core';
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import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
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import * as angular from './angular_js';
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import {NG1_COMPILE, NG1_INJECTOR, NG1_PARSE, NG1_ROOT_SCOPE, NG1_TESTABILITY, NG2_COMPILER, NG2_COMPONENT_FACTORY_REF_MAP, NG2_INJECTOR, NG2_ZONE, REQUIRE_INJECTOR} from './constants';
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import {DowngradeNg2ComponentAdapter} from './downgrade_ng2_adapter';
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import {isPresent} from './facade/lang';
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import {ComponentInfo, getComponentInfo} from './metadata';
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import {UpgradeNg1ComponentAdapterBuilder} from './upgrade_ng1_adapter';
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import {Deferred, controllerKey, getAttributesAsArray, onError} from './util';
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let upgradeCount: number = 0;
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/**
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* Use `UpgradeAdapter` to allow AngularJS v1 and Angular v2 to coexist in a single application.
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*
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* The `UpgradeAdapter` allows:
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* 1. creation of Angular v2 component from AngularJS v1 component directive
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* (See [UpgradeAdapter#upgradeNg1Component()])
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* 2. creation of AngularJS v1 directive from Angular v2 component.
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* (See [UpgradeAdapter#downgradeNg2Component()])
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* 3. Bootstrapping of a hybrid Angular application which contains both of the frameworks
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* coexisting in a single application.
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*
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* ## Mental Model
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*
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* When reasoning about how a hybrid application works it is useful to have a mental model which
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* describes what is happening and explains what is happening at the lowest level.
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*
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* 1. There are two independent frameworks running in a single application, each framework treats
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* the other as a black box.
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* 2. Each DOM element on the page is owned exactly by one framework. Whichever framework
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* instantiated the element is the owner. Each framework only updates/interacts with its own
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* DOM elements and ignores others.
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* 3. AngularJS v1 directives always execute inside AngularJS v1 framework codebase regardless of
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* where they are instantiated.
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* 4. Angular v2 components always execute inside Angular v2 framework codebase regardless of
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* where they are instantiated.
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* 5. An AngularJS v1 component can be upgraded to an Angular v2 component. This creates an
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* Angular v2 directive, which bootstraps the AngularJS v1 component directive in that location.
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* 6. An Angular v2 component can be downgraded to an AngularJS v1 component directive. This creates
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* an AngularJS v1 directive, which bootstraps the Angular v2 component in that location.
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* 7. Whenever an adapter component is instantiated the host element is owned by the framework
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* doing the instantiation. The other framework then instantiates and owns the view for that
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* component. This implies that component bindings will always follow the semantics of the
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* instantiation framework. The syntax is always that of Angular v2 syntax.
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* 8. AngularJS v1 is always bootstrapped first and owns the bottom most view.
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* 9. The new application is running in Angular v2 zone, and therefore it no longer needs calls to
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* `$apply()`.
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*
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* ### Example
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*
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* ```
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* const adapter = new UpgradeAdapter(forwardRef(() => MyNg2Module), myCompilerOptions);
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* const module = angular.module('myExample', []);
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* module.directive('ng2Comp', adapter.downgradeNg2Component(Ng2Component));
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*
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* module.directive('ng1Hello', function() {
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* return {
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* scope: { title: '=' },
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* template: 'ng1[Hello {{title}}!](<span ng-transclude></span>)'
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* };
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* });
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*
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*
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* @Component({
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* selector: 'ng2-comp',
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* inputs: ['name'],
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* template: 'ng2[<ng1-hello [title]="name">transclude</ng1-hello>](<ng-content></ng-content>)',
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* directives:
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* })
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* class Ng2Component {
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* }
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*
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* @NgModule({
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* declarations: [Ng2Component, adapter.upgradeNg1Component('ng1Hello')],
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* imports: [BrowserModule]
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* })
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* class MyNg2Module {}
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*
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*
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* document.body.innerHTML = '<ng2-comp name="World">project</ng2-comp>';
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*
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* adapter.bootstrap(document.body, ['myExample']).ready(function() {
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* expect(document.body.textContent).toEqual(
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* "ng2[ng1[Hello World!](transclude)](project)");
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* });
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*
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* ```
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*
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* @stable
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*/
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export class UpgradeAdapter {
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private idPrefix: string = `NG2_UPGRADE_${upgradeCount++}_`;
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private upgradedComponents: Type<any>[] = [];
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/**
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* An internal map of ng1 components which need to up upgraded to ng2.
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*
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* We can't upgrade until injector is instantiated and we can retrieve the component metadata.
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* For this reason we keep a list of components to upgrade until ng1 injector is bootstrapped.
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*
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* @internal
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*/
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private ng1ComponentsToBeUpgraded: {[name: string]: UpgradeNg1ComponentAdapterBuilder} = {};
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private providers: Provider[] = [];
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private ngZone: NgZone;
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private ng1Module: angular.IModule;
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private moduleRef: NgModuleRef<any> = null;
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private ng2BootstrapDeferred: Deferred<angular.IInjectorService>;
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constructor(private ng2AppModule: Type<any>, private compilerOptions?: CompilerOptions) {
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if (!ng2AppModule) {
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throw new Error(
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'UpgradeAdapter cannot be instantiated without an NgModule of the Angular 2 app.');
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}
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}
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/**
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* Allows Angular v2 Component to be used from AngularJS v1.
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*
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* Use `downgradeNg2Component` to create an AngularJS v1 Directive Definition Factory from
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* Angular v2 Component. The adapter will bootstrap Angular v2 component from within the
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* AngularJS v1 template.
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*
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* ## Mental Model
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*
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* 1. The component is instantiated by being listed in AngularJS v1 template. This means that the
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* host element is controlled by AngularJS v1, but the component's view will be controlled by
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* Angular v2.
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* 2. Even thought the component is instantiated in AngularJS v1, it will be using Angular v2
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* syntax. This has to be done, this way because we must follow Angular v2 components do not
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* declare how the attributes should be interpreted.
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*
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* ## Supported Features
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*
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* - Bindings:
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* - Attribute: `<comp name="World">`
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* - Interpolation: `<comp greeting="Hello {{name}}!">`
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* - Expression: `<comp [name]="username">`
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* - Event: `<comp (close)="doSomething()">`
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* - Content projection: yes
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*
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* ### Example
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*
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* ```
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* const adapter = new UpgradeAdapter(forwardRef(() => MyNg2Module));
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* const module = angular.module('myExample', []);
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* module.directive('greet', adapter.downgradeNg2Component(Greeter));
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*
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* @Component({
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* selector: 'greet',
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* template: '{{salutation}} {{name}}! - <ng-content></ng-content>'
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* })
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* class Greeter {
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* @Input() salutation: string;
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* @Input() name: string;
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* }
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*
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* @NgModule({
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* declarations: [Greeter],
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* imports: [BrowserModule]
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* })
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* class MyNg2Module {}
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*
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* document.body.innerHTML =
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* 'ng1 template: <greet salutation="Hello" [name]="world">text</greet>';
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*
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* adapter.bootstrap(document.body, ['myExample']).ready(function() {
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* expect(document.body.textContent).toEqual("ng1 template: Hello world! - text");
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* });
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* ```
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*/
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downgradeNg2Component(type: Type<any>): Function {
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this.upgradedComponents.push(type);
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const info: ComponentInfo = getComponentInfo(type);
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return ng1ComponentDirective(info, `${this.idPrefix}${info.selector}_c`);
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}
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/**
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* Allows AngularJS v1 Component to be used from Angular v2.
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*
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* Use `upgradeNg1Component` to create an Angular v2 component from AngularJS v1 Component
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* directive. The adapter will bootstrap AngularJS v1 component from within the Angular v2
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* template.
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*
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* ## Mental Model
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*
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* 1. The component is instantiated by being listed in Angular v2 template. This means that the
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* host element is controlled by Angular v2, but the component's view will be controlled by
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* AngularJS v1.
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*
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* ## Supported Features
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*
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* - Bindings:
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* - Attribute: `<comp name="World">`
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* - Interpolation: `<comp greeting="Hello {{name}}!">`
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* - Expression: `<comp [name]="username">`
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* - Event: `<comp (close)="doSomething()">`
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* - Transclusion: yes
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* - Only some of the features of
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* [Directive Definition Object](https://docs.angularjs.org/api/ng/service/$compile) are
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* supported:
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* - `compile`: not supported because the host element is owned by Angular v2, which does
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* not allow modifying DOM structure during compilation.
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* - `controller`: supported. (NOTE: injection of `$attrs` and `$transclude` is not supported.)
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* - `controllerAs': supported.
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* - `bindToController': supported.
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* - `link': supported. (NOTE: only pre-link function is supported.)
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* - `name': supported.
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* - `priority': ignored.
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* - `replace': not supported.
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* - `require`: supported.
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* - `restrict`: must be set to 'E'.
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* - `scope`: supported.
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* - `template`: supported.
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* - `templateUrl`: supported.
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* - `terminal`: ignored.
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* - `transclude`: supported.
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*
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*
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* ### Example
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*
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* ```
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* const adapter = new UpgradeAdapter(forwardRef(() => MyNg2Module));
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* const module = angular.module('myExample', []);
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*
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* module.directive('greet', function() {
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* return {
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* scope: {salutation: '=', name: '=' },
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* template: '{{salutation}} {{name}}! - <span ng-transclude></span>'
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* };
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* });
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*
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* module.directive('ng2', adapter.downgradeNg2Component(Ng2Component));
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*
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* @Component({
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* selector: 'ng2',
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* template: 'ng2 template: <greet salutation="Hello" [name]="world">text</greet>'
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* })
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* class Ng2Component {
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* }
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*
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* @NgModule({
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* declarations: [Ng2Component, adapter.upgradeNg1Component('greet')],
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* imports: [BrowserModule]
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* })
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* class MyNg2Module {}
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*
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* document.body.innerHTML = '<ng2></ng2>';
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*
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* adapter.bootstrap(document.body, ['myExample']).ready(function() {
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* expect(document.body.textContent).toEqual("ng2 template: Hello world! - text");
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* });
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* ```
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*/
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upgradeNg1Component(name: string): Type<any> {
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if ((<any>this.ng1ComponentsToBeUpgraded).hasOwnProperty(name)) {
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return this.ng1ComponentsToBeUpgraded[name].type;
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} else {
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return (this.ng1ComponentsToBeUpgraded[name] = new UpgradeNg1ComponentAdapterBuilder(name))
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.type;
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}
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}
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/**
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* Bootstrap a hybrid AngularJS v1 / Angular v2 application.
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*
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* This `bootstrap` method is a direct replacement (takes same arguments) for AngularJS v1
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* [`bootstrap`](https://docs.angularjs.org/api/ng/function/angular.bootstrap) method. Unlike
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* AngularJS v1, this bootstrap is asynchronous.
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*
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* ### Example
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*
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* ```
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* const adapter = new UpgradeAdapter();
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* const module = angular.module('myExample', []);
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* module.directive('ng2', adapter.downgradeNg2Component(Ng2));
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*
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* module.directive('ng1', function() {
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* return {
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* scope: { title: '=' },
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* template: 'ng1[Hello {{title}}!](<span ng-transclude></span>)'
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* };
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* });
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*
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*
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* @Component({
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* selector: 'ng2',
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* inputs: ['name'],
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* template: 'ng2[<ng1 [title]="name">transclude</ng1>](<ng-content></ng-content>)'
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* })
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* class Ng2 {
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* }
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*
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* @NgModule({
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* declarations: [Ng2, adapter.upgradeNg1Component('ng1')],
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* imports: [BrowserModule]
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* })
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* class MyNg2Module {}
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*
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* document.body.innerHTML = '<ng2 name="World">project</ng2>';
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*
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* adapter.bootstrap(document.body, ['myExample']).ready(function() {
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* expect(document.body.textContent).toEqual(
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* "ng2[ng1[Hello World!](transclude)](project)");
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* });
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* ```
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*/
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bootstrap(element: Element, modules?: any[], config?: angular.IAngularBootstrapConfig):
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UpgradeAdapterRef {
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this.declareNg1Module(modules);
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const upgrade = new UpgradeAdapterRef();
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// Make sure resumeBootstrap() only exists if the current bootstrap is deferred
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const windowAngular = (window as any /** TODO #???? */)['angular'];
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windowAngular.resumeBootstrap = undefined;
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this.ngZone.run(() => { angular.bootstrap(element, [this.ng1Module.name], config); });
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const ng1BootstrapPromise = new Promise((resolve) => {
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if (windowAngular.resumeBootstrap) {
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const originalResumeBootstrap: () => void = windowAngular.resumeBootstrap;
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windowAngular.resumeBootstrap = function() {
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windowAngular.resumeBootstrap = originalResumeBootstrap;
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windowAngular.resumeBootstrap.apply(this, arguments);
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resolve();
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};
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} else {
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resolve();
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}
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});
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Promise.all([this.ng2BootstrapDeferred.promise, ng1BootstrapPromise]).then(([ng1Injector]) => {
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angular.element(element).data(controllerKey(NG2_INJECTOR), this.moduleRef.injector);
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this.moduleRef.injector.get(NgZone).run(
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() => { (<any>upgrade)._bootstrapDone(this.moduleRef, ng1Injector); });
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}, onError);
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return upgrade;
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}
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/**
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* Allows AngularJS v1 service to be accessible from Angular v2.
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*
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*
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* ### Example
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*
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* ```
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* class Login { ... }
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* class Server { ... }
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*
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* @Injectable()
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* class Example {
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* constructor(@Inject('server') server, login: Login) {
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* ...
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* }
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* }
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*
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* const module = angular.module('myExample', []);
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* module.service('server', Server);
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* module.service('login', Login);
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*
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* const adapter = new UpgradeAdapter();
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* adapter.upgradeNg1Provider('server');
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* adapter.upgradeNg1Provider('login', {asToken: Login});
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*
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* adapter.bootstrap(document.body, ['myExample']).ready((ref) => {
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* const example: Example = ref.ng2Injector.get(Example);
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* });
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*
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* ```
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*/
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public upgradeNg1Provider(name: string, options?: {asToken: any}) {
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const token = options && options.asToken || name;
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this.providers.push({
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provide: token,
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useFactory: (ng1Injector: angular.IInjectorService) => ng1Injector.get(name),
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deps: [NG1_INJECTOR]
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});
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}
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/**
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* Allows Angular v2 service to be accessible from AngularJS v1.
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*
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*
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* ### Example
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*
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* ```
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* class Example {
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* }
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*
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* const adapter = new UpgradeAdapter();
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*
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* const module = angular.module('myExample', []);
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* module.factory('example', adapter.downgradeNg2Provider(Example));
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*
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* adapter.bootstrap(document.body, ['myExample']).ready((ref) => {
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* const example: Example = ref.ng1Injector.get('example');
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* });
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*
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* ```
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*/
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public downgradeNg2Provider(token: any): Function {
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const factory = function(injector: Injector) { return injector.get(token); };
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(<any>factory).$inject = [NG2_INJECTOR];
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return factory;
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}
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|
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/**
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* Declare the Angular 1 upgrade module for this adapter without bootstrapping the whole
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* hybrid application.
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*
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* This method is automatically called by `bootstrap()`.
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*
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* @param modules The Angular 1 modules that this upgrade module should depend upon.
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* @returns The Angular 1 upgrade module that is declared by this method
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*
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* ### Example
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*
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* ```
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* const upgradeAdapter = new UpgradeAdapter();
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* upgradeAdapter.declareNg1Module(['heroApp']);
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* ```
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*/
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private declareNg1Module(modules: string[] = []): angular.IModule {
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const delayApplyExps: Function[] = [];
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let original$applyFn: Function;
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let rootScopePrototype: any;
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let rootScope: angular.IRootScopeService;
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const componentFactoryRefMap: ComponentFactoryRefMap = {};
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const upgradeAdapter = this;
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const ng1Module = this.ng1Module = angular.module(this.idPrefix, modules);
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const platformRef = platformBrowserDynamic();
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this.ngZone = new NgZone({enableLongStackTrace: Zone.hasOwnProperty('longStackTraceZoneSpec')});
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this.ng2BootstrapDeferred = new Deferred();
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ng1Module.factory(NG2_INJECTOR, () => this.moduleRef.injector.get(Injector))
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.constant(NG2_ZONE, this.ngZone)
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.constant(NG2_COMPONENT_FACTORY_REF_MAP, componentFactoryRefMap)
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.factory(NG2_COMPILER, () => this.moduleRef.injector.get(Compiler))
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.config([
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'$provide', '$injector',
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(provide: angular.IProvideService, ng1Injector: angular.IInjectorService) => {
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provide.decorator(NG1_ROOT_SCOPE, [
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'$delegate',
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function(rootScopeDelegate: angular.IRootScopeService) {
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// Capture the root apply so that we can delay first call to $apply until we
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// bootstrap Angular 2 and then we replay and restore the $apply.
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rootScopePrototype = rootScopeDelegate.constructor.prototype;
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if (rootScopePrototype.hasOwnProperty('$apply')) {
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original$applyFn = rootScopePrototype.$apply;
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rootScopePrototype.$apply = (exp: any) => delayApplyExps.push(exp);
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} else {
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throw new Error('Failed to find \'$apply\' on \'$rootScope\'!');
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}
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return rootScope = rootScopeDelegate;
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}
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]);
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if (ng1Injector.has(NG1_TESTABILITY)) {
|
|
provide.decorator(NG1_TESTABILITY, [
|
|
'$delegate',
|
|
function(testabilityDelegate: angular.ITestabilityService) {
|
|
const originalWhenStable: Function = testabilityDelegate.whenStable;
|
|
// Cannot use arrow function below because we need the context
|
|
const newWhenStable = function(callback: Function) {
|
|
originalWhenStable.call(this, function() {
|
|
const ng2Testability: Testability =
|
|
upgradeAdapter.moduleRef.injector.get(Testability);
|
|
if (ng2Testability.isStable()) {
|
|
callback.apply(this, arguments);
|
|
} else {
|
|
ng2Testability.whenStable(newWhenStable.bind(this, callback));
|
|
}
|
|
});
|
|
};
|
|
|
|
testabilityDelegate.whenStable = newWhenStable;
|
|
return testabilityDelegate;
|
|
}
|
|
]);
|
|
}
|
|
}
|
|
]);
|
|
|
|
ng1Module.run([
|
|
'$injector', '$rootScope',
|
|
(ng1Injector: angular.IInjectorService, rootScope: angular.IRootScopeService) => {
|
|
UpgradeNg1ComponentAdapterBuilder.resolve(this.ng1ComponentsToBeUpgraded, ng1Injector)
|
|
.then(() => {
|
|
// At this point we have ng1 injector and we have lifted ng1 components into ng2, we
|
|
// now can bootstrap ng2.
|
|
const DynamicNgUpgradeModule =
|
|
NgModule({
|
|
providers: [
|
|
{provide: NG1_INJECTOR, useFactory: () => ng1Injector},
|
|
{provide: NG1_COMPILE, useFactory: () => ng1Injector.get(NG1_COMPILE)},
|
|
this.providers
|
|
],
|
|
imports: [this.ng2AppModule]
|
|
}).Class({
|
|
constructor: function DynamicNgUpgradeModule() {},
|
|
ngDoBootstrap: function() {}
|
|
});
|
|
(platformRef as any)
|
|
._bootstrapModuleWithZone(
|
|
DynamicNgUpgradeModule, this.compilerOptions, this.ngZone,
|
|
(componentFactories: ComponentFactory<any>[]) => {
|
|
componentFactories.forEach((componentFactory) => {
|
|
const type: Type<any> = componentFactory.componentType;
|
|
if (this.upgradedComponents.indexOf(type) !== -1) {
|
|
componentFactoryRefMap[getComponentInfo(type).selector] =
|
|
componentFactory;
|
|
}
|
|
});
|
|
})
|
|
.then((ref: NgModuleRef<any>) => {
|
|
this.moduleRef = ref;
|
|
let subscription = this.ngZone.onMicrotaskEmpty.subscribe({
|
|
next: (_: any) => this.ngZone.runOutsideAngular(() => rootScope.$evalAsync())
|
|
});
|
|
rootScope.$on('$destroy', () => { subscription.unsubscribe(); });
|
|
this.ngZone.run(() => {
|
|
if (rootScopePrototype) {
|
|
rootScopePrototype.$apply = original$applyFn; // restore original $apply
|
|
while (delayApplyExps.length) {
|
|
rootScope.$apply(delayApplyExps.shift());
|
|
}
|
|
rootScopePrototype = null;
|
|
}
|
|
});
|
|
})
|
|
.then(() => this.ng2BootstrapDeferred.resolve(ng1Injector), onError);
|
|
})
|
|
.catch((e) => this.ng2BootstrapDeferred.reject(e));
|
|
}
|
|
]);
|
|
|
|
return ng1Module;
|
|
}
|
|
}
|
|
|
|
interface ComponentFactoryRefMap {
|
|
[selector: string]: ComponentFactory<any>;
|
|
}
|
|
|
|
/**
|
|
* Synchronous promise-like object to wrap parent injectors,
|
|
* to preserve the synchronous nature of AngularJS v1's $compile.
|
|
*/
|
|
class ParentInjectorPromise {
|
|
private injector: Injector;
|
|
private callbacks: ((injector: Injector) => any)[] = [];
|
|
|
|
constructor(private element: angular.IAugmentedJQuery) {
|
|
// store the promise on the element
|
|
element.data(controllerKey(NG2_INJECTOR), this);
|
|
}
|
|
|
|
then(callback: (injector: Injector) => any) {
|
|
if (this.injector) {
|
|
callback(this.injector);
|
|
} else {
|
|
this.callbacks.push(callback);
|
|
}
|
|
}
|
|
|
|
resolve(injector: Injector) {
|
|
this.injector = injector;
|
|
|
|
// reset the element data to point to the real injector
|
|
this.element.data(controllerKey(NG2_INJECTOR), injector);
|
|
|
|
// clean out the element to prevent memory leaks
|
|
this.element = null;
|
|
|
|
// run all the queued callbacks
|
|
this.callbacks.forEach((callback) => callback(injector));
|
|
this.callbacks.length = 0;
|
|
}
|
|
}
|
|
|
|
|
|
function ng1ComponentDirective(info: ComponentInfo, idPrefix: string): Function {
|
|
(<any>directiveFactory).$inject =
|
|
[NG1_INJECTOR, NG1_COMPILE, NG2_COMPONENT_FACTORY_REF_MAP, NG1_PARSE];
|
|
function directiveFactory(
|
|
ng1Injector: angular.IInjectorService, ng1Compile: angular.ICompileService,
|
|
componentFactoryRefMap: ComponentFactoryRefMap,
|
|
parse: angular.IParseService): angular.IDirective {
|
|
let idCount = 0;
|
|
let dashSelector = info.selector.replace(/[A-Z]/g, char => '-' + char.toLowerCase());
|
|
return {
|
|
restrict: 'E',
|
|
terminal: true,
|
|
require: REQUIRE_INJECTOR,
|
|
compile: (templateElement: angular.IAugmentedJQuery, templateAttributes: angular.IAttributes,
|
|
transclude: angular.ITranscludeFunction) => {
|
|
// We might have compile the contents lazily, because this might have been triggered by the
|
|
// UpgradeNg1ComponentAdapterBuilder, when the ng2 templates have not been compiled yet
|
|
return {
|
|
post: (scope: angular.IScope, element: angular.IAugmentedJQuery,
|
|
attrs: angular.IAttributes, parentInjector: Injector | ParentInjectorPromise,
|
|
transclude: angular.ITranscludeFunction): void => {
|
|
let id = idPrefix + (idCount++);
|
|
(<any>element[0]).id = id;
|
|
|
|
let injectorPromise = new ParentInjectorPromise(element);
|
|
|
|
const ng2Compiler = ng1Injector.get(NG2_COMPILER) as Compiler;
|
|
const ngContentSelectors = ng2Compiler.getNgContentSelectors(info.type);
|
|
const linkFns = compileProjectedNodes(templateElement, ngContentSelectors);
|
|
|
|
const componentFactory: ComponentFactory<any> = componentFactoryRefMap[info.selector];
|
|
if (!componentFactory)
|
|
throw new Error('Expecting ComponentFactory for: ' + info.selector);
|
|
|
|
element.empty();
|
|
let projectableNodes = linkFns.map(link => {
|
|
let projectedClone: Node[];
|
|
link(scope, (clone: Node[]) => {
|
|
projectedClone = clone;
|
|
element.append(clone);
|
|
});
|
|
return projectedClone;
|
|
});
|
|
|
|
parentInjector = parentInjector || ng1Injector.get(NG2_INJECTOR);
|
|
|
|
if (parentInjector instanceof ParentInjectorPromise) {
|
|
parentInjector.then((resolvedInjector: Injector) => downgrade(resolvedInjector));
|
|
} else {
|
|
downgrade(parentInjector);
|
|
}
|
|
|
|
function downgrade(injector: Injector) {
|
|
const facade = new DowngradeNg2ComponentAdapter(
|
|
info, element, attrs, scope, injector, parse, componentFactory);
|
|
facade.setupInputs();
|
|
facade.bootstrapNg2(projectableNodes);
|
|
facade.setupOutputs();
|
|
facade.registerCleanup();
|
|
injectorPromise.resolve(facade.componentRef.injector);
|
|
}
|
|
}
|
|
};
|
|
}
|
|
};
|
|
|
|
function compileProjectedNodes(
|
|
templateElement: angular.IAugmentedJQuery,
|
|
ngContentSelectors: string[]): angular.ILinkFn[] {
|
|
if (!ngContentSelectors)
|
|
throw new Error('Expecting ngContentSelectors for: ' + info.selector);
|
|
// We have to sort the projected content before we compile it, hence the terminal: true
|
|
let projectableTemplateNodes =
|
|
sortProjectableNodes(ngContentSelectors, templateElement.contents());
|
|
return projectableTemplateNodes.map(nodes => ng1Compile(nodes));
|
|
}
|
|
}
|
|
return directiveFactory;
|
|
}
|
|
|
|
/**
|
|
* Use `UpgradeAdapterRef` to control a hybrid AngularJS v1 / Angular v2 application.
|
|
*
|
|
* @stable
|
|
*/
|
|
export class UpgradeAdapterRef {
|
|
/* @internal */
|
|
private _readyFn: (upgradeAdapterRef?: UpgradeAdapterRef) => void = null;
|
|
|
|
public ng1RootScope: angular.IRootScopeService = null;
|
|
public ng1Injector: angular.IInjectorService = null;
|
|
public ng2ModuleRef: NgModuleRef<any> = null;
|
|
public ng2Injector: Injector = null;
|
|
|
|
/* @internal */
|
|
private _bootstrapDone(ngModuleRef: NgModuleRef<any>, ng1Injector: angular.IInjectorService) {
|
|
this.ng2ModuleRef = ngModuleRef;
|
|
this.ng2Injector = ngModuleRef.injector;
|
|
this.ng1Injector = ng1Injector;
|
|
this.ng1RootScope = ng1Injector.get(NG1_ROOT_SCOPE);
|
|
this._readyFn && this._readyFn(this);
|
|
}
|
|
|
|
/**
|
|
* Register a callback function which is notified upon successful hybrid AngularJS v1 / Angular v2
|
|
* application has been bootstrapped.
|
|
*
|
|
* The `ready` callback function is invoked inside the Angular v2 zone, therefore it does not
|
|
* require a call to `$apply()`.
|
|
*/
|
|
public ready(fn: (upgradeAdapterRef?: UpgradeAdapterRef) => void) { this._readyFn = fn; }
|
|
|
|
/**
|
|
* Dispose of running hybrid AngularJS v1 / Angular v2 application.
|
|
*/
|
|
public dispose() {
|
|
this.ng1Injector.get(NG1_ROOT_SCOPE).$destroy();
|
|
this.ng2ModuleRef.destroy();
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Sort a set of DOM nodes that into groups based on the given content selectors
|
|
*/
|
|
export function sortProjectableNodes(ngContentSelectors: string[], childNodes: Node[]): Node[][] {
|
|
let projectableNodes: Node[][] = [];
|
|
let matcher = new SelectorMatcher();
|
|
let wildcardNgContentIndex: number;
|
|
for (let i = 0, ii = ngContentSelectors.length; i < ii; i++) {
|
|
projectableNodes[i] = [];
|
|
if (ngContentSelectors[i] === '*') {
|
|
wildcardNgContentIndex = i;
|
|
} else {
|
|
matcher.addSelectables(CssSelector.parse(ngContentSelectors[i]), i);
|
|
}
|
|
}
|
|
for (let node of childNodes) {
|
|
let ngContentIndices: number[] = [];
|
|
let selector =
|
|
createElementCssSelector(node.nodeName.toLowerCase(), getAttributesAsArray(node));
|
|
matcher.match(
|
|
selector, (selector, ngContentIndex) => { ngContentIndices.push(ngContentIndex); });
|
|
ngContentIndices.sort();
|
|
if (wildcardNgContentIndex !== undefined) {
|
|
ngContentIndices.push(wildcardNgContentIndex);
|
|
}
|
|
if (ngContentIndices.length > 0) {
|
|
projectableNodes[ngContentIndices[0]].push(node);
|
|
}
|
|
}
|
|
return projectableNodes;
|
|
}
|