da41a954b5
Angular 1.x -> AngularJS Angular 1 -> AngularJS Angular1 -> AngularJS Angular 2+ -> Angular Angular 2.0 -> Angular Angular2 -> Angular I have deliberately not touched any of the symbol names as that would cause big merge collisions with Tobias's work. All the renames are in .md, .json, and inline comments and jsdocs. PR Close #14132
805 lines
30 KiB
TypeScript
805 lines
30 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, REQUIRE_NG1_MODEL} from './constants';
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import {DowngradeNg2ComponentAdapter} from './downgrade_ng2_adapter';
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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 and Angular 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 component from AngularJS component directive
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* (See [UpgradeAdapter#upgradeNg1Component()])
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* 2. creation of AngularJS directive from Angular 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 directives always execute inside AngularJS framework codebase regardless of
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* where they are instantiated.
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* 4. Angular components always execute inside Angular framework codebase regardless of
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* where they are instantiated.
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* 5. An AngularJS component can be upgraded to an Angular component. This creates an
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* Angular directive, which bootstraps the AngularJS component directive in that location.
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* 6. An Angular component can be downgraded to an AngularJS component directive. This creates
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* an AngularJS directive, which bootstraps the Angular 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 syntax.
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* 8. AngularJS is always bootstrapped first and owns the bottom most view.
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* 9. The new application is running in Angular 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 app.');
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}
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}
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/**
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* Allows Angular Component to be used from AngularJS.
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*
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* Use `downgradeNg2Component` to create an AngularJS Directive Definition Factory from
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* Angular Component. The adapter will bootstrap Angular component from within the
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* AngularJS 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 template. This means that the
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* host element is controlled by AngularJS, but the component's view will be controlled by
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* Angular.
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* 2. Even thought the component is instantiated in AngularJS, it will be using Angular
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* syntax. This has to be done, this way because we must follow Angular components do not
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* declare how the attributes should be interpreted.
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* 3. ng-model is controlled by AngularJS v1 and communicates with the downgraded Ng2 component
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* by way of the ControlValueAccessor interface from @angular/forms. Only components that
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* implement this interface are eligible.
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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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* - ng-model: `<comp ng-model="name">`
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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 Component to be used from Angular.
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*
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* Use `upgradeNg1Component` to create an Angular component from AngularJS Component
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* directive. The adapter will bootstrap AngularJS component from within the Angular
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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 template. This means that the
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* host element is controlled by Angular, but the component's view will be controlled by
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* AngularJS.
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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/$compile) are
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* supported:
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* - `compile`: not supported because the host element is owned by Angular, which does
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* not allow modifying DOM structure during compilation.
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* - `controller`: supported. (NOTE: injection of `$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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* Registers the adapter's AngularJS upgrade module for unit testing in AngularJS.
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* Use this instead of `angular.mock.module()` to load the upgrade module into
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* the AngularJS testing injector.
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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(MyNg2Module);
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*
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* // configure the adapter with upgrade/downgrade components and services
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* upgradeAdapter.downgradeNg2Component(MyComponent);
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*
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* let upgradeAdapterRef: UpgradeAdapterRef;
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* let $compile, $rootScope;
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*
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* // We must register the adapter before any calls to `inject()`
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* beforeEach(() => {
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* upgradeAdapterRef = upgradeAdapter.registerForNg1Tests(['heroApp']);
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* });
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*
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* beforeEach(inject((_$compile_, _$rootScope_) => {
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* $compile = _$compile_;
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* $rootScope = _$rootScope_;
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* }));
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*
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* it("says hello", (done) => {
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* upgradeAdapterRef.ready(() => {
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* const element = $compile("<my-component></my-component>")($rootScope);
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* $rootScope.$apply();
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* expect(element.html()).toContain("Hello World");
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* done();
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* })
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* });
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*
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* ```
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*
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* @param modules any AngularJS modules that the upgrade module should depend upon
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* @returns an {@link UpgradeAdapterRef}, which lets you register a `ready()` callback to
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* run assertions once the Angular components are ready to test through AngularJS.
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*/
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registerForNg1Tests(modules?: string[]): UpgradeAdapterRef {
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const windowNgMock = (window as any)['angular'].mock;
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if (!windowNgMock || !windowNgMock.module) {
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throw new Error('Failed to find \'angular.mock.module\'.');
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}
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this.declareNg1Module(modules);
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windowNgMock.module(this.ng1Module.name);
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const upgrade = new UpgradeAdapterRef();
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this.ng2BootstrapDeferred.promise.then(
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(ng1Injector) => { (<any>upgrade)._bootstrapDone(this.moduleRef, ng1Injector); }, onError);
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return upgrade;
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}
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/**
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* Bootstrap a hybrid AngularJS / Angular application.
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*
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* This `bootstrap` method is a direct replacement (takes same arguments) for AngularJS
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* [`bootstrap`](https://docs.angularjs.org/api/ng/function/angular.bootstrap) method. Unlike
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* AngularJS, 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(MyNg2Module);
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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 service to be accessible from Angular.
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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(MyNg2Module);
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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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/**
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* Allows Angular service to be accessible from AngularJS.
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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(MyNg2Module);
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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).$inject = [NG2_INJECTOR];
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return factory;
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}
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|
|
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/**
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* Declare the AngularJS upgrade module for this adapter without bootstrapping the whole
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* hybrid application.
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*
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* This method is automatically called by `bootstrap()` and `registerForNg1Tests()`.
|
|
*
|
|
* @param modules The AngularJS modules that this upgrade module should depend upon.
|
|
* @returns The AngularJS upgrade module that is declared by this method
|
|
*
|
|
* ### Example
|
|
*
|
|
* ```
|
|
* const upgradeAdapter = new UpgradeAdapter(MyNg2Module);
|
|
* upgradeAdapter.declareNg1Module(['heroApp']);
|
|
* ```
|
|
*/
|
|
private declareNg1Module(modules: string[] = []): angular.IModule {
|
|
const delayApplyExps: Function[] = [];
|
|
let original$applyFn: Function;
|
|
let rootScopePrototype: any;
|
|
let rootScope: angular.IRootScopeService;
|
|
const componentFactoryRefMap: ComponentFactoryRefMap = {};
|
|
const upgradeAdapter = this;
|
|
const ng1Module = this.ng1Module = angular.module(this.idPrefix, modules);
|
|
const platformRef = platformBrowserDynamic();
|
|
|
|
this.ngZone = new NgZone({enableLongStackTrace: Zone.hasOwnProperty('longStackTraceZoneSpec')});
|
|
this.ng2BootstrapDeferred = new Deferred();
|
|
ng1Module.factory(NG2_INJECTOR, () => this.moduleRef.injector.get(Injector))
|
|
.constant(NG2_ZONE, this.ngZone)
|
|
.constant(NG2_COMPONENT_FACTORY_REF_MAP, componentFactoryRefMap)
|
|
.factory(NG2_COMPILER, () => this.moduleRef.injector.get(Compiler))
|
|
.config([
|
|
'$provide', '$injector',
|
|
(provide: angular.IProvideService, ng1Injector: angular.IInjectorService) => {
|
|
provide.decorator(NG1_ROOT_SCOPE, [
|
|
'$delegate',
|
|
function(rootScopeDelegate: angular.IRootScopeService) {
|
|
// Capture the root apply so that we can delay first call to $apply until we
|
|
// bootstrap Angular and then we replay and restore the $apply.
|
|
rootScopePrototype = rootScopeDelegate.constructor.prototype;
|
|
if (rootScopePrototype.hasOwnProperty('$apply')) {
|
|
original$applyFn = rootScopePrototype.$apply;
|
|
rootScopePrototype.$apply = (exp: any) => delayApplyExps.push(exp);
|
|
} else {
|
|
throw new Error('Failed to find \'$apply\' on \'$rootScope\'!');
|
|
}
|
|
return rootScope = rootScopeDelegate;
|
|
}
|
|
]);
|
|
if (ng1Injector.has(NG1_TESTABILITY)) {
|
|
provide.decorator(NG1_TESTABILITY, [
|
|
'$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;
|
|
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)
|
|
.then(() => {
|
|
let subscription =
|
|
this.ngZone.onMicrotaskEmpty.subscribe({next: () => rootScope.$digest()});
|
|
rootScope.$on('$destroy', () => { subscription.unsubscribe(); });
|
|
});
|
|
})
|
|
.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'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, REQUIRE_NG1_MODEL],
|
|
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, required: any[],
|
|
transclude: angular.ITranscludeFunction): void => {
|
|
let id = idPrefix + (idCount++);
|
|
(<any>element[0]).id = id;
|
|
|
|
let parentInjector: Injector|ParentInjectorPromise = required[0];
|
|
const ngModel: angular.INgModelController = required[1];
|
|
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, ngModel, 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 / Angular 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 / Angular
|
|
* application has been bootstrapped.
|
|
*
|
|
* The `ready` callback function is invoked inside the Angular zone, therefore it does not
|
|
* require a call to `$apply()`.
|
|
*/
|
|
public ready(fn: (upgradeAdapterRef?: UpgradeAdapterRef) => void) { this._readyFn = fn; }
|
|
|
|
/**
|
|
* Dispose of running hybrid AngularJS / Angular application.
|
|
*/
|
|
public dispose() {
|
|
this.ng1Injector.get(NG1_ROOT_SCOPE).$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;
|
|
}
|