在 Angular 组件中使用 AngularJS 指令 [英] Use AngularJS directive in Angular Component
问题描述
我正在尝试升级 angularjs 指令以将其用于我的 angular 组件.我已经使用了混合 (ng1 + ng2) 环境.我还可以在 angular 中注入 angularjs 服务，并在 angular 组件中使用它们(我实际上在使用 angularjs 1.4.x 时也能正常工作).
I'm trying to upgrade an angularjs directive to use it my angular component. I've gotten the hybrid (ng1 + ng2) environment to work. I can also inject angularjs services in angular and use them in angular components (I actually got this working even with angularjs 1.4.x).
现在我正在尝试在 angular 中使用现有的 angularjs 指令，但不起作用.
Now I'm trying to use an existing angularjs directive in angular, but not working.
作为参考，是我的一些代码片段.
For reference, are some snippets of my codes.
[index.html](my-app 是 Angular 4 的根组件)
...
<body>
<div class="banner">Angular Migration</div>
<my-app>Loading...</my-app>
...
</body>
...
[main.ts](引导代码)
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { UpgradeModule } from '@angular/upgrade/static';
import { Router } from '@angular/router';
import { AppModule } from './app.module';
platformBrowserDynamic().bootstrapModule(AppModule).then(platformRef => {
let upgrade = platformRef.injector.get(UpgradeModule) as UpgradeModule;
upgrade.bootstrap(document.documentElement, ['sampleApp']);
platformRef.injector.get(Router).initialNavigation();
});
[app.module.ts](Angular 4 模块)
import { NgModule, Component } from '@angular/core';
import { HashLocationStrategy, LocationStrategy, CommonModule } from '@angular/common';
import { BrowserModule } from '@angular/platform-browser';
import { UpgradeModule } from '@angular/upgrade/static';
import { RouterModule, Routes, UrlHandlingStrategy } from '@angular/router';
import { HybridUrlHandlingStrategy } from './hybridUrlHandlingStrategy';
import { AppComponent } from './app.component';
export const routes: Routes = [
...
];
@NgModule({
imports: [
CommonModule,
BrowserModule,
UpgradeModule,
RouterModule.forRoot([], { useHash: true, initialNavigation: false })
],
providers: [
{ provide: LocationStrategy, useClass: HashLocationStrategy },
{ provide: UrlHandlingStrategy, useClass: HybridUrlHandlingStrategy },
{ provide: 'appService', useFactory: (i: any) => i.get('appService'), deps: ['$injector'] },
{ provide: 'mdToHtml', useFactory: (i: any) => i.get('mdToHtml'), deps: ['$injector'] }
],
declarations: [
AppComponent
],
bootstrap: [ AppComponent ]
})
export class AppModule {
ngDoBootstrap() { }
}
[app.component.ts](Angular 4 组件)
import { Component } from '@angular/core';
@Component({
selector: 'my-app',
template: `
<router-outlet></router-outlet>
<div ng-view></div>
`,
})
export class AppComponent { }
[app.js](AngularJs 应用)
'use strict';
angular.module('sampleApp', [
'ngRoute',
'app.components.services.appService'
])
.config(function ($routeProvider) {
$routeProvider
.otherwise({
template: ''
});
});
[myStars.js](AngularJs 指令)
'use strict';
angular.module('app.components.directives.myStars', [])
.controller('MyStarsCtrl', function() {
console.log("**** in MyStarsCtrl ")
})
.component('myStars', {
restrict: 'E',
bindings: {
count: '=count'
},
template: '<div>***** M Y S T A R S *****</div>'
});
[myStars.ts](尝试将 myStars 指令迁移到 Angular 4)
import { Directive, ElementRef, Injector, Input, Output, EventEmitter } from '@angular/core';
import { UpgradeComponent } from '@angular/upgrade/static';
@Directive({
selector: 'my-stars'
})
export class MyStarsDirective extends UpgradeComponent {
@Input() count: number;
@Output() clicked: EventEmitter<number>;
constructor(elementRef: ElementRef, injector: Injector) {
super('myStars', elementRef, injector);
}
}
[test.module.ts](Angular 4 测试模块)
import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { RouterModule, Routes} from '@angular/router';
import { TestComponent } from './test.component';
// importing the new MyStarsDirective)
import { MyStarsDirective } from '../../../components/directives/myStars/myStars';
const thisRoute: Routes = [
{
path: 'test/:id',
component: TestComponent
}
];
@NgModule({
declarations: [
TestComponent,
MyStarsDirective, // <<<< adding directive here
],
providers: [],
imports: [
CommonModule,
RouterModule.forChild(thisRoute)
],
exports: [
RouterModule
]
})
export class TestModule {}
[test.component.ts](Angular 4 测试组件)
import { Component, Inject, OnInit } from '@angular/core';
import { ActivatedRoute } from '@angular/router';
import { FormsModule } from '@angular/forms';
import { HybridUrlHandlingStrategy } from '../../../hybridUrlHandlingStrategy';
import { MyStarsDirective } from '../../../components/directives/myStars/myStars';
@Component({
templateUrl: './test.component.html'
})
export class TestComponent implements OnInit {
routeParams: any
myService: any
mdToHtml: any
constructor(
@Inject('myService') myService: any,
@Inject('mdToHtml') mdToHtml: (str: string) => string,
private activatedRoute: ActivatedRoute
) {
this.myService = myService;
this.mdToHtml = mdToHtml;
}
ngOnInit() {
this.routeParams = this.activatedRoute.params.subscribe(params => {
console.log("params", params['groupId'])
...
}
ngOnDestroy() {
this.routeParams.unsubscribe();
}
}
[test.component.html](Angular 4 html)
...
<my-stars></my-stars> <!-- <<<< using directive here -->
...
注意:我还将 angularjs 版本升级到 1.5，只是为了让这个混合应用程序正常工作.
Note: I've also upgrade angularjs version to 1.5 just to make this hybrid app works.
这是我浏览测试组件页面时的错误:
Here's the error when I browser the test component page:
任何帮助将不胜感激.
谢谢.
推荐答案
对于任何感兴趣的人，这里是此错误的解决方案.
For anyone interested, here's the solution to this error.
[test.module.ts](Angular 4 测试模块)
import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { RouterModule, Routes} from '@angular/router';
import { TestComponent } from './test.component';
// importing the new MyStarsDirective)
import { MyStarsDirective } from '../../../components/directives/myStars/myStars';
const thisRoute: Routes = [
{
path: 'test/:id',
component: TestComponent
}
];
@NgModule({
declarations: [
TestComponent,
MyStarsDirective, // <<<< adding directive here
],
providers: [
{
provide: '$scope',
useFactory: i => i.get('$rootScope'),
deps: ['$injector']
}, // <<<< added this section to fix the No provider for $scope error
],
imports: [
CommonModule,
RouterModule.forChild(thisRoute)
],
exports: [
RouterModule
]
})
export class TestModule {}
我在这个链接中找到了答案https://github.com/angular/angular/issues/14993(灵感来自BrunoPoeta)查看 gkalpak 3 月 10 日的评论.
I found the answer in this link https://github.com/angular/angular/issues/14993 (inspired by BrunoPoeta) See comment by gkalpak on March 10.
现在让我们看看我是否可以升级常规指令并使用 1.4.x.
Now let's see if I can upgrade a regular directive and use 1.4.x.
这篇关于在 Angular 组件中使用 AngularJS 指令的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
