在Typescript中创建AngularJS 1.5组件的最佳做法是什么？

Question

我正在试验.component()Angular 1.5中的语法.

似乎最新的方式是在组件中对控制器进行内联编码,而不是在单独的文件中编码,并且我可以看到组件样板文件最小的优点.

问题是我将控制器编码为打字稿类,并希望继续这样做,因为这似乎与Angular2一致.

我最大的努力是这样的:

export let myComponent = {
  template: ($element, $attrs) => {
    return [
      `<my-html>Bla</my-html>`
    ].join('')
  },
  controller: MyController
};
class MyController {

}

它有效,但它并不优雅.有没有更好的办法？

Answer 1

如果您想完全采用Angular 2方法,可以使用:

module.ts

import { MyComponent } from './MyComponent';

angular.module('myModule', [])
  .component('myComponent', MyComponent);

MyComponent.ts

import { Component } from './decorators';

@Component({
  bindings: {
    prop: '<'
  },
  template: '<p>{{$ctrl.prop}}</p>'
})
export class MyComponent {

   prop: string;

   constructor(private $q: ng.IQService) {}

   $onInit() {
     // do something with this.prop or this.$q upon initialization
   }
}

decorators.ts

/// <reference path="../typings/angularjs/angular.d.ts" />

export const Component = (options: ng.IComponentOptions) => {
  return controller => angular.extend(options, { controller });
};

Answer 2

我使用一个简单的Typescript装饰器来创建组件

function Component(moduleOrName: string | ng.IModule, selector: string, options: {
  controllerAs?: string,
  template?: string,
  templateUrl?: string
}) {
  return (controller: Function) => {
    var module = typeof moduleOrName === "string"
      ? angular.module(moduleOrName)
      : moduleOrName;
    module.component(selector, angular.extend(options, { controller: controller }));
  }
}

所以我可以像这样使用它

@Component(app, 'testComponent', {
  controllerAs: 'ct',
  template: `
    <pre>{{ct}}</pre>
    <div>
      <input type="text" ng-model="ct.count">
      <button type="button" ng-click="ct.decrement();">-</button>
      <button type="button" ng-click="ct.increment();">+</button>
    </div>
  `
})
class CounterTest {
  count = 0;
  increment() {
    this.count++;
  }
  decrement() {
    this.count--;
  }
}

你可以在http://jsbin.com/jipacoxeki/edit?html,js,output尝试一下工作的jsbin

Answer 3

这是我使用的模式:

ZippyComponent.ts

import {ZippyController} from './ZippyController';

export class ZippyComponent implements ng.IComponentOptions {

    public bindings: {
        bungle: '<',
        george: '<'
    };
    public transclude: boolean = false;
    public controller: Function = ZippyController;
    public controllerAs: string = 'vm'; 
    public template: string = require('./Zippy.html');
}

ZippyController.ts

export class ZippyController {

    bungle: string;
    george: Array<number>;

    static $inject = ['$timeout'];

    constructor (private $timeout: ng.ITimeoutService) {
    }
}

Zippy.html

<div class="zippy">
    {{vm.bungle}}
    <span ng-repeat="item in vm.george">{{item}}</span>
</div>

main.ts

import {ZippyComponent} from './components/Zippy/ZippyComponent';

angular.module('my.app', [])
    .component('myZippy', new ZippyComponent());

Answer 4

我正在努力解决同样的问题并将我的解决方案放在本文中:

http://almerosteyn.github.io/2016/02/angular15-component-typescript

module app.directives {

  interface ISomeComponentBindings {
    textBinding: string;
    dataBinding: number;
    functionBinding: () => any;
  }

  interface ISomeComponentController extends ISomeComponentBindings {
    add(): void;
  }

  class SomeComponentController implements ISomeComponentController {

    public textBinding: string;
    public dataBinding: number;
    public functionBinding: () => any;

    constructor() {
      this.textBinding = '';
      this.dataBinding = 0;
    }

    add(): void {
      this.functionBinding();
    }

  }

  class SomeComponent implements ng.IComponentOptions {

    public bindings: any;
    public controller: any;
    public templateUrl: string;

    constructor() {
      this.bindings = {
        textBinding: '@',
        dataBinding: '<',
        functionBinding: '&'
      };
      this.controller = SomeComponentController;
      this.templateUrl = 'some-component.html';
    }

  }

  angular.module('appModule').component('someComponent', new SomeComponent());

}

Answer 5

我正在使用以下模式来使用带有打字稿的angular 1.5 组件

class MyComponent {
    model: string;
    onModelChange: Function;

    /* @ngInject */
    constructor() {
    }

    modelChanged() {
        this.onModelChange(this.model);
    }
}

angular.module('myApp')
    .component('myComponent', {
        templateUrl: 'model.html',
        //template: `<div></div>`,
        controller: MyComponent,
        controllerAs: 'ctrl',
        bindings: {
            model: '<',
            onModelChange: "&"
        }
    });