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angualr实现鼠标拖拽排序功能

angualr实现鼠标拖拽排序功能

作者: 4ea0af17fd67 | 来源:发表于2018-08-28 15:49 被阅读425次

    angualr2以上版本
    我使用的是angualr6.x最新版

    ng2-dragula

    https://github.com/valor-software/ng2-dragula

    1.安装依赖
    npm install ng2-dragula
    # or
    yarn add ng2-dragula
    
    2.添加这一行到你的 polyfills.ts:
    (window as any).global = window;
    
    3.引入模块    DragulaModule.forRoot() 如下:
    import { DragulaModule } from 'ng2-dragula';
    @NgModule({
      imports: [
        ...,
        DragulaModule.forRoot()
      ],
    })
    export class AppModule { }
    
    4.引入公用css node_modules/dragula/dist/dragula.css
    或者直接复制所有css放styles.scss文件
    
    5.使用指令,给一个自定义名称,随意的字符串就行,标识一个div的内容可以拖拽,dragula="div1"和 [dragula]="Vampires"意义等同 代码如下
    <ul dragula="div1">
      <li>Dracula</li>
      <li>Kurz</li>
      <li>Vladislav</li>
      <li>Deacon</li>
    </ul>
    
    6.多个div需要拖拽如下
    <div dragula="div1">
    
    </div>
    <div dragula="div2">
    
    </div>
    <div dragula="div3">
    
    </div>
    7. 如果需要双向绑定拖拽的数据 [(dragulaModel)]
    
     [(dragulaModel)]等同于 [dragulaModel]="vampires" (dragulaModelChange)="vampires = $event" 类似ng自带的[(ngModel)]
    
    <ul dragula="VAMPIRES" [(dragulaModel)]="vampires">
      <li *ngFor="let vamp of vampires">
        {{ vamp.name }} likes {{ vamp.favouriteColor }}
      </li>
    </ul>
    等同于
    <ul dragula="VAMPIRES" [dragulaModel]="vampires" (dragulaModelChange)="vampires = $event">
      ...
    </ul>
    
    8.拖拽过程中的事件订阅
    import { Subscription } from 'rxjs';
    import { DragulaService } from 'ng2-dragula';
    
    export class MyComponent {
      // RxJS Subscription is an excellent API for managing many unsubscribe calls.
      // See note below about unsubscribing.
      subs = new Subscription();
    
      constructor(private dragulaService: DragulaService) {
    
        // These will get events limited to the VAMPIRES group.
    
        this.subs.add(this.dragulaService.drag("VAMPIRES")
          .subscribe(({ name, el, source }) => {
            // ...
          })
        );
        this.subs.add(this.dragulaService.drop("VAMPIRES")
          .subscribe(({ name, el, target, source, sibling }) => {
            // ...
          })
        );
        // some events have lots of properties, just pick the ones you need
        this.subs.add(this.dragulaService.dropModel("VAMPIRES")
          // WHOA
          // .subscribe(({ name, el, target, source, sibling, sourceModel, targetModel, item }) => {
          .subscribe(({ sourceModel, targetModel, item }) => {
            // ...
          })
        );
    
        // You can also get all events, not limited to a particular group
        this.subs.add(this.dragulaService.drop()
          .subscribe(({ name, el, target, source, sibling }) => {
            // ...
          })
        );
      }
    
      ngOnDestroy() {
        // destroy all the subscriptions at once
        this.subs.unsubscribe();
      }
    }
    

    还有一个非常棒的插件可以看看
    https://github.com/xieziyu/angular2-draggable

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