Aurelia Dialog 在对话框返回之前运行“then”

Question

我有一个启动确认对话框的视图，但不是等待对话框返回结果，而是直接跳转到承诺的“then”部分。见下面的代码：

ConfirmDialog.ts

import { inject } from 'aurelia-framework';
import { DialogController } from 'aurelia-dialog';

@inject(DialogController)
export class ConfirmDialog {
  private message: string;
  private controller: DialogController;

  constructor(controller: DialogController) {
    this.controller = controller;
  }

  public activate(message: string) {
    this.message = message;
  }
}

确认对话框.html

<template>
  <div tabindex="-1" role="dialog">
    <div class="modal-dialog">
      <div class="modal-content">
        <div class="modal-header">
          <button type="button" click.trigger="controller.cancel()" class="close" aria-label="Close"><span aria-hidden="true">&times;</span></button>
          <h4 class="modal-title">Confirmation</h4>
        </div>
        <div class="modal-body">
          ${message}?
        </div>
        <div class="modal-footer">
          <button type="button" class="btn btn-default" click.trigger="controller.cancel()">No!</button>
          <button type="button" class="btn btn-danger" click.trigger="controller.ok()">Yes</button>
        </div>
      </div><!-- /.modal-content  -->
    </div><!-- /.modal-dialog -->
  </div><!-- /.modal -->
</template>

SomeView.ts

import * as moment from 'moment';
import { inject, singleton } from 'aurelia-framework';
import { DialogService } from 'aurelia-dialog';
import { ConfirmDialog } from '../components/modal/confirmDialog';
import { InfoDialog } from '../components/modal/infoDialog';
import { StateStore } from '../common/StateStore';
import { Routing } from '../common/routing';

@singleton()
@inject(Routing, StateStore, DialogService)
export class SomeView {
    private routing: Routing;
    private commonState: StateStore;
    private dialogService: DialogService;

    constructor(routing: Routing, stateStore: StateStore, dialogService: DialogService) {
        this.routing = routing;
        this.commonState = stateStore;
        this.dialogService = dialogService;
    }

    public someButtonClickHandler(someArg: SomeType) {
      if (!this.routing.auth.authenticated) {
        this.routing.router.navigate('#/login');
      }
      this.dialogService.open({
        viewModel: ConfirmDialog,
        model:
          'Do you wish to continue'
      }).then((response) => {
        if (response.wasCancelled) {
          return;
        }

        this.dialogService.open({
          viewModel: InfoDialog,
          model: 'Why is this happening..'
        });
      });
    }
}

我省略了视图的 html，因为它可以工作并且所有绑定都正确触发。这曾经奏效，我更新了导致运行时错误的 aurelia-bundler，因此我恢复到先前版本的 bundler。运行时错误停止了，但现在似乎 Promise 被短路了。我什至尝试从版本控制中检查项目，但这种情况一直在发生。尝试清除浏览器缓存以防出现问题，但无论我做什么，“为什么会发生这种情况......”总是在确认对话框发生任何交互之前显示。当我在 InfoDialog 上单击“确定”时，确认对话框在下方，然后单击取消或确定不执行任何操作。

任何帮助，将不胜感激。

Answer 1

这很可能是因为 beta 和 RC 之间的 aurelia-dialog 发生了重大变化。

尝试更改this.dialogService.open({...}).then(...)为this.dialogService.open({...}).whenClosed().then(...).

请参阅 RC-1 的发行说明：https : //github.com/aurelia/dialog/releases/tag/1.0.0-rc.1。

Aurelia 博客中还有一篇博文：http : //blog.aurelia.io/2017/04/27/aurelia-dialog-release-candidate/