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，但代码不是等待对话框返回结果，而是直接跳到promise的“then”部分。请看下面的代码：

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;
  }
}

ConfirmDialog.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，因为它可以正常工作，并且所有绑定都可以正确触发。这曾经有效，我更新了aurelia-bundler，这导致了一个运行时错误，所以我恢复到以前版本的bundler。运行时错误已停止，但现在似乎Promise正在短路。我甚至试着从版本控制中签出这个项目，但这种情况一直在发生。我试着清除浏览器缓存，以防那里出了什么问题，但无论我做什么，都会问“为什么会发生这种情况...”在与确认对话框发生任何交互之前始终显示。当我在InfoDialog上点击' OK‘时，确认对话框在下方，然后点击cancel或OK什么也不做。

任何帮助都将不胜感激。

Answer 1

这很可能是因为测试版和RC之间的aurelia对话框中发生了破坏性的变化。

尝试将this.dialogService.open({...}).then(...)更改为this.dialogService.open({...}).whenClosed().then(...)。

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

在Aurelia博客上也有一篇博文：http://blog.aurelia.io/2017/04/27/aurelia-dialog-release-candidate/