mdDialog:捕获onClose事件 [英] mdDialog: catch the onClose event

问题描述

我正在创建一个有角度的邮箱.而且，当发送消息的弹出窗口关闭时，我需要保存消息草稿.

I'm creating a mailbox in angular. And I would need to save the draft message when the popup to send a message closes.

我知道还有其他选择:

scope.$on("$destroy", function () { saveMessage() });

和:

$mdDialog.show(...).finaly(function(){ saveMessage() });

但两者都不足够:

• 在对话框已关闭时调用第一个.这是由于要求不可接受(有一个iFrame需要打开)
• 第二个控件不在mdDialog控制器的范围之内，它负责弹出窗口的调用者，而它应该在弹出窗口本身中.

因此，我正在寻找一种在弹出窗口实际关闭之前调用函数的方法. 类似于scope.$on("$mdDialogBeforeClose", function () { saveMessage() });

So I'm looking for way to call a function BEFORE the pop-up actually closes. Something like scope.$on("$mdDialogBeforeClose", function () { saveMessage() });

另一个选择是挂接每个close事件.看起来很丑，但可能是解决方案.在那种情况下，我将需要监听转义按钮并在弹出窗口之外单击(虽然我可能会禁用该功能)...

Another option would be to hook every close event. Seems ugly, but might be the solution. In that case I would need to listen to the escape-button and clicking outside the pop-up (Altough I might disable that function)...

还有更好的主意吗?

谢谢！

编辑:

另一个问题:如何捕获转义按键事件?我尝试了<md-dialog aria-label="List dialog" ng-keypress="keyPress($event)">，但它甚至没有被触发...

An addition question: How to catch the escape-keypress event? I tried <md-dialog aria-label="List dialog" ng-keypress="keyPress($event)"> but it's not even triggered...

推荐答案

也许使用onRemoving回调-从文档中

标记

<div ng-controller="MyController as vm" id="popupContainer" ng-cloak="" ng-app="app">
   <md-button class="md-primary md-raised" ng-click="vm.open($event)">
      Custom Dialog
    </md-button>

  <script type="text/ng-template" id="test.html">
    <md-dialog aria-label="Test">
        Hello!
    </md-dialog>
  </script>
</div>

JS

angular.module('app',['ngMaterial', 'ngMessages', 'material.svgAssetsCache'])

.controller('MyController', function($scope, $mdDialog) {
  this.open = function(ev) {
    $mdDialog.show(
      {
        templateUrl: "test.html",
        clickOutsideToClose: true,
        onRemoving: function (event, removePromise) {
          console.log(123);
        }
    });
  };
})

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