如何查看是否加载了Dojo对话框？

I am running a function that needs to close a Dojo dialog if it is loaded. How do I check if a dojo dialog is running? Do I use pure JavaScript and check by id if it is undefined?

我正在运行一个函数,如果它被加载,需要关闭一个Dojo对话框。如何检查dojo对话框是否正在运行?如果未定义,我是否使用纯JavaScript并按ID检查?

if (dijit.byId("blah") !== undefined) { 
     destroyRecursive dijit;
}

Or do I use a property of the dialog object like:

或者我使用对话框对象的属性,如:

isFocusable method
isLoaded property

2 个解决方案

#1

Dialog provides two properties you might want to check: isLoaded and open. By digging the code you'll find the following descriptions:

Dialog提供了两个您可能想要检查的属性:isLoaded和open。通过挖掘代码,您将找到以下描述:

open: True if Dialog is currently displayed on screen.

open:如果屏幕上当前显示Dialog,则为True。

isLoaded: True if the ContentPane has data in it, either specified during initialization (via href or inline content), or set via attr('content', ...) / attr('href', ...) False if it doesn't have any content, or if ContentPane is still in the process of downloading href.

isLoaded:如果ContentPane中包含数据,则为True,在初始化期间指定(通过href或内联内容),或者通过attr('content',...)/ attr('href',...)设置,如果它,则为False没有任何内容,或者ContentPane仍在下载href的过程中。

So, you could just:

所以,你可以:

var dialog = dijit.byId("blah");
if( dialog.open ) {
    dialog.destroy();
}

#2

Do you want to hide it or destroy it?

你想隐藏它还是摧毁它?

If you just want to show/hide it you can do the following:

如果您只想显示/隐藏它,您可以执行以下操作:

var dialog = dijit.byId('blah');
if (dialog) {
  if (dialog.open) {
    dialog.hide();
  }
  else {
     dialog.show();
  }
}

If you wanted to destory it to free up memory:

如果你想破坏它以释放内存:

var dialog = dijit.byId('blah');
dialog.destory();

I think destroy is recursive since it calls its parent destroy method and one of its parents is dijit.layout.ContentPane.

我认为destroy是递归的,因为它调用它的父destroy方法,其父节点之一是dijit.layout.ContentPane。

#1