How can i enable use of background elements when the dialog is appeared?

问题

I created a dojo dialog using the example . I work with maps in background. The problem is that when the dialog is appeared, the background is blocked and i can't use the map(the dialog with no underlaying). Is there any way to enable using background when the dialog is appeard on background?

回答1:

You can do it with a little hack :

require(["dijit/Dialog", "dijit/DialogUnderlay", "dojo/domReady!"], function(Dialog, DialogUnderlay){
    //just for the snippets to get the right styling
    document.body.className = "tundra";
  
  
    myDialog = new Dialog({
        title: "My Dialog",
        content: "Test content.",
        style: "width: 300px"
    });
  
    myDialog2 = new Dialog({
        title: "My Dialog",
        content: "Test content.",
        style: "width: 300px"
    });
  
    showDialog2 = function () {
       myDialog2.show().then(function() {
            DialogUnderlay.hide()
            //little hack to avoid JS error when closing the dialog
            DialogUnderlay._singleton.bgIframe = {destroy: function() {}} 
       });
    }

});

<script src="//ajax.googleapis.com/ajax/libs/dojo/1.10.4/dojo/dojo.js"></script>
<link rel="stylesheet" type="text/css" href="//ajax.googleapis.com/ajax/libs/dojo/1.10.4/dojo/resources/dojo.css"> 
<link rel="stylesheet" type="text/css" href="//ajax.googleapis.com/ajax/libs/dojo/1.10.4/dijit/themes/tundra/tundra.css"> 

<button onclick="myDialog.show();">show with underlay</button>

<button onclick="showDialog2();">show without underlay</button>

来源：https://stackoverflow.com/questions/31286343/how-can-i-enable-use-of-background-elements-when-the-dialog-is-appeared