Close javascript-popup-window from anywhere

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广开言路
广开言路 2021-01-28 21:43

I\'m trying to build a popup that can be closed from anywhere.

On the Mainpage you have the option to open it. At any point while browsing the mainpage the user shall be

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  • 2021-01-28 21:54

    If you just need the popup to be closed automatically when you leave the main page (as suggested in a comment), you just need to do the following:

    $(window).unload(closepopup);
    
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  • 2021-01-28 22:04

    If you are trying to close it from an iframe...

    top.my_window.close();
    

    I believe you need to go out a level since that variable is set on the parent window. Not in the iframe.

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  • 2021-01-28 22:11

    There are three solutions I propose depending on what the problem actually is.

    1) closepopup() does not work on other pages

    If you need to close the popup from page B when it was opened from page A the following code will allow you to obtain a reference to the popup from page B and close it. Reference: Find window previously opened by window.open

    PageA.html

    <script>
     function popuponclick()
       {
          my_window = window.open("http://google.com", "mywindow","status=1,width=350,height=150");
       }
    
       function closepopup()
       {
          my_window.close ();
       }
    </script>
    
    <a href="javascript:popuponclick()">Open window...</a></br>
    <a href="PageB.html">Go to Page B</a>
    
    </body>
    </html>
    

    PageB.html

    <html>
    <body>
    
    <script>
       function closepopup()
       {
          var popupPlayer= window.open('', 'mywindow', 'status=1,width=350,height=150') ;
          popupPlayer.focus();
          popupPlayer.close();
       }
    </script>
    
    <a href="javascript:closepopup()">Close window...</a></br>
    
    </body>
    </html>
    

    2) closepopup() does not work on the same page as window is opened

    A global reference to my_window is needed so you would need to change the code like this:

         var my_window; //global reference here
        function popuponclick()
           {
              my_window = window.open("", "mywindow","status=1,width=350,height=150");
           }
    
           function closepopup()
           {
              my_window.close ();
           }
    

    3) Final third solution using frames

    You separate your page into 1 frames (one which is 100%) and another that is 0%.

    You add the window open/close code in the parent frame. Than you call the window control code via cross frame javascript commands.

    Frames HTML Containing Javascript

    <html>
    <head>
    <title>My example</title>
    
    <script>
    
      var my_window;
    
     function popuponclick()
       {
          my_window = window.open("", "mywindow","status=1,width=350,height=150");
       }
    
       function closepopup()
       {
          my_window.close ();
       }
    </script>
    
    </head>
    <frameset cols="100%,0%">
    <frame src="frame.html"/>
    <frame/>
    </frameset>
    </html>
    

    Internal Frame (frame.html) - calling parent Javascript

    <html>
    <body>
    <a href="javascript:parent.popuponclick()"> Open Window </a><br/>
    <a href="javascript:parent.closepopup()"> Close Window </a><br/>
    <a href="javascript:location.href=location.href"> Refresh Frame (and try again)</a><br/>
    </body>
    </html>
    
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