Question

Event Listener - problem listening to key combinations

Asked by: LeeHenry

The below code listens to key combinations in my app. I am using
prototype (not my decision), but I am open to using other
alternatives. The problem i'm having is that when using Event.observe
to listen for key combinations it doesn't always catch my key strokes.
If I press on one of the tabs in my app, it listens again. These tabs
represent the content pages in my app, which are dynamically
generated, and are iframe elements. I believe that has
somethign to do with it, but i'm not familiar with prototype or the
Event Model all that much. Any help would be appreciated! See my code
example below. 

Event.observe(window, 'load', function() { 
        Event.observe(document, 'keypress', function(e){ 
 
 
                //listen for key events 
                        var targ = e ? e : window.event; 
                key = targ.keyCode ? targ.keyCode : targ.charCode; 
 
 
                        //handle combination 
                       if(targ.altKey == true && (key == 67)) { 
                 HandleEvent(key); 
                        } 
 
 
        }); 
}

                                  
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Asked On
2008-02-15 at 11:37:49ID23167044
Tags

javascript

,

IE

Topics

JavaScript

,

JScript

Participating Experts
1
Points
500
Comments
1

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Answers

 

by: bdichiaraPosted on 2008-02-15 at 14:15:28ID: 20906523

You will probably need to setup an event listener for your iframe objects as well. Or setup the same code on the page loaded into the iframe. Problem is the HandleEvent function will need to be on both pages and the function inside the iframe will probably need to reference the parent window for any actions not directed to itself, but the main page.

20120131-EE-VQP-002

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