flash blocking javascript events
- by jedierikb
this is an edit of the original post now that I better understand the problem. now with source code!
In IE, if body (or another html div has focus), then you keypress & click on flash at the same time, then release... a keyup event is never fired. It is not fired in javascript or in flash. Where is this keyup event?
This is the order of event firing you get instead:
javascriptKeyEvent:bodyDn ** currentFocuedElement: body
javascriptKeyEvent:docDn ** currentFocuedElement: body
actionScriptEvent::activate ** currentFocuedElement: [object]
actionScriptEvent::mouseDown ** currentFocuedElement: [object]
actionScriptEvent::mouseUp ** currentFocuedElement: [object]
Subsequent keyup and keydown events are captured by flash, but that initial keyUp is never fired.. anywhere. And I need that keyup!
Here is the html/javascript:
<html>
<head>
<script type="text/javascript" src="p.js"></script>
<script type="text/javascript" src="swfobject.js"></script>
<script>
function ic( evt )
{ Event.observe( $("f1"), 'keyup', onKeyHandler.bindAsEventListener( this, "f1Up" ) );
Event.observe( $("f2"), 'keyup', onKeyHandler.bindAsEventListener( this, "f2Up" ) );
Event.observe( document, 'keyup', onKeyHandler.bindAsEventListener( this, "docUp" ) );
Event.observe( $("body"), 'keyup', onKeyHandler.bindAsEventListener( this, "bodyUp" ) );
Event.observe( window, 'keyup', onKeyHandler.bindAsEventListener( this, "windowUp" ) );
Event.observe( $("f1"), 'keydown', onKeyHandler.bindAsEventListener( this, "f1Dn" ) );
Event.observe( $("f2"), 'keydown', onKeyHandler.bindAsEventListener( this, "f2Dn" ) );
Event.observe( document, 'keydown', onKeyHandler.bindAsEventListener( this, "docDn" ) );
Event.observe( $("body"), 'keydown', onKeyHandler.bindAsEventListener( this, "bodyDn" ) );
Event.observe( window, 'keydown', onKeyHandler.bindAsEventListener( this, "windowDn" ) );
Event.observe( "clr", "mousedown", clearHandler.bindAsEventListener( this ) );
swfobject.embedSWF( "tmp.swf",
"f2",
"100%",
"20px",
"9.0.0.0", null, {}, {}, {} );
}
function clearHandler( evt )
{ clear( );
}
function clear( )
{ $("log").innerHTML = "";
}
function onKeyHandler( evt, dn )
{ logIt( "javascriptKeyEvent:"+dn );
}
function AS2JS( wha )
{ logIt( "actionScriptEvent::" + wha );
}
function logIt( k )
{
var id = document.activeElement;
if (id.identify)
{ id = id.identify();
}
$("log").innerHTML = k + " ** focuedElement: " + id + "<br>" + $("log").innerHTML;
}
Event.observe( window, 'load', ic.bindAsEventListener(this) );
</script>
</head>
<body id="body">
<div id="f1"><div id="f2" style="width:100%;height:20px; position:absolute; bottom:0px;"></div></div>
<div id="clr" style="color:blue;">clear</div>
<div id="log" style="overflow:auto;height:200px;width:500px;"></div>
</body>
</html>
Here is the as3 code:
package
{
import flash.display.Sprite;
import flash.display.StageAlign;
import flash.display.StageScaleMode;
import flash.events.KeyboardEvent;
import flash.events.MouseEvent;
import flash.events.Event;
import flash.external.ExternalInterface;
public class tmpa extends Sprite
{
public function tmpa( ):void
{
extInt("flashInit");
stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.addEventListener( KeyboardEvent.KEY_DOWN, keyDnCb, false, 0, true );
stage.addEventListener( KeyboardEvent.KEY_UP, keyUpCb, false, 0, true );
stage.addEventListener( MouseEvent.MOUSE_DOWN, mDownCb, false, 0, true );
stage.addEventListener( MouseEvent.MOUSE_UP, mUpCb, false, 0, true );
addEventListener( Event.ACTIVATE, activateCb, false, 0, true );
addEventListener( Event.DEACTIVATE, dectivateCb, false, 0, true );
}
private function activateCb( evt:Event ):void
{ extInt("activate");
}
private function dectivateCb( evt:Event ):void
{ extInt("deactivate");
}
private function mDownCb( evt:MouseEvent ):void
{ extInt("mouseDown");
}
private function mUpCb( evt:MouseEvent ):void
{ extInt("mouseUp");
}
private function keyDnCb( evt:KeyboardEvent ):void
{ extInt( "keyDn" );
}
private function keyUpCb( evt:KeyboardEvent ):void
{ extInt( "keyUp" );
}
private function extInt( wha:String ):void
{ try
{ ExternalInterface.call( "AS2JS", wha );
}
catch (ex:Error)
{ trace('ex: ' + ex);
}
}
}
}
