Hi,
I am using the "changeSelected" event on qx.ui.tabview.TabView.
Now, when I write e.stopPropagation(); in my event listener function,
Firebug gives an error stating :
Assertion error! Cannot stop propagation on a non bubbling event:
changeSelected: Called assertTrue with 'false'
I made my event as a bubbling event as e.setBubbles(true); and then
called e.stopPropagation();. Now, I don't get any error but my event
lister gets called twice.
My tabview initially has 2 tabs - Actual and dummy. The eventlistener is
set on Tabview and the Actual tab is selected by default. When the dummy
tab is clicked, my eventlistener checks which tab is clicked (based on
page label). If dummy is clicked, it deletes the dummy tab, adds a new
tab and then inserts dummy to its end (functionality similar to that in
IE7).
If I write e.stopPropagation(), I get the desired functionality but with
errors in Firebug. If I don't write e.stopPropagation() or I write
e.setBubbles(true); e.stopPropagation();, then on clicking dummy tab, 2
tabs get added instead of 1 (ie. eventListener gets called twice), which
I don't want.
Here is a snippet of my code :
this._tabView.addListener("changeSelected",this._choosePage,this);
//in class constructor
_choosePage: function(e){ //member function
var tabView = e.getTarget();
var pg = tabView.getSelected();
alert(pg.getLabel());
if(pg.getLabel()== ""){ //if dummy tab is clicked
this._dummytab(); //deleting dummy tab and add a new tab
e.setBubbles(true); //Writing this line prevents the Firebug error
but calls the eventListener twice and causes 2 tabs to get added instead
of 1
e.stopPropagation(); // Writing just this without above line adds
just 1 tab (desired) but causes Firebug error
this._tabView.addListener("changeSelected",this._choosePage,this);
//since listener was removed
}
}
_dummytab: function(){
this._tabView.removeListener("changeSelected",this._choosePage,this);
//else tabView.remove() calls the eventListener _choosePage() again
this._tabView.remove(targetPage);
this._addtab(); //adds a new tab and then dummy tab
}
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