Jim Hunter schrieb:
> I use this.info <http://this.info> inside event handlers, at least
> with the handling of 'completed' event of a Request, all the time. The
> one thing to remember is that the 'this' does not refer to the object
> that fired the event, it refers to the event object (unless you pass
> in a reference to the firing object as the last param of the event
> call. Give an example of code that does not work and maybe we can get
> it working.
>
> Jim
>
Hi Jim,
good to know that this must be a special case then. It is not easy to
isolate the problem because the event handler is in a mixin and calls a
function in another mixin.
It goes like this:
var rpc = new qx.io.remote.Rpc();
[...]
var _this = this;
[...]
// start request
var callbackFunc = function(data, ex, id) {
[...]
request.reset();
request.dispose();
request = null; // dispose rpc object
if (ex == null)
{
[...]
// handle received data
if ( data.result )
{
_this.__handleDataReceived (data.result);
}
ok, then we are here:
__handleDataReceived : function(result)
{
[....]
this.setWidgetData(result);
moving onto here:
setWidgetData : function (data)
{
[...]
// extended setter using a hash map
for ( var key in data )
{
switch (key)
{
[...]
/* qx.ui.treeVirtual.SimpleTreeDataModel */
case "treedatamodel":
if (! this instanceof qx.ui.treevirtual.TreeVirtual )
{
this.error("Rpc datatype 'treedatamodel' only valid for
qx.ui.treevirtual.TreeVirtual!");
return false;
}
this.handleServerData(data.treedatamodel);
break;
which takes us to a different mixin:
handleServerData : function( data )
{
this.info("This won't be printed");
this.warn("Neither will this show up");
this.error("This will silently end execution");
Shouldn't it make no difference which object "this" refers to? In my
case, it is a TreeVirtual object.
But I also tried qx.core.Init.getInstance().warn("I want this to show!")
with no effect.
Maybe you have an idea...
Christian
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