Hi Tom
Well, you're actually assigning the listener to a invalid variable. You
never assigned a value to "this.loginButton". You should set it in your
addContent method, like this:
this.loginButton = new qx.ui.form.Button("Login");
Note the "this." in front of "loginButton" :)
What kind of development/testing environment do you use? I think you
should have gotten some error messages in your logs? I strongly
recommend you to use Firefox/Firebug.. helps a lot in JS development.
Cheers - Roman
Thomas Schober wrote:
> Hi Roman,
>
> thanks for the help. But the listener is still not executed. I tried the
> things you described already (without adding the third parameter ,this).
> But that did not help. Do you have any other tipps ? When i click the
> button nothing happens.
>
> Regards
> -Tom
>
> Am 18.01.2009 um 17:19 schrieb Roman Schmid:
>
>> Hi
>>
>> You should always add the listener as reference to the function, like
>> this:
>> this.loginListener
>>
>> NOT: this.loginListener()
>> the second example will actually call the function and return the
>> functions return value which is clearly not what you want.
>>
>> Other than that, i advise you to bind the function to "this" (to make
>> sure, the function execution takes place in the right context).
>> Like:
>> this.loginButton.addListener("execute", this.loginListener, this);
>> Notice the third parameter here.
>>
>> Cheers
>> - Roman
>>
>> Thomas Schober wrote:
>>> Hi again :)
>>>
>>> i try to make some sort of model, view , controler with a login window,
>>> but i have a little problem.
>>>
>>> In my Application.js i create an instance of my Controler like this :
>>>
>>> var loginContrl = new firstapp.controler.loginControler();
>>> loginContrl.showLogin();
>>>
>>>
>>> The source of the Controler looks like :
>>>
>>> qx.Class.define("firstapp.controler.loginControler",
>>> {
>>> extend : qx.core.Object,
>>>
>>>
>>>
>>> construct : function()
>>> {
>>> this.loginWindow = new firstapp.ui.loginBox("LoginWindow",null);
>>> },
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> members :
>>> {
>>> loginWindow : null,
>>>
>>>
>>>
>>> performLogin : function()
>>> {
>>> alert("blub");
>>> },
>>>
>>>
>>>
>>> showLogin : function()
>>> {
>>> this.loginWindow.open();
>>> this.loginWindow.addLoginListener(this.performLogin);
>>> }
>>>
>>>
>>>
>>> }
>>>
>>>
>>>
>>> });
>>>
>>> Additionally i have a loginWindow class, that looks like this :
>>>
>>> /*
>>> ************************************************************************
>>>
>>> Copyright:
>>>
>>> License:
>>>
>>> Authors:
>>>
>>> ************************************************************************
>>> */
>>>
>>> /*
>>> ************************************************************************
>>>
>>> #asset(firstapp/*)
>>>
>>> ************************************************************************
>>> */
>>>
>>> /**
>>> * This is the main application class of your custom application
>>> "firstapp"
>>> */
>>> qx.Class.define("firstapp.ui.loginBox",
>>> {
>>> extend : qx.ui.window.Window,
>>>
>>>
>>>
>>> /*
>>>
>>> *****************************************************************************
>>> MEMBERS
>>>
>>> *****************************************************************************
>>> */
>>> construct : function(name,icon)
>>> {
>>> this.base(arguments,name,icon);
>>> this.set
>>> ({
>>> modal : true,
>>> showMinimize : false,
>>> showMaximize : false,
>>> allowMaximize : false,
>>> allowClose : false
>>>
>>>
>>>
>>> });
>>>
>>>
>>>
>>> this.addContent();
>>> },
>>>
>>>
>>>
>>> members :
>>> {
>>>
>>>
>>>
>>> loginButton : null,
>>> loginListener : null,
>>>
>>>
>>>
>>> /**
>>> * This method contains the initial application code and gets called
>>> * during startup of the application
>>> */
>>> addContent : function()
>>> {
>>> var windowLayout = new qx.ui.layout.VBox(10);
>>> this.setLayout(windowLayout);
>>> this.setMinWidth(300);
>>> var loginField = new qx.ui.form.TextField("Enter
>>> Login").set({width: 260});
>>> var passField = new qx.ui.form.PasswordField("Enter
>>> Passw").set({width : 260});
>>> loginButton = new qx.ui.form.Button("Login");
>>> this.add(loginField);
>>> this.add(passField);
>>> this.add(loginButton);
>>> this.addListenerOnce("resize", this.center, this);
>>> },
>>>
>>>
>>>
>>> addLoginListener : function (listener)
>>> {
>>> this.loginListener = listener;
>>> this.loginButton.addListener("execute",this.loginListener());
>>>
>>> }
>>> }
>>> });
>>>
>>> When the loginControler is instantiated, it creates an instance of the
>>> login window, registers a listener for the button and then it opens the
>>> window. But the registered listener is not called, when i press the
>>> button. Nothing happens ? Is it not allowed to hand over a function
>>> pointer from another class as listener ?
>>>
>>> Thank you
>>> Tom
>>>
>>>
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