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  1. #1
    Sencha User DrunkenBeard's Avatar
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    Default Answered: Extending Ext.Panel

    Answered: Extending Ext.Panel


    Hi,

    Our current application (ST1) uses this architecture : each view is defined as a class extending Ext.Panel, so everytime we need to show a view we just make an instance of it and show it. As an example : we have a Viewport.js files where we define the app.views.Viewport class extending Ext.Panel, so in the launch event of our application we only have to do a "new app.views.Viewport();" to show the viewport.

    Now, I'm trying to migrate the application to ST2 and replicating the new class architecture into our existing one : I've changed the Viewport.js file to read :

    Code:
    Ext.define('app.views.Viewport', {
        extend: 'Ext.Panel',
    
    
        style: 'background-color: #f00',
        fullscreen: true
    }
    and in app.js, I've made the following change :

    Code:
    new Ext.application({
        name: 'app',
    
    
        launch: function() {
            // NOT WORKING !
            Ext.create('app.views.Viewport');
        }
    });
    Viewport.js is included before app.js in index.html (just in case).

    I can't seem to identify the problem but the code doesn't work at all. No errors or anything, just a blank page. If I hardcode the panel directly into app.js, it actually works so the problem is somewhere in the call to Ext.create() :

    Code:
    new Ext.application({
        name: 'app',
    
    
        launch: function() {
            // WORKING !
            Ext.create('Ext.Panel', {
                 style: 'background-color: #f00',
                 fullscreen: true
            });
        }
    });
    Ideas ?

  2. Check out our guides about the new config system. Its available in the docs. Basically you have to move any configuration into a config object when you define a class. Like this:

    PHP Code:
    Ext.define('app.views.Viewport', {
        
    extend'Ext.Panel',

        
    config: {
            
    style'background-color: #f00',
            
    fullscreentrue
        
    }
    }); 

    When you instantiate a class like in your second example, you basically are passing a config object that gets deeply merged with the one in the Panel class definition.

    Also, you should be able to make use of the autoCreateViewport option.

    PHP Code:
    new Ext.application({
        
    name'app',
        
    autoCreateViewporttrue
    }); 
    Let me know if this works.

  3. #2
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    Default


    Check out our guides about the new config system. Its available in the docs. Basically you have to move any configuration into a config object when you define a class. Like this:

    PHP Code:
    Ext.define('app.views.Viewport', {
        
    extend'Ext.Panel',

        
    config: {
            
    style'background-color: #f00',
            
    fullscreentrue
        
    }
    }); 

    When you instantiate a class like in your second example, you basically are passing a config object that gets deeply merged with the one in the Panel class definition.

    Also, you should be able to make use of the autoCreateViewport option.

    PHP Code:
    new Ext.application({
        
    name'app',
        
    autoCreateViewporttrue
    }); 
    Let me know if this works.

  4. #3
    Sencha User DrunkenBeard's Avatar
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    Default


    Yep, works fine Thanks !

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