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Thread: Registering and Invoking onAvailable function

  1. #1
    Sencha Premium Member
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    Default Registering and Invoking onAvailable function

    In extjs 3.4, I have used following to register function. Here, id is field' unique id.

    Code:
    Ext.lib.Event.onAvailable(id,
         function(page) {
               page.showMyTableState(dataAvailable);
         },
         this
    );
    What is the alternate of "Ext.lib.Event.onAvailable" in Extjs 4.1

    I tried below, but does not help.

    Ext.AbstractManager.onAvailable(id,


    Thanks.

  2. #2
    Sencha Premium User mitchellsimoens's Avatar
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    You souldn't use the AbstractManager, you should use a subclass like the ComponentManager
    Mitchell Simoens @LikelyMitch
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  3. #3
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    Can you please provide me any examples. If I register a function using below method, It never invoke [showMyTableState] method.

    Code:
    Ext.ComponentMgr.onAvailable(id, 
                function(page) {
                        page.showMyTableState(recProgData.DAYSOFWEEK);
                },
                this
        );

  4. #4
    Sencha Premium User evant's Avatar
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    Then it means your component never becomes available. Here's a trivial test case:

    Code:
    Ext.require('*');
    
    Ext.onReady(function() {
    
        new Ext.Component({
            id: 'a'
        });
        
        Ext.ComponentManager.onAvailable('a', function() {
            console.log('already loaded, fire straight away');
        });
        
        
        Ext.ComponentManager.onAvailable('b', function() {
            console.log('not loaded, fire when ready');
        });
        
        new Ext.Component({
            id: 'b'
        });
    
    });
    Twitter - @evantrimboli
    Former Sencha framework engineer, available for consulting.
    As of 2017-09-22 I am not employed by Sencha, all subsequent posts are my own and do not represent Sencha in any way.

  5. #5
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    Thanks, I understand.
    Can I attach onAvailable event on table, as below??
    It does not invoke the method, Is that because I am registering method to HTML table tag and not to panel??

    Code:
        var id = Ext.id();
        var HTML = "<table id=" + id+ " class=\"t-grid-inline-days\"><tbody><tr>";    
        var td = "<td class=\"t-grid-day-off";        
        HTML = HTML + td + "\">" + this.it.myName[0].substring(0,2) + "</td>";        
        HTML = HTML + td + "\">" + this.it.myName[1].substring(0,2) + "</td>";        
        HTML = HTML + "<\/tr></tbody><\/table>";
       
        Ext.AbstractManager.onAvailable(id,
                function(page) {
                        page.showMyTableState(recProgData.DAYSOFWEEK);
                },
                this
        );
    Thanks.

  6. #6
    Sencha Premium User evant's Avatar
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    No, you can't. There's nothing that tracks when the HTML state of the page changes. You'd need to call whatever function after you create it.
    Twitter - @evantrimboli
    Former Sencha framework engineer, available for consulting.
    As of 2017-09-22 I am not employed by Sencha, all subsequent posts are my own and do not represent Sencha in any way.

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