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Thread: is it possible to stop event propagation form controller?

  1. #1
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    Exclamation Answered: is it possible to stop event propagation form controller?

    i have grid with defined itemdblclick event handler(that would be default behavior), i also have specified in Controller.control() other handler for event on that particular grid.

    I d wish to have possibility to stop event propagation form the controller and not from the component. Now it works other way around. (returning false in component will prevent controller.controll handling)

    Can this be done?

  2. Controllers are event driven but if there isn't a cancelable event then there isn't much a Controller can do. You can create an override to add a before event if you need one. Then a Controller can cancel it.

  3. #2
    Sencha - Sr Software Engineer mitchellsimoens's Avatar
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    All events should pass in the EventObject which if you execute stopEvent() then it should stop the event from bubbling up.
    Mitchell Simoens @LikelyMitch
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  4. #3
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    my question is about direction of bubling.

    im in controller and heve my listener fired then i can stop propagation BUT event handler defined int he component itself fires before it. so it wont be stopped (it already happened).

    am i wrong?

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    Sencha - Sr Software Engineer mitchellsimoens's Avatar
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    If it is being listened internally by a widget, unless there is a before event that you can return false to stop it, there is no way.
    Mitchell Simoens @LikelyMitch
    Sencha Inc, Senior Software Engineer
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    ok. so im a little disappointed in controlling possibilities of controller. I guess it wont be changed?

  7. #6
    Sencha - Sr Software Engineer mitchellsimoens's Avatar
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    Controllers are event driven but if there isn't a cancelable event then there isn't much a Controller can do. You can create an override to add a before event if you need one. Then a Controller can cancel it.
    Mitchell Simoens @LikelyMitch
    Sencha Inc, Senior Software Engineer
    ________________
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    Check out my GitHub, lots of nice things for Ext JS and Sencha Touch
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