[OpenLayers-Users] Question on the TYPE_BUTTON Control

[Andreas Hocevar]

Hi,



Bill Thoen wrote:
> I'm using  a couple of buttons on a control panel to open and display 
> dialog forms. I just need a pushbutton control to do this as it's a 
> one-time action event --push the button and display the form to Create, 
> Review, Update or Delete data i.e. I need a classic CRUD interface for a 
> couple of tables.
>
> Anyway, when the tool type is set to TYPE_BUTTON, the button doesn't 
> push in and out like I was expecting. Otherwise things work fine. The 
> form comes up and does the right things. So am I missing something about 
> the button control to get it to use two icons like the TYPE_TOGGLE and 
> TYPE_TOOL controls or is this single button icon behavior a WAD (Works 
> As Designed) to keep the tool simple?
>   

The difference between TYPE_BUTTON controls and others in a control 
panel is that TYPE_BUTTON controls don't activate and deactivate, they 
just trigger. And changing the css classes happens on activate and 
deactivate.

If you want a visual feedback for mousedown and mouseup, you would have 
to do something like this: change the Control.Panel to use 
mousedown/mouseup events instead of click, call trigger() on mouseup and 
activate() on mousedown, and call deactivate() in trigger() to change 
the css class back.

Regards,
Andreas.

> Thx,
> - Bill Thoen
>
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>   


-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.