load - Applying loadMask() to a single element in extjs? -

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how apply loadmask 1 element, , not whole browser width-height?

default
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here, 1 element masked, , messagebox in center, inside element , not whole display...
enter image description here


ideas?

edit:

@molecule , thanks, when data loading source, need :

{     xtype:"button",     text:"alert",     handler: function(){          ext.msg.show({         title:'save changes?',         msg: 'you closing ?',         buttons: ext.msg.yes,         setloading: // here somehow mask parent element, , position alertbox...     }  }

every component has it's own loadmask property. can use calling yourcomponent.setloading. here fiddle illustrate i'm talking about.

another way using new ext.loadmask(yourcomponent.el, {msg:"please wait..."});. can @ usage in fiddle.

update

here code example shows how apply extjs4 loadmask , messagebox specified widget

ext.create('ext.panel.panel', {     width: 600,     height: 400,     title: 'border layout',     layout: 'border',     items: [{         title: 'west region collapsible',         region:'west',         xtype: 'panel',         width: 400,         id: 'west-region-container',         layout: 'fit'     },{         title: 'center region',         region: 'center',         xtype: 'panel',         layout: 'fit',     }],     renderto: ext.getbody() }); var mymask = new ext.loadmask(ext.getcmp('west-region-container').el, {usemsg: false}); mymask.show(); var msg = ext.msg.show({     title:'save changes?',     msg: 'bla-bla',     buttons: ext.msg.ok,     modal: false }); msg.alignto(ext.getcmp('west-region-container').el, 'c-c');

and here try-it-yourself example.


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