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/*
* Private internal class for reading and applying state
*/
YAHOO.ext.LayoutStateManager = function(layout){
// default empty state
this.state = {
north: {},
south: {},
east: {},
west: {}
};
};
YAHOO.ext.LayoutStateManager.prototype = {
init : function(layout, provider){
this.provider = provider;
var state = provider.get(layout.id+'-layout-state');
if(state){
var wasUpdating = layout.isUpdating();
if(!wasUpdating){
layout.beginUpdate();
}
for(var key in state){
if(typeof state[key] != 'function'){
var rstate = state[key];
var r = layout.getRegion(key);
if(r && rstate){
if(rstate.size){
r.resizeTo(rstate.size);
}
if(rstate.collapsed == true){
r.collapse(true);
}else{
r.expand(null, true);
}
}
}
}
if(!wasUpdating){
layout.endUpdate();
}
this.state = state;
}
this.layout = layout;
layout.on('regionresized', this.onRegionResized, this, true);
layout.on('regioncollapsed', this.onRegionCollapsed, this, true);
layout.on('regionexpanded', this.onRegionExpanded, this, true);
},
storeState : function(){
this.provider.set(this.layout.id+'-layout-state', this.state);
},
onRegionResized : function(region, newSize){
this.state[region.getPosition()].size = newSize;
this.storeState();
},
onRegionCollapsed : function(region){
this.state[region.getPosition()].collapsed = true;
this.storeState();
},
onRegionExpanded : function(region){
this.state[region.getPosition()].collapsed = false;
this.storeState();
}
};
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