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LayoutManager.as
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2009-02-12
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15KB
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423 lines
package mx.managers
{
import flash.display.Stage;
import flash.events.Event;
import flash.events.EventDispatcher;
import mx.core.ApplicationGlobals;
import mx.core.UIComponent;
import mx.core.mx_internal;
import mx.events.FlexEvent;
import mx.managers.layoutClasses.PriorityQueue;
use namespace mx_internal;
public class LayoutManager extends EventDispatcher implements ILayoutManager
{
mx_internal static const VERSION:String = "3.0.0.0";
private static var instance:LayoutManager;
private var invalidateClientPropertiesFlag:Boolean = false;
private var invalidateDisplayListQueue:PriorityQueue;
private var updateCompleteQueue:PriorityQueue;
private var invalidateDisplayListFlag:Boolean = false;
private var invalidateClientSizeFlag:Boolean = false;
private var invalidateSizeQueue:PriorityQueue;
private var originalFrameRate:Number;
private var invalidatePropertiesFlag:Boolean = false;
private var invalidatePropertiesQueue:PriorityQueue;
private var invalidateSizeFlag:Boolean = false;
private var callLaterPending:Boolean = false;
private var _usePhasedInstantiation:Boolean = false;
private var callLaterObject:UIComponent;
private var targetLevel:int = 2.147483647E9;
public function LayoutManager()
{
updateCompleteQueue = new PriorityQueue();
invalidatePropertiesQueue = new PriorityQueue();
invalidateSizeQueue = new PriorityQueue();
invalidateDisplayListQueue = new PriorityQueue();
super();
}
public static function getInstance() : LayoutManager
{
if(!instance)
{
instance = new LayoutManager();
}
return instance;
}
public function set usePhasedInstantiation(param1:Boolean) : void
{
var _loc2_:Stage = null;
if(_usePhasedInstantiation != param1)
{
_usePhasedInstantiation = param1;
_loc2_ = SystemManagerGlobals.topLevelSystemManagers[0].stage;
if(param1)
{
originalFrameRate = _loc2_.frameRate;
_loc2_.frameRate = 1000;
}
else
{
_loc2_.frameRate = originalFrameRate;
}
}
}
private function waitAFrame() : void
{
callLaterObject.callLater(doPhasedInstantiation);
}
public function validateClient(param1:ILayoutManagerClient, param2:Boolean = false) : void
{
var _loc3_:ILayoutManagerClient = null;
var _loc4_:int = 0;
var _loc5_:Boolean = false;
var _loc6_:int = targetLevel;
if(targetLevel == int.MAX_VALUE)
{
targetLevel = param1.nestLevel;
}
while(!_loc5_)
{
_loc5_ = true;
_loc3_ = ILayoutManagerClient(invalidatePropertiesQueue.removeSmallestChild(param1));
while(_loc3_)
{
_loc3_.validateProperties();
if(!_loc3_.updateCompletePendingFlag)
{
updateCompleteQueue.addObject(_loc3_,_loc3_.nestLevel);
_loc3_.updateCompletePendingFlag = true;
}
_loc3_ = ILayoutManagerClient(invalidatePropertiesQueue.removeSmallestChild(param1));
}
if(invalidatePropertiesQueue.isEmpty())
{
invalidatePropertiesFlag = false;
invalidateClientPropertiesFlag = false;
}
_loc3_ = ILayoutManagerClient(invalidateSizeQueue.removeLargestChild(param1));
while(_loc3_)
{
_loc3_.validateSize();
if(!_loc3_.updateCompletePendingFlag)
{
updateCompleteQueue.addObject(_loc3_,_loc3_.nestLevel);
_loc3_.updateCompletePendingFlag = true;
}
if(invalidateClientPropertiesFlag)
{
_loc3_ = ILayoutManagerClient(invalidatePropertiesQueue.removeSmallestChild(param1));
if(_loc3_)
{
invalidatePropertiesQueue.addObject(_loc3_,_loc3_.nestLevel);
_loc5_ = false;
break;
}
}
_loc3_ = ILayoutManagerClient(invalidateSizeQueue.removeLargestChild(param1));
}
if(invalidateSizeQueue.isEmpty())
{
invalidateSizeFlag = false;
invalidateClientSizeFlag = false;
}
if(!param2)
{
_loc3_ = ILayoutManagerClient(invalidateDisplayListQueue.removeSmallestChild(param1));
while(_loc3_)
{
_loc3_.validateDisplayList();
if(!_loc3_.updateCompletePendingFlag)
{
updateCompleteQueue.addObject(_loc3_,_loc3_.nestLevel);
_loc3_.updateCompletePendingFlag = true;
}
if(invalidateClientPropertiesFlag)
{
_loc3_ = ILayoutManagerClient(invalidatePropertiesQueue.removeSmallestChild(param1));
if(_loc3_)
{
invalidatePropertiesQueue.addObject(_loc3_,_loc3_.nestLevel);
_loc5_ = false;
break;
}
}
if(invalidateClientSizeFlag)
{
_loc3_ = ILayoutManagerClient(invalidateSizeQueue.removeLargestChild(param1));
if(_loc3_)
{
invalidateSizeQueue.addObject(_loc3_,_loc3_.nestLevel);
_loc5_ = false;
break;
}
}
_loc3_ = ILayoutManagerClient(invalidateDisplayListQueue.removeSmallestChild(param1));
}
if(invalidateDisplayListQueue.isEmpty())
{
invalidateDisplayListFlag = false;
}
}
}
if(_loc6_ == int.MAX_VALUE)
{
targetLevel = int.MAX_VALUE;
if(!param2)
{
_loc3_ = ILayoutManagerClient(updateCompleteQueue.removeLargestChild(param1));
while(_loc3_)
{
if(!_loc3_.initialized)
{
_loc3_.initialized = true;
}
_loc3_.dispatchEvent(new FlexEvent(FlexEvent.UPDATE_COMPLETE));
_loc3_.updateCompletePendingFlag = false;
_loc3_ = ILayoutManagerClient(updateCompleteQueue.removeLargestChild(param1));
}
}
}
}
private function validateProperties() : void
{
var _loc1_:ILayoutManagerClient = ILayoutManagerClient(invalidatePropertiesQueue.removeSmallest());
while(_loc1_)
{
_loc1_.validateProperties();
if(!_loc1_.updateCompletePendingFlag)
{
updateCompleteQueue.addObject(_loc1_,_loc1_.nestLevel);
_loc1_.updateCompletePendingFlag = true;
}
_loc1_ = ILayoutManagerClient(invalidatePropertiesQueue.removeSmallest());
}
if(invalidatePropertiesQueue.isEmpty())
{
invalidatePropertiesFlag = false;
}
}
public function invalidateProperties(param1:ILayoutManagerClient) : void
{
if(!invalidatePropertiesFlag && ApplicationGlobals.application.systemManager)
{
invalidatePropertiesFlag = true;
if(!callLaterPending)
{
if(!callLaterObject)
{
callLaterObject = new UIComponent();
callLaterObject.systemManager = ApplicationGlobals.application.systemManager;
callLaterObject.callLater(waitAFrame);
}
else
{
callLaterObject.callLater(doPhasedInstantiation);
}
callLaterPending = true;
}
}
if(targetLevel <= param1.nestLevel)
{
invalidateClientPropertiesFlag = true;
}
invalidatePropertiesQueue.addObject(param1,param1.nestLevel);
}
public function invalidateDisplayList(param1:ILayoutManagerClient) : void
{
if(!invalidateDisplayListFlag && ApplicationGlobals.application.systemManager)
{
invalidateDisplayListFlag = true;
if(!callLaterPending)
{
if(!callLaterObject)
{
callLaterObject = new UIComponent();
callLaterObject.systemManager = ApplicationGlobals.application.systemManager;
callLaterObject.callLater(waitAFrame);
}
else
{
callLaterObject.callLater(doPhasedInstantiation);
}
callLaterPending = true;
}
}
invalidateDisplayListQueue.addObject(param1,param1.nestLevel);
}
private function validateDisplayList() : void
{
var _loc1_:ILayoutManagerClient = ILayoutManagerClient(invalidateDisplayListQueue.removeSmallest());
while(_loc1_)
{
_loc1_.validateDisplayList();
if(!_loc1_.updateCompletePendingFlag)
{
updateCompleteQueue.addObject(_loc1_,_loc1_.nestLevel);
_loc1_.updateCompletePendingFlag = true;
}
_loc1_ = ILayoutManagerClient(invalidateDisplayListQueue.removeSmallest());
}
if(invalidateDisplayListQueue.isEmpty())
{
invalidateDisplayListFlag = false;
}
}
public function validateNow() : void
{
var _loc1_:int = 0;
if(!usePhasedInstantiation)
{
_loc1_ = 0;
while(callLaterPending && _loc1_++ < 100)
{
doPhasedInstantiation();
}
}
}
private function validateSize() : void
{
var _loc1_:ILayoutManagerClient = ILayoutManagerClient(invalidateSizeQueue.removeLargest());
while(_loc1_)
{
_loc1_.validateSize();
if(!_loc1_.updateCompletePendingFlag)
{
updateCompleteQueue.addObject(_loc1_,_loc1_.nestLevel);
_loc1_.updateCompletePendingFlag = true;
}
_loc1_ = ILayoutManagerClient(invalidateSizeQueue.removeLargest());
}
if(invalidateSizeQueue.isEmpty())
{
invalidateSizeFlag = false;
}
}
private function doPhasedInstantiation() : void
{
var _loc1_:ILayoutManagerClient = null;
if(usePhasedInstantiation)
{
if(invalidatePropertiesFlag)
{
validateProperties();
ApplicationGlobals.application.dispatchEvent(new Event("validatePropertiesComplete"));
}
else if(invalidateSizeFlag)
{
validateSize();
ApplicationGlobals.application.dispatchEvent(new Event("validateSizeComplete"));
}
else if(invalidateDisplayListFlag)
{
validateDisplayList();
ApplicationGlobals.application.dispatchEvent(new Event("validateDisplayListComplete"));
}
}
else
{
if(invalidatePropertiesFlag)
{
validateProperties();
}
if(invalidateSizeFlag)
{
validateSize();
}
if(invalidateDisplayListFlag)
{
validateDisplayList();
}
}
if(invalidatePropertiesFlag || invalidateSizeFlag || invalidateDisplayListFlag)
{
callLaterObject.callLater(doPhasedInstantiation);
}
else
{
usePhasedInstantiation = false;
callLaterPending = false;
_loc1_ = ILayoutManagerClient(updateCompleteQueue.removeLargest());
while(_loc1_)
{
if(!_loc1_.initialized && _loc1_.processedDescriptors)
{
_loc1_.initialized = true;
}
_loc1_.dispatchEvent(new FlexEvent(FlexEvent.UPDATE_COMPLETE));
_loc1_.updateCompletePendingFlag = false;
_loc1_ = ILayoutManagerClient(updateCompleteQueue.removeLargest());
}
dispatchEvent(new FlexEvent(FlexEvent.UPDATE_COMPLETE));
}
}
public function isInvalid() : Boolean
{
return invalidatePropertiesFlag || invalidateSizeFlag || invalidateDisplayListFlag;
}
public function get usePhasedInstantiation() : Boolean
{
return _usePhasedInstantiation;
}
public function invalidateSize(param1:ILayoutManagerClient) : void
{
if(!invalidateSizeFlag && ApplicationGlobals.application.systemManager)
{
invalidateSizeFlag = true;
if(!callLaterPending)
{
if(!callLaterObject)
{
callLaterObject = new UIComponent();
callLaterObject.systemManager = ApplicationGlobals.application.systemManager;
callLaterObject.callLater(waitAFrame);
}
else
{
callLaterObject.callLater(doPhasedInstantiation);
}
callLaterPending = true;
}
}
if(targetLevel <= param1.nestLevel)
{
invalidateClientSizeFlag = true;
}
invalidateSizeQueue.addObject(param1,param1.nestLevel);
}
}
}