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+/*
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+Copyright � 2006 Adobe Systems Incorporated
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+
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+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"),
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+to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
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+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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+
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+ The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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+
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+
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+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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+OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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+
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+*/
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+
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+
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+/*
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+ * The Bridge class, responsible for navigating JS instances
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+ */
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+package bridge
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+{
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+
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+/*
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+ * imports
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+ */
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+import flash.external.ExternalInterface;
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+import flash.utils.Timer;
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+import flash.events.*;
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+import flash.display.DisplayObject;
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+import flash.system.ApplicationDomain;
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+import flash.utils.Dictionary;
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+import flash.utils.setTimeout;
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+
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+import mx.collections.errors.ItemPendingError;
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+import mx.core.IMXMLObject;
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+
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+import flash.utils.getQualifiedClassName;
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+import flash.utils.describeType;
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+import flash.events.TimerEvent;
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+
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+/**
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+ * The FABridge class, responsible for proxying AS objects into javascript
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+ */
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+public class FABridge extends EventDispatcher implements IMXMLObject
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+{
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+
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+ //holds a list of stuff to call later, to break the recurrence of the js <> as calls
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+ //you must use the full class name, as returned by the getQualifiedClassName() function
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+ public static const MethodsToCallLater:Object = new Object();
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+ MethodsToCallLater["mx.collections::ArrayCollection"]="refresh,removeItemAt";
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+
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+ public static const EventsToCallLater:Object = new Object();
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+ EventsToCallLater["mx.data.events::UnresolvedConflictsEvent"]="true";
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+ EventsToCallLater["mx.events::PropertyChangeEvent"]="true";
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+
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+ public static const INITIALIZED:String = "bridgeInitialized";
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+
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+ // constructor
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+ public function FABridge()
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+ {
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+ super();
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+ initializeCallbacks();
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+ }
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+
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+ // private vars
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+
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+ /**
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+ * stores a cache of descriptions of AS types suitable for sending to JS
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+ */
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+ private var localTypeMap:Dictionary = new Dictionary();
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+
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+ /**
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+ * stores an id-referenced dictionary of objects exported to JS
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+ */
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+ private var localInstanceMap:Dictionary = new Dictionary();
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+
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+ /**
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+ * stores an id-referenced dictionary of functions exported to JS
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+ */
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+ private var localFunctionMap:Dictionary = new Dictionary();
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+
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+ /**
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+ * stores an id-referenced dictionary of proxy functions imported from JS
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+ */
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+ private var remoteFunctionCache:Dictionary = new Dictionary();
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+
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+ /**
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+ * stores a list of custom serialization functions
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+ */
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+ private var customSerializersMap:Dictionary = new Dictionary();
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+
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+ /**
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+ * stores a map of object ID's and their reference count
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+ */
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+ private var refMap:Dictionary = new Dictionary();
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+ /**
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+ * a local counter for generating unique IDs
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+ */
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+ private var nextID:Number = 0;
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+
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+ private var lastRef:int;
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+
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+ /* values that can't be serialized natively across the bridge are packed and identified by type.
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+ These constants represent different serialization types */
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+ public static const TYPE_ASINSTANCE:uint = 1;
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+ public static const TYPE_ASFUNCTION:uint = 2;
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+ public static const TYPE_JSFUNCTION:uint = 3;
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+ public static const TYPE_ANONYMOUS:uint = 4;
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+
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+ private var _initChecked:Boolean = false;
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+
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+ // properties
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+
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+ //getters and setters for the main component in the swf - the root
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+ public function get rootObject():DisplayObject {return _rootObject;}
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+ public function set rootObject(value:DisplayObject):void
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+ {
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+ _rootObject = value;
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+ checkInitialized();
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+ }
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+
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+ /**
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+ * the bridge name
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+ */
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+ public var bridgeName:String;
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+ private var _registerComplete:Boolean = false;
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+
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+ /**
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+ * increment the reference count for an object being passed over the bridge
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+ */
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+ public function incRef(objId:int):void
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+ {
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+ if(refMap[objId] == null) {
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+ //the object is being created; we now add it to the map and set its refCount = 1
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+ refMap[objId] = 1;
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+ } else {
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+ refMap[objId] = refMap[objId] +1;
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+ }
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+ }
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+
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+ /**
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+ * when an object has been completely passed to JS its reference count is decreased with 1
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+ */
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+ public function releaseRef(objId:int):void
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+ {
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+ if(refMap[objId] != null)
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+ {
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+ var newRefVal:int = refMap[objId] - 1;
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+ // if the object exists in the referenceMap and its count equals or has dropped under 0 we clean it up
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+ if(refMap[objId] != null && newRefVal <= 0)
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+ {
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+ delete refMap[objId];
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+ delete localInstanceMap[objId];
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+ }
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+ else
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+ {
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+ refMap[objId] = newRefVal;
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+ }
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+ }
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+ }
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+
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+ /**
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+ * attaches the callbacks to external interface
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+ */
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+ public function initializeCallbacks():void
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+ {
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+ if (ExternalInterface.available == false)
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+ {
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+ return;
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+ }
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+
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+ ExternalInterface.addCallback("getRoot", js_getRoot);
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+ ExternalInterface.addCallback("getPropFromAS", js_getPropFromAS);
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+ ExternalInterface.addCallback("setPropInAS", js_setPropertyInAS);
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+ ExternalInterface.addCallback("invokeASMethod", js_invokeMethod);
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+ ExternalInterface.addCallback("invokeASFunction", js_invokeFunction);
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+ ExternalInterface.addCallback("releaseASObjects", js_releaseASObjects);
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+ ExternalInterface.addCallback("create", js_create);
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+ ExternalInterface.addCallback("releaseNamedASObject",js_releaseNamedASObject);
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+ ExternalInterface.addCallback("incRef", incRef);
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+ ExternalInterface.addCallback("releaseRef", releaseRef);
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+ }
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+
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+ private var _rootObject:DisplayObject;
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+
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+ private var _document:DisplayObject;
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+
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+ /**
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+ * called to check whether the bridge has been initialized for the specified document/id pairs
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+ */
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+ public function initialized(document:Object, id:String):void
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+ {
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+ _document = (document as DisplayObject);
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+
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+ if (_document != null)
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+ {
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+ checkInitialized();
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+ }
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+ }
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+
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+ private function get baseObject():DisplayObject
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+ {
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+ return (rootObject == null)? _document:rootObject;
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+ }
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+
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+
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+ private function checkInitialized():void
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+ {
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+ if(_initChecked== true)
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+ {
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+ return;
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+ }
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+ _initChecked = true;
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+
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+ // oops! timing error. Player team is working on it.
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+ var t:Timer = new Timer(200,1);
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+ t.addEventListener(TimerEvent.TIMER,auxCheckInitialized);
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+ t.start();
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+ }
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+
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+ /**
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+ * auxiliary initialization check that is called after the timing has occurred
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+ */
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+ private function auxCheckInitialized(e:Event):void
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+ {
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+
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+ var bCanGetParams:Boolean = true;
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+
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+ try
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+ {
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+ var params:Object = baseObject.root.loaderInfo.parameters;
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+ }
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+ catch (e:Error)
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+ {
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+ bCanGetParams = false;
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+ }
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+
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+ if (bCanGetParams == false)
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+ {
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+ var t:Timer = new Timer(100);
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+ var timerFunc:Function = function(e:TimerEvent):void
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+ {
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+ if(baseObject.root != null)
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+ {
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+ try
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+ {
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+ bCanGetParams = true;
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+ var params:Object = baseObject.root.loaderInfo.parameters;
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+ }
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+ catch (err:Error)
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+ {
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+ bCanGetParams = false;
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+ }
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+ if (bCanGetParams)
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+ {
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+ t.removeEventListener(TimerEvent.TIMER, timerFunc);
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+ t.stop();
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+ dispatchInit();
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+ }
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+ }
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+ }
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+ t.addEventListener(TimerEvent.TIMER, timerFunc);
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+ t.start();
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+ }
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+ else
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+ {
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+ dispatchInit();
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+ }
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+ }
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+
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+ /**
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+ * call into JS to annunce that the bridge is ready to be used
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+ */
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+ private function dispatchInit(e:Event = null):void
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+ {
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+ if(_registerComplete == true)
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+ {
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+ return;
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+ }
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+
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+ if (ExternalInterface.available == false)
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+ {
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+ return;
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+ }
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+
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+ if (bridgeName == null)
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+ {
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+ bridgeName = baseObject.root.loaderInfo.parameters["bridgeName"];
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+
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+ if(bridgeName == null)
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+ {
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+ bridgeName = "flash";
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+ }
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+ }
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+
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+ _registerComplete = ExternalInterface.call("FABridge__bridgeInitialized", [bridgeName]);
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+ dispatchEvent(new Event(FABridge.INITIALIZED));
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+ }
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+
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+ // serialization/deserialization
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+
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+ /** serializes a value for transfer across the bridge. primitive types are left as is. Arrays are left as arrays, but individual
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+ * values in the array are serialized according to their type. Functions and class instances are inserted into a hash table and sent
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+ * across as keys into the table.
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+ *
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+ * For class instances, if the instance has been sent before, only its id is passed. If This is the first time the instance has been sent,
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+ * a ref descriptor is sent associating the id with a type string. If this is the first time any instance of that type has been sent
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+ * across, a descriptor indicating methods, properties, and variables of the type is also sent across
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+ */
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+ public function serialize(value:*, keep_refs:Boolean=false):*
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+ {
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+ var result:* = {};
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+ result.newTypes = [];
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+ result.newRefs = {};
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+
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+ if (value is Number || value is Boolean || value is String || value == null || value == undefined || value is int || value is uint)
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+ {
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+ result = value;
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+ }
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+ else if (value is Array)
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+ {
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+ result = [];
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+ for(var i:int = 0; i < value.length; i++)
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+ {
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+ result[i] = serialize(value[i], keep_refs);
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+ }
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+ }
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+ else if (value is Function)
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+ {
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+ // serialize a class
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+ result.type = TYPE_ASFUNCTION;
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+ result.value = getFunctionID(value, true);
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+ }
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+ else if (getQualifiedClassName(value) == "Object")
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+ {
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+ result.type = TYPE_ANONYMOUS;
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+ result.value = value;
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+ }
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+ else
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+ {
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+ // serialize a class
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+ result.type = TYPE_ASINSTANCE;
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+ // make sure the type info is available
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+ var className:String = getQualifiedClassName(value);
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+
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+ var serializer:Function = customSerializersMap[className];
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+
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+ // try looking up the serializer under an alternate name
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+ if (serializer == null)
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+ {
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+ if (className.indexOf('$') > 0)
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+ {
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+ var split:int = className.lastIndexOf(':');
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+ if (split > 0)
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+ {
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+ var alternate:String = className.substring(split+1);
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+ serializer = customSerializersMap[alternate];
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+ }
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+ }
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+ }
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+
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+ if (serializer != null)
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+ {
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+ return serializer.apply(null, [value, keep_refs]);
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+ }
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+ else
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+ {
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+ if (retrieveCachedTypeDescription(className, false) == null)
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+ {
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+ try
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+ {
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+ result.newTypes.push(retrieveCachedTypeDescription(className, true));
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+ }
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+ catch(err:Error)
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+ {
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+ var interfaceInfo:XMLList = describeType(value).implementsInterface;
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+ for each (var interf:XML in interfaceInfo)
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+ {
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+ className = interf.@type.toString();
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+ if (retrieveCachedTypeDescription(className, false) == null){
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+ result.newTypes.push(retrieveCachedTypeDescription(className, true));
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+ } //end if push new data type
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+
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+ } //end for going through interfaces
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+ var baseClass:String = describeType(value).@base.toString();
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+ if (retrieveCachedTypeDescription(baseClass, false) == null){
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+ result.newTypes.push(retrieveCachedTypeDescription(baseClass, true));
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+ } //end if push new data type
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+ }
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+ }
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+
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+ // make sure the reference is known
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+ var objRef:Number = getRef(value, false);
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+ var should_keep_ref:Boolean = false;
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+ if (isNaN(objRef))
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+ {
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+ //create the reference if necessary
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+ objRef = getRef(value, true);
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+ should_keep_ref = true;
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+ }
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+
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+ result.newRefs[objRef] = className;
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+ //trace("serializing new reference: " + className + " with value" + value);
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+
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+ //the result is a getProperty / invokeMethod call. How can we know how much you will need the object ?
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+ if (keep_refs && should_keep_ref) {
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+ incRef(objRef);
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+ }
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+ result.value = objRef;
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+ }
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+ }
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+ return result;
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+ }
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+
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+ /**
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+ * deserializes a value passed in from javascript. See serialize for details on how values are packed and
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+ * unpacked for transfer across the bridge.
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+ */
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+ public function deserialize(valuePackage:*):*
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+ {
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+ var result:*;
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+ if (valuePackage is Number || valuePackage is Boolean || valuePackage is String || valuePackage === null || valuePackage === undefined || valuePackage is int || valuePackage is uint)
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+ {
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+ result = valuePackage;
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+ }
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+ else if(valuePackage is Array)
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+ {
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+ result = [];
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+ for (var i:int = 0; i < valuePackage.length; i++)
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+ {
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+ result[i] = deserialize(valuePackage[i]);
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+ }
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+ }
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+ else if (valuePackage.type == FABridge.TYPE_JSFUNCTION)
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+ {
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+ result = getRemoteFunctionProxy(valuePackage.value, true);
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+ }
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+ else if (valuePackage.type == FABridge.TYPE_ASFUNCTION)
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+ {
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+ throw new Error("as functions can't be passed back to as yet");
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+ }
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|
+ else if (valuePackage.type == FABridge.TYPE_ASINSTANCE)
|
|
|
+ {
|
|
|
+ result = resolveRef(valuePackage.value);
|
|
|
+ }
|
|
|
+ else if (valuePackage.type == FABridge.TYPE_ANONYMOUS)
|
|
|
+ {
|
|
|
+ result = valuePackage.value;
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+ }
|
|
|
+
|
|
|
+ public function addCustomSerialization(className:String, serializationFunction:Function):void
|
|
|
+ {
|
|
|
+ customSerializersMap[className] = serializationFunction;
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ // type management
|
|
|
+
|
|
|
+ /**
|
|
|
+ * retrieves a type description for the type indicated by className, building one and caching it if necessary
|
|
|
+ */
|
|
|
+ public function retrieveCachedTypeDescription(className:String, createifNecessary:Boolean):Object
|
|
|
+ {
|
|
|
+ if(localTypeMap[className] == null && createifNecessary == true)
|
|
|
+ {
|
|
|
+ localTypeMap[className] = buildTypeDescription(className);
|
|
|
+ }
|
|
|
+ return localTypeMap[className];
|
|
|
+ }
|
|
|
+
|
|
|
+ public function addCachedTypeDescription(className:String, desc:Object):Object
|
|
|
+ {
|
|
|
+ if (localTypeMap[className] == null)
|
|
|
+ {
|
|
|
+ localTypeMap[className] = desc;
|
|
|
+ }
|
|
|
+ return localTypeMap[className];
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * builds a type description for the type indiciated by className
|
|
|
+ */
|
|
|
+ public function buildTypeDescription(className:String):Object
|
|
|
+ {
|
|
|
+ var desc:Object = {};
|
|
|
+
|
|
|
+ className = className.replace(/::/,".");
|
|
|
+
|
|
|
+ var objClass:Class = Class(ApplicationDomain.currentDomain.getDefinition(className));
|
|
|
+
|
|
|
+ var xData:XML = describeType(objClass);
|
|
|
+
|
|
|
+ desc.name = xData.@name.toString();
|
|
|
+
|
|
|
+ var methods:Array = [];
|
|
|
+ var xMethods:XMLList = xData.factory.method;
|
|
|
+ for (var i:int = 0; i < xMethods.length(); i++)
|
|
|
+ {
|
|
|
+ methods.push(xMethods[i].@name.toString());
|
|
|
+ }
|
|
|
+ desc.methods = methods;
|
|
|
+
|
|
|
+ var accessors:Array = [];
|
|
|
+ var xAcc:XMLList = xData.factory.accessor;
|
|
|
+ for (i = 0; i < xAcc.length(); i++)
|
|
|
+ {
|
|
|
+ accessors.push(xAcc[i].@name.toString());
|
|
|
+ }
|
|
|
+ xAcc = xData.factory.variable;
|
|
|
+ for (i = 0; i < xAcc.length(); i++)
|
|
|
+ {
|
|
|
+ accessors.push(xAcc[i].@name.toString());
|
|
|
+ }
|
|
|
+ desc.accessors = accessors;
|
|
|
+
|
|
|
+ return desc;
|
|
|
+ }
|
|
|
+
|
|
|
+// instance mgmt
|
|
|
+
|
|
|
+ /**
|
|
|
+ * resolves an instance id passed from JS to an instance previously cached for representing in JS
|
|
|
+ */
|
|
|
+ private function resolveRef(objRef:Number):Object
|
|
|
+ {
|
|
|
+ try
|
|
|
+ {
|
|
|
+ return (objRef == -1)? baseObject : localInstanceMap[objRef];
|
|
|
+ }
|
|
|
+ catch(e:Error)
|
|
|
+ {
|
|
|
+ return serialize("__FLASHERROR__"+"||"+e.message);
|
|
|
+ }
|
|
|
+
|
|
|
+ return (objRef == -1)? baseObject : localInstanceMap[objRef];
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * returns an id associated with the object provided for passing across the bridge to JS
|
|
|
+ */
|
|
|
+ public function getRef(obj:Object, createIfNecessary:Boolean):Number
|
|
|
+ {
|
|
|
+ try
|
|
|
+ {
|
|
|
+ var ref:Number;
|
|
|
+
|
|
|
+ if (createIfNecessary)
|
|
|
+ {
|
|
|
+ var newRef:Number = nextID++;
|
|
|
+ localInstanceMap[newRef] = obj;
|
|
|
+ ref = newRef;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ for (var key:* in localInstanceMap)
|
|
|
+ {
|
|
|
+ if (localInstanceMap[key] === obj)
|
|
|
+ {
|
|
|
+ ref = key;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ catch(e:Error)
|
|
|
+ {
|
|
|
+ return serialize("__FLASHERROR__"+"||"+e.message)
|
|
|
+ }
|
|
|
+
|
|
|
+ return ref;
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ // function management
|
|
|
+
|
|
|
+ /**
|
|
|
+ * resolves a function ID passed from JS to a local function previously cached for representation in JS
|
|
|
+ */
|
|
|
+ private function resolveFunctionID(funcID:Number):Function
|
|
|
+ {
|
|
|
+ return localFunctionMap[funcID];
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * associates a unique ID with a local function suitable for passing across the bridge to proxy in Javascript
|
|
|
+ */
|
|
|
+ public function getFunctionID(f:Function, createIfNecessary:Boolean):Number
|
|
|
+ {
|
|
|
+ var ref:Number;
|
|
|
+
|
|
|
+ if (createIfNecessary)
|
|
|
+ {
|
|
|
+ var newID:Number = nextID++;
|
|
|
+ localFunctionMap[newID] = f;
|
|
|
+ ref = newID;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ for (var key:* in localFunctionMap)
|
|
|
+ {
|
|
|
+ if (localFunctionMap[key] === f) {
|
|
|
+ ref = key;
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return ref;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * returns a proxy function that represents a function defined in javascript. This function can be called syncrhonously, and will
|
|
|
+ * return any values returned by the JS function
|
|
|
+ */
|
|
|
+ public function getRemoteFunctionProxy(functionID:Number, createIfNecessary:Boolean):Function
|
|
|
+ {
|
|
|
+ try
|
|
|
+ {
|
|
|
+ if (remoteFunctionCache[functionID] == null)
|
|
|
+ {
|
|
|
+ remoteFunctionCache[functionID] = function(...args):*
|
|
|
+ {
|
|
|
+ var externalArgs:Array = args.concat();
|
|
|
+ externalArgs.unshift(functionID);
|
|
|
+ var serializedArgs:* = serialize(externalArgs, true);
|
|
|
+
|
|
|
+ if(checkToThrowLater(serializedArgs[1]))
|
|
|
+ {
|
|
|
+ setTimeout(function a():* {
|
|
|
+ try {
|
|
|
+ var retVal:* = ExternalInterface.call("FABridge__invokeJSFunction", serializedArgs);
|
|
|
+ for(var i:int = 0; i<serializedArgs.length; i++)
|
|
|
+ {
|
|
|
+ if(typeof(serializedArgs[i]) == "object" && serializedArgs[i]!=null)
|
|
|
+ {
|
|
|
+ releaseRef(serializedArgs[i].value);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return retVal;
|
|
|
+ }
|
|
|
+ catch(e:Error)
|
|
|
+ {
|
|
|
+ return serialize("__FLASHERROR__"+"||"+e.message);
|
|
|
+ }
|
|
|
+ },1);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ var retVal:* = ExternalInterface.call("FABridge__invokeJSFunction", serializedArgs);
|
|
|
+ for(var i:int = 0; i<serializedArgs.length; i++)
|
|
|
+ {
|
|
|
+ if(typeof(serializedArgs[i]) == "object" && serializedArgs[i]!=null)
|
|
|
+ {
|
|
|
+ releaseRef(serializedArgs[i].value);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return retVal;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ catch(e:Error)
|
|
|
+ {
|
|
|
+ return serialize("__FLASHERROR__"+"||"+e.message);
|
|
|
+ }
|
|
|
+
|
|
|
+ return remoteFunctionCache[functionID];
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * function that checks if the object on which we are working demands that it should be called at a later time, breaking the call chain
|
|
|
+ * we check the actual object, as well as the bsae class and interfaces
|
|
|
+ */
|
|
|
+ private function checkToThrowLater(obj:Object):Boolean
|
|
|
+ {
|
|
|
+ obj = resolveRef(obj.value);
|
|
|
+ var className:String = getQualifiedClassName(obj);
|
|
|
+ var classInfo:XML = describeType(obj);
|
|
|
+
|
|
|
+ if (FABridge.EventsToCallLater[className] != null) {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+
|
|
|
+ //check if this class doesn't inherit from one of the entries in the table
|
|
|
+ var inheritanceInfo:XMLList = describeType(obj).extendsClass;
|
|
|
+ for each (var inherit:XML in inheritanceInfo)
|
|
|
+ {
|
|
|
+ className = inherit.@type.toString();
|
|
|
+ if (FABridge.EventsToCallLater[className] != null) {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ } //end for going through inheritance tree
|
|
|
+
|
|
|
+ //if we're still here, check the interfaces as well
|
|
|
+
|
|
|
+ var interfaceInfo:XMLList = describeType(obj).implementsInterface;
|
|
|
+ for each (var interf:XML in interfaceInfo)
|
|
|
+ {
|
|
|
+ className = interf.@type.toString();
|
|
|
+ if (FABridge.EventsToCallLater[className] != null) {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ } //end for going through inheritance tree
|
|
|
+
|
|
|
+ //if nothing was found, return false, so the function gets executed
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ // callbacks exposed to JS
|
|
|
+
|
|
|
+ /**
|
|
|
+ * called to fetch a named property off the instanced associated with objID
|
|
|
+ */
|
|
|
+ public function js_getPropFromAS(objID:Number, propName:String):*
|
|
|
+ {
|
|
|
+ incRef(objID);
|
|
|
+ try
|
|
|
+ {
|
|
|
+ var obj:Object = resolveRef(objID);
|
|
|
+ var ret:* = serialize(obj[propName], true);
|
|
|
+ releaseRef(objID);
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ catch (e:ItemPendingError)
|
|
|
+ {
|
|
|
+ releaseRef(objID);
|
|
|
+ //ItemPendingError
|
|
|
+ //return serialize("an error occcured with" + obj[propName]);
|
|
|
+ }
|
|
|
+ catch(e:Error)
|
|
|
+ {
|
|
|
+ releaseRef(objID);
|
|
|
+ return serialize("__FLASHERROR__" + "||" + e.message);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * called to set a named property on the instance associated with objID
|
|
|
+ */
|
|
|
+ private function js_setPropertyInAS(objID:Number, propRef:String, value:*):*
|
|
|
+ {
|
|
|
+ incRef(objID);
|
|
|
+ try {
|
|
|
+ var obj:Object = resolveRef(objID);
|
|
|
+ obj[propRef] = deserialize(value);
|
|
|
+ releaseRef(objID);
|
|
|
+ }
|
|
|
+ catch(e:Error)
|
|
|
+ {
|
|
|
+ releaseRef(objID);
|
|
|
+ return serialize("__FLASHERROR__" + "||" + e.message);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * accessor for retrieveing a proxy to the root object from JS
|
|
|
+ */
|
|
|
+ private function js_getRoot():*
|
|
|
+ {
|
|
|
+ try
|
|
|
+ {
|
|
|
+ //always get the root; this is the same as the get property, only it is the root object
|
|
|
+ var objRef:Number = getRef(baseObject, false);
|
|
|
+ if (isNaN(objRef))
|
|
|
+ {
|
|
|
+ //create the reference if necessary
|
|
|
+ objRef = getRef(baseObject, true);
|
|
|
+ incRef(objRef);
|
|
|
+ }
|
|
|
+ return serialize(baseObject);
|
|
|
+ }
|
|
|
+ catch(e:Error)
|
|
|
+ {
|
|
|
+ return serialize("__FLASHERROR__"+"||"+e.message);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * called to invoke a function or closure associated with funcID
|
|
|
+ */
|
|
|
+ private function js_invokeFunction(funcID:Number, args:Object):*
|
|
|
+ {
|
|
|
+ var result:*;
|
|
|
+ try
|
|
|
+ {
|
|
|
+ var func:Function = resolveFunctionID(funcID);
|
|
|
+ if(func != null)
|
|
|
+ result = func.apply(null, deserialize(args));
|
|
|
+
|
|
|
+ return serialize(result, true);
|
|
|
+ }
|
|
|
+ catch(e:Error)
|
|
|
+ {
|
|
|
+ return serialize("__FLASHERROR__"+"||"+e.message);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * called to invoke a named method on the object associated with objID
|
|
|
+ */
|
|
|
+ private function js_invokeMethod(objID:Number, methodName:String, args:Object):*
|
|
|
+ {
|
|
|
+ incRef(objID);
|
|
|
+ try
|
|
|
+ {
|
|
|
+ var obj:Object = resolveRef(objID);
|
|
|
+ var result:*;
|
|
|
+
|
|
|
+ //check if the method is callable right now, or later
|
|
|
+ var callLater:Boolean = checkToExecuteLater(obj, methodName);
|
|
|
+
|
|
|
+ if (callLater) {
|
|
|
+ var t:Timer = new Timer(200, 1);
|
|
|
+ t.addEventListener(TimerEvent.TIMER, function():void {
|
|
|
+ var ret_inner:* = serialize(obj[methodName].apply(null, deserialize(args)), true);
|
|
|
+ releaseRef(objID);
|
|
|
+ });
|
|
|
+ t.start();
|
|
|
+ } else {
|
|
|
+ var ret:* = serialize(obj[methodName].apply(null, deserialize(args)), true);
|
|
|
+ releaseRef(objID);
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ catch (e:ItemPendingError)
|
|
|
+ {
|
|
|
+ releaseRef(objID);
|
|
|
+ // ignore ItemPendingError
|
|
|
+ }
|
|
|
+ catch(e:Error)
|
|
|
+ {
|
|
|
+ releaseRef(objID);
|
|
|
+ return serialize("__FLASHERROR__" + "||" + e.message);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * method that performs a check on the specified object and method to see if their execution should be delayed or not
|
|
|
+ * it checks the object, its base class and implemented interfaces
|
|
|
+ */
|
|
|
+ private function checkToExecuteLater(obj:Object, methodName:String):Boolean
|
|
|
+ {
|
|
|
+ var methods:String;
|
|
|
+ var className:String = getQualifiedClassName(obj);
|
|
|
+ var classInfo:XML = describeType(obj);
|
|
|
+
|
|
|
+ if (FABridge.MethodsToCallLater[className] != null) {
|
|
|
+ methods = FABridge.MethodsToCallLater[className];
|
|
|
+ //must call later
|
|
|
+ if(methods.match(methodName))
|
|
|
+ {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ //check if this class doesn't inherit from one of the entries in the table
|
|
|
+ var inheritanceInfo:XMLList = describeType(obj).extendsClass;
|
|
|
+ for each (var inherit:XML in inheritanceInfo)
|
|
|
+ {
|
|
|
+ className = inherit.@type.toString();
|
|
|
+ if (FABridge.MethodsToCallLater[className] != null) {
|
|
|
+ methods = FABridge.MethodsToCallLater[className];
|
|
|
+ //must call later
|
|
|
+ if(methods.match(methodName))
|
|
|
+ {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ } //end for going through inheritance tree
|
|
|
+
|
|
|
+ //if we're still here, check the interfaces as well
|
|
|
+
|
|
|
+ var interfaceInfo:XMLList = describeType(obj).implementsInterface;
|
|
|
+ for each (var interf:XML in interfaceInfo)
|
|
|
+ {
|
|
|
+ className = interf.@type.toString();
|
|
|
+ if (FABridge.MethodsToCallLater[className] != null) {
|
|
|
+ methods = FABridge.MethodsToCallLater[className];
|
|
|
+ //must call later
|
|
|
+ if(methods.match(methodName))
|
|
|
+ {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ } //end for going through inheritance tree
|
|
|
+
|
|
|
+ //if nothing was found, return false, so the function gets executed
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * callback from JS to release all AS Objects from the local cache maps
|
|
|
+ */
|
|
|
+ private function js_releaseASObjects():void
|
|
|
+ {
|
|
|
+ localTypeMap = new Dictionary();
|
|
|
+ localInstanceMap = new Dictionary();
|
|
|
+ localFunctionMap = new Dictionary();
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * callback from JS to release a specific object, identified by its ID
|
|
|
+ */
|
|
|
+ private function js_releaseNamedASObject(objId:int):Boolean
|
|
|
+ {
|
|
|
+ var retVal:Boolean = false;
|
|
|
+ if (localInstanceMap[objId] != null)
|
|
|
+ {
|
|
|
+ delete refMap[objId];
|
|
|
+ delete localInstanceMap[objId];
|
|
|
+ retVal = true;
|
|
|
+ }
|
|
|
+ return retVal;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * callback for js to create a new class instance.
|
|
|
+ */
|
|
|
+
|
|
|
+ private function js_create(className:String):*
|
|
|
+ {
|
|
|
+ try
|
|
|
+ {
|
|
|
+ var c:Class = Class(ApplicationDomain.currentDomain.getDefinition(className));
|
|
|
+ var instance:Object = new c();
|
|
|
+ }
|
|
|
+ catch(e:Error)
|
|
|
+ {
|
|
|
+ return serialize("__FLASHERROR__" + "||" + e.message);
|
|
|
+ }
|
|
|
+
|
|
|
+ // make sure the reference is known
|
|
|
+ var objRef:Number = getRef(instance, true);
|
|
|
+ incRef(objRef);
|
|
|
+ return serialize(instance);
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+}
|