[
https://issues.apache.org/jira/browse/FLEX-34934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15012201#comment-15012201
]
Harbs commented on FLEX-34934:
------------------------------
I'm not sure how you got this error, but here's a simple way of producing a
similar error:
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009";
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx" initialize="init(event)">
<fx:Script>
<![CDATA[
import mx.events.FlexEvent;
private var win:NativeWindow;
private var timer:Timer;
protected function init(event:FlexEvent):void
{
win = new NativeWindow(new
NativeWindowInitOptions());
win.close();
var pt:Point = win.minSize;
trace(pt.x);
timer = new Timer(1000);
timer.addEventListener(TimerEvent.TIMER,onTimer);
timer.start();
}
private function onTimer(ev:Event):void{
var pt:Point = win.minSize;
trace(pt.x);
win = new NativeWindow(new
NativeWindowInitOptions());
win.close();
}
]]>
</fx:Script>
<mx:Text text="hi ya'all!"/>
</s:WindowedApplication>
As you can see, the problem is simply accessing the minSize. To properly fix
this issue, there should be a check for win.closed.
I'm not sure how the point could be null.
> Spark Window - Closed Window
> ----------------------------
>
> Key: FLEX-34934
> URL: https://issues.apache.org/jira/browse/FLEX-34934
> Project: Apache Flex
> Issue Type: Bug
> Components: Spark: Window
> Affects Versions: Apache Flex 4.10.0, Apache Flex 4.11.0, Apache Flex
> 4.12.0, Apache Flex 4.13.0, Apache Flex 4.12.1, Apache Flex 4.14.0, Apache
> Flex 4.14.1
> Environment: Adobe AIR. Open Window and before creation complete move
> the window. Then crash.
> Reporter: Robbyn Gerhardt
> Labels: spark, window
> Fix For: Apache Flex 4.15.0
>
>
> Error: Error #3200: Cannot perform operation on closed window.
> at Error$/throwError()
> at flash.display::NativeWindow/get minSize()
> at spark.components::Window/get
> minWidth()[/Users/aharui/release4.13.0/frameworks/projects/airspark/src/spark/components/Window.as:903]
> at spark.components::Window/set
> width()[/Users/aharui/release4.13.0/frameworks/projects/airspark/src/spark/components/Window.as:1018]
> at
> mx.binding::Binding/defaultDestFunc()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/binding/Binding.as:305]
> at Function/http://adobe.com/AS3/2006/builtin::call()
> at
> mx.binding::Binding/innerExecute()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/binding/Binding.as:513]
> at Function/http://adobe.com/AS3/2006/builtin::apply()
> at
> mx.binding::Binding/wrapFunctionCall()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/binding/Binding.as:418]
> at
> mx.binding::Binding/execute()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/binding/Binding.as:356]
> at
> mx.binding::Binding/watcherFired()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/binding/Binding.as:541]
> at
> mx.binding::Watcher/notifyListeners()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/binding/Watcher.as:319]
> at
> mx.binding::PropertyWatcher/eventHandler()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/binding/PropertyWatcher.as:385]
> at flash.events::EventDispatcher/dispatchEventFunction()
> at flash.events::EventDispatcher/dispatchEvent()
> at
> mx.core::UIComponent/dispatchEvent()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/core/UIComponent.as:13682]
> at
> mx.core::UIComponent/setActualSize()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/core/UIComponent.as:10236]
> at
> spark.components::Application/updateBounds()[/Users/aharui/release4.13.0/frameworks/projects/spark/src/spark/components/Application.as:2167]
> at
> spark.components::Application/resizeHandler()[/Users/aharui/release4.13.0/frameworks/projects/spark/src/spark/components/Application.as:2070]
> at flash.events::EventDispatcher/dispatchEventFunction()
> at flash.events::EventDispatcher/dispatchEvent()
> at
> mx.managers::SystemManager/Stage_resizeHandler()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/managers/SystemManager.as:3235]
> at flash.display::Stage/set stageWidth()
> at
> spark.components::WindowedApplication/commitProperties()[/Users/aharui/release4.13.0/frameworks/projects/airspark/src/spark/components/WindowedApplication.as:1747]
> at
> mx.core::UIComponent/validateProperties()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/core/UIComponent.as:8751]
> at
> mx.managers::LayoutManager/validateProperties()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/managers/LayoutManager.as:605]
> at
> mx.managers::LayoutManager/doPhasedInstantiation()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/managers/LayoutManager.as:821]
> at
> mx.managers::LayoutManager/doPhasedInstantiationCallback()[/Users/aharui/release4.13.0/frameworks/projects/framework/src/mx/managers/LayoutManager.as:1188]
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