Mailing-List: contact dev-help@flex.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@flex.apache.org
MIME-Version: 1.0
Sender: carlos.rovira@gmail.com
From: Carlos Rovira <carlosrovira@apache.org>
Date: Thu, 19 Jan 2017 02:27:02 +0100
Message-ID: <CAMFKFRga58KZ0hkZpuDpApMe80H39J=4jzf1gtAeFRRs+_X94Q@mail.gmail.com>
Subject: [FlexJS] Singletons are working ok?
To: "dev@flex.apache.org" <dev@flex.apache.org>
Content-Type: multipart/alternative; boundary=f403045f91085d7c380546686ffb
archived-at: Thu, 19 Jan 2017 01:27:32 -0000

--f403045f91085d7c380546686ffb
Content-Type: text/plain; charset=UTF-8

Hi,

I found a problem with my Dialog implementation. It's creating a dialog
each time I show it, so I try to make it a Singleton, but I can't get it
working as expected:

The singleton is (remove comments and not related methods to remove
verbosity):

*public class Dialog extends ContainerBase implements IPopUp*
* {*
* public function Dialog()*
* {*
* if(_instance)*
* {*
* throw new Error("Dialog should not be instantiated.");*
* }*

* _instance = this;*
* }*

* static private var _instance:Dialog;*

* COMPILE::JS*
* static private var dialog:HTMLDialogElement;*

* static public function addDialog():Dialog*
* {*
* if(!_instance)*
* {*
* _instance = new Dialog();*

* if(Application.topLevelApplication != null)*
* {*
* Application.topLevelApplication.addElement(_instance);*
* }*
* }*

* return _instance;*
* }*

* static public function showModal():Dialog { *
*                        if(!_instance) { *
*                              addDialog();*
*                       }*

*                      COMPILE::JS *
*                      {*
*                             dialog.showModal();*
*                       }*

*                       return _instance;*
*                }*
*       }*
*}*


Then I have a MXML file called TestDialog.mxml that has some custom content.

I call with a button click like this:

*var t:TestDialog = TestDialog.showModal();*

This reports and error when compile MDLExample:

*Error: Call to a possibly undefined method showModal through a reference
with static type TestDialog.*
*                var t:TestDialog = TestDialog.showModal();*
                                              ^

But as I said TestDialog is an mxml declared as:

*<mdl:Dialog xmlns:fx="http://ns.adobe.com/mxml/2009
<http://ns.adobe.com/mxml/2009>"*
*            xmlns:js="library://ns.apache.org/flexjs/basic
<http://ns.apache.org/flexjs/basic>"*
*            xmlns:mdl="library://ns.apache.org/flexjs/mdl
<http://ns.apache.org/flexjs/mdl>"*
*            xmlns="http://www.w3.org/1999/xhtml
<http://www.w3.org/1999/xhtml>">*

*....*

So should has showModal static method

So this seems to me a bug in FlexJS

Thanks


-- 
Carlos Rovira
http://about.me/carlosrovira

--f403045f91085d7c380546686ffb--