[mapguide-users] RE: parent.parent.parent.mapFrame - AJAX vsFUSION

Fri Sep 18 13:09:09 EDT 2009

That is strange...Delete Temp internet files?  Unless you have the wrong directory...

Brian

From: mapguide-users-bounces at lists.osgeo.org [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Fraser Burgess
Sent: Friday, September 18, 2009 1:02 PM
To: MapGuide Users Mail List
Subject: RE: [mapguide-users] RE: parent.parent.parent.mapFrame - AJAX vsFUSION

Again, many thanks for the continued help.

Interesting about Fusion not having a scriptFrame.. this may be possible - as you can tell I'm not an expert.  Unfortunately I've regressed over the last few days though and I'm not even in a position to solve that problem.   Here's where I stand now:

I had all my pages working that used the GetParent() function with the exception of gotopoint.aspx.  Somewhere in my playing I must have screwed something up as I noticed that all the other pages that called GetParent() function had started opening in new windows where they had at one time worked properly.  After a day of playing around without any success I figured that I must have really messed something up somewhere in one of the Fusion files.  So I backed up all my code and decided I was going to start from scratch ( I was already starting to forgot half the stuff I had done weeks before and figured it might be a good idea to re-learn again anyway).

I uninstalled mapguide entirely from my machine.  Deleted the existing directories that were left behind after the uninstall and started with a fresh install (restarted the machine and everything).  Strangest thing happens when I loaded the Fusion template right after the new install - it loads with all the googlestuff code and all my modifications to the template.  I check IIS the virtual directories for mapguide and they all point to the default install directory .  I check the default install directory and there is no sign of the addGoogle code or any of the other modifications to the template.  I didn't even back things up to this computer, the backup resides on an entirely different machine.  When I right click in IE and select view source, the addgoogle stuff code is being loaded into the browser from index.html

Can anyone explain this behavior?

Thanks
Fraser

From: mapguide-users-bounces at lists.osgeo.org [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Chris Claydon
Sent: Friday, September 18, 2009 11:37 AM
To: MapGuide Users Mail List
Subject: RE: [mapguide-users] RE: parent.parent.parent.mapFrame - AJAX vsFUSION

"The gotopoint.aspx is being held and fired from the hidden scriptFrame in MapGuide. "

Correct me if I'm wrong, but I don't think the Fusion viewer has a frame called 'scriptFrame'.

From: mapguide-users-bounces at lists.osgeo.org [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Kenneth Skovhede, GEOGRAF A/S
Sent: Friday, September 18, 2009 12:35 AM
To: MapGuide Users Mail List
Subject: Re: [mapguide-users] RE: parent.parent.parent.mapFrame - AJAX vsFUSION

Try to put a breakpoint at the line in question, then click "Start debugging".
Now once the page hits the line, the debugger will stop and show the line with a highlight.
Then, go to the 4th tab on the right ("Show"), and type in "GetParent" and press enter.
It will now show you what it thinks GetParent is (a function or null).
If it is a function, try to type "GetParent()", to see what GetParent() returns.
If it returns null, try to type "window", and expand the "[Methods]" item, to see what methods you have loaded/defined.

Regards, Kenneth Skovhede, GEOGRAF A/S

Fraser Burgess skrev:
Thanks, I've done some more reading and think I understand.  But that being said, I'm confused as to why this still isn't working.

In my navigatetask.aspx is where I grab the XY and scale parameters.

>From here I create a url pointing to gotopoint.aspx and pass in the XY and scale paremeters to the URL.

The gotopoint.aspx is being held and fired from the hidden scriptFrame in MapGuide.

Gotopoint.aspx contains the onPageLoad function which calls ZoomToView.

So since I want the script frame to interact with the mapFrame I should be able to start from the top frame and drill down like this:

function OnPageLoad()
{
    window.top.fusion.ZoomToView(<%= GetRequestParameters()["X"] %>, <%= GetRequestParameters()["Y"] %>, <%= GetRequestParameters()["Scale"] %>, true);
}

</script>

<body onLoad="OnPageLoad()">

Or I could also use the GetParent() function which should fire at the first if (parent.Fusion) section as the scriptFrame should be one level below the Fusion frame which is essentially defined as window.top.fusion to begin with.

Both these methods fire the script and open the URL passed in from Navigate.aspx in a new IE window. I can only assume this is because the reference to the mapFrame is invalid and somehow the URL defaults to opening in a new window?  Do I need to reference MapGuideViewerAPI.js in this script somewhere?? - I don't think this is the case as I didn't need to do it for the mapFrame references.

-----------

I tried the IE8 debugger and my code (see below) fails at GetParent().ZoomToView(605793.225947542, 5057603.85822154, 25000, true); with the error 'undefined' is null or not an object.  I assume this means it doesn't know what GetParent() is.

Any ideas?
F

<%@ Page language="c#"%>
<!-- #Include File="utilityfunctions.aspx" -->

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<html>
<head>
    <title>Viewer Sample Application - Goto Point</title>
    <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
    <meta http-equiv="content-script-type" content="text/javascript">
</head>

<script language="javascript">

function GetParent()
        {
            if (parent.Fusion) {
                return parent;
            } else if (parent.parent.Fusion) {
                return parent.parent;
            }
   }

function OnPageLoad()
{
    GetParent().ZoomToView(<%= GetRequestParameters()["X"] %>, <%= GetRequestParameters()["Y"] %>, <%= GetRequestParameters()["Scale"] %>, true);
}

</script>

<body onLoad="OnPageLoad()">

</body>

</html>

From: mapguide-users-bounces at lists.osgeo.org<mailto:mapguide-users-bounces at lists.osgeo.org> [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Chris Claydon
Sent: Wednesday, September 16, 2009 4:30 PM
To: MapGuide Users Mail List
Subject: RE: [mapguide-users] RE: parent.parent.parent.mapFrame - AJAX vsFUSION

'parent' takes you to the frame that is the parent of the one you're running the script in. The GetParent() method as defined below looks for 'Fusion' to be defined either in the direct parent or the parent of that frame. If you're launching in a new window, you'll never get to a parent that has Fusion defined. I think you need to use 'opener' instead...

From: mapguide-users-bounces at lists.osgeo.org<mailto:mapguide-users-bounces at lists.osgeo.org> [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Fraser Burgess
Sent: Wednesday, September 16, 2009 2:04 PM
To: MapGuide Users Mail List
Subject: RE: [mapguide-users] RE: parent.parent.parent.mapFrame - AJAX vs FUSION

So GetParent() worked when things were called with "parent.parent.parent.mapFrame"; however, what if I have something in AJAX like this:

function OnPageLoad()
{
    parent.ZoomToView(<%= GetRequestParameters()["X"] %>, <%= GetRequestParameters()["Y"] %>, <%= GetRequestParameters()["Scale"] %>, true);
}

I then modify by adding your code below and then try:

function GetParent()
        {
            if (parent.Fusion) {
                return parent;
            } else if (parent.parent.Fusion) {
                return parent.parent;
            }
   }

function OnPageLoad()
{
    GetParent().ZoomToView(<%= GetRequestParameters()["X"] %>, <%= GetRequestParameters()["Y"] %>, <%= GetRequestParameters()["Scale"] %>, true);
}

This code is using the sample gotopoint.aspx file.  When I select the link that activates this gotopoint, the URL contains the X Y and scale http://172.16.186.38/mapguide2010/UtilityMap/gotopoint.aspx?X=632593.974151717&Y=4989398.03115329&Scale=25000 which should be passed into this onPageLoad() function.  However it appears that nothing is firing for OnPageLoad - so when I click the link nothing happens, no error message or anything.

Can anyone help with this problem?  Also, can anyone point me to something that would help explain this parent.parent. syntax?  I'm not really certain why at one point we would use parent.function() vs parent.parent.parent.function() etc.

Thanks again
Fraser

From: mapguide-users-bounces at lists.osgeo.org<mailto:mapguide-users-bounces at lists.osgeo.org> [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Berdel, Brian
Sent: Wednesday, September 16, 2009 9:02 AM
To: MapGuide Users Mail List
Subject: [mapguide-users] RE: parent.parent.parent.mapFrame - AJAX vs FUSION

If you want to add the reference to your fusion index page, add the following to your aspx (task pane) page

function GetParent()
        {
            if (parent.Fusion) {
                return parent;
            } else if (parent.parent.Fusion) {
                return parent.parent;
            }
   }

Then you can call functions in the same way as before but substitute

GetParent().DigitizePoint(OnPointDigitized);

Brian Berdel
McMahon Associates, Inc.
p: 215.283.9444 x 260
www.mcmtrans.com<http://www.mcmtrans.com>

From: mapguide-users-bounces at lists.osgeo.org<mailto:mapguide-users-bounces at lists.osgeo.org> [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Chris Claydon
Sent: Tuesday, September 15, 2009 4:43 PM
To: MapGuide Users Mail List
Subject: [mapguide-users] RE: parent.parent.parent.mapFrame - AJAX vs FUSION

I think you should be able to reference the MapGuideViewerAPI.js script from your aspx page, and then just call DigitizePoint directly without any window.top or parent references.

It should also be possible to add a reference to MapGuideViewerAPI.js to the index.html file in the Fusion template you're using, and reference it using window.top...

It's been a while since I've played around with this stuff, so someone else may be able to provide specifics...

From: mapguide-users-bounces at lists.osgeo.org<mailto:mapguide-users-bounces at lists.osgeo.org> [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Fraser Burgess
Sent: Tuesday, September 15, 2009 1:40 PM
To: MapGuide Users Mail List
Subject: [mapguide-users] parent.parent.parent.mapFrame - AJAX vs FUSION

Hi List,

I'm making steady progress with my project and learning many things about MapGuide along the way thanks largely to the help from those on this list - many thanks to those who have helped so far

>From what I can tell parent.parent.parent.mapFrame is how the map frame is referenced from the task pane in the AJAX viewer.  I have been reading posts about how this is referenced in Fusion and it seems the MapGuideViewerAPI.js file has a bit of info.  Unfortunately I'm having a bit if trouble putting the pieces together and was hoping that someone here may steer me in the right direction.

In both AJAX and FUSION I'm working from the taskpane and using the markup scripts that are part of the AJAX demo's and tutorials.

I assume I need to substitute either 'Fusion' or 'window.top.Fusion' somehow for 'parent.parent.parent.mapFrame.DigitizePoint(OnPointDigitized);'. in my script however I have yet to do this in such a way that it works.  I keep getting 'Object doesn't support this property or method'.

So for example in my editmarkup.aspx code for example, I have the following function which should be activated when I click the digitize point button

            function AddPoint()
            {
                  SetDigitizeInfo(EDIT_POINT_HELP);
                  parent.parent.parent.mapFrame.DigitizePoint(OnPointDigitized);
            }

In Fusion this code gives an error 'parent.parent,parent.mapFrame' is null or not an object

I see that in MapGuideViewerAPI.js

function DigitizePoint(handler) {
    if (handler) {
      var Fusion = window.top.Fusion;
      var mapWidget = Fusion.getWidgetById(mapWidgetId);
      var digitizer = new Fusion.Tool.Canvas.Point(mapWidget);
      digitizer.mouseUp = PointHandlers.prototype.mouseUp;
      Object.inheritFrom(digitizer, Fusion.Tool.Canvas.prototype, []);
      digitizer.initializeCanvas();
      var activeWidget = mapWidget.buttonSet.activeButton;
      mapWidget.buttonSet.setActiveButton(null);
      digitizer.handler = function() {
          handler.apply(null, arguments);
          activeWidget.setActive(true);
      }
      digitizer.activateCanvas();

      //add a listener to update the position of the features
      var mapWidget = Fusion.getWidgetById(mapWidgetId);
      mapWidget.registerForEvent(Fusion.Event.MAP_EXTENTS_CHANGED,
        function(){
          digitizer.updatePx();
          digitizer.clearContext();
          digitizer.draw(digitizer.context);
        }
      );
    }
}

Thanks
Fraser

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________________________________
Important notice to recipients:
Copies of documents that may be relied upon by you are limited to the printed copies (also known as 'hard copies') that are signed and sealed by the Engineer and/or Land Surveyor. Files in electronic formats, or other types of information furnished by the Engineer and/or Land Surveyor to you such as text, data or graphics are for your convenience only. Any conclusions or information obtained or derived from such electronic files will be at the user's sole risk. When transferring documents in electronic formats, the Engineer and/or Land Surveyor makes no representation as to long-term compatibility, usability, or readability of the documents resulting from the use of software application packages, operating systems or computer hardware differing from those used by McMahon Associates, Inc. at the beginning of the project.
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