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

Thu Sep 17 12:30:21 EDT 2009

Do you have the GetParent function in your gotopoint.aspx?

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] On Behalf Of Fraser Burgess
Sent: Thursday, September 17, 2009 11:35 AM
To: MapGuide Users Mail List
Subject: RE: [mapguide-users] RE: parent.parent.parent.mapFrame - AJAX vsFUSION

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] 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] 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] 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] 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] 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

________________________________
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.

________________________________
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.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/mapguide-users/attachments/20090917/e117fb46/attachment.html