[mapguide-users] RE: parent.parent.parent.mapFrame - AJAX vsFUSION
Kenneth Skovhede, GEOGRAF A/S
ks at geograf.dk
Fri Sep 18 02:34:52 EDT 2009
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>
>
>
>
> <!-- Emit this function and assocate it with the onLoad event for the -->
>
> <!-- page so that it gets executed when this page loads in the -->
>
> <!-- browser. The function calls the ZoomToView method on the -->
>
> <!-- Viewer frame forcing the Viewer to navigate to the specified -->
>
> <!-- point and scale. -->
>
>
>
> <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
> <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
>
>
>
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>
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