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Subject: Re: [cgmo-webcgm] Example use of DATA with no PARAM
Implementors (esp. Forrest, Ulrich, Benoit) -- Before the next teleconference, can you please address questions #1 and #2 below? It concerns Don's technique for successfully getting access to a picture before its initial display, by way of the onload event for the HTML code itself. This is not a solution for all problems, but is a piece of the puzzle and might be a solution for some specialized cases. -Lofton. At 05:07 PM 7/21/2010 -0600, Lofton Henderson wrote: >Don, > >Thanks for the results of your investigation. Per the discussion in this >morning's telecon, we want to verify: > >1.) Is the description and test case valid, in the sense that it conforms >to HTML (and WebCGM) rules? I.e., is this a standard-conforming >workaround for the <object> data/param bug of IE for cases where <param> >is not used/needed. (Apparently it would only work for a single metafile >per HTML document, since the onload handler invocation is on the HTML <body>.) > >2.) can other implementations successfully execute it, perhaps with a >little modification like Don did? > >Forrest, Ulrich, Benoit -- we are particularly interested in your take on >this approach to getting access to the metafile before it is first displayed. > >(All -- Does that accurately summarize what additional info we decided to >solicit from the implementors and TC members?) > >-Lofton. > >At 09:12 AM 7/21/2010 -0500, Don Larson wrote: >>All >> >>I have been able to construct and succesfully execute with our Viewer >>a HTML file that uses OBJECT DATA attribute to load a CGM without the >>use of PARAM. >> >>In my example, note that I used the HTML onLoad to specify an event >>handler wherein I set the visibility of a WebCGM APS prior to the CGM >>being displayed. I believe that this achieves what we had intended to >>achieve with a PARAM onload, i.e. allow users to modify WebCGM >>APS attributes before the CGM is actually displayed. >> >>I did however have to make some changes in our Viewer code to make >>this all work, e.g. ignore PARAMs in the DoPropExchange method. Just to >>make sure that my changes didn't introduce any new problems, I ran >>though the WebCGM 2.0 test files and they still work. >> >>My example HTML and CGM file are attached. >> >>Regards, >>Don Larson >>Larson Software Technology >>Tel: (713)977.4177 ext. 102 >>www.cgmlarson.com >> >>--------------------------------------------------------------------- >>To unsubscribe from this mail list, you must leave the OASIS TC that >>generates this mail. Follow this link to all your TCs in OASIS at: >>https://www.oasis-open.org/apps/org/workgroup/portal/my_workgroups.php > > >--------------------------------------------------------------------- >To unsubscribe from this mail list, you must leave the OASIS TC that >generates this mail. Follow this link to all your TCs in OASIS at: >https://www.oasis-open.org/apps/org/workgroup/portal/my_workgroups.php >
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