Subject: asynchronous loading of linked content? From: "Mark D. Anderson" <mda@xxxxxxxxxxxxxx> Date: Tue, 29 Dec 1998 09:13:24 -0800 |
I didn't get any takers when I asked this to xml-dev, so I'm trying again on the xsl list. -mda -----Original Message----- From: Mark D. Anderson <mda@xxxxxxxxxxxxxx> To: xml-dev@xxxxxxxx <xml-dev@xxxxxxxx> Date: Sunday, December 20, 1998 4:38 PM Subject: parallelism in presentation? >Suppose I want a web page showing weather in several >parts of the world, aggregating content from a variety of servers. >I naturally want the loading of that constituent content to >be driven by the browser from those servers, in parallel. > >Today, that can be done easily with the IMG tag. >If I want html loaded from different places, I either >have to use frames (gag), or some javascript hacks (gag again), >or something unportable such as activex or java (coughing up blood). > >How would this work in the xml/xsl/xlp future? > >Presumably I would start with a smallish xml file sent to the browser, >which has a variety of links to other xml content from other servers. >Those links would have whatever attributes are necessary to indicate that >the semantics are to pull in the pointed-to content as if it were inlined. > >Now, some of that pointed-to content will load faster than others >in that page. Some will fail to load at all. Meanwhile, the layout >engine is hopefully able to do something useful. In particular, the >xsl style sheet may actually be suppressing some of the xml anyway, >so failures to load in those subtrees shouldn't matter. >While visible content is loading, it would of course be nice if bounding >boxes and temporary labels/content are shown. > >This basically requires a layout engine that can act on the xml >with the xsl pattern matches acting as closures when the actual "expanded" xml >isn't available yet. > >Has this all been spec'd yet? Are there working examples? >What is the right terminology? What does this mean for the DOM? > >It strikes me that this isn't a "nice-to-have"; this issue is going to >have to be confronted somehow as soon as xml becomes more available on the web. > >-mda XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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