MR wrote: > Hi everyone, > > I spent an awful lot of time last night learning that if I instantiate > a widget and call it's render method that the javascript files > referenced with "javascript = JSLink(...)" are apparently not made > available in the serialized output (or any other way I could find) to > be loaded into the document's head (or anywhere else for that > matter)...But obviously the javascript is automatically loaded into the > head for you when you call a widget's display() method from the kid > template. > > What I was trying to do was use render() to get a widget's HTML so that > I could shove it into a div at some point after a page had been loaded. > The HTML arrived just fine, but the JavaScript did not. This was > totally counter-intutive to me, so could someone please comment on why > render() doesn't include the JavaScript in a <script> tag as part of > the serialized output? I really am just trying to find a way to get a > widget's JavaScript so that it can be loaded into a page *without* > using display().
I would guess this happens because newly included scripts are automatically executed and would step over any state variables they contain. You should be able to programmatically get at a widget's JSLink/JSSource with the widgets retrieve_javascript() method. From there it gets a little more tricky, at least for JSLinks. You should be able to build the address for a JSLink with the following string interpolation: "/%stg_widgets/%s/%s" % (turbogears.startup.webpath, <widget>.mod, <widget>.name) Returning the source of a JSSource is easy, it is stored as <widget>.src > > Is there an approved way to get at the actual javascript with an > existing mechanism, or is my assumption that it's a "good idea" to try > and do this for purposes of loading JavaScript into the head after page > load actually a bad idea? >From what I have seen this isn't supported on Opera < 8.0. Might not be supported on other platforms as well. I didn't spend much time looking into it. > > > An example (not tested, but serves the example) > > def FooWidget(Widget): > > template = "..." > javascript = [JSLink(...)] > > > def someMethodInController(): > foo = FooWidget() > html = foo.render() > #how to get javascript out of FooWidget with instantiation of > FooWidget? > #I want to create a script element and shove it into a page after > page load --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "TurboGears" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/turbogears?hl=en -~----------~----~----~----~------~----~------~--~---
