> The slider isn't really the issue. The problem is that data in a form
> tiddler does not appear in transclusion (e.g., when using the
> <<tiddler>> macro) - all you can see is the outline of the form, not
> the contents of the form fields.
The problem originates with the 'lookup function' that
[[FormTiddlerPlugin]] is using to identify the tiddler in which the
<<formTiddler>> macro and <data>...</data> block are stored (the
"source" tiddler).
Here's what that function currently looks like:
------------------------------------------
config.macros.formTiddler.getContainingTiddlerName = function(element)
{
return story.findContainingTiddler(element).id.substr(7);
}
------------------------------------------
Unfortunately, story.findContainingTiddler() (a standard TW core
function) always returns the title of the *outermost* containing
tiddler -- in this case, the one that invokes the <<tiddler>> macro --
rather than name the actual source tiddler that was transcluded when
that macro was processed. This, of course, produces the results that
you have observed: the plugin is unable to retrieve the form data,
because it is looking in the wrong tiddler!
Fortunately, there may be a relatively easy solution...
The key is to know that, whenever a tiddler is displayed in the story
column, it is contained within a 'wrapper' element that includes a
special "tiddler" attribute that holds the title of the current
tiddler.
Similarly, whenever a <<tiddler>> macro is processed, the transcluded
content is also contained in a wrapper element that has its own
"tiddler" attribute, set to the title of the source tiddler that was
transcluded.
The fix involves re-defining the FormTiddlerPlugin lookup function, so
that it will find the *innermost* wrapper that has a "tiddler"
attribute, and then use *that* value to retrieve the correct
<data>...</data> block.
We can do this by adding an extra tiddler, e.g.,
[[FormTiddlerPluginTweak]], tagged with 'systemConfig', with the
following replacement code:
------------------------------------------
config.macros.formTiddler.getContainingTiddlerName = function(e) {
// find transcluded OR containing tiddler
while(e && !e.getAttribute("tiddler")) e=e.parentNode;
return e?e.getAttribute("tiddler"):e;
};
------------------------------------------
PLUS: as an added bonus, because 'transclusion' via the <<tabs>> macro
works the same way as the <<tiddler>> macro (i.e., it sets the
"tiddler" attribute of the containing wrapper), this 'tweak' should
also fix the same problem when using forms from within tabs!
Give it a try and let me know what happens...
enjoy,
-e
Eric Shulman
TiddlyTools / ELS Design Studios
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