Update twiddler text from widget

[Tony Grosinger]

I am making a widget that is designed to have content between the widget tags. For example:

<$mywidget>
    Content
    Content
    Content
</$mywidget>

Is it possible to have my widget alter the contents? I know it is possible to edit the text of the whole twiddler, but was hoping for something a little more straight-forward that didn't require finding the particular instance of my widget.

I tried updating this.parseTreeNode.children but that didn't seem to have any effect on the actual twiddler contents.

Thank you.

[BJ]

The answer is 'yes' but the solution depends upon what you are trying to achieve. Usually the editing of text is done on a per tiddler basic, so if you have a block of text you want to control you would put it in its own tiddler and use the transclude widget to display the contents.

all the best

BJ

[Jeremy Ruston]

Hi Tony

Is it possible to have my widget alter the contents? I know it is possible to edit the text of the whole twiddler, but was hoping for something a little more straight-forward that didn't require finding the particular instance of my widget.

There's no support at the moment for widgets to modify the wikitext from which they were parsed. Part of the reason is that the possibility of assembling wikitext within a macro means that there is not necessarily a simple correspondence between an instance of a widget and the original source wikitext.

The TiddlyWiki approach would be instead for <$mywidget> to reference its content in another tiddler, and to modify the content of that tiddler as required.

Best wishes

Jeremy.

 

I tried updating this.parseTreeNode.children but that didn't seem to have any effect on the actual twiddler contents.

Thank you.

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Jeremy Ruston
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[Tony Grosinger]

That works too and should be easy enough. The only reason I wanted to put it in the same tiddler was to make the notes a little more hand-editable.

Thank you for the fast responses.

[Tobias Beer]

Hi Tony,

 

That works too and should be easy enough. The only reason I wanted to put it in the same tiddler was to make the notes a little more hand-editable.

I'd say it is ...by editing the tiddler containing the widget. I understand you wanted a simple way to just edit the widget contents, but then that's difficult as mentioned above.

What you could also try is have your widget point to a field that is to hold what now are the widget contents and then use a textarea for editing. Such multiline fields however are not supported for working with node.js (#1947) atm.

Best wishes,

— tb