[TW5] Is there a built-in method for retrieving a macro's calling tiddler element/DOM node?

[Novan Leon]

QUESTION: Is there a built-in method for retrieving a macro's or widget's calling tiddler element/DOM node?

For example, in TWC you could use story.findContainingTiddler(popup_element) to find a popup's calling tiddler's DOM node.

Identifying the calling tiddler element provides a way to set the context for traversing the DOM node tree for a specific tiddler (as opposed to say, the entire "document").

[Jeremy Ruston]

Hi Novan

QUESTION: Is there a built-in method for retrieving a macro's or widget's calling tiddler element/DOM node?

Just to clarify the question, JavaScript macros are invoked with “this” pointing to the widget in whose context the macro is to be evaluated, just as a method of the widget object would be.

Anyhow, widgets have a couple of standard properties that connect them to the DOM tree:

* domNodes, an array of references to the DOM nodes created by the widget itself

* parentDomNode, a reference to the immediate parent DOM node of the widget

For example, in TWC you could use story.findContainingTiddler(popup_element) to find a popup's calling tiddler's DOM node.

In TW5, there’s far less direct manipulation of the DOM. Unlike TWC, state is not kept in the DOM; instead the DOM is dynamically recreated as required from the state data stored in tiddlers.

Best wishes

Jeremy.

Identifying the calling tiddler element provides a way to set the context for traversing the DOM node tree for a specific tiddler (as opposed to say, the entire "document”).

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[Novan Leon]

That helps. Thanks.