Hi Adam
> I'm trying to build a widget that fills a state tiddler with information
> about the window and document dimensions. I'm wanting to refresh the widget
> whenever the window is resized or document offsetHeight changes, rather than
> whenever a tiddler is changed. Anyone know of any way to do that?
You can construct a widget that refreshes whenever the viewport size changes
using the DynaView plugin. It maintains a state tiddler
$:/state/DynaView/ViewportDimensions/ResizeCount that contains a count that is
incremented at each refresh. Widgets can check for modifications to that
tiddler in their refresh method. For example:
if(changedTiddlers["$:/state/DynaView/ViewportDimensions/ResizeCount"]) {
foo()
}
The DynaView plugin also saves the viewport size in the tiddlers
$:/state/DynaView/ViewportDimensions/Width and
$:/state/DynaView/ViewportDimensions/Height, although it doesn’t track changes
to the rendered document size.
The DynaView plugin can be installed from the official plugin library, and you
can try it out here:
https://tiddlywiki.com/plugins/tiddlywiki/dynaview/#%24%3A%2Fplugins%2Ftiddlywiki%2Fdynaview
Best wishes
Jeremy.
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