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wip: Leaf Cursor Navigation + Simple Editing #16
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LsmMathmlView can determine which element is at the given coordinates (in 'equation scale') and return it to the caller for introspection. Implements support for this in the demo.
In addition to type and cursor X/Y, we should report the position, width, height, and depth of the node.
Navigate through the DOM using the left and right arrow keys. The cursor keeps track of an active element as well as a position index within the element.
A very primitive approach at finding the nearest insertion point. A better solution would use the distance between lines (accounting for differences in element heights) rather than midpoints. This is a welcome start however.
Instead of midpoints, as is done currently. Yields more reliable results.
Loop until we find a caret location not associated with the parent element. Works well enough for the mean time, but has some problems with e.g. fractions.
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Uses the 'Leaf Navigation' approach from #11.
Allows for very simple insertion/deletion:
aas an identifierLasem.Cursor.Demo.2.mp4