Connor Peet
f5952f92c0
* monaco: improve handling of glyph margins In my previous PR #202048, I added another glyph margin lane. However I didn't realize in some cases the support I added was incomplete since the rendering code did not fully handle an unbounded number of lanes. Also, I noticed in existing issues with hover and click handling because some parts of VS Code still assume there's at most a single glyph widget visible. It is hard to determine which glyph widget is interacted with without checking what classes are applied to the glyph element, which is what most existing code does. And we probably shouldn't do that in e.g. the MouseHandler to determine what glyph is being clicked on. So in this PR I added a `GlyphMarginLanesModel` that contains the information necessary for rendering. I also want to expose it in a place that the MouseHandler or MouseTarget can get at, but I wasn't sure the best way to do that, any suggestions @alexdima? Implementation-wise I opted for a flag Uint8Array. A 1024 line file with decorations on the last line, it would take 384 bytes to hold decoration positions. I also tried out a Range array based implementation, but I think this is faster (for cases where there are lots of decorations) and much simpler, in exchange for higher memory usage in edge cases (very long files with decorations near the end.) * allow lanes to be persisted to avoid jumping bp icons
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