iris
3bb178363d
The chip was the renderer's span background, and a span's background is part of the text's own drawing: the text node paints the selection first and the glyphs over it, so an opaque chip covered the selection and selecting a sentence highlighted every word of it except the ones in backticks. The previous fix let the selection show through by taking the chip to 60% alpha, which is a compromise on both sides -- the chip is a weaker step down from the page, and selected it reached #3C344F where the words around it reached #776394. There is a place that is under both, and a fenced block was already in it: a modifier on the text rather than a style inside it. So `appendCodeChip` takes the code span from the renderer's inline builder, keeps its style and its space of padding either side but drops the background, and marks the range; `LinkedText` draws those ranges in a `drawBehind`. The chip is back to the full `rawSurface` fill (measured #11111B against a #1E1E2E page) and a selection over it now lands at #776394, the same as the rest of the sentence -- the fenced block's numbers exactly. The geometry is one box per line, from the bounding boxes of the run's first and last characters, taken as far as the line's `visibleEnd`. Not `getPathForRange`: that is the shape of a *selection*, which runs to the right edge of every line but the last, and a code span that wrapped left a full-width empty chip behind on the line above -- twice in one fixture. `visibleEnd` is the same rule the selection rectangle obeys, so the chip stops where the selection stops instead of sticking its padding space out past the end of a selected line. Checked on the emulator against a fixture with chips in a heading, three kinds of list item, a quote, a table cell and a link label, unselected and under Select All, and a link with a chip in its label still opens. Cost, against the same build without the change, streaming sixty paragraphs of three chips each: measure 755ms against 776ms, record 327ms against 321ms, transcript draw 0.22ms in both.