Clicking "(edited)" opens the full history viewer (keep). Add a hover/focus tooltip on the "(edited)" label showing only the last edit as a word diff: removed words struck, added words bold. Pure diff helper (utils/wordDiff.ts, unit-tested, LCS on words, cap at ~400 words then fall back to "open history"). Plain-text bodies only (formatted edits fall back to the viewer). Mobile: long-press = same tooltip.
Clicking "(edited)" opens the full history viewer (keep). Add a hover/focus tooltip on the "(edited)" label showing only the **last** edit as a word diff: removed words struck, added words bold. Pure diff helper (`utils/wordDiff.ts`, unit-tested, LCS on words, cap at ~400 words then fall back to "open history"). Plain-text bodies only (formatted edits fall back to the viewer). Mobile: long-press = same tooltip.
Hover/focus on (edited) → tooltip with only the last edit as a word diff (removed struck, added bold) and a +N · −N summary; click still opens the history viewer.
Touch: long-press on the label shows the same diff as a popout (dismissed by tapping elsewhere/scrolling/6 s); a plain tap opens the viewer; the message's own long-press action sheet is not triggered.
utils/wordDiff.ts: LCS over words, whitespace-only changes ignored, gives up past 400 words (7 unit tests). Plain-text bodies only; formatted edits show no tooltip and fall back to the viewer.
Headless: message edited twice (quick→brown, then 5→6 tonight); tooltip shows only the second change: del: ['5 '] ins: ['6 tonight ']. Pixel 7 emulation: long-press → popout visible, action sheet 0, viewer not opened; tap → viewer opened.
Done in 2bdb2eb4.
- Hover/focus on **(edited)** → tooltip with only the *last* edit as a word diff (removed struck, added bold) and a `+N · −N` summary; click still opens the history viewer.
- Touch: long-press on the label shows the same diff as a popout (dismissed by tapping elsewhere/scrolling/6 s); a plain tap opens the viewer; the message's own long-press action sheet is not triggered.
- `utils/wordDiff.ts`: LCS over words, whitespace-only changes ignored, gives up past 400 words (7 unit tests). Plain-text bodies only; formatted edits show no tooltip and fall back to the viewer.
Headless: message edited twice (`quick→brown`, then `5→6 tonight`); tooltip shows only the second change: `del: ['5 '] ins: ['6 tonight ']`. Pixel 7 emulation: long-press → popout visible, action sheet 0, viewer not opened; tap → viewer opened.
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Clicking "(edited)" opens the full history viewer (keep). Add a hover/focus tooltip on the "(edited)" label showing only the last edit as a word diff: removed words struck, added words bold. Pure diff helper (
utils/wordDiff.ts, unit-tested, LCS on words, cap at ~400 words then fall back to "open history"). Plain-text bodies only (formatted edits fall back to the viewer). Mobile: long-press = same tooltip.Done in
2bdb2eb4.+N · −Nsummary; click still opens the history viewer.utils/wordDiff.ts: LCS over words, whitespace-only changes ignored, gives up past 400 words (7 unit tests). Plain-text bodies only; formatted edits show no tooltip and fall back to the viewer.Headless: message edited twice (
quick→brown, then5→6 tonight); tooltip shows only the second change:del: ['5 '] ins: ['6 tonight ']. Pixel 7 emulation: long-press → popout visible, action sheet 0, viewer not opened; tap → viewer opened.