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fix(clipboard): dashboard Ctrl+C direct copy; TUI honest feedback; HERMES_TUI_FORCE_OSC52

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- Dashboard copy: direct Clipboard API on Ctrl+C/Cmd+C (user gesture);
  send Escape to TUI to clear selection; Ctrl+Shift+C kept as fallback.
- TUI /copy: copySelection() async; only reports success if OSC52 emitted.
- Add HERMES_TUI_FORCE_OSC52 env var to override native-tool detection.
- Fixes "copied N chars" false-positive when clipboard backend absent.

Changes:
  web/src/pages/ChatPage.tsx — direct navigator.clipboard.writeText
  ui-tui/packages/hermes-ink/src/ink/ink.tsx — async copySelection
  ui-tui/packages/hermes-ink/src/ink/termio/osc.ts — HERMES_TUI_FORCE_OSC52
  ui-tui/src/app/slash/commands/core.ts — async /copy with honest feedback
This commit is contained in:
Harry Riddle 2026-04-26 18:37:21 +07:00 • committed by Teknium
parent a562420383
commit 0f3a6f0fb3
4 changed files with 42 additions and 13 deletions
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30
ui-tui/packages/hermes-ink/src/ink/ink.tsx
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@ -1301,7 +1301,13 @@ export default class Ink {
* highlight. Matches iTerm2's copy-on-select behavior where the selected
* region stays visible after the automatic copy.
*/
copySelectionNoClear(): string {
/**
* Copy the current text selection to the system clipboard without clearing the
* selection. Returns the copied text on success (empty if no selection or
* clipboard operation failed). Success is determined by whether an OSC 52
* sequence was emitted (native/tmux paths do not produce a sequence).
*/
async copySelectionNoClear(): Promise<string> {
if (!hasSelection(this.selection)) {
return ''
}
@ -1309,28 +1315,36 @@ export default class Ink {
const text = getSelectedText(this.selection, this.frontFrame.screen)
if (text) {
void setClipboard(text).then(raw => {
try {
const raw = await setClipboard(text)
if (raw) {
this.options.stdout.write(raw)
} else if (process.env.HERMES_TUI_DEBUG_CLIPBOARD) {
return text
}
if (process.env.HERMES_TUI_DEBUG_CLIPBOARD) {
console.error('[clipboard] [osc52] no sequence emitted — native clipboard or tmux buffer path in use')
}
})
} catch (err) {
if (process.env.HERMES_TUI_DEBUG_CLIPBOARD) {
console.error('[clipboard] [osc52] error:', err)
}
}
}
return text
return ''
}
/**
* Copy the current text selection to the system clipboard via OSC 52
* and clear the selection. Returns the copied text (empty if no selection).
* and clear the selection. Returns the copied text (empty if no selection
* or clipboard operation failed).
*/
copySelection(): string {
async copySelection(): Promise<string> {
if (!hasSelection(this.selection)) {
return ''
}
const text = this.copySelectionNoClear()
const text = await this.copySelectionNoClear()
clearSelection(this.selection)
this.notifySelectionChange()