Implement word wrapping in the preview window

Example:
  fzf --preview 'bat --style=plain --color=always {}' \
      --preview-window wrap-word \
      --bind space:toggle-preview-wrap-word

Close https://github.com/junegunn/fzf/discussions/3383
This commit is contained in:
Junegunn Choi
2026-02-18 13:21:33 +09:00
parent b56d614ba2
commit b6411beaa1
12 changed files with 483 additions and 222 deletions

View File

@@ -107,82 +107,83 @@ func _() {
_ = x[actHidePreview-96]
_ = x[actTogglePreview-97]
_ = x[actTogglePreviewWrap-98]
_ = x[actTransform-99]
_ = x[actTransformBorderLabel-100]
_ = x[actTransformGhost-101]
_ = x[actTransformHeader-102]
_ = x[actTransformFooter-103]
_ = x[actTransformHeaderLabel-104]
_ = x[actTransformFooterLabel-105]
_ = x[actTransformInputLabel-106]
_ = x[actTransformListLabel-107]
_ = x[actTransformNth-108]
_ = x[actTransformPointer-109]
_ = x[actTransformPreviewLabel-110]
_ = x[actTransformPrompt-111]
_ = x[actTransformQuery-112]
_ = x[actTransformSearch-113]
_ = x[actTrigger-114]
_ = x[actBgTransform-115]
_ = x[actBgTransformBorderLabel-116]
_ = x[actBgTransformGhost-117]
_ = x[actBgTransformHeader-118]
_ = x[actBgTransformFooter-119]
_ = x[actBgTransformHeaderLabel-120]
_ = x[actBgTransformFooterLabel-121]
_ = x[actBgTransformInputLabel-122]
_ = x[actBgTransformListLabel-123]
_ = x[actBgTransformNth-124]
_ = x[actBgTransformPointer-125]
_ = x[actBgTransformPreviewLabel-126]
_ = x[actBgTransformPrompt-127]
_ = x[actBgTransformQuery-128]
_ = x[actBgTransformSearch-129]
_ = x[actBgCancel-130]
_ = x[actSearch-131]
_ = x[actPreview-132]
_ = x[actPreviewTop-133]
_ = x[actPreviewBottom-134]
_ = x[actPreviewUp-135]
_ = x[actPreviewDown-136]
_ = x[actPreviewPageUp-137]
_ = x[actPreviewPageDown-138]
_ = x[actPreviewHalfPageUp-139]
_ = x[actPreviewHalfPageDown-140]
_ = x[actPrevHistory-141]
_ = x[actPrevSelected-142]
_ = x[actPrint-143]
_ = x[actPut-144]
_ = x[actNextHistory-145]
_ = x[actNextSelected-146]
_ = x[actExecute-147]
_ = x[actExecuteSilent-148]
_ = x[actExecuteMulti-149]
_ = x[actSigStop-150]
_ = x[actBest-151]
_ = x[actFirst-152]
_ = x[actLast-153]
_ = x[actReload-154]
_ = x[actReloadSync-155]
_ = x[actDisableSearch-156]
_ = x[actEnableSearch-157]
_ = x[actSelect-158]
_ = x[actDeselect-159]
_ = x[actUnbind-160]
_ = x[actRebind-161]
_ = x[actToggleBind-162]
_ = x[actBecome-163]
_ = x[actShowHeader-164]
_ = x[actHideHeader-165]
_ = x[actBell-166]
_ = x[actExclude-167]
_ = x[actExcludeMulti-168]
_ = x[actAsync-169]
_ = x[actTogglePreviewWrapWord-99]
_ = x[actTransform-100]
_ = x[actTransformBorderLabel-101]
_ = x[actTransformGhost-102]
_ = x[actTransformHeader-103]
_ = x[actTransformFooter-104]
_ = x[actTransformHeaderLabel-105]
_ = x[actTransformFooterLabel-106]
_ = x[actTransformInputLabel-107]
_ = x[actTransformListLabel-108]
_ = x[actTransformNth-109]
_ = x[actTransformPointer-110]
_ = x[actTransformPreviewLabel-111]
_ = x[actTransformPrompt-112]
_ = x[actTransformQuery-113]
_ = x[actTransformSearch-114]
_ = x[actTrigger-115]
_ = x[actBgTransform-116]
_ = x[actBgTransformBorderLabel-117]
_ = x[actBgTransformGhost-118]
_ = x[actBgTransformHeader-119]
_ = x[actBgTransformFooter-120]
_ = x[actBgTransformHeaderLabel-121]
_ = x[actBgTransformFooterLabel-122]
_ = x[actBgTransformInputLabel-123]
_ = x[actBgTransformListLabel-124]
_ = x[actBgTransformNth-125]
_ = x[actBgTransformPointer-126]
_ = x[actBgTransformPreviewLabel-127]
_ = x[actBgTransformPrompt-128]
_ = x[actBgTransformQuery-129]
_ = x[actBgTransformSearch-130]
_ = x[actBgCancel-131]
_ = x[actSearch-132]
_ = x[actPreview-133]
_ = x[actPreviewTop-134]
_ = x[actPreviewBottom-135]
_ = x[actPreviewUp-136]
_ = x[actPreviewDown-137]
_ = x[actPreviewPageUp-138]
_ = x[actPreviewPageDown-139]
_ = x[actPreviewHalfPageUp-140]
_ = x[actPreviewHalfPageDown-141]
_ = x[actPrevHistory-142]
_ = x[actPrevSelected-143]
_ = x[actPrint-144]
_ = x[actPut-145]
_ = x[actNextHistory-146]
_ = x[actNextSelected-147]
_ = x[actExecute-148]
_ = x[actExecuteSilent-149]
_ = x[actExecuteMulti-150]
_ = x[actSigStop-151]
_ = x[actBest-152]
_ = x[actFirst-153]
_ = x[actLast-154]
_ = x[actReload-155]
_ = x[actReloadSync-156]
_ = x[actDisableSearch-157]
_ = x[actEnableSearch-158]
_ = x[actSelect-159]
_ = x[actDeselect-160]
_ = x[actUnbind-161]
_ = x[actRebind-162]
_ = x[actToggleBind-163]
_ = x[actBecome-164]
_ = x[actShowHeader-165]
_ = x[actHideHeader-166]
_ = x[actBell-167]
_ = x[actExclude-168]
_ = x[actExcludeMulti-169]
_ = x[actAsync-170]
}
const _actionType_name = "actIgnoreactStartactClickactInvalidactBracketedPasteBeginactBracketedPasteEndactCharactMouseactBeginningOfLineactAbortactAcceptactAcceptNonEmptyactAcceptOrPrintQueryactBackwardCharactBackwardDeleteCharactBackwardDeleteCharEofactBackwardWordactBackwardSubWordactCancelactChangeBorderLabelactChangeGhostactChangeHeaderactChangeFooteractChangeHeaderLabelactChangeFooterLabelactChangeInputLabelactChangeListLabelactChangeMultiactChangeNthactChangePointeractChangePreviewactChangePreviewLabelactChangePreviewWindowactChangePromptactChangeQueryactClearScreenactClearQueryactClearSelectionactCloseactDeleteCharactDeleteCharEofactEndOfLineactFatalactForwardCharactForwardWordactForwardSubWordactKillLineactKillWordactKillSubWordactUnixLineDiscardactUnixWordRuboutactYankactBackwardKillWordactBackwardKillSubWordactSelectAllactDeselectAllactToggleactToggleSearchactToggleAllactToggleDownactToggleUpactToggleInactToggleOutactToggleTrackactToggleTrackCurrentactToggleHeaderactToggleWrapactToggleMultiLineactToggleHscrollactToggleRawactEnableRawactDisableRawactTrackCurrentactToggleInputactHideInputactShowInputactUntrackCurrentactDownactDownMatchactUpactUpMatchactPageUpactPageDownactPositionactHalfPageUpactHalfPageDownactOffsetUpactOffsetDownactOffsetMiddleactJumpactJumpAcceptactPrintQueryactRefreshPreviewactReplaceQueryactToggleSortactShowPreviewactHidePreviewactTogglePreviewactTogglePreviewWrapactTransformactTransformBorderLabelactTransformGhostactTransformHeaderactTransformFooteractTransformHeaderLabelactTransformFooterLabelactTransformInputLabelactTransformListLabelactTransformNthactTransformPointeractTransformPreviewLabelactTransformPromptactTransformQueryactTransformSearchactTriggeractBgTransformactBgTransformBorderLabelactBgTransformGhostactBgTransformHeaderactBgTransformFooteractBgTransformHeaderLabelactBgTransformFooterLabelactBgTransformInputLabelactBgTransformListLabelactBgTransformNthactBgTransformPointeractBgTransformPreviewLabelactBgTransformPromptactBgTransformQueryactBgTransformSearchactBgCancelactSearchactPreviewactPreviewTopactPreviewBottomactPreviewUpactPreviewDownactPreviewPageUpactPreviewPageDownactPreviewHalfPageUpactPreviewHalfPageDownactPrevHistoryactPrevSelectedactPrintactPutactNextHistoryactNextSelectedactExecuteactExecuteSilentactExecuteMultiactSigStopactBestactFirstactLastactReloadactReloadSyncactDisableSearchactEnableSearchactSelectactDeselectactUnbindactRebindactToggleBindactBecomeactShowHeaderactHideHeaderactBellactExcludeactExcludeMultiactAsync"
const _actionType_name = "actIgnoreactStartactClickactInvalidactBracketedPasteBeginactBracketedPasteEndactCharactMouseactBeginningOfLineactAbortactAcceptactAcceptNonEmptyactAcceptOrPrintQueryactBackwardCharactBackwardDeleteCharactBackwardDeleteCharEofactBackwardWordactBackwardSubWordactCancelactChangeBorderLabelactChangeGhostactChangeHeaderactChangeFooteractChangeHeaderLabelactChangeFooterLabelactChangeInputLabelactChangeListLabelactChangeMultiactChangeNthactChangePointeractChangePreviewactChangePreviewLabelactChangePreviewWindowactChangePromptactChangeQueryactClearScreenactClearQueryactClearSelectionactCloseactDeleteCharactDeleteCharEofactEndOfLineactFatalactForwardCharactForwardWordactForwardSubWordactKillLineactKillWordactKillSubWordactUnixLineDiscardactUnixWordRuboutactYankactBackwardKillWordactBackwardKillSubWordactSelectAllactDeselectAllactToggleactToggleSearchactToggleAllactToggleDownactToggleUpactToggleInactToggleOutactToggleTrackactToggleTrackCurrentactToggleHeaderactToggleWrapactToggleMultiLineactToggleHscrollactToggleRawactEnableRawactDisableRawactTrackCurrentactToggleInputactHideInputactShowInputactUntrackCurrentactDownactDownMatchactUpactUpMatchactPageUpactPageDownactPositionactHalfPageUpactHalfPageDownactOffsetUpactOffsetDownactOffsetMiddleactJumpactJumpAcceptactPrintQueryactRefreshPreviewactReplaceQueryactToggleSortactShowPreviewactHidePreviewactTogglePreviewactTogglePreviewWrapactTogglePreviewWrapWordactTransformactTransformBorderLabelactTransformGhostactTransformHeaderactTransformFooteractTransformHeaderLabelactTransformFooterLabelactTransformInputLabelactTransformListLabelactTransformNthactTransformPointeractTransformPreviewLabelactTransformPromptactTransformQueryactTransformSearchactTriggeractBgTransformactBgTransformBorderLabelactBgTransformGhostactBgTransformHeaderactBgTransformFooteractBgTransformHeaderLabelactBgTransformFooterLabelactBgTransformInputLabelactBgTransformListLabelactBgTransformNthactBgTransformPointeractBgTransformPreviewLabelactBgTransformPromptactBgTransformQueryactBgTransformSearchactBgCancelactSearchactPreviewactPreviewTopactPreviewBottomactPreviewUpactPreviewDownactPreviewPageUpactPreviewPageDownactPreviewHalfPageUpactPreviewHalfPageDownactPrevHistoryactPrevSelectedactPrintactPutactNextHistoryactNextSelectedactExecuteactExecuteSilentactExecuteMultiactSigStopactBestactFirstactLastactReloadactReloadSyncactDisableSearchactEnableSearchactSelectactDeselectactUnbindactRebindactToggleBindactBecomeactShowHeaderactHideHeaderactBellactExcludeactExcludeMultiactAsync"
var _actionType_index = [...]uint16{0, 9, 17, 25, 35, 57, 77, 84, 92, 110, 118, 127, 144, 165, 180, 201, 225, 240, 258, 267, 287, 301, 316, 331, 351, 371, 390, 408, 422, 434, 450, 466, 487, 509, 524, 538, 552, 565, 582, 590, 603, 619, 631, 639, 653, 667, 684, 695, 706, 720, 738, 755, 762, 781, 803, 815, 829, 838, 853, 865, 878, 889, 900, 912, 926, 947, 962, 975, 993, 1009, 1021, 1033, 1046, 1061, 1075, 1087, 1099, 1116, 1123, 1135, 1140, 1150, 1159, 1170, 1181, 1194, 1209, 1220, 1233, 1248, 1255, 1268, 1281, 1298, 1313, 1326, 1340, 1354, 1370, 1390, 1402, 1425, 1442, 1460, 1478, 1501, 1524, 1546, 1567, 1582, 1601, 1625, 1643, 1660, 1678, 1688, 1702, 1727, 1746, 1766, 1786, 1811, 1836, 1860, 1883, 1900, 1921, 1947, 1967, 1986, 2006, 2017, 2026, 2036, 2049, 2065, 2077, 2091, 2107, 2125, 2145, 2167, 2181, 2196, 2204, 2210, 2224, 2239, 2249, 2265, 2280, 2290, 2297, 2305, 2312, 2321, 2334, 2350, 2365, 2374, 2385, 2394, 2403, 2416, 2425, 2438, 2451, 2458, 2468, 2483, 2491}
var _actionType_index = [...]uint16{0, 9, 17, 25, 35, 57, 77, 84, 92, 110, 118, 127, 144, 165, 180, 201, 225, 240, 258, 267, 287, 301, 316, 331, 351, 371, 390, 408, 422, 434, 450, 466, 487, 509, 524, 538, 552, 565, 582, 590, 603, 619, 631, 639, 653, 667, 684, 695, 706, 720, 738, 755, 762, 781, 803, 815, 829, 838, 853, 865, 878, 889, 900, 912, 926, 947, 962, 975, 993, 1009, 1021, 1033, 1046, 1061, 1075, 1087, 1099, 1116, 1123, 1135, 1140, 1150, 1159, 1170, 1181, 1194, 1209, 1220, 1233, 1248, 1255, 1268, 1281, 1298, 1313, 1326, 1340, 1354, 1370, 1390, 1414, 1426, 1449, 1466, 1484, 1502, 1525, 1548, 1570, 1591, 1606, 1625, 1649, 1667, 1684, 1702, 1712, 1726, 1751, 1770, 1790, 1810, 1835, 1860, 1884, 1907, 1924, 1945, 1971, 1991, 2010, 2030, 2041, 2050, 2060, 2073, 2089, 2101, 2115, 2131, 2149, 2169, 2191, 2205, 2220, 2228, 2234, 2248, 2263, 2273, 2289, 2304, 2314, 2321, 2329, 2336, 2345, 2358, 2374, 2389, 2398, 2409, 2418, 2427, 2440, 2449, 2462, 2475, 2482, 2492, 2507, 2515}
func (i actionType) String() string {
if i < 0 || i >= actionType(len(_actionType_index)-1) {