Add {show,hide,toggle}-input and expose $FZF_INPUT_STATE

CHANGELOG.md

@@ -35,6 +35,7 @@ CHANGELOG
       --header-border bottom --input-border \
       --bind 'click-header:transform-search:echo ${FZF_CLICK_HEADER_WORD:1:-1}'
   ```
+    - You can later show the input section using `show-input` or `toggle-input` action, and hide it again using `hide-input`, or `toggle-input`.
 - Extended `{q}` placeholder to support ranges. e.g. `{q:1}`, `{q:2..}`, etc.
 - Added `search(...)` and `transform-search(...)` action to trigger an fzf search with an arbitrary query string. This can be used to extend the search syntax of fzf. In the following example, fzf will use the first word of the query to trigger ripgrep search, and use the rest of the query to perform fzf search within the result.
   ```sh

man/man1/fzf.1

@@ -623,7 +623,9 @@ Position of the list label
 .TP
 .B "\-\-no\-input"
 Disable and hide the input section. You can no longer type in queries. To
-trigger a search, use \fBsearch\fR action.
+trigger a search, use \fBsearch\fR action. You can later show the input section
+using \fBshow\-input\fR or \fBtoggle\-input\fR action, and hide it again using
+\fBhide\-input\fR, or \fBtoggle\-input\fR.
 
 .TP
 .BI "\-\-prompt=" "STR"
@@ -1222,6 +1224,8 @@ fzf exports the following environment variables to its child processes.
 .br
 .BR FZF_QUERY "           Current query string"
 .br
+.BR FZF_INPUT_STATE "     Current input state (enabled, disabled, hidden)"
+.br
 .BR FZF_NTH "             Current \-\-nth option"
 .br
 .BR FZF_PROMPT "          Prompt string"
@@ -1610,6 +1614,7 @@ A key or an event can be bound to one or more of the following actions.
     \fBhalf\-page\-down\fR
     \fBhalf\-page\-up\fR
     \fBhide\-header\fR
+    \fBhide\-input\fR
     \fBhide\-preview\fR
     \fBoffset\-down\fR                  (similar to CTRL\-E of Vim)
     \fBoffset\-up\fR                    (similar to CTRL\-Y of Vim)
@@ -1638,6 +1643,7 @@ A key or an event can be bound to one or more of the following actions.
     \fBselect\fR
     \fBselect\-all\fR                   (select all matches)
     \fBshow\-header\fR
+    \fBshow\-input\fR
     \fBshow\-preview\fR
     \fBtoggle\fR                       (\fIright\-click\fR)
     \fBtoggle\-all\fR                   (toggle all matches)
@@ -1646,6 +1652,7 @@ A key or an event can be bound to one or more of the following actions.
     \fBtoggle\-bind\fR
     \fBtoggle\-header\fR
     \fBtoggle\-hscroll\fR
+    \fBtoggle\-input\fR
     \fBtoggle\-multi\-line\fR
     \fBtoggle\-preview\fR
     \fBtoggle\-preview\-wrap\fR

src/actiontype_string.go

@@ -66,80 +66,83 @@ func _() {
 	_ = x[actToggleMultiLine-55]
 	_ = x[actToggleHscroll-56]
 	_ = x[actTrackCurrent-57]
-	_ = x[actUntrackCurrent-58]
+	_ = x[actToggleInput-58]
-	_ = x[actDown-59]
+	_ = x[actHideInput-59]
-	_ = x[actUp-60]
+	_ = x[actShowInput-60]
-	_ = x[actPageUp-61]
+	_ = x[actUntrackCurrent-61]
-	_ = x[actPageDown-62]
+	_ = x[actDown-62]
-	_ = x[actPosition-63]
+	_ = x[actUp-63]
-	_ = x[actHalfPageUp-64]
+	_ = x[actPageUp-64]
-	_ = x[actHalfPageDown-65]
+	_ = x[actPageDown-65]
-	_ = x[actOffsetUp-66]
+	_ = x[actPosition-66]
-	_ = x[actOffsetDown-67]
+	_ = x[actHalfPageUp-67]
-	_ = x[actOffsetMiddle-68]
+	_ = x[actHalfPageDown-68]
-	_ = x[actJump-69]
+	_ = x[actOffsetUp-69]
-	_ = x[actJumpAccept-70]
+	_ = x[actOffsetDown-70]
-	_ = x[actPrintQuery-71]
+	_ = x[actOffsetMiddle-71]
-	_ = x[actRefreshPreview-72]
+	_ = x[actJump-72]
-	_ = x[actReplaceQuery-73]
+	_ = x[actJumpAccept-73]
-	_ = x[actToggleSort-74]
+	_ = x[actPrintQuery-74]
-	_ = x[actShowPreview-75]
+	_ = x[actRefreshPreview-75]
-	_ = x[actHidePreview-76]
+	_ = x[actReplaceQuery-76]
-	_ = x[actTogglePreview-77]
+	_ = x[actToggleSort-77]
-	_ = x[actTogglePreviewWrap-78]
+	_ = x[actShowPreview-78]
-	_ = x[actTransform-79]
+	_ = x[actHidePreview-79]
-	_ = x[actTransformBorderLabel-80]
+	_ = x[actTogglePreview-80]
-	_ = x[actTransformListLabel-81]
+	_ = x[actTogglePreviewWrap-81]
-	_ = x[actTransformInputLabel-82]
+	_ = x[actTransform-82]
-	_ = x[actTransformHeader-83]
+	_ = x[actTransformBorderLabel-83]
-	_ = x[actTransformHeaderLabel-84]
+	_ = x[actTransformListLabel-84]
-	_ = x[actTransformNth-85]
+	_ = x[actTransformInputLabel-85]
-	_ = x[actTransformPreviewLabel-86]
+	_ = x[actTransformHeader-86]
-	_ = x[actTransformPrompt-87]
+	_ = x[actTransformHeaderLabel-87]
-	_ = x[actTransformQuery-88]
+	_ = x[actTransformNth-88]
-	_ = x[actTransformSearch-89]
+	_ = x[actTransformPreviewLabel-89]
-	_ = x[actSearch-90]
+	_ = x[actTransformPrompt-90]
-	_ = x[actPreview-91]
+	_ = x[actTransformQuery-91]
-	_ = x[actChangePreview-92]
+	_ = x[actTransformSearch-92]
-	_ = x[actChangePreviewWindow-93]
+	_ = x[actSearch-93]
-	_ = x[actPreviewTop-94]
+	_ = x[actPreview-94]
-	_ = x[actPreviewBottom-95]
+	_ = x[actChangePreview-95]
-	_ = x[actPreviewUp-96]
+	_ = x[actChangePreviewWindow-96]
-	_ = x[actPreviewDown-97]
+	_ = x[actPreviewTop-97]
-	_ = x[actPreviewPageUp-98]
+	_ = x[actPreviewBottom-98]
-	_ = x[actPreviewPageDown-99]
+	_ = x[actPreviewUp-99]
-	_ = x[actPreviewHalfPageUp-100]
+	_ = x[actPreviewDown-100]
-	_ = x[actPreviewHalfPageDown-101]
+	_ = x[actPreviewPageUp-101]
-	_ = x[actPrevHistory-102]
+	_ = x[actPreviewPageDown-102]
-	_ = x[actPrevSelected-103]
+	_ = x[actPreviewHalfPageUp-103]
-	_ = x[actPrint-104]
+	_ = x[actPreviewHalfPageDown-104]
-	_ = x[actPut-105]
+	_ = x[actPrevHistory-105]
-	_ = x[actNextHistory-106]
+	_ = x[actPrevSelected-106]
-	_ = x[actNextSelected-107]
+	_ = x[actPrint-107]
-	_ = x[actExecute-108]
+	_ = x[actPut-108]
-	_ = x[actExecuteSilent-109]
+	_ = x[actNextHistory-109]
-	_ = x[actExecuteMulti-110]
+	_ = x[actNextSelected-110]
-	_ = x[actSigStop-111]
+	_ = x[actExecute-111]
-	_ = x[actFirst-112]
+	_ = x[actExecuteSilent-112]
-	_ = x[actLast-113]
+	_ = x[actExecuteMulti-113]
-	_ = x[actReload-114]
+	_ = x[actSigStop-114]
-	_ = x[actReloadSync-115]
+	_ = x[actFirst-115]
-	_ = x[actDisableSearch-116]
+	_ = x[actLast-116]
-	_ = x[actEnableSearch-117]
+	_ = x[actReload-117]
-	_ = x[actSelect-118]
+	_ = x[actReloadSync-118]
-	_ = x[actDeselect-119]
+	_ = x[actDisableSearch-119]
-	_ = x[actUnbind-120]
+	_ = x[actEnableSearch-120]
-	_ = x[actRebind-121]
+	_ = x[actSelect-121]
-	_ = x[actToggleBind-122]
+	_ = x[actDeselect-122]
-	_ = x[actBecome-123]
+	_ = x[actUnbind-123]
-	_ = x[actShowHeader-124]
+	_ = x[actRebind-124]
-	_ = x[actHideHeader-125]
+	_ = x[actToggleBind-125]
-	_ = x[actBell-126]
+	_ = x[actBecome-126]
+	_ = x[actShowHeader-127]
+	_ = x[actHideHeader-128]
+	_ = x[actBell-129]
 }
 
-const _actionType_name = "actIgnoreactStartactClickactInvalidactCharactMouseactBeginningOfLineactAbortactAcceptactAcceptNonEmptyactAcceptOrPrintQueryactBackwardCharactBackwardDeleteCharactBackwardDeleteCharEofactBackwardWordactCancelactChangeBorderLabelactChangeListLabelactChangeInputLabelactChangeHeaderactChangeHeaderLabelactChangeMultiactChangePreviewLabelactChangePromptactChangeQueryactChangeNthactClearScreenactClearQueryactClearSelectionactCloseactDeleteCharactDeleteCharEofactEndOfLineactFatalactForwardCharactForwardWordactKillLineactKillWordactUnixLineDiscardactUnixWordRuboutactYankactBackwardKillWordactSelectAllactDeselectAllactToggleactToggleSearchactToggleAllactToggleDownactToggleUpactToggleInactToggleOutactToggleTrackactToggleTrackCurrentactToggleHeaderactToggleWrapactToggleMultiLineactToggleHscrollactTrackCurrentactUntrackCurrentactDownactUpactPageUpactPageDownactPositionactHalfPageUpactHalfPageDownactOffsetUpactOffsetDownactOffsetMiddleactJumpactJumpAcceptactPrintQueryactRefreshPreviewactReplaceQueryactToggleSortactShowPreviewactHidePreviewactTogglePreviewactTogglePreviewWrapactTransformactTransformBorderLabelactTransformListLabelactTransformInputLabelactTransformHeaderactTransformHeaderLabelactTransformNthactTransformPreviewLabelactTransformPromptactTransformQueryactTransformSearchactSearchactPreviewactChangePreviewactChangePreviewWindowactPreviewTopactPreviewBottomactPreviewUpactPreviewDownactPreviewPageUpactPreviewPageDownactPreviewHalfPageUpactPreviewHalfPageDownactPrevHistoryactPrevSelectedactPrintactPutactNextHistoryactNextSelectedactExecuteactExecuteSilentactExecuteMultiactSigStopactFirstactLastactReloadactReloadSyncactDisableSearchactEnableSearchactSelectactDeselectactUnbindactRebindactToggleBindactBecomeactShowHeaderactHideHeaderactBell"
+const _actionType_name = "actIgnoreactStartactClickactInvalidactCharactMouseactBeginningOfLineactAbortactAcceptactAcceptNonEmptyactAcceptOrPrintQueryactBackwardCharactBackwardDeleteCharactBackwardDeleteCharEofactBackwardWordactCancelactChangeBorderLabelactChangeListLabelactChangeInputLabelactChangeHeaderactChangeHeaderLabelactChangeMultiactChangePreviewLabelactChangePromptactChangeQueryactChangeNthactClearScreenactClearQueryactClearSelectionactCloseactDeleteCharactDeleteCharEofactEndOfLineactFatalactForwardCharactForwardWordactKillLineactKillWordactUnixLineDiscardactUnixWordRuboutactYankactBackwardKillWordactSelectAllactDeselectAllactToggleactToggleSearchactToggleAllactToggleDownactToggleUpactToggleInactToggleOutactToggleTrackactToggleTrackCurrentactToggleHeaderactToggleWrapactToggleMultiLineactToggleHscrollactTrackCurrentactToggleInputactHideInputactShowInputactUntrackCurrentactDownactUpactPageUpactPageDownactPositionactHalfPageUpactHalfPageDownactOffsetUpactOffsetDownactOffsetMiddleactJumpactJumpAcceptactPrintQueryactRefreshPreviewactReplaceQueryactToggleSortactShowPreviewactHidePreviewactTogglePreviewactTogglePreviewWrapactTransformactTransformBorderLabelactTransformListLabelactTransformInputLabelactTransformHeaderactTransformHeaderLabelactTransformNthactTransformPreviewLabelactTransformPromptactTransformQueryactTransformSearchactSearchactPreviewactChangePreviewactChangePreviewWindowactPreviewTopactPreviewBottomactPreviewUpactPreviewDownactPreviewPageUpactPreviewPageDownactPreviewHalfPageUpactPreviewHalfPageDownactPrevHistoryactPrevSelectedactPrintactPutactNextHistoryactNextSelectedactExecuteactExecuteSilentactExecuteMultiactSigStopactFirstactLastactReloadactReloadSyncactDisableSearchactEnableSearchactSelectactDeselectactUnbindactRebindactToggleBindactBecomeactShowHeaderactHideHeaderactBell"
 
-var _actionType_index = [...]uint16{0, 9, 17, 25, 35, 42, 50, 68, 76, 85, 102, 123, 138, 159, 183, 198, 207, 227, 245, 264, 279, 299, 313, 334, 349, 363, 375, 389, 402, 419, 427, 440, 456, 468, 476, 490, 504, 515, 526, 544, 561, 568, 587, 599, 613, 622, 637, 649, 662, 673, 684, 696, 710, 731, 746, 759, 777, 793, 808, 825, 832, 837, 846, 857, 868, 881, 896, 907, 920, 935, 942, 955, 968, 985, 1000, 1013, 1027, 1041, 1057, 1077, 1089, 1112, 1133, 1155, 1173, 1196, 1211, 1235, 1253, 1270, 1288, 1297, 1307, 1323, 1345, 1358, 1374, 1386, 1400, 1416, 1434, 1454, 1476, 1490, 1505, 1513, 1519, 1533, 1548, 1558, 1574, 1589, 1599, 1607, 1614, 1623, 1636, 1652, 1667, 1676, 1687, 1696, 1705, 1718, 1727, 1740, 1753, 1760}
+var _actionType_index = [...]uint16{0, 9, 17, 25, 35, 42, 50, 68, 76, 85, 102, 123, 138, 159, 183, 198, 207, 227, 245, 264, 279, 299, 313, 334, 349, 363, 375, 389, 402, 419, 427, 440, 456, 468, 476, 490, 504, 515, 526, 544, 561, 568, 587, 599, 613, 622, 637, 649, 662, 673, 684, 696, 710, 731, 746, 759, 777, 793, 808, 822, 834, 846, 863, 870, 875, 884, 895, 906, 919, 934, 945, 958, 973, 980, 993, 1006, 1023, 1038, 1051, 1065, 1079, 1095, 1115, 1127, 1150, 1171, 1193, 1211, 1234, 1249, 1273, 1291, 1308, 1326, 1335, 1345, 1361, 1383, 1396, 1412, 1424, 1438, 1454, 1472, 1492, 1514, 1528, 1543, 1551, 1557, 1571, 1586, 1596, 1612, 1627, 1637, 1645, 1652, 1661, 1674, 1690, 1705, 1714, 1725, 1734, 1743, 1756, 1765, 1778, 1791, 1798}
 
 func (i actionType) String() string {
 	if i < 0 || i >= actionType(len(_actionType_index)-1) {

src/options.go

@@ -1500,6 +1500,12 @@ func parseActionList(masked string, original string, prevActions []*action, putA
 			appendAction(actToggleTrack)
 		case "toggle-track-current":
 			appendAction(actToggleTrackCurrent)
+		case "toggle-input":
+			appendAction(actToggleInput)
+		case "hide-input":
+			appendAction(actHideInput)
+		case "show-input":
+			appendAction(actShowInput)
 		case "toggle-header":
 			appendAction(actToggleHeader)
 		case "toggle-wrap":

src/terminal.go

@@ -505,6 +505,9 @@ const (
 	actToggleMultiLine
 	actToggleHscroll
 	actTrackCurrent
+	actToggleInput
+	actHideInput
+	actShowInput
 	actUntrackCurrent
 	actDown
 	actUp
@@ -1064,6 +1067,13 @@ func (t *Terminal) environImpl(forPreview bool) []string {
 	if len(t.nthCurrent) > 0 {
 		env = append(env, "FZF_NTH="+RangesToString(t.nthCurrent))
 	}
+	inputState := "enabled"
+	if t.inputless {
+		inputState = "hidden"
+	} else if t.paused {
+		inputState = "disabled"
+	}
+	env = append(env, "FZF_INPUT_STATE="+inputState)
 	env = append(env, fmt.Sprintf("FZF_TOTAL_COUNT=%d", t.count))
 	env = append(env, fmt.Sprintf("FZF_MATCH_COUNT=%d", t.merger.Length()))
 	env = append(env, fmt.Sprintf("FZF_SELECT_COUNT=%d", len(t.selected)))
@@ -2492,22 +2502,29 @@ func (t *Terminal) printInfoImpl() {
 	}
 }
 
-func (t *Terminal) printHeader() {
+func (t *Terminal) resizeIfNeeded() bool {
+	// Check if input border is used and input has changed
+	if t.inputBorderShape.Visible() && t.inputWindow == nil && !t.inputless {
+		t.printAll()
+		return true
+	}
+
+	// Check if the header borders are used and header has changed
 	allHeaderLines := t.visibleHeaderLines()
 	primaryHeaderLines := allHeaderLines
 	if t.headerLinesShape.Visible() {
 		primaryHeaderLines -= t.headerLines
 	}
-	// We may need to resize header windows
 	if (t.headerBorderShape.Visible() || t.headerLinesShape.Visible()) &&
 		(t.headerWindow == nil && primaryHeaderLines > 0 || t.headerWindow != nil && primaryHeaderLines != t.headerWindow.Height()) ||
 		t.headerLinesShape.Visible() && (t.headerLinesWindow == nil && t.headerLines > 0 || t.headerLinesWindow != nil && t.headerLines != t.headerLinesWindow.Height()) {
-		t.resizeWindows(false, true)
+		t.printAll()
-		t.printList()
+		return true
-		t.printPrompt()
-		t.printInfo()
-		t.printPreview()
 	}
+	return false
+}
+
+func (t *Terminal) printHeader() {
 	if !t.headerVisible {
 		return
 	}
@@ -4498,7 +4515,11 @@ func (t *Terminal) Loop() error {
 				//  U t.uiMutex                 |
 				t.uiMutex.Lock()
 				t.mutex.Lock()
-				printInfo := util.RunOnce(t.printInfo)
+				printInfo := util.RunOnce(func() {
+					if !t.resizeIfNeeded() {
+						t.printInfo()
+					}
+				})
 				for _, key := range keys {
 					req := util.EventType(key)
 					value := (*events)[req]
@@ -4540,7 +4561,9 @@ func (t *Terminal) Loop() error {
 						}
 						t.printList()
 					case reqHeader:
-						t.printHeader()
+						if !t.resizeIfNeeded() {
+							t.printHeader()
+						}
 					case reqActivate:
 						t.suppress = false
 						if t.hasPreviewer() {
@@ -4796,6 +4819,7 @@ func (t *Terminal) Loop() error {
 			return true
 		}
 		doAction = func(a *action) bool {
+		Action:
 			switch a.t {
 			case actIgnore, actStart, actClick:
 			case actBecome:
@@ -5416,6 +5440,28 @@ func (t *Terminal) Loop() error {
 				t.forceRerenderList()
 				t.hscroll = !t.hscroll
 				req(reqList)
+			case actToggleInput, actShowInput, actHideInput:
+				switch a.t {
+				case actToggleInput:
+					t.inputless = !t.inputless
+				case actShowInput:
+					if !t.inputless {
+						break Action
+					}
+					t.inputless = false
+				case actHideInput:
+					if t.inputless {
+						break Action
+					}
+					t.inputless = true
+				}
+				t.forceRerenderList()
+				if t.inputless {
+					t.tui.HideCursor()
+				} else {
+					t.tui.ShowCursor()
+				}
+				req(reqList, reqInfo, reqPrompt, reqHeader)
 			case actTrackCurrent:
 				if t.track == trackDisabled {
 					t.track = trackCurrent

src/tui/dummy.go

@@ -46,6 +46,7 @@ func (r *FullscreenRenderer) NeedScrollbarRedraw() bool          { return false
 func (r *FullscreenRenderer) ShouldEmitResizeEvent() bool        { return false }
 func (r *FullscreenRenderer) Bell()                              {}
 func (r *FullscreenRenderer) HideCursor()                        {}
+func (r *FullscreenRenderer) ShowCursor()                        {}
 func (r *FullscreenRenderer) Refresh()                           {}
 func (r *FullscreenRenderer) Close()                             {}
 func (r *FullscreenRenderer) Size() TermSize                     { return TermSize{} }

src/tui/light.go

@@ -1228,4 +1228,10 @@ func (w *LightWindow) EraseMaybe() bool {
 
 func (r *LightRenderer) HideCursor() {
 	r.showCursor = false
+	r.csi("?25l")
+}
+
+func (r *LightRenderer) ShowCursor() {
+	r.showCursor = true
+	r.csi("?25h")
 }

src/tui/tcell.go

@@ -111,6 +111,10 @@ func (r *FullscreenRenderer) HideCursor() {
 	r.showCursor = false
 }
 
+func (r *FullscreenRenderer) ShowCursor() {
+	r.showCursor = true
+}
+
 func (r *FullscreenRenderer) PassThrough(str string) {
 	// No-op
 	// https://github.com/gdamore/tcell/pull/650#issuecomment-1806442846

src/tui/tui.go

@@ -616,6 +616,7 @@ type Renderer interface {
 	ShouldEmitResizeEvent() bool
 	Bell()
 	HideCursor()
+	ShowCursor()
 
 	GetChar() Event