Support zellij floating pane via --popup (new name for --tmux)

Don't use the `-f` switch of `string split`, because it was added in
fish version 3.2.0.

man/man1/fzf.1

@@ -271,22 +271,23 @@ Adaptive height has the following limitations:
 Minimum height when \fB\-\-height\fR is given in percent (default: 10).
 Ignored when \fB\-\-height\fR is not specified.
 .TP
-.BI "\-\-tmux" "[=[center|top|bottom|left|right][,SIZE[%]][,SIZE[%]]]"
-Start fzf in a tmux popup (default \fBcenter,50%\fR). Requires tmux 3.3 or
-later. This option is ignored if you are not running fzf inside tmux.
+.BI "\-\-popup" "[=[center|top|bottom|left|right][,SIZE[%]][,SIZE[%]]]"
+Start fzf in a tmux popup or in a zellij floating pane (default
+\fBcenter,50%\fR). Requires tmux 3.3+ or zellij. This option is ignored if you
+are not running fzf inside tmux or zellij.
 
 e.g.
   \fB# Popup in the center with 70% width and height
-  fzf \-\-tmux 70%
+  fzf \-\-popup 70%
 
   # Popup on the left with 40% width and 100% height
-  fzf \-\-tmux right,40%
+  fzf \-\-popup right,40%
 
   # Popup on the bottom with 100% width and 30% height
-  fzf \-\-tmux bottom,30%
+  fzf \-\-popup bottom,30%
 
   # Popup on the top with 80% width and 40% height
-  fzf \-\-tmux top,80%,40%\fR
+  fzf \-\-popup top,80%,40%\fR
 
 .TP
 .BI "\-\-layout=" "LAYOUT"
@@ -1506,10 +1507,11 @@ A key or an event can be bound to one or more of the following actions.
     \fBshow\-preview\fR
     \fBtoggle\fR                       (\fIright\-click\fR)
     \fBtoggle\-all\fR                   (toggle all matches)
-    \fBtoggle+down\fR                  \fIctrl\-i  (tab)\fR
-    \fBtoggle\-header\fR
     \fBtoggle\-in\fR                    (\fB\-\-layout=reverse*\fR ? \fBtoggle+up\fR : \fBtoggle+down\fR)
     \fBtoggle\-out\fR                   (\fB\-\-layout=reverse*\fR ? \fBtoggle+down\fR : \fBtoggle+up\fR)
+    \fBtoggle\-header\fR
+    \fBtoggle\-hscroll\fR
+    \fBtoggle\-multi\-line\fR
     \fBtoggle\-preview\fR
     \fBtoggle\-preview\-wrap\fR
     \fBtoggle\-search\fR                (toggle search functionality)
@@ -1517,6 +1519,7 @@ A key or an event can be bound to one or more of the following actions.
     \fBtoggle\-track\fR                 (toggle global tracking option (\fB\-\-track\fR))
     \fBtoggle\-track\-current\fR         (toggle tracking of the current item)
     \fBtoggle\-wrap\fR                  \fIctrl\-/\fR  \fIalt\-/\fR
+    \fBtoggle+down\fR                  \fIctrl\-i  (tab)\fR
     \fBtoggle+up\fR                    \fIbtab    (shift\-tab)\fR
     \fBtrack\-current\fR                (track the current item; automatically disabled if focus changes)
     \fBtransform(...)\fR               (transform states using the output of an external command)

shell/key-bindings.fish

@@ -57,8 +57,8 @@ function fzf_key_bindings
   function fzf-history-widget -d "Show command history"
     test -n "$FZF_TMUX_HEIGHT"; or set FZF_TMUX_HEIGHT 40%
     begin
-      set -l FISH_MAJOR (string split '.' -- $version)[1]
-      set -l FISH_MINOR (string split '.' -- $version)[2]
+      set -l FISH_MAJOR (string split -- '.' $version)[1]
+      set -l FISH_MINOR (string split -- '.' $version)[2]
 
       # merge history from other sessions before searching
       test -z "$fish_private_mode"; and builtin history merge
@@ -150,17 +150,20 @@ function fzf_key_bindings
     set -l prefix (string match -r -- '^-[^\s=]+=' $commandline)
     set commandline (string replace -- "$prefix" '' $commandline)
 
+    # Enable home directory expansion of leading ~/
+    set commandline (string replace -r -- '^~/' '\$HOME/' $commandline)
+
     # escape special characters, except for the $ sign of valid variable names,
     # so that after eval, the original string is returned, but with the
     # variable names replaced by their values.
     set commandline (string escape -n -- $commandline)
-    set commandline (string replace -r -a '\x5c\$(?=[\w])' '\$' -- $commandline)
+    set commandline (string replace -r -a -- '\x5c\$(?=[\w])' '\$' $commandline)
 
     # eval is used to do shell expansion on paths
     eval set commandline $commandline
 
     # Combine multiple consecutive slashes into one
-    set commandline (string replace -r -a '/+' '/' -- $commandline)
+    set commandline (string replace -r -a -- '/+' '/' $commandline)
 
     if test -z "$commandline"
       # Default to current directory with no --query
@@ -172,12 +175,12 @@ function fzf_key_bindings
       # BUG: on combined expressions, if a left argument is a single `!`, the
       # builtin test command of fish will treat it as the ! operator. To
       # overcome this, have the variable parts on the right.
-      if test "." = "$dir" -a "." != (string sub -l 1 -- $commandline)
+      if test "." = "$dir" -a "./" != (string sub -l 2 -- $commandline)
         # if $dir is "." but commandline is not a relative path, this means no file path found
         set fzf_query $commandline
       else
         # Also remove trailing slash after dir, to "split" input properly
-        set fzf_query (string replace -r "^$dir/?" '' -- $commandline)
+        set fzf_query (string replace -r -- "^$dir/?" '' $commandline)
       end
     end
 
@@ -190,7 +193,7 @@ function fzf_key_bindings
     set dir $argv
 
     # Strip trailing slash, unless $dir is root dir (/)
-    set dir (string replace -r '(?<!^)/$' '' -- $dir)
+    set dir (string replace -r -- '(?<!^)/$' '' $dir)
 
     # Iteratively check if dir exists and strip tail end of path
     while test ! -d "$dir"

src/actiontype_string.go

@@ -59,73 +59,75 @@ func _() {
 	_ = x[actToggleTrackCurrent-48]
 	_ = x[actToggleHeader-49]
 	_ = x[actToggleWrap-50]
-	_ = x[actTrackCurrent-51]
-	_ = x[actUntrackCurrent-52]
-	_ = x[actDown-53]
-	_ = x[actUp-54]
-	_ = x[actPageUp-55]
-	_ = x[actPageDown-56]
-	_ = x[actPosition-57]
-	_ = x[actHalfPageUp-58]
-	_ = x[actHalfPageDown-59]
-	_ = x[actOffsetUp-60]
-	_ = x[actOffsetDown-61]
-	_ = x[actOffsetMiddle-62]
-	_ = x[actJump-63]
-	_ = x[actJumpAccept-64]
-	_ = x[actPrintQuery-65]
-	_ = x[actRefreshPreview-66]
-	_ = x[actReplaceQuery-67]
-	_ = x[actToggleSort-68]
-	_ = x[actShowPreview-69]
-	_ = x[actHidePreview-70]
-	_ = x[actTogglePreview-71]
-	_ = x[actTogglePreviewWrap-72]
-	_ = x[actTransform-73]
-	_ = x[actTransformBorderLabel-74]
-	_ = x[actTransformHeader-75]
-	_ = x[actTransformPreviewLabel-76]
-	_ = x[actTransformPrompt-77]
-	_ = x[actTransformQuery-78]
-	_ = x[actPreview-79]
-	_ = x[actChangePreview-80]
-	_ = x[actChangePreviewWindow-81]
-	_ = x[actPreviewTop-82]
-	_ = x[actPreviewBottom-83]
-	_ = x[actPreviewUp-84]
-	_ = x[actPreviewDown-85]
-	_ = x[actPreviewPageUp-86]
-	_ = x[actPreviewPageDown-87]
-	_ = x[actPreviewHalfPageUp-88]
-	_ = x[actPreviewHalfPageDown-89]
-	_ = x[actPrevHistory-90]
-	_ = x[actPrevSelected-91]
-	_ = x[actPrint-92]
-	_ = x[actPut-93]
-	_ = x[actNextHistory-94]
-	_ = x[actNextSelected-95]
-	_ = x[actExecute-96]
-	_ = x[actExecuteSilent-97]
-	_ = x[actExecuteMulti-98]
-	_ = x[actSigStop-99]
-	_ = x[actFirst-100]
-	_ = x[actLast-101]
-	_ = x[actReload-102]
-	_ = x[actReloadSync-103]
-	_ = x[actDisableSearch-104]
-	_ = x[actEnableSearch-105]
-	_ = x[actSelect-106]
-	_ = x[actDeselect-107]
-	_ = x[actUnbind-108]
-	_ = x[actRebind-109]
-	_ = x[actBecome-110]
-	_ = x[actShowHeader-111]
-	_ = x[actHideHeader-112]
+	_ = x[actToggleMultiLine-51]
+	_ = x[actToggleHscroll-52]
+	_ = x[actTrackCurrent-53]
+	_ = x[actUntrackCurrent-54]
+	_ = x[actDown-55]
+	_ = x[actUp-56]
+	_ = x[actPageUp-57]
+	_ = x[actPageDown-58]
+	_ = x[actPosition-59]
+	_ = x[actHalfPageUp-60]
+	_ = x[actHalfPageDown-61]
+	_ = x[actOffsetUp-62]
+	_ = x[actOffsetDown-63]
+	_ = x[actOffsetMiddle-64]
+	_ = x[actJump-65]
+	_ = x[actJumpAccept-66]
+	_ = x[actPrintQuery-67]
+	_ = x[actRefreshPreview-68]
+	_ = x[actReplaceQuery-69]
+	_ = x[actToggleSort-70]
+	_ = x[actShowPreview-71]
+	_ = x[actHidePreview-72]
+	_ = x[actTogglePreview-73]
+	_ = x[actTogglePreviewWrap-74]
+	_ = x[actTransform-75]
+	_ = x[actTransformBorderLabel-76]
+	_ = x[actTransformHeader-77]
+	_ = x[actTransformPreviewLabel-78]
+	_ = x[actTransformPrompt-79]
+	_ = x[actTransformQuery-80]
+	_ = x[actPreview-81]
+	_ = x[actChangePreview-82]
+	_ = x[actChangePreviewWindow-83]
+	_ = x[actPreviewTop-84]
+	_ = x[actPreviewBottom-85]
+	_ = x[actPreviewUp-86]
+	_ = x[actPreviewDown-87]
+	_ = x[actPreviewPageUp-88]
+	_ = x[actPreviewPageDown-89]
+	_ = x[actPreviewHalfPageUp-90]
+	_ = x[actPreviewHalfPageDown-91]
+	_ = x[actPrevHistory-92]
+	_ = x[actPrevSelected-93]
+	_ = x[actPrint-94]
+	_ = x[actPut-95]
+	_ = x[actNextHistory-96]
+	_ = x[actNextSelected-97]
+	_ = x[actExecute-98]
+	_ = x[actExecuteSilent-99]
+	_ = x[actExecuteMulti-100]
+	_ = x[actSigStop-101]
+	_ = x[actFirst-102]
+	_ = x[actLast-103]
+	_ = x[actReload-104]
+	_ = x[actReloadSync-105]
+	_ = x[actDisableSearch-106]
+	_ = x[actEnableSearch-107]
+	_ = x[actSelect-108]
+	_ = x[actDeselect-109]
+	_ = x[actUnbind-110]
+	_ = x[actRebind-111]
+	_ = x[actBecome-112]
+	_ = x[actShowHeader-113]
+	_ = x[actHideHeader-114]
 }
 
-const _actionType_name = "actIgnoreactStartactClickactInvalidactCharactMouseactBeginningOfLineactAbortactAcceptactAcceptNonEmptyactAcceptOrPrintQueryactBackwardCharactBackwardDeleteCharactBackwardDeleteCharEofactBackwardWordactCancelactChangeBorderLabelactChangeHeaderactChangeMultiactChangePreviewLabelactChangePromptactChangeQueryactClearScreenactClearQueryactClearSelectionactCloseactDeleteCharactDeleteCharEofactEndOfLineactFatalactForwardCharactForwardWordactKillLineactKillWordactUnixLineDiscardactUnixWordRuboutactYankactBackwardKillWordactSelectAllactDeselectAllactToggleactToggleSearchactToggleAllactToggleDownactToggleUpactToggleInactToggleOutactToggleTrackactToggleTrackCurrentactToggleHeaderactToggleWrapactTrackCurrentactUntrackCurrentactDownactUpactPageUpactPageDownactPositionactHalfPageUpactHalfPageDownactOffsetUpactOffsetDownactOffsetMiddleactJumpactJumpAcceptactPrintQueryactRefreshPreviewactReplaceQueryactToggleSortactShowPreviewactHidePreviewactTogglePreviewactTogglePreviewWrapactTransformactTransformBorderLabelactTransformHeaderactTransformPreviewLabelactTransformPromptactTransformQueryactPreviewactChangePreviewactChangePreviewWindowactPreviewTopactPreviewBottomactPreviewUpactPreviewDownactPreviewPageUpactPreviewPageDownactPreviewHalfPageUpactPreviewHalfPageDownactPrevHistoryactPrevSelectedactPrintactPutactNextHistoryactNextSelectedactExecuteactExecuteSilentactExecuteMultiactSigStopactFirstactLastactReloadactReloadSyncactDisableSearchactEnableSearchactSelectactDeselectactUnbindactRebindactBecomeactShowHeaderactHideHeader"
+const _actionType_name = "actIgnoreactStartactClickactInvalidactCharactMouseactBeginningOfLineactAbortactAcceptactAcceptNonEmptyactAcceptOrPrintQueryactBackwardCharactBackwardDeleteCharactBackwardDeleteCharEofactBackwardWordactCancelactChangeBorderLabelactChangeHeaderactChangeMultiactChangePreviewLabelactChangePromptactChangeQueryactClearScreenactClearQueryactClearSelectionactCloseactDeleteCharactDeleteCharEofactEndOfLineactFatalactForwardCharactForwardWordactKillLineactKillWordactUnixLineDiscardactUnixWordRuboutactYankactBackwardKillWordactSelectAllactDeselectAllactToggleactToggleSearchactToggleAllactToggleDownactToggleUpactToggleInactToggleOutactToggleTrackactToggleTrackCurrentactToggleHeaderactToggleWrapactToggleMultiLineactToggleHscrollactTrackCurrentactUntrackCurrentactDownactUpactPageUpactPageDownactPositionactHalfPageUpactHalfPageDownactOffsetUpactOffsetDownactOffsetMiddleactJumpactJumpAcceptactPrintQueryactRefreshPreviewactReplaceQueryactToggleSortactShowPreviewactHidePreviewactTogglePreviewactTogglePreviewWrapactTransformactTransformBorderLabelactTransformHeaderactTransformPreviewLabelactTransformPromptactTransformQueryactPreviewactChangePreviewactChangePreviewWindowactPreviewTopactPreviewBottomactPreviewUpactPreviewDownactPreviewPageUpactPreviewPageDownactPreviewHalfPageUpactPreviewHalfPageDownactPrevHistoryactPrevSelectedactPrintactPutactNextHistoryactNextSelectedactExecuteactExecuteSilentactExecuteMultiactSigStopactFirstactLastactReloadactReloadSyncactDisableSearchactEnableSearchactSelectactDeselectactUnbindactRebindactBecomeactShowHeaderactHideHeader"
 
-var _actionType_index = [...]uint16{0, 9, 17, 25, 35, 42, 50, 68, 76, 85, 102, 123, 138, 159, 183, 198, 207, 227, 242, 256, 277, 292, 306, 320, 333, 350, 358, 371, 387, 399, 407, 421, 435, 446, 457, 475, 492, 499, 518, 530, 544, 553, 568, 580, 593, 604, 615, 627, 641, 662, 677, 690, 705, 722, 729, 734, 743, 754, 765, 778, 793, 804, 817, 832, 839, 852, 865, 882, 897, 910, 924, 938, 954, 974, 986, 1009, 1027, 1051, 1069, 1086, 1096, 1112, 1134, 1147, 1163, 1175, 1189, 1205, 1223, 1243, 1265, 1279, 1294, 1302, 1308, 1322, 1337, 1347, 1363, 1378, 1388, 1396, 1403, 1412, 1425, 1441, 1456, 1465, 1476, 1485, 1494, 1503, 1516, 1529}
+var _actionType_index = [...]uint16{0, 9, 17, 25, 35, 42, 50, 68, 76, 85, 102, 123, 138, 159, 183, 198, 207, 227, 242, 256, 277, 292, 306, 320, 333, 350, 358, 371, 387, 399, 407, 421, 435, 446, 457, 475, 492, 499, 518, 530, 544, 553, 568, 580, 593, 604, 615, 627, 641, 662, 677, 690, 708, 724, 739, 756, 763, 768, 777, 788, 799, 812, 827, 838, 851, 866, 873, 886, 899, 916, 931, 944, 958, 972, 988, 1008, 1020, 1043, 1061, 1085, 1103, 1120, 1130, 1146, 1168, 1181, 1197, 1209, 1223, 1239, 1257, 1277, 1299, 1313, 1328, 1336, 1342, 1356, 1371, 1381, 1397, 1412, 1422, 1430, 1437, 1446, 1459, 1475, 1490, 1499, 1510, 1519, 1528, 1537, 1550, 1563}
 
 func (i actionType) String() string {
 	if i < 0 || i >= actionType(len(_actionType_index)-1) {

src/core.go

@@ -39,8 +39,13 @@ func (r revision) compatible(other revision) bool {
 // Run starts fzf
 func Run(opts *Options) (int, error) {
 	if opts.Filter == nil {
-		if opts.Tmux != nil && len(os.Getenv("TMUX")) > 0 && opts.Tmux.index >= opts.Height.index {
-			return runTmux(os.Args, opts)
+		if opts.Tmux != nil && opts.Tmux.index >= opts.Height.index {
+			if len(os.Getenv("TMUX")) > 0 {
+				return runTmux(os.Args, opts)
+			}
+			if len(os.Getenv("ZELLIJ")) > 0 {
+				return runZellij(os.Args, opts)
+			}
 		}
 
 		if needWinpty(opts) {

src/options.go

@@ -75,7 +75,7 @@ Usage: fzf [options]
                             according to the input size.
     --min-height=HEIGHT     Minimum height when --height is given in percent
                             (default: 10)
-    --tmux[=OPTS]           Start fzf in a tmux popup (requires tmux 3.3+)
+    --popup[=OPTS]          Start fzf in a popup (requires tmux 3.3+ or zellij)
                             [center|top|bottom|left|right][,SIZE[%]][,SIZE[%]]
                             (default: center,50%)
     --layout=LAYOUT         Choose layout: [default|reverse|reverse-list]
@@ -299,7 +299,7 @@ func parseTmuxOptions(arg string, index int) (*tmuxOptions, error) {
 	var err error
 	opts := defaultTmuxOptions(index)
 	tokens := splitRegexp.Split(arg, -1)
-	errorToReturn := errors.New("invalid tmux option: " + arg + " (expected: [center|top|bottom|left|right][,SIZE[%]][,SIZE[%]])")
+	errorToReturn := errors.New("invalid popup option: " + arg + " (expected: [center|top|bottom|left|right][,SIZE[%]][,SIZE[%]])")
 	if len(tokens) == 0 || len(tokens) > 3 {
 		return nil, errorToReturn
 	}
@@ -1431,6 +1431,10 @@ func parseActionList(masked string, original string, prevActions []*action, putA
 			appendAction(actToggleHeader)
 		case "toggle-wrap":
 			appendAction(actToggleWrap)
+		case "toggle-multi-line":
+			appendAction(actToggleMultiLine)
+		case "toggle-hscroll":
+			appendAction(actToggleHscroll)
 		case "show-header":
 			appendAction(actShowHeader)
 		case "hide-header":
@@ -2027,7 +2031,7 @@ func parseOptions(index *int, opts *Options, allArgs []string) error {
 			opts.Version = true
 		case "--no-winpty":
 			opts.NoWinpty = true
-		case "--tmux":
+		case "--tmux", "--popup":
 			given, str := optionalNextString(allArgs, &i)
 			if given {
 				if opts.Tmux, err = parseTmuxOptions(str, index); err != nil {
@@ -2036,7 +2040,7 @@ func parseOptions(index *int, opts *Options, allArgs []string) error {
 			} else {
 				opts.Tmux = defaultTmuxOptions(index)
 			}
-		case "--no-tmux":
+		case "--no-tmux", "--no-popup":
 			opts.Tmux = nil
 		case "--force-tty-in":
 			// NOTE: We need this because `system('fzf --tmux < /dev/tty')` doesn't
@@ -2573,6 +2577,10 @@ func parseOptions(index *int, opts *Options, allArgs []string) error {
 				if opts.FuzzyAlgo, err = parseAlgo(value); err != nil {
 					return err
 				}
+			} else if match, value := optString(arg, "--popup="); match {
+				if opts.Tmux, err = parseTmuxOptions(value, index); err != nil {
+					return err
+				}
 			} else if match, value := optString(arg, "--tmux="); match {
 				if opts.Tmux, err = parseTmuxOptions(value, index); err != nil {
 					return err

src/terminal.go

@@ -463,6 +463,8 @@ const (
 	actToggleTrackCurrent
 	actToggleHeader
 	actToggleWrap
+	actToggleMultiLine
+	actToggleHscroll
 	actTrackCurrent
 	actUntrackCurrent
 	actDown
@@ -1537,7 +1539,7 @@ func (t *Terminal) resizeWindows(forcePreview bool, redrawBorder bool) {
 	width := screenWidth - marginInt[1] - marginInt[3]
 	height := screenHeight - marginInt[0] - marginInt[2]
 
-	t.prevLines = make([]itemLine, screenHeight)
+	t.prevLines = make([]itemLine, util.Max(1, screenHeight))
 	if t.border != nil && redrawBorder {
 		t.border = nil
 	}
@@ -4639,6 +4641,14 @@ func (t *Terminal) Loop() error {
 			case actToggleWrap:
 				t.wrap = !t.wrap
 				req(reqList, reqHeader)
+			case actToggleMultiLine:
+				t.multiLine = !t.multiLine
+				req(reqList)
+			case actToggleHscroll:
+				// Force re-rendering of the list
+				t.prevLines = make([]itemLine, len(t.prevLines))
+				t.hscroll = !t.hscroll
+				req(reqList)
 			case actTrackCurrent:
 				if t.track == trackDisabled {
 					t.track = trackCurrent

src/tmux.go

@@ -18,7 +18,7 @@ func runTmux(args []string, opts *Options) (int, error) {
 	for _, arg := range args {
 		argStr += " " + escapeSingleQuote(arg)
 	}
-	argStr += ` --no-tmux --no-height`
+	argStr += ` --no-popup --no-height`
 
 	// Get current directory
 	dir, err := os.Getwd()

src/zellij.go

@@ -0,0 +1,103 @@
+package fzf
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"strconv"
+
+	"github.com/junegunn/fzf/src/tui"
+)
+
+func runZellij(args []string, opts *Options) (int, error) {
+	// Prepare arguments
+	fzf := args[0]
+	args = append([]string{"--bind=ctrl-z:ignore"}, args[1:]...)
+	if opts.BorderShape == tui.BorderUndefined {
+		args = append(args, "--no-border")
+	}
+	argStr := escapeSingleQuote(fzf)
+	for _, arg := range args {
+		argStr += " " + escapeSingleQuote(arg)
+	}
+	argStr += ` --no-popup --no-height`
+
+	// Get current directory
+	dir, err := os.Getwd()
+	if err != nil {
+		dir = "."
+	}
+
+	sh, err := sh(false)
+	if err != nil {
+		return ExitError, err
+	}
+
+	fifo, err := fifo("zellij-fifo")
+	if err != nil {
+		return ExitError, err
+	}
+
+	zopts := " --width " + opts.Tmux.width.String() + " --height " + opts.Tmux.height.String()
+	centerX := func() {
+		// TODO: Handle non-percent values
+		if opts.Tmux.width.percent {
+			x := (100.0 - opts.Tmux.width.size) / 2
+			if x <= 0 {
+				zopts += " -x0"
+			} else {
+				zopts += fmt.Sprintf(" -x%d%%", int(x))
+			}
+		} else if cols := os.Getenv("COLUMNS"); len(cols) > 0 {
+			if w, e := strconv.Atoi(cols); e == nil {
+				x := (float64(w) - opts.Tmux.width.size) / 2
+				zopts += fmt.Sprintf(" -x%d", int(x))
+			}
+		}
+
+	}
+	centerY := func() {
+		if opts.Tmux.height.percent {
+			y := (100.0 - opts.Tmux.height.size) / 2
+			if y <= 0 {
+				zopts += " -y0"
+			} else {
+				zopts += fmt.Sprintf(" -y%d%%", int(y))
+			}
+		} else if lines := os.Getenv("LINES"); len(lines) > 0 {
+			if h, e := strconv.Atoi(lines); e == nil {
+				y := (float64(h) - opts.Tmux.height.size) / 2
+				zopts += fmt.Sprintf(" -y%d", int(y))
+			}
+		}
+	}
+	switch opts.Tmux.position {
+	case posUp:
+		zopts += " -y0"
+		centerX()
+	case posDown:
+		zopts += " -y9999"
+		centerX()
+	case posLeft:
+		zopts += " -x0"
+		centerY()
+	case posRight:
+		zopts += " -x9999"
+		centerY()
+	case posCenter:
+		centerX()
+		centerY()
+	}
+
+	lines := []string{
+		"#!/bin/sh",
+		fmt.Sprintf(`zellij run --name '' --floating --close-on-exit --cwd %s %s -- %s -c "%s $1; echo \$? > %s" || exit $?`, dir, zopts, sh, sh, fifo),
+		fmt.Sprintf(`exit $(cat %s)`, fifo),
+	}
+	temptemp := WriteTemporaryFile(lines, "\n")
+	defer os.Remove(temptemp)
+
+	return runProxy(argStr, func(temp string, needBash bool) (*exec.Cmd, error) {
+		return exec.Command(sh, temptemp, temp), nil
+	}, opts, true)
+}

test/test_go.rb

@@ -1442,10 +1442,14 @@ class TestGoFZF < TestBase
     writelines(['=' * 10_000 + '0123456789'])
     [0, 3, 6].each do |off|
       tmux.prepare
-      tmux.send_keys "#{FZF} --hscroll-off=#{off} -q 0 < #{tempname}", :Enter
+      tmux.send_keys "#{FZF} --hscroll-off=#{off} -q 0 --bind space:toggle-hscroll < #{tempname}", :Enter
       tmux.until { |lines| assert lines[-3]&.end_with?((0..off).to_a.join + '··') }
       tmux.send_keys '9'
       tmux.until { |lines| assert lines[-3]&.end_with?('789') }
+      tmux.send_keys :Space
+      tmux.until { |lines| assert lines[-3]&.end_with?('=··') }
+      tmux.send_keys :Space
+      tmux.until { |lines| assert lines[-3]&.end_with?('789') }
       tmux.send_keys :Enter
     end
   end
@@ -2133,7 +2137,11 @@ class TestGoFZF < TestBase
   end
 
   def test_keep_right
-    tmux.send_keys "seq 10000 | #{FZF} --read0 --keep-right --no-multi-line", :Enter
+    tmux.send_keys "seq 10000 | #{FZF} --read0 --keep-right --no-multi-line --bind space:toggle-multi-line", :Enter
+    tmux.until { |lines| assert lines.any_include?('9999␊10000') }
+    tmux.send_keys :Space
+    tmux.until { |lines| assert lines.any_include?('> 1') }
+    tmux.send_keys :Space
     tmux.until { |lines| assert lines.any_include?('9999␊10000') }
   end