Add --inline-info option

Close #202

man/man1/fzf.1

@@ -116,6 +116,9 @@ Reverse orientation
 .B "--no-hscroll"
 Disable horizontal scroll
 .TP
+.B "--inline-info"
+Display finder info inline with the query
+.TP
 .BI "--prompt=" "STR"
 Input prompt (default: '> ')
 .SS Scripting

src/options.go

@@ -40,6 +40,7 @@ const usage = `usage: fzf [options]
         --black           Use black background
         --reverse         Reverse orientation
         --no-hscroll      Disable horizontal scroll
+        --inline-info     Display finder info inline with the query
         --prompt=STR      Input prompt (default: '> ')
 
   Scripting
@@ -105,6 +106,7 @@ type Options struct {
 	Black      bool
 	Reverse    bool
 	Hscroll    bool
+	InlineInfo bool
 	Prompt     string
 	Query      string
 	Select1    bool
@@ -141,6 +143,7 @@ func defaultOptions() *Options {
 		Black:      false,
 		Reverse:    false,
 		Hscroll:    true,
+		InlineInfo: false,
 		Prompt:     "> ",
 		Query:      "",
 		Select1:    false,
@@ -364,6 +367,10 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Hscroll = true
 		case "--no-hscroll":
 			opts.Hscroll = false
+		case "--inline-info":
+			opts.InlineInfo = true
+		case "--no-inline-info":
+			opts.InlineInfo = false
 		case "-1", "--select-1":
 			opts.Select1 = true
 		case "+1", "--no-select-1":

src/terminal.go

@@ -20,6 +20,7 @@ import (
 
 // Terminal represents terminal input/output
 type Terminal struct {
+	inlineInfo bool
 	prompt     string
 	reverse    bool
 	hscroll    bool
@@ -83,6 +84,7 @@ const (
 func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 	input := []rune(opts.Query)
 	return &Terminal{
+		inlineInfo: opts.InlineInfo,
 		prompt:     opts.Prompt,
 		reverse:    opts.Reverse,
 		hscroll:    opts.Hscroll,
@@ -229,14 +231,23 @@ func (t *Terminal) printPrompt() {
 }
 
 func (t *Terminal) printInfo() {
-	t.move(1, 0, true)
-	if t.reading {
-		duration := int64(spinnerDuration)
-		idx := (time.Now().UnixNano() % (duration * int64(len(_spinner)))) / duration
-		C.CPrint(C.ColSpinner, true, _spinner[idx])
+	if t.inlineInfo {
+		t.move(0, len(t.prompt)+displayWidth(t.input)+1, true)
+		if t.reading {
+			C.CPrint(C.ColSpinner, true, " < ")
+		} else {
+			C.CPrint(C.ColPrompt, true, " < ")
+		}
+	} else {
+		t.move(1, 0, true)
+		if t.reading {
+			duration := int64(spinnerDuration)
+			idx := (time.Now().UnixNano() % (duration * int64(len(_spinner)))) / duration
+			C.CPrint(C.ColSpinner, true, _spinner[idx])
+		}
+		t.move(1, 2, false)
 	}
 
-	t.move(1, 2, false)
 	output := fmt.Sprintf("%d/%d", t.merger.Length(), t.count)
 	if t.toggleSort > 0 {
 		if t.sort {
@@ -257,10 +268,16 @@ func (t *Terminal) printInfo() {
 func (t *Terminal) printList() {
 	t.constrain()
 
-	maxy := maxItems()
+	maxy := t.maxItems()
 	count := t.merger.Length() - t.offset
 	for i := 0; i < maxy; i++ {
-		t.move(i+2, 0, true)
+		var line int
+		if t.inlineInfo {
+			line = i + 1
+		} else {
+			line = i + 2
+		}
+		t.move(line, 0, true)
 		if i < count {
 			t.printItem(t.merger.Get(i+t.offset), i == t.cy-t.offset)
 		}
@@ -515,6 +532,9 @@ func (t *Terminal) Loop() {
 					switch req {
 					case reqPrompt:
 						t.printPrompt()
+						if t.inlineInfo {
+							t.printInfo()
+						}
 					case reqInfo:
 						t.printInfo()
 					case reqList:
@@ -659,10 +679,10 @@ func (t *Terminal) Loop() {
 		case C.Del:
 			t.delChar()
 		case C.PgUp:
-			t.vmove(maxItems() - 1)
+			t.vmove(t.maxItems() - 1)
 			req(reqList)
 		case C.PgDn:
-			t.vmove(-(maxItems() - 1))
+			t.vmove(-(t.maxItems() - 1))
 			req(reqList)
 		case C.AltB:
 			t.cx = findLastMatch("[^[:alnum:]][[:alnum:]]", string(t.input[:t.cx])) + 1
@@ -685,6 +705,10 @@ func (t *Terminal) Loop() {
 			if !t.reverse {
 				my = C.MaxY() - my - 1
 			}
+			min := 2
+			if t.inlineInfo {
+				min = 1
+			}
 			if me.S != 0 {
 				// Scroll
 				if t.merger.Length() > 0 {
@@ -696,8 +720,8 @@ func (t *Terminal) Loop() {
 				}
 			} else if me.Double {
 				// Double-click
-				if my >= 2 {
-					if t.vset(t.offset+my-2) && t.cy < t.merger.Length() {
+				if my >= min {
+					if t.vset(t.offset+my-min) && t.cy < t.merger.Length() {
 						req(reqClose)
 					}
 				}
@@ -705,9 +729,9 @@ func (t *Terminal) Loop() {
 				if my == 0 && mx >= 0 {
 					// Prompt
 					t.cx = mx
-				} else if my >= 2 {
+				} else if my >= min {
 					// List
-					if t.vset(t.offset+my-2) && t.multi && me.Mod {
+					if t.vset(t.offset+my-min) && t.multi && me.Mod {
 						toggle()
 					}
 					req(reqList)
@@ -728,7 +752,7 @@ func (t *Terminal) Loop() {
 
 func (t *Terminal) constrain() {
 	count := t.merger.Length()
-	height := C.MaxY() - 2
+	height := t.maxItems()
 	diffpos := t.cy - t.offset
 
 	t.cy = util.Constrain(t.cy, 0, count-1)
@@ -761,6 +785,10 @@ func (t *Terminal) vset(o int) bool {
 	return t.cy == o
 }
 
-func maxItems() int {
-	return C.MaxY() - 2
+func (t *Terminal) maxItems() int {
+	if t.inlineInfo {
+		return C.MaxY() - 1
+	} else {
+		return C.MaxY() - 2
+	}
 }