bump gocui

3 files changed, 49 insertions, 10 deletions

diff --git a/vendor/github.com/jesseduffield/gocui/edit.go b/vendor/github.com/jesseduffield/gocui/edit.go
index f548ebd76..a47f45c9d 100644
--- a/vendor/github.com/jesseduffield/gocui/edit.go
+++ b/vendor/github.com/jesseduffield/gocui/edit.go
@@ -356,17 +356,18 @@ func (v *View) writeRune(x, y int, ch rune) error {
 	}
 
 	olen := len(v.lines[y])
+	w := runewidth.RuneWidth(ch)
 
 	var s []cell
 	if x >= len(v.lines[y]) {
-		s = make([]cell, x-len(v.lines[y])+1)
+		s = make([]cell, x-len(v.lines[y])+w)
 	} else if !v.Overwrite {
-		s = make([]cell, 1)
+		s = make([]cell, w)
 	}
 	v.lines[y] = append(v.lines[y], s...)
 
-	if !v.Overwrite || (v.Overwrite && x >= olen-1) {
-		copy(v.lines[y][x+1:], v.lines[y][x:])
+	if !v.Overwrite || (v.Overwrite && x >= olen-w) {
+		copy(v.lines[y][x+w:], v.lines[y][x:])
 	}
 	v.lines[y][x] = cell{
 		fgColor: v.FgColor,
@@ -374,6 +375,14 @@ func (v *View) writeRune(x, y int, ch rune) error {
 		chr:     ch,
 	}
 
+	for i := 1; i < w; i++ {
+		v.lines[y][x+i] = cell{
+			fgColor: v.FgColor,
+			bgColor: v.BgColor,
+			chr:     '\x00',
+		}
+	}
+
 	return nil
 }
 
@@ -400,7 +409,7 @@ func (v *View) deleteRune(x, y int) (int, error) {
 		w := runewidth.RuneWidth(v.lines[y][i].chr)
 		tw += w
 		if tw > x {
-			v.lines[y] = append(v.lines[y][:i], v.lines[y][i+1:]...)
+			v.lines[y] = append(v.lines[y][:i], v.lines[y][i+w:]...)
 			return w, nil
 		}
 
diff --git a/vendor/github.com/jesseduffield/gocui/keybinding.go b/vendor/github.com/jesseduffield/gocui/keybinding.go
index 00bdcd0bf..f9df6993b 100644
--- a/vendor/github.com/jesseduffield/gocui/keybinding.go
+++ b/vendor/github.com/jesseduffield/gocui/keybinding.go
@@ -317,8 +317,9 @@ const (
 
 // Modifiers.
 const (
-	ModNone Modifier = Modifier(0)
-	ModAlt           = Modifier(tcell.ModAlt)
+	ModNone   Modifier = Modifier(0)
+	ModAlt             = Modifier(tcell.ModAlt)
+	ModMotion          = Modifier(2) // just picking an arbitrary number here that doesn't clash with tcell.ModAlt
 	// ModCtrl doesn't work with keyboard keys. Use CtrlKey in Key and ModNone. This is was for mouse clicks only (tcell.v1)
 	// ModCtrl = Modifier(tcell.ModCtrl)
 )
diff --git a/vendor/github.com/jesseduffield/gocui/tcell_driver.go b/vendor/github.com/jesseduffield/gocui/tcell_driver.go
index 2ede319a3..c7e313716 100644
--- a/vendor/github.com/jesseduffield/gocui/tcell_driver.go
+++ b/vendor/github.com/jesseduffield/gocui/tcell_driver.go
@@ -104,9 +104,18 @@ const (
 	eventRaw
 )
 
+const (
+	NOT_DRAGGING int = iota
+	MAYBE_DRAGGING
+	DRAGGING
+)
+
 var (
 	lastMouseKey tcell.ButtonMask = tcell.ButtonNone
 	lastMouseMod tcell.ModMask    = tcell.ModNone
+	dragState    int              = NOT_DRAGGING
+	lastX        int              = 0
+	lastY        int              = 0
 )
 
 // pollEvent get tcell.Event and transform it into gocuiEvent
@@ -172,6 +181,17 @@ func pollEvent() GocuiEvent {
 		if button != tcell.ButtonNone && lastMouseKey == tcell.ButtonNone {
 			lastMouseKey = button
 			lastMouseMod = tev.Modifiers()
+			switch button {
+			case tcell.ButtonPrimary:
+				mouseKey = MouseLeft
+				dragState = MAYBE_DRAGGING
+				lastX = x
+				lastY = y
+			case tcell.ButtonSecondary:
+				mouseKey = MouseRight
+			case tcell.ButtonMiddle:
+				mouseKey = MouseMiddle
+			}
 		}
 
 		switch tev.Buttons() {
@@ -179,11 +199,9 @@ func pollEvent() GocuiEvent {
 			if lastMouseKey != tcell.ButtonNone {
 				switch lastMouseKey {
 				case tcell.ButtonPrimary:
-					mouseKey = MouseLeft
+					dragState = NOT_DRAGGING
 				case tcell.ButtonSecondary:
-					mouseKey = MouseRight
 				case tcell.ButtonMiddle:
-					mouseKey = MouseMiddle
 				}
 				mouseMod = Modifier(lastMouseMod)
 				lastMouseMod = tcell.ModNone
@@ -191,6 +209,17 @@ func pollEvent() GocuiEvent {
 			}
 		}
 
+		switch dragState {
+		// if we haven't released the left mouse button and we've moved the cursor then we're dragging
+		case MAYBE_DRAGGING:
+			if x != lastX || y != lastY {
+				dragState = DRAGGING
+			}
+		case DRAGGING:
+			mouseMod = ModMotion
+			mouseKey = MouseLeft
+		}
+
 		return GocuiEvent{
 			Type:   eventMouse,
 			MouseX: x,