gesture: [API] rename ClickType to ClickKind

"Kind" is the Go idiomatic name for distinguishing structs outside of
the type system.

Signed-off-by: Elias Naur <[email protected]>

Author: eliasnaur

gesture/gesture.go

@@ -87,10 +87,10 @@ type Click struct {
 }
 
 // ClickEvent represent a click action, either a
-// TypePress for the beginning of a click or a
-// TypeClick for a completed click.
+// KindPress for the beginning of a click or a
+// KindClick for a completed click.
 type ClickEvent struct {
-	Type      ClickType
+	Kind      ClickKind
 	Position  image.Point
 	Source    pointer.Source
 	Modifiers key.Modifiers
@@ -99,7 +99,7 @@ type ClickEvent struct {
 	NumClicks int
 }
 
-type ClickType uint8
+type ClickKind uint8
 
 // Drag detects drag gestures in the form of pointer.Drag events.
 type Drag struct {
@@ -136,15 +136,15 @@ const (
 )
 
 const (
-	// TypePress is reported for the first pointer
+	// KindPress is reported for the first pointer
 	// press.
-	TypePress ClickType = iota
-	// TypeClick is reported when a click action
+	KindPress ClickKind = iota
+	// KindClick is reported when a click action
 	// is complete.
-	TypeClick
-	// TypeCancel is reported when the gesture is
+	KindClick
+	// KindCancel is reported when the gesture is
 	// cancelled.
-	TypeCancel
+	KindCancel
 )
 
 const (
@@ -192,17 +192,17 @@ func (c *Click) Events(q event.Queue) []ClickEvent {
 			}
 			c.pressed = false
 			if !c.entered || c.hovered {
-				events = append(events, ClickEvent{Type: TypeClick, Position: e.Position.Round(), Source: e.Source, Modifiers: e.Modifiers, NumClicks: c.clicks})
+				events = append(events, ClickEvent{Kind: KindClick, Position: e.Position.Round(), Source: e.Source, Modifiers: e.Modifiers, NumClicks: c.clicks})
 			} else {
-				events = append(events, ClickEvent{Type: TypeCancel})
+				events = append(events, ClickEvent{Kind: KindCancel})
 			}
 		case pointer.Cancel:
 			wasPressed := c.pressed
 			c.pressed = false
 			c.hovered = false
 			c.entered = false
 			if wasPressed {
-				events = append(events, ClickEvent{Type: TypeCancel})
+				events = append(events, ClickEvent{Kind: KindCancel})
 			}
 		case pointer.Press:
 			if c.pressed {
@@ -224,7 +224,7 @@ func (c *Click) Events(q event.Queue) []ClickEvent {
 				c.clicks = 1
 			}
 			c.clickedAt = e.Time
-			events = append(events, ClickEvent{Type: TypePress, Position: e.Position.Round(), Source: e.Source, Modifiers: e.Modifiers, NumClicks: c.clicks})
+			events = append(events, ClickEvent{Kind: KindPress, Position: e.Position.Round(), Source: e.Source, Modifiers: e.Modifiers, NumClicks: c.clicks})
 		case pointer.Leave:
 			if !c.pressed {
 				c.pid = e.PointerID
@@ -444,13 +444,13 @@ func (a Axis) String() string {
 	}
 }
 
-func (ct ClickType) String() string {
+func (ct ClickKind) String() string {
 	switch ct {
-	case TypePress:
+	case KindPress:
 		return "TypePress"
-	case TypeClick:
+	case KindClick:
 		return "TypeClick"
-	case TypeCancel:
+	case KindCancel:
 		return "TypeCancel"
 	default:
 		panic("invalid ClickType")

gesture/gesture_test.go

@@ -110,7 +110,7 @@ func mouseClickEvents(times ...time.Duration) []event.Event {
 func filterMouseClicks(events []ClickEvent) []ClickEvent {
 	var clicks []ClickEvent
 	for _, ev := range events {
-		if ev.Type == TypeClick {
+		if ev.Kind == KindClick {
 			clicks = append(clicks, ev)
 		}
 	}

widget/button.go

@@ -149,23 +149,23 @@ func (b *Clickable) update(gtx layout.Context) {
 	b.prevClicks = n
 
 	for _, e := range b.click.Events(gtx) {
-		switch e.Type {
-		case gesture.TypeClick:
+		switch e.Kind {
+		case gesture.KindClick:
 			b.clicks = append(b.clicks, Click{
 				Modifiers: e.Modifiers,
 				NumClicks: e.NumClicks,
 			})
 			if l := len(b.history); l > 0 {
 				b.history[l-1].End = gtx.Now
 			}
-		case gesture.TypeCancel:
+		case gesture.KindCancel:
 			for i := range b.history {
 				b.history[i].Cancelled = true
 				if b.history[i].End.IsZero() {
 					b.history[i].End = gtx.Now
 				}
 			}
-		case gesture.TypePress:
+		case gesture.KindPress:
 			if e.Source == pointer.Mouse {
 				key.FocusOp{Tag: &b.keyTag}.Add(gtx.Ops)
 			}

widget/editor.go

@@ -238,8 +238,8 @@ func (e *Editor) processPointer(gtx layout.Context) {
 		switch evt := evt.(type) {
 		case gesture.ClickEvent:
 			switch {
-			case evt.Type == gesture.TypePress && evt.Source == pointer.Mouse,
-				evt.Type == gesture.TypeClick && evt.Source != pointer.Mouse:
+			case evt.Kind == gesture.KindPress && evt.Source == pointer.Mouse,
+				evt.Kind == gesture.KindClick && evt.Source != pointer.Mouse:
 				prevCaretPos, _ := e.text.Selection()
 				e.blinkStart = gtx.Now
 				e.text.MoveCoord(image.Point{

widget/enum.go

@@ -74,12 +74,12 @@ func (e *Enum) Layout(gtx layout.Context, k string, content layout.Widget) layou
 	}
 	clk := &state.click
 	for _, ev := range clk.Events(gtx) {
-		switch ev.Type {
-		case gesture.TypePress:
+		switch ev.Kind {
+		case gesture.KindPress:
 			if ev.Source == pointer.Mouse {
 				key.FocusOp{Tag: &state.tag}.Add(gtx.Ops)
 			}
-		case gesture.TypeClick:
+		case gesture.KindClick:
 			if state.key != e.Value {
 				e.Value = state.key
 				e.changed = true

widget/list.go

@@ -62,7 +62,7 @@ func (s *Scrollbar) Layout(gtx layout.Context, axis layout.Axis, viewportStart,
 
 	// Jump to a click in the track.
 	for _, event := range s.track.Events(gtx) {
-		if event.Type != gesture.TypeClick ||
+		if event.Kind != gesture.KindClick ||
 			event.Modifiers != key.Modifiers(0) ||
 			event.NumClicks > 1 {
 			continue

widget/selectable.go

@@ -236,8 +236,8 @@ func (e *Selectable) processPointer(gtx layout.Context) {
 		switch evt := evt.(type) {
 		case gesture.ClickEvent:
 			switch {
-			case evt.Type == gesture.TypePress && evt.Source == pointer.Mouse,
-				evt.Type == gesture.TypeClick && evt.Source != pointer.Mouse:
+			case evt.Kind == gesture.KindPress && evt.Source == pointer.Mouse,
+				evt.Kind == gesture.KindClick && evt.Source != pointer.Mouse:
 				prevCaretPos, _ := e.text.Selection()
 				e.text.MoveCoord(image.Point{
 					X: int(math.Round(float64(evt.Position.X))),