Double click interval

application.go

@@ -2,6 +2,7 @@ package tview
 
 import (
 	"sync"
+	"time"
 
 	"github.com/gdamore/tcell"
 )
@@ -77,6 +78,7 @@ type Application struct {
 	lastMouseX, lastMouseY int // track last mouse pos
 	mouseDownX, mouseDownY int // track last mouse down pos
 	lastMouseAct           MouseAction
+	lastClickTime          time.Time
 	lastMouseBtn           tcell.ButtonMask
 }
 
@@ -254,7 +256,6 @@ EventLoop:
 			p := a.focus
 			inputCapture := a.inputCapture
 			mouseCapture := a.mouseCapture
-			mouseHandlerCapture := a.mouseHandlerCapture
 			screen := a.screen
 			root := a.root
 			a.RUnlock()
@@ -303,7 +304,7 @@ EventLoop:
 				}
 				action = action.getMouseButtonAction(a.lastMouseBtn, btn)
 				if atX == int(a.mouseDownX) && atY == int(a.mouseDownY) {
-					action = action.getMouseClickAction(a.lastMouseAct)
+					action = action.getMouseClickAction(a.lastMouseAct, &a.lastClickTime)
 				}
 				a.lastMouseAct = action
 				a.lastMouseBtn = btn
@@ -322,8 +323,8 @@ EventLoop:
 				}
 
 				var newHandlerCapture Primitive = nil // Clear it by default.
-				if mouseHandlerCapture != nil {       // Check if already captured.
-					if handler := mouseHandlerCapture.MouseHandler(); handler != nil {
+				if a.mouseHandlerCapture != nil {     // Check if already captured.
+					if handler := a.mouseHandlerCapture.MouseHandler(); handler != nil {
 						_, newHandlerCapture = handler(action, event, func(p Primitive) {
 							a.SetFocus(p)
 						})
@@ -335,10 +336,7 @@ EventLoop:
 					})
 					a.draw()
 				}
-
-				a.Lock()
 				a.mouseHandlerCapture = newHandlerCapture
-				a.Unlock()
 			}
 
 		// If we have updates, now is the time to execute them.

mouse.go

@@ -1,6 +1,8 @@
 package tview
 
 import (
+	"time"
+
 	"github.com/gdamore/tcell"
 )
 
@@ -27,6 +29,8 @@ const (
 	WheelRight
 )
 
+var DoubleClickInterval = 500 * time.Millisecond
+
 // Does not set MouseMove or *Click actions.
 func (action MouseAction) getMouseButtonAction(lastBtn, btn tcell.ButtonMask) MouseAction {
 	btnDiff := btn ^ lastBtn
@@ -74,27 +78,33 @@ func (action MouseAction) getMouseButtonAction(lastBtn, btn tcell.ButtonMask) Mo
 // Do not call if the mouse moved.
 // Sets the *Click, including *DoubleClick.
 // This should be called last, after setting all the other flags.
-func (action MouseAction) getMouseClickAction(lastAct MouseAction) MouseAction {
+func (action MouseAction) getMouseClickAction(lastAct MouseAction, lastClickTime *time.Time) MouseAction {
 	if action&MouseMove == 0 {
 		if action&MouseLeftUp != 0 {
-			if lastAct&(MouseLeftClick|MouseLeftDoubleClick) == 0 {
+			if (*lastClickTime).Add(DoubleClickInterval).Before(time.Now()) {
 				action |= MouseLeftClick
-			} else if lastAct&MouseLeftDoubleClick == 0 {
+				*lastClickTime = time.Now()
+			} else {
 				action |= MouseLeftDoubleClick
+				*lastClickTime = time.Time{} // reset
 			}
 		}
 		if action&MouseMiddleUp != 0 {
-			if lastAct&(MouseMiddleClick|MouseMiddleDoubleClick) == 0 {
+			if (*lastClickTime).Add(DoubleClickInterval).Before(time.Now()) {
 				action |= MouseMiddleClick
-			} else if lastAct&MouseMiddleDoubleClick == 0 {
+				*lastClickTime = time.Now()
+			} else {
 				action |= MouseMiddleDoubleClick
+				*lastClickTime = time.Time{} // reset
 			}
 		}
 		if action&MouseRightUp != 0 {
-			if lastAct&(MouseRightClick|MouseRightDoubleClick) == 0 {
+			if (*lastClickTime).Add(DoubleClickInterval).Before(time.Now()) {
 				action |= MouseRightClick
-			} else if lastAct&MouseRightDoubleClick == 0 {
+				*lastClickTime = time.Now()
+			} else {
 				action |= MouseRightDoubleClick
+				*lastClickTime = time.Time{} // reset
 			}
 		}
 	}