From 2bf53f0397f16ee0367be99373b57dadf1742195 Mon Sep 17 00:00:00 2001
From: Mathias Fredriksson <mafredri@gmail.com>
Date: Tue, 8 Feb 2022 23:50:49 +0200
Subject: Add support for mouse click and scroll wheel

Requires the webos client to have support for these events, see:

https://github.com/Wouterdek/magic4pc/pull/10
---
 cmd/magic4linux/main.go | 23 ++++++++++++++++++++---
 m4p/client.go           |  9 +++++++--
 m4p/message.go          | 20 +++++++++++++++++++-
 3 files changed, 46 insertions(+), 6 deletions(-)

diff --git a/cmd/magic4linux/main.go b/cmd/magic4linux/main.go
index 0275d64..a2775ac 100644
--- a/cmd/magic4linux/main.go
+++ b/cmd/magic4linux/main.go
@@ -36,6 +36,12 @@ func run(ctx context.Context) error {
 	}
 	defer kbd.Close()
 
+	mouse, err := uinput.CreateMouse("/dev/uinput", []byte("magic4linux-mouse"))
+	if err != nil {
+		return err
+	}
+	defer mouse.Close()
+
 	tp, err := uinput.CreateTouchPad("/dev/uinput", []byte("magic4linux-touchpad"), 0, 1920, 0, 1080)
 	if err != nil {
 		return err
@@ -54,7 +60,7 @@ func run(ctx context.Context) error {
 			return nil
 
 		case dev := <-d.NextDevice():
-			err = connect(ctx, dev, kbd, tp)
+			err = connect(ctx, dev, kbd, mouse, tp)
 			if err != nil {
 				log.Printf("connect: %v", err)
 			}
@@ -62,7 +68,7 @@ func run(ctx context.Context) error {
 	}
 }
 
-func connect(ctx context.Context, dev m4p.DeviceInfo, kbd uinput.Keyboard, tp uinput.TouchPad) error {
+func connect(ctx context.Context, dev m4p.DeviceInfo, kbd uinput.Keyboard, mouse uinput.Mouse, tp uinput.TouchPad) error {
 	addr := fmt.Sprintf("%s:%d", dev.IPAddr, dev.Port)
 	log.Printf("connect: connecting to: %s", addr)
 
@@ -160,11 +166,22 @@ func connect(ctx context.Context, dev m4p.DeviceInfo, kbd uinput.Keyboard, tp ui
 
 			x := coordinate[0]
 			y := coordinate[1]
-			fmt.Println("Move mouse", x, y)
+			// fmt.Println("Move mouse", x, y)
 			tp.MoveTo(x, y)
 
 			// log.Printf("connect: %d %d %#v %#v %#v %#v", returnValue, deviceID, coordinate, gyroscope, acceleration, quaternion)
 
+		case m4p.MouseMessage:
+			switch m.Mouse.Type {
+			case "mousedown":
+				tp.LeftPress()
+			case "mouseup":
+				tp.LeftRelease()
+			}
+
+		case m4p.WheelMessage:
+			mouse.Wheel(false, m.Wheel.Delta)
+
 		default:
 		}
 	}
diff --git a/m4p/client.go b/m4p/client.go
index 45f8b77..3467b3f 100644
--- a/m4p/client.go
+++ b/m4p/client.go
@@ -2,7 +2,6 @@ package m4p
 
 import (
 	"context"
-	"encoding/hex"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -132,8 +131,14 @@ recvLoop:
 		case InputMessage:
 			log.Printf("m4p: Client: recv: got %s: %v", m.Type, m.Input)
 
+		case MouseMessage:
+			log.Printf("m4p: Client: recv: got %s: %v", m.Type, m.Mouse)
+
+		case WheelMessage:
+			log.Printf("m4p: Client: recv: got %s: %v", m.Type, m.Wheel)
+
 		case RemoteUpdateMessage:
-			log.Printf("m4p: Client: recv: got %s: %s", m.Type, hex.EncodeToString(m.RemoteUpdate.Payload))
+			// log.Printf("m4p: Client: recv: got %s: %s", m.Type, hex.EncodeToString(m.RemoteUpdate.Payload))
 
 		default:
 			log.Printf("m4p: Client: recv: unknown message: %s", m.Type)
diff --git a/m4p/message.go b/m4p/message.go
index 34a9383..0a9ebeb 100644
--- a/m4p/message.go
+++ b/m4p/message.go
@@ -13,6 +13,8 @@ const (
 	SubSensorMessage    MessageType = "sub_sensor"
 	RemoteUpdateMessage MessageType = "remote_update"
 	InputMessage        MessageType = "input"
+	MouseMessage        MessageType = "mouse"
+	WheelMessage        MessageType = "wheel"
 	KeepAliveMessage    MessageType = "keepalive"
 )
 
@@ -24,6 +26,8 @@ type Message struct {
 	*Register
 	*RemoteUpdate
 	*Input
+	Mouse Mouse `json:"mouse"`
+	Wheel Wheel `json:"wheel"`
 }
 
 // NewMessage initializes a message with the type and protocol version.
@@ -62,10 +66,24 @@ type RemoteUpdate struct {
 	Payload []byte `json:"payload"`
 }
 
+type Coordinates struct {
+	X int32 `json:"x"`
+	Y int32 `json:"y"`
+}
+
+type Mouse struct {
+	Type string `json:"type"` // mousedown, mouseup
+	Coordinates
+}
+
+type Wheel struct {
+	Delta int32 `json:"delta"`
+	Coordinates
+}
+
 // type (
 // 	ReturnValue  uint8
 // 	DeviceID     uint8
-// 	Coordinates  struct{ X, Y int32 }
 // 	Gyroscope    struct{ X, Y, Z float32 }
 // 	Acceleration struct{ X, Y, Z float32 }
 // 	Quaternion   struct{ Q0, Q1, Q2, Q3 float32 }
-- 
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