Xorg input driver (#53)

* add xf86 input driver.

* cleanup.

* rewrite to unix socket PoC.

* add input rebuild.

* lint & docs.

* add input driver struct.

* comments, lint, socket name from config.

* add touch events to webrtc.

* switch to uint32.

* misc update logging & linting,

* fix screen size

* set touchscreen as core pointer.

* add touch to ws control.

* SendCoreEvents.

* extract to own xinput folder.

* add debounce.

* switch pressure to uint8.

* check buffer size.

* send touch events with system init.

pkg/types/desktop.go

@@ -1,6 +1,7 @@
 package types
 
 import (
+	"fmt"
 	"image"
 )
 
@@ -19,6 +20,10 @@ type ScreenSize struct {
 	Rate   int16
 }
 
+func (s ScreenSize) String() string {
+	return fmt.Sprintf("%dx%d@%d", s.Width, s.Height, s.Rate)
+}
+
 type KeyboardModifiers struct {
 	NumLock  *bool
 	CapsLock *bool
@@ -68,6 +73,12 @@ type DesktopManager interface {
 	OnFileChooserDialogClosed(listener func())
 	OnEventError(listener func(error_code uint8, message string, request_code uint8, minor_code uint8))
 
+	// input driver
+	HasTouchSupport() bool
+	TouchBegin(touchId uint32, x, y int, pressure uint8) error
+	TouchUpdate(touchId uint32, x, y int, pressure uint8) error
+	TouchEnd(touchId uint32, x, y int, pressure uint8) error
+
 	// clipboard
 	ClipboardGetText() (*ClipboardText, error)
 	ClipboardSetText(data ClipboardText) error

pkg/types/event/events.go

@@ -43,6 +43,10 @@ const (
 	CONTROL_KEYPRESS = "control/keypress"
 	CONTROL_KEYDOWN  = "control/keydown"
 	CONTROL_KEYUP    = "control/keyup"
+	// touch
+	CONTROL_TOUCHBEGIN  = "control/touchbegin"
+	CONTROL_TOUCHUPDATE = "control/touchupdate"
+	CONTROL_TOUCHEND    = "control/touchend"
 	// actions
 	CONTROL_CUT        = "control/cut"
 	CONTROL_COPY       = "control/copy"

pkg/types/message/messages.go

@@ -20,6 +20,7 @@ type SystemInit struct {
 	ScreenSize        ScreenSize             `json:"screen_size"`
 	Sessions          map[string]SessionData `json:"sessions"`
 	Settings          types.Settings         `json:"settings"`
+	TouchEvents       bool                   `json:"touch_events"`
 	ScreencastEnabled bool                   `json:"screencast_enabled"`
 	WebRTC            SystemWebRTC           `json:"webrtc"`
 }
@@ -129,6 +130,12 @@ type ControlKey struct {
 	Keysym uint32 `json:"keysym"`
 }
 
+type ControlTouch struct {
+	TouchId uint32 `json:"touch_id"`
+	*ControlPos
+	Pressure uint8 `json:"pressure"`
+}
+
 /////////////////////////////
 // Screen
 /////////////////////////////