cursor_unix.go

package saver

import (
	"github.com/BurntSushi/xgb"
	"github.com/BurntSushi/xgb/xfixes"
	"github.com/BurntSushi/xgb/xproto"

	"fyne.io/fyne/v2"
	"fyne.io/fyne/v2/driver"
)

var conn *xgb.Conn

func initCursor() {
	var err error
	conn, err = xgb.NewConn()
	if err != nil {
		fyne.LogError("Failed to connect to X11 to hide cursor", err)
		return
	}

	err = xfixes.Init(conn)
	if err != nil {
		fyne.LogError("Failed to init fixes extension to X11 to hide cursor", err)
		return
	}

	r, err := xfixes.QueryVersion(conn, 4, 0).Reply()
	if err != nil || r.MajorVersion < 4 {
		return
	}
}

func doHideCursor(ctx any) {
	switch win := ctx.(type) {
	case driver.X11WindowContext:
		if conn == nil {
			return
		}

		_ = xfixes.HideCursorChecked(conn, xproto.Window(win.WindowHandle)).Check()
	case driver.WaylandWindowContext:
		// TODO request cursor hide for Wayland
	}
}

func doShowCursor(ctx any) {
	switch win := ctx.(type) {
	case driver.X11WindowContext:
		if conn == nil {
			return
		}

		_ = xfixes.ShowCursorChecked(conn, xproto.Window(win.WindowHandle)).Check()
	case driver.WaylandWindowContext:
		// TODO request cursor hide for Wayland
	}
}