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// SPDX-FileCopyrightText: 2022 UnionTech Software Technology Co., Ltd.
//
// SPDX-License-Identifier: GPL-3.0-or-later
package keybind
import (
x "github.com/linuxdeepin/go-x11-client"
"github.com/linuxdeepin/go-x11-client/util/keysyms"
)
var grabMods []uint16
func init() {
grabMods = make([]uint16, len(keysyms.LockMods)+1)
copy(grabMods, keysyms.LockMods)
}
func Grab(conn *x.Conn, win x.Window, mods uint16, key x.Keycode) {
for _, m := range grabMods {
x.GrabKey(conn, true, win, mods|m,
key, x.GrabModeAsync, x.GrabModeAsync)
}
}
func Ungrab(conn *x.Conn, win x.Window, mods uint16, key x.Keycode) {
for _, m := range grabMods {
_ = x.UngrabKeyChecked(conn, key, win, mods|m).Check(conn)
}
}
func GrabChecked(conn *x.Conn, win x.Window, mods uint16, key x.Keycode) error {
return GrabCheckedV2(conn, win, mods, key, x.GrabModeAsync, x.GrabModeAsync)
}
func GrabCheckedV2(conn *x.Conn, win x.Window, mods uint16, key x.Keycode, pointerMode uint8, keyboardMode uint8) error {
for _, m := range grabMods {
err := x.GrabKeyChecked(conn, true, win, mods|m,
key, pointerMode, keyboardMode).Check(conn)
if err != nil {
return err
}
}
return nil
}
// GrabKeyboard grabs the entire keyboard.
func GrabKeyboard(conn *x.Conn, win x.Window) error {
reply, err := x.GrabKeyboard(conn, true, win, x.CurrentTime,
x.GrabModeAsync, x.GrabModeAsync).Reply(conn)
if err != nil {
return err
}
if reply.Status == x.GrabStatusSuccess {
// successful
return nil
}
return GrabKeyboardError{reply.Status}
}
type GrabKeyboardError struct {
Status byte
}
func (err GrabKeyboardError) Error() string {
const errMsgPrefix = "GrabKeyboard Failed status: "
switch err.Status {
case x.GrabStatusAlreadyGrabbed:
return errMsgPrefix + "AlreadyGrabbed"
case x.GrabStatusInvalidTime:
return errMsgPrefix + "InvalidTime"
case x.GrabStatusNotViewable:
return errMsgPrefix + "NotViewable"
case x.GrabStatusFrozen:
return errMsgPrefix + "Frozen"
default:
return errMsgPrefix + "Unknown"
}
}
// UngrabKeyboard undoes GrabKeyboard.
func UngrabKeyboard(conn *x.Conn) error {
return x.UngrabKeyboardChecked(conn, x.CurrentTime).Check(conn)
}
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