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inputdevices.go
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inputdevices.go
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/*
* Copyright (C) 2019 ~ 2021 Uniontech Software Technology Co.,Ltd
*
* Author: zsien <i@zsien.cn>
*
* Maintainer: zsien <i@zsien.cn>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package inputdevices
import (
"strconv"
"sync"
"github.com/godbus/dbus"
"pkg.deepin.io/lib/dbusutil"
)
//go:generate dbusutil-gen -type InputDevices inputdevices.go
//go:generate dbusutil-gen em -type InputDevices
type InputDevices struct {
service *dbusutil.Service
l *libinput
maxTouchscreenId uint32
touchscreensMu sync.Mutex
touchscreens map[dbus.ObjectPath]*Touchscreen
// dbusutil-gen: equal=touchscreenSliceEqual
Touchscreens []dbus.ObjectPath
//nolint
signals *struct {
TouchscreenAdded, TouchscreenRemoved struct {
path dbus.ObjectPath
}
}
}
func newInputDevices() *InputDevices {
return &InputDevices{
touchscreens: make(map[dbus.ObjectPath]*Touchscreen),
}
}
func (*InputDevices) GetInterfaceName() string {
return dbusInterface
}
func (m *InputDevices) init() {
m.l = newLibinput(m)
m.l.start()
}
func (m *InputDevices) newTouchscreen(dev *libinputDevice) {
m.touchscreensMu.Lock()
defer m.touchscreensMu.Unlock()
t := newTouchscreen(dev, m.service)
m.maxTouchscreenId++
path := dbus.ObjectPath(touchscreenDBusPath + strconv.FormatUint(uint64(t.id), 10))
t.export(path)
m.touchscreens[path] = t
touchscreens := append(m.Touchscreens, path)
m.setPropTouchscreens(touchscreens)
m.service.Emit(t, "TouchscreenAdded", path)
}
func (m *InputDevices) removeTouchscreen(dev *libinputDevice) {
m.touchscreensMu.Lock()
defer m.touchscreensMu.Unlock()
i := m.getIndexByDevNode(dev.GetDevNode())
if i == -1 {
logger.Warningf("device %s not found", dev.GetDevNode())
return
}
path := m.Touchscreens[i]
touchscreens := append(m.Touchscreens[:i], m.Touchscreens[i+1:]...)
m.setPropTouchscreens(touchscreens)
t := m.touchscreens[path]
t.stopExport()
delete(m.touchscreens, path)
m.service.Emit(t, "TouchscreenRemoved", path)
}
func (m *InputDevices) getIndexByDevNode(devNode string) int {
var path dbus.ObjectPath
for i, v := range m.touchscreens {
if v.DevNode == devNode {
path = i
}
}
if path == "" {
return -1
}
for i, v := range m.Touchscreens {
if v == path {
return i
}
}
return -1
}
func touchscreenSliceEqual(v1 []dbus.ObjectPath, v2 []dbus.ObjectPath) bool {
if len(v1) != len(v2) {
return false
}
for i, e1 := range v1 {
if e1 != v2[i] {
return false
}
}
return true
}