/***************************************************************************
* Copyright (C) 2009 by Ilya Kotov *
* forkotov02@hotmail.ru *
* *
* Copyright (C) 2003-2007 by Justin Karneges and Michail Pishchagin *
* *
* 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 2 of the License, or *
* (at your option) 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <QSettings>
#include <QX11Info>
#include <QEvent>
#include <QKeyEvent>
#include <QCoreApplication>
#include <QApplication>
#include <QDesktopWidget>
#define Visual XVisual
extern "C"
{
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/keysym.h>
#include <X11/XF86keysym.h>
}
#undef CursorShape
#undef Status
#undef Bool
#undef None
#undef KeyPress
#undef Visual
#include <qmmp/qmmp.h>
#include <qmmp/soundcore.h>
#include <qmmpui/mediaplayer.h>
#include "hotkeymanager.h"
quint32 Hotkey::defaultKey()
{
return defaultKey(action);
}
quint32 Hotkey::defaultKey(int act)
{
//default key bindings
QMap<int, quint32> keyMap;
keyMap[PLAY] = XF86XK_AudioPlay;
keyMap[STOP] = XF86XK_AudioStop;
keyMap[PAUSE] = XF86XK_AudioPause;
keyMap[PLAY_PAUSE] = 0;
keyMap[NEXT] = XF86XK_AudioNext;
keyMap[PREVIOUS] = XF86XK_AudioPrev;
keyMap[SHOW_HIDE] = 0;
keyMap[VOLUME_UP] = XF86XK_AudioRaiseVolume;
keyMap[VOLUME_DOWN] = XF86XK_AudioLowerVolume;
return keyMap[act];
}
HotkeyManager::HotkeyManager(QObject *parent) : General(parent)
{
QCoreApplication::instance()->installEventFilter(this);
WId rootWindow = QX11Info::appRootWindow();
QSettings settings(Qmmp::configFile(), QSettings::IniFormat); //load settings
settings.beginGroup("Hotkey");
for (int i = Hotkey::PLAY, j = 0; i <= Hotkey::VOLUME_DOWN; ++i, ++j)
{
quint32 key = settings.value(QString("key_%1").arg(i), Hotkey::defaultKey(i)).toUInt();
quint32 mod = settings.value(QString("modifiers_%1").arg(i), 0).toUInt();
if (key)
{
foreach(long mask_mod, ignModifiersList())
{
Hotkey *hotkey = new Hotkey;
hotkey->action = i;
hotkey->key = key;
hotkey->code = XKeysymToKeycode(QX11Info::display(), hotkey->key);
if(!hotkey->code)
continue;
XGrabKey(QX11Info::display(), hotkey->code, mod | mask_mod, rootWindow, False,
GrabModeAsync, GrabModeAsync);
hotkey->mod = mod | mask_mod;
m_grabbedKeys << hotkey;
}
}
}
settings.endGroup();
XSync(QX11Info::display(), False);
// XSetErrorHandler();
}
HotkeyManager::~HotkeyManager()
{
foreach(Hotkey *key, m_grabbedKeys)
{
if(key->code)
XUngrabKey(QX11Info::display(), key->code, key->mod, QX11Info::appRootWindow());
}
while (!m_grabbedKeys.isEmpty())
delete m_grabbedKeys.takeFirst ();
}
const QString HotkeyManager::getKeyString(quint32 key, quint32 modifiers)
{
QString strModList[] = { "Control", "Shift", "Alt", "Mod2", "Mod3", "Super", "Mod5" };
quint32 modList[] = { ControlMask, ShiftMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask };
QString keyStr;
for (int j = 0; j < 7; j++)
{
if (modifiers & modList[j])
keyStr.append(strModList[j] + "+");
}
keyStr.append(XKeysymToString(key));
return keyStr;
}
bool HotkeyManager::eventFilter(QObject* o, QEvent* e)
{
//receive events from active and root windows only
if (e->type() == QEvent::KeyPress && (o == qApp->desktop () || o == qApp->activeWindow ()))
{
QKeyEvent* k = static_cast<QKeyEvent*>(e);
quint32 key = XKeycodeToKeysym(QX11Info::display(), k->nativeScanCode (), 0);
quint32 mod = k->nativeModifiers ();
foreach(Hotkey *hotkey, m_grabbedKeys)
{
if (hotkey->key != key || hotkey->mod != mod)
continue;
qDebug("HotkeyManager: [%s] pressed", qPrintable(getKeyString(key, mod)));
switch (hotkey->action)
{
case Hotkey::PLAY:
MediaPlayer::instance()->play();
break;
case Hotkey::STOP:
MediaPlayer::instance()->stop();
break;
case Hotkey::PAUSE:
SoundCore::instance()->pause();
break;
case Hotkey::PLAY_PAUSE:
if (SoundCore::instance()->state() == Qmmp::Stopped)
MediaPlayer::instance()->play();
else if (SoundCore::instance()->state() != Qmmp::FatalError)
SoundCore::instance()->pause();
break;
case Hotkey::NEXT:
MediaPlayer::instance()->next();
break;
case Hotkey::PREVIOUS:
MediaPlayer::instance()->previous();
break;
case Hotkey::SHOW_HIDE:
toggleVisibility();
break;
case Hotkey::VOLUME_UP:
case Hotkey::VOLUME_DOWN:
SoundCore *core = SoundCore::instance();
int volume = qMax(core->leftVolume(), core->rightVolume());
int balance = 0;
int left = core->leftVolume();
int right = core->rightVolume();
if (left || right)
balance = (right - left)*100/volume;
if(hotkey->action == Hotkey::VOLUME_UP)
volume = qMin (100, volume + 5);
else
volume = qMax (0, volume - 5);
core->setVolume(volume-qMax(balance,0)*volume/100,
volume+qMin(balance,0)*volume/100);
break;
}
qApp->processEvents();
}
}
return QObject::eventFilter(o, e);
}
long HotkeyManager::m_alt_mask = 0;
long HotkeyManager::m_meta_mask = 0;
long HotkeyManager::m_super_mask = 0;
long HotkeyManager::m_hyper_mask = 0;
long HotkeyManager::m_numlock_mask = 0;
bool HotkeyManager::m_haveMods = false;
//copied from globalshortcutmanager_x11.cpp by Justin Karneges and Michail Pishchagin (Psi project)
void HotkeyManager::ensureModifiers()
{
if (m_haveMods)
return;
Display* appDpy = QX11Info::display();
XModifierKeymap* map = XGetModifierMapping(appDpy);
if (map)
{
// XKeycodeToKeysym helper code adapeted from xmodmap
int min_keycode, max_keycode, keysyms_per_keycode = 1;
XDisplayKeycodes (appDpy, &min_keycode, &max_keycode);
XFree(XGetKeyboardMapping (appDpy, min_keycode, (max_keycode - min_keycode + 1), &keysyms_per_keycode));
int i, maskIndex = 0, mapIndex = 0;
for (maskIndex = 0; maskIndex < 8; maskIndex++)
{
for (i = 0; i < map->max_keypermod; i++)
{
if (map->modifiermap[mapIndex])
{
KeySym sym;
int symIndex = 0;
do
{
sym = XKeycodeToKeysym(appDpy, map->modifiermap[mapIndex], symIndex);
symIndex++;
}
while ( !sym && symIndex < keysyms_per_keycode);
if (!m_alt_mask && (sym == XK_Alt_L || sym == XK_Alt_R))
{
m_alt_mask = 1 << maskIndex;
}
if (!m_meta_mask && (sym == XK_Meta_L || sym == XK_Meta_R))
{
m_meta_mask = 1 << maskIndex;
}
if (!m_super_mask && (sym == XK_Super_L || sym == XK_Super_R))
{
m_super_mask = 1 << maskIndex;
}
if (!m_hyper_mask && (sym == XK_Hyper_L || sym == XK_Hyper_R))
{
m_hyper_mask = 1 << maskIndex;
}
if (!m_numlock_mask && (sym == XK_Num_Lock))
{
m_numlock_mask = 1 << maskIndex;
}
}
mapIndex++;
}
}
XFreeModifiermap(map);
// logic from qt source see gui/kernel/qkeymapper_x11.cpp
if (!m_meta_mask || m_meta_mask == m_alt_mask)
{
// no meta keys... s,meta,super,
m_meta_mask = m_super_mask;
if (!m_meta_mask || m_meta_mask == m_alt_mask)
{
// no super keys either? guess we'll use hyper then
m_meta_mask = m_hyper_mask;
}
}
}
else
{
// assume defaults
m_alt_mask = Mod1Mask;
m_meta_mask = Mod4Mask;
}
m_haveMods = true;
}
QList<long> HotkeyManager::ignModifiersList()
{
ensureModifiers();
QList<long> ret;
if (m_numlock_mask)
{
ret << 0 << LockMask << m_numlock_mask << (LockMask | m_numlock_mask);
}
else
{
ret << 0 << LockMask;
}
return ret;
}
quint32 HotkeyManager::keycodeToKeysym(quint32 keycode)
{
return XKeycodeToKeysym(QX11Info::display(), keycode, 0);
}
