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kwin/tabbox/tabbox.cpp
Martin Gräßlin 58361213de Add the modifiers relevant for global shortcuts into the input Events 
Summary:
Prior to this change various event filters performed deep calls into
Xkb class to figure out the modifiers relevant for global shortcuts (aka
consumed modifiers). This shows that this is a general useful
information which should be available to all input event filters
directly.

Thus it's now added to the input events and exposed directly in
InputRedirection so that the calls into Xkb are no longer needed.

Reviewers: #kwin, #plasma_on_wayland

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D3810
2016-12-27 18:19:15 +01:00

1676 lines
54 KiB
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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
Copyright (C) 2009 Martin Gräßlin <mgraesslin@kde.org>
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, see <http://www.gnu.org/licenses/>.
*********************************************************************/
//#define QT_CLEAN_NAMESPACE
// own
#include "tabbox.h"
// tabbox
#include "tabbox/clientmodel.h"
#include "tabbox/desktopmodel.h"
#include "tabbox/tabboxconfig.h"
#include "tabbox/desktopchain.h"
#include "tabbox/tabbox_logging.h"
// kwin
#ifdef KWIN_BUILD_ACTIVITIES
#include "activities.h"
#endif
#include "client.h"
#include "effects.h"
#include "input.h"
#include "keyboard_input.h"
#include "focuschain.h"
#include "screenedge.h"
#include "screens.h"
#include "unmanaged.h"
#include "virtualdesktops.h"
#include "workspace.h"
#include "xcbutils.h"
// Qt
#include <QAction>
#include <QKeyEvent>
// KDE
#include <KConfig>
#include <KConfigGroup>
#include <KGlobalAccel>
#include <KLocalizedString>
#include <kkeyserver.h>
// X11
#include <X11/keysym.h>
#include <X11/keysymdef.h>
// xcb
#include <xcb/xcb_keysyms.h>
// specify externals before namespace
namespace KWin
{
namespace TabBox
{
TabBoxHandlerImpl::TabBoxHandlerImpl(TabBox* tabBox)
: TabBoxHandler(tabBox)
, m_tabBox(tabBox)
, m_desktopFocusChain(new DesktopChainManager(this))
{
// connects for DesktopFocusChainManager
VirtualDesktopManager *vds = VirtualDesktopManager::self();
connect(vds, SIGNAL(countChanged(uint,uint)), m_desktopFocusChain, SLOT(resize(uint,uint)));
connect(vds, SIGNAL(currentChanged(uint,uint)), m_desktopFocusChain, SLOT(addDesktop(uint,uint)));
#ifdef KWIN_BUILD_ACTIVITIES
if (Activities::self()) {
connect(Activities::self(), SIGNAL(currentChanged(QString)), m_desktopFocusChain, SLOT(useChain(QString)));
}
#endif
}
TabBoxHandlerImpl::~TabBoxHandlerImpl()
{
}
int TabBoxHandlerImpl::activeScreen() const
{
return screens()->current();
}
int TabBoxHandlerImpl::currentDesktop() const
{
return VirtualDesktopManager::self()->current();
}
QString TabBoxHandlerImpl::desktopName(TabBoxClient* client) const
{
if (TabBoxClientImpl* c = static_cast< TabBoxClientImpl* >(client)) {
if (!c->client()->isOnAllDesktops())
return VirtualDesktopManager::self()->name(c->client()->desktop());
}
return VirtualDesktopManager::self()->name(VirtualDesktopManager::self()->current());
}
QString TabBoxHandlerImpl::desktopName(int desktop) const
{
return VirtualDesktopManager::self()->name(desktop);
}
QWeakPointer<TabBoxClient> TabBoxHandlerImpl::nextClientFocusChain(TabBoxClient* client) const
{
if (TabBoxClientImpl* c = static_cast< TabBoxClientImpl* >(client)) {
auto next = FocusChain::self()->nextMostRecentlyUsed(c->client());
if (next)
return next->tabBoxClient();
}
return QWeakPointer<TabBoxClient>();
}
QWeakPointer< TabBoxClient > TabBoxHandlerImpl::firstClientFocusChain() const
{
if (auto c = FocusChain::self()->firstMostRecentlyUsed()) {
return QWeakPointer<TabBoxClient>(c->tabBoxClient());
} else {
return QWeakPointer<TabBoxClient>();
}
}
bool TabBoxHandlerImpl::isInFocusChain(TabBoxClient *client) const
{
if (TabBoxClientImpl *c = static_cast<TabBoxClientImpl*>(client)) {
return FocusChain::self()->contains(c->client());
}
return false;
}
int TabBoxHandlerImpl::nextDesktopFocusChain(int desktop) const
{
return m_desktopFocusChain->next(desktop);
}
int TabBoxHandlerImpl::numberOfDesktops() const
{
return VirtualDesktopManager::self()->count();
}
QWeakPointer<TabBoxClient> TabBoxHandlerImpl::activeClient() const
{
if (Workspace::self()->activeClient())
return Workspace::self()->activeClient()->tabBoxClient();
else
return QWeakPointer<TabBoxClient>();
}
bool TabBoxHandlerImpl::checkDesktop(TabBoxClient* client, int desktop) const
{
auto current = (static_cast< TabBoxClientImpl* >(client))->client();
switch (config().clientDesktopMode()) {
case TabBoxConfig::AllDesktopsClients:
return true;
case TabBoxConfig::ExcludeCurrentDesktopClients:
return !current->isOnDesktop(desktop);
default: // TabBoxConfig::OnlyCurrentDesktopClients
return current->isOnDesktop(desktop);
}
}
bool TabBoxHandlerImpl::checkActivity(TabBoxClient* client) const
{
auto current = (static_cast< TabBoxClientImpl* >(client))->client();
switch (config().clientActivitiesMode()) {
case TabBoxConfig::AllActivitiesClients:
return true;
case TabBoxConfig::ExcludeCurrentActivityClients:
return !current->isOnCurrentActivity();
default: // TabBoxConfig::OnlyCurrentActivityClients
return current->isOnCurrentActivity();
}
}
bool TabBoxHandlerImpl::checkApplications(TabBoxClient* client) const
{
auto current = (static_cast< TabBoxClientImpl* >(client))->client();
TabBoxClientImpl* c;
QListIterator< QWeakPointer<TabBoxClient> > i(clientList());
switch (config().clientApplicationsMode()) {
case TabBoxConfig::OneWindowPerApplication:
// check if the list already contains an entry of this application
while (i.hasNext()) {
QSharedPointer<TabBoxClient> client = i.next().toStrongRef();
if (!client) {
continue;
}
if ((c = dynamic_cast< TabBoxClientImpl* >(client.data()))) {
if (c->client()->resourceClass() == current->resourceClass()) {
return false;
}
}
}
return true;
case TabBoxConfig::AllWindowsCurrentApplication: {
QSharedPointer<TabBoxClient> pointer = tabBox->activeClient().toStrongRef();
if (!pointer) {
return false;
}
if ((c = dynamic_cast< TabBoxClientImpl* >(pointer.data()))) {
if (c->client()->resourceClass() == current->resourceClass()) {
return true;
}
}
return false;
}
default: // TabBoxConfig::AllWindowsAllApplications
return true;
}
}
bool TabBoxHandlerImpl::checkMinimized(TabBoxClient* client) const
{
switch (config().clientMinimizedMode()) {
case TabBoxConfig::ExcludeMinimizedClients:
return !client->isMinimized();
case TabBoxConfig::OnlyMinimizedClients:
return client->isMinimized();
default: // TabBoxConfig::IgnoreMinimizedStatus
return true;
}
}
bool TabBoxHandlerImpl::checkMultiScreen(TabBoxClient* client) const
{
auto current = (static_cast< TabBoxClientImpl* >(client))->client();
switch (config().clientMultiScreenMode()) {
case TabBoxConfig::IgnoreMultiScreen:
return true;
case TabBoxConfig::ExcludeCurrentScreenClients:
return current->screen() != screens()->current();
default: // TabBoxConfig::OnlyCurrentScreenClients
return current->screen() == screens()->current();
}
}
QWeakPointer<TabBoxClient> TabBoxHandlerImpl::clientToAddToList(TabBoxClient* client, int desktop) const
{
if (!client) {
return QWeakPointer<TabBoxClient>();
}
AbstractClient* ret = nullptr;
AbstractClient* current = (static_cast< TabBoxClientImpl* >(client))->client();
bool addClient = checkDesktop(client, desktop)
&& checkActivity(client)
&& checkApplications(client)
&& checkMinimized(client)
&& checkMultiScreen(client);
addClient = addClient && current->wantsTabFocus() && !current->skipSwitcher();
if (addClient) {
// don't add windows that have modal dialogs
AbstractClient* modal = current->findModal();
if (modal == nullptr || modal == current)
ret = current;
else if (!clientList().contains(modal->tabBoxClient()))
ret = modal;
else {
// nothing
}
}
if (ret)
return ret->tabBoxClient();
else
return QWeakPointer<TabBoxClient>();
}
TabBoxClientList TabBoxHandlerImpl::stackingOrder() const
{
ToplevelList stacking = Workspace::self()->stackingOrder();
TabBoxClientList ret;
foreach (Toplevel *toplevel, stacking) {
if (Client *client = qobject_cast<Client*>(toplevel)) {
ret.append(client->tabBoxClient());
}
}
return ret;
}
bool TabBoxHandlerImpl::isKWinCompositing() const {
return Workspace::self()->compositing();
}
void TabBoxHandlerImpl::raiseClient(TabBoxClient* c) const
{
Workspace::self()->raiseClient(static_cast<TabBoxClientImpl*>(c)->client());
}
void TabBoxHandlerImpl::restack(TabBoxClient *c, TabBoxClient *under)
{
Workspace::self()->restack(static_cast<TabBoxClientImpl*>(c)->client(),
static_cast<TabBoxClientImpl*>(under)->client(), true);
}
void TabBoxHandlerImpl::elevateClient(TabBoxClient *c, QWindow *tabbox, bool b) const
{
auto cl = static_cast<TabBoxClientImpl*>(c)->client();
cl->elevate(b);
if (Toplevel *w = Workspace::self()->findInternal(tabbox))
w->elevate(b);
}
void TabBoxHandlerImpl::shadeClient(TabBoxClient *c, bool b) const
{
Client *cl = dynamic_cast<Client*>(static_cast<TabBoxClientImpl*>(c)->client());
if (!cl) {
// shading is X11 specific
return;
}
cl->cancelShadeHoverTimer(); // stop core shading action
if (!b && cl->shadeMode() == ShadeNormal)
cl->setShade(ShadeHover);
else if (b && cl->shadeMode() == ShadeHover)
cl->setShade(ShadeNormal);
}
QWeakPointer<TabBoxClient> TabBoxHandlerImpl::desktopClient() const
{
foreach (Toplevel *toplevel, Workspace::self()->stackingOrder()) {
Client *client = qobject_cast<Client*>(toplevel);
if (client && client->isDesktop() && client->isOnCurrentDesktop() && client->screen() == screens()->current()) {
return client->tabBoxClient();
}
}
return QWeakPointer<TabBoxClient>();
}
void TabBoxHandlerImpl::activateAndClose()
{
m_tabBox->accept();
}
void TabBoxHandlerImpl::highlightWindows(TabBoxClient *window, QWindow *controller)
{
if (!effects) {
return;
}
QVector<EffectWindow*> windows;
if (window) {
windows << static_cast<TabBoxClientImpl*>(window)->client()->effectWindow();
}
if (auto t = Workspace::self()->findToplevel(controller)) {
windows << t->effectWindow();
}
static_cast<EffectsHandlerImpl*>(effects)->highlightWindows(windows);
}
/*********************************************************
* TabBoxClientImpl
*********************************************************/
TabBoxClientImpl::TabBoxClientImpl(AbstractClient *client)
: TabBoxClient()
, m_client(client)
{
}
TabBoxClientImpl::~TabBoxClientImpl()
{
}
QString TabBoxClientImpl::caption() const
{
if (m_client->isDesktop())
return i18nc("Special entry in alt+tab list for minimizing all windows",
"Show Desktop");
return m_client->caption();
}
QIcon TabBoxClientImpl::icon() const
{
if (m_client->isDesktop()) {
return QIcon::fromTheme(QStringLiteral("user-desktop"));
}
return m_client->icon();
}
WId TabBoxClientImpl::window() const
{
return m_client->windowId();
}
bool TabBoxClientImpl::isMinimized() const
{
return m_client->isMinimized();
}
int TabBoxClientImpl::x() const
{
return m_client->x();
}
int TabBoxClientImpl::y() const
{
return m_client->y();
}
int TabBoxClientImpl::width() const
{
return m_client->width();
}
int TabBoxClientImpl::height() const
{
return m_client->height();
}
bool TabBoxClientImpl::isCloseable() const
{
return m_client->isCloseable();
}
void TabBoxClientImpl::close()
{
m_client->closeWindow();
}
bool TabBoxClientImpl::isFirstInTabBox() const
{
return m_client->isFirstInTabBox();
}
/*********************************************************
* TabBox
*********************************************************/
TabBox *TabBox::s_self = nullptr;
TabBox *TabBox::create(QObject *parent)
{
Q_ASSERT(!s_self);
s_self = new TabBox(parent);
return s_self;
}
TabBox::TabBox(QObject *parent)
: QObject(parent)
, m_displayRefcount(0)
, m_desktopGrab(false)
, m_tabGrab(false)
, m_noModifierGrab(false)
, m_forcedGlobalMouseGrab(false)
, m_ready(false)
{
m_isShown = false;
m_defaultConfig = TabBoxConfig();
m_defaultConfig.setTabBoxMode(TabBoxConfig::ClientTabBox);
m_defaultConfig.setClientDesktopMode(TabBoxConfig::OnlyCurrentDesktopClients);
m_defaultConfig.setClientActivitiesMode(TabBoxConfig::OnlyCurrentActivityClients);
m_defaultConfig.setClientApplicationsMode(TabBoxConfig::AllWindowsAllApplications);
m_defaultConfig.setClientMinimizedMode(TabBoxConfig::IgnoreMinimizedStatus);
m_defaultConfig.setShowDesktopMode(TabBoxConfig::DoNotShowDesktopClient);
m_defaultConfig.setClientMultiScreenMode(TabBoxConfig::IgnoreMultiScreen);
m_defaultConfig.setClientSwitchingMode(TabBoxConfig::FocusChainSwitching);
m_alternativeConfig = TabBoxConfig();
m_alternativeConfig.setTabBoxMode(TabBoxConfig::ClientTabBox);
m_alternativeConfig.setClientDesktopMode(TabBoxConfig::AllDesktopsClients);
m_alternativeConfig.setClientActivitiesMode(TabBoxConfig::OnlyCurrentActivityClients);
m_alternativeConfig.setClientApplicationsMode(TabBoxConfig::AllWindowsAllApplications);
m_alternativeConfig.setClientMinimizedMode(TabBoxConfig::IgnoreMinimizedStatus);
m_alternativeConfig.setShowDesktopMode(TabBoxConfig::DoNotShowDesktopClient);
m_alternativeConfig.setClientMultiScreenMode(TabBoxConfig::IgnoreMultiScreen);
m_alternativeConfig.setClientSwitchingMode(TabBoxConfig::FocusChainSwitching);
m_defaultCurrentApplicationConfig = m_defaultConfig;
m_defaultCurrentApplicationConfig.setClientApplicationsMode(TabBoxConfig::AllWindowsCurrentApplication);
m_alternativeCurrentApplicationConfig = m_alternativeConfig;
m_alternativeCurrentApplicationConfig.setClientApplicationsMode(TabBoxConfig::AllWindowsCurrentApplication);
m_desktopConfig = TabBoxConfig();
m_desktopConfig.setTabBoxMode(TabBoxConfig::DesktopTabBox);
m_desktopConfig.setShowTabBox(true);
m_desktopConfig.setShowDesktopMode(TabBoxConfig::DoNotShowDesktopClient);
m_desktopConfig.setDesktopSwitchingMode(TabBoxConfig::MostRecentlyUsedDesktopSwitching);
m_desktopListConfig = TabBoxConfig();
m_desktopListConfig.setTabBoxMode(TabBoxConfig::DesktopTabBox);
m_desktopListConfig.setShowTabBox(true);
m_desktopListConfig.setShowDesktopMode(TabBoxConfig::DoNotShowDesktopClient);
m_desktopListConfig.setDesktopSwitchingMode(TabBoxConfig::StaticDesktopSwitching);
m_tabBox = new TabBoxHandlerImpl(this);
QTimer::singleShot(0, this, SLOT(handlerReady()));
m_tabBoxMode = TabBoxDesktopMode; // init variables
connect(&m_delayedShowTimer, SIGNAL(timeout()), this, SLOT(show()));
connect(Workspace::self(), SIGNAL(configChanged()), this, SLOT(reconfigure()));
}
TabBox::~TabBox()
{
s_self = nullptr;
}
void TabBox::handlerReady()
{
m_tabBox->setConfig(m_defaultConfig);
reconfigure();
m_ready = true;
}
template <typename Slot>
void TabBox::key(const char *actionName, Slot slot, const QKeySequence &shortcut)
{
QAction *a = new QAction(this);
a->setProperty("componentName", QStringLiteral(KWIN_NAME));
a->setObjectName(QString::fromUtf8(actionName));
a->setText(i18n(actionName));
KGlobalAccel::self()->setShortcut(a, QList<QKeySequence>() << shortcut);
input()->registerShortcut(shortcut, a, TabBox::self(), slot);
auto cuts = KGlobalAccel::self()->shortcut(a);
globalShortcutChanged(a, cuts.isEmpty() ? QKeySequence() : cuts.first());
}
static const char s_windows[] = I18N_NOOP("Walk Through Windows");
static const char s_windowsRev[] = I18N_NOOP("Walk Through Windows (Reverse)");
static const char s_windowsAlt[] = I18N_NOOP("Walk Through Windows Alternative");
static const char s_windowsAltRev[] = I18N_NOOP("Walk Through Windows Alternative (Reverse)");
static const char s_app[] = I18N_NOOP("Walk Through Windows of Current Application");
static const char s_appRev[] = I18N_NOOP("Walk Through Windows of Current Application (Reverse)");
static const char s_appAlt[] = I18N_NOOP("Walk Through Windows of Current Application Alternative");
static const char s_appAltRev[] = I18N_NOOP("Walk Through Windows of Current Application Alternative (Reverse)");
static const char s_desktops[] = I18N_NOOP("Walk Through Desktops");
static const char s_desktopsRev[] = I18N_NOOP("Walk Through Desktops (Reverse)");
static const char s_desktopList[] = I18N_NOOP("Walk Through Desktop List");
static const char s_desktopListRev[] = I18N_NOOP("Walk Through Desktop List (Reverse)");
void TabBox::initShortcuts()
{
key(s_windows, &TabBox::slotWalkThroughWindows, Qt::ALT + Qt::Key_Tab);
key(s_windowsRev, &TabBox::slotWalkBackThroughWindows, Qt::ALT + Qt::SHIFT + Qt::Key_Backtab);
key(s_app, &TabBox::slotWalkThroughCurrentAppWindows, Qt::ALT + Qt::Key_QuoteLeft);
key(s_appRev, &TabBox::slotWalkBackThroughCurrentAppWindows, Qt::ALT + Qt::Key_AsciiTilde);
key(s_windowsAlt, &TabBox::slotWalkThroughWindowsAlternative);
key(s_windowsAltRev, &TabBox::slotWalkBackThroughWindowsAlternative);
key(s_appAlt, &TabBox::slotWalkThroughCurrentAppWindowsAlternative);
key(s_appAltRev, &TabBox::slotWalkBackThroughCurrentAppWindowsAlternative);
key(s_desktops, &TabBox::slotWalkThroughDesktops);
key(s_desktopsRev, &TabBox::slotWalkBackThroughDesktops);
key(s_desktopList, &TabBox::slotWalkThroughDesktopList);
key(s_desktopListRev, &TabBox::slotWalkBackThroughDesktopList);
connect(KGlobalAccel::self(), &KGlobalAccel::globalShortcutChanged, this, &TabBox::globalShortcutChanged);
}
void TabBox::globalShortcutChanged(QAction *action, const QKeySequence &seq)
{
if (qstrcmp(qPrintable(action->objectName()), s_windows) == 0) {
m_cutWalkThroughWindows = seq;
} else if (qstrcmp(qPrintable(action->objectName()), s_windowsRev) == 0) {
m_cutWalkThroughWindowsReverse = seq;
} else if (qstrcmp(qPrintable(action->objectName()), s_app) == 0) {
m_cutWalkThroughCurrentAppWindows = seq;
} else if (qstrcmp(qPrintable(action->objectName()), s_appRev) == 0) {
m_cutWalkThroughCurrentAppWindowsReverse = seq;
} else if (qstrcmp(qPrintable(action->objectName()), s_windowsAlt) == 0) {
m_cutWalkThroughWindowsAlternative = seq;
} else if (qstrcmp(qPrintable(action->objectName()), s_windowsAltRev) == 0) {
m_cutWalkThroughWindowsAlternativeReverse = seq;
} else if (qstrcmp(qPrintable(action->objectName()), s_appAlt) == 0) {
m_cutWalkThroughCurrentAppWindowsAlternative = seq;
} else if (qstrcmp(qPrintable(action->objectName()), s_appAltRev) == 0) {
m_cutWalkThroughCurrentAppWindowsAlternativeReverse = seq;
} else if (qstrcmp(qPrintable(action->objectName()), s_desktops) == 0) {
m_cutWalkThroughDesktops = seq;
} else if (qstrcmp(qPrintable(action->objectName()), s_desktopsRev) == 0) {
m_cutWalkThroughDesktopsReverse = seq;
} else if (qstrcmp(qPrintable(action->objectName()), s_desktopList) == 0) {
m_cutWalkThroughDesktopList = seq;
} else if (qstrcmp(qPrintable(action->objectName()), s_desktopListRev) == 0) {
m_cutWalkThroughDesktopListReverse = seq;
}
}
/*!
Sets the current mode to \a mode, either TabBoxDesktopListMode or TabBoxWindowsMode
\sa mode()
*/
void TabBox::setMode(TabBoxMode mode)
{
m_tabBoxMode = mode;
switch(mode) {
case TabBoxWindowsMode:
m_tabBox->setConfig(m_defaultConfig);
break;
case TabBoxWindowsAlternativeMode:
m_tabBox->setConfig(m_alternativeConfig);
break;
case TabBoxCurrentAppWindowsMode:
m_tabBox->setConfig(m_defaultCurrentApplicationConfig);
break;
case TabBoxCurrentAppWindowsAlternativeMode:
m_tabBox->setConfig(m_alternativeCurrentApplicationConfig);
break;
case TabBoxDesktopMode:
m_tabBox->setConfig(m_desktopConfig);
break;
case TabBoxDesktopListMode:
m_tabBox->setConfig(m_desktopListConfig);
break;
}
}
/*!
Resets the tab box to display the active client in TabBoxWindowsMode, or the
current desktop in TabBoxDesktopListMode
*/
void TabBox::reset(bool partial_reset)
{
switch(m_tabBox->config().tabBoxMode()) {
case TabBoxConfig::ClientTabBox:
m_tabBox->createModel(partial_reset);
if (!partial_reset) {
if (Workspace::self()->activeClient())
setCurrentClient(Workspace::self()->activeClient());
// it's possible that the active client is not part of the model
// in that case the index is invalid
if (!m_tabBox->currentIndex().isValid())
setCurrentIndex(m_tabBox->first());
} else {
if (!m_tabBox->currentIndex().isValid() || !m_tabBox->client(m_tabBox->currentIndex()))
setCurrentIndex(m_tabBox->first());
}
break;
case TabBoxConfig::DesktopTabBox:
m_tabBox->createModel();
if (!partial_reset)
setCurrentDesktop(VirtualDesktopManager::self()->current());
break;
}
emit tabBoxUpdated();
}
/*!
Shows the next or previous item, depending on \a next
*/
void TabBox::nextPrev(bool next)
{
setCurrentIndex(m_tabBox->nextPrev(next), false);
emit tabBoxUpdated();
}
/*!
Returns the currently displayed client ( only works in TabBoxWindowsMode ).
Returns 0 if no client is displayed.
*/
AbstractClient* TabBox::currentClient()
{
if (TabBoxClientImpl* client = static_cast< TabBoxClientImpl* >(m_tabBox->client(m_tabBox->currentIndex()))) {
if (!Workspace::self()->hasClient(client->client()))
return nullptr;
return client->client();
} else
return nullptr;
}
/*!
Returns the list of clients potentially displayed ( only works in
TabBoxWindowsMode ).
Returns an empty list if no clients are available.
*/
QList<AbstractClient*> TabBox::currentClientList()
{
TabBoxClientList list = m_tabBox->clientList();
QList<AbstractClient*> ret;
foreach (const QWeakPointer<TabBoxClient> &clientPointer, list) {
QSharedPointer<TabBoxClient> client = clientPointer.toStrongRef();
if (!client)
continue;
if (const TabBoxClientImpl* c = static_cast< const TabBoxClientImpl* >(client.data()))
ret.append(c->client());
}
return ret;
}
/*!
Returns the currently displayed virtual desktop ( only works in
TabBoxDesktopListMode )
Returns -1 if no desktop is displayed.
*/
int TabBox::currentDesktop()
{
return m_tabBox->desktop(m_tabBox->currentIndex());
}
/*!
Returns the list of desktops potentially displayed ( only works in
TabBoxDesktopListMode )
Returns an empty list if no are available.
*/
QList< int > TabBox::currentDesktopList()
{
return m_tabBox->desktopList();
}
/*!
Change the currently selected client, and notify the effects.
\sa setCurrentDesktop()
*/
void TabBox::setCurrentClient(AbstractClient *newClient)
{
setCurrentIndex(m_tabBox->index(newClient->tabBoxClient()));
}
/*!
Change the currently selected desktop, and notify the effects.
\sa setCurrentClient()
*/
void TabBox::setCurrentDesktop(int newDesktop)
{
setCurrentIndex(m_tabBox->desktopIndex(newDesktop));
}
void TabBox::setCurrentIndex(QModelIndex index, bool notifyEffects)
{
if (!index.isValid())
return;
m_tabBox->setCurrentIndex(index);
if (notifyEffects) {
emit tabBoxUpdated();
}
}
/*!
Notify effects that the tab box is being shown, and only display the
default tab box QFrame if no effect has referenced the tab box.
*/
void TabBox::show()
{
emit tabBoxAdded(m_tabBoxMode);
if (isDisplayed()) {
m_isShown = false;
return;
}
workspace()->setShowingDesktop(false);
reference();
m_isShown = true;
m_tabBox->show();
}
/*!
Notify effects that the tab box is being hidden.
*/
void TabBox::hide(bool abort)
{
m_delayedShowTimer.stop();
if (m_isShown) {
m_isShown = false;
unreference();
}
emit tabBoxClosed();
if (isDisplayed())
qCDebug(KWIN_TABBOX) << "Tab box was not properly closed by an effect";
m_tabBox->hide(abort);
Xcb::sync();
}
void TabBox::reconfigure()
{
KSharedConfigPtr c = kwinApp()->config();
KConfigGroup config = c->group("TabBox");
loadConfig(c->group("TabBox"), m_defaultConfig);
loadConfig(c->group("TabBoxAlternative"), m_alternativeConfig);
m_defaultCurrentApplicationConfig = m_defaultConfig;
m_defaultCurrentApplicationConfig.setClientApplicationsMode(TabBoxConfig::AllWindowsCurrentApplication);
m_alternativeCurrentApplicationConfig = m_alternativeConfig;
m_alternativeCurrentApplicationConfig.setClientApplicationsMode(TabBoxConfig::AllWindowsCurrentApplication);
m_tabBox->setConfig(m_defaultConfig);
m_delayShow = config.readEntry<bool>("ShowDelay", true);
m_delayShowTime = config.readEntry<int>("DelayTime", 90);
const QString defaultDesktopLayout = QStringLiteral("org.kde.breeze.desktop");
m_desktopConfig.setLayoutName(config.readEntry("DesktopLayout", defaultDesktopLayout));
m_desktopListConfig.setLayoutName(config.readEntry("DesktopListLayout", defaultDesktopLayout));
QList<ElectricBorder> *borders = &m_borderActivate;
QString borderConfig = QStringLiteral("BorderActivate");
for (int i = 0; i < 2; ++i) {
foreach (ElectricBorder border, *borders) {
ScreenEdges::self()->unreserve(border, this);
}
borders->clear();
QStringList list = config.readEntry(borderConfig, QStringList());
foreach (const QString &s, list) {
bool ok;
const int i = s.toInt(&ok);
if (!ok)
continue;
borders->append(ElectricBorder(i));
ScreenEdges::self()->reserve(ElectricBorder(i), this, "toggle");
}
borders = &m_borderAlternativeActivate;
borderConfig = QStringLiteral("BorderAlternativeActivate");
}
}
void TabBox::loadConfig(const KConfigGroup& config, TabBoxConfig& tabBoxConfig)
{
tabBoxConfig.setClientDesktopMode(TabBoxConfig::ClientDesktopMode(
config.readEntry<int>("DesktopMode", TabBoxConfig::defaultDesktopMode())));
tabBoxConfig.setClientActivitiesMode(TabBoxConfig::ClientActivitiesMode(
config.readEntry<int>("ActivitiesMode", TabBoxConfig::defaultActivitiesMode())));
tabBoxConfig.setClientApplicationsMode(TabBoxConfig::ClientApplicationsMode(
config.readEntry<int>("ApplicationsMode", TabBoxConfig::defaultApplicationsMode())));
tabBoxConfig.setClientMinimizedMode(TabBoxConfig::ClientMinimizedMode(
config.readEntry<int>("MinimizedMode", TabBoxConfig::defaultMinimizedMode())));
tabBoxConfig.setShowDesktopMode(TabBoxConfig::ShowDesktopMode(
config.readEntry<int>("ShowDesktopMode", TabBoxConfig::defaultShowDesktopMode())));
tabBoxConfig.setClientMultiScreenMode(TabBoxConfig::ClientMultiScreenMode(
config.readEntry<int>("MultiScreenMode", TabBoxConfig::defaultMultiScreenMode())));
tabBoxConfig.setClientSwitchingMode(TabBoxConfig::ClientSwitchingMode(
config.readEntry<int>("SwitchingMode", TabBoxConfig::defaultSwitchingMode())));
tabBoxConfig.setShowTabBox(config.readEntry<bool>("ShowTabBox",
TabBoxConfig::defaultShowTabBox()));
tabBoxConfig.setHighlightWindows(config.readEntry<bool>("HighlightWindows",
TabBoxConfig::defaultHighlightWindow()));
tabBoxConfig.setLayoutName(config.readEntry<QString>("LayoutName", TabBoxConfig::defaultLayoutName()));
}
/*!
Rikkus: please document! (Matthias)
Ok, here's the docs :)
You call delayedShow() instead of show() directly.
If the 'ShowDelay' setting is false, show() is simply called.
Otherwise, we start a timer for the delay given in the settings and only
do a show() when it times out.
This means that you can alt-tab between windows and you don't see the
tab box immediately. Not only does this make alt-tabbing faster, it gives
less 'flicker' to the eyes. You don't need to see the tab box if you're
just quickly switching between 2 or 3 windows. It seems to work quite
nicely.
*/
void TabBox::delayedShow()
{
if (isDisplayed() || m_delayedShowTimer.isActive())
// already called show - no need to call it twice
return;
if (!m_delayShowTime) {
show();
return;
}
m_delayedShowTimer.setSingleShot(true);
m_delayedShowTimer.start(m_delayShowTime);
}
bool TabBox::handleMouseEvent(xcb_button_press_event_t *e)
{
xcb_allow_events(connection(), XCB_ALLOW_ASYNC_POINTER, XCB_CURRENT_TIME);
if (!m_isShown && isDisplayed()) {
// tabbox has been replaced, check effects
if (effects && static_cast<EffectsHandlerImpl*>(effects)->checkInputWindowEvent(e))
return true;
}
if ((e->response_type & ~0x80) == XCB_BUTTON_PRESS) {
// press outside Tabbox?
QPoint pos(e->root_x, e->root_y);
if ((!m_isShown && isDisplayed())
|| (!m_tabBox->containsPos(pos) &&
(e->detail == XCB_BUTTON_INDEX_1 || e->detail == XCB_BUTTON_INDEX_2 || e->detail == XCB_BUTTON_INDEX_3))) {
close(); // click outside closes tab
return true;
}
if (e->detail == XCB_BUTTON_INDEX_5 || e->detail == XCB_BUTTON_INDEX_4) {
// mouse wheel event
const QModelIndex index = m_tabBox->nextPrev(e->detail == XCB_BUTTON_INDEX_5);
if (index.isValid()) {
setCurrentIndex(index);
}
return true;
}
}
return false;
}
bool TabBox::handleMouseEvent(xcb_motion_notify_event_t *e)
{
xcb_allow_events(connection(), XCB_ALLOW_ASYNC_POINTER, XCB_CURRENT_TIME);
if (!m_isShown && isDisplayed()) {
// tabbox has been replaced, check effects
if (effects && static_cast<EffectsHandlerImpl*>(effects)->checkInputWindowEvent(e))
return true;
}
return false;
}
bool TabBox::handleMouseEvent(QMouseEvent *event)
{
if (!m_isShown && isDisplayed()) {
// tabbox has been replaced, check effects
if (effects && static_cast<EffectsHandlerImpl*>(effects)->checkInputWindowEvent(event)) {
return true;
}
}
switch (event->type()) {
case QEvent::MouseMove:
if (!m_tabBox->containsPos(event->globalPos())) {
// filter out all events which are not on the TabBox window.
// We don't want windows to react on the mouse events
return true;
}
return false;
case QEvent::MouseButtonPress:
if ((!m_isShown && isDisplayed()) || !m_tabBox->containsPos(event->globalPos())) {
close(); // click outside closes tab
return true;
}
// fall through
case QEvent::MouseButtonRelease:
default:
// we do not filter it out, the intenal filter takes care
return false;
}
return false;
}
bool TabBox::handleWheelEvent(QWheelEvent *event)
{
if (!m_isShown && isDisplayed()) {
// tabbox has been replaced, check effects
if (effects && static_cast<EffectsHandlerImpl*>(effects)->checkInputWindowEvent(event)) {
return true;
}
}
if (event->angleDelta().y() == 0) {
return false;
}
const QModelIndex index = m_tabBox->nextPrev(event->angleDelta().y() > 0);
if (index.isValid()) {
setCurrentIndex(index);
}
return true;
}
void TabBox::grabbedKeyEvent(QKeyEvent* event)
{
emit tabBoxKeyEvent(event);
if (!m_isShown && isDisplayed()) {
// tabbox has been replaced, check effects
return;
}
if (m_noModifierGrab) {
if (event->key() == Qt::Key_Enter || event->key() == Qt::Key_Return || event->key() == Qt::Key_Space) {
accept();
return;
}
}
m_tabBox->grabbedKeyEvent(event);
}
struct KeySymbolsDeleter
{
static inline void cleanup(xcb_key_symbols_t *symbols)
{
xcb_key_symbols_free(symbols);
}
};
/*!
Handles alt-tab / control-tab
*/
static bool areKeySymXsDepressed(bool bAll, const uint keySyms[], int nKeySyms) {
qCDebug(KWIN_TABBOX) << "areKeySymXsDepressed: " << (bAll ? "all of " : "any of ") << nKeySyms;
Xcb::QueryKeymap keys;
QScopedPointer<xcb_key_symbols_t, KeySymbolsDeleter> symbols(xcb_key_symbols_alloc(connection()));
if (symbols.isNull() || !keys) {
return false;
}
const auto keymap = keys->keys;
for (int iKeySym = 0; iKeySym < nKeySyms; iKeySym++) {
uint keySymX = keySyms[ iKeySym ];
xcb_keycode_t *keyCodes = xcb_key_symbols_get_keycode(symbols.data(), keySymX);
if (!keyCodes) {
continue;
}
xcb_keycode_t keyCodeX = keyCodes[0];
free(keyCodes);
if (keyCodeX == XCB_NO_SYMBOL) {
continue;
}
int i = keyCodeX / 8;
char mask = 1 << (keyCodeX - (i * 8));
// Abort if bad index value,
if (i < 0 || i >= 32)
return false;
qCDebug(KWIN_TABBOX) << iKeySym << ": keySymX=0x" << QString::number(keySymX, 16)
<< " i=" << i << " mask=0x" << QString::number(mask, 16)
<< " keymap[i]=0x" << QString::number(keymap[i], 16);
// If ALL keys passed need to be depressed,
if (bAll) {
if ((keymap[i] & mask) == 0)
return false;
} else {
// If we are looking for ANY key press, and this key is depressed,
if (keymap[i] & mask)
return true;
}
}
// If we were looking for ANY key press, then none was found, return false,
// If we were looking for ALL key presses, then all were found, return true.
return bAll;
}
static bool areModKeysDepressedX11(const QKeySequence &seq)
{
uint rgKeySyms[10];
int nKeySyms = 0;
int mod = seq[seq.count()-1] & Qt::KeyboardModifierMask;
if (mod & Qt::SHIFT) {
rgKeySyms[nKeySyms++] = XK_Shift_L;
rgKeySyms[nKeySyms++] = XK_Shift_R;
}
if (mod & Qt::CTRL) {
rgKeySyms[nKeySyms++] = XK_Control_L;
rgKeySyms[nKeySyms++] = XK_Control_R;
}
if (mod & Qt::ALT) {
rgKeySyms[nKeySyms++] = XK_Alt_L;
rgKeySyms[nKeySyms++] = XK_Alt_R;
}
if (mod & Qt::META) {
// It would take some code to determine whether the Win key
// is associated with Super or Meta, so check for both.
// See bug #140023 for details.
rgKeySyms[nKeySyms++] = XK_Super_L;
rgKeySyms[nKeySyms++] = XK_Super_R;
rgKeySyms[nKeySyms++] = XK_Meta_L;
rgKeySyms[nKeySyms++] = XK_Meta_R;
}
return areKeySymXsDepressed(false, rgKeySyms, nKeySyms);
}
static bool areModKeysDepressedWayland(const QKeySequence &seq)
{
const int mod = seq[seq.count()-1] & Qt::KeyboardModifierMask;
const Qt::KeyboardModifiers mods = input()->modifiersRelevantForGlobalShortcuts();
if ((mod & Qt::SHIFT) && mods.testFlag(Qt::ShiftModifier)) {
return true;
}
if ((mod & Qt::CTRL) && mods.testFlag(Qt::ControlModifier)) {
return true;
}
if ((mod & Qt::ALT) && mods.testFlag(Qt::AltModifier)) {
return true;
}
if ((mod & Qt::META) && mods.testFlag(Qt::MetaModifier)) {
return true;
}
return false;
}
static bool areModKeysDepressed(const QKeySequence& seq) {
if (seq.isEmpty())
return false;
if (kwinApp()->shouldUseWaylandForCompositing()) {
return areModKeysDepressedWayland(seq);
} else {
return areModKeysDepressedX11(seq);
}
}
void TabBox::navigatingThroughWindows(bool forward, const QKeySequence &shortcut, TabBoxMode mode)
{
if (!m_ready || isGrabbed() || !Workspace::self()->isOnCurrentHead()) {
return;
}
if (!options->focusPolicyIsReasonable()) {
//ungrabXKeyboard(); // need that because of accelerator raw mode
// CDE style raise / lower
CDEWalkThroughWindows(forward);
} else {
if (areModKeysDepressed(shortcut)) {
if (startKDEWalkThroughWindows(mode))
KDEWalkThroughWindows(forward);
} else
// if the shortcut has no modifiers, don't show the tabbox,
// don't grab, but simply go to the next window
KDEOneStepThroughWindows(forward, mode);
}
}
void TabBox::slotWalkThroughWindows()
{
navigatingThroughWindows(true, m_cutWalkThroughWindows, TabBoxWindowsMode);
}
void TabBox::slotWalkBackThroughWindows()
{
navigatingThroughWindows(false, m_cutWalkThroughWindowsReverse, TabBoxWindowsMode);
}
void TabBox::slotWalkThroughWindowsAlternative()
{
navigatingThroughWindows(true, m_cutWalkThroughWindowsAlternative, TabBoxWindowsAlternativeMode);
}
void TabBox::slotWalkBackThroughWindowsAlternative()
{
navigatingThroughWindows(false, m_cutWalkThroughWindowsAlternativeReverse, TabBoxWindowsAlternativeMode);
}
void TabBox::slotWalkThroughCurrentAppWindows()
{
navigatingThroughWindows(true, m_cutWalkThroughCurrentAppWindows, TabBoxCurrentAppWindowsMode);
}
void TabBox::slotWalkBackThroughCurrentAppWindows()
{
navigatingThroughWindows(false, m_cutWalkThroughCurrentAppWindowsReverse, TabBoxCurrentAppWindowsMode);
}
void TabBox::slotWalkThroughCurrentAppWindowsAlternative()
{
navigatingThroughWindows(true, m_cutWalkThroughCurrentAppWindowsAlternative, TabBoxCurrentAppWindowsAlternativeMode);
}
void TabBox::slotWalkBackThroughCurrentAppWindowsAlternative()
{
navigatingThroughWindows(false, m_cutWalkThroughCurrentAppWindowsAlternativeReverse, TabBoxCurrentAppWindowsAlternativeMode);
}
void TabBox::slotWalkThroughDesktops()
{
if (!m_ready || isGrabbed() || !Workspace::self()->isOnCurrentHead()) {
return;
}
if (areModKeysDepressed(m_cutWalkThroughDesktops)) {
if (startWalkThroughDesktops())
walkThroughDesktops(true);
} else {
oneStepThroughDesktops(true);
}
}
void TabBox::slotWalkBackThroughDesktops()
{
if (!m_ready || isGrabbed() || !Workspace::self()->isOnCurrentHead()) {
return;
}
if (areModKeysDepressed(m_cutWalkThroughDesktopsReverse)) {
if (startWalkThroughDesktops())
walkThroughDesktops(false);
} else {
oneStepThroughDesktops(false);
}
}
void TabBox::slotWalkThroughDesktopList()
{
if (!m_ready || isGrabbed() || !Workspace::self()->isOnCurrentHead()) {
return;
}
if (areModKeysDepressed(m_cutWalkThroughDesktopList)) {
if (startWalkThroughDesktopList())
walkThroughDesktops(true);
} else {
oneStepThroughDesktopList(true);
}
}
void TabBox::slotWalkBackThroughDesktopList()
{
if (!m_ready || isGrabbed() || !Workspace::self()->isOnCurrentHead()) {
return;
}
if (areModKeysDepressed(m_cutWalkThroughDesktopListReverse)) {
if (startWalkThroughDesktopList())
walkThroughDesktops(false);
} else {
oneStepThroughDesktopList(false);
}
}
void TabBox::shadeActivate(AbstractClient *c)
{
if ((c->shadeMode() == ShadeNormal || c->shadeMode() == ShadeHover) && options->isShadeHover())
c->setShade(ShadeActivated);
}
bool TabBox::toggle(ElectricBorder eb)
{
if (!options->focusPolicyIsReasonable())
return false; // not supported.
if (isDisplayed()) {
accept();
return true;
}
if (!establishTabBoxGrab())
return false;
m_noModifierGrab = m_tabGrab = true;
if (m_borderAlternativeActivate.contains(eb))
setMode(TabBoxWindowsAlternativeMode);
else
setMode(TabBoxWindowsMode);
reset();
show();
return true;
}
bool TabBox::startKDEWalkThroughWindows(TabBoxMode mode)
{
if (!establishTabBoxGrab())
return false;
m_tabGrab = true;
m_noModifierGrab = false;
setMode(mode);
reset();
return true;
}
bool TabBox::startWalkThroughDesktops(TabBoxMode mode)
{
if (!establishTabBoxGrab())
return false;
m_desktopGrab = true;
m_noModifierGrab = false;
setMode(mode);
reset();
return true;
}
bool TabBox::startWalkThroughDesktops()
{
return startWalkThroughDesktops(TabBoxDesktopMode);
}
bool TabBox::startWalkThroughDesktopList()
{
return startWalkThroughDesktops(TabBoxDesktopListMode);
}
void TabBox::KDEWalkThroughWindows(bool forward)
{
nextPrev(forward);
delayedShow();
}
void TabBox::walkThroughDesktops(bool forward)
{
nextPrev(forward);
delayedShow();
}
void TabBox::CDEWalkThroughWindows(bool forward)
{
Client* c = nullptr;
// this function find the first suitable client for unreasonable focus
// policies - the topmost one, with some exceptions (can't be keepabove/below,
// otherwise it gets stuck on them)
// Q_ASSERT(Workspace::self()->block_stacking_updates == 0);
for (int i = Workspace::self()->stackingOrder().size() - 1;
i >= 0 ;
--i) {
Client* it = qobject_cast<Client*>(Workspace::self()->stackingOrder().at(i));
if (it && it->isOnCurrentActivity() && it->isOnCurrentDesktop() && !it->isSpecialWindow()
&& it->isShown(false) && it->wantsTabFocus()
&& !it->keepAbove() && !it->keepBelow()) {
c = it;
break;
}
}
Client* nc = c;
bool options_traverse_all;
{
KConfigGroup group(kwinApp()->config(), "TabBox");
options_traverse_all = group.readEntry("TraverseAll", false);
}
Client* firstClient = nullptr;
do {
nc = forward ? nextClientStatic(nc) : previousClientStatic(nc);
if (!firstClient) {
// When we see our first client for the second time,
// it's time to stop.
firstClient = nc;
} else if (nc == firstClient) {
// No candidates found.
nc = nullptr;
break;
}
} while (nc && nc != c &&
((!options_traverse_all && !nc->isOnDesktop(currentDesktop())) ||
nc->isMinimized() || !nc->wantsTabFocus() || nc->keepAbove() || nc->keepBelow() || !nc->isOnCurrentActivity()));
if (nc) {
if (c && c != nc)
Workspace::self()->lowerClient(c);
if (options->focusPolicyIsReasonable()) {
Workspace::self()->activateClient(nc);
shadeActivate(nc);
} else {
if (!nc->isOnDesktop(currentDesktop()))
setCurrentDesktop(nc->desktop());
Workspace::self()->raiseClient(nc);
}
}
}
void TabBox::KDEOneStepThroughWindows(bool forward, TabBoxMode mode)
{
setMode(mode);
reset();
nextPrev(forward);
if (AbstractClient* c = currentClient()) {
Workspace::self()->activateClient(c);
shadeActivate(c);
}
}
void TabBox::oneStepThroughDesktops(bool forward, TabBoxMode mode)
{
setMode(mode);
reset();
nextPrev(forward);
if (currentDesktop() != -1)
setCurrentDesktop(currentDesktop());
}
void TabBox::oneStepThroughDesktops(bool forward)
{
oneStepThroughDesktops(forward, TabBoxDesktopMode);
}
void TabBox::oneStepThroughDesktopList(bool forward)
{
oneStepThroughDesktops(forward, TabBoxDesktopListMode);
}
/*!
Handles holding alt-tab / control-tab
*/
void TabBox::keyPress(int keyQt)
{
enum Direction { Backward = -1, Steady = 0, Forward = 1 };
Direction direction(Steady);
auto contains = [](const QKeySequence &shortcut, int key) -> bool {
for (int i = 0; i < shortcut.count(); ++i) {
if (shortcut[i] == key) {
return true;
}
}
return false;
};
// tests whether a shortcut matches and handles pitfalls on ShiftKey invocation
auto directionFor = [keyQt, contains](const QKeySequence &forward, const QKeySequence &backward) -> Direction {
if (contains(forward, keyQt))
return Forward;
if (contains(backward, keyQt))
return Backward;
if (!(keyQt & Qt::ShiftModifier))
return Steady;
// Before testing the unshifted key (Ctrl+A vs. Ctrl+Shift+a etc.), see whether this is +Shift+Tab
// and check that against +Shift+Backtab (as well)
Qt::KeyboardModifiers mods = Qt::ShiftModifier|Qt::ControlModifier|Qt::AltModifier|Qt::MetaModifier|Qt::KeypadModifier|Qt::GroupSwitchModifier;
mods &= keyQt;
if ((keyQt & ~mods) == Qt::Key_Tab) {
if (contains(forward, mods | Qt::Key_Backtab))
return Forward;
if (contains(backward, mods | Qt::Key_Backtab))
return Backward;
}
// if the shortcuts do not match, try matching again after filtering the shift key from keyQt
// it is needed to handle correctly the ALT+~ shorcut for example as it is coded as ALT+SHIFT+~ in keyQt
if (contains(forward, keyQt & ~Qt::ShiftModifier))
return Forward;
if (contains(backward, keyQt & ~Qt::ShiftModifier))
return Backward;
return Steady;
};
if (m_tabGrab) {
static const int ModeCount = 4;
static const TabBoxMode modes[ModeCount] = {
TabBoxWindowsMode, TabBoxWindowsAlternativeMode,
TabBoxCurrentAppWindowsMode, TabBoxCurrentAppWindowsAlternativeMode
};
static const QKeySequence cuts[2*ModeCount] = {
// forward
m_cutWalkThroughWindows, m_cutWalkThroughWindowsAlternative,
m_cutWalkThroughCurrentAppWindows, m_cutWalkThroughCurrentAppWindowsAlternative,
// backward
m_cutWalkThroughWindowsReverse, m_cutWalkThroughWindowsAlternativeReverse,
m_cutWalkThroughCurrentAppWindowsReverse, m_cutWalkThroughCurrentAppWindowsAlternativeReverse
};
bool testedCurrent = false; // in case of collision, prefer to stay in the current mode
int i = 0, j = 0;
while (true) {
if (!testedCurrent && modes[i] != mode()) {
++j;
i = (i+1) % ModeCount;
continue;
}
if (testedCurrent && modes[i] == mode()) {
break;
}
testedCurrent = true;
direction = directionFor(cuts[i], cuts[i+ModeCount]);
if (direction != Steady) {
if (modes[i] != mode()) {
accept(false);
setMode(modes[i]);
auto replayWithChangedTabboxMode = [this, direction]() {
reset();
nextPrev(direction == Forward);
};
QTimer::singleShot(50, this, replayWithChangedTabboxMode);
}
break;
} else if (++j > ModeCount) { // guarding counter for invalid modes
qCDebug(KWIN_TABBOX) << "Invalid TabBoxMode";
return;
}
i = (i+1) % ModeCount;
}
if (direction != Steady) {
qCDebug(KWIN_TABBOX) << "== " << cuts[i].toString() << " or " << cuts[i+ModeCount].toString();
KDEWalkThroughWindows(direction == Forward);
}
} else if (m_desktopGrab) {
direction = directionFor(m_cutWalkThroughDesktops, m_cutWalkThroughDesktopsReverse);
if (direction == Steady)
direction = directionFor(m_cutWalkThroughDesktopList, m_cutWalkThroughDesktopListReverse);
if (direction != Steady)
walkThroughDesktops(direction == Forward);
}
if (m_desktopGrab || m_tabGrab) {
if (((keyQt & ~Qt::KeyboardModifierMask) == Qt::Key_Escape) && direction == Steady) {
// if Escape is part of the shortcut, don't cancel
close(true);
} else if (direction == Steady) {
QKeyEvent* event = new QKeyEvent(QEvent::KeyPress, keyQt & ~Qt::KeyboardModifierMask, Qt::NoModifier);
grabbedKeyEvent(event);
}
}
}
void TabBox::close(bool abort)
{
if (isGrabbed()) {
removeTabBoxGrab();
}
hide(abort);
m_tabGrab = false;
m_desktopGrab = false;
m_noModifierGrab = false;
}
void TabBox::accept(bool closeTabBox)
{
AbstractClient *c = currentClient();
if (closeTabBox)
close();
if (c) {
Workspace::self()->activateClient(c);
shadeActivate(c);
if (c->isDesktop())
Workspace::self()->setShowingDesktop(!Workspace::self()->showingDesktop());
}
}
/*!
Handles alt-tab / control-tab releasing
*/
void TabBox::keyRelease(const xcb_key_release_event_t *ev)
{
if (m_noModifierGrab) {
return;
}
unsigned int mk = ev->state &
(KKeyServer::modXShift() |
KKeyServer::modXCtrl() |
KKeyServer::modXAlt() |
KKeyServer::modXMeta());
// ev.state is state before the key release, so just checking mk being 0 isn't enough
// using XQueryPointer() also doesn't seem to work well, so the check that all
// modifiers are released: only one modifier is active and the currently released
// key is this modifier - if yes, release the grab
int mod_index = -1;
for (int i = XCB_MAP_INDEX_SHIFT;
i <= XCB_MAP_INDEX_5;
++i)
if ((mk & (1 << i)) != 0) {
if (mod_index >= 0)
return;
mod_index = i;
}
bool release = false;
if (mod_index == -1)
release = true;
else {
Xcb::ModifierMapping xmk;
if (xmk) {
xcb_keycode_t *keycodes = xmk.keycodes();
const int maxIndex = xmk.size();
for (int i = 0; i < xmk->keycodes_per_modifier; ++i) {
const int index = xmk->keycodes_per_modifier * mod_index + i;
if (index >= maxIndex) {
continue;
}
if (keycodes[index] == ev->detail) {
release = true;
}
}
}
}
if (!release)
return;
if (m_tabGrab) {
bool old_control_grab = m_desktopGrab;
accept();
m_desktopGrab = old_control_grab;
}
if (m_desktopGrab) {
bool old_tab_grab = m_tabGrab;
int desktop = currentDesktop();
close();
m_tabGrab = old_tab_grab;
if (desktop != -1) {
setCurrentDesktop(desktop);
VirtualDesktopManager::self()->setCurrent(desktop);
}
}
}
void TabBox::modifiersReleased()
{
if (m_noModifierGrab) {
return;
}
if (m_tabGrab) {
bool old_control_grab = m_desktopGrab;
accept();
m_desktopGrab = old_control_grab;
}
if (m_desktopGrab) {
bool old_tab_grab = m_tabGrab;
int desktop = currentDesktop();
close();
m_tabGrab = old_tab_grab;
if (desktop != -1) {
setCurrentDesktop(desktop);
VirtualDesktopManager::self()->setCurrent(desktop);
}
}
}
int TabBox::nextDesktopStatic(int iDesktop) const
{
DesktopNext functor;
return functor(iDesktop, true);
}
int TabBox::previousDesktopStatic(int iDesktop) const
{
DesktopPrevious functor;
return functor(iDesktop, true);
}
/*!
auxiliary functions to travers all clients according to the static
order. Useful for the CDE-style Alt-tab feature.
*/
Client* TabBox::nextClientStatic(Client* c) const
{
if (!c || Workspace::self()->clientList().isEmpty())
return 0;
int pos = Workspace::self()->clientList().indexOf(c);
if (pos == -1)
return Workspace::self()->clientList().first();
++pos;
if (pos == Workspace::self()->clientList().count())
return Workspace::self()->clientList().first();
return Workspace::self()->clientList()[ pos ];
}
/*!
auxiliary functions to travers all clients according to the static
order. Useful for the CDE-style Alt-tab feature.
*/
Client* TabBox::previousClientStatic(Client* c) const
{
if (!c || Workspace::self()->clientList().isEmpty())
return 0;
int pos = Workspace::self()->clientList().indexOf(c);
if (pos == -1)
return Workspace::self()->clientList().last();
if (pos == 0)
return Workspace::self()->clientList().last();
--pos;
return Workspace::self()->clientList()[ pos ];
}
bool TabBox::establishTabBoxGrab()
{
if (kwinApp()->shouldUseWaylandForCompositing()) {
m_forcedGlobalMouseGrab = true;
return true;
}
updateXTime();
if (!grabXKeyboard())
return false;
// Don't try to establish a global mouse grab using XGrabPointer, as that would prevent
// using Alt+Tab while DND (#44972). However force passive grabs on all windows
// in order to catch MouseRelease events and close the tabbox (#67416).
// All clients already have passive grabs in their wrapper windows, so check only
// the active client, which may not have it.
assert(!m_forcedGlobalMouseGrab);
m_forcedGlobalMouseGrab = true;
if (Workspace::self()->activeClient() != nullptr)
Workspace::self()->activeClient()->updateMouseGrab();
return true;
}
void TabBox::removeTabBoxGrab()
{
if (kwinApp()->shouldUseWaylandForCompositing()) {
m_forcedGlobalMouseGrab = false;
return;
}
updateXTime();
ungrabXKeyboard();
assert(m_forcedGlobalMouseGrab);
m_forcedGlobalMouseGrab = false;
if (Workspace::self()->activeClient() != nullptr)
Workspace::self()->activeClient()->updateMouseGrab();
}
} // namespace TabBox
} // namespace
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