kwin/events.cpp
Martin Gräßlin b967527db3 Use XCB to resolve the X11 Extensions
The extension handling is removed from kwinglobals and moved into the
xcbutils in KWin core in namespace KWin::Xcb. The motivation for this
change is that the Extensions are only used in KWin core and are marked
as internal. So there is no need to have them in the library.

What remains in Extensions are the non-native pixmaps. This will be
removed once we are on Qt 5 as QPixmap can no longer reference an XPixmap.

The remaining code in kwinglobals also still initialize the XLib versions
of extensions emitting events. It seems like there are no XEvents emitted
if not done so even if the extension is correctly initialized with xcb.
This needs to be removed once the event handling is ported over to xcb.

REVIEW: 107832
2013-01-22 07:50:03 +01:00

1690 lines
62 KiB
C++

/********************************************************************
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>
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/>.
*********************************************************************/
/*
This file contains things relevant to handling incoming events.
*/
#include <config-X11.h>
#include "client.h"
#include "workspace.h"
#include "atoms.h"
#ifdef KWIN_BUILD_TABBOX
#include "tabbox.h"
#endif
#include "group.h"
#include "overlaywindow.h"
#include "rules.h"
#include "unmanaged.h"
#include "useractions.h"
#include "effects.h"
#include "xcbutils.h"
#include <QWhatsThis>
#include <QApplication>
#include <QtGui/QDesktopWidget>
#include <kkeyserver.h>
#include <X11/extensions/shape.h>
#include <X11/extensions/Xrandr.h>
#include <X11/Xatom.h>
#include <QX11Info>
#include "composite.h"
namespace KWin
{
extern int currentRefreshRate();
// ****************************************
// WinInfo
// ****************************************
WinInfo::WinInfo(Client * c, Display * display, Window window,
Window rwin, const unsigned long pr[], int pr_size)
: NETWinInfo2(display, window, rwin, pr, pr_size, NET::WindowManager), m_client(c)
{
}
void WinInfo::changeDesktop(int desktop)
{
m_client->workspace()->sendClientToDesktop(m_client, desktop, true);
}
void WinInfo::changeFullscreenMonitors(NETFullscreenMonitors topology)
{
m_client->updateFullscreenMonitors(topology);
}
void WinInfo::changeState(unsigned long state, unsigned long mask)
{
mask &= ~NET::Sticky; // KWin doesn't support large desktops, ignore
mask &= ~NET::Hidden; // clients are not allowed to change this directly
state &= mask; // for safety, clear all other bits
if ((mask & NET::FullScreen) != 0 && (state & NET::FullScreen) == 0)
m_client->setFullScreen(false, false);
if ((mask & NET::Max) == NET::Max)
m_client->setMaximize(state & NET::MaxVert, state & NET::MaxHoriz);
else if (mask & NET::MaxVert)
m_client->setMaximize(state & NET::MaxVert, m_client->maximizeMode() & Client::MaximizeHorizontal);
else if (mask & NET::MaxHoriz)
m_client->setMaximize(m_client->maximizeMode() & Client::MaximizeVertical, state & NET::MaxHoriz);
if (mask & NET::Shaded)
m_client->setShade(state & NET::Shaded ? ShadeNormal : ShadeNone);
if (mask & NET::KeepAbove)
m_client->setKeepAbove((state & NET::KeepAbove) != 0);
if (mask & NET::KeepBelow)
m_client->setKeepBelow((state & NET::KeepBelow) != 0);
if (mask & NET::SkipTaskbar)
m_client->setSkipTaskbar((state & NET::SkipTaskbar) != 0, true);
if (mask & NET::SkipPager)
m_client->setSkipPager((state & NET::SkipPager) != 0);
if (mask & NET::DemandsAttention)
m_client->demandAttention((state & NET::DemandsAttention) != 0);
if (mask & NET::Modal)
m_client->setModal((state & NET::Modal) != 0);
// unsetting fullscreen first, setting it last (because e.g. maximize works only for !isFullScreen() )
if ((mask & NET::FullScreen) != 0 && (state & NET::FullScreen) != 0)
m_client->setFullScreen(true, false);
}
void WinInfo::disable()
{
m_client = NULL; // only used when the object is passed to Deleted
}
// ****************************************
// RootInfo
// ****************************************
RootInfo::RootInfo(Workspace* ws, Display *dpy, Window w, const char *name, unsigned long pr[], int pr_num, int scr)
: NETRootInfo(dpy, w, name, pr, pr_num, scr)
{
workspace = ws;
}
void RootInfo::changeNumberOfDesktops(int n)
{
VirtualDesktopManager::self()->setCount(n);
}
void RootInfo::changeCurrentDesktop(int d)
{
VirtualDesktopManager::self()->setCurrent(d);
}
void RootInfo::changeActiveWindow(Window w, NET::RequestSource src, Time timestamp, Window active_window)
{
if (Client* c = workspace->findClient(WindowMatchPredicate(w))) {
if (timestamp == CurrentTime)
timestamp = c->userTime();
if (src != NET::FromApplication && src != FromTool)
src = NET::FromTool;
if (src == NET::FromTool)
workspace->activateClient(c, true); // force
else if (c == workspace->mostRecentlyActivatedClient()) {
return; // WORKAROUND? With > 1 plasma activities, we cause this ourselves. bug #240673
} else { // NET::FromApplication
Client* c2;
if (workspace->allowClientActivation(c, timestamp, false, true))
workspace->activateClient(c);
// if activation of the requestor's window would be allowed, allow activation too
else if (active_window != None
&& (c2 = workspace->findClient(WindowMatchPredicate(active_window))) != NULL
&& workspace->allowClientActivation(c2,
timestampCompare(timestamp, c2->userTime() > 0 ? timestamp : c2->userTime()), false, true)) {
workspace->activateClient(c);
} else
c->demandAttention();
}
}
}
void RootInfo::restackWindow(Window w, RequestSource src, Window above, int detail, Time timestamp)
{
if (Client* c = workspace->findClient(WindowMatchPredicate(w))) {
if (timestamp == CurrentTime)
timestamp = c->userTime();
if (src != NET::FromApplication && src != FromTool)
src = NET::FromTool;
c->restackWindow(above, detail, src, timestamp, true);
}
}
void RootInfo::gotTakeActivity(Window w, Time timestamp, long flags)
{
if (Client* c = workspace->findClient(WindowMatchPredicate(w)))
workspace->handleTakeActivity(c, timestamp, flags);
}
void RootInfo::closeWindow(Window w)
{
Client* c = workspace->findClient(WindowMatchPredicate(w));
if (c)
c->closeWindow();
}
void RootInfo::moveResize(Window w, int x_root, int y_root, unsigned long direction)
{
Client* c = workspace->findClient(WindowMatchPredicate(w));
if (c) {
updateXTime(); // otherwise grabbing may have old timestamp - this message should include timestamp
c->NETMoveResize(x_root, y_root, (Direction)direction);
}
}
void RootInfo::moveResizeWindow(Window w, int flags, int x, int y, int width, int height)
{
Client* c = workspace->findClient(WindowMatchPredicate(w));
if (c)
c->NETMoveResizeWindow(flags, x, y, width, height);
}
void RootInfo::gotPing(Window w, Time timestamp)
{
if (Client* c = workspace->findClient(WindowMatchPredicate(w)))
c->gotPing(timestamp);
}
void RootInfo::changeShowingDesktop(bool showing)
{
workspace->setShowingDesktop(showing);
}
// ****************************************
// Workspace
// ****************************************
/*!
Handles workspace specific XEvents
*/
bool Workspace::workspaceEvent(XEvent * e)
{
if (effects && static_cast< EffectsHandlerImpl* >(effects)->hasKeyboardGrab()
&& (e->type == KeyPress || e->type == KeyRelease))
return false; // let Qt process it, it'll be intercepted again in eventFilter()
if (e->type == PropertyNotify || e->type == ClientMessage) {
unsigned long dirty[ NETRootInfo::PROPERTIES_SIZE ];
rootInfo->event(e, dirty, NETRootInfo::PROPERTIES_SIZE);
if (dirty[ NETRootInfo::PROTOCOLS ] & NET::DesktopNames)
VirtualDesktopManager::self()->save();
if (dirty[ NETRootInfo::PROTOCOLS2 ] & NET::WM2DesktopLayout)
VirtualDesktopManager::self()->updateLayout();
}
// events that should be handled before Clients can get them
switch(e->type) {
case ButtonPress:
case ButtonRelease:
was_user_interaction = true;
// fallthrough
case MotionNotify:
#ifdef KWIN_BUILD_TABBOX
if (tabBox()->isGrabbed()) {
return tab_box->handleMouseEvent(e);
}
#endif
if (effects && static_cast<EffectsHandlerImpl*>(effects)->checkInputWindowEvent(e))
return true;
break;
case KeyPress: {
was_user_interaction = true;
int keyQt;
KKeyServer::xEventToQt(e, &keyQt);
// kDebug(125) << "Workspace::keyPress( " << keyQt << " )";
if (movingClient) {
movingClient->keyPressEvent(keyQt);
return true;
}
#ifdef KWIN_BUILD_TABBOX
if (tabBox()->isGrabbed()) {
tabBox()->keyPress(keyQt);
return true;
}
#endif
break;
}
case KeyRelease:
was_user_interaction = true;
#ifdef KWIN_BUILD_TABBOX
if (tabBox()->isGrabbed()) {
tabBox()->keyRelease(e->xkey);
return true;
}
#endif
break;
case ConfigureNotify:
if (e->xconfigure.event == rootWindow())
x_stacking_dirty = true;
break;
};
if (Client* c = findClient(WindowMatchPredicate(e->xany.window))) {
if (c->windowEvent(e))
return true;
} else if (Client* c = findClient(WrapperIdMatchPredicate(e->xany.window))) {
if (c->windowEvent(e))
return true;
} else if (Client* c = findClient(FrameIdMatchPredicate(e->xany.window))) {
if (c->windowEvent(e))
return true;
} else if (Client *c = findClient(InputIdMatchPredicate(e->xany.window))) {
if (c->windowEvent(e))
return true;
} else if (Unmanaged* c = findUnmanaged(WindowMatchPredicate(e->xany.window))) {
if (c->windowEvent(e))
return true;
} else {
Window special = findSpecialEventWindow(e);
if (special != None)
if (Client* c = findClient(WindowMatchPredicate(special))) {
if (c->windowEvent(e))
return true;
}
// We want to pass root window property events to effects
if (e->type == PropertyNotify && e->xany.window == rootWindow()) {
XPropertyEvent* re = &e->xproperty;
emit propertyNotify(re->atom);
}
}
if (movingClient != NULL && movingClient->moveResizeGrabWindow() == e->xany.window
&& (e->type == MotionNotify || e->type == ButtonPress || e->type == ButtonRelease)) {
if (movingClient->windowEvent(e))
return true;
}
switch(e->type) {
case CreateNotify:
if (e->xcreatewindow.parent == rootWindow() &&
!QWidget::find(e->xcreatewindow.window) &&
!e->xcreatewindow.override_redirect) {
// see comments for allowClientActivation()
Time t = xTime();
XChangeProperty(display(), e->xcreatewindow.window,
atoms->kde_net_wm_user_creation_time, XA_CARDINAL,
32, PropModeReplace, (unsigned char *)&t, 1);
}
break;
case UnmapNotify: {
return (e->xunmap.event != e->xunmap.window); // hide wm typical event from Qt
}
case ReparentNotify: {
//do not confuse Qt with these events. After all, _we_ are the
//window manager who does the reparenting.
return true;
}
case DestroyNotify: {
return false;
}
case MapRequest: {
updateXTime();
if (Client* c = findClient(WindowMatchPredicate(e->xmaprequest.window))) {
// e->xmaprequest.window is different from e->xany.window
// TODO this shouldn't be necessary now
c->windowEvent(e);
updateFocusChains(c, FocusChainUpdate);
} else if ( true /*|| e->xmaprequest.parent != root */ ) {
// NOTICE don't check for the parent being the root window, this breaks when some app unmaps
// a window, changes something and immediately maps it back, without giving KWin
// a chance to reparent it back to root
// since KWin can get MapRequest only for root window children and
// children of WindowWrapper (=clients), the check is AFAIK useless anyway
// NOTICE: The save-set support in Client::mapRequestEvent() actually requires that
// this code doesn't check the parent to be root.
if (!createClient(e->xmaprequest.window, false))
XMapRaised(display(), e->xmaprequest.window);
}
return true;
}
case MapNotify: {
if (e->xmap.override_redirect) {
Unmanaged* c = findUnmanaged(WindowMatchPredicate(e->xmap.window));
if (c == NULL)
c = createUnmanaged(e->xmap.window);
if (c)
return c->windowEvent(e);
}
return (e->xmap.event != e->xmap.window); // hide wm typical event from Qt
}
case EnterNotify: {
if (QWhatsThis::inWhatsThisMode()) {
QWidget* w = QWidget::find(e->xcrossing.window);
if (w)
QWhatsThis::leaveWhatsThisMode();
}
#ifdef KWIN_BUILD_SCREENEDGES
if (m_screenEdge.isEntered(e))
return true;
#endif
break;
}
case LeaveNotify: {
if (!QWhatsThis::inWhatsThisMode())
break;
// TODO is this cliente ever found, given that client events are searched above?
Client* c = findClient(FrameIdMatchPredicate(e->xcrossing.window));
if (c && e->xcrossing.detail != NotifyInferior)
QWhatsThis::leaveWhatsThisMode();
break;
}
case ConfigureRequest: {
if (e->xconfigurerequest.parent == rootWindow()) {
XWindowChanges wc;
wc.border_width = e->xconfigurerequest.border_width;
wc.x = e->xconfigurerequest.x;
wc.y = e->xconfigurerequest.y;
wc.width = e->xconfigurerequest.width;
wc.height = e->xconfigurerequest.height;
wc.sibling = None;
wc.stack_mode = Above;
unsigned int value_mask = e->xconfigurerequest.value_mask
& (CWX | CWY | CWWidth | CWHeight | CWBorderWidth);
XConfigureWindow(display(), e->xconfigurerequest.window, value_mask, &wc);
return true;
}
break;
}
case FocusIn:
if (e->xfocus.window == rootWindow()
&& (e->xfocus.detail == NotifyDetailNone || e->xfocus.detail == NotifyPointerRoot)) {
updateXTime(); // focusToNull() uses xTime(), which is old now (FocusIn has no timestamp)
Window focus;
int revert;
XGetInputFocus(display(), &focus, &revert);
if (focus == None || focus == PointerRoot) {
//kWarning( 1212 ) << "X focus set to None/PointerRoot, reseting focus" ;
Client *c = mostRecentlyActivatedClient();
if (c != NULL)
requestFocus(c, true);
else if (activateNextClient(NULL))
; // ok, activated
else
focusToNull();
}
}
// fall through
case FocusOut:
return true; // always eat these, they would tell Qt that KWin is the active app
case ClientMessage:
#ifdef KWIN_BUILD_SCREENEDGES
if (m_screenEdge.isEntered(e))
return true;
#endif
break;
case Expose:
if (compositing()
&& (e->xexpose.window == rootWindow() // root window needs repainting
|| (m_compositor->overlayWindow() != None && e->xexpose.window == m_compositor->overlayWindow()))) { // overlay needs repainting
m_compositor->addRepaint(e->xexpose.x, e->xexpose.y, e->xexpose.width, e->xexpose.height);
}
break;
case VisibilityNotify:
if (compositing() && m_compositor->overlayWindow() != None && e->xvisibility.window == m_compositor->overlayWindow()) {
bool was_visible = m_compositor->isOverlayWindowVisible();
m_compositor->setOverlayWindowVisibility((e->xvisibility.state != VisibilityFullyObscured));
if (!was_visible && m_compositor->isOverlayWindowVisible()) {
// hack for #154825
m_compositor->addRepaintFull();
QTimer::singleShot(2000, m_compositor, SLOT(addRepaintFull()));
}
m_compositor->scheduleRepaint();
}
break;
default:
if (e->type == Xcb::Extensions::self()->randrNotifyEvent() && Xcb::Extensions::self()->isRandrAvailable()) {
XRRUpdateConfiguration(e);
if (compositing()) {
// desktopResized() should take care of when the size or
// shape of the desktop has changed, but we also want to
// catch refresh rate changes
if (m_compositor->xrrRefreshRate() != currentRefreshRate())
m_compositor->setCompositeResetTimer(0);
}
} else if (e->type == Xcb::Extensions::self()->syncAlarmNotifyEvent() && Xcb::Extensions::self()->isSyncAvailable()) {
#ifdef HAVE_XSYNC
foreach (Client * c, clients)
c->syncEvent(reinterpret_cast< XSyncAlarmNotifyEvent* >(e));
foreach (Client * c, desktops)
c->syncEvent(reinterpret_cast< XSyncAlarmNotifyEvent* >(e));
#endif
}
break;
}
return false;
}
// Used only to filter events that need to be processed by Qt first
// (e.g. keyboard input to be composed), otherwise events are
// handle by the XEvent filter above
bool Workspace::workspaceEvent(QEvent* e)
{
if ((e->type() == QEvent::KeyPress || e->type() == QEvent::KeyRelease || e->type() == QEvent::ShortcutOverride)
&& effects && static_cast< EffectsHandlerImpl* >(effects)->hasKeyboardGrab()) {
static_cast< EffectsHandlerImpl* >(effects)->grabbedKeyboardEvent(static_cast< QKeyEvent* >(e));
return true;
}
return false;
}
// Some events don't have the actual window which caused the event
// as e->xany.window (e.g. ConfigureRequest), but as some other
// field in the XEvent structure.
Window Workspace::findSpecialEventWindow(XEvent* e)
{
switch(e->type) {
case CreateNotify:
return e->xcreatewindow.window;
case DestroyNotify:
return e->xdestroywindow.window;
case UnmapNotify:
return e->xunmap.window;
case MapNotify:
return e->xmap.window;
case MapRequest:
return e->xmaprequest.window;
case ReparentNotify:
return e->xreparent.window;
case ConfigureNotify:
return e->xconfigure.window;
case GravityNotify:
return e->xgravity.window;
case ConfigureRequest:
return e->xconfigurerequest.window;
case CirculateNotify:
return e->xcirculate.window;
case CirculateRequest:
return e->xcirculaterequest.window;
default:
return None;
};
}
// ****************************************
// Client
// ****************************************
/*!
General handler for XEvents concerning the client window
*/
bool Client::windowEvent(XEvent* e)
{
if (e->xany.window == window()) { // avoid doing stuff on frame or wrapper
unsigned long dirty[ 2 ];
double old_opacity = opacity();
info->event(e, dirty, 2); // pass through the NET stuff
if ((dirty[ WinInfo::PROTOCOLS ] & NET::WMName) != 0)
fetchName();
if ((dirty[ WinInfo::PROTOCOLS ] & NET::WMIconName) != 0)
fetchIconicName();
if ((dirty[ WinInfo::PROTOCOLS ] & NET::WMStrut) != 0
|| (dirty[ WinInfo::PROTOCOLS2 ] & NET::WM2ExtendedStrut) != 0) {
workspace()->updateClientArea();
}
if ((dirty[ WinInfo::PROTOCOLS ] & NET::WMIcon) != 0)
getIcons();
// Note there's a difference between userTime() and info->userTime()
// info->userTime() is the value of the property, userTime() also includes
// updates of the time done by KWin (ButtonPress on windowrapper etc.).
if ((dirty[ WinInfo::PROTOCOLS2 ] & NET::WM2UserTime) != 0) {
workspace()->setWasUserInteraction();
updateUserTime(info->userTime());
}
if ((dirty[ WinInfo::PROTOCOLS2 ] & NET::WM2StartupId) != 0)
startupIdChanged();
if (dirty[ WinInfo::PROTOCOLS ] & NET::WMIconGeometry) {
if (demandAttentionKNotifyTimer != NULL)
demandAttentionKNotify();
}
if (dirty[ WinInfo::PROTOCOLS2 ] & NET::WM2Opacity) {
if (compositing()) {
addRepaintFull();
emit opacityChanged(this, old_opacity);
} else {
// forward to the frame if there's possibly another compositing manager running
NETWinInfo2 i(display(), frameId(), rootWindow(), 0);
i.setOpacity(info->opacity());
}
}
if (dirty[ WinInfo::PROTOCOLS2 ] & NET::WM2FrameOverlap) {
// ### Inform the decoration
}
}
switch(e->type) {
case UnmapNotify:
unmapNotifyEvent(&e->xunmap);
break;
case DestroyNotify:
destroyNotifyEvent(&e->xdestroywindow);
break;
case MapRequest:
// this one may pass the event to workspace
return mapRequestEvent(&e->xmaprequest);
case ConfigureRequest:
configureRequestEvent(&e->xconfigurerequest);
break;
case PropertyNotify:
propertyNotifyEvent(&e->xproperty);
break;
case KeyPress:
updateUserTime();
workspace()->setWasUserInteraction();
break;
case ButtonPress:
updateUserTime();
workspace()->setWasUserInteraction();
buttonPressEvent(e->xbutton.window, e->xbutton.button, e->xbutton.state,
e->xbutton.x, e->xbutton.y, e->xbutton.x_root, e->xbutton.y_root);
break;
case KeyRelease:
// don't update user time on releases
// e.g. if the user presses Alt+F2, the Alt release
// would appear as user input to the currently active window
break;
case ButtonRelease:
// don't update user time on releases
// e.g. if the user presses Alt+F2, the Alt release
// would appear as user input to the currently active window
buttonReleaseEvent(e->xbutton.window, e->xbutton.button, e->xbutton.state,
e->xbutton.x, e->xbutton.y, e->xbutton.x_root, e->xbutton.y_root);
break;
case MotionNotify:
motionNotifyEvent(e->xmotion.window, e->xmotion.state,
e->xmotion.x, e->xmotion.y, e->xmotion.x_root, e->xmotion.y_root);
workspace()->updateFocusMousePosition(QPoint(e->xmotion.x_root, e->xmotion.y_root));
break;
case EnterNotify:
enterNotifyEvent(&e->xcrossing);
// MotionNotify is guaranteed to be generated only if the mouse
// move start and ends in the window; for cases when it only
// starts or only ends there, Enter/LeaveNotify are generated.
// Fake a MotionEvent in such cases to make handle of mouse
// events simpler (Qt does that too).
motionNotifyEvent(e->xcrossing.window, e->xcrossing.state,
e->xcrossing.x, e->xcrossing.y, e->xcrossing.x_root, e->xcrossing.y_root);
workspace()->updateFocusMousePosition(QPoint(e->xcrossing.x_root, e->xcrossing.y_root));
break;
case LeaveNotify:
motionNotifyEvent(e->xcrossing.window, e->xcrossing.state,
e->xcrossing.x, e->xcrossing.y, e->xcrossing.x_root, e->xcrossing.y_root);
leaveNotifyEvent(&e->xcrossing);
// not here, it'd break following enter notify handling
// workspace()->updateFocusMousePosition( QPoint( e->xcrossing.x_root, e->xcrossing.y_root ));
break;
case FocusIn:
focusInEvent(&e->xfocus);
break;
case FocusOut:
focusOutEvent(&e->xfocus);
break;
case ReparentNotify:
break;
case ClientMessage:
clientMessageEvent(&e->xclient);
break;
case ColormapChangeMask:
if (e->xany.window == window()) {
cmap = e->xcolormap.colormap;
if (isActive())
workspace()->updateColormap();
}
break;
default:
if (e->xany.window == window()) {
if (e->type == Xcb::Extensions::self()->shapeNotifyEvent()) {
detectShape(window()); // workaround for #19644
updateShape();
}
}
if (e->xany.window == frameId()) {
if (e->type == Xcb::Extensions::self()->damageNotifyEvent())
damageNotifyEvent(reinterpret_cast< XDamageNotifyEvent* >(e));
}
break;
}
return true; // eat all events
}
/*!
Handles map requests of the client window
*/
bool Client::mapRequestEvent(XMapRequestEvent* e)
{
if (e->window != window()) {
// Special support for the save-set feature, which is a bit broken.
// If there's a window from one client embedded in another one,
// e.g. using XEMBED, and the embedder suddenly loses its X connection,
// save-set will reparent the embedded window to its closest ancestor
// that will remains. Unfortunately, with reparenting window managers,
// this is not the root window, but the frame (or in KWin's case,
// it's the wrapper for the client window). In this case,
// the wrapper will get ReparentNotify for a window it won't know,
// which will be ignored, and then it gets MapRequest, as save-set
// always maps. Returning true here means that Workspace::workspaceEvent()
// will handle this MapRequest and manage this window (i.e. act as if
// it was reparented to root window).
if (e->parent == wrapperId())
return false;
return true; // no messing with frame etc.
}
// also copied in clientMessage()
if (isMinimized())
unminimize();
if (isShade())
setShade(ShadeNone);
if (!isOnCurrentDesktop()) {
if (workspace()->allowClientActivation(this))
workspace()->activateClient(this);
else
demandAttention();
}
return true;
}
/*!
Handles unmap notify events of the client window
*/
void Client::unmapNotifyEvent(XUnmapEvent* e)
{
if (e->window != window())
return;
if (e->event != wrapperId()) {
// most probably event from root window when initially reparenting
bool ignore = true;
if (e->event == rootWindow() && e->send_event)
ignore = false; // XWithdrawWindow()
if (ignore)
return;
}
releaseWindow();
}
void Client::destroyNotifyEvent(XDestroyWindowEvent* e)
{
if (e->window != window())
return;
destroyClient();
}
/*!
Handles client messages for the client window
*/
void Client::clientMessageEvent(XClientMessageEvent* e)
{
if (e->window != window())
return; // ignore frame/wrapper
// WM_STATE
if (e->message_type == atoms->kde_wm_change_state) {
bool avoid_animation = (e->data.l[ 1 ]);
if (e->data.l[ 0 ] == IconicState)
minimize();
else if (e->data.l[ 0 ] == NormalState) {
// copied from mapRequest()
if (isMinimized())
unminimize(avoid_animation);
if (isShade())
setShade(ShadeNone);
if (!isOnCurrentDesktop()) {
if (workspace()->allowClientActivation(this))
workspace()->activateClient(this);
else
demandAttention();
}
}
} else if (e->message_type == atoms->wm_change_state) {
if (e->data.l[0] == IconicState)
minimize();
return;
}
}
/*!
Handles configure requests of the client window
*/
void Client::configureRequestEvent(XConfigureRequestEvent* e)
{
if (e->window != window())
return; // ignore frame/wrapper
if (isResize() || isMove())
return; // we have better things to do right now
if (fullscreen_mode == FullScreenNormal) { // refuse resizing of fullscreen windows
// but allow resizing fullscreen hacks in order to let them cancel fullscreen mode
sendSyntheticConfigureNotify();
return;
}
if (isSplash()) { // no manipulations with splashscreens either
sendSyntheticConfigureNotify();
return;
}
if (e->value_mask & CWBorderWidth) {
// first, get rid of a window border
XWindowChanges wc;
unsigned int value_mask = 0;
wc.border_width = 0;
value_mask = CWBorderWidth;
XConfigureWindow(display(), window(), value_mask, & wc);
}
if (e->value_mask & (CWX | CWY | CWHeight | CWWidth))
configureRequest(e->value_mask, e->x, e->y, e->width, e->height, 0, false);
if (e->value_mask & CWStackMode)
restackWindow(e->above, e->detail, NET::FromApplication, userTime(), false);
// Sending a synthetic configure notify always is fine, even in cases where
// the ICCCM doesn't require this - it can be though of as 'the WM decided to move
// the window later'. The client should not cause that many configure request,
// so this should not have any significant impact. With user moving/resizing
// the it should be optimized though (see also Client::setGeometry()/plainResize()/move()).
sendSyntheticConfigureNotify();
// SELI TODO accept configure requests for isDesktop windows (because kdesktop
// may get XRANDR resize event before kwin), but check it's still at the bottom?
}
/*!
Handles property changes of the client window
*/
void Client::propertyNotifyEvent(XPropertyEvent* e)
{
Toplevel::propertyNotifyEvent(e);
if (e->window != window())
return; // ignore frame/wrapper
switch(e->atom) {
case XA_WM_NORMAL_HINTS:
getWmNormalHints();
break;
case XA_WM_NAME:
fetchName();
break;
case XA_WM_ICON_NAME:
fetchIconicName();
break;
case XA_WM_TRANSIENT_FOR:
readTransient();
break;
case XA_WM_HINTS:
getWMHints();
getIcons(); // because KWin::icon() uses WMHints as fallback
break;
default:
if (e->atom == atoms->wm_protocols)
getWindowProtocols();
else if (e->atom == atoms->motif_wm_hints)
getMotifHints();
else if (e->atom == atoms->net_wm_sync_request_counter)
getSyncCounter();
else if (e->atom == atoms->activities)
checkActivities();
else if (e->atom == atoms->kde_net_wm_block_compositing)
updateCompositeBlocking(true);
else if (e->atom == atoms->kde_first_in_window_list)
updateFirstInTabBox();
break;
}
}
void Client::enterNotifyEvent(XCrossingEvent* e)
{
if (e->window != frameId())
return; // care only about entering the whole frame
#define MOUSE_DRIVEN_FOCUS (!options->focusPolicyIsReasonable() || \
(options->focusPolicy() == Options::FocusFollowsMouse && options->isNextFocusPrefersMouse()))
if (e->mode == NotifyNormal || (e->mode == NotifyUngrab && MOUSE_DRIVEN_FOCUS)) {
if (options->isShadeHover()) {
cancelShadeHoverTimer();
if (isShade()) {
shadeHoverTimer = new QTimer(this);
connect(shadeHoverTimer, SIGNAL(timeout()), this, SLOT(shadeHover()));
shadeHoverTimer->setSingleShot(true);
shadeHoverTimer->start(options->shadeHoverInterval());
}
}
#undef MOUSE_DRIVEN_FOCUS
if (options->focusPolicy() == Options::ClickToFocus || workspace()->userActionsMenu()->isShown())
return;
QPoint currentPos(e->x_root, e->y_root);
if (options->isAutoRaise() && !isDesktop() &&
!isDock() && workspace()->focusChangeEnabled() &&
currentPos != workspace()->focusMousePosition() &&
workspace()->topClientOnDesktop(VirtualDesktopManager::self()->current(),
options->isSeparateScreenFocus() ? screen() : -1) != this) {
delete autoRaiseTimer;
autoRaiseTimer = new QTimer(this);
connect(autoRaiseTimer, SIGNAL(timeout()), this, SLOT(autoRaise()));
autoRaiseTimer->setSingleShot(true);
autoRaiseTimer->start(options->autoRaiseInterval());
}
if (isDesktop() || isDock())
return;
// for FocusFollowsMouse, change focus only if the mouse has actually been moved, not if the focus
// change came because of window changes (e.g. closing a window) - #92290
if (options->focusPolicy() != Options::FocusFollowsMouse
|| currentPos != workspace()->focusMousePosition()) {
workspace()->requestDelayFocus(this);
}
return;
}
}
void Client::leaveNotifyEvent(XCrossingEvent* e)
{
if (e->window != frameId())
return; // care only about leaving the whole frame
if (e->mode == NotifyNormal) {
if (!buttonDown) {
mode = PositionCenter;
updateCursor();
}
bool lostMouse = !rect().contains(QPoint(e->x, e->y));
// 'lostMouse' wouldn't work with e.g. B2 or Keramik, which have non-rectangular decorations
// (i.e. the LeaveNotify event comes before leaving the rect and no LeaveNotify event
// comes after leaving the rect) - so lets check if the pointer is really outside the window
// TODO this still sucks if a window appears above this one - it should lose the mouse
// if this window is another client, but not if it's a popup ... maybe after KDE3.1 :(
// (repeat after me 'AARGHL!')
if (!lostMouse && e->detail != NotifyInferior) {
int d1, d2, d3, d4;
unsigned int d5;
Window w, child;
if (XQueryPointer(display(), frameId(), &w, &child, &d1, &d2, &d3, &d4, &d5) == False
|| child == None)
lostMouse = true; // really lost the mouse
}
if (lostMouse) {
cancelAutoRaise();
workspace()->cancelDelayFocus();
cancelShadeHoverTimer();
if (shade_mode == ShadeHover && !moveResizeMode && !buttonDown) {
shadeHoverTimer = new QTimer(this);
connect(shadeHoverTimer, SIGNAL(timeout()), this, SLOT(shadeUnhover()));
shadeHoverTimer->setSingleShot(true);
shadeHoverTimer->start(options->shadeHoverInterval());
}
}
if (options->focusPolicy() == Options::FocusStrictlyUnderMouse && isActive() && lostMouse) {
workspace()->requestDelayFocus(0);
}
return;
}
}
#define XCapL KKeyServer::modXLock()
#define XNumL KKeyServer::modXNumLock()
#define XScrL KKeyServer::modXScrollLock()
void Client::grabButton(int modifier)
{
unsigned int mods[ 8 ] = {
0, XCapL, XNumL, XNumL | XCapL,
XScrL, XScrL | XCapL,
XScrL | XNumL, XScrL | XNumL | XCapL
};
for (int i = 0;
i < 8;
++i)
XGrabButton(display(), AnyButton,
modifier | mods[ i ],
wrapperId(), false, ButtonPressMask,
GrabModeSync, GrabModeAsync, None, None);
}
void Client::ungrabButton(int modifier)
{
unsigned int mods[ 8 ] = {
0, XCapL, XNumL, XNumL | XCapL,
XScrL, XScrL | XCapL,
XScrL | XNumL, XScrL | XNumL | XCapL
};
for (int i = 0;
i < 8;
++i)
XUngrabButton(display(), AnyButton,
modifier | mods[ i ], wrapperId());
}
#undef XCapL
#undef XNumL
#undef XScrL
/*
Releases the passive grab for some modifier combinations when a
window becomes active. This helps broken X programs that
missinterpret LeaveNotify events in grab mode to work properly
(Motif, AWT, Tk, ...)
*/
void Client::updateMouseGrab()
{
if (workspace()->globalShortcutsDisabled()) {
XUngrabButton(display(), AnyButton, AnyModifier, wrapperId());
// keep grab for the simple click without modifiers if needed (see below)
bool not_obscured = workspace()->topClientOnDesktop(VirtualDesktopManager::self()->current(), -1, true, false) == this;
if (!(!options->isClickRaise() || not_obscured))
grabButton(None);
return;
}
if (isActive() && !workspace()->forcedGlobalMouseGrab()) { // see Workspace::establishTabBoxGrab()
// first grab all modifier combinations
XGrabButton(display(), AnyButton, AnyModifier, wrapperId(), false,
ButtonPressMask,
GrabModeSync, GrabModeAsync,
None, None);
// remove the grab for no modifiers only if the window
// is unobscured or if the user doesn't want click raise
// (it is unobscured if it the topmost in the unconstrained stacking order, i.e. it is
// the most recently raised window)
bool not_obscured = workspace()->topClientOnDesktop(VirtualDesktopManager::self()->current(), -1, true, false) == this;
if (!options->isClickRaise() || not_obscured)
ungrabButton(None);
else
grabButton(None);
ungrabButton(ShiftMask);
ungrabButton(ControlMask);
ungrabButton(ControlMask | ShiftMask);
} else {
XUngrabButton(display(), AnyButton, AnyModifier, wrapperId());
// simply grab all modifier combinations
XGrabButton(display(), AnyButton, AnyModifier, wrapperId(), false,
ButtonPressMask,
GrabModeSync, GrabModeAsync,
None, None);
}
}
// Qt propagates mouse events up the widget hierachy, which means events
// for the decoration window cannot be (easily) intercepted as X11 events
bool Client::eventFilter(QObject* o, QEvent* e)
{
if (decoration == NULL
|| o != decoration->widget())
return false;
if (e->type() == QEvent::MouseButtonPress) {
QMouseEvent* ev = static_cast< QMouseEvent* >(e);
return buttonPressEvent(decorationId(), qtToX11Button(ev->button()), qtToX11State(ev->buttons(), ev->modifiers()),
ev->x(), ev->y(), ev->globalX(), ev->globalY());
}
if (e->type() == QEvent::MouseButtonRelease) {
QMouseEvent* ev = static_cast< QMouseEvent* >(e);
return buttonReleaseEvent(decorationId(), qtToX11Button(ev->button()), qtToX11State(ev->buttons(), ev->modifiers()),
ev->x(), ev->y(), ev->globalX(), ev->globalY());
}
if (e->type() == QEvent::MouseMove) { // FRAME i fake z enter/leave?
QMouseEvent* ev = static_cast< QMouseEvent* >(e);
return motionNotifyEvent(decorationId(), qtToX11State(ev->buttons(), ev->modifiers()),
ev->x(), ev->y(), ev->globalX(), ev->globalY());
}
if (e->type() == QEvent::Wheel) {
QWheelEvent* ev = static_cast< QWheelEvent* >(e);
bool r = buttonPressEvent(decorationId(), ev->delta() > 0 ? Button4 : Button5, qtToX11State(ev->buttons(), ev->modifiers()),
ev->x(), ev->y(), ev->globalX(), ev->globalY());
r = r || buttonReleaseEvent(decorationId(), ev->delta() > 0 ? Button4 : Button5, qtToX11State(ev->buttons(), ev->modifiers()),
ev->x(), ev->y(), ev->globalX(), ev->globalY());
return r;
}
if (e->type() == QEvent::Resize) {
QResizeEvent* ev = static_cast< QResizeEvent* >(e);
// Filter out resize events that inform about size different than frame size.
// This will ensure that decoration->width() etc. and decoration->widget()->width() will be in sync.
// These events only seem to be delayed events from initial resizing before show() was called
// on the decoration widget.
if (ev->size() != (size() + QSize(padding_left + padding_right, padding_top + padding_bottom)))
return true;
// HACK: Avoid decoration redraw delays. On resize Qt sets WA_WStateConfigPending
// which delays all painting until a matching ConfigureNotify event comes.
// But this process itself is the window manager, so it's not needed
// to wait for that event, the geometry is known.
// Note that if Qt in the future changes how this flag is handled and what it
// triggers then this may potentionally break things. See mainly QETWidget::translateConfigEvent().
decoration->widget()->setAttribute(Qt::WA_WState_ConfigPending, false);
decoration->widget()->update();
return false;
}
return false;
}
static bool modKeyDown(int state) {
const uint keyModX = (options->keyCmdAllModKey() == Qt::Key_Meta) ?
KKeyServer::modXMeta() : KKeyServer::modXAlt();
return keyModX && (state & KKeyServer::accelModMaskX()) == keyModX;
}
// return value matters only when filtering events before decoration gets them
bool Client::buttonPressEvent(Window w, int button, int state, int x, int y, int x_root, int y_root)
{
if (buttonDown) {
if (w == wrapperId())
XAllowEvents(display(), SyncPointer, CurrentTime); //xTime());
return true;
}
if (w == wrapperId() || w == frameId() || w == decorationId() || w == inputId()) {
// FRAME neco s tohohle by se melo zpracovat, nez to dostane dekorace
updateUserTime();
workspace()->setWasUserInteraction();
const bool bModKeyHeld = modKeyDown(state);
if (isSplash()
&& button == Button1 && !bModKeyHeld) {
// hide splashwindow if the user clicks on it
hideClient(true);
if (w == wrapperId())
XAllowEvents(display(), SyncPointer, CurrentTime); //xTime());
return true;
}
Options::MouseCommand com = Options::MouseNothing;
bool was_action = false;
bool perform_handled = false;
if (bModKeyHeld) {
was_action = true;
switch(button) {
case Button1:
com = options->commandAll1();
break;
case Button2:
com = options->commandAll2();
break;
case Button3:
com = options->commandAll3();
break;
case Button4:
case Button5:
com = options->operationWindowMouseWheel(button == Button4 ? 120 : -120);
break;
}
} else {
// inactive inner window
if (!isActive() && w == wrapperId() && button < 6) {
was_action = true;
perform_handled = true;
switch(button) {
case Button1:
com = options->commandWindow1();
break;
case Button2:
com = options->commandWindow2();
break;
case Button3:
com = options->commandWindow3();
break;
case Button4:
case Button5:
com = options->commandWindowWheel();
break;
}
}
// active inner window
if (isActive() && w == wrapperId()
&& options->isClickRaise() && button < 4) { // exclude wheel
com = Options::MouseActivateRaiseAndPassClick;
was_action = true;
perform_handled = true;
}
}
if (was_action) {
bool replay = performMouseCommand(com, QPoint(x_root, y_root), perform_handled);
if (isSpecialWindow())
replay = true;
if (w == wrapperId()) // these can come only from a grab
XAllowEvents(display(), replay ? ReplayPointer : SyncPointer, CurrentTime); //xTime());
return true;
}
}
if (w == wrapperId()) { // these can come only from a grab
XAllowEvents(display(), ReplayPointer, CurrentTime); //xTime());
return true;
}
if (w == inputId()) {
x = x_root - geometry().x() + padding_left;
y = y_root - geometry().y() + padding_top;
// New API processes core events FIRST and only passes unused ones to the decoration
return processDecorationButtonPress(button, state, x, y, x_root, y_root, true);
}
if (w == decorationId()) {
if (dynamic_cast<KDecorationUnstable*>(decoration))
// New API processes core events FIRST and only passes unused ones to the decoration
return processDecorationButtonPress(button, state, x, y, x_root, y_root, true);
return false;
}
if (w == frameId())
processDecorationButtonPress(button, state, x, y, x_root, y_root);
return true;
}
// this function processes button press events only after decoration decides not to handle them,
// unlike buttonPressEvent(), which (when the window is decoration) filters events before decoration gets them
bool Client::processDecorationButtonPress(int button, int /*state*/, int x, int y, int x_root, int y_root,
bool ignoreMenu)
{
Options::MouseCommand com = Options::MouseNothing;
bool active = isActive();
if (!wantsInput()) // we cannot be active, use it anyway
active = true;
if (button == Button1)
com = active ? options->commandActiveTitlebar1() : options->commandInactiveTitlebar1();
else if (button == Button2)
com = active ? options->commandActiveTitlebar2() : options->commandInactiveTitlebar2();
else if (button == Button3)
com = active ? options->commandActiveTitlebar3() : options->commandInactiveTitlebar3();
if (button == Button1
&& com != Options::MouseOperationsMenu // actions where it's not possible to get the matching
&& com != Options::MouseMinimize // mouse release event
&& com != Options::MouseDragTab) {
mode = mousePosition(QPoint(x, y));
buttonDown = true;
moveOffset = QPoint(x - padding_left, y - padding_top);
invertedMoveOffset = rect().bottomRight() - moveOffset;
unrestrictedMoveResize = false;
startDelayedMoveResize();
updateCursor();
}
// In the new API the decoration may process the menu action to display an inactive tab's menu.
// If the event is unhandled then the core will create one for the active window in the group.
if (!ignoreMenu || com != Options::MouseOperationsMenu)
performMouseCommand(com, QPoint(x_root, y_root));
return !( // Return events that should be passed to the decoration in the new API
com == Options::MouseRaise ||
com == Options::MouseOperationsMenu ||
com == Options::MouseActivateAndRaise ||
com == Options::MouseActivate ||
com == Options::MouseActivateRaiseAndPassClick ||
com == Options::MouseActivateAndPassClick ||
com == Options::MouseDragTab ||
com == Options::MouseNothing);
}
// called from decoration
void Client::processMousePressEvent(QMouseEvent* e)
{
if (e->type() != QEvent::MouseButtonPress) {
kWarning(1212) << "processMousePressEvent()" ;
return;
}
int button;
switch(e->button()) {
case Qt::LeftButton:
button = Button1;
break;
case Qt::MidButton:
button = Button2;
break;
case Qt::RightButton:
button = Button3;
break;
default:
return;
}
processDecorationButtonPress(button, e->buttons(), e->x(), e->y(), e->globalX(), e->globalY());
}
// return value matters only when filtering events before decoration gets them
bool Client::buttonReleaseEvent(Window w, int /*button*/, int state, int x, int y, int x_root, int y_root)
{
if (w == decorationId() && !buttonDown)
return false;
if (w == wrapperId()) {
XAllowEvents(display(), SyncPointer, CurrentTime); //xTime());
return true;
}
if (w != frameId() && w != decorationId() && w != inputId() && w != moveResizeGrabWindow())
return true;
x = this->x(); // translate from grab window to local coords
y = this->y();
if ((state & (Button1Mask & Button2Mask & Button3Mask)) == 0) {
buttonDown = false;
stopDelayedMoveResize();
if (moveResizeMode) {
finishMoveResize(false);
// mouse position is still relative to old Client position, adjust it
QPoint mousepos(x_root - x + padding_left, y_root - y + padding_top);
mode = mousePosition(mousepos);
} else if (workspace()->decorationSupportsTabbing())
return false;
updateCursor();
}
return true;
}
static bool was_motion = false;
static Time next_motion_time = CurrentTime;
// Check whole incoming X queue for MotionNotify events
// checking whole queue is done by always returning False in the predicate.
// If there are more MotionNotify events in the queue, all until the last
// one may be safely discarded (if a ButtonRelease event comes, a MotionNotify
// will be faked from it, so there's no need to check other events).
// This helps avoiding being overloaded by being flooded from many events
// from the XServer.
static Bool motion_predicate(Display*, XEvent* ev, XPointer)
{
if (ev->type == MotionNotify) {
was_motion = true;
next_motion_time = ev->xmotion.time; // for setting time
}
return False;
}
static bool waitingMotionEvent()
{
// The queue doesn't need to be checked until the X timestamp
// of processes events reaches the timestamp of the last suitable
// MotionNotify event in the queue.
if (next_motion_time != CurrentTime
&& timestampCompare(xTime(), next_motion_time) < 0)
return true;
was_motion = false;
XSync(display(), False); // this helps to discard more MotionNotify events
XEvent dummy;
XCheckIfEvent(display(), &dummy, motion_predicate, NULL);
return was_motion;
}
// Checks if the mouse cursor is near the edge of the screen and if so activates quick tiling or maximization
void Client::checkQuickTilingMaximizationZones(int xroot, int yroot)
{
QuickTileMode mode = QuickTileNone;
for (int i=0; i<QApplication::desktop()->screenCount(); ++i) {
const QRect &area = QApplication::desktop()->screenGeometry(i);
if (!area.contains(QPoint(xroot, yroot)))
continue;
if (options->electricBorderTiling()) {
if (xroot <= area.x() + 20)
mode |= QuickTileLeft;
else if (xroot >= area.x() + area.width() - 20)
mode |= QuickTileRight;
}
if (mode != QuickTileNone) {
if (yroot <= area.y() + area.height() * options->electricBorderCornerRatio())
mode |= QuickTileTop;
else if (yroot >= area.y() + area.height() - area.height() * options->electricBorderCornerRatio())
mode |= QuickTileBottom;
} else if (options->electricBorderMaximize() && yroot <= area.y() + 5 && isMaximizable())
mode = QuickTileMaximize;
break; // no point in checking other screens to contain this... "point"...
}
setElectricBorderMode(mode);
setElectricBorderMaximizing(mode != QuickTileNone);
}
// return value matters only when filtering events before decoration gets them
bool Client::motionNotifyEvent(Window w, int state, int x, int y, int x_root, int y_root)
{
if (w != frameId() && w != decorationId() && w != inputId() && w != moveResizeGrabWindow())
return true; // care only about the whole frame
if (!buttonDown) {
QPoint mousePos(x, y);
if (w == frameId())
mousePos += QPoint(padding_left, padding_top);
if (w == inputId()) {
int x = x_root - geometry().x() + padding_left;
int y = y_root - geometry().y() + padding_top;
mousePos = QPoint(x, y);
}
Position newmode = modKeyDown(state) ? PositionCenter : mousePosition(mousePos);
if (newmode != mode) {
mode = newmode;
updateCursor();
}
// reset the timestamp for the optimization, otherwise with long passivity
// the option in waitingMotionEvent() may be always true
next_motion_time = CurrentTime;
return false;
}
if (w == moveResizeGrabWindow()) {
x = this->x(); // translate from grab window to local coords
y = this->y();
}
if (!waitingMotionEvent()) {
handleMoveResize(x, y, x_root, y_root);
if (isMove() && isResizable())
checkQuickTilingMaximizationZones(x_root, y_root);
}
return true;
}
void Client::focusInEvent(XFocusInEvent* e)
{
if (e->window != window())
return; // only window gets focus
if (e->mode == NotifyUngrab)
return; // we don't care
if (e->detail == NotifyPointer)
return; // we don't care
if (!isShown(false) || !isOnCurrentDesktop()) // we unmapped it, but it got focus meanwhile ->
return; // activateNextClient() already transferred focus elsewhere
// check if this client is in should_get_focus list or if activation is allowed
bool activate = workspace()->allowClientActivation(this, -1U, true);
workspace()->gotFocusIn(this); // remove from should_get_focus list
if (activate)
setActive(true);
else {
workspace()->restoreFocus();
demandAttention();
}
}
// When a client loses focus, FocusOut events are usually immediatelly
// followed by FocusIn events for another client that gains the focus
// (unless the focus goes to another screen, or to the nofocus widget).
// Without this check, the former focused client would have to be
// deactivated, and after that, the new one would be activated, with
// a short time when there would be no active client. This can cause
// flicker sometimes, e.g. when a fullscreen is shown, and focus is transferred
// from it to its transient, the fullscreen would be kept in the Active layer
// at the beginning and at the end, but not in the middle, when the active
// client would be temporarily none (see Client::belongToLayer() ).
// Therefore, the events queue is checked, whether it contains the matching
// FocusIn event, and if yes, deactivation of the previous client will
// be skipped, as activation of the new one will automatically deactivate
// previously active client.
static bool follows_focusin = false;
static bool follows_focusin_failed = false;
static Bool predicate_follows_focusin(Display*, XEvent* e, XPointer arg)
{
if (follows_focusin || follows_focusin_failed)
return False;
Client* c = (Client*) arg;
if (e->type == FocusIn && c->workspace()->findClient(WindowMatchPredicate(e->xfocus.window))) {
// found FocusIn
follows_focusin = true;
return False;
}
// events that may be in the queue before the FocusIn event that's being
// searched for
if (e->type == FocusIn || e->type == FocusOut || e->type == KeymapNotify)
return False;
follows_focusin_failed = true; // a different event - stop search
return False;
}
static bool check_follows_focusin(Client* c)
{
follows_focusin = follows_focusin_failed = false;
XEvent dummy;
// XCheckIfEvent() is used to make the search non-blocking, the predicate
// always returns False, so nothing is removed from the events queue.
// XPeekIfEvent() would block.
XCheckIfEvent(display(), &dummy, predicate_follows_focusin, (XPointer)c);
return follows_focusin;
}
void Client::focusOutEvent(XFocusOutEvent* e)
{
if (e->window != window())
return; // only window gets focus
if (e->mode == NotifyGrab)
return; // we don't care
if (isShade())
return; // here neither
if (e->detail != NotifyNonlinear
&& e->detail != NotifyNonlinearVirtual)
// SELI check all this
return; // hack for motif apps like netscape
if (QApplication::activePopupWidget())
return;
if (!check_follows_focusin(this))
setActive(false);
}
// performs _NET_WM_MOVERESIZE
void Client::NETMoveResize(int x_root, int y_root, NET::Direction direction)
{
if (direction == NET::Move)
performMouseCommand(Options::MouseMove, QPoint(x_root, y_root));
else if (moveResizeMode && direction == NET::MoveResizeCancel) {
finishMoveResize(true);
buttonDown = false;
updateCursor();
} else if (direction >= NET::TopLeft && direction <= NET::Left) {
static const Position convert[] = {
PositionTopLeft,
PositionTop,
PositionTopRight,
PositionRight,
PositionBottomRight,
PositionBottom,
PositionBottomLeft,
PositionLeft
};
if (!isResizable() || isShade())
return;
if (moveResizeMode)
finishMoveResize(false);
buttonDown = true;
moveOffset = QPoint(x_root - x(), y_root - y()); // map from global
invertedMoveOffset = rect().bottomRight() - moveOffset;
unrestrictedMoveResize = false;
mode = convert[ direction ];
if (!startMoveResize())
buttonDown = false;
updateCursor();
} else if (direction == NET::KeyboardMove) {
// ignore mouse coordinates given in the message, mouse position is used by the moving algorithm
QCursor::setPos(geometry().center());
performMouseCommand(Options::MouseUnrestrictedMove, geometry().center());
} else if (direction == NET::KeyboardSize) {
// ignore mouse coordinates given in the message, mouse position is used by the resizing algorithm
QCursor::setPos(geometry().bottomRight());
performMouseCommand(Options::MouseUnrestrictedResize, geometry().bottomRight());
}
}
void Client::keyPressEvent(uint key_code)
{
updateUserTime();
if (!isMove() && !isResize())
return;
bool is_control = key_code & Qt::CTRL;
bool is_alt = key_code & Qt::ALT;
key_code = key_code & ~Qt::KeyboardModifierMask;
int delta = is_control ? 1 : is_alt ? 32 : 8;
QPoint pos = cursorPos();
switch(key_code) {
case Qt::Key_Left:
pos.rx() -= delta;
break;
case Qt::Key_Right:
pos.rx() += delta;
break;
case Qt::Key_Up:
pos.ry() -= delta;
break;
case Qt::Key_Down:
pos.ry() += delta;
break;
case Qt::Key_Space:
case Qt::Key_Return:
case Qt::Key_Enter:
finishMoveResize(false);
buttonDown = false;
updateCursor();
break;
case Qt::Key_Escape:
finishMoveResize(true);
buttonDown = false;
updateCursor();
break;
default:
return;
}
QCursor::setPos(pos);
}
#ifdef HAVE_XSYNC
void Client::syncEvent(XSyncAlarmNotifyEvent* e)
{
if (e->alarm == syncRequest.alarm && XSyncValueEqual(e->counter_value, syncRequest.value)) {
setReadyForPainting();
syncRequest.isPending = false;
if (syncRequest.failsafeTimeout)
syncRequest.failsafeTimeout->stop();
if (isResize()) {
if (syncRequest.timeout)
syncRequest.timeout->stop();
performMoveResize();
} else // setReadyForPainting does as well, but there's a small chance for resize syncs after the resize ended
addRepaintFull();
}
}
#endif
// ****************************************
// Unmanaged
// ****************************************
bool Unmanaged::windowEvent(XEvent* e)
{
double old_opacity = opacity();
unsigned long dirty[ 2 ];
info->event(e, dirty, 2); // pass through the NET stuff
if (dirty[ NETWinInfo::PROTOCOLS2 ] & NET::WM2Opacity) {
if (compositing()) {
addRepaintFull();
emit opacityChanged(this, old_opacity);
}
}
switch(e->type) {
case UnmapNotify:
workspace()->updateFocusMousePosition(QCursor::pos());
unmapNotifyEvent(&e->xunmap);
break;
case MapNotify:
mapNotifyEvent(&e->xmap);
break;
case ConfigureNotify:
configureNotifyEvent(&e->xconfigure);
break;
case PropertyNotify:
propertyNotifyEvent(&e->xproperty);
break;
default: {
if (e->type == Xcb::Extensions::self()->shapeNotifyEvent()) {
detectShape(window());
addRepaintFull();
addWorkspaceRepaint(geometry()); // in case shape change removes part of this window
emit geometryShapeChanged(this, geometry());
}
if (e->type == Xcb::Extensions::self()->damageNotifyEvent())
damageNotifyEvent(reinterpret_cast< XDamageNotifyEvent* >(e));
break;
}
}
return false; // don't eat events, even our own unmanaged widgets are tracked
}
void Unmanaged::mapNotifyEvent(XMapEvent*)
{
}
void Unmanaged::unmapNotifyEvent(XUnmapEvent*)
{
release();
}
void Unmanaged::configureNotifyEvent(XConfigureEvent* e)
{
if (effects)
static_cast<EffectsHandlerImpl*>(effects)->checkInputWindowStacking(); // keep them on top
QRect newgeom(e->x, e->y, e->width, e->height);
if (newgeom != geom) {
addWorkspaceRepaint(visibleRect()); // damage old area
QRect old = geom;
geom = newgeom;
addRepaintFull();
if (old.size() != geom.size())
discardWindowPixmap();
emit geometryShapeChanged(this, old);
}
}
// ****************************************
// Toplevel
// ****************************************
void Toplevel::propertyNotifyEvent(XPropertyEvent* e)
{
if (e->window != window())
return; // ignore frame/wrapper
switch(e->atom) {
default:
if (e->atom == atoms->wm_client_leader)
getWmClientLeader();
else if (e->atom == atoms->wm_window_role)
getWindowRole();
else if (e->atom == atoms->kde_net_wm_shadow)
getShadow();
else if (e->atom == atoms->net_wm_opaque_region)
getWmOpaqueRegion();
break;
}
emit propertyNotify(this, e->atom);
}
// ****************************************
// Group
// ****************************************
bool Group::groupEvent(XEvent* e)
{
unsigned long dirty[ 2 ];
leader_info->event(e, dirty, 2); // pass through the NET stuff
if ((dirty[ WinInfo::PROTOCOLS2 ] & NET::WM2StartupId) != 0)
startupIdChanged();
return false;
}
} // namespace