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kwin/x11client.h
Vlad Zahorodnii 76af96bcc9 [x11] Disable synchronized resizing for Xwayland < 1.21 
In case Xwayland does not use multiple buffers, the currently attached
buffer is going to be destroyed if the frame window is resized. It may
render the previous and the current window pixmap invalid and thus result
in visual artifacts when an X11 client is being interactively resized.

In order to avoid the visual artifacts, this change disables support for
synchronized resizing for X11 clients if the version of Xwayland is less
than the version in which Xwayland started using multiple buffers, i.e.
1.21.

Differential Revision: https://phabricator.kde.org/D29250
2020-04-29 16:37:31 +03:00

690 lines
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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>
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/>.
*********************************************************************/
#pragma once
// kwin
#include "options.h"
#include "rules.h"
#include "abstract_client.h"
#include "xcbutils.h"
// Qt
#include <QElapsedTimer>
#include <QFlags>
#include <QPointer>
#include <QPixmap>
#include <QWindow>
// X
#include <xcb/sync.h>
// TODO: Cleanup the order of things in this .h file
class QTimer;
class KStartupInfoData;
class KStartupInfoId;
namespace KWin
{
/**
* @brief Defines Predicates on how to search for a Client.
*
* Used by Workspace::findClient.
*/
enum class Predicate {
WindowMatch,
WrapperIdMatch,
FrameIdMatch,
InputIdMatch
};
class KWIN_EXPORT X11Client : public AbstractClient
{
Q_OBJECT
/**
* By how much the window wishes to grow/shrink at least. Usually QSize(1,1).
* MAY BE DISOBEYED BY THE WM! It's only for information, do NOT rely on it at all.
* The value is evaluated each time the getter is called.
* Because of that no changed signal is provided.
*/
Q_PROPERTY(QSize basicUnit READ basicUnit)
/**
* A client can block compositing. That is while the Client is alive and the state is set,
* Compositing is suspended and is resumed when there are no Clients blocking compositing any
* more.
*
* This is actually set by a window property, unfortunately not used by the target application
* group. For convenience it's exported as a property to the scripts.
*
* Use with care!
*/
Q_PROPERTY(bool blocksCompositing READ isBlockingCompositing WRITE setBlockingCompositing NOTIFY blockingCompositingChanged)
/**
* Whether the Client uses client side window decorations.
* Only GTK+ are detected.
*/
Q_PROPERTY(bool clientSideDecorated READ isClientSideDecorated NOTIFY clientSideDecoratedChanged)
public:
explicit X11Client();
~X11Client() override; ///< Use destroyClient() or releaseWindow()
xcb_window_t wrapperId() const;
xcb_window_t inputId() const { return m_decoInputExtent; }
xcb_window_t frameId() const override;
QRect inputGeometry() const override;
QRect bufferGeometry() const override;
QMargins bufferMargins() const override;
QPoint framePosToClientPos(const QPoint &point) const override;
QPoint clientPosToFramePos(const QPoint &point) const override;
QSize frameSizeToClientSize(const QSize &size) const override;
QSize clientSizeToFrameSize(const QSize &size) const override;
QRect frameRectToBufferRect(const QRect &rect) const;
QMatrix4x4 inputTransformation() const override;
bool isTransient() const override;
bool groupTransient() const override;
bool wasOriginallyGroupTransient() const;
QList<AbstractClient*> mainClients() const override; // Call once before loop , is not indirect
bool hasTransient(const AbstractClient* c, bool indirect) const override;
void checkTransient(xcb_window_t w);
AbstractClient* findModal(bool allow_itself = false) override;
const Group* group() const override;
Group* group() override;
void checkGroup(Group* gr = nullptr, bool force = false);
void changeClientLeaderGroup(Group* gr);
void updateWindowRules(Rules::Types selection) override;
void applyWindowRules() override;
void updateFullscreenMonitors(NETFullscreenMonitors topology);
bool hasNETSupport() const;
QSize minSize() const override;
QSize maxSize() const override;
QSize basicUnit() const;
QSize clientSize() const override;
QPoint inputPos() const { return input_offset; } // Inside of geometry()
bool windowEvent(xcb_generic_event_t *e);
NET::WindowType windowType(bool direct = false, int supported_types = 0) const override;
bool manage(xcb_window_t w, bool isMapped);
void releaseWindow(bool on_shutdown = false);
void destroyClient() override;
QStringList activities() const override;
void setOnActivity(const QString &activity, bool enable);
void setOnAllActivities(bool set) override;
void setOnActivities(QStringList newActivitiesList) override;
void updateActivities(bool includeTransients);
void blockActivityUpdates(bool b = true) override;
/// Is not minimized and not hidden. I.e. normally visible on some virtual desktop.
bool isShown(bool shaded_is_shown) const override;
bool isHiddenInternal() const override; // For compositing
ShadeMode shadeMode() const override; // Prefer isShade()
void setShade(ShadeMode mode) override;
bool isShadeable() const override;
bool isMaximizable() const override;
MaximizeMode maximizeMode() const override;
bool isMinimizable() const override;
QRect iconGeometry() const override;
bool isFullScreenable() const override;
void setFullScreen(bool set, bool user = true) override;
bool isFullScreen() const override;
bool userCanSetFullScreen() const override;
QRect geometryFSRestore() const {
return geom_fs_restore; // only for session saving
}
int fullScreenMode() const {
return m_fullscreenMode; // only for session saving
}
bool userNoBorder() const;
bool noBorder() const override;
void setNoBorder(bool set) override;
bool userCanSetNoBorder() const override;
void checkNoBorder() override;
int sessionStackingOrder() const;
// Auxiliary functions, depend on the windowType
bool wantsInput() const override;
bool isResizable() const override;
bool isMovable() const override;
bool isMovableAcrossScreens() const override;
bool isCloseable() const override; ///< May be closed by the user (May have a close button)
void takeFocus() override;
void updateDecoration(bool check_workspace_pos, bool force = false) override;
void updateShape();
using AbstractClient::move;
void move(int x, int y, ForceGeometry_t force = NormalGeometrySet) override;
void setFrameGeometry(const QRect &rect, ForceGeometry_t force = NormalGeometrySet) override;
/// plainResize() simply resizes
void plainResize(int w, int h, ForceGeometry_t force = NormalGeometrySet);
void plainResize(const QSize& s, ForceGeometry_t force = NormalGeometrySet);
/// resizeWithChecks() resizes according to gravity, and checks workarea position
void resizeWithChecks(const QSize &size, ForceGeometry_t force = NormalGeometrySet) override;
void resizeWithChecks(int w, int h, xcb_gravity_t gravity, ForceGeometry_t force = NormalGeometrySet);
void resizeWithChecks(const QSize& s, xcb_gravity_t gravity, ForceGeometry_t force = NormalGeometrySet);
QSize constrainClientSize(const QSize &size, SizeMode mode = SizeModeAny) const override;
bool providesContextHelp() const override;
Options::WindowOperation mouseButtonToWindowOperation(Qt::MouseButtons button);
bool performMouseCommand(Options::MouseCommand, const QPoint& globalPos) override;
QRect adjustedClientArea(const QRect& desktop, const QRect& area) const;
xcb_colormap_t colormap() const;
/// Updates visibility depending on being shaded, virtual desktop, etc.
void updateVisibility();
/// Hides a client - Basically like minimize, but without effects, it's simply hidden
void hideClient(bool hide) override;
bool hiddenPreview() const; ///< Window is mapped in order to get a window pixmap
bool setupCompositing() override;
void finishCompositing(ReleaseReason releaseReason = ReleaseReason::Release) override;
void setBlockingCompositing(bool block);
inline bool isBlockingCompositing() { return blocks_compositing; }
QString captionNormal() const override {
return cap_normal;
}
QString captionSuffix() const override {
return cap_suffix;
}
using AbstractClient::keyPressEvent;
void keyPressEvent(uint key_code, xcb_timestamp_t time); // FRAME ??
void updateMouseGrab() override;
xcb_window_t moveResizeGrabWindow() const;
QPoint gravityAdjustment(xcb_gravity_t gravity) const;
const QPoint calculateGravitation(bool invert) const;
void NETMoveResize(int x_root, int y_root, NET::Direction direction);
void NETMoveResizeWindow(int flags, int x, int y, int width, int height);
void restackWindow(xcb_window_t above, int detail, NET::RequestSource source, xcb_timestamp_t timestamp,
bool send_event = false);
void gotPing(xcb_timestamp_t timestamp);
void updateUserTime(xcb_timestamp_t time = XCB_TIME_CURRENT_TIME);
xcb_timestamp_t userTime() const override;
bool hasUserTimeSupport() const;
/// Does 'delete c;'
static void deleteClient(X11Client *c);
static bool belongToSameApplication(const X11Client *c1, const X11Client *c2, SameApplicationChecks checks = SameApplicationChecks());
static bool sameAppWindowRoleMatch(const X11Client *c1, const X11Client *c2, bool active_hack);
void killWindow() override;
void toggleShade();
void showContextHelp() override;
void cancelShadeHoverTimer();
void checkActiveModal();
StrutRect strutRect(StrutArea area) const;
StrutRects strutRects() const;
bool hasStrut() const override;
/**
* If shown is true the client is mapped and raised, if false
* the client is unmapped and hidden, this function is called
* when the tabbing group of the client switches its visible
* client.
*/
void setClientShown(bool shown) override;
/**
* Whether or not the window has a strut that expands through the invisible area of
* an xinerama setup where the monitors are not the same resolution.
*/
bool hasOffscreenXineramaStrut() const;
QRect transparentRect() const override;
bool isClientSideDecorated() const;
bool wantsShadowToBeRendered() const override;
void layoutDecorationRects(QRect &left, QRect &top, QRect &right, QRect &bottom) const override;
Xcb::Property fetchFirstInTabBox() const;
void readFirstInTabBox(Xcb::Property &property);
void updateFirstInTabBox();
Xcb::StringProperty fetchColorScheme() const;
void readColorScheme(Xcb::StringProperty &property);
void updateColorScheme() override;
//sets whether the client should be faked as being on all activities (and be shown during session save)
void setSessionActivityOverride(bool needed);
bool isClient() const override;
template <typename T>
void print(T &stream) const;
void cancelFocusOutTimer();
/**
* Restores the Client after it had been hidden due to show on screen edge functionality.
* In addition the property gets deleted so that the Client knows that it is visible again.
*/
void showOnScreenEdge() override;
Xcb::StringProperty fetchApplicationMenuServiceName() const;
void readApplicationMenuServiceName(Xcb::StringProperty &property);
void checkApplicationMenuServiceName();
Xcb::StringProperty fetchApplicationMenuObjectPath() const;
void readApplicationMenuObjectPath(Xcb::StringProperty &property);
void checkApplicationMenuObjectPath();
struct SyncRequest {
xcb_sync_counter_t counter;
xcb_sync_int64_t value;
xcb_sync_alarm_t alarm;
xcb_timestamp_t lastTimestamp;
QTimer *timeout, *failsafeTimeout;
bool isPending;
};
const SyncRequest &syncRequest() const {
return m_syncRequest;
}
virtual bool wantsSyncCounter() const;
void handleSync();
static void cleanupX11();
public Q_SLOTS:
void closeWindow() override;
void updateCaption() override;
private Q_SLOTS:
void shadeHover();
void shadeUnhover();
private:
// Handlers for X11 events
bool mapRequestEvent(xcb_map_request_event_t *e);
void unmapNotifyEvent(xcb_unmap_notify_event_t *e);
void destroyNotifyEvent(xcb_destroy_notify_event_t *e);
void configureRequestEvent(xcb_configure_request_event_t *e);
void propertyNotifyEvent(xcb_property_notify_event_t *e) override;
void clientMessageEvent(xcb_client_message_event_t *e) override;
void enterNotifyEvent(xcb_enter_notify_event_t *e);
void leaveNotifyEvent(xcb_leave_notify_event_t *e);
void focusInEvent(xcb_focus_in_event_t *e);
void focusOutEvent(xcb_focus_out_event_t *e);
void damageNotifyEvent() override;
bool buttonPressEvent(xcb_window_t w, int button, int state, int x, int y, int x_root, int y_root, xcb_timestamp_t time = XCB_CURRENT_TIME);
bool buttonReleaseEvent(xcb_window_t w, int button, int state, int x, int y, int x_root, int y_root);
bool motionNotifyEvent(xcb_window_t w, int state, int x, int y, int x_root, int y_root);
protected:
void debug(QDebug& stream) const override;
void addDamage(const QRegion &damage) override;
bool belongsToSameApplication(const AbstractClient *other, SameApplicationChecks checks) const override;
void doSetActive() override;
void doSetKeepAbove() override;
void doSetKeepBelow() override;
void doSetDesktop() override;
void doMinimize() override;
void doSetSkipPager() override;
void doSetSkipTaskbar() override;
void doSetSkipSwitcher() override;
void doSetDemandsAttention() override;
bool belongsToDesktop() const override;
bool doStartMoveResize() override;
void doPerformMoveResize() override;
bool isWaitingForMoveResizeSync() const override;
void doResizeSync() override;
QSize resizeIncrements() const override;
bool acceptsFocus() const override;
//Signals for the scripting interface
//Signals make an excellent way for communication
//in between objects as compared to simple function
//calls
Q_SIGNALS:
void clientManaging(KWin::X11Client *);
void clientFullScreenSet(KWin::X11Client *, bool, bool);
/**
* Emitted whenever the Client want to show it menu
*/
void showRequest();
/**
* Emitted whenever the Client's menu is closed
*/
void menuHidden();
/**
* Emitted whenever the Client's menu is available
*/
void appMenuAvailable();
/**
* Emitted whenever the Client's menu is unavailable
*/
void appMenuUnavailable();
/**
* Emitted whenever the Client's block compositing state changes.
*/
void blockingCompositingChanged(KWin::X11Client *client);
void clientSideDecoratedChanged();
private:
void exportMappingState(int s); // ICCCM 4.1.3.1, 4.1.4, NETWM 2.5.1
bool isManaged() const; ///< Returns false if this client is not yet managed
void updateAllowedActions(bool force = false);
QRect fullscreenMonitorsArea(NETFullscreenMonitors topology) const;
void changeMaximize(bool horizontal, bool vertical, bool adjust) override;
void getWmNormalHints();
void getMotifHints();
void getIcons();
void fetchName();
void fetchIconicName();
QString readName() const;
void setCaption(const QString& s, bool force = false);
bool hasTransientInternal(const X11Client *c, bool indirect, QList<const X11Client *> &set) const;
void setShortcutInternal() override;
void configureRequest(int value_mask, int rx, int ry, int rw, int rh, int gravity, bool from_tool);
NETExtendedStrut strut() const;
int checkShadeGeometry(int w, int h);
void getSyncCounter();
void sendSyncRequest();
void leaveMoveResize() override;
void positionGeometryTip() override;
void grabButton(int mod);
void ungrabButton(int mod);
void resizeDecoration();
void createDecoration(const QRect &oldgeom) override;
void pingWindow();
void killProcess(bool ask, xcb_timestamp_t timestamp = XCB_TIME_CURRENT_TIME);
void updateUrgency();
static void sendClientMessage(xcb_window_t w, xcb_atom_t a, xcb_atom_t protocol,
uint32_t data1 = 0, uint32_t data2 = 0, uint32_t data3 = 0,
xcb_timestamp_t timestamp = xTime());
void embedClient(xcb_window_t w, xcb_visualid_t visualid, xcb_colormap_t colormap, uint8_t depth);
void detectNoBorder();
void destroyDecoration() override;
void updateFrameExtents();
void setClientFrameExtents(const NETStrut &strut);
void internalShow();
void internalHide();
void internalKeep();
void map();
void unmap();
void updateHiddenPreview();
void updateInputShape();
void updateServerGeometry();
void updateWindowPixmap();
xcb_timestamp_t readUserTimeMapTimestamp(const KStartupInfoId* asn_id, const KStartupInfoData* asn_data,
bool session) const;
xcb_timestamp_t readUserCreationTime() const;
void startupIdChanged();
void updateInputWindow();
Xcb::Property fetchShowOnScreenEdge() const;
void readShowOnScreenEdge(Xcb::Property &property);
/**
* Reads the property and creates/destroys the screen edge if required
* and shows/hides the client.
*/
void updateShowOnScreenEdge();
Xcb::Window m_client;
Xcb::Window m_wrapper;
Xcb::Window m_frame;
QStringList activityList;
int m_activityUpdatesBlocked;
bool m_blockedActivityUpdatesRequireTransients;
Xcb::Window m_moveResizeGrabWindow;
bool move_resize_has_keyboard_grab;
bool m_managed;
Xcb::GeometryHints m_geometryHints;
void sendSyntheticConfigureNotify();
enum MappingState {
Withdrawn, ///< Not handled, as per ICCCM WithdrawnState
Mapped, ///< The frame is mapped
Unmapped, ///< The frame is not mapped
Kept ///< The frame should be unmapped, but is kept (For compositing)
};
MappingState mapping_state;
Xcb::TransientFor fetchTransient() const;
void readTransientProperty(Xcb::TransientFor &transientFor);
void readTransient();
xcb_window_t verifyTransientFor(xcb_window_t transient_for, bool set);
void addTransient(AbstractClient* cl) override;
void removeTransient(AbstractClient* cl) override;
void removeFromMainClients();
void cleanGrouping();
void checkGroupTransients();
void setTransient(xcb_window_t new_transient_for_id);
xcb_window_t m_transientForId;
xcb_window_t m_originalTransientForId;
ShadeMode shade_mode;
X11Client *shade_below;
uint deleting : 1; ///< True when doing cleanup and destroying the client
Xcb::MotifHints m_motif;
uint hidden : 1; ///< Forcibly hidden by calling hide()
uint noborder : 1;
uint app_noborder : 1; ///< App requested no border via window type, shape extension, etc.
uint ignore_focus_stealing : 1; ///< Don't apply focus stealing prevention to this client
bool blocks_compositing;
enum FullScreenMode {
FullScreenNone,
FullScreenNormal
} m_fullscreenMode;
MaximizeMode max_mode;
QRect m_bufferGeometry = QRect(0, 0, 100, 100);
QRect m_clientGeometry = QRect(0, 0, 100, 100);
QRect geom_fs_restore;
QTimer* shadeHoverTimer;
xcb_colormap_t m_colormap;
QString cap_normal, cap_iconic, cap_suffix;
Group* in_group;
QTimer* ping_timer;
qint64 m_killHelperPID;
xcb_timestamp_t m_pingTimestamp;
xcb_timestamp_t m_userTime;
NET::Actions allowed_actions;
bool shade_geometry_change;
SyncRequest m_syncRequest;
static bool check_active_modal; ///< \see X11Client::checkActiveModal()
int sm_stacking_order;
friend struct ResetupRulesProcedure;
friend bool performTransiencyCheck();
Xcb::StringProperty fetchActivities() const;
void readActivities(Xcb::StringProperty &property);
void checkActivities();
bool activitiesDefined; //whether the x property was actually set
bool sessionActivityOverride;
bool needsXWindowMove;
Xcb::Window m_decoInputExtent;
QPoint input_offset;
QTimer *m_focusOutTimer;
QList<QMetaObject::Connection> m_connections;
QMetaObject::Connection m_edgeRemoveConnection;
QMetaObject::Connection m_edgeGeometryTrackingConnection;
QMargins m_clientFrameExtents;
};
inline xcb_window_t X11Client::wrapperId() const
{
return m_wrapper;
}
inline bool X11Client::isClientSideDecorated() const
{
return !m_clientFrameExtents.isNull();
}
inline bool X11Client::groupTransient() const
{
return m_transientForId == rootWindow();
}
// Needed because verifyTransientFor() may set transient_for_id to root window,
// if the original value has a problem (window doesn't exist, etc.)
inline bool X11Client::wasOriginallyGroupTransient() const
{
return m_originalTransientForId == rootWindow();
}
inline bool X11Client::isTransient() const
{
return m_transientForId != XCB_WINDOW_NONE;
}
inline const Group* X11Client::group() const
{
return in_group;
}
inline Group* X11Client::group()
{
return in_group;
}
inline bool X11Client::isShown(bool shaded_is_shown) const
{
return !isMinimized() && (!isShade() || shaded_is_shown) && !hidden;
}
inline bool X11Client::isHiddenInternal() const
{
return hidden;
}
inline ShadeMode X11Client::shadeMode() const
{
return shade_mode;
}
inline MaximizeMode X11Client::maximizeMode() const
{
return max_mode;
}
inline bool X11Client::isFullScreen() const
{
return m_fullscreenMode != FullScreenNone;
}
inline bool X11Client::hasNETSupport() const
{
return info->hasNETSupport();
}
inline xcb_colormap_t X11Client::colormap() const
{
return m_colormap;
}
inline int X11Client::sessionStackingOrder() const
{
return sm_stacking_order;
}
inline bool X11Client::isManaged() const
{
return m_managed;
}
inline QSize X11Client::clientSize() const
{
return m_clientGeometry.size();
}
inline void X11Client::plainResize(const QSize& s, ForceGeometry_t force)
{
plainResize(s.width(), s.height(), force);
}
inline void X11Client::resizeWithChecks(const QSize &s, AbstractClient::ForceGeometry_t force)
{
resizeWithChecks(s.width(), s.height(), XCB_GRAVITY_BIT_FORGET, force);
}
inline void X11Client::resizeWithChecks(const QSize& s, xcb_gravity_t gravity, ForceGeometry_t force)
{
resizeWithChecks(s.width(), s.height(), gravity, force);
}
inline bool X11Client::hasUserTimeSupport() const
{
return info->userTime() != -1U;
}
inline xcb_window_t X11Client::moveResizeGrabWindow() const
{
return m_moveResizeGrabWindow;
}
inline bool X11Client::hiddenPreview() const
{
return mapping_state == Kept;
}
template <typename T>
inline void X11Client::print(T &stream) const
{
stream << "\'Client:" << window() << ";WMCLASS:" << resourceClass() << ":"
<< resourceName() << ";Caption:" << caption() << "\'";
}
} // namespace
Q_DECLARE_METATYPE(KWin::X11Client *)
Q_DECLARE_METATYPE(QList<KWin::X11Client *>)
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