kwin/client.h

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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/>.
*********************************************************************/
#ifndef KWIN_CLIENT_H
#define KWIN_CLIENT_H
// kwin
#include "options.h"
#include "rules.h"
#include "tabgroup.h"
#include "abstract_client.h"
#include "xcbutils.h"
// Qt
#include <QElapsedTimer>
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#include <QFlags>
#include <QPointer>
#include <QPixmap>
#include <QWindow>
// X
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#include <xcb/sync.h>
// TODO: Cleanup the order of things in this .h file
class QTimer;
class KStartupInfoData;
class KStartupInfoId;
struct xcb_sync_alarm_notify_event_t;
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 Client
: public AbstractClient
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{
Q_OBJECT
/**
* Whether the Client can be maximized both horizontally and vertically.
* The property is evaluated each time it is invoked.
* Because of that there is no notify signal.
**/
Q_PROPERTY(bool maximizable READ isMaximizable)
/**
* Whether the Client is moveable. Even if it is not moveable, it might be possible to move
* it to another screen. The property is evaluated each time it is invoked.
* Because of that there is no notify signal.
* @see moveableAcrossScreens
**/
Q_PROPERTY(bool moveable READ isMovable)
/**
* Whether the Client can be moved to another screen. The property is evaluated each time it is invoked.
* Because of that there is no notify signal.
* @see moveable
**/
Q_PROPERTY(bool moveableAcrossScreens READ isMovableAcrossScreens)
/**
* Whether the Client can be resized. The property is evaluated each time it is invoked.
* Because of that there is no notify signal.
**/
Q_PROPERTY(bool resizeable READ isResizable)
/**
* 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)
/**
* The "Window Tabs" Group this Client belongs to.
**/
Q_PROPERTY(KWin::TabGroup* tabGroup READ tabGroup NOTIFY tabGroupChanged SCRIPTABLE false)
/**
* 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)
Add a script to enforce window decorations for GTK windows This is going to be a controversal change. It enforces KWin decorations on all client side decorated windows from GTK+. Unfortunately we are caught between a rock and a hard place. Keeping the status quo means having broken windows and a more or less broken window manager due to GTK+ including the shadow in the windows. This is no solution. Enforcing server side decorations visually breaks the windows. This is also no solution. So why do it? It's our task to provide the best possible user experience and KWin is a window manager which has always done great efforts to fix misbehaving windows. One can think of the focus stealing prevention, the window rules and lately the scripts. The best possible window management experience is our aim. This means we cannot leave the users with the broken windows from GTK. The issues we noticed were reported to GTK+ about 2 months ago and we are working on improving the situation. Unfortunately several issues are not yet addressed and others will only be addressed in the next GTK+ release. We are working on improving the NETWM spec (see [1]) to ensure that the client side decorated windows are not in a broken state. This means the enforcment is a temporary solution and will be re-evaluated with the next GTK release. I would prefer to not have to do such a change, if some of the bugs were fixed or GTK+ would not use client-side-decos on wms not yet supporting those all of this would be a no issue. For a complete list of the problems caused by GTK's decos see bug [2] and the linked bug reports from there. The change is done in a least inversive way in KWin. We just check for the property _GTK_FRAME_EXTENTS and create a Q_PROPERTY in Client for it. If we add support for the frame extents in future we would also need this. So it's not a change just for enforcing the decoration. The actual enforcing is done through a KWin script so users can still disable it. REVIEW: 119062 [1] https://mail.gnome.org/archives/wm-spec-list/2014-June/msg00002.html [2] https://bugzilla.gnome.org/show_bug.cgi?id=729721
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/**
* Whether the Client uses client side window decorations.
* Only GTK+ are detected.
**/
Q_PROPERTY(bool clientSideDecorated READ isClientSideDecorated NOTIFY clientSideDecoratedChanged)
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public:
explicit Client();
xcb_window_t wrapperId() const;
xcb_window_t inputId() const { return m_decoInputExtent; }
virtual xcb_window_t frameId() const override;
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bool isTransient() const override;
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bool groupTransient() const;
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;
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const Group* group() const;
Group* group();
void checkGroup(Group* gr = NULL, bool force = false);
void changeClientLeaderGroup(Group* gr);
const WindowRules* rules() const override;
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void removeRule(Rules* r);
void setupWindowRules(bool ignore_temporary);
void applyWindowRules();
void updateWindowRules(Rules::Types selection) override;
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void updateFullscreenMonitors(NETFullscreenMonitors topology);
bool hasNETSupport() const;
QSize minSize() const override;
QSize maxSize() const override;
QSize basicUnit() const;
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virtual QSize clientSize() const;
QPoint inputPos() const { return input_offset; } // Inside of geometry()
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bool windowEvent(xcb_generic_event_t *e);
void syncEvent(xcb_sync_alarm_notify_event_t* e);
NET::WindowType windowType(bool direct = false, int supported_types = 0) const;
bool manage(xcb_window_t w, bool isMapped);
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void releaseWindow(bool on_shutdown = false);
void destroyClient();
virtual int desktop() const;
virtual QStringList activities() const;
void setOnActivity(const QString &activity, bool enable);
void setOnAllActivities(bool set) override;
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void setOnActivities(QStringList newActivitiesList);
void updateActivities(bool includeTransients);
void blockActivityUpdates(bool b = true) override;
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/// 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
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ShadeMode shadeMode() const override; // Prefer isShade()
void setShade(ShadeMode mode) override;
bool isShadeable() const override;
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bool isMaximizable() const override;
QRect geometryRestore() const override;
MaximizeMode maximizeMode() const override;
bool isMinimizable() const override;
QRect iconGeometry() const override;
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void setFullScreen(bool set, bool user = true) override;
bool isFullScreen() const override;
bool isFullScreenable() const override;
bool isFullScreenable(bool fullscreen_hack) const;
bool userCanSetFullScreen() const override;
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QRect geometryFSRestore() const {
return geom_fs_restore; // Only for session saving
}
int fullScreenMode() const {
return fullscreen_mode; // only for session saving
}
bool noBorder() const override;
void setNoBorder(bool set) override;
bool userCanSetNoBorder() const override;
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void checkNoBorder();
int sessionStackingOrder() const;
// Auxiliary functions, depend on the windowType
bool wantsInput() const override;
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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)
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void takeFocus() override;
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void updateDecoration(bool check_workspace_pos, bool force = false) override;
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void updateShape();
using AbstractClient::setGeometry;
void setGeometry(int x, int y, int w, int h, ForceGeometry_t force = NormalGeometrySet) override;
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/// plainResize() simply resizes
void plainResize(int w, int h, ForceGeometry_t force = NormalGeometrySet);
void plainResize(const QSize& s, ForceGeometry_t force = NormalGeometrySet);
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/// resizeWithChecks() resizes according to gravity, and checks workarea position
using AbstractClient::resizeWithChecks;
void resizeWithChecks(int w, int h, 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 sizeForClientSize(const QSize&, Sizemode mode = SizemodeAny, bool noframe = false) const override;
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bool providesContextHelp() const override;
const QKeySequence &shortcut() const override;
void setShortcut(const QString& cut) override;
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Options::WindowOperation mouseButtonToWindowOperation(Qt::MouseButtons button);
bool performMouseCommand(Options::MouseCommand, const QPoint& globalPos) override;
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QRect adjustedClientArea(const QRect& desktop, const QRect& area) const;
xcb_colormap_t colormap() const;
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/// 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;
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bool hiddenPreview() const; ///< Window is mapped in order to get a window pixmap
virtual bool setupCompositing();
void finishCompositing(ReleaseReason releaseReason = ReleaseReason::Release) override;
void setBlockingCompositing(bool block);
inline bool isBlockingCompositing() { return blocks_compositing; }
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QString caption(bool full = true, bool stripped = false) const override;
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using AbstractClient::keyPressEvent;
void keyPressEvent(uint key_code, xcb_timestamp_t time); // FRAME ??
void updateMouseGrab() override;
xcb_window_t moveResizeGrabWindow() const;
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const QPoint calculateGravitation(bool invert, int gravity = 0) const; // FRAME public?
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,
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bool send_event = false);
void gotPing(xcb_timestamp_t timestamp);
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void updateUserTime(xcb_timestamp_t time = XCB_TIME_CURRENT_TIME);
xcb_timestamp_t userTime() const override;
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bool hasUserTimeSupport() const;
/// Does 'delete c;'
static void deleteClient(Client* c);
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static bool belongToSameApplication(const Client* c1, const Client* c2, bool active_hack = false);
static bool sameAppWindowRoleMatch(const Client* c1, const Client* c2, bool active_hack);
void killWindow();
void toggleShade();
void showContextHelp() override;
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void cancelShadeHoverTimer();
void checkActiveModal();
StrutRect strutRect(StrutArea area) const;
StrutRects strutRects() const;
bool hasStrut() const override;
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// Tabbing functions
TabGroup* tabGroup() const override; // Returns a pointer to client_group
Q_INVOKABLE inline bool tabBefore(Client *other, bool activate) { return tabTo(other, false, activate); }
Q_INVOKABLE inline bool tabBehind(Client *other, bool activate) { return tabTo(other, true, activate); }
/**
* Syncs the *dynamic* @param property @param fromThisClient or the @link currentTab() to
* all members of the @link tabGroup() (if there is one)
*
* eg. if you call:
* client->setProperty("kwin_tiling_floats", true);
* client->syncTabGroupFor("kwin_tiling_floats", true)
* all clients in this tabGroup will have ::property("kwin_tiling_floats").toBool() == true
*
* WARNING: non dynamic properties are ignored - you're not supposed to alter/update such explicitly
*/
Q_INVOKABLE void syncTabGroupFor(QString property, bool fromThisClient = false);
Q_INVOKABLE bool untab(const QRect &toGeometry = QRect(), bool clientRemoved = false) override;
/**
* Set tab group - this is to be invoked by TabGroup::add/remove(client) and NO ONE ELSE
*/
void setTabGroup(TabGroup* group);
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/*
* 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);
/*
* When a click is done in the decoration and it calls the group
* to change the visible client it starts to move-resize the new
* client, this function stops it.
*/
bool isCurrentTab() const override;
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/**
* 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;
// Decorations <-> Effects
QRect decorationRect() const;
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QRect transparentRect() const;
Add a script to enforce window decorations for GTK windows This is going to be a controversal change. It enforces KWin decorations on all client side decorated windows from GTK+. Unfortunately we are caught between a rock and a hard place. Keeping the status quo means having broken windows and a more or less broken window manager due to GTK+ including the shadow in the windows. This is no solution. Enforcing server side decorations visually breaks the windows. This is also no solution. So why do it? It's our task to provide the best possible user experience and KWin is a window manager which has always done great efforts to fix misbehaving windows. One can think of the focus stealing prevention, the window rules and lately the scripts. The best possible window management experience is our aim. This means we cannot leave the users with the broken windows from GTK. The issues we noticed were reported to GTK+ about 2 months ago and we are working on improving the situation. Unfortunately several issues are not yet addressed and others will only be addressed in the next GTK+ release. We are working on improving the NETWM spec (see [1]) to ensure that the client side decorated windows are not in a broken state. This means the enforcment is a temporary solution and will be re-evaluated with the next GTK release. I would prefer to not have to do such a change, if some of the bugs were fixed or GTK+ would not use client-side-decos on wms not yet supporting those all of this would be a no issue. For a complete list of the problems caused by GTK's decos see bug [2] and the linked bug reports from there. The change is done in a least inversive way in KWin. We just check for the property _GTK_FRAME_EXTENTS and create a Q_PROPERTY in Client for it. If we add support for the frame extents in future we would also need this. So it's not a change just for enforcing the decoration. The actual enforcing is done through a KWin script so users can still disable it. REVIEW: 119062 [1] https://mail.gnome.org/archives/wm-spec-list/2014-June/msg00002.html [2] https://bugzilla.gnome.org/show_bug.cgi?id=729721
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bool isClientSideDecorated() const;
bool wantsShadowToBeRendered() const override;
void layoutDecorationRects(QRect &left, QRect &top, QRect &right, QRect &bottom) const override;
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Xcb::Property fetchFirstInTabBox() const;
void readFirstInTabBox(Xcb::Property &property);
void updateFirstInTabBox();
Xcb::StringProperty fetchColorScheme() const;
void readColorScheme(Xcb::StringProperty &property);
void updateColorScheme();
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//sets whether the client should be treated as a SessionInteract window
void setSessionInteract(bool needed);
virtual bool isClient() const;
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template <typename T>
void print(T &stream) const;
void cancelFocusOutTimer();
Screenedge show support for Clients This provides a new protocol intended to be used by auto-hiding panels to make use of the centralized screen edges. To use it a Client can set an X11 property of type _KDE_NET_WM_SCREEN_EDGE_SHOW to KWin. As value it takes: * 0: top edge * 1: right edge * 2: bottom edge * 3: left edge KWin will hide the Client (hide because unmap or minimize would break it) and create an Edge. If that Edge gets triggered the Client is shown again and the property gets deleted. If the Client doesn't border the specified screen edge the Client gets shown immediately so that we never end in a situation that we cannot unhide the auto-hidden panel again. The exact process is described in the documentation of ScreenEdges. The Client can request to be shown again by deleting the property. If KWin gets restarted the state is read from the property and it is tried to create the edge as described. As this is a KWin specific extension we need to discuss what it means for Clients using this feature with other WMs: it does nothing. As the Client gets hidden by KWin and not by the Client, it just doesn't get hidden if the WM doesn't provide the feature. In case of an auto-hiding panel this seems like a good solution given that we don't want to hide it if we cannot unhide it. Of course there's the option for the Client to provide that feature itself and if that's wanted we would need to announce the feature in the _NET_SUPPORTED atom. At the moment that doesn't sound like being needed as Plasma doesn't want to provide an own implementation. The implementation comes with a small test application showing how the feature is intended to be used. REVIEW: 115910
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/**
* 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();
static void cleanupX11();
public Q_SLOTS:
void closeWindow() override;
Improved resolving whether a window is on local machine Most windows use the hostname in WM_CLIENT_MACHINE, but there are windows using the FQDN (for example libreoffice). So instead of "foo" it is "foo.local.net" or similar. The logic so far has been unable to properly determine whether windows with FQDN are on the local system. In order to solve this problem the handling is split out into an own class which stores the information of hostname and whether it is a local machine. This is to not query multiple times. To determine whether the Client is on the local system getaddrinfo is used for the own hostname and the FQDN provided in WM_CLIENT_MACHINE. If one of the queried names matches, we know that it is on the local machine. The old logic to compare the hostname is still used and getaddrinfo is only a fallback in case hostname does not match. The problem with getaddrinfo is, that it accesses the network and by that could block. To circumvent this problem the calls are moved into threads by using QtConcurrent::run. Obviously this brings disadvantages. When trying to resolve whether a Client is on the local machine and a FQDN is used, the information is initially wrong. The new ClientMachine class emits a signal when the information that the system is local becomes available, but for some things this is just too late: * window rules are already gathered * Session Management has already taken place In both cases this is an acceptable loss. For window rules it just needs a proper matching of the machine in case of localhost (remote hosts are not affected). And the case of session management is very academic as it is unlikely that a restoring session contains remote windows. BUG: 308391 FIXED-IN: 4.11 REVIEW: 108235
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void updateCaption();
void evaluateWindowRules();
private Q_SLOTS:
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void shadeHover();
void shadeUnhover();
private:
// Use Workspace::createClient()
virtual ~Client(); ///< Use destroyClient() or releaseWindow()
// 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);
virtual 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);
virtual void damageNotifyEvent();
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);
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Client* findAutogroupCandidate() const;
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protected:
virtual void debug(QDebug& stream) const;
void addDamage(const QRegion &damage) override;
bool belongsToSameApplication(const AbstractClient *other, bool active_hack) const override;
void doSetActive() override;
void doSetKeepAbove() override;
void doSetKeepBelow() override;
void doSetDesktop(int desktop, int was_desk) override;
void doMinimize() override;
void doSetSkipPager() override;
void doSetSkipTaskbar() override;
bool belongsToDesktop() const override;
bool isActiveFullScreen() const override;
void setGeometryRestore(const QRect &geo) override;
void updateTabGroupStates(TabGroup::States states) override;
void doMove(int x, int y) override;
bool doStartMoveResize() override;
void doPerformMoveResize() override;
bool isWaitingForMoveResizeSync() const override;
void doResizeSync() override;
QSize resizeIncrements() const override;
bool acceptsFocus() const override;
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private Q_SLOTS:
void delayedSetShortcut();
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//Signals for the scripting interface
//Signals make an excellent way for communication
//in between objects as compared to simple function
//calls
Q_SIGNALS:
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void clientManaging(KWin::Client*);
void clientFullScreenSet(KWin::Client*, bool, bool);
/**
* Emitted whenever the Client's TabGroup changed. That is whenever the Client is moved to
* another group, but not when a Client gets added or removed to the Client's ClientGroup.
**/
void tabGroupChanged();
/**
* 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::Client *client);
Add a script to enforce window decorations for GTK windows This is going to be a controversal change. It enforces KWin decorations on all client side decorated windows from GTK+. Unfortunately we are caught between a rock and a hard place. Keeping the status quo means having broken windows and a more or less broken window manager due to GTK+ including the shadow in the windows. This is no solution. Enforcing server side decorations visually breaks the windows. This is also no solution. So why do it? It's our task to provide the best possible user experience and KWin is a window manager which has always done great efforts to fix misbehaving windows. One can think of the focus stealing prevention, the window rules and lately the scripts. The best possible window management experience is our aim. This means we cannot leave the users with the broken windows from GTK. The issues we noticed were reported to GTK+ about 2 months ago and we are working on improving the situation. Unfortunately several issues are not yet addressed and others will only be addressed in the next GTK+ release. We are working on improving the NETWM spec (see [1]) to ensure that the client side decorated windows are not in a broken state. This means the enforcment is a temporary solution and will be re-evaluated with the next GTK release. I would prefer to not have to do such a change, if some of the bugs were fixed or GTK+ would not use client-side-decos on wms not yet supporting those all of this would be a no issue. For a complete list of the problems caused by GTK's decos see bug [2] and the linked bug reports from there. The change is done in a least inversive way in KWin. We just check for the property _GTK_FRAME_EXTENTS and create a Q_PROPERTY in Client for it. If we add support for the frame extents in future we would also need this. So it's not a change just for enforcing the decoration. The actual enforcing is done through a KWin script so users can still disable it. REVIEW: 119062 [1] https://mail.gnome.org/archives/wm-spec-list/2014-June/msg00002.html [2] https://bugzilla.gnome.org/show_bug.cgi?id=729721
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void clientSideDecoratedChanged();
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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;
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int checkFullScreenHack(const QRect& geom) const; // 0 - None, 1 - One xinerama screen, 2 - Full area
void updateFullScreenHack(const QRect& geom);
void getWmNormalHints();
void getMotifHints();
void getIcons();
void fetchName();
void fetchIconicName();
QString readName() const;
void setCaption(const QString& s, bool force = false);
bool hasTransientInternal(const Client* c, bool indirect, ConstClientList& set) const;
void finishWindowRules();
void setShortcutInternal(const QKeySequence &cut = QKeySequence());
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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;
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void grabButton(int mod);
void ungrabButton(int mod);
void resizeDecoration();
void createDecoration(const QRect &oldgeom);
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void pingWindow();
void killProcess(bool ask, xcb_timestamp_t timestamp = XCB_TIME_CURRENT_TIME);
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void updateUrgency();
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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());
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void embedClient(xcb_window_t w, xcb_visualid_t visualid, xcb_colormap_t colormap, uint8_t depth);
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void detectNoBorder();
Xcb::Property fetchGtkFrameExtents() const;
void readGtkFrameExtents(Xcb::Property &prop);
Add a script to enforce window decorations for GTK windows This is going to be a controversal change. It enforces KWin decorations on all client side decorated windows from GTK+. Unfortunately we are caught between a rock and a hard place. Keeping the status quo means having broken windows and a more or less broken window manager due to GTK+ including the shadow in the windows. This is no solution. Enforcing server side decorations visually breaks the windows. This is also no solution. So why do it? It's our task to provide the best possible user experience and KWin is a window manager which has always done great efforts to fix misbehaving windows. One can think of the focus stealing prevention, the window rules and lately the scripts. The best possible window management experience is our aim. This means we cannot leave the users with the broken windows from GTK. The issues we noticed were reported to GTK+ about 2 months ago and we are working on improving the situation. Unfortunately several issues are not yet addressed and others will only be addressed in the next GTK+ release. We are working on improving the NETWM spec (see [1]) to ensure that the client side decorated windows are not in a broken state. This means the enforcment is a temporary solution and will be re-evaluated with the next GTK release. I would prefer to not have to do such a change, if some of the bugs were fixed or GTK+ would not use client-side-decos on wms not yet supporting those all of this would be a no issue. For a complete list of the problems caused by GTK's decos see bug [2] and the linked bug reports from there. The change is done in a least inversive way in KWin. We just check for the property _GTK_FRAME_EXTENTS and create a Q_PROPERTY in Client for it. If we add support for the frame extents in future we would also need this. So it's not a change just for enforcing the decoration. The actual enforcing is done through a KWin script so users can still disable it. REVIEW: 119062 [1] https://mail.gnome.org/archives/wm-spec-list/2014-June/msg00002.html [2] https://bugzilla.gnome.org/show_bug.cgi?id=729721
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void detectGtkFrameExtents();
void destroyDecoration() override;
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void updateFrameExtents();
void internalShow();
void internalHide();
void internalKeep();
void map();
void unmap();
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void updateHiddenPreview();
void updateInputShape();
xcb_timestamp_t readUserTimeMapTimestamp(const KStartupInfoId* asn_id, const KStartupInfoData* asn_data,
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bool session) const;
xcb_timestamp_t readUserCreationTime() const;
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void startupIdChanged();
void updateInputWindow();
bool tabTo(Client *other, bool behind, bool activate);
Xcb::Property fetchShowOnScreenEdge() const;
void readShowOnScreenEdge(Xcb::Property &property);
Screenedge show support for Clients This provides a new protocol intended to be used by auto-hiding panels to make use of the centralized screen edges. To use it a Client can set an X11 property of type _KDE_NET_WM_SCREEN_EDGE_SHOW to KWin. As value it takes: * 0: top edge * 1: right edge * 2: bottom edge * 3: left edge KWin will hide the Client (hide because unmap or minimize would break it) and create an Edge. If that Edge gets triggered the Client is shown again and the property gets deleted. If the Client doesn't border the specified screen edge the Client gets shown immediately so that we never end in a situation that we cannot unhide the auto-hidden panel again. The exact process is described in the documentation of ScreenEdges. The Client can request to be shown again by deleting the property. If KWin gets restarted the state is read from the property and it is tried to create the edge as described. As this is a KWin specific extension we need to discuss what it means for Clients using this feature with other WMs: it does nothing. As the Client gets hidden by KWin and not by the Client, it just doesn't get hidden if the WM doesn't provide the feature. In case of an auto-hiding panel this seems like a good solution given that we don't want to hide it if we cannot unhide it. Of course there's the option for the Client to provide that feature itself and if that's wanted we would need to announce the feature in the _NET_SUPPORTED atom. At the moment that doesn't sound like being needed as Plasma doesn't want to provide an own implementation. The implementation comes with a small test application showing how the feature is intended to be used. REVIEW: 115910
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/**
* 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;
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QStringList activityList;
int m_activityUpdatesBlocked;
bool m_blockedActivityUpdatesRequireTransients;
Xcb::Window m_moveResizeGrabWindow;
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bool move_resize_has_keyboard_grab;
bool m_managed;
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Xcb::GeometryHints m_geometryHints;
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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);
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void readTransient();
xcb_window_t verifyTransientFor(xcb_window_t transient_for, bool set);
void addTransient(AbstractClient* cl) override;
void removeTransient(AbstractClient* cl) override;
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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;
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ShadeMode shade_mode;
Client *shade_below;
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uint deleting : 1; ///< True when doing cleanup and destroying the client
Xcb::MotifHints m_motif;
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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;
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WindowRules client_rules;
// DON'T reorder - Saved to config files !!!
enum FullScreenMode {
FullScreenNone,
FullScreenNormal,
FullScreenHack ///< Non-NETWM fullscreen (noborder and size of desktop)
};
FullScreenMode fullscreen_mode;
MaximizeMode max_mode;
QRect geom_restore;
QRect geom_fs_restore;
QTimer* shadeHoverTimer;
xcb_colormap_t m_colormap;
QString cap_normal, cap_iconic, cap_suffix, cap_deco;
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Group* in_group;
TabGroup* tab_group;
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QTimer* ping_timer;
qint64 m_killHelperPID;
xcb_timestamp_t m_pingTimestamp;
xcb_timestamp_t m_userTime;
NET::Actions allowed_actions;
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QSize client_size;
bool shade_geometry_change;
struct {
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xcb_sync_counter_t counter;
xcb_sync_int64_t value;
xcb_sync_alarm_t alarm;
xcb_timestamp_t lastTimestamp;
QTimer *timeout, *failsafeTimeout;
bool isPending;
} syncRequest;
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static bool check_active_modal; ///< \see Client::checkActiveModal()
QKeySequence _shortcut;
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int sm_stacking_order;
friend struct ResetupRulesProcedure;
friend bool performTransiencyCheck();
Xcb::StringProperty fetchActivities() const;
void readActivities(Xcb::StringProperty &property);
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void checkActivities();
bool activitiesDefined; //whether the x property was actually set
bool needsSessionInteract;
bool needsXWindowMove;
Xcb::Window m_decoInputExtent;
QPoint input_offset;
QTimer *m_focusOutTimer;
QList<QMetaObject::Connection> m_connections;
Add a script to enforce window decorations for GTK windows This is going to be a controversal change. It enforces KWin decorations on all client side decorated windows from GTK+. Unfortunately we are caught between a rock and a hard place. Keeping the status quo means having broken windows and a more or less broken window manager due to GTK+ including the shadow in the windows. This is no solution. Enforcing server side decorations visually breaks the windows. This is also no solution. So why do it? It's our task to provide the best possible user experience and KWin is a window manager which has always done great efforts to fix misbehaving windows. One can think of the focus stealing prevention, the window rules and lately the scripts. The best possible window management experience is our aim. This means we cannot leave the users with the broken windows from GTK. The issues we noticed were reported to GTK+ about 2 months ago and we are working on improving the situation. Unfortunately several issues are not yet addressed and others will only be addressed in the next GTK+ release. We are working on improving the NETWM spec (see [1]) to ensure that the client side decorated windows are not in a broken state. This means the enforcment is a temporary solution and will be re-evaluated with the next GTK release. I would prefer to not have to do such a change, if some of the bugs were fixed or GTK+ would not use client-side-decos on wms not yet supporting those all of this would be a no issue. For a complete list of the problems caused by GTK's decos see bug [2] and the linked bug reports from there. The change is done in a least inversive way in KWin. We just check for the property _GTK_FRAME_EXTENTS and create a Q_PROPERTY in Client for it. If we add support for the frame extents in future we would also need this. So it's not a change just for enforcing the decoration. The actual enforcing is done through a KWin script so users can still disable it. REVIEW: 119062 [1] https://mail.gnome.org/archives/wm-spec-list/2014-June/msg00002.html [2] https://bugzilla.gnome.org/show_bug.cgi?id=729721
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bool m_clientSideDecorated;
QMetaObject::Connection m_edgeRemoveConnection;
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};
inline xcb_window_t Client::wrapperId() const
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{
return m_wrapper;
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}
Add a script to enforce window decorations for GTK windows This is going to be a controversal change. It enforces KWin decorations on all client side decorated windows from GTK+. Unfortunately we are caught between a rock and a hard place. Keeping the status quo means having broken windows and a more or less broken window manager due to GTK+ including the shadow in the windows. This is no solution. Enforcing server side decorations visually breaks the windows. This is also no solution. So why do it? It's our task to provide the best possible user experience and KWin is a window manager which has always done great efforts to fix misbehaving windows. One can think of the focus stealing prevention, the window rules and lately the scripts. The best possible window management experience is our aim. This means we cannot leave the users with the broken windows from GTK. The issues we noticed were reported to GTK+ about 2 months ago and we are working on improving the situation. Unfortunately several issues are not yet addressed and others will only be addressed in the next GTK+ release. We are working on improving the NETWM spec (see [1]) to ensure that the client side decorated windows are not in a broken state. This means the enforcment is a temporary solution and will be re-evaluated with the next GTK release. I would prefer to not have to do such a change, if some of the bugs were fixed or GTK+ would not use client-side-decos on wms not yet supporting those all of this would be a no issue. For a complete list of the problems caused by GTK's decos see bug [2] and the linked bug reports from there. The change is done in a least inversive way in KWin. We just check for the property _GTK_FRAME_EXTENTS and create a Q_PROPERTY in Client for it. If we add support for the frame extents in future we would also need this. So it's not a change just for enforcing the decoration. The actual enforcing is done through a KWin script so users can still disable it. REVIEW: 119062 [1] https://mail.gnome.org/archives/wm-spec-list/2014-June/msg00002.html [2] https://bugzilla.gnome.org/show_bug.cgi?id=729721
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inline bool Client::isClientSideDecorated() const
{
return m_clientSideDecorated;
}
inline bool Client::groupTransient() const
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{
return m_transientForId == rootWindow();
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}
// 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 Client::wasOriginallyGroupTransient() const
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{
return m_originalTransientForId == rootWindow();
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}
inline bool Client::isTransient() const
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{
return m_transientForId != XCB_WINDOW_NONE;
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}
inline const Group* Client::group() const
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{
return in_group;
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}
inline Group* Client::group()
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{
return in_group;
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}
inline TabGroup* Client::tabGroup() const
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{
return tab_group;
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}
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inline bool Client::isShown(bool shaded_is_shown) const
{
return !isMinimized() && (!isShade() || shaded_is_shown) && !hidden &&
(!tabGroup() || tabGroup()->current() == this);
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}
inline bool Client::isHiddenInternal() const
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{
return hidden;
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}
inline ShadeMode Client::shadeMode() const
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{
return shade_mode;
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}
inline QRect Client::geometryRestore() const
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{
return geom_restore;
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}
inline void Client::setGeometryRestore(const QRect &geo)
{
geom_restore = geo;
}
inline MaximizeMode Client::maximizeMode() const
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{
return max_mode;
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}
inline bool Client::isFullScreen() const
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{
return fullscreen_mode != FullScreenNone;
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}
inline bool Client::hasNETSupport() const
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{
return info->hasNETSupport();
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}
inline xcb_colormap_t Client::colormap() const
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{
return m_colormap;
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}
inline int Client::sessionStackingOrder() const
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{
return sm_stacking_order;
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}
inline bool Client::isManaged() const
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{
return m_managed;
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}
inline QSize Client::clientSize() const
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{
return client_size;
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}
inline void Client::plainResize(const QSize& s, ForceGeometry_t force)
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{
plainResize(s.width(), s.height(), force);
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}
inline void Client::resizeWithChecks(int w, int h, AbstractClient::ForceGeometry_t force)
{
resizeWithChecks(w, h, XCB_GRAVITY_BIT_FORGET, force);
}
inline void Client::resizeWithChecks(const QSize& s, xcb_gravity_t gravity, ForceGeometry_t force)
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{
resizeWithChecks(s.width(), s.height(), gravity, force);
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}
inline bool Client::hasUserTimeSupport() const
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{
return info->userTime() != -1U;
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}
inline const WindowRules* Client::rules() const
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{
return &client_rules;
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}
inline xcb_window_t Client::moveResizeGrabWindow() const
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{
return m_moveResizeGrabWindow;
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}
inline const QKeySequence &Client::shortcut() const
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{
return _shortcut;
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}
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inline void Client::removeRule(Rules* rule)
{
client_rules.remove(rule);
}
inline bool Client::hiddenPreview() const
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{
return mapping_state == Kept;
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}
template <typename T>
inline void Client::print(T &stream) const
{
stream << "\'ID:" << window() << ";WMCLASS:" << resourceClass() << ":"
<< resourceName() << ";Caption:" << caption() << "\'";
}
} // namespace
Q_DECLARE_METATYPE(KWin::Client*)
Q_DECLARE_METATYPE(QList<KWin::Client*>)
#endif