kwin/client.cpp
Martin Gräßlin 996ee34e14 Remove the unredirect fullscreen windows functionality
Summary:
Rational: unredirect fullscreen windows is a weird beast. It's intended
to make fullscreen windows "faster" by not compositing that screen. But
that doesn't really work as KWin jumps out of that condition pretty
quickly. E.g. whenever a tooltip window is shown. KWin itself has a
better functionality by supporting to block compositing completely.
The complete code was full of hacks around it to try to ensure that
things don't break.

Overall unredirect fullscreen has always been the odd one. We had it
because a compositor needs to have it, but it never got truly integrated.
E.g. effects don't interact with it properly so that some things randomly
work, others don't. Will it trigger the screenedge, probably yes, but
will it show the highlight: properly no.

By removing the functionality we finally acknowledge that this mode is
not maintained and has not been maintained for years and that we do not
intend to support it better in future. Over the years we tried to make
it more and more hidden: it's disabled for Intel GPUs, because it used
to crash KWin. It's marked as an "expert" option, etc.

It's clearly something we tried to hide from the user that it exists.

For Wayland the whole unredirect infrastructure doesn't make sense
either. There is no such thing as "unredirecting". We might make use
of passing buffers directly to the underlying stack, but that will be
done automatically when we know it can be done, not by some magic is
this a window of specific size.

Test Plan:
Compiles, cannot really test as I am an Intel user who never
had that working.

Reviewers: #kwin, #plasma, #vdg

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D2180
2016-08-04 14:48:35 +02:00

2139 lines
70 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/>.
*********************************************************************/
// own
#include "client.h"
// kwin
#ifdef KWIN_BUILD_ACTIVITIES
#include "activities.h"
#endif
#include "atoms.h"
#include "client_machine.h"
#include "composite.h"
#include "cursor.h"
#include "deleted.h"
#include "focuschain.h"
#include "group.h"
#include "shadow.h"
#include "workspace.h"
#include "screenedge.h"
#include "decorations/decorationbridge.h"
#include "decorations/decoratedclient.h"
#include <KDecoration2/Decoration>
#include <KDecoration2/DecoratedClient>
// KDE
#include <KWindowSystem>
#include <KColorScheme>
// Qt
#include <QApplication>
#include <QDebug>
#include <QFile>
#include <QMouseEvent>
#include <QProcess>
#include <QStandardPaths>
#include <QScriptEngine>
#include <QScriptProgram>
#include <QWhatsThis>
// XLib
#include <X11/Xutil.h>
#include <fixx11h.h>
// system
#include <unistd.h>
#include <signal.h>
// Put all externs before the namespace statement to allow the linker
// to resolve them properly
namespace KWin
{
const long ClientWinMask = XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_KEY_RELEASE |
XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE |
XCB_EVENT_MASK_KEYMAP_STATE |
XCB_EVENT_MASK_BUTTON_MOTION |
XCB_EVENT_MASK_POINTER_MOTION | // need this, too!
XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW |
XCB_EVENT_MASK_FOCUS_CHANGE |
XCB_EVENT_MASK_EXPOSURE |
XCB_EVENT_MASK_STRUCTURE_NOTIFY |
XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT;
// Creating a client:
// - only by calling Workspace::createClient()
// - it creates a new client and calls manage() for it
//
// Destroying a client:
// - destroyClient() - only when the window itself has been destroyed
// - releaseWindow() - the window is kept, only the client itself is destroyed
/**
* \class Client client.h
* \brief The Client class encapsulates a window decoration frame.
*/
/**
* This ctor is "dumb" - it only initializes data. All the real initialization
* is done in manage().
*/
Client::Client()
: AbstractClient()
, m_client()
, m_wrapper()
, m_frame()
, m_activityUpdatesBlocked(false)
, m_blockedActivityUpdatesRequireTransients(false)
, m_moveResizeGrabWindow()
, move_resize_has_keyboard_grab(false)
, m_managed(false)
, m_transientForId(XCB_WINDOW_NONE)
, m_originalTransientForId(XCB_WINDOW_NONE)
, shade_below(NULL)
, m_motif(atoms->motif_wm_hints)
, blocks_compositing(false)
, shadeHoverTimer(NULL)
, m_colormap(XCB_COLORMAP_NONE)
, in_group(NULL)
, tab_group(NULL)
, ping_timer(NULL)
, m_killHelperPID(0)
, m_pingTimestamp(XCB_TIME_CURRENT_TIME)
, m_userTime(XCB_TIME_CURRENT_TIME) // Not known yet
, allowed_actions(0)
, shade_geometry_change(false)
, sm_stacking_order(-1)
, activitiesDefined(false)
, needsSessionInteract(false)
, needsXWindowMove(false)
, m_decoInputExtent()
, m_focusOutTimer(nullptr)
, m_clientSideDecorated(false)
{
// TODO: Do all as initialization
syncRequest.counter = syncRequest.alarm = XCB_NONE;
syncRequest.timeout = syncRequest.failsafeTimeout = NULL;
syncRequest.lastTimestamp = xTime();
syncRequest.isPending = false;
// Set the initial mapping state
mapping_state = Withdrawn;
info = NULL;
shade_mode = ShadeNone;
deleting = false;
fullscreen_mode = FullScreenNone;
hidden = false;
noborder = false;
app_noborder = false;
ignore_focus_stealing = false;
check_active_modal = false;
max_mode = MaximizeRestore;
//Client to workspace connections require that each
//client constructed be connected to the workspace wrapper
geom = QRect(0, 0, 100, 100); // So that decorations don't start with size being (0,0)
client_size = QSize(100, 100);
ready_for_painting = false; // wait for first damage or sync reply
connect(clientMachine(), &ClientMachine::localhostChanged, this, &Client::updateCaption);
connect(options, &Options::condensedTitleChanged, this, &Client::updateCaption);
connect(this, &Client::moveResizeCursorChanged, this, [this] (Qt::CursorShape cursor) {
xcb_cursor_t nativeCursor = Cursor::x11Cursor(cursor);
m_frame.defineCursor(nativeCursor);
if (m_decoInputExtent.isValid())
m_decoInputExtent.defineCursor(nativeCursor);
if (isMoveResize()) {
// changing window attributes doesn't change cursor if there's pointer grab active
xcb_change_active_pointer_grab(connection(), nativeCursor, xTime(),
XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION | XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW);
}
});
// SELI TODO: Initialize xsizehints??
}
/**
* "Dumb" destructor.
*/
Client::~Client()
{
if (m_killHelperPID && !::kill(m_killHelperPID, 0)) { // means the process is alive
::kill(m_killHelperPID, SIGTERM);
m_killHelperPID = 0;
}
//SWrapper::Client::clientRelease(this);
if (syncRequest.alarm != XCB_NONE)
xcb_sync_destroy_alarm(connection(), syncRequest.alarm);
assert(!isMoveResize());
assert(m_client == XCB_WINDOW_NONE);
assert(m_wrapper == XCB_WINDOW_NONE);
//assert( frameId() == None );
assert(!check_active_modal);
for (auto it = m_connections.constBegin(); it != m_connections.constEnd(); ++it) {
disconnect(*it);
}
}
// Use destroyClient() or releaseWindow(), Client instances cannot be deleted directly
void Client::deleteClient(Client* c)
{
delete c;
}
/**
* Releases the window. The client has done its job and the window is still existing.
*/
void Client::releaseWindow(bool on_shutdown)
{
assert(!deleting);
deleting = true;
destroyWindowManagementInterface();
Deleted* del = NULL;
if (!on_shutdown) {
del = Deleted::create(this);
}
if (isMoveResize())
emit clientFinishUserMovedResized(this);
emit windowClosed(this, del);
finishCompositing();
RuleBook::self()->discardUsed(this, true); // Remove ForceTemporarily rules
StackingUpdatesBlocker blocker(workspace());
if (isMoveResize())
leaveMoveResize();
finishWindowRules();
blockGeometryUpdates();
if (isOnCurrentDesktop() && isShown(true))
addWorkspaceRepaint(visibleRect());
// Grab X during the release to make removing of properties, setting to withdrawn state
// and repareting to root an atomic operation (http://lists.kde.org/?l=kde-devel&m=116448102901184&w=2)
grabXServer();
exportMappingState(WithdrawnState);
setModal(false); // Otherwise its mainwindow wouldn't get focus
hidden = true; // So that it's not considered visible anymore (can't use hideClient(), it would set flags)
if (!on_shutdown)
workspace()->clientHidden(this);
m_frame.unmap(); // Destroying decoration would cause ugly visual effect
destroyDecoration();
cleanGrouping();
if (!on_shutdown) {
workspace()->removeClient(this);
// Only when the window is being unmapped, not when closing down KWin (NETWM sections 5.5,5.7)
info->setDesktop(0);
info->setState(0, info->state()); // Reset all state flags
} else
untab();
xcb_connection_t *c = connection();
m_client.deleteProperty(atoms->kde_net_wm_user_creation_time);
m_client.deleteProperty(atoms->net_frame_extents);
m_client.deleteProperty(atoms->kde_net_wm_frame_strut);
m_client.reparent(rootWindow(), x(), y());
xcb_change_save_set(c, XCB_SET_MODE_DELETE, m_client);
m_client.selectInput(XCB_EVENT_MASK_NO_EVENT);
if (on_shutdown)
// Map the window, so it can be found after another WM is started
m_client.map();
// TODO: Preserve minimized, shaded etc. state?
else // Make sure it's not mapped if the app unmapped it (#65279). The app
// may do map+unmap before we initially map the window by calling rawShow() from manage().
m_client.unmap();
m_client.reset();
m_wrapper.reset();
m_frame.reset();
//frame = None;
unblockGeometryUpdates(); // Don't use GeometryUpdatesBlocker, it would now set the geometry
if (!on_shutdown) {
disownDataPassedToDeleted();
del->unrefWindow();
}
checkNonExistentClients();
deleteClient(this);
ungrabXServer();
}
/**
* Like releaseWindow(), but this one is called when the window has been already destroyed
* (E.g. The application closed it)
*/
void Client::destroyClient()
{
assert(!deleting);
deleting = true;
destroyWindowManagementInterface();
Deleted* del = Deleted::create(this);
if (isMoveResize())
emit clientFinishUserMovedResized(this);
emit windowClosed(this, del);
finishCompositing(ReleaseReason::Destroyed);
RuleBook::self()->discardUsed(this, true); // Remove ForceTemporarily rules
StackingUpdatesBlocker blocker(workspace());
if (isMoveResize())
leaveMoveResize();
finishWindowRules();
blockGeometryUpdates();
if (isOnCurrentDesktop() && isShown(true))
addWorkspaceRepaint(visibleRect());
setModal(false);
hidden = true; // So that it's not considered visible anymore
workspace()->clientHidden(this);
destroyDecoration();
cleanGrouping();
workspace()->removeClient(this);
m_client.reset(); // invalidate
m_wrapper.reset();
m_frame.reset();
//frame = None;
unblockGeometryUpdates(); // Don't use GeometryUpdatesBlocker, it would now set the geometry
disownDataPassedToDeleted();
del->unrefWindow();
checkNonExistentClients();
deleteClient(this);
}
void Client::updateInputWindow()
{
if (!Xcb::Extensions::self()->isShapeInputAvailable())
return;
QRegion region;
if (!noBorder() && isDecorated()) {
const QMargins &r = decoration()->resizeOnlyBorders();
const int left = r.left();
const int top = r.top();
const int right = r.right();
const int bottom = r.bottom();
if (left != 0 || top != 0 || right != 0 || bottom != 0) {
region = QRegion(-left,
-top,
decoration()->size().width() + left + right,
decoration()->size().height() + top + bottom);
region = region.subtracted(decoration()->rect());
}
}
if (region.isEmpty()) {
m_decoInputExtent.reset();
return;
}
QRect bounds = region.boundingRect();
input_offset = bounds.topLeft();
// Move the bounding rect to screen coordinates
bounds.translate(geometry().topLeft());
// Move the region to input window coordinates
region.translate(-input_offset);
if (!m_decoInputExtent.isValid()) {
const uint32_t mask = XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK;
const uint32_t values[] = {true,
XCB_EVENT_MASK_ENTER_WINDOW |
XCB_EVENT_MASK_LEAVE_WINDOW |
XCB_EVENT_MASK_BUTTON_PRESS |
XCB_EVENT_MASK_BUTTON_RELEASE |
XCB_EVENT_MASK_POINTER_MOTION
};
m_decoInputExtent.create(bounds, XCB_WINDOW_CLASS_INPUT_ONLY, mask, values);
if (mapping_state == Mapped)
m_decoInputExtent.map();
} else {
m_decoInputExtent.setGeometry(bounds);
}
const QVector<xcb_rectangle_t> rects = Xcb::regionToRects(region);
xcb_shape_rectangles(connection(), XCB_SHAPE_SO_SET, XCB_SHAPE_SK_INPUT, XCB_CLIP_ORDERING_UNSORTED,
m_decoInputExtent, 0, 0, rects.count(), rects.constData());
}
void Client::updateDecoration(bool check_workspace_pos, bool force)
{
if (!force &&
((!isDecorated() && noBorder()) || (isDecorated() && !noBorder())))
return;
QRect oldgeom = geometry();
QRect oldClientGeom = oldgeom.adjusted(borderLeft(), borderTop(), -borderRight(), -borderBottom());
blockGeometryUpdates(true);
if (force)
destroyDecoration();
if (!noBorder()) {
createDecoration(oldgeom);
} else
destroyDecoration();
getShadow();
if (check_workspace_pos)
checkWorkspacePosition(oldgeom, -2, oldClientGeom);
updateInputWindow();
blockGeometryUpdates(false);
updateFrameExtents();
}
void Client::createDecoration(const QRect& oldgeom)
{
KDecoration2::Decoration *decoration = Decoration::DecorationBridge::self()->createDecoration(this);
if (decoration) {
QMetaObject::invokeMethod(decoration, "update", Qt::QueuedConnection);
connect(decoration, &KDecoration2::Decoration::shadowChanged, this, &Toplevel::getShadow);
connect(decoration, &KDecoration2::Decoration::resizeOnlyBordersChanged, this, &Client::updateInputWindow);
connect(decoration, &KDecoration2::Decoration::bordersChanged, this,
[this]() {
updateFrameExtents();
GeometryUpdatesBlocker blocker(this);
// TODO: this is obviously idempotent
// calculateGravitation(true) would have to operate on the old border sizes
// move(calculateGravitation(true));
// move(calculateGravitation(false));
QRect oldgeom = geometry();
plainResize(sizeForClientSize(clientSize()), ForceGeometrySet);
if (!isShade())
checkWorkspacePosition(oldgeom);
emit geometryShapeChanged(this, oldgeom);
}
);
}
setDecoration(decoration);
move(calculateGravitation(false));
plainResize(sizeForClientSize(clientSize()), ForceGeometrySet);
if (Compositor::compositing()) {
discardWindowPixmap();
}
emit geometryShapeChanged(this, oldgeom);
}
void Client::destroyDecoration()
{
QRect oldgeom = geometry();
if (isDecorated()) {
QPoint grav = calculateGravitation(true);
AbstractClient::destroyDecoration();
plainResize(sizeForClientSize(clientSize()), ForceGeometrySet);
move(grav);
if (compositing())
discardWindowPixmap();
if (!deleting) {
emit geometryShapeChanged(this, oldgeom);
}
}
m_decoInputExtent.reset();
}
void Client::layoutDecorationRects(QRect &left, QRect &top, QRect &right, QRect &bottom) const
{
if (!isDecorated()) {
return;
}
QRect r = decoration()->rect();
NETStrut strut = info->frameOverlap();
// Ignore the overlap strut when compositing is disabled
if (!compositing())
strut.left = strut.top = strut.right = strut.bottom = 0;
else if (strut.left == -1 && strut.top == -1 && strut.right == -1 && strut.bottom == -1) {
top = QRect(r.x(), r.y(), r.width(), r.height() / 3);
left = QRect(r.x(), r.y() + top.height(), width() / 2, r.height() / 3);
right = QRect(r.x() + left.width(), r.y() + top.height(), r.width() - left.width(), left.height());
bottom = QRect(r.x(), r.y() + top.height() + left.height(), r.width(), r.height() - left.height() - top.height());
return;
}
top = QRect(r.x(), r.y(), r.width(), borderTop() + strut.top);
bottom = QRect(r.x(), r.y() + r.height() - borderBottom() - strut.bottom,
r.width(), borderBottom() + strut.bottom);
left = QRect(r.x(), r.y() + top.height(),
borderLeft() + strut.left, r.height() - top.height() - bottom.height());
right = QRect(r.x() + r.width() - borderRight() - strut.right, r.y() + top.height(),
borderRight() + strut.right, r.height() - top.height() - bottom.height());
}
QRect Client::transparentRect() const
{
if (isShade())
return QRect();
NETStrut strut = info->frameOverlap();
// Ignore the strut when compositing is disabled or the decoration doesn't support it
if (!compositing())
strut.left = strut.top = strut.right = strut.bottom = 0;
else if (strut.left == -1 && strut.top == -1 && strut.right == -1 && strut.bottom == -1)
return QRect();
const QRect r = QRect(clientPos(), clientSize())
.adjusted(strut.left, strut.top, -strut.right, -strut.bottom);
if (r.isValid())
return r;
return QRect();
}
void Client::detectNoBorder()
{
if (shape()) {
noborder = true;
app_noborder = true;
return;
}
switch(windowType()) {
case NET::Desktop :
case NET::Dock :
case NET::TopMenu :
case NET::Splash :
case NET::Notification :
case NET::OnScreenDisplay :
noborder = true;
app_noborder = true;
break;
case NET::Unknown :
case NET::Normal :
case NET::Toolbar :
case NET::Menu :
case NET::Dialog :
case NET::Utility :
noborder = false;
break;
default:
abort();
}
// NET::Override is some strange beast without clear definition, usually
// just meaning "noborder", so let's treat it only as such flag, and ignore it as
// a window type otherwise (SUPPORTED_WINDOW_TYPES_MASK doesn't include it)
if (info->windowType(NET::OverrideMask) == NET::Override) {
noborder = true;
app_noborder = true;
}
}
void Client::updateFrameExtents()
{
NETStrut strut;
strut.left = borderLeft();
strut.right = borderRight();
strut.top = borderTop();
strut.bottom = borderBottom();
info->setFrameExtents(strut);
}
Xcb::Property Client::fetchGtkFrameExtents() const
{
return Xcb::Property(false, m_client, atoms->gtk_frame_extents, XCB_ATOM_CARDINAL, 0, 4);
}
void Client::readGtkFrameExtents(Xcb::Property &prop)
{
m_clientSideDecorated = !prop.isNull() && prop->type != 0;
emit clientSideDecoratedChanged();
}
void Client::detectGtkFrameExtents()
{
Xcb::Property prop = fetchGtkFrameExtents();
readGtkFrameExtents(prop);
}
/**
* Resizes the decoration, and makes sure the decoration widget gets resize event
* even if the size hasn't changed. This is needed to make sure the decoration
* re-layouts (e.g. when maximization state changes,
* the decoration may alter some borders, but the actual size
* of the decoration stays the same).
*/
void Client::resizeDecoration()
{
triggerDecorationRepaint();
updateInputWindow();
}
bool Client::noBorder() const
{
return noborder || isFullScreen();
}
bool Client::userCanSetNoBorder() const
{
return !isFullScreen() && !isShade() && !tabGroup();
}
void Client::setNoBorder(bool set)
{
if (!userCanSetNoBorder())
return;
set = rules()->checkNoBorder(set);
if (noborder == set)
return;
noborder = set;
updateDecoration(true, false);
updateWindowRules(Rules::NoBorder);
}
void Client::checkNoBorder()
{
setNoBorder(app_noborder);
}
bool Client::wantsShadowToBeRendered() const
{
return !isFullScreen() && maximizeMode() != MaximizeFull;
}
void Client::updateShape()
{
if (shape()) {
// Workaround for #19644 - Shaped windows shouldn't have decoration
if (!app_noborder) {
// Only when shape is detected for the first time, still let the user to override
app_noborder = true;
noborder = rules()->checkNoBorder(true);
updateDecoration(true);
}
if (noBorder()) {
xcb_shape_combine(connection(), XCB_SHAPE_SO_SET, XCB_SHAPE_SK_BOUNDING, XCB_SHAPE_SK_BOUNDING,
frameId(), clientPos().x(), clientPos().y(), window());
}
} else if (app_noborder) {
xcb_shape_mask(connection(), XCB_SHAPE_SO_SET, XCB_SHAPE_SK_BOUNDING, frameId(), 0, 0, XCB_PIXMAP_NONE);
detectNoBorder();
app_noborder = noborder;
noborder = rules()->checkNoBorder(noborder || m_motif.noBorder());
updateDecoration(true);
}
// Decoration mask (i.e. 'else' here) setting is done in setMask()
// when the decoration calls it or when the decoration is created/destroyed
updateInputShape();
if (compositing()) {
addRepaintFull();
addWorkspaceRepaint(visibleRect()); // In case shape change removes part of this window
}
emit geometryShapeChanged(this, geometry());
}
static Xcb::Window shape_helper_window(XCB_WINDOW_NONE);
void Client::cleanupX11()
{
shape_helper_window.reset();
}
void Client::updateInputShape()
{
if (hiddenPreview()) // Sets it to none, don't change
return;
if (Xcb::Extensions::self()->isShapeInputAvailable()) {
// There appears to be no way to find out if a window has input
// shape set or not, so always propagate the input shape
// (it's the same like the bounding shape by default).
// Also, build the shape using a helper window, not directly
// in the frame window, because the sequence set-shape-to-frame,
// remove-shape-of-client, add-input-shape-of-client has the problem
// that after the second step there's a hole in the input shape
// until the real shape of the client is added and that can make
// the window lose focus (which is a problem with mouse focus policies)
// TODO: It seems there is, after all - XShapeGetRectangles() - but maybe this is better
if (!shape_helper_window.isValid())
shape_helper_window.create(QRect(0, 0, 1, 1));
shape_helper_window.resize(width(), height());
xcb_connection_t *c = connection();
xcb_shape_combine(c, XCB_SHAPE_SO_SET, XCB_SHAPE_SK_INPUT, XCB_SHAPE_SK_BOUNDING,
shape_helper_window, 0, 0, frameId());
xcb_shape_combine(c, XCB_SHAPE_SO_SUBTRACT, XCB_SHAPE_SK_INPUT, XCB_SHAPE_SK_BOUNDING,
shape_helper_window, clientPos().x(), clientPos().y(), window());
xcb_shape_combine(c, XCB_SHAPE_SO_UNION, XCB_SHAPE_SK_INPUT, XCB_SHAPE_SK_INPUT,
shape_helper_window, clientPos().x(), clientPos().y(), window());
xcb_shape_combine(c, XCB_SHAPE_SO_SET, XCB_SHAPE_SK_INPUT, XCB_SHAPE_SK_INPUT,
frameId(), 0, 0, shape_helper_window);
}
}
void Client::hideClient(bool hide)
{
if (hidden == hide)
return;
hidden = hide;
updateVisibility();
}
/**
* Returns whether the window is minimizable or not
*/
bool Client::isMinimizable() const
{
if (isSpecialWindow() && !isTransient())
return false;
if (!rules()->checkMinimize(true))
return false;
if (isTransient()) {
// #66868 - Let other xmms windows be minimized when the mainwindow is minimized
bool shown_mainwindow = false;
auto mainclients = mainClients();
for (auto it = mainclients.constBegin();
it != mainclients.constEnd();
++it)
if ((*it)->isShown(true))
shown_mainwindow = true;
if (!shown_mainwindow)
return true;
}
#if 0
// This is here because kicker's taskbar doesn't provide separate entries
// for windows with an explicitly given parent
// TODO: perhaps this should be redone
// Disabled for now, since at least modal dialogs should be minimizable
// (resulting in the mainwindow being minimized too).
if (transientFor() != NULL)
return false;
#endif
if (!wantsTabFocus()) // SELI, TODO: - NET::Utility? why wantsTabFocus() - skiptaskbar? ?
return false;
return true;
}
void Client::doMinimize()
{
updateVisibility();
updateAllowedActions();
workspace()->updateMinimizedOfTransients(this);
// Update states of all other windows in this group
if (tabGroup())
tabGroup()->updateStates(this, TabGroup::Minimized);
}
QRect Client::iconGeometry() const
{
NETRect r = info->iconGeometry();
QRect geom(r.pos.x, r.pos.y, r.size.width, r.size.height);
if (geom.isValid())
return geom;
else {
// Check all mainwindows of this window (recursively)
foreach (AbstractClient * amainwin, mainClients()) {
Client *mainwin = dynamic_cast<Client*>(amainwin);
if (!mainwin) {
continue;
}
geom = mainwin->iconGeometry();
if (geom.isValid())
return geom;
}
// No mainwindow (or their parents) with icon geometry was found
return QRect();
}
}
bool Client::isShadeable() const
{
return !isSpecialWindow() && !noBorder() && (rules()->checkShade(ShadeNormal) != rules()->checkShade(ShadeNone));
}
void Client::setShade(ShadeMode mode)
{
if (mode == ShadeHover && isMove())
return; // causes geometry breaks and is probably nasty
if (isSpecialWindow() || noBorder())
mode = ShadeNone;
mode = rules()->checkShade(mode);
if (shade_mode == mode)
return;
bool was_shade = isShade();
ShadeMode was_shade_mode = shade_mode;
shade_mode = mode;
// Decorations may turn off some borders when shaded
// this has to happen _before_ the tab alignment since it will restrict the minimum geometry
#if 0
if (decoration)
decoration->borders(border_left, border_right, border_top, border_bottom);
#endif
// Update states of all other windows in this group
if (tabGroup())
tabGroup()->updateStates(this, TabGroup::Shaded);
if (was_shade == isShade()) {
// Decoration may want to update after e.g. hover-shade changes
emit shadeChanged();
return; // No real change in shaded state
}
assert(isDecorated()); // noborder windows can't be shaded
GeometryUpdatesBlocker blocker(this);
// TODO: All this unmapping, resizing etc. feels too much duplicated from elsewhere
if (isShade()) {
// shade_mode == ShadeNormal
addWorkspaceRepaint(visibleRect());
// Shade
shade_geometry_change = true;
QSize s(sizeForClientSize(QSize(clientSize())));
s.setHeight(borderTop() + borderBottom());
m_wrapper.selectInput(ClientWinMask); // Avoid getting UnmapNotify
m_wrapper.unmap();
m_client.unmap();
m_wrapper.selectInput(ClientWinMask | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY);
exportMappingState(IconicState);
plainResize(s);
shade_geometry_change = false;
if (was_shade_mode == ShadeHover) {
if (shade_below && workspace()->stackingOrder().indexOf(shade_below) > -1)
workspace()->restack(this, shade_below, true);
if (isActive())
workspace()->activateNextClient(this);
} else if (isActive()) {
workspace()->focusToNull();
}
} else {
shade_geometry_change = true;
if (decoratedClient())
decoratedClient()->signalShadeChange();
QSize s(sizeForClientSize(clientSize()));
shade_geometry_change = false;
plainResize(s);
geom_restore = geometry();
if ((shade_mode == ShadeHover || shade_mode == ShadeActivated) && rules()->checkAcceptFocus(info->input()))
setActive(true);
if (shade_mode == ShadeHover) {
ToplevelList order = workspace()->stackingOrder();
// invalidate, since "this" could be the topmost toplevel and shade_below dangeling
shade_below = NULL;
// this is likely related to the index parameter?!
for (int idx = order.indexOf(this) + 1; idx < order.count(); ++idx) {
shade_below = qobject_cast<Client*>(order.at(idx));
if (shade_below) {
break;
}
}
if (shade_below && shade_below->isNormalWindow())
workspace()->raiseClient(this);
else
shade_below = NULL;
}
m_wrapper.map();
m_client.map();
exportMappingState(NormalState);
if (isActive())
workspace()->requestFocus(this);
}
info->setState(isShade() ? NET::Shaded : NET::States(0), NET::Shaded);
info->setState(isShown(false) ? NET::States(0) : NET::Hidden, NET::Hidden);
discardWindowPixmap();
updateVisibility();
updateAllowedActions();
updateWindowRules(Rules::Shade);
emit shadeChanged();
}
void Client::shadeHover()
{
setShade(ShadeHover);
cancelShadeHoverTimer();
}
void Client::shadeUnhover()
{
if (!tabGroup() || tabGroup()->current() == this ||
tabGroup()->current()->shadeMode() == ShadeNormal)
setShade(ShadeNormal);
cancelShadeHoverTimer();
}
void Client::cancelShadeHoverTimer()
{
delete shadeHoverTimer;
shadeHoverTimer = 0;
}
void Client::toggleShade()
{
// If the mode is ShadeHover or ShadeActive, cancel shade too
setShade(shade_mode == ShadeNone ? ShadeNormal : ShadeNone);
}
void Client::updateVisibility()
{
if (deleting)
return;
if (hidden && isCurrentTab()) {
info->setState(NET::Hidden, NET::Hidden);
setSkipTaskbar(true); // Also hide from taskbar
if (compositing() && options->hiddenPreviews() == HiddenPreviewsAlways)
internalKeep();
else
internalHide();
return;
}
if (isCurrentTab())
setSkipTaskbar(originalSkipTaskbar()); // Reset from 'hidden'
if (isMinimized()) {
info->setState(NET::Hidden, NET::Hidden);
if (compositing() && options->hiddenPreviews() == HiddenPreviewsAlways)
internalKeep();
else
internalHide();
return;
}
info->setState(0, NET::Hidden);
if (!isOnCurrentDesktop()) {
if (compositing() && options->hiddenPreviews() != HiddenPreviewsNever)
internalKeep();
else
internalHide();
return;
}
if (!isOnCurrentActivity()) {
if (compositing() && options->hiddenPreviews() != HiddenPreviewsNever)
internalKeep();
else
internalHide();
return;
}
internalShow();
}
/**
* Sets the client window's mapping state. Possible values are
* WithdrawnState, IconicState, NormalState.
*/
void Client::exportMappingState(int s)
{
assert(m_client != XCB_WINDOW_NONE);
assert(!deleting || s == WithdrawnState);
if (s == WithdrawnState) {
m_client.deleteProperty(atoms->wm_state);
return;
}
assert(s == NormalState || s == IconicState);
int32_t data[2];
data[0] = s;
data[1] = XCB_NONE;
m_client.changeProperty(atoms->wm_state, atoms->wm_state, 32, 2, data);
}
void Client::internalShow()
{
if (mapping_state == Mapped)
return;
MappingState old = mapping_state;
mapping_state = Mapped;
if (old == Unmapped || old == Withdrawn)
map();
if (old == Kept) {
m_decoInputExtent.map();
updateHiddenPreview();
}
emit windowShown(this);
}
void Client::internalHide()
{
if (mapping_state == Unmapped)
return;
MappingState old = mapping_state;
mapping_state = Unmapped;
if (old == Mapped || old == Kept)
unmap();
if (old == Kept)
updateHiddenPreview();
addWorkspaceRepaint(visibleRect());
workspace()->clientHidden(this);
emit windowHidden(this);
}
void Client::internalKeep()
{
assert(compositing());
if (mapping_state == Kept)
return;
MappingState old = mapping_state;
mapping_state = Kept;
if (old == Unmapped || old == Withdrawn)
map();
m_decoInputExtent.unmap();
if (isActive())
workspace()->focusToNull(); // get rid of input focus, bug #317484
updateHiddenPreview();
addWorkspaceRepaint(visibleRect());
workspace()->clientHidden(this);
}
/**
* Maps (shows) the client. Note that it is mapping state of the frame,
* not necessarily the client window itself (i.e. a shaded window is here
* considered mapped, even though it is in IconicState).
*/
void Client::map()
{
// XComposite invalidates backing pixmaps on unmap (minimize, different
// virtual desktop, etc.). We kept the last known good pixmap around
// for use in effects, but now we want to have access to the new pixmap
if (compositing())
discardWindowPixmap();
m_frame.map();
if (!isShade()) {
m_wrapper.map();
m_client.map();
m_decoInputExtent.map();
exportMappingState(NormalState);
} else
exportMappingState(IconicState);
addLayerRepaint(visibleRect());
}
/**
* Unmaps the client. Again, this is about the frame.
*/
void Client::unmap()
{
// Here it may look like a race condition, as some other client might try to unmap
// the window between these two XSelectInput() calls. However, they're supposed to
// use XWithdrawWindow(), which also sends a synthetic event to the root window,
// which won't be missed, so this shouldn't be a problem. The chance the real UnmapNotify
// will be missed is also very minimal, so I don't think it's needed to grab the server
// here.
m_wrapper.selectInput(ClientWinMask); // Avoid getting UnmapNotify
m_frame.unmap();
m_wrapper.unmap();
m_client.unmap();
m_decoInputExtent.unmap();
m_wrapper.selectInput(ClientWinMask | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY);
exportMappingState(IconicState);
}
/**
* XComposite doesn't keep window pixmaps of unmapped windows, which means
* there wouldn't be any previews of windows that are minimized or on another
* virtual desktop. Therefore rawHide() actually keeps such windows mapped.
* However special care needs to be taken so that such windows don't interfere.
* Therefore they're put very low in the stacking order and they have input shape
* set to none, which hopefully is enough. If there's no input shape available,
* then it's hoped that there will be some other desktop above it *shrug*.
* Using normal shape would be better, but that'd affect other things, e.g. painting
* of the actual preview.
*/
void Client::updateHiddenPreview()
{
if (hiddenPreview()) {
workspace()->forceRestacking();
if (Xcb::Extensions::self()->isShapeInputAvailable()) {
xcb_shape_rectangles(connection(), XCB_SHAPE_SO_SET, XCB_SHAPE_SK_INPUT,
XCB_CLIP_ORDERING_UNSORTED, frameId(), 0, 0, 0, NULL);
}
} else {
workspace()->forceRestacking();
updateInputShape();
}
}
void Client::sendClientMessage(xcb_window_t w, xcb_atom_t a, xcb_atom_t protocol, uint32_t data1, uint32_t data2, uint32_t data3, xcb_timestamp_t timestamp)
{
xcb_client_message_event_t ev;
memset(&ev, 0, sizeof(ev));
ev.response_type = XCB_CLIENT_MESSAGE;
ev.window = w;
ev.type = a;
ev.format = 32;
ev.data.data32[0] = protocol;
ev.data.data32[1] = timestamp;
ev.data.data32[2] = data1;
ev.data.data32[3] = data2;
ev.data.data32[4] = data3;
uint32_t eventMask = 0;
if (w == rootWindow()) {
eventMask = XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT; // Magic!
}
xcb_send_event(connection(), false, w, eventMask, reinterpret_cast<const char*>(&ev));
xcb_flush(connection());
}
/**
* Returns whether the window may be closed (have a close button)
*/
bool Client::isCloseable() const
{
return rules()->checkCloseable(m_motif.close() && !isSpecialWindow());
}
/**
* Closes the window by either sending a delete_window message or using XKill.
*/
void Client::closeWindow()
{
if (!isCloseable())
return;
// Update user time, because the window may create a confirming dialog.
updateUserTime();
if (info->supportsProtocol(NET::DeleteWindowProtocol)) {
sendClientMessage(window(), atoms->wm_protocols, atoms->wm_delete_window);
pingWindow();
} else // Client will not react on wm_delete_window. We have not choice
// but destroy his connection to the XServer.
killWindow();
}
/**
* Kills the window via XKill
*/
void Client::killWindow()
{
qCDebug(KWIN_CORE) << "Client::killWindow():" << caption();
killProcess(false);
m_client.kill(); // Always kill this client at the server
destroyClient();
}
/**
* Send a ping to the window using _NET_WM_PING if possible if it
* doesn't respond within a reasonable time, it will be killed.
*/
void Client::pingWindow()
{
if (!info->supportsProtocol(NET::PingProtocol))
return; // Can't ping :(
if (options->killPingTimeout() == 0)
return; // Turned off
if (ping_timer != NULL)
return; // Pinging already
ping_timer = new QTimer(this);
connect(ping_timer, &QTimer::timeout, this,
[this]() {
qCDebug(KWIN_CORE) << "Ping timeout:" << caption();
ping_timer->deleteLater();
ping_timer = nullptr;
killProcess(true, m_pingTimestamp);
}
);
ping_timer->setSingleShot(true);
ping_timer->start(options->killPingTimeout());
m_pingTimestamp = xTime();
workspace()->sendPingToWindow(window(), m_pingTimestamp);
}
void Client::gotPing(xcb_timestamp_t timestamp)
{
// Just plain compare is not good enough because of 64bit and truncating and whatnot
if (NET::timestampCompare(timestamp, m_pingTimestamp) != 0)
return;
delete ping_timer;
ping_timer = NULL;
if (m_killHelperPID && !::kill(m_killHelperPID, 0)) { // means the process is alive
::kill(m_killHelperPID, SIGTERM);
m_killHelperPID = 0;
}
}
void Client::killProcess(bool ask, xcb_timestamp_t timestamp)
{
if (m_killHelperPID && !::kill(m_killHelperPID, 0)) // means the process is alive
return;
Q_ASSERT(!ask || timestamp != XCB_TIME_CURRENT_TIME);
pid_t pid = info->pid();
if (pid <= 0 || clientMachine()->hostName().isEmpty()) // Needed properties missing
return;
qCDebug(KWIN_CORE) << "Kill process:" << pid << "(" << clientMachine()->hostName() << ")";
if (!ask) {
if (!clientMachine()->isLocal()) {
QStringList lst;
lst << QString::fromUtf8(clientMachine()->hostName()) << QStringLiteral("kill") << QString::number(pid);
QProcess::startDetached(QStringLiteral("xon"), lst);
} else
::kill(pid, SIGTERM);
} else {
QString hostname = clientMachine()->isLocal() ? QStringLiteral("localhost") : QString::fromUtf8(clientMachine()->hostName());
QProcess::startDetached(QStringLiteral(KWIN_KILLER_BIN),
QStringList() << QStringLiteral("--pid") << QString::number(unsigned(pid)) << QStringLiteral("--hostname") << hostname
<< QStringLiteral("--windowname") << caption()
<< QStringLiteral("--applicationname") << QString::fromUtf8(resourceClass())
<< QStringLiteral("--wid") << QString::number(window())
<< QStringLiteral("--timestamp") << QString::number(timestamp),
QString(), &m_killHelperPID);
}
}
void Client::doSetSkipTaskbar()
{
info->setState(skipTaskbar() ? NET::SkipTaskbar : NET::States(0), NET::SkipTaskbar);
}
void Client::doSetSkipPager()
{
info->setState(skipPager() ? NET::SkipPager : NET::States(0), NET::SkipPager);
}
void Client::doSetDesktop(int desktop, int was_desk)
{
Q_UNUSED(desktop)
Q_UNUSED(was_desk)
updateVisibility();
// Update states of all other windows in this group
if (tabGroup())
tabGroup()->updateStates(this, TabGroup::Desktop);
}
/**
* Sets whether the client is on @p activity.
* If you remove it from its last activity, then it's on all activities.
*
* Note: If it was on all activities and you try to remove it from one, nothing will happen;
* I don't think that's an important enough use case to handle here.
*/
void Client::setOnActivity(const QString &activity, bool enable)
{
#ifdef KWIN_BUILD_ACTIVITIES
if (! Activities::self()) {
return;
}
QStringList newActivitiesList = activities();
if (newActivitiesList.contains(activity) == enable) //nothing to do
return;
if (enable) {
QStringList allActivities = Activities::self()->all();
if (!allActivities.contains(activity)) //bogus ID
return;
newActivitiesList.append(activity);
} else
newActivitiesList.removeOne(activity);
setOnActivities(newActivitiesList);
#else
Q_UNUSED(activity)
Q_UNUSED(enable)
#endif
}
/**
* set exactly which activities this client is on
*/
void Client::setOnActivities(QStringList newActivitiesList)
{
#ifdef KWIN_BUILD_ACTIVITIES
if (!Activities::self()) {
return;
}
QString joinedActivitiesList = newActivitiesList.join(QStringLiteral(","));
joinedActivitiesList = rules()->checkActivity(joinedActivitiesList, false);
newActivitiesList = joinedActivitiesList.split(u',', QString::SkipEmptyParts);
QStringList allActivities = Activities::self()->all();
if (// If we got the request to be on all activities explicitly
newActivitiesList.isEmpty() || joinedActivitiesList == Activities::nullUuid() ||
// If we got a list of activities that covers all activities
(newActivitiesList.count() > 1 && newActivitiesList.count() == allActivities.count())) {
activityList.clear();
const QByteArray nullUuid = Activities::nullUuid().toUtf8();
m_client.changeProperty(atoms->activities, XCB_ATOM_STRING, 8, nullUuid.length(), nullUuid.constData());
} else {
QByteArray joined = joinedActivitiesList.toAscii();
activityList = newActivitiesList;
m_client.changeProperty(atoms->activities, XCB_ATOM_STRING, 8, joined.length(), joined.constData());
}
updateActivities(false);
#else
Q_UNUSED(newActivitiesList)
#endif
}
void Client::blockActivityUpdates(bool b)
{
if (b) {
++m_activityUpdatesBlocked;
} else {
Q_ASSERT(m_activityUpdatesBlocked);
--m_activityUpdatesBlocked;
if (!m_activityUpdatesBlocked)
updateActivities(m_blockedActivityUpdatesRequireTransients);
}
}
/**
* update after activities changed
*/
void Client::updateActivities(bool includeTransients)
{
if (m_activityUpdatesBlocked) {
m_blockedActivityUpdatesRequireTransients |= includeTransients;
return;
}
emit activitiesChanged(this);
m_blockedActivityUpdatesRequireTransients = false; // reset
FocusChain::self()->update(this, FocusChain::MakeFirst);
updateVisibility();
updateWindowRules(Rules::Activity);
// Update states of all other windows in this group
if (tabGroup())
tabGroup()->updateStates(this, TabGroup::Activity);
}
/**
* Returns the virtual desktop within the workspace() the client window
* is located in, 0 if it isn't located on any special desktop (not mapped yet),
* or NET::OnAllDesktops. Do not use desktop() directly, use
* isOnDesktop() instead.
*/
int Client::desktop() const
{
if (needsSessionInteract) {
return NET::OnAllDesktops;
}
return AbstractClient::desktop();
}
/**
* Returns the list of activities the client window is on.
* if it's on all activities, the list will be empty.
* Don't use this, use isOnActivity() and friends (from class Toplevel)
*/
QStringList Client::activities() const
{
if (needsSessionInteract) {
return QStringList();
}
return activityList;
}
/**
* if @p on is true, sets on all activities.
* if it's false, sets it to only be on the current activity
*/
void Client::setOnAllActivities(bool on)
{
#ifdef KWIN_BUILD_ACTIVITIES
if (on == isOnAllActivities())
return;
if (on) {
setOnActivities(QStringList());
} else {
setOnActivity(Activities::self()->current(), true);
}
#else
Q_UNUSED(on)
#endif
}
/**
* Performs the actual focusing of the window using XSetInputFocus and WM_TAKE_FOCUS
*/
void Client::takeFocus()
{
if (rules()->checkAcceptFocus(info->input()))
m_client.focus();
else
demandAttention(false); // window cannot take input, at least withdraw urgency
if (info->supportsProtocol(NET::TakeFocusProtocol)) {
sendClientMessage(window(), atoms->wm_protocols, atoms->wm_take_focus, 0, 0, 0, XCB_CURRENT_TIME);
}
workspace()->setShouldGetFocus(this);
bool breakShowingDesktop = !keepAbove();
if (breakShowingDesktop) {
foreach (const Client *c, group()->members()) {
if (c->isDesktop()) {
breakShowingDesktop = false;
break;
}
}
}
if (breakShowingDesktop)
workspace()->setShowingDesktop(false);
}
/**
* Returns whether the window provides context help or not. If it does,
* you should show a help menu item or a help button like '?' and call
* contextHelp() if this is invoked.
*
* \sa contextHelp()
*/
bool Client::providesContextHelp() const
{
return info->supportsProtocol(NET::ContextHelpProtocol);
}
/**
* Invokes context help on the window. Only works if the window
* actually provides context help.
*
* \sa providesContextHelp()
*/
void Client::showContextHelp()
{
if (info->supportsProtocol(NET::ContextHelpProtocol)) {
sendClientMessage(window(), atoms->wm_protocols, atoms->net_wm_context_help);
QWhatsThis::enterWhatsThisMode(); // SELI TODO: ?
}
}
/**
* Fetches the window's caption (WM_NAME property). It will be
* stored in the client's caption().
*/
void Client::fetchName()
{
setCaption(readName());
}
QString Client::readName() const
{
if (info->name() && info->name()[0] != '\0')
return QString::fromUtf8(info->name());
else
return KWindowSystem::readNameProperty(window(), XCB_ATOM_WM_NAME);
}
// The list is taken from http://www.unicode.org/reports/tr9/ (#154840)
static const QChar LRM(0x200E);
static const QChar RLM(0x200F);
static const QChar LRE(0x202A);
static const QChar RLE(0x202B);
static const QChar LRO(0x202D);
static const QChar RLO(0x202E);
static const QChar PDF(0x202C);
void Client::setCaption(const QString& _s, bool force)
{
if (!force && _s == cap_normal)
return;
QString s(_s);
for (int i = 0; i < s.length(); ++i)
if (!s[i].isPrint())
s[i] = QChar(u' ');
cap_normal = s;
if (options->condensedTitle()) {
static QScriptEngine engine;
static QScriptProgram stripTitle;
static QScriptValue script;
if (stripTitle.isNull()) {
const QString scriptFile = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QStringLiteral(KWIN_NAME "/stripTitle.js"));
if (!scriptFile.isEmpty()) {
QFile f(scriptFile);
if (f.open(QIODevice::ReadOnly|QIODevice::Text)) {
f.reset();
stripTitle = QScriptProgram(QString::fromLocal8Bit(f.readAll()), QStringLiteral("stripTitle.js"));
f.close();
}
}
if (stripTitle.isNull())
stripTitle = QScriptProgram(QStringLiteral("(function(title, wm_name, wm_class){ return title ; })"), QStringLiteral("stripTitle.js"));
script = engine.evaluate(stripTitle);
}
QScriptValueList args;
args << _s << QString::fromUtf8(resourceName()) << QString::fromUtf8(resourceClass());
s = script.call(QScriptValue(), args).toString();
}
if (!force && s == cap_deco)
return;
cap_deco = s;
bool reset_name = force;
bool was_suffix = (!cap_suffix.isEmpty());
cap_suffix.clear();
QString machine_suffix;
if (!options->condensedTitle()) { // machine doesn't qualify for "clean"
if (clientMachine()->hostName() != ClientMachine::localhost() && !clientMachine()->isLocal())
machine_suffix = QLatin1String(" <@") + QString::fromUtf8(clientMachine()->hostName()) + QLatin1Char('>') + LRM;
}
QString shortcut_suffix = !shortcut().isEmpty() ? (QLatin1String(" {") + shortcut().toString() + QLatin1Char('}')) : QString();
cap_suffix = machine_suffix + shortcut_suffix;
auto fetchNameInternalPredicate = [this](const Client *cl) {
return (!cl->isSpecialWindow() || cl->isToolbar()) &&
cl != this && cl->caption() == caption();
};
if ((!isSpecialWindow() || isToolbar()) && workspace()->findClient(fetchNameInternalPredicate)) {
int i = 2;
do {
cap_suffix = machine_suffix + QLatin1String(" <") + QString::number(i) + QLatin1Char('>') + LRM;
i++;
} while (workspace()->findClient(fetchNameInternalPredicate));
info->setVisibleName(caption().toUtf8().constData());
reset_name = false;
}
if ((was_suffix && cap_suffix.isEmpty()) || reset_name) {
// If it was new window, it may have old value still set, if the window is reused
info->setVisibleName("");
info->setVisibleIconName("");
} else if (!cap_suffix.isEmpty() && !cap_iconic.isEmpty())
// Keep the same suffix in iconic name if it's set
info->setVisibleIconName(QString(cap_iconic + cap_suffix).toUtf8().constData());
emit captionChanged();
}
void Client::updateCaption()
{
setCaption(cap_normal, true);
}
void Client::evaluateWindowRules()
{
setupWindowRules(true);
applyWindowRules();
}
void Client::fetchIconicName()
{
QString s;
if (info->iconName() && info->iconName()[0] != '\0')
s = QString::fromUtf8(info->iconName());
else
s = KWindowSystem::readNameProperty(window(), XCB_ATOM_WM_ICON_NAME);
if (s != cap_iconic) {
bool was_set = !cap_iconic.isEmpty();
cap_iconic = s;
if (!cap_suffix.isEmpty()) {
if (!cap_iconic.isEmpty()) // Keep the same suffix in iconic name if it's set
info->setVisibleIconName(QString(s + cap_suffix).toUtf8().constData());
else if (was_set)
info->setVisibleIconName("");
}
}
}
/**
* \reimp
*/
QString Client::caption(bool full, bool stripped) const
{
QString cap = stripped ? cap_deco : cap_normal;
if (full)
cap += cap_suffix;
return cap;
}
bool Client::tabTo(Client *other, bool behind, bool activate)
{
Q_ASSERT(other && other != this);
if (tab_group && tab_group == other->tabGroup()) { // special case: move inside group
tab_group->move(this, other, behind);
return true;
}
GeometryUpdatesBlocker blocker(this);
const bool wasBlocking = signalsBlocked();
blockSignals(true); // prevent client emitting "retabbed to nowhere" cause it's about to be entabbed the next moment
untab();
blockSignals(wasBlocking);
TabGroup *newGroup = other->tabGroup() ? other->tabGroup() : new TabGroup(other);
if (!newGroup->add(this, other, behind, activate)) {
if (newGroup->count() < 2) { // adding "c" to "to" failed for whatever reason
newGroup->remove(other);
delete newGroup;
}
return false;
}
return true;
}
bool Client::untab(const QRect &toGeometry, bool clientRemoved)
{
TabGroup *group = tab_group;
if (group && group->remove(this)) { // remove sets the tabgroup to "0", therefore the pointer is cached
if (group->isEmpty()) {
delete group;
}
if (clientRemoved)
return true; // there's been a broadcast signal that this client is now removed - don't touch it
setClientShown(!(isMinimized() || isShade()));
bool keepSize = toGeometry.size() == size();
bool changedSize = false;
if (quickTileMode() != QuickTileNone) {
changedSize = true;
setQuickTileMode(QuickTileNone); // if we leave a quicktiled group, assume that the user wants to untile
}
if (toGeometry.isValid()) {
if (maximizeMode() != MaximizeRestore) {
changedSize = true;
maximize(MaximizeRestore); // explicitly calling for a geometry -> unmaximize
}
if (keepSize && changedSize) {
geom_restore = geometry(); // checkWorkspacePosition() invokes it
QPoint cpoint = Cursor::pos();
QPoint point = cpoint;
point.setX((point.x() - toGeometry.x()) * geom_restore.width() / toGeometry.width());
point.setY((point.y() - toGeometry.y()) * geom_restore.height() / toGeometry.height());
geom_restore.moveTo(cpoint-point);
} else {
geom_restore = toGeometry; // checkWorkspacePosition() invokes it
}
setGeometry(geom_restore);
checkWorkspacePosition();
}
return true;
}
return false;
}
void Client::setTabGroup(TabGroup *group)
{
tab_group = group;
if (group) {
unsigned long data[] = {qHash(group)}; //->id();
m_client.changeProperty(atoms->kde_net_wm_tab_group, XCB_ATOM_CARDINAL, 32, 1, data);
}
else
m_client.deleteProperty(atoms->kde_net_wm_tab_group);
emit tabGroupChanged();
}
bool Client::isCurrentTab() const
{
return !tab_group || tab_group->current() == this;
}
void Client::syncTabGroupFor(QString property, bool fromThisClient)
{
if (tab_group)
tab_group->sync(property.toAscii().data(), fromThisClient ? this : tab_group->current());
}
void Client::setClientShown(bool shown)
{
if (deleting)
return; // Don't change shown status if this client is being deleted
if (shown != hidden)
return; // nothing to change
hidden = !shown;
if (options->isInactiveTabsSkipTaskbar())
setSkipTaskbar(hidden); // TODO: Causes reshuffle of the taskbar
if (shown) {
map();
takeFocus();
autoRaise();
FocusChain::self()->update(this, FocusChain::MakeFirst);
} else {
unmap();
// Don't move tabs to the end of the list when another tab get's activated
if (isCurrentTab())
FocusChain::self()->update(this, FocusChain::MakeLast);
addWorkspaceRepaint(visibleRect());
}
}
void Client::getMotifHints()
{
const bool wasClosable = m_motif.close();
const bool wasNoBorder = m_motif.noBorder();
if (m_managed) // only on property change, initial read is prefetched
m_motif.fetch();
m_motif.read();
if (m_motif.hasDecoration() && m_motif.noBorder() != wasNoBorder) {
// If we just got a hint telling us to hide decorations, we do so.
if (m_motif.noBorder())
noborder = rules()->checkNoBorder(true);
// If the Motif hint is now telling us to show decorations, we only do so if the app didn't
// instruct us to hide decorations in some other way, though.
else if (!app_noborder)
noborder = rules()->checkNoBorder(false);
}
// mminimize; - Ignore, bogus - E.g. shading or sending to another desktop is "minimizing" too
// mmaximize; - Ignore, bogus - Maximizing is basically just resizing
const bool closabilityChanged = wasClosable != m_motif.close();
if (isManaged())
updateDecoration(true); // Check if noborder state has changed
if (closabilityChanged) {
emit closeableChanged(isCloseable());
}
}
void Client::getIcons()
{
// First read icons from the window itself
QIcon icon;
auto readIcon = [this, &icon](int size, bool scale = true) {
const QPixmap pix = KWindowSystem::icon(window(), size, size, scale, KWindowSystem::NETWM | KWindowSystem::WMHints, info);
if (!pix.isNull()) {
icon.addPixmap(pix);
}
};
readIcon(16);
readIcon(32);
readIcon(48, false);
readIcon(64, false);
readIcon(128, false);
if (icon.isNull()) {
// Then try window group
icon = group()->icon();
}
if (icon.isNull() && isTransient()) {
// Then mainclients
auto mainclients = mainClients();
for (auto it = mainclients.constBegin();
it != mainclients.constEnd() && icon.isNull();
++it) {
if (!(*it)->icon().isNull()) {
icon = (*it)->icon();
break;
}
}
}
if (icon.isNull()) {
// And if nothing else, load icon from classhint or xapp icon
icon.addPixmap(KWindowSystem::icon(window(), 32, 32, true, KWindowSystem::ClassHint | KWindowSystem::XApp, info));
icon.addPixmap(KWindowSystem::icon(window(), 16, 16, true, KWindowSystem::ClassHint | KWindowSystem::XApp, info));
icon.addPixmap(KWindowSystem::icon(window(), 64, 64, false, KWindowSystem::ClassHint | KWindowSystem::XApp, info));
icon.addPixmap(KWindowSystem::icon(window(), 128, 128, false, KWindowSystem::ClassHint | KWindowSystem::XApp, info));
}
setIcon(icon);
}
void Client::getSyncCounter()
{
if (!Xcb::Extensions::self()->isSyncAvailable())
return;
Xcb::Property syncProp(false, window(), atoms->net_wm_sync_request_counter, XCB_ATOM_CARDINAL, 0, 1);
const xcb_sync_counter_t counter = syncProp.value<xcb_sync_counter_t>(XCB_NONE);
if (counter != XCB_NONE) {
syncRequest.counter = counter;
syncRequest.value.hi = 0;
syncRequest.value.lo = 0;
auto *c = connection();
xcb_sync_set_counter(c, syncRequest.counter, syncRequest.value);
if (syncRequest.alarm == XCB_NONE) {
const uint32_t mask = XCB_SYNC_CA_COUNTER | XCB_SYNC_CA_VALUE_TYPE | XCB_SYNC_CA_TEST_TYPE | XCB_SYNC_CA_EVENTS;
const uint32_t values[] = {
syncRequest.counter,
XCB_SYNC_VALUETYPE_RELATIVE,
XCB_SYNC_TESTTYPE_POSITIVE_TRANSITION,
1
};
syncRequest.alarm = xcb_generate_id(c);
auto cookie = xcb_sync_create_alarm_checked(c, syncRequest.alarm, mask, values);
ScopedCPointer<xcb_generic_error_t> error(xcb_request_check(c, cookie));
if (!error.isNull()) {
syncRequest.alarm = XCB_NONE;
} else {
xcb_sync_change_alarm_value_list_t value;
memset(&value, 0, sizeof(value));
value.value.hi = 0;
value.value.lo = 1;
value.delta.hi = 0;
value.delta.lo = 1;
xcb_sync_change_alarm_aux(c, syncRequest.alarm, XCB_SYNC_CA_DELTA | XCB_SYNC_CA_VALUE, &value);
}
}
}
}
/**
* Send the client a _NET_SYNC_REQUEST
*/
void Client::sendSyncRequest()
{
if (syncRequest.counter == XCB_NONE || syncRequest.isPending)
return; // do NOT, NEVER send a sync request when there's one on the stack. the clients will just stop respoding. FOREVER! ...
if (!syncRequest.failsafeTimeout) {
syncRequest.failsafeTimeout = new QTimer(this);
connect(syncRequest.failsafeTimeout, &QTimer::timeout, this,
[this]() {
// client does not respond to XSYNC requests in reasonable time, remove support
if (!ready_for_painting) {
// failed on initial pre-show request
setReadyForPainting();
setupWindowManagementInterface();
return;
}
// failed during resize
syncRequest.isPending = false;
syncRequest.counter = syncRequest.alarm = XCB_NONE;
delete syncRequest.timeout; delete syncRequest.failsafeTimeout;
syncRequest.timeout = syncRequest.failsafeTimeout = nullptr;
syncRequest.lastTimestamp = XCB_CURRENT_TIME;
}
);
syncRequest.failsafeTimeout->setSingleShot(true);
}
// if there's no response within 10 seconds, sth. went wrong and we remove XSYNC support from this client.
// see events.cpp Client::syncEvent()
syncRequest.failsafeTimeout->start(ready_for_painting ? 10000 : 1000);
// We increment before the notify so that after the notify
// syncCounterSerial will equal the value we are expecting
// in the acknowledgement
const uint32_t oldLo = syncRequest.value.lo;
syncRequest.value.lo++;;
if (oldLo > syncRequest.value.lo) {
syncRequest.value.hi++;
}
if (syncRequest.lastTimestamp >= xTime()) {
updateXTime();
}
// Send the message to client
sendClientMessage(window(), atoms->wm_protocols, atoms->net_wm_sync_request, syncRequest.value.lo, syncRequest.value.hi);
syncRequest.isPending = true;
syncRequest.lastTimestamp = xTime();
}
bool Client::wantsInput() const
{
return rules()->checkAcceptFocus(acceptsFocus() || info->supportsProtocol(NET::TakeFocusProtocol));
}
bool Client::acceptsFocus() const
{
return info->input();
}
void Client::setBlockingCompositing(bool block)
{
const bool usedToBlock = blocks_compositing;
blocks_compositing = rules()->checkBlockCompositing(block);
if (usedToBlock != blocks_compositing) {
emit blockingCompositingChanged(blocks_compositing ? this : 0);
}
}
void Client::updateAllowedActions(bool force)
{
if (!isManaged() && !force)
return;
NET::Actions old_allowed_actions = NET::Actions(allowed_actions);
allowed_actions = 0;
if (isMovable())
allowed_actions |= NET::ActionMove;
if (isResizable())
allowed_actions |= NET::ActionResize;
if (isMinimizable())
allowed_actions |= NET::ActionMinimize;
if (isShadeable())
allowed_actions |= NET::ActionShade;
// Sticky state not supported
if (isMaximizable())
allowed_actions |= NET::ActionMax;
if (userCanSetFullScreen())
allowed_actions |= NET::ActionFullScreen;
allowed_actions |= NET::ActionChangeDesktop; // Always (Pagers shouldn't show Docks etc.)
if (isCloseable())
allowed_actions |= NET::ActionClose;
if (old_allowed_actions == allowed_actions)
return;
// TODO: This could be delayed and compressed - It's only for pagers etc. anyway
info->setAllowedActions(allowed_actions);
// ONLY if relevant features have changed (and the window didn't just get/loose moveresize for maximization state changes)
const NET::Actions relevant = ~(NET::ActionMove|NET::ActionResize);
if ((allowed_actions & relevant) != (old_allowed_actions & relevant)) {
if ((allowed_actions & NET::ActionMinimize) != (old_allowed_actions & NET::ActionMinimize)) {
emit minimizeableChanged(allowed_actions & NET::ActionMinimize);
}
if ((allowed_actions & NET::ActionShade) != (old_allowed_actions & NET::ActionShade)) {
emit shadeableChanged(allowed_actions & NET::ActionShade);
}
if ((allowed_actions & NET::ActionMax) != (old_allowed_actions & NET::ActionMax)) {
emit maximizeableChanged(allowed_actions & NET::ActionMax);
}
}
}
void Client::debug(QDebug& stream) const
{
print<QDebug>(stream);
}
Xcb::StringProperty Client::fetchActivities() const
{
#ifdef KWIN_BUILD_ACTIVITIES
return Xcb::StringProperty(window(), atoms->activities);
#else
return Xcb::StringProperty();
#endif
}
void Client::readActivities(Xcb::StringProperty &property)
{
#ifdef KWIN_BUILD_ACTIVITIES
QStringList newActivitiesList;
QString prop = QString::fromUtf8(property);
activitiesDefined = !prop.isEmpty();
if (prop == Activities::nullUuid()) {
//copied from setOnAllActivities to avoid a redundant XChangeProperty.
if (!activityList.isEmpty()) {
activityList.clear();
updateActivities(true);
}
return;
}
if (prop.isEmpty()) {
//note: this makes it *act* like it's on all activities but doesn't set the property to 'ALL'
if (!activityList.isEmpty()) {
activityList.clear();
updateActivities(true);
}
return;
}
newActivitiesList = prop.split(u',');
if (newActivitiesList == activityList)
return; //expected change, it's ok.
//otherwise, somebody else changed it. we need to validate before reacting.
//if the activities are not synced, and there are existing clients with
//activities specified, somebody has restarted kwin. we can not validate
//activities in this case. we need to trust the old values.
if (Activities::self() && Activities::self()->serviceStatus() != KActivities::Consumer::Unknown) {
QStringList allActivities = Activities::self()->all();
if (allActivities.isEmpty()) {
qCDebug(KWIN_CORE) << "no activities!?!?";
//don't touch anything, there's probably something bad going on and we don't wanna make it worse
return;
}
for (int i = 0; i < newActivitiesList.size(); ++i) {
if (! allActivities.contains(newActivitiesList.at(i))) {
qCDebug(KWIN_CORE) << "invalid:" << newActivitiesList.at(i);
newActivitiesList.removeAt(i--);
}
}
}
setOnActivities(newActivitiesList);
#else
Q_UNUSED(property)
#endif
}
void Client::checkActivities()
{
#ifdef KWIN_BUILD_ACTIVITIES
Xcb::StringProperty property = fetchActivities();
readActivities(property);
#endif
}
void Client::setSessionInteract(bool needed)
{
needsSessionInteract = needed;
}
QRect Client::decorationRect() const
{
return QRect(0, 0, width(), height());
}
Xcb::Property Client::fetchFirstInTabBox() const
{
return Xcb::Property(false, m_client, atoms->kde_first_in_window_list,
atoms->kde_first_in_window_list, 0, 1);
}
void Client::readFirstInTabBox(Xcb::Property &property)
{
setFirstInTabBox(property.toBool(32, atoms->kde_first_in_window_list));
}
void Client::updateFirstInTabBox()
{
// TODO: move into KWindowInfo
Xcb::Property property = fetchFirstInTabBox();
readFirstInTabBox(property);
}
Xcb::StringProperty Client::fetchColorScheme() const
{
return Xcb::StringProperty(m_client, atoms->kde_color_sheme);
}
void Client::readColorScheme(Xcb::StringProperty &property)
{
AbstractClient::updateColorScheme(rules()->checkDecoColor(QString::fromUtf8(property)));
}
void Client::updateColorScheme()
{
Xcb::StringProperty property = fetchColorScheme();
readColorScheme(property);
}
bool Client::isClient() const
{
return true;
}
NET::WindowType Client::windowType(bool direct, int supportedTypes) const
{
// TODO: does it make sense to cache the returned window type for SUPPORTED_MANAGED_WINDOW_TYPES_MASK?
if (supportedTypes == 0) {
supportedTypes = SUPPORTED_MANAGED_WINDOW_TYPES_MASK;
}
NET::WindowType wt = info->windowType(NET::WindowTypes(supportedTypes));
if (direct) {
return wt;
}
NET::WindowType wt2 = client_rules.checkType(wt);
if (wt != wt2) {
wt = wt2;
info->setWindowType(wt); // force hint change
}
// hacks here
if (wt == NET::Unknown) // this is more or less suggested in NETWM spec
wt = isTransient() ? NET::Dialog : NET::Normal;
return wt;
}
void Client::cancelFocusOutTimer()
{
if (m_focusOutTimer) {
m_focusOutTimer->stop();
}
}
xcb_window_t Client::frameId() const
{
return m_frame;
}
Xcb::Property Client::fetchShowOnScreenEdge() const
{
return Xcb::Property(false, window(), atoms->kde_screen_edge_show, XCB_ATOM_CARDINAL, 0, 1);
}
void Client::readShowOnScreenEdge(Xcb::Property &property)
{
//value comes in two parts, edge in the lower byte
//then the type in the upper byte
// 0 = autohide
// 1 = raise in front on activate
const uint32_t value = property.value<uint32_t>(ElectricNone);
ElectricBorder border = ElectricNone;
switch (value & 0xFF) {
case 0:
border = ElectricTop;
break;
case 1:
border = ElectricRight;
break;
case 2:
border = ElectricBottom;
break;
case 3:
border = ElectricLeft;
break;
}
if (border != ElectricNone) {
disconnect(m_edgeRemoveConnection);
bool successfullyHidden = false;
if (((value >> 8) & 0xFF) == 1) {
setKeepBelow(true);
successfullyHidden = keepBelow(); //request could have failed due to user kwin rules
m_edgeRemoveConnection = connect(this, &AbstractClient::keepBelowChanged, this, [this](){
if (!keepBelow()) {
ScreenEdges::self()->reserve(this, ElectricNone);
}
});
} else {
hideClient(true);
successfullyHidden = isHiddenInternal();
m_edgeRemoveConnection = connect(this, &Client::geometryChanged, this, [this](){
ScreenEdges::self()->reserve(this, ElectricNone);
});
}
if (successfullyHidden) {
ScreenEdges::self()->reserve(this, border);
} else {
ScreenEdges::self()->reserve(this, ElectricNone);
}
} else if (!property.isNull() && property->type != XCB_ATOM_NONE) {
// property value is incorrect, delete the property
// so that the client knows that it is not hidden
xcb_delete_property(connection(), window(), atoms->kde_screen_edge_show);
} else {
// restore
// TODO: add proper unreserve
//this will call showOnScreenEdge to reset the state
ScreenEdges::self()->reserve(this, ElectricNone);
}
}
void Client::updateShowOnScreenEdge()
{
Xcb::Property property = fetchShowOnScreenEdge();
readShowOnScreenEdge(property);
}
void Client::showOnScreenEdge()
{
disconnect(m_edgeRemoveConnection);
hideClient(false);
setKeepBelow(false);
xcb_delete_property(connection(), window(), atoms->kde_screen_edge_show);
}
void Client::addDamage(const QRegion &damage)
{
if (!ready_for_painting) { // avoid "setReadyForPainting()" function calling overhead
if (syncRequest.counter == XCB_NONE) { // cannot detect complete redraw, consider done now
setReadyForPainting();
setupWindowManagementInterface();
}
}
repaints_region += damage;
Toplevel::addDamage(damage);
}
bool Client::belongsToSameApplication(const AbstractClient *other, bool active_hack) const
{
const Client *c2 = dynamic_cast<const Client*>(other);
if (!c2) {
return false;
}
return Client::belongToSameApplication(this, c2, active_hack);
}
void Client::updateTabGroupStates(TabGroup::States states)
{
if (auto t = tabGroup()) {
t->updateStates(this, states);
}
}
QSize Client::resizeIncrements() const
{
return m_geometryHints.resizeIncrements();
}
} // namespace