src/plugins/platforms/xcb/qxcbwindow.cpp

   1 /****************************************************************************
   2 **
   3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
   4 ** Contact: http://www.qt-project.org/
   5 **
   6 ** This file is part of the plugins of the Qt Toolkit.
   7 **
   8 ** $QT_BEGIN_LICENSE:LGPL$
   9 ** GNU Lesser General Public License Usage
  10 ** This file may be used under the terms of the GNU Lesser General Public
  11 ** License version 2.1 as published by the Free Software Foundation and
  12 ** appearing in the file LICENSE.LGPL included in the packaging of this
  13 ** file. Please review the following information to ensure the GNU Lesser
  14 ** General Public License version 2.1 requirements will be met:
  15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
  16 **
  17 ** In addition, as a special exception, Nokia gives you certain additional
  18 ** rights. These rights are described in the Nokia Qt LGPL Exception
  19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
  20 **
  21 ** GNU General Public License Usage
  22 ** Alternatively, this file may be used under the terms of the GNU General
  23 ** Public License version 3.0 as published by the Free Software Foundation
  24 ** and appearing in the file LICENSE.GPL included in the packaging of this
  25 ** file. Please review the following information to ensure the GNU General
  26 ** Public License version 3.0 requirements will be met:
  27 ** http://www.gnu.org/copyleft/gpl.html.
  28 **
  29 ** Other Usage
  30 ** Alternatively, this file may be used in accordance with the terms and
  31 ** conditions contained in a signed written agreement between you and Nokia.
  32 **
  33 **
  34 **
  35 **
  36 **
  37 **
  38 ** $QT_END_LICENSE$
  39 **
  40 ****************************************************************************/
  41
  42 #include "qxcbwindow.h"
  43
  44 #include <QtDebug>
  45 #include <QScreen>
  46
  47 #include "qxcbconnection.h"
  48 #include "qxcbscreen.h"
  49 #include "qxcbdrag.h"
  50 #include "qxcbkeyboard.h"
  51 #include "qxcbwmsupport.h"
  52
  53 #include <qplatformintegration_qpa.h>
  54
  55 #ifdef XCB_USE_DRI2
  56 #include "qdri2context.h"
  57 #endif
  58
  59 // FIXME This workaround can be removed for xcb-icccm > 3.8
  60 #define class class_name
  61 #include <xcb/xcb_icccm.h>
  62 #undef class
  63 #include <xcb/xfixes.h>
  64
  65 // xcb-icccm 3.8 support
  66 #ifdef XCB_ICCCM_NUM_WM_SIZE_HINTS_ELEMENTS
  67 #define xcb_get_wm_hints_reply xcb_icccm_get_wm_hints_reply
  68 #define xcb_get_wm_hints xcb_icccm_get_wm_hints
  69 #define xcb_get_wm_hints_unchecked xcb_icccm_get_wm_hints_unchecked
  70 #define xcb_set_wm_hints xcb_icccm_set_wm_hints
  71 #define xcb_set_wm_normal_hints xcb_icccm_set_wm_normal_hints
  72 #define xcb_size_hints_set_base_size xcb_icccm_size_hints_set_base_size
  73 #define xcb_size_hints_set_max_size xcb_icccm_size_hints_set_max_size
  74 #define xcb_size_hints_set_min_size xcb_icccm_size_hints_set_min_size
  75 #define xcb_size_hints_set_position xcb_icccm_size_hints_set_position
  76 #define xcb_size_hints_set_resize_inc xcb_icccm_size_hints_set_resize_inc
  77 #define xcb_size_hints_set_size xcb_icccm_size_hints_set_size
  78 #define xcb_size_hints_set_win_gravity xcb_icccm_size_hints_set_win_gravity
  79 #define xcb_wm_hints_set_iconic xcb_icccm_wm_hints_set_iconic
  80 #define xcb_wm_hints_set_normal xcb_icccm_wm_hints_set_normal
  81 #define xcb_wm_hints_set_input xcb_icccm_wm_hints_set_input
  82 #define xcb_wm_hints_t xcb_icccm_wm_hints_t
  83 #define XCB_WM_STATE_ICONIC XCB_ICCCM_WM_STATE_ICONIC
  84 #define XCB_WM_STATE_WITHDRAWN XCB_ICCCM_WM_STATE_WITHDRAWN
  85 #endif
  86
  87 #include <private/qguiapplication_p.h>
  88 #include <private/qwindow_p.h>
  89
  90 #include <QtGui/QPlatformBackingStore>
  91 #include <QtGui/QWindowSystemInterface>
  92
  93 #include <stdio.h>
  94
  95 #ifdef XCB_USE_XLIB
  96 #include <X11/Xlib.h>
  97 #include <X11/Xutil.h>
  98 #endif
  99
 100 #ifdef XCB_USE_XINPUT2_MAEMO
 101 #include <X11/extensions/XInput2.h>
 102 #endif
 103
 104 #if defined(XCB_USE_GLX)
 105 #include "qglxintegration.h"
 106 #include <QtPlatformSupport/private/qglxconvenience_p.h>
 107 #elif defined(XCB_USE_EGL)
 108 #include "qxcbeglsurface.h"
 109 #include <QtPlatformSupport/private/qeglconvenience_p.h>
 110 #include <QtPlatformSupport/private/qxlibeglintegration_p.h>
 111 #endif
 112
 113 #define XCOORD_MAX 16383
 114
 115 //#ifdef NET_WM_STATE_DEBUG
 116
 117 QT_BEGIN_NAMESPACE
 118
 119 // Returns true if we should set WM_TRANSIENT_FOR on \a w
 120 static inline bool isTransient(const QWindow *w)
 121 {
 122     return w->windowType() == Qt::Dialog
 123            || w->windowType() == Qt::Sheet
 124            || w->windowType() == Qt::Tool
 125            || w->windowType() == Qt::SplashScreen
 126            || w->windowType() == Qt::ToolTip
 127            || w->windowType() == Qt::Drawer
 128            || w->windowType() == Qt::Popup;
 129 }
 130
 131 static inline QImage::Format imageFormatForDepth(int depth)
 132 {
 133     switch (depth) {
 134         case 32: return QImage::Format_ARGB32_Premultiplied;
 135         case 24: return QImage::Format_RGB32;
 136         case 16: return QImage::Format_RGB16;
 137         default: return QImage::Format_Invalid;
 138     }
 139 }
 140
 141 QXcbWindow::QXcbWindow(QWindow *window)
 142     : QPlatformWindow(window)
 143     , m_window(0)
 144     , m_syncCounter(0)
 145     , m_mapped(false)
 146     , m_transparent(false)
 147     , m_deferredActivation(false)
 148     , m_netWmUserTimeWindow(XCB_NONE)
 149 #if defined(XCB_USE_EGL)
 150     , m_eglSurface(0)
 151 #endif
 152     , m_lastWindowStateEvent(-1)
 153 {
 154     m_screen = static_cast<QXcbScreen *>(window->screen()->handle());
 155
 156     setConnection(m_screen->connection());
 157
 158     create();
 159 }
 160
 161 void QXcbWindow::create()
 162 {
 163     destroy();
 164
 165     m_deferredExpose = false;
 166     m_configureNotifyPending = true;
 167     m_windowState = Qt::WindowNoState;
 168
 169     Qt::WindowType type = window()->windowType();
 170
 171     if (type == Qt::Desktop) {
 172         m_window = m_screen->root();
 173         m_depth = m_screen->screen()->root_depth;
 174         m_imageFormat = imageFormatForDepth(m_depth);
 175         connection()->addWindow(m_window, this);
 176         return;
 177     }
 178
 179     const quint32 mask = XCB_CW_BACK_PIXMAP | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_SAVE_UNDER | XCB_CW_EVENT_MASK;
 180     const quint32 values[] = {
 181         // XCB_CW_BACK_PIXMAP
 182         XCB_NONE,
 183         // XCB_CW_OVERRIDE_REDIRECT
 184         type == Qt::Popup || type == Qt::ToolTip,
 185         // XCB_CW_SAVE_UNDER
 186         type == Qt::Popup || type == Qt::Tool || type == Qt::SplashScreen || type == Qt::ToolTip || type == Qt::Drawer,
 187         // XCB_CW_EVENT_MASK
 188         XCB_EVENT_MASK_EXPOSURE
 189         | XCB_EVENT_MASK_STRUCTURE_NOTIFY
 190         | XCB_EVENT_MASK_KEY_PRESS
 191         | XCB_EVENT_MASK_KEY_RELEASE
 192         | XCB_EVENT_MASK_BUTTON_PRESS
 193         | XCB_EVENT_MASK_BUTTON_RELEASE
 194         | XCB_EVENT_MASK_BUTTON_MOTION
 195         | XCB_EVENT_MASK_ENTER_WINDOW
 196         | XCB_EVENT_MASK_LEAVE_WINDOW
 197         | XCB_EVENT_MASK_POINTER_MOTION
 198         | XCB_EVENT_MASK_PROPERTY_CHANGE
 199         | XCB_EVENT_MASK_FOCUS_CHANGE
 200     };
 201
 202     QRect rect = window()->geometry();
 203     QPlatformWindow::setGeometry(rect);
 204
 205     rect.setWidth(qBound(1, rect.width(), XCOORD_MAX));
 206     rect.setHeight(qBound(1, rect.height(), XCOORD_MAX));
 207
 208     xcb_window_t xcb_parent_id = m_screen->root();
 209     if (parent())
 210         xcb_parent_id = static_cast<QXcbWindow *>(parent())->xcb_window();
 211
 212     m_format = window()->requestedFormat();
 213
 214 #if (defined(XCB_USE_GLX) || defined(XCB_USE_EGL)) && defined(XCB_USE_XLIB)
 215     if (QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::OpenGL)
 216         || m_format.hasAlpha())
 217     {
 218 #if defined(XCB_USE_GLX)
 219         XVisualInfo *visualInfo = qglx_findVisualInfo(DISPLAY_FROM_XCB(m_screen), m_screen->screenNumber(), &m_format);
 220         if (!visualInfo)
 221             qFatal("Could not initialize GLX");
 222 #elif defined(XCB_USE_EGL)
 223         EGLDisplay eglDisplay = connection()->egl_display();
 224         EGLConfig eglConfig = q_configFromGLFormat(eglDisplay, m_format, true);
 225         m_format = q_glFormatFromConfig(eglDisplay, eglConfig);
 226
 227         VisualID id = QXlibEglIntegration::getCompatibleVisualId(DISPLAY_FROM_XCB(this), eglDisplay, eglConfig);
 228
 229         XVisualInfo visualInfoTemplate;
 230         memset(&visualInfoTemplate, 0, sizeof(XVisualInfo));
 231         visualInfoTemplate.visualid = id;
 232
 233         XVisualInfo *visualInfo;
 234         int matchingCount = 0;
 235         visualInfo = XGetVisualInfo(DISPLAY_FROM_XCB(this), VisualIDMask, &visualInfoTemplate, &matchingCount);
 236         if (!visualInfo)
 237             qFatal("Could not initialize EGL");
 238 #endif //XCB_USE_GLX
 239         m_depth = visualInfo->depth;
 240         m_imageFormat = imageFormatForDepth(m_depth);
 241         Colormap cmap = XCreateColormap(DISPLAY_FROM_XCB(this), xcb_parent_id, visualInfo->visual, AllocNone);
 242
 243         XSetWindowAttributes a;
 244         a.background_pixel = WhitePixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 245         a.border_pixel = BlackPixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 246         a.colormap = cmap;
 247
 248         m_visualId = visualInfo->visualid;
 249
 250         m_window = XCreateWindow(DISPLAY_FROM_XCB(this), xcb_parent_id, rect.x(), rect.y(), rect.width(), rect.height(),
 251                                   0, visualInfo->depth, InputOutput, visualInfo->visual,
 252                                   CWBackPixel|CWBorderPixel|CWColormap, &a);
 253
 254         XFree(visualInfo);
 255     } else
 256 #endif //defined(XCB_USE_GLX) || defined(XCB_USE_EGL)
 257     {
 258         m_window = xcb_generate_id(xcb_connection());
 259         m_depth = m_screen->screen()->root_depth;
 260         m_imageFormat = imageFormatForDepth(m_depth);
 261         m_visualId = m_screen->screen()->root_visual;
 262
 263         Q_XCB_CALL(xcb_create_window(xcb_connection(),
 264                                      XCB_COPY_FROM_PARENT,            // depth -- same as root
 265                                      m_window,                        // window id
 266                                      xcb_parent_id,                   // parent window id
 267                                      rect.x(),
 268                                      rect.y(),
 269                                      rect.width(),
 270                                      rect.height(),
 271                                      0,                               // border width
 272                                      XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
 273                                      m_visualId,                      // visual
 274                                      0,                               // value mask
 275                                      0));                             // value list
 276     }
 277
 278     connection()->addWindow(m_window, this);
 279
 280     Q_XCB_CALL(xcb_change_window_attributes(xcb_connection(), m_window, mask, values));
 281
 282     propagateSizeHints();
 283
 284     xcb_atom_t properties[4];
 285     int propertyCount = 0;
 286     properties[propertyCount++] = atom(QXcbAtom::WM_DELETE_WINDOW);
 287     properties[propertyCount++] = atom(QXcbAtom::WM_TAKE_FOCUS);
 288     properties[propertyCount++] = atom(QXcbAtom::_NET_WM_PING);
 289
 290     if (m_screen->syncRequestSupported())
 291         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_SYNC_REQUEST);
 292
 293     if (window()->windowFlags() & Qt::WindowContextHelpButtonHint)
 294         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_CONTEXT_HELP);
 295
 296     Q_XCB_CALL(xcb_change_property(xcb_connection(),
 297                                    XCB_PROP_MODE_REPLACE,
 298                                    m_window,
 299                                    atom(QXcbAtom::WM_PROTOCOLS),
 300                                    XCB_ATOM_ATOM,
 301                                    32,
 302                                    propertyCount,
 303                                    properties));
 304     m_syncValue.hi = 0;
 305     m_syncValue.lo = 0;
 306
 307     if (m_screen->syncRequestSupported()) {
 308         m_syncCounter = xcb_generate_id(xcb_connection());
 309         Q_XCB_CALL(xcb_sync_create_counter(xcb_connection(), m_syncCounter, m_syncValue));
 310
 311         Q_XCB_CALL(xcb_change_property(xcb_connection(),
 312                                        XCB_PROP_MODE_REPLACE,
 313                                        m_window,
 314                                        atom(QXcbAtom::_NET_WM_SYNC_REQUEST_COUNTER),
 315                                        XCB_ATOM_CARDINAL,
 316                                        32,
 317                                        1,
 318                                        &m_syncCounter));
 319     }
 320
 321     // set the PID to let the WM kill the application if unresponsive
 322     long pid = getpid();
 323     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 324                                    atom(QXcbAtom::_NET_WM_PID), XCB_ATOM_CARDINAL, 32,
 325                                    1, &pid));
 326
 327     xcb_wm_hints_t hints;
 328     memset(&hints, 0, sizeof(hints));
 329     xcb_wm_hints_set_normal(&hints);
 330
 331     xcb_wm_hints_set_input(&hints, !(window()->windowFlags() & Qt::WindowDoesNotAcceptFocus));
 332
 333     xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 334
 335     xcb_window_t leader = m_screen->clientLeader();
 336     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 337                                    atom(QXcbAtom::WM_CLIENT_LEADER), XCB_ATOM_WINDOW, 32,
 338                                    1, &leader));
 339
 340 #ifdef XCB_USE_XINPUT2_MAEMO
 341     if (connection()->isUsingXInput2()) {
 342         XIEventMask xieventmask;
 343         uchar bitmask[2] = { 0, 0 };
 344
 345         xieventmask.deviceid = XIAllMasterDevices;
 346         xieventmask.mask = bitmask;
 347         xieventmask.mask_len = sizeof(bitmask);
 348
 349         XISetMask(bitmask, XI_ButtonPress);
 350         XISetMask(bitmask, XI_ButtonRelease);
 351         XISetMask(bitmask, XI_Motion);
 352
 353         XISelectEvents(DISPLAY_FROM_XCB(this), m_window, &xieventmask, 1);
 354     }
 355 #endif
 356
 357     setWindowFlags(window()->windowFlags());
 358     setWindowTitle(window()->windowTitle());
 359     setWindowState(window()->windowState());
 360
 361     if (window()->windowFlags() & Qt::WindowTransparentForInput)
 362         setTransparentForMouseEvents(true);
 363
 364     connection()->drag()->dndEnable(this, true);
 365 }
 366
 367 QXcbWindow::~QXcbWindow()
 368 {
 369     destroy();
 370 }
 371
 372 void QXcbWindow::destroy()
 373 {
 374     if (m_syncCounter && m_screen->syncRequestSupported())
 375         Q_XCB_CALL(xcb_sync_destroy_counter(xcb_connection(), m_syncCounter));
 376     if (m_window) {
 377         if (m_netWmUserTimeWindow) {
 378             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
 379             // Some window managers, like metacity, do XSelectInput on the _NET_WM_USER_TIME_WINDOW window,
 380             // without trapping BadWindow (which crashes when the user time window is destroyed).
 381             connection()->sync();
 382             xcb_destroy_window(xcb_connection(), m_netWmUserTimeWindow);
 383             m_netWmUserTimeWindow = XCB_NONE;
 384         }
 385         connection()->removeWindow(m_window);
 386         Q_XCB_CALL(xcb_destroy_window(xcb_connection(), m_window));
 387     }
 388     m_mapped = false;
 389
 390 #if defined(XCB_USE_EGL)
 391     delete m_eglSurface;
 392     m_eglSurface = 0;
 393 #endif
 394 }
 395
 396 void QXcbWindow::setGeometry(const QRect &rect)
 397 {
 398     QPlatformWindow::setGeometry(rect);
 399
 400     propagateSizeHints();
 401
 402     const quint32 mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
 403     const qint32 values[] = {
 404         qBound<qint32>(-XCOORD_MAX, rect.x(),      XCOORD_MAX),
 405         qBound<qint32>(-XCOORD_MAX, rect.y(),      XCOORD_MAX),
 406         qBound<qint32>(1,           rect.width(),  XCOORD_MAX),
 407         qBound<qint32>(1,           rect.height(), XCOORD_MAX),
 408     };
 409
 410     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, reinterpret_cast<const quint32*>(values)));
 411
 412     xcb_flush(xcb_connection());
 413 }
 414
 415 QMargins QXcbWindow::frameMargins() const
 416 {
 417     if (m_dirtyFrameMargins) {
 418         xcb_window_t window = m_window;
 419         xcb_window_t parent = m_window;
 420
 421         bool foundRoot = false;
 422
 423         const QVector<xcb_window_t> &virtualRoots =
 424             connection()->wmSupport()->virtualRoots();
 425
 426         while (!foundRoot) {
 427             xcb_query_tree_cookie_t cookie = xcb_query_tree_unchecked(xcb_connection(), parent);
 428
 429             xcb_query_tree_reply_t *reply = xcb_query_tree_reply(xcb_connection(), cookie, NULL);
 430             if (reply) {
 431                 if (reply->root == reply->parent || virtualRoots.indexOf(reply->parent) != -1) {
 432                     foundRoot = true;
 433                 } else {
 434                     window = parent;
 435                     parent = reply->parent;
 436                 }
 437
 438                 free(reply);
 439             } else {
 440                 m_dirtyFrameMargins = false;
 441                 m_frameMargins = QMargins();
 442                 return m_frameMargins;
 443             }
 444         }
 445
 446         QPoint offset;
 447
 448         xcb_translate_coordinates_reply_t *reply =
 449             xcb_translate_coordinates_reply(
 450                 xcb_connection(),
 451                 xcb_translate_coordinates(xcb_connection(), window, parent, 0, 0),
 452                 NULL);
 453
 454         if (reply) {
 455             offset = QPoint(reply->dst_x, reply->dst_y);
 456             free(reply);
 457         }
 458
 459         xcb_get_geometry_reply_t *geom =
 460             xcb_get_geometry_reply(
 461                 xcb_connection(),
 462                 xcb_get_geometry(xcb_connection(), parent),
 463                 NULL);
 464
 465         if (geom) {
 466             // --
 467             // add the border_width for the window managers frame... some window managers
 468             // do not use a border_width of zero for their frames, and if we the left and
 469             // top strut, we ensure that pos() is absolutely correct.  frameGeometry()
 470             // will still be incorrect though... perhaps i should have foffset as well, to
 471             // indicate the frame offset (equal to the border_width on X).
 472             // - Brad
 473             // -- copied from qwidget_x11.cpp
 474
 475             int left = offset.x() + geom->border_width;
 476             int top = offset.y() + geom->border_width;
 477             int right = geom->width + geom->border_width - geometry().width() - offset.x();
 478             int bottom = geom->height + geom->border_width - geometry().height() - offset.y();
 479
 480             m_frameMargins = QMargins(left, top, right, bottom);
 481
 482             free(geom);
 483         }
 484
 485         m_dirtyFrameMargins = false;
 486     }
 487
 488     return m_frameMargins;
 489 }
 490
 491 void QXcbWindow::setVisible(bool visible)
 492 {
 493     if (visible)
 494         show();
 495     else
 496         hide();
 497 }
 498
 499 void QXcbWindow::show()
 500 {
 501     if (window()->isTopLevel()) {
 502         xcb_get_property_cookie_t cookie = xcb_get_wm_hints_unchecked(xcb_connection(), m_window);
 503
 504         xcb_wm_hints_t hints;
 505         xcb_get_wm_hints_reply(xcb_connection(), cookie, &hints, NULL);
 506
 507         if (window()->windowState() & Qt::WindowMinimized)
 508             xcb_wm_hints_set_iconic(&hints);
 509         else
 510             xcb_wm_hints_set_normal(&hints);
 511
 512         xcb_wm_hints_set_input(&hints, !(window()->windowFlags() & Qt::WindowDoesNotAcceptFocus));
 513
 514         xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 515
 516         // update WM_NORMAL_HINTS
 517         propagateSizeHints();
 518
 519         // update WM_TRANSIENT_FOR
 520         if (window()->transientParent() && isTransient(window())) {
 521             QXcbWindow *transientXcbParent = static_cast<QXcbWindow *>(window()->transientParent()->handle());
 522             if (transientXcbParent) {
 523                 // ICCCM 4.1.2.6
 524                 xcb_window_t parentWindow = transientXcbParent->xcb_window();
 525
 526                 // todo: set transient for group (wm_client_leader) if no parent, a la qwidget_x11.cpp
 527                 Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 528                                                XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, 32,
 529                                                1, &parentWindow));
 530             }
 531         }
 532
 533         // update _MOTIF_WM_HINTS
 534         updateMotifWmHintsBeforeMap();
 535
 536         // update _NET_WM_STATE
 537         updateNetWmStateBeforeMap();
 538     }
 539
 540     if (connection()->time() != XCB_TIME_CURRENT_TIME)
 541         updateNetWmUserTime(connection()->time());
 542
 543     Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 544     xcb_flush(xcb_connection());
 545
 546     connection()->sync();
 547 }
 548
 549 void QXcbWindow::hide()
 550 {
 551     Q_XCB_CALL(xcb_unmap_window(xcb_connection(), m_window));
 552
 553     // send synthetic UnmapNotify event according to icccm 4.1.4
 554     xcb_unmap_notify_event_t event;
 555     event.response_type = XCB_UNMAP_NOTIFY;
 556     event.event = m_screen->root();
 557     event.window = m_window;
 558     event.from_configure = false;
 559     Q_XCB_CALL(xcb_send_event(xcb_connection(), false, m_screen->root(),
 560                               XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&event));
 561
 562     xcb_flush(xcb_connection());
 563
 564     m_mapped = false;
 565 }
 566
 567 struct QtMotifWmHints {
 568     quint32 flags, functions, decorations;
 569     qint32 input_mode;
 570     quint32 status;
 571 };
 572
 573 enum {
 574     MWM_HINTS_FUNCTIONS   = (1L << 0),
 575
 576     MWM_FUNC_ALL      = (1L << 0),
 577     MWM_FUNC_RESIZE   = (1L << 1),
 578     MWM_FUNC_MOVE     = (1L << 2),
 579     MWM_FUNC_MINIMIZE = (1L << 3),
 580     MWM_FUNC_MAXIMIZE = (1L << 4),
 581     MWM_FUNC_CLOSE    = (1L << 5),
 582
 583     MWM_HINTS_DECORATIONS = (1L << 1),
 584
 585     MWM_DECOR_ALL      = (1L << 0),
 586     MWM_DECOR_BORDER   = (1L << 1),
 587     MWM_DECOR_RESIZEH  = (1L << 2),
 588     MWM_DECOR_TITLE    = (1L << 3),
 589     MWM_DECOR_MENU     = (1L << 4),
 590     MWM_DECOR_MINIMIZE = (1L << 5),
 591     MWM_DECOR_MAXIMIZE = (1L << 6),
 592
 593     MWM_HINTS_INPUT_MODE = (1L << 2),
 594
 595     MWM_INPUT_MODELESS                  = 0L,
 596     MWM_INPUT_PRIMARY_APPLICATION_MODAL = 1L,
 597     MWM_INPUT_FULL_APPLICATION_MODAL    = 3L
 598 };
 599
 600 static QtMotifWmHints getMotifWmHints(QXcbConnection *c, xcb_window_t window)
 601 {
 602     QtMotifWmHints hints;
 603
 604     xcb_get_property_cookie_t get_cookie =
 605         xcb_get_property_unchecked(c->xcb_connection(), 0, window, c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 606                          c->atom(QXcbAtom::_MOTIF_WM_HINTS), 0, 20);
 607
 608     xcb_get_property_reply_t *reply =
 609         xcb_get_property_reply(c->xcb_connection(), get_cookie, NULL);
 610
 611     if (reply && reply->format == 32 && reply->type == c->atom(QXcbAtom::_MOTIF_WM_HINTS)) {
 612         hints = *((QtMotifWmHints *)xcb_get_property_value(reply));
 613     } else {
 614         hints.flags = 0L;
 615         hints.functions = MWM_FUNC_ALL;
 616         hints.decorations = MWM_DECOR_ALL;
 617         hints.input_mode = 0L;
 618         hints.status = 0L;
 619     }
 620
 621     free(reply);
 622
 623     return hints;
 624 }
 625
 626 static void setMotifWmHints(QXcbConnection *c, xcb_window_t window, const QtMotifWmHints &hints)
 627 {
 628     if (hints.flags != 0l) {
 629         Q_XCB_CALL2(xcb_change_property(c->xcb_connection(),
 630                                        XCB_PROP_MODE_REPLACE,
 631                                        window,
 632                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 633                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 634                                        32,
 635                                        5,
 636                                        &hints), c);
 637     } else {
 638         Q_XCB_CALL2(xcb_delete_property(c->xcb_connection(), window, c->atom(QXcbAtom::_MOTIF_WM_HINTS)), c);
 639     }
 640 }
 641
 642 QXcbWindow::NetWmStates QXcbWindow::netWmStates()
 643 {
 644     NetWmStates result(0);
 645
 646     xcb_get_property_cookie_t get_cookie =
 647         xcb_get_property_unchecked(xcb_connection(), 0, m_window, atom(QXcbAtom::_NET_WM_STATE),
 648                          XCB_ATOM_ATOM, 0, 1024);
 649
 650     xcb_get_property_reply_t *reply =
 651         xcb_get_property_reply(xcb_connection(), get_cookie, NULL);
 652
 653     if (reply && reply->format == 32 && reply->type == XCB_ATOM_ATOM) {
 654         const xcb_atom_t *states = static_cast<const xcb_atom_t *>(xcb_get_property_value(reply));
 655         const xcb_atom_t *statesEnd = states + reply->length;
 656         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_ABOVE)))
 657             result |= NetWmStateAbove;
 658         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_BELOW)))
 659             result |= NetWmStateBelow;
 660         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN)))
 661             result |= NetWmStateFullScreen;
 662         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ)))
 663             result |= NetWmStateMaximizedHorz;
 664         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT)))
 665             result |= NetWmStateMaximizedVert;
 666         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MODAL)))
 667             result |= NetWmStateModal;
 668         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP)))
 669             result |= NetWmStateStaysOnTop;
 670         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_DEMANDS_ATTENTION)))
 671             result |= NetWmStateDemandsAttention;
 672         free(reply);
 673     } else {
 674 #ifdef NET_WM_STATE_DEBUG
 675         printf("getting net wm state (%x), empty\n", m_window);
 676 #endif
 677     }
 678
 679     return result;
 680 }
 681
 682 void QXcbWindow::setNetWmStates(NetWmStates states)
 683 {
 684     QVector<xcb_atom_t> atoms;
 685     if (states & NetWmStateAbove)
 686         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_ABOVE));
 687     if (states & NetWmStateBelow)
 688         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_BELOW));
 689     if (states & NetWmStateFullScreen)
 690         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 691     if (states & NetWmStateMaximizedHorz)
 692         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ));
 693     if (states & NetWmStateMaximizedVert)
 694         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 695     if (states & NetWmStateModal)
 696         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MODAL));
 697     if (states & NetWmStateStaysOnTop)
 698         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP));
 699     if (states & NetWmStateDemandsAttention)
 700         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_DEMANDS_ATTENTION));
 701
 702     if (atoms.isEmpty()) {
 703         Q_XCB_CALL(xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_STATE)));
 704     } else {
 705         Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 706                                        atom(QXcbAtom::_NET_WM_STATE), XCB_ATOM_ATOM, 32,
 707                                        atoms.count(), atoms.constData()));
 708     }
 709     xcb_flush(xcb_connection());
 710 }
 711
 712 Qt::WindowFlags QXcbWindow::setWindowFlags(Qt::WindowFlags flags)
 713 {
 714     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 715
 716     if (type == Qt::ToolTip)
 717         flags |= Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint;
 718     if (type == Qt::Popup)
 719         flags |= Qt::X11BypassWindowManagerHint;
 720
 721     if (flags & Qt::WindowTransparentForInput) {
 722         uint32_t mask = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_VISIBILITY_CHANGE
 723                  | XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_RESIZE_REDIRECT
 724                 | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT
 725                 | XCB_EVENT_MASK_FOCUS_CHANGE  | XCB_EVENT_MASK_PROPERTY_CHANGE
 726                 | XCB_EVENT_MASK_COLOR_MAP_CHANGE | XCB_EVENT_MASK_OWNER_GRAB_BUTTON;
 727         xcb_change_window_attributes(xcb_connection(), xcb_window(), XCB_CW_EVENT_MASK, &mask);
 728     }
 729
 730     setNetWmWindowFlags(flags);
 731     setMotifWindowFlags(flags);
 732
 733     setTransparentForMouseEvents(flags & Qt::WindowTransparentForInput);
 734     updateDoesNotAcceptFocus(flags & Qt::WindowDoesNotAcceptFocus);
 735
 736     return flags;
 737 }
 738
 739 void QXcbWindow::setMotifWindowFlags(Qt::WindowFlags flags)
 740 {
 741     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 742
 743     QtMotifWmHints mwmhints;
 744     mwmhints.flags = 0L;
 745     mwmhints.functions = 0L;
 746     mwmhints.decorations = 0;
 747     mwmhints.input_mode = 0L;
 748     mwmhints.status = 0L;
 749
 750     if (type != Qt::SplashScreen) {
 751         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 752
 753         bool customize = flags & Qt::CustomizeWindowHint;
 754         if (!(flags & Qt::FramelessWindowHint) && !(customize && !(flags & Qt::WindowTitleHint))) {
 755             mwmhints.decorations |= MWM_DECOR_BORDER;
 756             mwmhints.decorations |= MWM_DECOR_RESIZEH;
 757
 758             if (flags & Qt::WindowTitleHint)
 759                 mwmhints.decorations |= MWM_DECOR_TITLE;
 760
 761             if (flags & Qt::WindowSystemMenuHint)
 762                 mwmhints.decorations |= MWM_DECOR_MENU;
 763
 764             if (flags & Qt::WindowMinimizeButtonHint) {
 765                 mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 766                 mwmhints.functions |= MWM_FUNC_MINIMIZE;
 767             }
 768
 769             if (flags & Qt::WindowMaximizeButtonHint) {
 770                 mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 771                 mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 772             }
 773
 774             if (flags & Qt::WindowCloseButtonHint)
 775                 mwmhints.functions |= MWM_FUNC_CLOSE;
 776         }
 777     } else {
 778         // if type == Qt::SplashScreen
 779         mwmhints.decorations = MWM_DECOR_ALL;
 780     }
 781
 782     if (mwmhints.functions != 0) {
 783         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 784         mwmhints.functions |= MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 785     } else {
 786         mwmhints.functions = MWM_FUNC_ALL;
 787     }
 788
 789     if (!(flags & Qt::FramelessWindowHint)
 790         && flags & Qt::CustomizeWindowHint
 791         && flags & Qt::WindowTitleHint
 792         && !(flags &
 793              (Qt::WindowMinimizeButtonHint
 794               | Qt::WindowMaximizeButtonHint
 795               | Qt::WindowCloseButtonHint)))
 796     {
 797         // a special case - only the titlebar without any button
 798         mwmhints.flags = MWM_HINTS_FUNCTIONS;
 799         mwmhints.functions = MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 800         mwmhints.decorations = 0;
 801     }
 802
 803     setMotifWmHints(connection(), m_window, mwmhints);
 804 }
 805
 806 void QXcbWindow::changeNetWmState(bool set, xcb_atom_t one, xcb_atom_t two)
 807 {
 808     xcb_client_message_event_t event;
 809
 810     event.response_type = XCB_CLIENT_MESSAGE;
 811     event.format = 32;
 812     event.window = m_window;
 813     event.type = atom(QXcbAtom::_NET_WM_STATE);
 814     event.data.data32[0] = set ? 1 : 0;
 815     event.data.data32[1] = one;
 816     event.data.data32[2] = two;
 817     event.data.data32[3] = 0;
 818     event.data.data32[4] = 0;
 819
 820     Q_XCB_CALL(xcb_send_event(xcb_connection(), 0, m_screen->root(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&event));
 821 }
 822
 823 Qt::WindowState QXcbWindow::setWindowState(Qt::WindowState state)
 824 {
 825     if (state == m_windowState)
 826         return state;
 827
 828     // unset old state
 829     switch (m_windowState) {
 830     case Qt::WindowMinimized:
 831         Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 832         break;
 833     case Qt::WindowMaximized:
 834         changeNetWmState(false,
 835                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 836                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 837         break;
 838     case Qt::WindowFullScreen:
 839         changeNetWmState(false, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 840         break;
 841     default:
 842         break;
 843     }
 844
 845     // set new state
 846     switch (state) {
 847     case Qt::WindowMinimized:
 848         {
 849             xcb_client_message_event_t event;
 850
 851             event.response_type = XCB_CLIENT_MESSAGE;
 852             event.format = 32;
 853             event.window = m_window;
 854             event.type = atom(QXcbAtom::WM_CHANGE_STATE);
 855             event.data.data32[0] = XCB_WM_STATE_ICONIC;
 856             event.data.data32[1] = 0;
 857             event.data.data32[2] = 0;
 858             event.data.data32[3] = 0;
 859             event.data.data32[4] = 0;
 860
 861             Q_XCB_CALL(xcb_send_event(xcb_connection(), 0, m_screen->root(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&event));
 862         }
 863         break;
 864     case Qt::WindowMaximized:
 865         changeNetWmState(true,
 866                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 867                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 868         break;
 869     case Qt::WindowFullScreen:
 870         changeNetWmState(true, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 871         break;
 872     case Qt::WindowNoState:
 873         break;
 874     default:
 875         break;
 876     }
 877
 878     connection()->sync();
 879
 880     m_windowState = state;
 881     return m_windowState;
 882 }
 883
 884 void QXcbWindow::setNetWmWindowFlags(Qt::WindowFlags flags)
 885 {
 886     // in order of decreasing priority
 887     QVector<uint> windowTypes;
 888
 889     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 890
 891     switch (type) {
 892     case Qt::Dialog:
 893     case Qt::Sheet:
 894         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_DIALOG));
 895         break;
 896     case Qt::Tool:
 897     case Qt::Drawer:
 898         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_UTILITY));
 899         break;
 900     case Qt::ToolTip:
 901         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_TOOLTIP));
 902         break;
 903     case Qt::SplashScreen:
 904         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_SPLASH));
 905         break;
 906     default:
 907         break;
 908     }
 909
 910     if (flags & Qt::FramelessWindowHint)
 911         windowTypes.append(atom(QXcbAtom::_KDE_NET_WM_WINDOW_TYPE_OVERRIDE));
 912
 913     windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_NORMAL));
 914
 915     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 916                                    atom(QXcbAtom::_NET_WM_WINDOW_TYPE), XCB_ATOM_ATOM, 32,
 917                                    windowTypes.count(), windowTypes.constData()));
 918 }
 919
 920 void QXcbWindow::updateMotifWmHintsBeforeMap()
 921 {
 922     QtMotifWmHints mwmhints = getMotifWmHints(connection(), m_window);
 923
 924     if (window()->windowModality() != Qt::NonModal) {
 925         switch (window()->windowModality()) {
 926         case Qt::WindowModal:
 927             mwmhints.input_mode = MWM_INPUT_PRIMARY_APPLICATION_MODAL;
 928             break;
 929         case Qt::ApplicationModal:
 930         default:
 931             mwmhints.input_mode = MWM_INPUT_FULL_APPLICATION_MODAL;
 932             break;
 933         }
 934         mwmhints.flags |= MWM_HINTS_INPUT_MODE;
 935     } else {
 936         mwmhints.input_mode = MWM_INPUT_MODELESS;
 937         mwmhints.flags &= ~MWM_HINTS_INPUT_MODE;
 938     }
 939
 940     if (window()->minimumSize() == window()->maximumSize()) {
 941         // fixed size, remove the resize handle (since mwm/dtwm
 942         // isn't smart enough to do it itself)
 943         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 944         if (mwmhints.functions == MWM_FUNC_ALL) {
 945             mwmhints.functions = MWM_FUNC_MOVE;
 946         } else {
 947             mwmhints.functions &= ~MWM_FUNC_RESIZE;
 948         }
 949
 950         if (mwmhints.decorations == MWM_DECOR_ALL) {
 951             mwmhints.flags |= MWM_HINTS_DECORATIONS;
 952             mwmhints.decorations = (MWM_DECOR_BORDER
 953                                     | MWM_DECOR_TITLE
 954                                     | MWM_DECOR_MENU);
 955         } else {
 956             mwmhints.decorations &= ~MWM_DECOR_RESIZEH;
 957         }
 958     }
 959
 960     if (window()->windowFlags() & Qt::WindowMinimizeButtonHint) {
 961         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 962         mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 963         mwmhints.functions |= MWM_FUNC_MINIMIZE;
 964     }
 965     if (window()->windowFlags() & Qt::WindowMaximizeButtonHint) {
 966         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 967         mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 968         mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 969     }
 970     if (window()->windowFlags() & Qt::WindowCloseButtonHint)
 971         mwmhints.functions |= MWM_FUNC_CLOSE;
 972
 973     setMotifWmHints(connection(), m_window, mwmhints);
 974 }
 975
 976 void QXcbWindow::updateNetWmStateBeforeMap()
 977 {
 978     NetWmStates states(0);
 979
 980     const Qt::WindowFlags flags = window()->windowFlags();
 981     if (flags & Qt::WindowStaysOnTopHint) {
 982         states |= NetWmStateAbove;
 983         states |= NetWmStateStaysOnTop;
 984     } else if (flags & Qt::WindowStaysOnBottomHint) {
 985         states |= NetWmStateBelow;
 986     }
 987
 988     if (window()->windowState() & Qt::WindowFullScreen)
 989         states |= NetWmStateFullScreen;
 990
 991     if (window()->windowState() & Qt::WindowMaximized) {
 992         states |= NetWmStateMaximizedHorz;
 993         states |= NetWmStateMaximizedVert;
 994     }
 995
 996     if (window()->windowModality() != Qt::NonModal)
 997         states |= NetWmStateModal;
 998
 999     setNetWmStates(states);
1000 }
1001
1002 void QXcbWindow::updateNetWmUserTime(xcb_timestamp_t timestamp)
1003 {
1004     xcb_window_t wid = m_window;
1005
1006     const bool isSupportedByWM = connection()->wmSupport()->isSupportedByWM(atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
1007     if (m_netWmUserTimeWindow || isSupportedByWM) {
1008         if (!m_netWmUserTimeWindow) {
1009             m_netWmUserTimeWindow = xcb_generate_id(xcb_connection());
1010             Q_XCB_CALL(xcb_create_window(xcb_connection(),
1011                                          XCB_COPY_FROM_PARENT,            // depth -- same as root
1012                                          m_netWmUserTimeWindow,                        // window id
1013                                          m_window,                   // parent window id
1014                                          -1, -1, 1, 1,
1015                                          0,                               // border width
1016                                          XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
1017                                          m_visualId,                      // visual
1018                                          0,                               // value mask
1019                                          0));                             // value list
1020             wid = m_netWmUserTimeWindow;
1021             xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW),
1022                                 XCB_ATOM_WINDOW, 32, 1, &m_netWmUserTimeWindow);
1023             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME));
1024         } else if (!isSupportedByWM) {
1025             // WM no longer supports it, then we should remove the
1026             // _NET_WM_USER_TIME_WINDOW atom.
1027             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
1028             xcb_destroy_window(xcb_connection(), m_netWmUserTimeWindow);
1029             m_netWmUserTimeWindow = XCB_NONE;
1030         } else {
1031             wid = m_netWmUserTimeWindow;
1032         }
1033     }
1034     xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, wid, atom(QXcbAtom::_NET_WM_USER_TIME),
1035                         XCB_ATOM_CARDINAL, 32, 1, &timestamp);
1036 }
1037
1038 void QXcbWindow::setTransparentForMouseEvents(bool transparent)
1039 {
1040     if (transparent == m_transparent)
1041         return;
1042
1043     xcb_rectangle_t rectangle;
1044
1045     xcb_rectangle_t *rect = 0;
1046     int nrect = 0;
1047
1048     if (!transparent) {
1049         rectangle.x = 0;
1050         rectangle.y = 0;
1051         rectangle.width = geometry().width();
1052         rectangle.height = geometry().height();
1053         rect = &rectangle;
1054         nrect = 1;
1055     }
1056
1057     xcb_xfixes_region_t region = xcb_generate_id(xcb_connection());
1058     xcb_xfixes_create_region(xcb_connection(), region, nrect, rect);
1059     xcb_xfixes_set_window_shape_region_checked(xcb_connection(), m_window, XCB_SHAPE_SK_INPUT, 0, 0, region);
1060     xcb_xfixes_destroy_region(xcb_connection(), region);
1061
1062     m_transparent = transparent;
1063 }
1064
1065 void QXcbWindow::updateDoesNotAcceptFocus(bool doesNotAcceptFocus)
1066 {
1067     xcb_get_property_cookie_t cookie = xcb_get_wm_hints_unchecked(xcb_connection(), m_window);
1068
1069     xcb_wm_hints_t hints;
1070     if (!xcb_get_wm_hints_reply(xcb_connection(), cookie, &hints, NULL)) {
1071         return;
1072     }
1073
1074     xcb_wm_hints_set_input(&hints, !doesNotAcceptFocus);
1075     xcb_set_wm_hints(xcb_connection(), m_window, &hints);
1076 }
1077
1078 WId QXcbWindow::winId() const
1079 {
1080     return m_window;
1081 }
1082
1083 void QXcbWindow::setParent(const QPlatformWindow *parent)
1084 {
1085     // re-create for compatibility
1086     create();
1087
1088     QPoint topLeft = geometry().topLeft();
1089
1090     xcb_window_t xcb_parent_id = parent ? static_cast<const QXcbWindow *>(parent)->xcb_window() : m_screen->root();
1091     Q_XCB_CALL(xcb_reparent_window(xcb_connection(), xcb_window(), xcb_parent_id, topLeft.x(), topLeft.y()));
1092 }
1093
1094 void QXcbWindow::setWindowTitle(const QString &title)
1095 {
1096     QByteArray ba = title.toUtf8();
1097     Q_XCB_CALL(xcb_change_property(xcb_connection(),
1098                                    XCB_PROP_MODE_REPLACE,
1099                                    m_window,
1100                                    atom(QXcbAtom::_NET_WM_NAME),
1101                                    atom(QXcbAtom::UTF8_STRING),
1102                                    8,
1103                                    ba.length(),
1104                                    ba.constData()));
1105 }
1106
1107 void QXcbWindow::raise()
1108 {
1109     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1110     const quint32 values[] = { XCB_STACK_MODE_ABOVE };
1111     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1112 }
1113
1114 void QXcbWindow::lower()
1115 {
1116     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1117     const quint32 values[] = { XCB_STACK_MODE_BELOW };
1118     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1119 }
1120
1121 void QXcbWindow::propagateSizeHints()
1122 {
1123     // update WM_NORMAL_HINTS
1124     xcb_size_hints_t hints;
1125     memset(&hints, 0, sizeof(hints));
1126
1127     QRect rect = geometry();
1128
1129     QWindow *win = window();
1130
1131     xcb_size_hints_set_position(&hints, true, rect.x(), rect.y());
1132     xcb_size_hints_set_size(&hints, true, rect.width(), rect.height());
1133     xcb_size_hints_set_win_gravity(&hints, qt_window_private(win)->positionPolicy == QWindowPrivate::WindowFrameInclusive
1134                                            ? XCB_GRAVITY_NORTH_WEST : XCB_GRAVITY_STATIC);
1135
1136     QSize minimumSize = win->minimumSize();
1137     QSize maximumSize = win->maximumSize();
1138     QSize baseSize = win->baseSize();
1139     QSize sizeIncrement = win->sizeIncrement();
1140
1141     if (minimumSize.width() > 0 || minimumSize.height() > 0)
1142         xcb_size_hints_set_min_size(&hints, minimumSize.width(), minimumSize.height());
1143
1144     if (maximumSize.width() < QWINDOWSIZE_MAX || maximumSize.height() < QWINDOWSIZE_MAX)
1145         xcb_size_hints_set_max_size(&hints,
1146                                     qMin(XCOORD_MAX, maximumSize.width()),
1147                                     qMin(XCOORD_MAX, maximumSize.height()));
1148
1149     if (sizeIncrement.width() > 0 || sizeIncrement.height() > 0) {
1150         xcb_size_hints_set_base_size(&hints, baseSize.width(), baseSize.height());
1151         xcb_size_hints_set_resize_inc(&hints, sizeIncrement.width(), sizeIncrement.height());
1152     }
1153
1154     xcb_set_wm_normal_hints(xcb_connection(), m_window, &hints);
1155 }
1156
1157 void QXcbWindow::requestActivateWindow()
1158 {
1159     if (!m_mapped) {
1160         m_deferredActivation = true;
1161         return;
1162     }
1163     m_deferredActivation = false;
1164
1165     updateNetWmUserTime(connection()->time());
1166
1167     if (window()->isTopLevel()
1168         && connection()->wmSupport()->isSupportedByWM(atom(QXcbAtom::_NET_ACTIVE_WINDOW))) {
1169         xcb_client_message_event_t event;
1170
1171         event.response_type = XCB_CLIENT_MESSAGE;
1172         event.format = 32;
1173         event.window = m_window;
1174         event.type = atom(QXcbAtom::_NET_ACTIVE_WINDOW);
1175         event.data.data32[0] = 1;
1176         event.data.data32[1] = connection()->time();
1177         QWindow *focusWindow = QGuiApplication::focusWindow();
1178         event.data.data32[2] = focusWindow ? focusWindow->winId() : XCB_NONE;
1179         event.data.data32[3] = 0;
1180         event.data.data32[4] = 0;
1181
1182         Q_XCB_CALL(xcb_send_event(xcb_connection(), 0, m_screen->root(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&event));
1183     } else {
1184         Q_XCB_CALL(xcb_set_input_focus(xcb_connection(), XCB_INPUT_FOCUS_PARENT, m_window, connection()->time()));
1185     }
1186
1187     connection()->sync();
1188 }
1189
1190 #if XCB_USE_MAEMO_WINDOW_PROPERTIES
1191 void QXcbWindow::setOrientation(Qt::ScreenOrientation orientation)
1192 {
1193     int angle = 0;
1194     switch (orientation) {
1195         case Qt::PortraitOrientation: angle = 270; break;
1196         case Qt::LandscapeOrientation: angle = 0; break;
1197         case Qt::InvertedPortraitOrientation: angle = 90; break;
1198         case Qt::InvertedLandscapeOrientation: angle = 180; break;
1199         case Qt::PrimaryOrientation: break;
1200     }
1201     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
1202                                    atom(QXcbAtom::MeegoTouchOrientationAngle), XCB_ATOM_CARDINAL, 32,
1203                                    1, &angle));
1204 }
1205 #endif
1206
1207 QSurfaceFormat QXcbWindow::format() const
1208 {
1209     // ### return actual format
1210     return m_format;
1211 }
1212
1213 #if defined(XCB_USE_EGL)
1214 QXcbEGLSurface *QXcbWindow::eglSurface() const
1215 {
1216     if (!m_eglSurface) {
1217         EGLDisplay display = connection()->egl_display();
1218         EGLConfig config = q_configFromGLFormat(display, window()->requestedFormat(), true);
1219         EGLSurface surface = eglCreateWindowSurface(display, config, (EGLNativeWindowType)m_window, 0);
1220
1221         m_eglSurface = new QXcbEGLSurface(display, surface);
1222     }
1223
1224     return m_eglSurface;
1225 }
1226 #endif
1227
1228 void QXcbWindow::handleExposeEvent(const xcb_expose_event_t *event)
1229 {
1230     QRect rect(event->x, event->y, event->width, event->height);
1231
1232     if (m_exposeRegion.isEmpty())
1233         m_exposeRegion = rect;
1234     else
1235         m_exposeRegion |= rect;
1236
1237     // if count is non-zero there are more expose events pending
1238     if (event->count == 0) {
1239         QWindowSystemInterface::handleExposeEvent(window(), m_exposeRegion);
1240         m_exposeRegion = QRegion();
1241     }
1242 }
1243
1244 void QXcbWindow::handleClientMessageEvent(const xcb_client_message_event_t *event)
1245 {
1246     if (event->format != 32)
1247         return;
1248
1249     if (event->type == atom(QXcbAtom::WM_PROTOCOLS)) {
1250         if (event->data.data32[0] == atom(QXcbAtom::WM_DELETE_WINDOW)) {
1251             QWindowSystemInterface::handleCloseEvent(window());
1252         } else if (event->data.data32[0] == atom(QXcbAtom::WM_TAKE_FOCUS)) {
1253             connection()->setTime(event->data.data32[1]);
1254         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_PING)) {
1255             xcb_client_message_event_t reply = *event;
1256
1257             reply.response_type = XCB_CLIENT_MESSAGE;
1258             reply.window = m_screen->root();
1259
1260             xcb_send_event(xcb_connection(), 0, m_screen->root(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&reply);
1261             xcb_flush(xcb_connection());
1262         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_SYNC_REQUEST)) {
1263             connection()->setTime(event->data.data32[1]);
1264             m_syncValue.lo = event->data.data32[2];
1265             m_syncValue.hi = event->data.data32[3];
1266         } else {
1267             qWarning() << "QXcbWindow: Unhandled WM_PROTOCOLS message:" << connection()->atomName(event->data.data32[0]);
1268         }
1269     } else if (event->type == atom(QXcbAtom::XdndEnter)) {
1270         connection()->drag()->handleEnter(window(), event);
1271     } else if (event->type == atom(QXcbAtom::XdndPosition)) {
1272         connection()->drag()->handlePosition(window(), event);
1273     } else if (event->type == atom(QXcbAtom::XdndLeave)) {
1274         connection()->drag()->handleLeave(window(), event);
1275     } else if (event->type == atom(QXcbAtom::XdndDrop)) {
1276         connection()->drag()->handleDrop(window(), event);
1277     } else if (event->type == atom(QXcbAtom::_XEMBED)) { // QSystemTrayIcon
1278     } else {
1279         qWarning() << "QXcbWindow: Unhandled client message:" << connection()->atomName(event->type);
1280     }
1281 }
1282
1283 void QXcbWindow::handleConfigureNotifyEvent(const xcb_configure_notify_event_t *event)
1284 {
1285     bool fromSendEvent = (event->response_type & 0x80);
1286     QPoint pos(event->x, event->y);
1287     if (!parent() && !fromSendEvent) {
1288         // Do not trust the position, query it instead.
1289         xcb_translate_coordinates_cookie_t cookie = xcb_translate_coordinates(xcb_connection(), xcb_window(),
1290                                                                               m_screen->root(), 0, 0);
1291         xcb_translate_coordinates_reply_t *reply = xcb_translate_coordinates_reply(xcb_connection(), cookie, NULL);
1292         if (reply) {
1293             pos.setX(reply->dst_x);
1294             pos.setY(reply->dst_y);
1295             free(reply);
1296         }
1297     }
1298
1299     QRect rect(pos, QSize(event->width, event->height));
1300
1301     QPlatformWindow::setGeometry(rect);
1302     QWindowSystemInterface::handleGeometryChange(window(), rect);
1303
1304     m_configureNotifyPending = false;
1305
1306     if (m_deferredExpose) {
1307         m_deferredExpose = false;
1308         QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
1309     }
1310
1311     m_dirtyFrameMargins = true;
1312
1313 #if XCB_USE_DRI2
1314     if (m_context)
1315         static_cast<QDri2Context *>(m_context)->resize(rect.size());
1316 #endif
1317 }
1318
1319 bool QXcbWindow::isExposed() const
1320 {
1321     return m_mapped;
1322 }
1323
1324 void QXcbWindow::handleMapNotifyEvent(const xcb_map_notify_event_t *event)
1325 {
1326     if (event->window == m_window) {
1327         m_mapped = true;
1328         if (m_deferredActivation)
1329             requestActivateWindow();
1330         if (m_configureNotifyPending)
1331             m_deferredExpose = true;
1332         else
1333             QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
1334     }
1335 }
1336
1337 void QXcbWindow::handleUnmapNotifyEvent(const xcb_unmap_notify_event_t *event)
1338 {
1339     if (event->window == m_window) {
1340         m_mapped = false;
1341         QWindowSystemInterface::handleExposeEvent(window(), QRegion());
1342     }
1343 }
1344
1345 static Qt::MouseButtons translateMouseButtons(int s)
1346 {
1347     Qt::MouseButtons ret = 0;
1348     if (s & XCB_BUTTON_MASK_1)
1349         ret |= Qt::LeftButton;
1350     if (s & XCB_BUTTON_MASK_2)
1351         ret |= Qt::MidButton;
1352     if (s & XCB_BUTTON_MASK_3)
1353         ret |= Qt::RightButton;
1354     return ret;
1355 }
1356
1357 static Qt::MouseButton translateMouseButton(xcb_button_t s)
1358 {
1359     switch (s) {
1360     case 1: return Qt::LeftButton;
1361     case 2: return Qt::MidButton;
1362     case 3: return Qt::RightButton;
1363     // Button values 4-7 were already handled as Wheel events, and won't occur here.
1364     case 8: return Qt::BackButton;      // Also known as Qt::ExtraButton1
1365     case 9: return Qt::ForwardButton;   // Also known as Qt::ExtraButton2
1366     case 10: return Qt::ExtraButton3;
1367     case 11: return Qt::ExtraButton4;
1368     case 12: return Qt::ExtraButton5;
1369     case 13: return Qt::ExtraButton6;
1370     case 14: return Qt::ExtraButton7;
1371     case 15: return Qt::ExtraButton8;
1372     case 16: return Qt::ExtraButton9;
1373     case 17: return Qt::ExtraButton10;
1374     case 18: return Qt::ExtraButton11;
1375     case 19: return Qt::ExtraButton12;
1376     case 20: return Qt::ExtraButton13;
1377     case 21: return Qt::ExtraButton14;
1378     case 22: return Qt::ExtraButton15;
1379     case 23: return Qt::ExtraButton16;
1380     case 24: return Qt::ExtraButton17;
1381     case 25: return Qt::ExtraButton18;
1382     case 26: return Qt::ExtraButton19;
1383     case 27: return Qt::ExtraButton20;
1384     case 28: return Qt::ExtraButton21;
1385     case 29: return Qt::ExtraButton22;
1386     case 30: return Qt::ExtraButton23;
1387     case 31: return Qt::ExtraButton24;
1388     default: return Qt::NoButton;
1389     }
1390 }
1391
1392 void QXcbWindow::handleButtonPressEvent(const xcb_button_press_event_t *event)
1393 {
1394     updateNetWmUserTime(event->time);
1395
1396     QPoint local(event->event_x, event->event_y);
1397     QPoint global(event->root_x, event->root_y);
1398
1399     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1400
1401     if (event->detail >= 4 && event->detail <= 7) {
1402         // Logic borrowed from qapplication_x11.cpp
1403         int delta = 120 * ((event->detail == 4 || event->detail == 6) ? 1 : -1);
1404         bool hor = (((event->detail == 4 || event->detail == 5)
1405                      && (modifiers & Qt::AltModifier))
1406                     || (event->detail == 6 || event->detail == 7));
1407
1408         QWindowSystemInterface::handleWheelEvent(window(), event->time,
1409                                                  local, global, delta, hor ? Qt::Horizontal : Qt::Vertical, modifiers);
1410         return;
1411     }
1412
1413     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1414 }
1415
1416 void QXcbWindow::handleButtonReleaseEvent(const xcb_button_release_event_t *event)
1417 {
1418     QPoint local(event->event_x, event->event_y);
1419     QPoint global(event->root_x, event->root_y);
1420     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1421
1422     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1423 }
1424
1425 void QXcbWindow::handleMotionNotifyEvent(const xcb_motion_notify_event_t *event)
1426 {
1427     QPoint local(event->event_x, event->event_y);
1428     QPoint global(event->root_x, event->root_y);
1429     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1430
1431     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1432 }
1433
1434 void QXcbWindow::handleMouseEvent(xcb_button_t detail, uint16_t state, xcb_timestamp_t time, const QPoint &local, const QPoint &global, Qt::KeyboardModifiers modifiers)
1435 {
1436     connection()->setTime(time);
1437
1438     Qt::MouseButtons buttons = translateMouseButtons(state);
1439     Qt::MouseButton button = translateMouseButton(detail);
1440
1441     buttons ^= button; // X event uses state *before*, Qt uses state *after*
1442
1443     QWindowSystemInterface::handleMouseEvent(window(), time, local, global, buttons, modifiers);
1444 }
1445
1446 void QXcbWindow::handleEnterNotifyEvent(const xcb_enter_notify_event_t *event)
1447 {
1448     connection()->setTime(event->time);
1449
1450     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1451         || event->detail == XCB_NOTIFY_DETAIL_VIRTUAL
1452         || event->detail == XCB_NOTIFY_DETAIL_NONLINEAR_VIRTUAL)
1453     {
1454         return;
1455     }
1456
1457     QWindowSystemInterface::handleEnterEvent(window());
1458 }
1459
1460 void QXcbWindow::handleLeaveNotifyEvent(const xcb_leave_notify_event_t *event)
1461 {
1462     connection()->setTime(event->time);
1463
1464     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1465         || event->detail == XCB_NOTIFY_DETAIL_INFERIOR)
1466     {
1467         return;
1468     }
1469
1470     QWindowSystemInterface::handleLeaveEvent(window());
1471 }
1472
1473 void QXcbWindow::handlePropertyNotifyEvent(const xcb_property_notify_event_t *event)
1474 {
1475     connection()->setTime(event->time);
1476
1477     const bool propertyDeleted = event->state == XCB_PROPERTY_DELETE;
1478     const xcb_atom_t netWmStateAtom = atom(QXcbAtom::_NET_WM_STATE);
1479     const xcb_atom_t wmStateAtom = atom(QXcbAtom::WM_STATE);
1480
1481     if (event->atom == netWmStateAtom || event->atom == wmStateAtom) {
1482         if (propertyDeleted)
1483             return;
1484
1485         Qt::WindowState newState = Qt::WindowNoState;
1486         if (event->atom == wmStateAtom) { // WM_STATE: Quick check for 'Minimize'.
1487             const xcb_get_property_cookie_t get_cookie =
1488                 xcb_get_property(xcb_connection(), 0, m_window, wmStateAtom,
1489                                  XCB_ATOM_ANY, 0, 1024);
1490
1491             xcb_get_property_reply_t *reply =
1492                 xcb_get_property_reply(xcb_connection(), get_cookie, NULL);
1493
1494             if (reply && reply->format == 32 && reply->type == wmStateAtom) {
1495                 const long *data = (const long *)xcb_get_property_value(reply);
1496                 if (reply->length != 0 && XCB_WM_STATE_ICONIC == data[0])
1497                     newState = Qt::WindowMinimized;
1498                 free(reply);
1499             }
1500         } // WM_STATE: Quick check for 'Minimize'.
1501         if (newState != Qt::WindowMinimized) { // Something else changed, get _NET_WM_STATE.
1502             const NetWmStates states = netWmStates();
1503             if ((states & NetWmStateMaximizedHorz) && (states & NetWmStateMaximizedVert))
1504                 newState = Qt::WindowMaximized;
1505             else if (states & NetWmStateFullScreen)
1506                 newState = Qt::WindowFullScreen;
1507         }
1508         // Send Window state, compress events in case other flags (modality, etc) are changed.
1509         if (m_lastWindowStateEvent != newState) {
1510             QWindowSystemInterface::handleWindowStateChanged(window(), newState);
1511             m_lastWindowStateEvent = newState;
1512         }
1513     }
1514 }
1515
1516 void QXcbWindow::handleFocusInEvent(const xcb_focus_in_event_t *)
1517 {
1518     QWindowSystemInterface::handleWindowActivated(window());
1519 }
1520
1521 static bool focusInPeeker(xcb_generic_event_t *event)
1522 {
1523     if (!event) {
1524         // FocusIn event is not in the queue, proceed with FocusOut normally.
1525         QWindowSystemInterface::handleWindowActivated(0);
1526         return true;
1527     }
1528     uint response_type = event->response_type & ~0x80;
1529     return response_type == XCB_FOCUS_IN;
1530 }
1531
1532 void QXcbWindow::handleFocusOutEvent(const xcb_focus_out_event_t *)
1533 {
1534     // Do not set the active window to 0 if there is a FocusIn coming.
1535     // There is however no equivalent for XPutBackEvent so register a
1536     // callback for QXcbConnection instead.
1537     connection()->addPeekFunc(focusInPeeker);
1538 }
1539
1540 void QXcbWindow::updateSyncRequestCounter()
1541 {
1542     if (m_screen->syncRequestSupported() && (m_syncValue.lo != 0 || m_syncValue.hi != 0)) {
1543         Q_XCB_CALL(xcb_sync_set_counter(xcb_connection(), m_syncCounter, m_syncValue));
1544         xcb_flush(xcb_connection());
1545         connection()->sync();
1546
1547         m_syncValue.lo = 0;
1548         m_syncValue.hi = 0;
1549     }
1550 }
1551
1552 bool QXcbWindow::setKeyboardGrabEnabled(bool grab)
1553 {
1554     if (!grab) {
1555         xcb_ungrab_keyboard(xcb_connection(), XCB_TIME_CURRENT_TIME);
1556         return true;
1557     }
1558     xcb_grab_keyboard_cookie_t cookie = xcb_grab_keyboard(xcb_connection(), false,
1559                                                           m_window, XCB_TIME_CURRENT_TIME,
1560                                                           XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
1561     xcb_grab_keyboard_reply_t *reply = xcb_grab_keyboard_reply(xcb_connection(), cookie, NULL);
1562     bool result = !(!reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1563     free(reply);
1564     return result;
1565 }
1566
1567 bool QXcbWindow::setMouseGrabEnabled(bool grab)
1568 {
1569     if (!grab) {
1570         xcb_ungrab_pointer(xcb_connection(), XCB_TIME_CURRENT_TIME);
1571         return true;
1572     }
1573     xcb_grab_pointer_cookie_t cookie = xcb_grab_pointer(xcb_connection(), false, m_window,
1574                                                         (XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE
1575                                                          | XCB_EVENT_MASK_BUTTON_MOTION | XCB_EVENT_MASK_ENTER_WINDOW
1576                                                          | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_POINTER_MOTION),
1577                                                         XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC,
1578                                                         XCB_WINDOW_NONE, XCB_CURSOR_NONE,
1579                                                         XCB_TIME_CURRENT_TIME);
1580     xcb_grab_pointer_reply_t *reply = xcb_grab_pointer_reply(xcb_connection(), cookie, NULL);
1581     bool result = !(!reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1582     free(reply);
1583     return result;
1584 }
1585
1586 void QXcbWindow::setCursor(xcb_cursor_t cursor)
1587 {
1588     xcb_change_window_attributes(xcb_connection(), m_window, XCB_CW_CURSOR, &cursor);
1589     xcb_flush(xcb_connection());
1590 }
1591
1592 QT_END_NAMESPACE