src/plugins/platforms/xcb/qxcbwindow.cpp

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  22 ** Alternatively, this file may be used under the terms of the GNU General
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  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 <qpa/qplatformintegration.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 <qpa/qplatformbackingstore.h>
  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 static inline bool positionIncludesFrame(QWindow *w)
 142 {
 143     return qt_window_private(w)->positionPolicy == QWindowPrivate::WindowFrameInclusive;
 144 }
 145
 146 QXcbWindow::QXcbWindow(QWindow *window)
 147     : QPlatformWindow(window)
 148     , m_window(0)
 149     , m_syncCounter(0)
 150     , m_gravity(XCB_GRAVITY_STATIC)
 151     , m_mapped(false)
 152     , m_transparent(false)
 153     , m_deferredActivation(false)
 154     , m_netWmUserTimeWindow(XCB_NONE)
 155 #if defined(XCB_USE_EGL)
 156     , m_eglSurface(0)
 157 #endif
 158     , m_lastWindowStateEvent(-1)
 159 {
 160     m_screen = static_cast<QXcbScreen *>(window->screen()->handle());
 161
 162     setConnection(m_screen->connection());
 163
 164     create();
 165 }
 166
 167 void QXcbWindow::create()
 168 {
 169     destroy();
 170
 171     m_deferredExpose = false;
 172     m_configureNotifyPending = true;
 173     m_windowState = Qt::WindowNoState;
 174
 175     Qt::WindowType type = window()->windowType();
 176
 177     if (type == Qt::Desktop) {
 178         m_window = m_screen->root();
 179         m_depth = m_screen->screen()->root_depth;
 180         m_imageFormat = imageFormatForDepth(m_depth);
 181         connection()->addWindow(m_window, this);
 182         return;
 183     }
 184
 185     // Determine gravity from initial position. Do not change
 186     // later as it will cause the window to move uncontrollably.
 187     m_gravity = positionIncludesFrame(window()) ?
 188                 XCB_GRAVITY_NORTH_WEST : XCB_GRAVITY_STATIC;
 189
 190     const quint32 mask = XCB_CW_BACK_PIXMAP | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_SAVE_UNDER | XCB_CW_EVENT_MASK;
 191     const quint32 values[] = {
 192         // XCB_CW_BACK_PIXMAP
 193         XCB_NONE,
 194         // XCB_CW_OVERRIDE_REDIRECT
 195         type == Qt::Popup || type == Qt::ToolTip,
 196         // XCB_CW_SAVE_UNDER
 197         type == Qt::Popup || type == Qt::Tool || type == Qt::SplashScreen || type == Qt::ToolTip || type == Qt::Drawer,
 198         // XCB_CW_EVENT_MASK
 199         XCB_EVENT_MASK_EXPOSURE
 200         | XCB_EVENT_MASK_STRUCTURE_NOTIFY
 201         | XCB_EVENT_MASK_KEY_PRESS
 202         | XCB_EVENT_MASK_KEY_RELEASE
 203         | XCB_EVENT_MASK_BUTTON_PRESS
 204         | XCB_EVENT_MASK_BUTTON_RELEASE
 205         | XCB_EVENT_MASK_BUTTON_MOTION
 206         | XCB_EVENT_MASK_ENTER_WINDOW
 207         | XCB_EVENT_MASK_LEAVE_WINDOW
 208         | XCB_EVENT_MASK_POINTER_MOTION
 209         | XCB_EVENT_MASK_PROPERTY_CHANGE
 210         | XCB_EVENT_MASK_FOCUS_CHANGE
 211     };
 212
 213     // Parameters to XCreateWindow() are frame corner + inner size.
 214     // This fits in case position policy is frame inclusive. There is
 215     // currently no way to implement it for frame-exclusive geometries.
 216     QRect rect = window()->geometry();
 217     QPlatformWindow::setGeometry(rect);
 218
 219     rect.setWidth(qBound(1, rect.width(), XCOORD_MAX));
 220     rect.setHeight(qBound(1, rect.height(), XCOORD_MAX));
 221
 222     xcb_window_t xcb_parent_id = m_screen->root();
 223     if (parent())
 224         xcb_parent_id = static_cast<QXcbWindow *>(parent())->xcb_window();
 225
 226     m_format = window()->requestedFormat();
 227
 228 #if (defined(XCB_USE_GLX) || defined(XCB_USE_EGL)) && defined(XCB_USE_XLIB)
 229     if (QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::OpenGL)
 230         || m_format.hasAlpha())
 231     {
 232 #if defined(XCB_USE_GLX)
 233         XVisualInfo *visualInfo = qglx_findVisualInfo(DISPLAY_FROM_XCB(m_screen), m_screen->screenNumber(), &m_format);
 234         if (!visualInfo)
 235             qFatal("Could not initialize GLX");
 236 #elif defined(XCB_USE_EGL)
 237         EGLDisplay eglDisplay = connection()->egl_display();
 238         EGLConfig eglConfig = q_configFromGLFormat(eglDisplay, m_format, true);
 239         m_format = q_glFormatFromConfig(eglDisplay, eglConfig);
 240
 241         VisualID id = QXlibEglIntegration::getCompatibleVisualId(DISPLAY_FROM_XCB(this), eglDisplay, eglConfig);
 242
 243         XVisualInfo visualInfoTemplate;
 244         memset(&visualInfoTemplate, 0, sizeof(XVisualInfo));
 245         visualInfoTemplate.visualid = id;
 246
 247         XVisualInfo *visualInfo;
 248         int matchingCount = 0;
 249         visualInfo = XGetVisualInfo(DISPLAY_FROM_XCB(this), VisualIDMask, &visualInfoTemplate, &matchingCount);
 250         if (!visualInfo)
 251             qFatal("Could not initialize EGL");
 252 #endif //XCB_USE_GLX
 253         m_depth = visualInfo->depth;
 254         m_imageFormat = imageFormatForDepth(m_depth);
 255         Colormap cmap = XCreateColormap(DISPLAY_FROM_XCB(this), xcb_parent_id, visualInfo->visual, AllocNone);
 256
 257         XSetWindowAttributes a;
 258         a.background_pixel = WhitePixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 259         a.border_pixel = BlackPixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 260         a.colormap = cmap;
 261
 262         m_visualId = visualInfo->visualid;
 263
 264         m_window = XCreateWindow(DISPLAY_FROM_XCB(this), xcb_parent_id, rect.x(), rect.y(), rect.width(), rect.height(),
 265                                   0, visualInfo->depth, InputOutput, visualInfo->visual,
 266                                   CWBackPixel|CWBorderPixel|CWColormap, &a);
 267
 268         XFree(visualInfo);
 269     } else
 270 #endif //defined(XCB_USE_GLX) || defined(XCB_USE_EGL)
 271     {
 272         m_window = xcb_generate_id(xcb_connection());
 273         m_depth = m_screen->screen()->root_depth;
 274         m_imageFormat = imageFormatForDepth(m_depth);
 275         m_visualId = m_screen->screen()->root_visual;
 276
 277         Q_XCB_CALL(xcb_create_window(xcb_connection(),
 278                                      XCB_COPY_FROM_PARENT,            // depth -- same as root
 279                                      m_window,                        // window id
 280                                      xcb_parent_id,                   // parent window id
 281                                      rect.x(),
 282                                      rect.y(),
 283                                      rect.width(),
 284                                      rect.height(),
 285                                      0,                               // border width
 286                                      XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
 287                                      m_visualId,                      // visual
 288                                      0,                               // value mask
 289                                      0));                             // value list
 290     }
 291
 292     connection()->addWindow(m_window, this);
 293
 294     Q_XCB_CALL(xcb_change_window_attributes(xcb_connection(), m_window, mask, values));
 295
 296     propagateSizeHints();
 297
 298     xcb_atom_t properties[4];
 299     int propertyCount = 0;
 300     properties[propertyCount++] = atom(QXcbAtom::WM_DELETE_WINDOW);
 301     properties[propertyCount++] = atom(QXcbAtom::WM_TAKE_FOCUS);
 302     properties[propertyCount++] = atom(QXcbAtom::_NET_WM_PING);
 303
 304     if (m_screen->syncRequestSupported())
 305         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_SYNC_REQUEST);
 306
 307     if (window()->windowFlags() & Qt::WindowContextHelpButtonHint)
 308         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_CONTEXT_HELP);
 309
 310     Q_XCB_CALL(xcb_change_property(xcb_connection(),
 311                                    XCB_PROP_MODE_REPLACE,
 312                                    m_window,
 313                                    atom(QXcbAtom::WM_PROTOCOLS),
 314                                    XCB_ATOM_ATOM,
 315                                    32,
 316                                    propertyCount,
 317                                    properties));
 318     m_syncValue.hi = 0;
 319     m_syncValue.lo = 0;
 320
 321     if (m_screen->syncRequestSupported()) {
 322         m_syncCounter = xcb_generate_id(xcb_connection());
 323         Q_XCB_CALL(xcb_sync_create_counter(xcb_connection(), m_syncCounter, m_syncValue));
 324
 325         Q_XCB_CALL(xcb_change_property(xcb_connection(),
 326                                        XCB_PROP_MODE_REPLACE,
 327                                        m_window,
 328                                        atom(QXcbAtom::_NET_WM_SYNC_REQUEST_COUNTER),
 329                                        XCB_ATOM_CARDINAL,
 330                                        32,
 331                                        1,
 332                                        &m_syncCounter));
 333     }
 334
 335     // set the PID to let the WM kill the application if unresponsive
 336     long pid = getpid();
 337     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 338                                    atom(QXcbAtom::_NET_WM_PID), XCB_ATOM_CARDINAL, 32,
 339                                    1, &pid));
 340
 341     xcb_wm_hints_t hints;
 342     memset(&hints, 0, sizeof(hints));
 343     xcb_wm_hints_set_normal(&hints);
 344
 345     xcb_wm_hints_set_input(&hints, !(window()->windowFlags() & Qt::WindowDoesNotAcceptFocus));
 346
 347     xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 348
 349     xcb_window_t leader = m_screen->clientLeader();
 350     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 351                                    atom(QXcbAtom::WM_CLIENT_LEADER), XCB_ATOM_WINDOW, 32,
 352                                    1, &leader));
 353
 354 #ifdef XCB_USE_XINPUT2_MAEMO
 355     if (connection()->isUsingXInput2()) {
 356         XIEventMask xieventmask;
 357         uchar bitmask[2] = { 0, 0 };
 358
 359         xieventmask.deviceid = XIAllMasterDevices;
 360         xieventmask.mask = bitmask;
 361         xieventmask.mask_len = sizeof(bitmask);
 362
 363         XISetMask(bitmask, XI_ButtonPress);
 364         XISetMask(bitmask, XI_ButtonRelease);
 365         XISetMask(bitmask, XI_Motion);
 366
 367         XISelectEvents(DISPLAY_FROM_XCB(this), m_window, &xieventmask, 1);
 368     }
 369 #endif
 370
 371     setWindowFlags(window()->windowFlags());
 372     setWindowTitle(window()->windowTitle());
 373     setWindowState(window()->windowState());
 374
 375     if (window()->windowFlags() & Qt::WindowTransparentForInput)
 376         setTransparentForMouseEvents(true);
 377
 378     connection()->drag()->dndEnable(this, true);
 379 }
 380
 381 QXcbWindow::~QXcbWindow()
 382 {
 383     destroy();
 384 }
 385
 386 void QXcbWindow::destroy()
 387 {
 388     if (m_syncCounter && m_screen->syncRequestSupported())
 389         Q_XCB_CALL(xcb_sync_destroy_counter(xcb_connection(), m_syncCounter));
 390     if (m_window) {
 391         if (m_netWmUserTimeWindow) {
 392             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
 393             // Some window managers, like metacity, do XSelectInput on the _NET_WM_USER_TIME_WINDOW window,
 394             // without trapping BadWindow (which crashes when the user time window is destroyed).
 395             connection()->sync();
 396             xcb_destroy_window(xcb_connection(), m_netWmUserTimeWindow);
 397             m_netWmUserTimeWindow = XCB_NONE;
 398         }
 399         connection()->removeWindow(m_window);
 400         Q_XCB_CALL(xcb_destroy_window(xcb_connection(), m_window));
 401     }
 402     m_mapped = false;
 403
 404 #if defined(XCB_USE_EGL)
 405     delete m_eglSurface;
 406     m_eglSurface = 0;
 407 #endif
 408 }
 409
 410 void QXcbWindow::setGeometry(const QRect &rect)
 411 {
 412     QPlatformWindow::setGeometry(rect);
 413
 414     propagateSizeHints();
 415     const QRect wmGeometry = windowToWmGeometry(rect);
 416
 417     const quint32 mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
 418     const qint32 values[] = {
 419         qBound<qint32>(-XCOORD_MAX, wmGeometry.x(),      XCOORD_MAX),
 420         qBound<qint32>(-XCOORD_MAX, wmGeometry.y(),      XCOORD_MAX),
 421         qBound<qint32>(1,           wmGeometry.width(),  XCOORD_MAX),
 422         qBound<qint32>(1,           wmGeometry.height(), XCOORD_MAX),
 423     };
 424
 425     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, reinterpret_cast<const quint32*>(values)));
 426
 427     xcb_flush(xcb_connection());
 428 }
 429
 430 QMargins QXcbWindow::frameMargins() const
 431 {
 432     if (m_dirtyFrameMargins) {
 433         xcb_window_t window = m_window;
 434         xcb_window_t parent = m_window;
 435
 436         bool foundRoot = false;
 437
 438         const QVector<xcb_window_t> &virtualRoots =
 439             connection()->wmSupport()->virtualRoots();
 440
 441         while (!foundRoot) {
 442             xcb_query_tree_cookie_t cookie = xcb_query_tree_unchecked(xcb_connection(), parent);
 443
 444             xcb_query_tree_reply_t *reply = xcb_query_tree_reply(xcb_connection(), cookie, NULL);
 445             if (reply) {
 446                 if (reply->root == reply->parent || virtualRoots.indexOf(reply->parent) != -1) {
 447                     foundRoot = true;
 448                 } else {
 449                     window = parent;
 450                     parent = reply->parent;
 451                 }
 452
 453                 free(reply);
 454             } else {
 455                 m_dirtyFrameMargins = false;
 456                 m_frameMargins = QMargins();
 457                 return m_frameMargins;
 458             }
 459         }
 460
 461         QPoint offset;
 462
 463         xcb_translate_coordinates_reply_t *reply =
 464             xcb_translate_coordinates_reply(
 465                 xcb_connection(),
 466                 xcb_translate_coordinates(xcb_connection(), window, parent, 0, 0),
 467                 NULL);
 468
 469         if (reply) {
 470             offset = QPoint(reply->dst_x, reply->dst_y);
 471             free(reply);
 472         }
 473
 474         xcb_get_geometry_reply_t *geom =
 475             xcb_get_geometry_reply(
 476                 xcb_connection(),
 477                 xcb_get_geometry(xcb_connection(), parent),
 478                 NULL);
 479
 480         if (geom) {
 481             // --
 482             // add the border_width for the window managers frame... some window managers
 483             // do not use a border_width of zero for their frames, and if we the left and
 484             // top strut, we ensure that pos() is absolutely correct.  frameGeometry()
 485             // will still be incorrect though... perhaps i should have foffset as well, to
 486             // indicate the frame offset (equal to the border_width on X).
 487             // - Brad
 488             // -- copied from qwidget_x11.cpp
 489
 490             int left = offset.x() + geom->border_width;
 491             int top = offset.y() + geom->border_width;
 492             int right = geom->width + geom->border_width - geometry().width() - offset.x();
 493             int bottom = geom->height + geom->border_width - geometry().height() - offset.y();
 494
 495             m_frameMargins = QMargins(left, top, right, bottom);
 496
 497             free(geom);
 498         }
 499
 500         m_dirtyFrameMargins = false;
 501     }
 502
 503     return m_frameMargins;
 504 }
 505
 506 void QXcbWindow::setVisible(bool visible)
 507 {
 508     if (visible)
 509         show();
 510     else
 511         hide();
 512 }
 513
 514 void QXcbWindow::show()
 515 {
 516     if (window()->isTopLevel()) {
 517         xcb_get_property_cookie_t cookie = xcb_get_wm_hints_unchecked(xcb_connection(), m_window);
 518
 519         xcb_wm_hints_t hints;
 520         xcb_get_wm_hints_reply(xcb_connection(), cookie, &hints, NULL);
 521
 522         if (window()->windowState() & Qt::WindowMinimized)
 523             xcb_wm_hints_set_iconic(&hints);
 524         else
 525             xcb_wm_hints_set_normal(&hints);
 526
 527         xcb_wm_hints_set_input(&hints, !(window()->windowFlags() & Qt::WindowDoesNotAcceptFocus));
 528
 529         xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 530
 531         // update WM_NORMAL_HINTS
 532         propagateSizeHints();
 533
 534         // update WM_TRANSIENT_FOR
 535         if (window()->transientParent() && isTransient(window())) {
 536             QXcbWindow *transientXcbParent = static_cast<QXcbWindow *>(window()->transientParent()->handle());
 537             if (transientXcbParent) {
 538                 // ICCCM 4.1.2.6
 539                 xcb_window_t parentWindow = transientXcbParent->xcb_window();
 540
 541                 // todo: set transient for group (wm_client_leader) if no parent, a la qwidget_x11.cpp
 542                 Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 543                                                XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, 32,
 544                                                1, &parentWindow));
 545             }
 546         }
 547
 548         // update _MOTIF_WM_HINTS
 549         updateMotifWmHintsBeforeMap();
 550
 551         // update _NET_WM_STATE
 552         updateNetWmStateBeforeMap();
 553     }
 554
 555     if (connection()->time() != XCB_TIME_CURRENT_TIME)
 556         updateNetWmUserTime(connection()->time());
 557
 558     Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 559     xcb_flush(xcb_connection());
 560
 561     connection()->sync();
 562 }
 563
 564 void QXcbWindow::hide()
 565 {
 566     Q_XCB_CALL(xcb_unmap_window(xcb_connection(), m_window));
 567
 568     // send synthetic UnmapNotify event according to icccm 4.1.4
 569     xcb_unmap_notify_event_t event;
 570     event.response_type = XCB_UNMAP_NOTIFY;
 571     event.event = m_screen->root();
 572     event.window = m_window;
 573     event.from_configure = false;
 574     Q_XCB_CALL(xcb_send_event(xcb_connection(), false, m_screen->root(),
 575                               XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&event));
 576
 577     xcb_flush(xcb_connection());
 578
 579     m_mapped = false;
 580 }
 581
 582 struct QtMotifWmHints {
 583     quint32 flags, functions, decorations;
 584     qint32 input_mode;
 585     quint32 status;
 586 };
 587
 588 enum {
 589     MWM_HINTS_FUNCTIONS   = (1L << 0),
 590
 591     MWM_FUNC_ALL      = (1L << 0),
 592     MWM_FUNC_RESIZE   = (1L << 1),
 593     MWM_FUNC_MOVE     = (1L << 2),
 594     MWM_FUNC_MINIMIZE = (1L << 3),
 595     MWM_FUNC_MAXIMIZE = (1L << 4),
 596     MWM_FUNC_CLOSE    = (1L << 5),
 597
 598     MWM_HINTS_DECORATIONS = (1L << 1),
 599
 600     MWM_DECOR_ALL      = (1L << 0),
 601     MWM_DECOR_BORDER   = (1L << 1),
 602     MWM_DECOR_RESIZEH  = (1L << 2),
 603     MWM_DECOR_TITLE    = (1L << 3),
 604     MWM_DECOR_MENU     = (1L << 4),
 605     MWM_DECOR_MINIMIZE = (1L << 5),
 606     MWM_DECOR_MAXIMIZE = (1L << 6),
 607
 608     MWM_HINTS_INPUT_MODE = (1L << 2),
 609
 610     MWM_INPUT_MODELESS                  = 0L,
 611     MWM_INPUT_PRIMARY_APPLICATION_MODAL = 1L,
 612     MWM_INPUT_FULL_APPLICATION_MODAL    = 3L
 613 };
 614
 615 static QtMotifWmHints getMotifWmHints(QXcbConnection *c, xcb_window_t window)
 616 {
 617     QtMotifWmHints hints;
 618
 619     xcb_get_property_cookie_t get_cookie =
 620         xcb_get_property_unchecked(c->xcb_connection(), 0, window, c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 621                          c->atom(QXcbAtom::_MOTIF_WM_HINTS), 0, 20);
 622
 623     xcb_get_property_reply_t *reply =
 624         xcb_get_property_reply(c->xcb_connection(), get_cookie, NULL);
 625
 626     if (reply && reply->format == 32 && reply->type == c->atom(QXcbAtom::_MOTIF_WM_HINTS)) {
 627         hints = *((QtMotifWmHints *)xcb_get_property_value(reply));
 628     } else {
 629         hints.flags = 0L;
 630         hints.functions = MWM_FUNC_ALL;
 631         hints.decorations = MWM_DECOR_ALL;
 632         hints.input_mode = 0L;
 633         hints.status = 0L;
 634     }
 635
 636     free(reply);
 637
 638     return hints;
 639 }
 640
 641 static void setMotifWmHints(QXcbConnection *c, xcb_window_t window, const QtMotifWmHints &hints)
 642 {
 643     if (hints.flags != 0l) {
 644         Q_XCB_CALL2(xcb_change_property(c->xcb_connection(),
 645                                        XCB_PROP_MODE_REPLACE,
 646                                        window,
 647                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 648                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 649                                        32,
 650                                        5,
 651                                        &hints), c);
 652     } else {
 653         Q_XCB_CALL2(xcb_delete_property(c->xcb_connection(), window, c->atom(QXcbAtom::_MOTIF_WM_HINTS)), c);
 654     }
 655 }
 656
 657 QXcbWindow::NetWmStates QXcbWindow::netWmStates()
 658 {
 659     NetWmStates result(0);
 660
 661     xcb_get_property_cookie_t get_cookie =
 662         xcb_get_property_unchecked(xcb_connection(), 0, m_window, atom(QXcbAtom::_NET_WM_STATE),
 663                          XCB_ATOM_ATOM, 0, 1024);
 664
 665     xcb_get_property_reply_t *reply =
 666         xcb_get_property_reply(xcb_connection(), get_cookie, NULL);
 667
 668     if (reply && reply->format == 32 && reply->type == XCB_ATOM_ATOM) {
 669         const xcb_atom_t *states = static_cast<const xcb_atom_t *>(xcb_get_property_value(reply));
 670         const xcb_atom_t *statesEnd = states + reply->length;
 671         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_ABOVE)))
 672             result |= NetWmStateAbove;
 673         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_BELOW)))
 674             result |= NetWmStateBelow;
 675         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN)))
 676             result |= NetWmStateFullScreen;
 677         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ)))
 678             result |= NetWmStateMaximizedHorz;
 679         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT)))
 680             result |= NetWmStateMaximizedVert;
 681         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MODAL)))
 682             result |= NetWmStateModal;
 683         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP)))
 684             result |= NetWmStateStaysOnTop;
 685         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_DEMANDS_ATTENTION)))
 686             result |= NetWmStateDemandsAttention;
 687         free(reply);
 688     } else {
 689 #ifdef NET_WM_STATE_DEBUG
 690         printf("getting net wm state (%x), empty\n", m_window);
 691 #endif
 692     }
 693
 694     return result;
 695 }
 696
 697 void QXcbWindow::setNetWmStates(NetWmStates states)
 698 {
 699     QVector<xcb_atom_t> atoms;
 700     if (states & NetWmStateAbove)
 701         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_ABOVE));
 702     if (states & NetWmStateBelow)
 703         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_BELOW));
 704     if (states & NetWmStateFullScreen)
 705         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 706     if (states & NetWmStateMaximizedHorz)
 707         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ));
 708     if (states & NetWmStateMaximizedVert)
 709         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 710     if (states & NetWmStateModal)
 711         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MODAL));
 712     if (states & NetWmStateStaysOnTop)
 713         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP));
 714     if (states & NetWmStateDemandsAttention)
 715         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_DEMANDS_ATTENTION));
 716
 717     if (atoms.isEmpty()) {
 718         Q_XCB_CALL(xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_STATE)));
 719     } else {
 720         Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 721                                        atom(QXcbAtom::_NET_WM_STATE), XCB_ATOM_ATOM, 32,
 722                                        atoms.count(), atoms.constData()));
 723     }
 724     xcb_flush(xcb_connection());
 725 }
 726
 727 Qt::WindowFlags QXcbWindow::setWindowFlags(Qt::WindowFlags flags)
 728 {
 729     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 730
 731     if (type == Qt::ToolTip)
 732         flags |= Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint;
 733     if (type == Qt::Popup)
 734         flags |= Qt::X11BypassWindowManagerHint;
 735
 736     if (flags & Qt::WindowTransparentForInput) {
 737         uint32_t mask = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_VISIBILITY_CHANGE
 738                  | XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_RESIZE_REDIRECT
 739                 | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT
 740                 | XCB_EVENT_MASK_FOCUS_CHANGE  | XCB_EVENT_MASK_PROPERTY_CHANGE
 741                 | XCB_EVENT_MASK_COLOR_MAP_CHANGE | XCB_EVENT_MASK_OWNER_GRAB_BUTTON;
 742         xcb_change_window_attributes(xcb_connection(), xcb_window(), XCB_CW_EVENT_MASK, &mask);
 743     }
 744
 745     setNetWmWindowFlags(flags);
 746     setMotifWindowFlags(flags);
 747
 748     setTransparentForMouseEvents(flags & Qt::WindowTransparentForInput);
 749     updateDoesNotAcceptFocus(flags & Qt::WindowDoesNotAcceptFocus);
 750
 751     return flags;
 752 }
 753
 754 void QXcbWindow::setMotifWindowFlags(Qt::WindowFlags flags)
 755 {
 756     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 757
 758     QtMotifWmHints mwmhints;
 759     mwmhints.flags = 0L;
 760     mwmhints.functions = 0L;
 761     mwmhints.decorations = 0;
 762     mwmhints.input_mode = 0L;
 763     mwmhints.status = 0L;
 764
 765     if (type != Qt::SplashScreen) {
 766         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 767
 768         bool customize = flags & Qt::CustomizeWindowHint;
 769         if (!(flags & Qt::FramelessWindowHint) && !(customize && !(flags & Qt::WindowTitleHint))) {
 770             mwmhints.decorations |= MWM_DECOR_BORDER;
 771             mwmhints.decorations |= MWM_DECOR_RESIZEH;
 772
 773             if (flags & Qt::WindowTitleHint)
 774                 mwmhints.decorations |= MWM_DECOR_TITLE;
 775
 776             if (flags & Qt::WindowSystemMenuHint)
 777                 mwmhints.decorations |= MWM_DECOR_MENU;
 778
 779             if (flags & Qt::WindowMinimizeButtonHint) {
 780                 mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 781                 mwmhints.functions |= MWM_FUNC_MINIMIZE;
 782             }
 783
 784             if (flags & Qt::WindowMaximizeButtonHint) {
 785                 mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 786                 mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 787             }
 788
 789             if (flags & Qt::WindowCloseButtonHint)
 790                 mwmhints.functions |= MWM_FUNC_CLOSE;
 791         }
 792     } else {
 793         // if type == Qt::SplashScreen
 794         mwmhints.decorations = MWM_DECOR_ALL;
 795     }
 796
 797     if (mwmhints.functions != 0) {
 798         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 799         mwmhints.functions |= MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 800     } else {
 801         mwmhints.functions = MWM_FUNC_ALL;
 802     }
 803
 804     if (!(flags & Qt::FramelessWindowHint)
 805         && flags & Qt::CustomizeWindowHint
 806         && flags & Qt::WindowTitleHint
 807         && !(flags &
 808              (Qt::WindowMinimizeButtonHint
 809               | Qt::WindowMaximizeButtonHint
 810               | Qt::WindowCloseButtonHint)))
 811     {
 812         // a special case - only the titlebar without any button
 813         mwmhints.flags = MWM_HINTS_FUNCTIONS;
 814         mwmhints.functions = MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 815         mwmhints.decorations = 0;
 816     }
 817
 818     setMotifWmHints(connection(), m_window, mwmhints);
 819 }
 820
 821 void QXcbWindow::changeNetWmState(bool set, xcb_atom_t one, xcb_atom_t two)
 822 {
 823     xcb_client_message_event_t event;
 824
 825     event.response_type = XCB_CLIENT_MESSAGE;
 826     event.format = 32;
 827     event.window = m_window;
 828     event.type = atom(QXcbAtom::_NET_WM_STATE);
 829     event.data.data32[0] = set ? 1 : 0;
 830     event.data.data32[1] = one;
 831     event.data.data32[2] = two;
 832     event.data.data32[3] = 0;
 833     event.data.data32[4] = 0;
 834
 835     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));
 836 }
 837
 838 Qt::WindowState QXcbWindow::setWindowState(Qt::WindowState state)
 839 {
 840     if (state == m_windowState)
 841         return state;
 842
 843     // unset old state
 844     switch (m_windowState) {
 845     case Qt::WindowMinimized:
 846         Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 847         break;
 848     case Qt::WindowMaximized:
 849         changeNetWmState(false,
 850                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 851                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 852         break;
 853     case Qt::WindowFullScreen:
 854         changeNetWmState(false, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 855         break;
 856     default:
 857         break;
 858     }
 859
 860     // set new state
 861     switch (state) {
 862     case Qt::WindowMinimized:
 863         {
 864             xcb_client_message_event_t event;
 865
 866             event.response_type = XCB_CLIENT_MESSAGE;
 867             event.format = 32;
 868             event.window = m_window;
 869             event.type = atom(QXcbAtom::WM_CHANGE_STATE);
 870             event.data.data32[0] = XCB_WM_STATE_ICONIC;
 871             event.data.data32[1] = 0;
 872             event.data.data32[2] = 0;
 873             event.data.data32[3] = 0;
 874             event.data.data32[4] = 0;
 875
 876             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));
 877         }
 878         break;
 879     case Qt::WindowMaximized:
 880         changeNetWmState(true,
 881                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 882                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 883         break;
 884     case Qt::WindowFullScreen:
 885         changeNetWmState(true, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 886         break;
 887     case Qt::WindowNoState:
 888         break;
 889     default:
 890         break;
 891     }
 892
 893     connection()->sync();
 894
 895     m_windowState = state;
 896     return m_windowState;
 897 }
 898
 899 void QXcbWindow::setNetWmWindowFlags(Qt::WindowFlags flags)
 900 {
 901     // in order of decreasing priority
 902     QVector<uint> windowTypes;
 903
 904     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 905
 906     switch (type) {
 907     case Qt::Dialog:
 908     case Qt::Sheet:
 909         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_DIALOG));
 910         break;
 911     case Qt::Tool:
 912     case Qt::Drawer:
 913         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_UTILITY));
 914         break;
 915     case Qt::ToolTip:
 916         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_TOOLTIP));
 917         break;
 918     case Qt::SplashScreen:
 919         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_SPLASH));
 920         break;
 921     default:
 922         break;
 923     }
 924
 925     if (flags & Qt::FramelessWindowHint)
 926         windowTypes.append(atom(QXcbAtom::_KDE_NET_WM_WINDOW_TYPE_OVERRIDE));
 927
 928     windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_NORMAL));
 929
 930     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 931                                    atom(QXcbAtom::_NET_WM_WINDOW_TYPE), XCB_ATOM_ATOM, 32,
 932                                    windowTypes.count(), windowTypes.constData()));
 933 }
 934
 935 void QXcbWindow::updateMotifWmHintsBeforeMap()
 936 {
 937     QtMotifWmHints mwmhints = getMotifWmHints(connection(), m_window);
 938
 939     if (window()->windowModality() != Qt::NonModal) {
 940         switch (window()->windowModality()) {
 941         case Qt::WindowModal:
 942             mwmhints.input_mode = MWM_INPUT_PRIMARY_APPLICATION_MODAL;
 943             break;
 944         case Qt::ApplicationModal:
 945         default:
 946             mwmhints.input_mode = MWM_INPUT_FULL_APPLICATION_MODAL;
 947             break;
 948         }
 949         mwmhints.flags |= MWM_HINTS_INPUT_MODE;
 950     } else {
 951         mwmhints.input_mode = MWM_INPUT_MODELESS;
 952         mwmhints.flags &= ~MWM_HINTS_INPUT_MODE;
 953     }
 954
 955     if (window()->minimumSize() == window()->maximumSize()) {
 956         // fixed size, remove the resize handle (since mwm/dtwm
 957         // isn't smart enough to do it itself)
 958         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 959         if (mwmhints.functions == MWM_FUNC_ALL) {
 960             mwmhints.functions = MWM_FUNC_MOVE;
 961         } else {
 962             mwmhints.functions &= ~MWM_FUNC_RESIZE;
 963         }
 964
 965         if (mwmhints.decorations == MWM_DECOR_ALL) {
 966             mwmhints.flags |= MWM_HINTS_DECORATIONS;
 967             mwmhints.decorations = (MWM_DECOR_BORDER
 968                                     | MWM_DECOR_TITLE
 969                                     | MWM_DECOR_MENU);
 970         } else {
 971             mwmhints.decorations &= ~MWM_DECOR_RESIZEH;
 972         }
 973     }
 974
 975     if (window()->windowFlags() & Qt::WindowMinimizeButtonHint) {
 976         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 977         mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 978         mwmhints.functions |= MWM_FUNC_MINIMIZE;
 979     }
 980     if (window()->windowFlags() & Qt::WindowMaximizeButtonHint) {
 981         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 982         mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 983         mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 984     }
 985     if (window()->windowFlags() & Qt::WindowCloseButtonHint)
 986         mwmhints.functions |= MWM_FUNC_CLOSE;
 987
 988     setMotifWmHints(connection(), m_window, mwmhints);
 989 }
 990
 991 void QXcbWindow::updateNetWmStateBeforeMap()
 992 {
 993     NetWmStates states(0);
 994
 995     const Qt::WindowFlags flags = window()->windowFlags();
 996     if (flags & Qt::WindowStaysOnTopHint) {
 997         states |= NetWmStateAbove;
 998         states |= NetWmStateStaysOnTop;
 999     } else if (flags & Qt::WindowStaysOnBottomHint) {
1000         states |= NetWmStateBelow;
1001     }
1002
1003     if (window()->windowState() & Qt::WindowFullScreen)
1004         states |= NetWmStateFullScreen;
1005
1006     if (window()->windowState() & Qt::WindowMaximized) {
1007         states |= NetWmStateMaximizedHorz;
1008         states |= NetWmStateMaximizedVert;
1009     }
1010
1011     if (window()->windowModality() != Qt::NonModal)
1012         states |= NetWmStateModal;
1013
1014     setNetWmStates(states);
1015 }
1016
1017 void QXcbWindow::updateNetWmUserTime(xcb_timestamp_t timestamp)
1018 {
1019     xcb_window_t wid = m_window;
1020
1021     const bool isSupportedByWM = connection()->wmSupport()->isSupportedByWM(atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
1022     if (m_netWmUserTimeWindow || isSupportedByWM) {
1023         if (!m_netWmUserTimeWindow) {
1024             m_netWmUserTimeWindow = xcb_generate_id(xcb_connection());
1025             Q_XCB_CALL(xcb_create_window(xcb_connection(),
1026                                          XCB_COPY_FROM_PARENT,            // depth -- same as root
1027                                          m_netWmUserTimeWindow,                        // window id
1028                                          m_window,                   // parent window id
1029                                          -1, -1, 1, 1,
1030                                          0,                               // border width
1031                                          XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
1032                                          m_visualId,                      // visual
1033                                          0,                               // value mask
1034                                          0));                             // value list
1035             wid = m_netWmUserTimeWindow;
1036             xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW),
1037                                 XCB_ATOM_WINDOW, 32, 1, &m_netWmUserTimeWindow);
1038             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME));
1039         } else if (!isSupportedByWM) {
1040             // WM no longer supports it, then we should remove the
1041             // _NET_WM_USER_TIME_WINDOW atom.
1042             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
1043             xcb_destroy_window(xcb_connection(), m_netWmUserTimeWindow);
1044             m_netWmUserTimeWindow = XCB_NONE;
1045         } else {
1046             wid = m_netWmUserTimeWindow;
1047         }
1048     }
1049     xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, wid, atom(QXcbAtom::_NET_WM_USER_TIME),
1050                         XCB_ATOM_CARDINAL, 32, 1, &timestamp);
1051 }
1052
1053 void QXcbWindow::setTransparentForMouseEvents(bool transparent)
1054 {
1055     if (transparent == m_transparent)
1056         return;
1057
1058     xcb_rectangle_t rectangle;
1059
1060     xcb_rectangle_t *rect = 0;
1061     int nrect = 0;
1062
1063     if (!transparent) {
1064         rectangle.x = 0;
1065         rectangle.y = 0;
1066         rectangle.width = geometry().width();
1067         rectangle.height = geometry().height();
1068         rect = &rectangle;
1069         nrect = 1;
1070     }
1071
1072     xcb_xfixes_region_t region = xcb_generate_id(xcb_connection());
1073     xcb_xfixes_create_region(xcb_connection(), region, nrect, rect);
1074     xcb_xfixes_set_window_shape_region_checked(xcb_connection(), m_window, XCB_SHAPE_SK_INPUT, 0, 0, region);
1075     xcb_xfixes_destroy_region(xcb_connection(), region);
1076
1077     m_transparent = transparent;
1078 }
1079
1080 void QXcbWindow::updateDoesNotAcceptFocus(bool doesNotAcceptFocus)
1081 {
1082     xcb_get_property_cookie_t cookie = xcb_get_wm_hints_unchecked(xcb_connection(), m_window);
1083
1084     xcb_wm_hints_t hints;
1085     if (!xcb_get_wm_hints_reply(xcb_connection(), cookie, &hints, NULL)) {
1086         return;
1087     }
1088
1089     xcb_wm_hints_set_input(&hints, !doesNotAcceptFocus);
1090     xcb_set_wm_hints(xcb_connection(), m_window, &hints);
1091 }
1092
1093 WId QXcbWindow::winId() const
1094 {
1095     return m_window;
1096 }
1097
1098 void QXcbWindow::setParent(const QPlatformWindow *parent)
1099 {
1100     // re-create for compatibility
1101     create();
1102
1103     QPoint topLeft = geometry().topLeft();
1104
1105     xcb_window_t xcb_parent_id = parent ? static_cast<const QXcbWindow *>(parent)->xcb_window() : m_screen->root();
1106     Q_XCB_CALL(xcb_reparent_window(xcb_connection(), xcb_window(), xcb_parent_id, topLeft.x(), topLeft.y()));
1107 }
1108
1109 void QXcbWindow::setWindowTitle(const QString &title)
1110 {
1111     QByteArray ba = title.toUtf8();
1112     Q_XCB_CALL(xcb_change_property(xcb_connection(),
1113                                    XCB_PROP_MODE_REPLACE,
1114                                    m_window,
1115                                    atom(QXcbAtom::_NET_WM_NAME),
1116                                    atom(QXcbAtom::UTF8_STRING),
1117                                    8,
1118                                    ba.length(),
1119                                    ba.constData()));
1120 }
1121
1122 void QXcbWindow::raise()
1123 {
1124     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1125     const quint32 values[] = { XCB_STACK_MODE_ABOVE };
1126     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1127 }
1128
1129 void QXcbWindow::lower()
1130 {
1131     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1132     const quint32 values[] = { XCB_STACK_MODE_BELOW };
1133     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1134 }
1135
1136 // Adapt the geometry to match the WM expection with regards
1137 // to gravity.
1138 QRect QXcbWindow::windowToWmGeometry(QRect r) const
1139 {
1140     if (m_dirtyFrameMargins || m_frameMargins.isNull())
1141         return r;
1142     const bool frameInclusive = positionIncludesFrame(window());
1143     // XCB_GRAVITY_STATIC requires the inner geometry, whereas
1144     // XCB_GRAVITY_NORTH_WEST requires the frame geometry
1145     if (frameInclusive && m_gravity == XCB_GRAVITY_STATIC) {
1146         r.translate(m_frameMargins.left(), m_frameMargins.top());
1147     } else if (!frameInclusive && m_gravity == XCB_GRAVITY_NORTH_WEST) {
1148         r.translate(-m_frameMargins.left(), -m_frameMargins.top());
1149     }
1150     return r;
1151 }
1152
1153 void QXcbWindow::propagateSizeHints()
1154 {
1155     // update WM_NORMAL_HINTS
1156     xcb_size_hints_t hints;
1157     memset(&hints, 0, sizeof(hints));
1158
1159     const QRect rect = windowToWmGeometry(geometry());
1160
1161     QWindow *win = window();
1162
1163     xcb_size_hints_set_position(&hints, true, rect.x(), rect.y());
1164     xcb_size_hints_set_size(&hints, true, rect.width(), rect.height());
1165     xcb_size_hints_set_win_gravity(&hints, m_gravity);
1166
1167     QSize minimumSize = win->minimumSize();
1168     QSize maximumSize = win->maximumSize();
1169     QSize baseSize = win->baseSize();
1170     QSize sizeIncrement = win->sizeIncrement();
1171
1172     if (minimumSize.width() > 0 || minimumSize.height() > 0)
1173         xcb_size_hints_set_min_size(&hints, minimumSize.width(), minimumSize.height());
1174
1175     if (maximumSize.width() < QWINDOWSIZE_MAX || maximumSize.height() < QWINDOWSIZE_MAX)
1176         xcb_size_hints_set_max_size(&hints,
1177                                     qMin(XCOORD_MAX, maximumSize.width()),
1178                                     qMin(XCOORD_MAX, maximumSize.height()));
1179
1180     if (sizeIncrement.width() > 0 || sizeIncrement.height() > 0) {
1181         xcb_size_hints_set_base_size(&hints, baseSize.width(), baseSize.height());
1182         xcb_size_hints_set_resize_inc(&hints, sizeIncrement.width(), sizeIncrement.height());
1183     }
1184
1185     xcb_set_wm_normal_hints(xcb_connection(), m_window, &hints);
1186 }
1187
1188 void QXcbWindow::requestActivateWindow()
1189 {
1190     if (!m_mapped) {
1191         m_deferredActivation = true;
1192         return;
1193     }
1194     m_deferredActivation = false;
1195
1196     updateNetWmUserTime(connection()->time());
1197
1198     if (window()->isTopLevel()
1199         && connection()->wmSupport()->isSupportedByWM(atom(QXcbAtom::_NET_ACTIVE_WINDOW))) {
1200         xcb_client_message_event_t event;
1201
1202         event.response_type = XCB_CLIENT_MESSAGE;
1203         event.format = 32;
1204         event.window = m_window;
1205         event.type = atom(QXcbAtom::_NET_ACTIVE_WINDOW);
1206         event.data.data32[0] = 1;
1207         event.data.data32[1] = connection()->time();
1208         QWindow *focusWindow = QGuiApplication::focusWindow();
1209         event.data.data32[2] = focusWindow ? focusWindow->winId() : XCB_NONE;
1210         event.data.data32[3] = 0;
1211         event.data.data32[4] = 0;
1212
1213         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));
1214     } else {
1215         Q_XCB_CALL(xcb_set_input_focus(xcb_connection(), XCB_INPUT_FOCUS_PARENT, m_window, connection()->time()));
1216     }
1217
1218     connection()->sync();
1219 }
1220
1221 #if XCB_USE_MAEMO_WINDOW_PROPERTIES
1222 void QXcbWindow::handleContentOrientationChange(Qt::ScreenOrientation orientation)
1223 {
1224     int angle = 0;
1225     switch (orientation) {
1226         case Qt::PortraitOrientation: angle = 270; break;
1227         case Qt::LandscapeOrientation: angle = 0; break;
1228         case Qt::InvertedPortraitOrientation: angle = 90; break;
1229         case Qt::InvertedLandscapeOrientation: angle = 180; break;
1230         case Qt::PrimaryOrientation: break;
1231     }
1232     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
1233                                    atom(QXcbAtom::MeegoTouchOrientationAngle), XCB_ATOM_CARDINAL, 32,
1234                                    1, &angle));
1235 }
1236 #endif
1237
1238 QSurfaceFormat QXcbWindow::format() const
1239 {
1240     // ### return actual format
1241     return m_format;
1242 }
1243
1244 #if defined(XCB_USE_EGL)
1245 QXcbEGLSurface *QXcbWindow::eglSurface() const
1246 {
1247     if (!m_eglSurface) {
1248         EGLDisplay display = connection()->egl_display();
1249         EGLConfig config = q_configFromGLFormat(display, window()->requestedFormat(), true);
1250         EGLSurface surface = eglCreateWindowSurface(display, config, (EGLNativeWindowType)m_window, 0);
1251
1252         m_eglSurface = new QXcbEGLSurface(display, surface);
1253     }
1254
1255     return m_eglSurface;
1256 }
1257 #endif
1258
1259 void QXcbWindow::handleExposeEvent(const xcb_expose_event_t *event)
1260 {
1261     QRect rect(event->x, event->y, event->width, event->height);
1262
1263     if (m_exposeRegion.isEmpty())
1264         m_exposeRegion = rect;
1265     else
1266         m_exposeRegion |= rect;
1267
1268     // if count is non-zero there are more expose events pending
1269     if (event->count == 0) {
1270         QWindowSystemInterface::handleExposeEvent(window(), m_exposeRegion);
1271         m_exposeRegion = QRegion();
1272     }
1273 }
1274
1275 void QXcbWindow::handleClientMessageEvent(const xcb_client_message_event_t *event)
1276 {
1277     if (event->format != 32)
1278         return;
1279
1280     if (event->type == atom(QXcbAtom::WM_PROTOCOLS)) {
1281         if (event->data.data32[0] == atom(QXcbAtom::WM_DELETE_WINDOW)) {
1282             QWindowSystemInterface::handleCloseEvent(window());
1283         } else if (event->data.data32[0] == atom(QXcbAtom::WM_TAKE_FOCUS)) {
1284             connection()->setTime(event->data.data32[1]);
1285         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_PING)) {
1286             xcb_client_message_event_t reply = *event;
1287
1288             reply.response_type = XCB_CLIENT_MESSAGE;
1289             reply.window = m_screen->root();
1290
1291             xcb_send_event(xcb_connection(), 0, m_screen->root(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&reply);
1292             xcb_flush(xcb_connection());
1293         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_SYNC_REQUEST)) {
1294             connection()->setTime(event->data.data32[1]);
1295             m_syncValue.lo = event->data.data32[2];
1296             m_syncValue.hi = event->data.data32[3];
1297         } else {
1298             qWarning() << "QXcbWindow: Unhandled WM_PROTOCOLS message:" << connection()->atomName(event->data.data32[0]);
1299         }
1300     } else if (event->type == atom(QXcbAtom::XdndEnter)) {
1301         connection()->drag()->handleEnter(window(), event);
1302     } else if (event->type == atom(QXcbAtom::XdndPosition)) {
1303         connection()->drag()->handlePosition(window(), event);
1304     } else if (event->type == atom(QXcbAtom::XdndLeave)) {
1305         connection()->drag()->handleLeave(window(), event);
1306     } else if (event->type == atom(QXcbAtom::XdndDrop)) {
1307         connection()->drag()->handleDrop(window(), event);
1308     } else if (event->type == atom(QXcbAtom::_XEMBED)) { // QSystemTrayIcon
1309     } else {
1310         qWarning() << "QXcbWindow: Unhandled client message:" << connection()->atomName(event->type);
1311     }
1312 }
1313
1314 void QXcbWindow::handleConfigureNotifyEvent(const xcb_configure_notify_event_t *event)
1315 {
1316     bool fromSendEvent = (event->response_type & 0x80);
1317     QPoint pos(event->x, event->y);
1318     if (!parent() && !fromSendEvent) {
1319         // Do not trust the position, query it instead.
1320         xcb_translate_coordinates_cookie_t cookie = xcb_translate_coordinates(xcb_connection(), xcb_window(),
1321                                                                               m_screen->root(), 0, 0);
1322         xcb_translate_coordinates_reply_t *reply = xcb_translate_coordinates_reply(xcb_connection(), cookie, NULL);
1323         if (reply) {
1324             pos.setX(reply->dst_x);
1325             pos.setY(reply->dst_y);
1326             free(reply);
1327         }
1328     }
1329
1330     QRect rect(pos, QSize(event->width, event->height));
1331
1332     QPlatformWindow::setGeometry(rect);
1333     QWindowSystemInterface::handleGeometryChange(window(), rect);
1334
1335     m_configureNotifyPending = false;
1336
1337     if (m_deferredExpose) {
1338         m_deferredExpose = false;
1339         QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
1340     }
1341
1342     m_dirtyFrameMargins = true;
1343
1344 #if XCB_USE_DRI2
1345     if (m_context)
1346         static_cast<QDri2Context *>(m_context)->resize(rect.size());
1347 #endif
1348 }
1349
1350 bool QXcbWindow::isExposed() const
1351 {
1352     return m_mapped;
1353 }
1354
1355 void QXcbWindow::handleMapNotifyEvent(const xcb_map_notify_event_t *event)
1356 {
1357     if (event->window == m_window) {
1358         m_mapped = true;
1359         if (m_deferredActivation)
1360             requestActivateWindow();
1361         if (m_configureNotifyPending)
1362             m_deferredExpose = true;
1363         else
1364             QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
1365     }
1366 }
1367
1368 void QXcbWindow::handleUnmapNotifyEvent(const xcb_unmap_notify_event_t *event)
1369 {
1370     if (event->window == m_window) {
1371         m_mapped = false;
1372         QWindowSystemInterface::handleExposeEvent(window(), QRegion());
1373     }
1374 }
1375
1376 static Qt::MouseButtons translateMouseButtons(int s)
1377 {
1378     Qt::MouseButtons ret = 0;
1379     if (s & XCB_BUTTON_MASK_1)
1380         ret |= Qt::LeftButton;
1381     if (s & XCB_BUTTON_MASK_2)
1382         ret |= Qt::MidButton;
1383     if (s & XCB_BUTTON_MASK_3)
1384         ret |= Qt::RightButton;
1385     return ret;
1386 }
1387
1388 static Qt::MouseButton translateMouseButton(xcb_button_t s)
1389 {
1390     switch (s) {
1391     case 1: return Qt::LeftButton;
1392     case 2: return Qt::MidButton;
1393     case 3: return Qt::RightButton;
1394     // Button values 4-7 were already handled as Wheel events, and won't occur here.
1395     case 8: return Qt::BackButton;      // Also known as Qt::ExtraButton1
1396     case 9: return Qt::ForwardButton;   // Also known as Qt::ExtraButton2
1397     case 10: return Qt::ExtraButton3;
1398     case 11: return Qt::ExtraButton4;
1399     case 12: return Qt::ExtraButton5;
1400     case 13: return Qt::ExtraButton6;
1401     case 14: return Qt::ExtraButton7;
1402     case 15: return Qt::ExtraButton8;
1403     case 16: return Qt::ExtraButton9;
1404     case 17: return Qt::ExtraButton10;
1405     case 18: return Qt::ExtraButton11;
1406     case 19: return Qt::ExtraButton12;
1407     case 20: return Qt::ExtraButton13;
1408     case 21: return Qt::ExtraButton14;
1409     case 22: return Qt::ExtraButton15;
1410     case 23: return Qt::ExtraButton16;
1411     case 24: return Qt::ExtraButton17;
1412     case 25: return Qt::ExtraButton18;
1413     case 26: return Qt::ExtraButton19;
1414     case 27: return Qt::ExtraButton20;
1415     case 28: return Qt::ExtraButton21;
1416     case 29: return Qt::ExtraButton22;
1417     case 30: return Qt::ExtraButton23;
1418     case 31: return Qt::ExtraButton24;
1419     default: return Qt::NoButton;
1420     }
1421 }
1422
1423 void QXcbWindow::handleButtonPressEvent(const xcb_button_press_event_t *event)
1424 {
1425     updateNetWmUserTime(event->time);
1426
1427     QPoint local(event->event_x, event->event_y);
1428     QPoint global(event->root_x, event->root_y);
1429
1430     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1431
1432     if (event->detail >= 4 && event->detail <= 7) {
1433         // Logic borrowed from qapplication_x11.cpp
1434         int delta = 120 * ((event->detail == 4 || event->detail == 6) ? 1 : -1);
1435         bool hor = (((event->detail == 4 || event->detail == 5)
1436                      && (modifiers & Qt::AltModifier))
1437                     || (event->detail == 6 || event->detail == 7));
1438
1439         QWindowSystemInterface::handleWheelEvent(window(), event->time,
1440                                                  local, global, delta, hor ? Qt::Horizontal : Qt::Vertical, modifiers);
1441         return;
1442     }
1443
1444     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1445 }
1446
1447 void QXcbWindow::handleButtonReleaseEvent(const xcb_button_release_event_t *event)
1448 {
1449     QPoint local(event->event_x, event->event_y);
1450     QPoint global(event->root_x, event->root_y);
1451     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1452
1453     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1454 }
1455
1456 void QXcbWindow::handleMotionNotifyEvent(const xcb_motion_notify_event_t *event)
1457 {
1458     QPoint local(event->event_x, event->event_y);
1459     QPoint global(event->root_x, event->root_y);
1460     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1461
1462     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1463 }
1464
1465 void QXcbWindow::handleMouseEvent(xcb_button_t detail, uint16_t state, xcb_timestamp_t time, const QPoint &local, const QPoint &global, Qt::KeyboardModifiers modifiers)
1466 {
1467     connection()->setTime(time);
1468
1469     Qt::MouseButtons buttons = translateMouseButtons(state);
1470     Qt::MouseButton button = translateMouseButton(detail);
1471
1472     buttons ^= button; // X event uses state *before*, Qt uses state *after*
1473
1474     QWindowSystemInterface::handleMouseEvent(window(), time, local, global, buttons, modifiers);
1475 }
1476
1477 void QXcbWindow::handleEnterNotifyEvent(const xcb_enter_notify_event_t *event)
1478 {
1479     connection()->setTime(event->time);
1480
1481     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1482         || event->detail == XCB_NOTIFY_DETAIL_VIRTUAL
1483         || event->detail == XCB_NOTIFY_DETAIL_NONLINEAR_VIRTUAL)
1484     {
1485         return;
1486     }
1487
1488     QWindowSystemInterface::handleEnterEvent(window());
1489 }
1490
1491 void QXcbWindow::handleLeaveNotifyEvent(const xcb_leave_notify_event_t *event)
1492 {
1493     connection()->setTime(event->time);
1494
1495     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1496         || event->detail == XCB_NOTIFY_DETAIL_INFERIOR)
1497     {
1498         return;
1499     }
1500
1501     QWindowSystemInterface::handleLeaveEvent(window());
1502 }
1503
1504 void QXcbWindow::handlePropertyNotifyEvent(const xcb_property_notify_event_t *event)
1505 {
1506     connection()->setTime(event->time);
1507
1508     const bool propertyDeleted = event->state == XCB_PROPERTY_DELETE;
1509     const xcb_atom_t netWmStateAtom = atom(QXcbAtom::_NET_WM_STATE);
1510     const xcb_atom_t wmStateAtom = atom(QXcbAtom::WM_STATE);
1511
1512     if (event->atom == netWmStateAtom || event->atom == wmStateAtom) {
1513         if (propertyDeleted)
1514             return;
1515
1516         Qt::WindowState newState = Qt::WindowNoState;
1517         if (event->atom == wmStateAtom) { // WM_STATE: Quick check for 'Minimize'.
1518             const xcb_get_property_cookie_t get_cookie =
1519                 xcb_get_property(xcb_connection(), 0, m_window, wmStateAtom,
1520                                  XCB_ATOM_ANY, 0, 1024);
1521
1522             xcb_get_property_reply_t *reply =
1523                 xcb_get_property_reply(xcb_connection(), get_cookie, NULL);
1524
1525             if (reply && reply->format == 32 && reply->type == wmStateAtom) {
1526                 const long *data = (const long *)xcb_get_property_value(reply);
1527                 if (reply->length != 0 && XCB_WM_STATE_ICONIC == data[0])
1528                     newState = Qt::WindowMinimized;
1529                 free(reply);
1530             }
1531         } // WM_STATE: Quick check for 'Minimize'.
1532         if (newState != Qt::WindowMinimized) { // Something else changed, get _NET_WM_STATE.
1533             const NetWmStates states = netWmStates();
1534             if ((states & NetWmStateMaximizedHorz) && (states & NetWmStateMaximizedVert))
1535                 newState = Qt::WindowMaximized;
1536             else if (states & NetWmStateFullScreen)
1537                 newState = Qt::WindowFullScreen;
1538         }
1539         // Send Window state, compress events in case other flags (modality, etc) are changed.
1540         if (m_lastWindowStateEvent != newState) {
1541             QWindowSystemInterface::handleWindowStateChanged(window(), newState);
1542             m_lastWindowStateEvent = newState;
1543         }
1544     }
1545 }
1546
1547 void QXcbWindow::handleFocusInEvent(const xcb_focus_in_event_t *)
1548 {
1549     QWindowSystemInterface::handleWindowActivated(window());
1550 }
1551
1552 static bool focusInPeeker(xcb_generic_event_t *event)
1553 {
1554     if (!event) {
1555         // FocusIn event is not in the queue, proceed with FocusOut normally.
1556         QWindowSystemInterface::handleWindowActivated(0);
1557         return true;
1558     }
1559     uint response_type = event->response_type & ~0x80;
1560     return response_type == XCB_FOCUS_IN;
1561 }
1562
1563 void QXcbWindow::handleFocusOutEvent(const xcb_focus_out_event_t *)
1564 {
1565     // Do not set the active window to 0 if there is a FocusIn coming.
1566     // There is however no equivalent for XPutBackEvent so register a
1567     // callback for QXcbConnection instead.
1568     connection()->addPeekFunc(focusInPeeker);
1569 }
1570
1571 void QXcbWindow::updateSyncRequestCounter()
1572 {
1573     if (m_screen->syncRequestSupported() && (m_syncValue.lo != 0 || m_syncValue.hi != 0)) {
1574         Q_XCB_CALL(xcb_sync_set_counter(xcb_connection(), m_syncCounter, m_syncValue));
1575         xcb_flush(xcb_connection());
1576         connection()->sync();
1577
1578         m_syncValue.lo = 0;
1579         m_syncValue.hi = 0;
1580     }
1581 }
1582
1583 bool QXcbWindow::setKeyboardGrabEnabled(bool grab)
1584 {
1585     if (!grab) {
1586         xcb_ungrab_keyboard(xcb_connection(), XCB_TIME_CURRENT_TIME);
1587         return true;
1588     }
1589     xcb_grab_keyboard_cookie_t cookie = xcb_grab_keyboard(xcb_connection(), false,
1590                                                           m_window, XCB_TIME_CURRENT_TIME,
1591                                                           XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
1592     xcb_grab_keyboard_reply_t *reply = xcb_grab_keyboard_reply(xcb_connection(), cookie, NULL);
1593     bool result = !(!reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1594     free(reply);
1595     return result;
1596 }
1597
1598 bool QXcbWindow::setMouseGrabEnabled(bool grab)
1599 {
1600     if (!grab) {
1601         xcb_ungrab_pointer(xcb_connection(), XCB_TIME_CURRENT_TIME);
1602         return true;
1603     }
1604     xcb_grab_pointer_cookie_t cookie = xcb_grab_pointer(xcb_connection(), false, m_window,
1605                                                         (XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE
1606                                                          | XCB_EVENT_MASK_BUTTON_MOTION | XCB_EVENT_MASK_ENTER_WINDOW
1607                                                          | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_POINTER_MOTION),
1608                                                         XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC,
1609                                                         XCB_WINDOW_NONE, XCB_CURSOR_NONE,
1610                                                         XCB_TIME_CURRENT_TIME);
1611     xcb_grab_pointer_reply_t *reply = xcb_grab_pointer_reply(xcb_connection(), cookie, NULL);
1612     bool result = !(!reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1613     free(reply);
1614     return result;
1615 }
1616
1617 void QXcbWindow::setCursor(xcb_cursor_t cursor)
1618 {
1619     xcb_change_window_attributes(xcb_connection(), m_window, XCB_CW_CURSOR, &cursor);
1620     xcb_flush(xcb_connection());
1621 }
1622
1623 QT_END_NAMESPACE