src/plugins/platforms/xcb/qxcbwindow.cpp

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  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
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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     , m_dirtyFrameMargins(false)
 156 #if defined(XCB_USE_EGL)
 157     , m_eglSurface(0)
 158 #endif
 159     , m_lastWindowStateEvent(-1)
 160 {
 161     m_screen = static_cast<QXcbScreen *>(window->screen()->handle());
 162
 163     setConnection(m_screen->connection());
 164
 165     create();
 166 }
 167
 168 void QXcbWindow::create()
 169 {
 170     destroy();
 171
 172     m_deferredExpose = false;
 173     m_configureNotifyPending = true;
 174     m_windowState = Qt::WindowNoState;
 175
 176     Qt::WindowType type = window()->windowType();
 177
 178     if (type == Qt::Desktop) {
 179         m_window = m_screen->root();
 180         m_depth = m_screen->screen()->root_depth;
 181         m_imageFormat = imageFormatForDepth(m_depth);
 182         connection()->addWindow(m_window, this);
 183         return;
 184     }
 185
 186     // Determine gravity from initial position. Do not change
 187     // later as it will cause the window to move uncontrollably.
 188     m_gravity = positionIncludesFrame(window()) ?
 189                 XCB_GRAVITY_NORTH_WEST : XCB_GRAVITY_STATIC;
 190
 191     const quint32 mask = XCB_CW_BACK_PIXMAP | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_SAVE_UNDER | XCB_CW_EVENT_MASK;
 192     const quint32 values[] = {
 193         // XCB_CW_BACK_PIXMAP
 194         XCB_NONE,
 195         // XCB_CW_OVERRIDE_REDIRECT
 196         type == Qt::Popup || type == Qt::ToolTip,
 197         // XCB_CW_SAVE_UNDER
 198         type == Qt::Popup || type == Qt::Tool || type == Qt::SplashScreen || type == Qt::ToolTip || type == Qt::Drawer,
 199         // XCB_CW_EVENT_MASK
 200         XCB_EVENT_MASK_EXPOSURE
 201         | XCB_EVENT_MASK_STRUCTURE_NOTIFY
 202         | XCB_EVENT_MASK_KEY_PRESS
 203         | XCB_EVENT_MASK_KEY_RELEASE
 204         | XCB_EVENT_MASK_BUTTON_PRESS
 205         | XCB_EVENT_MASK_BUTTON_RELEASE
 206         | XCB_EVENT_MASK_BUTTON_MOTION
 207         | XCB_EVENT_MASK_ENTER_WINDOW
 208         | XCB_EVENT_MASK_LEAVE_WINDOW
 209         | XCB_EVENT_MASK_POINTER_MOTION
 210         | XCB_EVENT_MASK_PROPERTY_CHANGE
 211         | XCB_EVENT_MASK_FOCUS_CHANGE
 212     };
 213
 214     // Parameters to XCreateWindow() are frame corner + inner size.
 215     // This fits in case position policy is frame inclusive. There is
 216     // currently no way to implement it for frame-exclusive geometries.
 217     QRect rect = window()->geometry();
 218     QPlatformWindow::setGeometry(rect);
 219
 220     rect.setWidth(qBound(1, rect.width(), XCOORD_MAX));
 221     rect.setHeight(qBound(1, rect.height(), XCOORD_MAX));
 222
 223     xcb_window_t xcb_parent_id = m_screen->root();
 224     if (parent())
 225         xcb_parent_id = static_cast<QXcbWindow *>(parent())->xcb_window();
 226
 227     m_format = window()->requestedFormat();
 228
 229 #if (defined(XCB_USE_GLX) || defined(XCB_USE_EGL)) && defined(XCB_USE_XLIB)
 230     if (QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::OpenGL)
 231         || m_format.hasAlpha())
 232     {
 233 #if defined(XCB_USE_GLX)
 234         XVisualInfo *visualInfo = qglx_findVisualInfo(DISPLAY_FROM_XCB(m_screen), m_screen->screenNumber(), &m_format);
 235         if (!visualInfo)
 236             qFatal("Could not initialize GLX");
 237 #elif defined(XCB_USE_EGL)
 238         EGLDisplay eglDisplay = connection()->egl_display();
 239         EGLConfig eglConfig = q_configFromGLFormat(eglDisplay, m_format, true);
 240         m_format = q_glFormatFromConfig(eglDisplay, eglConfig);
 241
 242         VisualID id = QXlibEglIntegration::getCompatibleVisualId(DISPLAY_FROM_XCB(this), eglDisplay, eglConfig);
 243
 244         XVisualInfo visualInfoTemplate;
 245         memset(&visualInfoTemplate, 0, sizeof(XVisualInfo));
 246         visualInfoTemplate.visualid = id;
 247
 248         XVisualInfo *visualInfo;
 249         int matchingCount = 0;
 250         visualInfo = XGetVisualInfo(DISPLAY_FROM_XCB(this), VisualIDMask, &visualInfoTemplate, &matchingCount);
 251         if (!visualInfo)
 252             qFatal("Could not initialize EGL");
 253 #endif //XCB_USE_GLX
 254         m_depth = visualInfo->depth;
 255         m_imageFormat = imageFormatForDepth(m_depth);
 256         Colormap cmap = XCreateColormap(DISPLAY_FROM_XCB(this), xcb_parent_id, visualInfo->visual, AllocNone);
 257
 258         XSetWindowAttributes a;
 259         a.background_pixel = WhitePixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 260         a.border_pixel = BlackPixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 261         a.colormap = cmap;
 262
 263         m_visualId = visualInfo->visualid;
 264
 265         m_window = XCreateWindow(DISPLAY_FROM_XCB(this), xcb_parent_id, rect.x(), rect.y(), rect.width(), rect.height(),
 266                                   0, visualInfo->depth, InputOutput, visualInfo->visual,
 267                                   CWBackPixel|CWBorderPixel|CWColormap, &a);
 268
 269         XFree(visualInfo);
 270     } else
 271 #endif //defined(XCB_USE_GLX) || defined(XCB_USE_EGL)
 272     {
 273         m_window = xcb_generate_id(xcb_connection());
 274         m_depth = m_screen->screen()->root_depth;
 275         m_imageFormat = imageFormatForDepth(m_depth);
 276         m_visualId = m_screen->screen()->root_visual;
 277
 278         Q_XCB_CALL(xcb_create_window(xcb_connection(),
 279                                      XCB_COPY_FROM_PARENT,            // depth -- same as root
 280                                      m_window,                        // window id
 281                                      xcb_parent_id,                   // parent window id
 282                                      rect.x(),
 283                                      rect.y(),
 284                                      rect.width(),
 285                                      rect.height(),
 286                                      0,                               // border width
 287                                      XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
 288                                      m_visualId,                      // visual
 289                                      0,                               // value mask
 290                                      0));                             // value list
 291     }
 292
 293     connection()->addWindow(m_window, this);
 294
 295     Q_XCB_CALL(xcb_change_window_attributes(xcb_connection(), m_window, mask, values));
 296
 297     propagateSizeHints();
 298
 299     xcb_atom_t properties[4];
 300     int propertyCount = 0;
 301     properties[propertyCount++] = atom(QXcbAtom::WM_DELETE_WINDOW);
 302     properties[propertyCount++] = atom(QXcbAtom::WM_TAKE_FOCUS);
 303     properties[propertyCount++] = atom(QXcbAtom::_NET_WM_PING);
 304
 305     if (m_screen->syncRequestSupported())
 306         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_SYNC_REQUEST);
 307
 308     if (window()->windowFlags() & Qt::WindowContextHelpButtonHint)
 309         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_CONTEXT_HELP);
 310
 311     Q_XCB_CALL(xcb_change_property(xcb_connection(),
 312                                    XCB_PROP_MODE_REPLACE,
 313                                    m_window,
 314                                    atom(QXcbAtom::WM_PROTOCOLS),
 315                                    XCB_ATOM_ATOM,
 316                                    32,
 317                                    propertyCount,
 318                                    properties));
 319     m_syncValue.hi = 0;
 320     m_syncValue.lo = 0;
 321
 322     if (m_screen->syncRequestSupported()) {
 323         m_syncCounter = xcb_generate_id(xcb_connection());
 324         Q_XCB_CALL(xcb_sync_create_counter(xcb_connection(), m_syncCounter, m_syncValue));
 325
 326         Q_XCB_CALL(xcb_change_property(xcb_connection(),
 327                                        XCB_PROP_MODE_REPLACE,
 328                                        m_window,
 329                                        atom(QXcbAtom::_NET_WM_SYNC_REQUEST_COUNTER),
 330                                        XCB_ATOM_CARDINAL,
 331                                        32,
 332                                        1,
 333                                        &m_syncCounter));
 334     }
 335
 336     // set the PID to let the WM kill the application if unresponsive
 337     long pid = getpid();
 338     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 339                                    atom(QXcbAtom::_NET_WM_PID), XCB_ATOM_CARDINAL, 32,
 340                                    1, &pid));
 341
 342     xcb_wm_hints_t hints;
 343     memset(&hints, 0, sizeof(hints));
 344     xcb_wm_hints_set_normal(&hints);
 345
 346     xcb_wm_hints_set_input(&hints, !(window()->windowFlags() & Qt::WindowDoesNotAcceptFocus));
 347
 348     xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 349
 350     xcb_window_t leader = m_screen->clientLeader();
 351     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 352                                    atom(QXcbAtom::WM_CLIENT_LEADER), XCB_ATOM_WINDOW, 32,
 353                                    1, &leader));
 354
 355 #ifdef XCB_USE_XINPUT2_MAEMO
 356     if (connection()->isUsingXInput2()) {
 357         XIEventMask xieventmask;
 358         uchar bitmask[2] = { 0, 0 };
 359
 360         xieventmask.deviceid = XIAllMasterDevices;
 361         xieventmask.mask = bitmask;
 362         xieventmask.mask_len = sizeof(bitmask);
 363
 364         XISetMask(bitmask, XI_ButtonPress);
 365         XISetMask(bitmask, XI_ButtonRelease);
 366         XISetMask(bitmask, XI_Motion);
 367
 368         XISelectEvents(DISPLAY_FROM_XCB(this), m_window, &xieventmask, 1);
 369     }
 370 #endif
 371
 372     setWindowFlags(window()->windowFlags());
 373     setWindowTitle(window()->windowTitle());
 374     setWindowState(window()->windowState());
 375
 376     if (window()->windowFlags() & Qt::WindowTransparentForInput)
 377         setTransparentForMouseEvents(true);
 378
 379 #ifndef QT_NO_DRAGANDDROP
 380     connection()->drag()->dndEnable(this, true);
 381 #endif
 382 }
 383
 384 QXcbWindow::~QXcbWindow()
 385 {
 386     destroy();
 387 }
 388
 389 void QXcbWindow::destroy()
 390 {
 391     if (m_syncCounter && m_screen->syncRequestSupported())
 392         Q_XCB_CALL(xcb_sync_destroy_counter(xcb_connection(), m_syncCounter));
 393     if (m_window) {
 394         if (m_netWmUserTimeWindow) {
 395             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
 396             // Some window managers, like metacity, do XSelectInput on the _NET_WM_USER_TIME_WINDOW window,
 397             // without trapping BadWindow (which crashes when the user time window is destroyed).
 398             connection()->sync();
 399             xcb_destroy_window(xcb_connection(), m_netWmUserTimeWindow);
 400             m_netWmUserTimeWindow = XCB_NONE;
 401         }
 402         connection()->removeWindow(m_window);
 403         Q_XCB_CALL(xcb_destroy_window(xcb_connection(), m_window));
 404     }
 405     m_mapped = false;
 406
 407 #if defined(XCB_USE_EGL)
 408     delete m_eglSurface;
 409     m_eglSurface = 0;
 410 #endif
 411 }
 412
 413 void QXcbWindow::setGeometry(const QRect &rect)
 414 {
 415     QPlatformWindow::setGeometry(rect);
 416
 417     propagateSizeHints();
 418     const QRect wmGeometry = windowToWmGeometry(rect);
 419
 420     const quint32 mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
 421     const qint32 values[] = {
 422         qBound<qint32>(-XCOORD_MAX, wmGeometry.x(),      XCOORD_MAX),
 423         qBound<qint32>(-XCOORD_MAX, wmGeometry.y(),      XCOORD_MAX),
 424         qBound<qint32>(1,           wmGeometry.width(),  XCOORD_MAX),
 425         qBound<qint32>(1,           wmGeometry.height(), XCOORD_MAX),
 426     };
 427
 428     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, reinterpret_cast<const quint32*>(values)));
 429
 430     xcb_flush(xcb_connection());
 431 }
 432
 433 QMargins QXcbWindow::frameMargins() const
 434 {
 435     if (m_dirtyFrameMargins) {
 436         xcb_window_t window = m_window;
 437         xcb_window_t parent = m_window;
 438
 439         bool foundRoot = false;
 440
 441         const QVector<xcb_window_t> &virtualRoots =
 442             connection()->wmSupport()->virtualRoots();
 443
 444         while (!foundRoot) {
 445             xcb_query_tree_cookie_t cookie = xcb_query_tree_unchecked(xcb_connection(), parent);
 446
 447             xcb_query_tree_reply_t *reply = xcb_query_tree_reply(xcb_connection(), cookie, NULL);
 448             if (reply) {
 449                 if (reply->root == reply->parent || virtualRoots.indexOf(reply->parent) != -1) {
 450                     foundRoot = true;
 451                 } else {
 452                     window = parent;
 453                     parent = reply->parent;
 454                 }
 455
 456                 free(reply);
 457             } else {
 458                 m_dirtyFrameMargins = false;
 459                 m_frameMargins = QMargins();
 460                 return m_frameMargins;
 461             }
 462         }
 463
 464         QPoint offset;
 465
 466         xcb_translate_coordinates_reply_t *reply =
 467             xcb_translate_coordinates_reply(
 468                 xcb_connection(),
 469                 xcb_translate_coordinates(xcb_connection(), window, parent, 0, 0),
 470                 NULL);
 471
 472         if (reply) {
 473             offset = QPoint(reply->dst_x, reply->dst_y);
 474             free(reply);
 475         }
 476
 477         xcb_get_geometry_reply_t *geom =
 478             xcb_get_geometry_reply(
 479                 xcb_connection(),
 480                 xcb_get_geometry(xcb_connection(), parent),
 481                 NULL);
 482
 483         if (geom) {
 484             // --
 485             // add the border_width for the window managers frame... some window managers
 486             // do not use a border_width of zero for their frames, and if we the left and
 487             // top strut, we ensure that pos() is absolutely correct.  frameGeometry()
 488             // will still be incorrect though... perhaps i should have foffset as well, to
 489             // indicate the frame offset (equal to the border_width on X).
 490             // - Brad
 491             // -- copied from qwidget_x11.cpp
 492
 493             int left = offset.x() + geom->border_width;
 494             int top = offset.y() + geom->border_width;
 495             int right = geom->width + geom->border_width - geometry().width() - offset.x();
 496             int bottom = geom->height + geom->border_width - geometry().height() - offset.y();
 497
 498             m_frameMargins = QMargins(left, top, right, bottom);
 499
 500             free(geom);
 501         }
 502
 503         m_dirtyFrameMargins = false;
 504     }
 505
 506     return m_frameMargins;
 507 }
 508
 509 void QXcbWindow::setVisible(bool visible)
 510 {
 511     if (visible)
 512         show();
 513     else
 514         hide();
 515 }
 516
 517 void QXcbWindow::show()
 518 {
 519     if (window()->isTopLevel()) {
 520         xcb_get_property_cookie_t cookie = xcb_get_wm_hints_unchecked(xcb_connection(), m_window);
 521
 522         xcb_wm_hints_t hints;
 523         xcb_get_wm_hints_reply(xcb_connection(), cookie, &hints, NULL);
 524
 525         if (window()->windowState() & Qt::WindowMinimized)
 526             xcb_wm_hints_set_iconic(&hints);
 527         else
 528             xcb_wm_hints_set_normal(&hints);
 529
 530         xcb_wm_hints_set_input(&hints, !(window()->windowFlags() & Qt::WindowDoesNotAcceptFocus));
 531
 532         xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 533
 534         // update WM_NORMAL_HINTS
 535         propagateSizeHints();
 536
 537         // update WM_TRANSIENT_FOR
 538         if (window()->transientParent() && isTransient(window())) {
 539             QXcbWindow *transientXcbParent = static_cast<QXcbWindow *>(window()->transientParent()->handle());
 540             if (transientXcbParent) {
 541                 // ICCCM 4.1.2.6
 542                 xcb_window_t parentWindow = transientXcbParent->xcb_window();
 543
 544                 // todo: set transient for group (wm_client_leader) if no parent, a la qwidget_x11.cpp
 545                 Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 546                                                XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, 32,
 547                                                1, &parentWindow));
 548             }
 549         }
 550
 551         // update _MOTIF_WM_HINTS
 552         updateMotifWmHintsBeforeMap();
 553
 554         // update _NET_WM_STATE
 555         updateNetWmStateBeforeMap();
 556     }
 557
 558     if (connection()->time() != XCB_TIME_CURRENT_TIME)
 559         updateNetWmUserTime(connection()->time());
 560
 561     Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 562     xcb_flush(xcb_connection());
 563
 564     connection()->sync();
 565 }
 566
 567 void QXcbWindow::hide()
 568 {
 569     Q_XCB_CALL(xcb_unmap_window(xcb_connection(), m_window));
 570
 571     // send synthetic UnmapNotify event according to icccm 4.1.4
 572     xcb_unmap_notify_event_t event;
 573     event.response_type = XCB_UNMAP_NOTIFY;
 574     event.event = m_screen->root();
 575     event.window = m_window;
 576     event.from_configure = false;
 577     Q_XCB_CALL(xcb_send_event(xcb_connection(), false, m_screen->root(),
 578                               XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&event));
 579
 580     xcb_flush(xcb_connection());
 581
 582     m_mapped = false;
 583 }
 584
 585 struct QtMotifWmHints {
 586     quint32 flags, functions, decorations;
 587     qint32 input_mode;
 588     quint32 status;
 589 };
 590
 591 enum {
 592     MWM_HINTS_FUNCTIONS   = (1L << 0),
 593
 594     MWM_FUNC_ALL      = (1L << 0),
 595     MWM_FUNC_RESIZE   = (1L << 1),
 596     MWM_FUNC_MOVE     = (1L << 2),
 597     MWM_FUNC_MINIMIZE = (1L << 3),
 598     MWM_FUNC_MAXIMIZE = (1L << 4),
 599     MWM_FUNC_CLOSE    = (1L << 5),
 600
 601     MWM_HINTS_DECORATIONS = (1L << 1),
 602
 603     MWM_DECOR_ALL      = (1L << 0),
 604     MWM_DECOR_BORDER   = (1L << 1),
 605     MWM_DECOR_RESIZEH  = (1L << 2),
 606     MWM_DECOR_TITLE    = (1L << 3),
 607     MWM_DECOR_MENU     = (1L << 4),
 608     MWM_DECOR_MINIMIZE = (1L << 5),
 609     MWM_DECOR_MAXIMIZE = (1L << 6),
 610
 611     MWM_HINTS_INPUT_MODE = (1L << 2),
 612
 613     MWM_INPUT_MODELESS                  = 0L,
 614     MWM_INPUT_PRIMARY_APPLICATION_MODAL = 1L,
 615     MWM_INPUT_FULL_APPLICATION_MODAL    = 3L
 616 };
 617
 618 static QtMotifWmHints getMotifWmHints(QXcbConnection *c, xcb_window_t window)
 619 {
 620     QtMotifWmHints hints;
 621
 622     xcb_get_property_cookie_t get_cookie =
 623         xcb_get_property_unchecked(c->xcb_connection(), 0, window, c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 624                          c->atom(QXcbAtom::_MOTIF_WM_HINTS), 0, 20);
 625
 626     xcb_get_property_reply_t *reply =
 627         xcb_get_property_reply(c->xcb_connection(), get_cookie, NULL);
 628
 629     if (reply && reply->format == 32 && reply->type == c->atom(QXcbAtom::_MOTIF_WM_HINTS)) {
 630         hints = *((QtMotifWmHints *)xcb_get_property_value(reply));
 631     } else {
 632         hints.flags = 0L;
 633         hints.functions = MWM_FUNC_ALL;
 634         hints.decorations = MWM_DECOR_ALL;
 635         hints.input_mode = 0L;
 636         hints.status = 0L;
 637     }
 638
 639     free(reply);
 640
 641     return hints;
 642 }
 643
 644 static void setMotifWmHints(QXcbConnection *c, xcb_window_t window, const QtMotifWmHints &hints)
 645 {
 646     if (hints.flags != 0l) {
 647         Q_XCB_CALL2(xcb_change_property(c->xcb_connection(),
 648                                        XCB_PROP_MODE_REPLACE,
 649                                        window,
 650                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 651                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 652                                        32,
 653                                        5,
 654                                        &hints), c);
 655     } else {
 656         Q_XCB_CALL2(xcb_delete_property(c->xcb_connection(), window, c->atom(QXcbAtom::_MOTIF_WM_HINTS)), c);
 657     }
 658 }
 659
 660 QXcbWindow::NetWmStates QXcbWindow::netWmStates()
 661 {
 662     NetWmStates result(0);
 663
 664     xcb_get_property_cookie_t get_cookie =
 665         xcb_get_property_unchecked(xcb_connection(), 0, m_window, atom(QXcbAtom::_NET_WM_STATE),
 666                          XCB_ATOM_ATOM, 0, 1024);
 667
 668     xcb_get_property_reply_t *reply =
 669         xcb_get_property_reply(xcb_connection(), get_cookie, NULL);
 670
 671     if (reply && reply->format == 32 && reply->type == XCB_ATOM_ATOM) {
 672         const xcb_atom_t *states = static_cast<const xcb_atom_t *>(xcb_get_property_value(reply));
 673         const xcb_atom_t *statesEnd = states + reply->length;
 674         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_ABOVE)))
 675             result |= NetWmStateAbove;
 676         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_BELOW)))
 677             result |= NetWmStateBelow;
 678         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN)))
 679             result |= NetWmStateFullScreen;
 680         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ)))
 681             result |= NetWmStateMaximizedHorz;
 682         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT)))
 683             result |= NetWmStateMaximizedVert;
 684         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MODAL)))
 685             result |= NetWmStateModal;
 686         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP)))
 687             result |= NetWmStateStaysOnTop;
 688         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_DEMANDS_ATTENTION)))
 689             result |= NetWmStateDemandsAttention;
 690         free(reply);
 691     } else {
 692 #ifdef NET_WM_STATE_DEBUG
 693         printf("getting net wm state (%x), empty\n", m_window);
 694 #endif
 695     }
 696
 697     return result;
 698 }
 699
 700 void QXcbWindow::setNetWmStates(NetWmStates states)
 701 {
 702     QVector<xcb_atom_t> atoms;
 703     if (states & NetWmStateAbove)
 704         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_ABOVE));
 705     if (states & NetWmStateBelow)
 706         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_BELOW));
 707     if (states & NetWmStateFullScreen)
 708         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 709     if (states & NetWmStateMaximizedHorz)
 710         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ));
 711     if (states & NetWmStateMaximizedVert)
 712         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 713     if (states & NetWmStateModal)
 714         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MODAL));
 715     if (states & NetWmStateStaysOnTop)
 716         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP));
 717     if (states & NetWmStateDemandsAttention)
 718         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_DEMANDS_ATTENTION));
 719
 720     if (atoms.isEmpty()) {
 721         Q_XCB_CALL(xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_STATE)));
 722     } else {
 723         Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 724                                        atom(QXcbAtom::_NET_WM_STATE), XCB_ATOM_ATOM, 32,
 725                                        atoms.count(), atoms.constData()));
 726     }
 727     xcb_flush(xcb_connection());
 728 }
 729
 730 Qt::WindowFlags QXcbWindow::setWindowFlags(Qt::WindowFlags flags)
 731 {
 732     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 733
 734     if (type == Qt::ToolTip)
 735         flags |= Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint;
 736     if (type == Qt::Popup)
 737         flags |= Qt::X11BypassWindowManagerHint;
 738
 739     if (flags & Qt::WindowTransparentForInput) {
 740         uint32_t mask = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_VISIBILITY_CHANGE
 741                  | XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_RESIZE_REDIRECT
 742                 | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT
 743                 | XCB_EVENT_MASK_FOCUS_CHANGE  | XCB_EVENT_MASK_PROPERTY_CHANGE
 744                 | XCB_EVENT_MASK_COLOR_MAP_CHANGE | XCB_EVENT_MASK_OWNER_GRAB_BUTTON;
 745         xcb_change_window_attributes(xcb_connection(), xcb_window(), XCB_CW_EVENT_MASK, &mask);
 746     }
 747
 748     setNetWmWindowFlags(flags);
 749     setMotifWindowFlags(flags);
 750
 751     setTransparentForMouseEvents(flags & Qt::WindowTransparentForInput);
 752     updateDoesNotAcceptFocus(flags & Qt::WindowDoesNotAcceptFocus);
 753
 754     return flags;
 755 }
 756
 757 void QXcbWindow::setMotifWindowFlags(Qt::WindowFlags flags)
 758 {
 759     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 760
 761     QtMotifWmHints mwmhints;
 762     mwmhints.flags = 0L;
 763     mwmhints.functions = 0L;
 764     mwmhints.decorations = 0;
 765     mwmhints.input_mode = 0L;
 766     mwmhints.status = 0L;
 767
 768     if (type != Qt::SplashScreen) {
 769         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 770
 771         bool customize = flags & Qt::CustomizeWindowHint;
 772         if (!(flags & Qt::FramelessWindowHint) && !(customize && !(flags & Qt::WindowTitleHint))) {
 773             mwmhints.decorations |= MWM_DECOR_BORDER;
 774             mwmhints.decorations |= MWM_DECOR_RESIZEH;
 775
 776             if (flags & Qt::WindowTitleHint)
 777                 mwmhints.decorations |= MWM_DECOR_TITLE;
 778
 779             if (flags & Qt::WindowSystemMenuHint)
 780                 mwmhints.decorations |= MWM_DECOR_MENU;
 781
 782             if (flags & Qt::WindowMinimizeButtonHint) {
 783                 mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 784                 mwmhints.functions |= MWM_FUNC_MINIMIZE;
 785             }
 786
 787             if (flags & Qt::WindowMaximizeButtonHint) {
 788                 mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 789                 mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 790             }
 791
 792             if (flags & Qt::WindowCloseButtonHint)
 793                 mwmhints.functions |= MWM_FUNC_CLOSE;
 794         }
 795     } else {
 796         // if type == Qt::SplashScreen
 797         mwmhints.decorations = MWM_DECOR_ALL;
 798     }
 799
 800     if (mwmhints.functions != 0) {
 801         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 802         mwmhints.functions |= MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 803     } else {
 804         mwmhints.functions = MWM_FUNC_ALL;
 805     }
 806
 807     if (!(flags & Qt::FramelessWindowHint)
 808         && flags & Qt::CustomizeWindowHint
 809         && flags & Qt::WindowTitleHint
 810         && !(flags &
 811              (Qt::WindowMinimizeButtonHint
 812               | Qt::WindowMaximizeButtonHint
 813               | Qt::WindowCloseButtonHint)))
 814     {
 815         // a special case - only the titlebar without any button
 816         mwmhints.flags = MWM_HINTS_FUNCTIONS;
 817         mwmhints.functions = MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 818         mwmhints.decorations = 0;
 819     }
 820
 821     setMotifWmHints(connection(), m_window, mwmhints);
 822 }
 823
 824 void QXcbWindow::changeNetWmState(bool set, xcb_atom_t one, xcb_atom_t two)
 825 {
 826     xcb_client_message_event_t event;
 827
 828     event.response_type = XCB_CLIENT_MESSAGE;
 829     event.format = 32;
 830     event.window = m_window;
 831     event.type = atom(QXcbAtom::_NET_WM_STATE);
 832     event.data.data32[0] = set ? 1 : 0;
 833     event.data.data32[1] = one;
 834     event.data.data32[2] = two;
 835     event.data.data32[3] = 0;
 836     event.data.data32[4] = 0;
 837
 838     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));
 839 }
 840
 841 Qt::WindowState QXcbWindow::setWindowState(Qt::WindowState state)
 842 {
 843     if (state == m_windowState)
 844         return state;
 845
 846     // unset old state
 847     switch (m_windowState) {
 848     case Qt::WindowMinimized:
 849         Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 850         break;
 851     case Qt::WindowMaximized:
 852         changeNetWmState(false,
 853                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 854                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 855         break;
 856     case Qt::WindowFullScreen:
 857         changeNetWmState(false, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 858         break;
 859     default:
 860         break;
 861     }
 862
 863     // set new state
 864     switch (state) {
 865     case Qt::WindowMinimized:
 866         {
 867             xcb_client_message_event_t event;
 868
 869             event.response_type = XCB_CLIENT_MESSAGE;
 870             event.format = 32;
 871             event.window = m_window;
 872             event.type = atom(QXcbAtom::WM_CHANGE_STATE);
 873             event.data.data32[0] = XCB_WM_STATE_ICONIC;
 874             event.data.data32[1] = 0;
 875             event.data.data32[2] = 0;
 876             event.data.data32[3] = 0;
 877             event.data.data32[4] = 0;
 878
 879             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));
 880         }
 881         break;
 882     case Qt::WindowMaximized:
 883         changeNetWmState(true,
 884                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 885                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 886         break;
 887     case Qt::WindowFullScreen:
 888         changeNetWmState(true, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 889         break;
 890     case Qt::WindowNoState:
 891         break;
 892     default:
 893         break;
 894     }
 895
 896     connection()->sync();
 897
 898     m_windowState = state;
 899     return m_windowState;
 900 }
 901
 902 void QXcbWindow::setNetWmWindowFlags(Qt::WindowFlags flags)
 903 {
 904     // in order of decreasing priority
 905     QVector<uint> windowTypes;
 906
 907     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 908
 909     switch (type) {
 910     case Qt::Dialog:
 911     case Qt::Sheet:
 912         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_DIALOG));
 913         break;
 914     case Qt::Tool:
 915     case Qt::Drawer:
 916         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_UTILITY));
 917         break;
 918     case Qt::ToolTip:
 919         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_TOOLTIP));
 920         break;
 921     case Qt::SplashScreen:
 922         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_SPLASH));
 923         break;
 924     default:
 925         break;
 926     }
 927
 928     if (flags & Qt::FramelessWindowHint)
 929         windowTypes.append(atom(QXcbAtom::_KDE_NET_WM_WINDOW_TYPE_OVERRIDE));
 930
 931     windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_NORMAL));
 932
 933     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 934                                    atom(QXcbAtom::_NET_WM_WINDOW_TYPE), XCB_ATOM_ATOM, 32,
 935                                    windowTypes.count(), windowTypes.constData()));
 936 }
 937
 938 void QXcbWindow::updateMotifWmHintsBeforeMap()
 939 {
 940     QtMotifWmHints mwmhints = getMotifWmHints(connection(), m_window);
 941
 942     if (window()->windowModality() != Qt::NonModal) {
 943         switch (window()->windowModality()) {
 944         case Qt::WindowModal:
 945             mwmhints.input_mode = MWM_INPUT_PRIMARY_APPLICATION_MODAL;
 946             break;
 947         case Qt::ApplicationModal:
 948         default:
 949             mwmhints.input_mode = MWM_INPUT_FULL_APPLICATION_MODAL;
 950             break;
 951         }
 952         mwmhints.flags |= MWM_HINTS_INPUT_MODE;
 953     } else {
 954         mwmhints.input_mode = MWM_INPUT_MODELESS;
 955         mwmhints.flags &= ~MWM_HINTS_INPUT_MODE;
 956     }
 957
 958     if (window()->minimumSize() == window()->maximumSize()) {
 959         // fixed size, remove the resize handle (since mwm/dtwm
 960         // isn't smart enough to do it itself)
 961         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 962         if (mwmhints.functions == MWM_FUNC_ALL) {
 963             mwmhints.functions = MWM_FUNC_MOVE;
 964         } else {
 965             mwmhints.functions &= ~MWM_FUNC_RESIZE;
 966         }
 967
 968         if (mwmhints.decorations == MWM_DECOR_ALL) {
 969             mwmhints.flags |= MWM_HINTS_DECORATIONS;
 970             mwmhints.decorations = (MWM_DECOR_BORDER
 971                                     | MWM_DECOR_TITLE
 972                                     | MWM_DECOR_MENU);
 973         } else {
 974             mwmhints.decorations &= ~MWM_DECOR_RESIZEH;
 975         }
 976     }
 977
 978     if (window()->windowFlags() & Qt::WindowMinimizeButtonHint) {
 979         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 980         mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 981         mwmhints.functions |= MWM_FUNC_MINIMIZE;
 982     }
 983     if (window()->windowFlags() & Qt::WindowMaximizeButtonHint) {
 984         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 985         mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 986         mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 987     }
 988     if (window()->windowFlags() & Qt::WindowCloseButtonHint)
 989         mwmhints.functions |= MWM_FUNC_CLOSE;
 990
 991     setMotifWmHints(connection(), m_window, mwmhints);
 992 }
 993
 994 void QXcbWindow::updateNetWmStateBeforeMap()
 995 {
 996     NetWmStates states(0);
 997
 998     const Qt::WindowFlags flags = window()->windowFlags();
 999     if (flags & Qt::WindowStaysOnTopHint) {
1000         states |= NetWmStateAbove;
1001         states |= NetWmStateStaysOnTop;
1002     } else if (flags & Qt::WindowStaysOnBottomHint) {
1003         states |= NetWmStateBelow;
1004     }
1005
1006     if (window()->windowState() & Qt::WindowFullScreen)
1007         states |= NetWmStateFullScreen;
1008
1009     if (window()->windowState() & Qt::WindowMaximized) {
1010         states |= NetWmStateMaximizedHorz;
1011         states |= NetWmStateMaximizedVert;
1012     }
1013
1014     if (window()->windowModality() != Qt::NonModal)
1015         states |= NetWmStateModal;
1016
1017     setNetWmStates(states);
1018 }
1019
1020 void QXcbWindow::updateNetWmUserTime(xcb_timestamp_t timestamp)
1021 {
1022     xcb_window_t wid = m_window;
1023
1024     const bool isSupportedByWM = connection()->wmSupport()->isSupportedByWM(atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
1025     if (m_netWmUserTimeWindow || isSupportedByWM) {
1026         if (!m_netWmUserTimeWindow) {
1027             m_netWmUserTimeWindow = xcb_generate_id(xcb_connection());
1028             Q_XCB_CALL(xcb_create_window(xcb_connection(),
1029                                          XCB_COPY_FROM_PARENT,            // depth -- same as root
1030                                          m_netWmUserTimeWindow,                        // window id
1031                                          m_window,                   // parent window id
1032                                          -1, -1, 1, 1,
1033                                          0,                               // border width
1034                                          XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
1035                                          m_visualId,                      // visual
1036                                          0,                               // value mask
1037                                          0));                             // value list
1038             wid = m_netWmUserTimeWindow;
1039             xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW),
1040                                 XCB_ATOM_WINDOW, 32, 1, &m_netWmUserTimeWindow);
1041             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME));
1042         } else if (!isSupportedByWM) {
1043             // WM no longer supports it, then we should remove the
1044             // _NET_WM_USER_TIME_WINDOW atom.
1045             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
1046             xcb_destroy_window(xcb_connection(), m_netWmUserTimeWindow);
1047             m_netWmUserTimeWindow = XCB_NONE;
1048         } else {
1049             wid = m_netWmUserTimeWindow;
1050         }
1051     }
1052     xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, wid, atom(QXcbAtom::_NET_WM_USER_TIME),
1053                         XCB_ATOM_CARDINAL, 32, 1, &timestamp);
1054 }
1055
1056 void QXcbWindow::setTransparentForMouseEvents(bool transparent)
1057 {
1058     if (transparent == m_transparent)
1059         return;
1060
1061     xcb_rectangle_t rectangle;
1062
1063     xcb_rectangle_t *rect = 0;
1064     int nrect = 0;
1065
1066     if (!transparent) {
1067         rectangle.x = 0;
1068         rectangle.y = 0;
1069         rectangle.width = geometry().width();
1070         rectangle.height = geometry().height();
1071         rect = &rectangle;
1072         nrect = 1;
1073     }
1074
1075     xcb_xfixes_region_t region = xcb_generate_id(xcb_connection());
1076     xcb_xfixes_create_region(xcb_connection(), region, nrect, rect);
1077     xcb_xfixes_set_window_shape_region_checked(xcb_connection(), m_window, XCB_SHAPE_SK_INPUT, 0, 0, region);
1078     xcb_xfixes_destroy_region(xcb_connection(), region);
1079
1080     m_transparent = transparent;
1081 }
1082
1083 void QXcbWindow::updateDoesNotAcceptFocus(bool doesNotAcceptFocus)
1084 {
1085     xcb_get_property_cookie_t cookie = xcb_get_wm_hints_unchecked(xcb_connection(), m_window);
1086
1087     xcb_wm_hints_t hints;
1088     if (!xcb_get_wm_hints_reply(xcb_connection(), cookie, &hints, NULL)) {
1089         return;
1090     }
1091
1092     xcb_wm_hints_set_input(&hints, !doesNotAcceptFocus);
1093     xcb_set_wm_hints(xcb_connection(), m_window, &hints);
1094 }
1095
1096 WId QXcbWindow::winId() const
1097 {
1098     return m_window;
1099 }
1100
1101 void QXcbWindow::setParent(const QPlatformWindow *parent)
1102 {
1103     // re-create for compatibility
1104     create();
1105
1106     QPoint topLeft = geometry().topLeft();
1107
1108     xcb_window_t xcb_parent_id = parent ? static_cast<const QXcbWindow *>(parent)->xcb_window() : m_screen->root();
1109     Q_XCB_CALL(xcb_reparent_window(xcb_connection(), xcb_window(), xcb_parent_id, topLeft.x(), topLeft.y()));
1110 }
1111
1112 void QXcbWindow::setWindowTitle(const QString &title)
1113 {
1114     QByteArray ba = title.toUtf8();
1115     Q_XCB_CALL(xcb_change_property(xcb_connection(),
1116                                    XCB_PROP_MODE_REPLACE,
1117                                    m_window,
1118                                    atom(QXcbAtom::_NET_WM_NAME),
1119                                    atom(QXcbAtom::UTF8_STRING),
1120                                    8,
1121                                    ba.length(),
1122                                    ba.constData()));
1123 }
1124
1125 void QXcbWindow::raise()
1126 {
1127     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1128     const quint32 values[] = { XCB_STACK_MODE_ABOVE };
1129     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1130 }
1131
1132 void QXcbWindow::lower()
1133 {
1134     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1135     const quint32 values[] = { XCB_STACK_MODE_BELOW };
1136     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1137 }
1138
1139 // Adapt the geometry to match the WM expection with regards
1140 // to gravity.
1141 QRect QXcbWindow::windowToWmGeometry(QRect r) const
1142 {
1143     if (m_dirtyFrameMargins || m_frameMargins.isNull())
1144         return r;
1145     const bool frameInclusive = positionIncludesFrame(window());
1146     // XCB_GRAVITY_STATIC requires the inner geometry, whereas
1147     // XCB_GRAVITY_NORTH_WEST requires the frame geometry
1148     if (frameInclusive && m_gravity == XCB_GRAVITY_STATIC) {
1149         r.translate(m_frameMargins.left(), m_frameMargins.top());
1150     } else if (!frameInclusive && m_gravity == XCB_GRAVITY_NORTH_WEST) {
1151         r.translate(-m_frameMargins.left(), -m_frameMargins.top());
1152     }
1153     return r;
1154 }
1155
1156 void QXcbWindow::propagateSizeHints()
1157 {
1158     // update WM_NORMAL_HINTS
1159     xcb_size_hints_t hints;
1160     memset(&hints, 0, sizeof(hints));
1161
1162     const QRect rect = windowToWmGeometry(geometry());
1163
1164     QWindow *win = window();
1165
1166     xcb_size_hints_set_position(&hints, true, rect.x(), rect.y());
1167     xcb_size_hints_set_size(&hints, true, rect.width(), rect.height());
1168     xcb_size_hints_set_win_gravity(&hints, m_gravity);
1169
1170     QSize minimumSize = win->minimumSize();
1171     QSize maximumSize = win->maximumSize();
1172     QSize baseSize = win->baseSize();
1173     QSize sizeIncrement = win->sizeIncrement();
1174
1175     if (minimumSize.width() > 0 || minimumSize.height() > 0)
1176         xcb_size_hints_set_min_size(&hints, minimumSize.width(), minimumSize.height());
1177
1178     if (maximumSize.width() < QWINDOWSIZE_MAX || maximumSize.height() < QWINDOWSIZE_MAX)
1179         xcb_size_hints_set_max_size(&hints,
1180                                     qMin(XCOORD_MAX, maximumSize.width()),
1181                                     qMin(XCOORD_MAX, maximumSize.height()));
1182
1183     if (sizeIncrement.width() > 0 || sizeIncrement.height() > 0) {
1184         xcb_size_hints_set_base_size(&hints, baseSize.width(), baseSize.height());
1185         xcb_size_hints_set_resize_inc(&hints, sizeIncrement.width(), sizeIncrement.height());
1186     }
1187
1188     xcb_set_wm_normal_hints(xcb_connection(), m_window, &hints);
1189 }
1190
1191 void QXcbWindow::requestActivateWindow()
1192 {
1193     if (!m_mapped) {
1194         m_deferredActivation = true;
1195         return;
1196     }
1197     m_deferredActivation = false;
1198
1199     updateNetWmUserTime(connection()->time());
1200
1201     if (window()->isTopLevel()
1202         && connection()->wmSupport()->isSupportedByWM(atom(QXcbAtom::_NET_ACTIVE_WINDOW))) {
1203         xcb_client_message_event_t event;
1204
1205         event.response_type = XCB_CLIENT_MESSAGE;
1206         event.format = 32;
1207         event.window = m_window;
1208         event.type = atom(QXcbAtom::_NET_ACTIVE_WINDOW);
1209         event.data.data32[0] = 1;
1210         event.data.data32[1] = connection()->time();
1211         QWindow *focusWindow = QGuiApplication::focusWindow();
1212         event.data.data32[2] = focusWindow ? focusWindow->winId() : XCB_NONE;
1213         event.data.data32[3] = 0;
1214         event.data.data32[4] = 0;
1215
1216         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));
1217     } else {
1218         Q_XCB_CALL(xcb_set_input_focus(xcb_connection(), XCB_INPUT_FOCUS_PARENT, m_window, connection()->time()));
1219     }
1220
1221     connection()->sync();
1222 }
1223
1224 #if XCB_USE_MAEMO_WINDOW_PROPERTIES
1225 void QXcbWindow::handleContentOrientationChange(Qt::ScreenOrientation orientation)
1226 {
1227     int angle = 0;
1228     switch (orientation) {
1229         case Qt::PortraitOrientation: angle = 270; break;
1230         case Qt::LandscapeOrientation: angle = 0; break;
1231         case Qt::InvertedPortraitOrientation: angle = 90; break;
1232         case Qt::InvertedLandscapeOrientation: angle = 180; break;
1233         case Qt::PrimaryOrientation: break;
1234     }
1235     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
1236                                    atom(QXcbAtom::MeegoTouchOrientationAngle), XCB_ATOM_CARDINAL, 32,
1237                                    1, &angle));
1238 }
1239 #endif
1240
1241 QSurfaceFormat QXcbWindow::format() const
1242 {
1243     // ### return actual format
1244     return m_format;
1245 }
1246
1247 #if defined(XCB_USE_EGL)
1248 QXcbEGLSurface *QXcbWindow::eglSurface() const
1249 {
1250     if (!m_eglSurface) {
1251         EGLDisplay display = connection()->egl_display();
1252         EGLConfig config = q_configFromGLFormat(display, window()->requestedFormat(), true);
1253         EGLSurface surface = eglCreateWindowSurface(display, config, (EGLNativeWindowType)m_window, 0);
1254
1255         m_eglSurface = new QXcbEGLSurface(display, surface);
1256     }
1257
1258     return m_eglSurface;
1259 }
1260 #endif
1261
1262 void QXcbWindow::handleExposeEvent(const xcb_expose_event_t *event)
1263 {
1264     QRect rect(event->x, event->y, event->width, event->height);
1265
1266     if (m_exposeRegion.isEmpty())
1267         m_exposeRegion = rect;
1268     else
1269         m_exposeRegion |= rect;
1270
1271     // if count is non-zero there are more expose events pending
1272     if (event->count == 0) {
1273         QWindowSystemInterface::handleExposeEvent(window(), m_exposeRegion);
1274         m_exposeRegion = QRegion();
1275     }
1276 }
1277
1278 void QXcbWindow::handleClientMessageEvent(const xcb_client_message_event_t *event)
1279 {
1280     if (event->format != 32)
1281         return;
1282
1283     if (event->type == atom(QXcbAtom::WM_PROTOCOLS)) {
1284         if (event->data.data32[0] == atom(QXcbAtom::WM_DELETE_WINDOW)) {
1285             QWindowSystemInterface::handleCloseEvent(window());
1286         } else if (event->data.data32[0] == atom(QXcbAtom::WM_TAKE_FOCUS)) {
1287             connection()->setTime(event->data.data32[1]);
1288         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_PING)) {
1289             xcb_client_message_event_t reply = *event;
1290
1291             reply.response_type = XCB_CLIENT_MESSAGE;
1292             reply.window = m_screen->root();
1293
1294             xcb_send_event(xcb_connection(), 0, m_screen->root(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&reply);
1295             xcb_flush(xcb_connection());
1296         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_SYNC_REQUEST)) {
1297             connection()->setTime(event->data.data32[1]);
1298             m_syncValue.lo = event->data.data32[2];
1299             m_syncValue.hi = event->data.data32[3];
1300         } else {
1301             qWarning() << "QXcbWindow: Unhandled WM_PROTOCOLS message:" << connection()->atomName(event->data.data32[0]);
1302         }
1303 #ifndef QT_NO_DRAGANDDROP
1304     } else if (event->type == atom(QXcbAtom::XdndEnter)) {
1305         connection()->drag()->handleEnter(window(), event);
1306     } else if (event->type == atom(QXcbAtom::XdndPosition)) {
1307         connection()->drag()->handlePosition(window(), event);
1308     } else if (event->type == atom(QXcbAtom::XdndLeave)) {
1309         connection()->drag()->handleLeave(window(), event);
1310     } else if (event->type == atom(QXcbAtom::XdndDrop)) {
1311         connection()->drag()->handleDrop(window(), event);
1312 #endif
1313     } else if (event->type == atom(QXcbAtom::_XEMBED)) { // QSystemTrayIcon
1314     } else {
1315         qWarning() << "QXcbWindow: Unhandled client message:" << connection()->atomName(event->type);
1316     }
1317 }
1318
1319 void QXcbWindow::handleConfigureNotifyEvent(const xcb_configure_notify_event_t *event)
1320 {
1321     bool fromSendEvent = (event->response_type & 0x80);
1322     QPoint pos(event->x, event->y);
1323     if (!parent() && !fromSendEvent) {
1324         // Do not trust the position, query it instead.
1325         xcb_translate_coordinates_cookie_t cookie = xcb_translate_coordinates(xcb_connection(), xcb_window(),
1326                                                                               m_screen->root(), 0, 0);
1327         xcb_translate_coordinates_reply_t *reply = xcb_translate_coordinates_reply(xcb_connection(), cookie, NULL);
1328         if (reply) {
1329             pos.setX(reply->dst_x);
1330             pos.setY(reply->dst_y);
1331             free(reply);
1332         }
1333     }
1334
1335     QRect rect(pos, QSize(event->width, event->height));
1336
1337     QPlatformWindow::setGeometry(rect);
1338     QWindowSystemInterface::handleGeometryChange(window(), rect);
1339
1340     m_configureNotifyPending = false;
1341
1342     if (m_deferredExpose) {
1343         m_deferredExpose = false;
1344         QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
1345     }
1346
1347     m_dirtyFrameMargins = true;
1348
1349 #if XCB_USE_DRI2
1350     if (m_context)
1351         static_cast<QDri2Context *>(m_context)->resize(rect.size());
1352 #endif
1353 }
1354
1355 bool QXcbWindow::isExposed() const
1356 {
1357     return m_mapped;
1358 }
1359
1360 void QXcbWindow::handleMapNotifyEvent(const xcb_map_notify_event_t *event)
1361 {
1362     if (event->window == m_window) {
1363         m_mapped = true;
1364         if (m_deferredActivation)
1365             requestActivateWindow();
1366         if (m_configureNotifyPending)
1367             m_deferredExpose = true;
1368         else
1369             QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
1370     }
1371 }
1372
1373 void QXcbWindow::handleUnmapNotifyEvent(const xcb_unmap_notify_event_t *event)
1374 {
1375     if (event->window == m_window) {
1376         m_mapped = false;
1377         QWindowSystemInterface::handleExposeEvent(window(), QRegion());
1378     }
1379 }
1380
1381 static Qt::MouseButtons translateMouseButtons(int s)
1382 {
1383     Qt::MouseButtons ret = 0;
1384     if (s & XCB_BUTTON_MASK_1)
1385         ret |= Qt::LeftButton;
1386     if (s & XCB_BUTTON_MASK_2)
1387         ret |= Qt::MidButton;
1388     if (s & XCB_BUTTON_MASK_3)
1389         ret |= Qt::RightButton;
1390     return ret;
1391 }
1392
1393 static Qt::MouseButton translateMouseButton(xcb_button_t s)
1394 {
1395     switch (s) {
1396     case 1: return Qt::LeftButton;
1397     case 2: return Qt::MidButton;
1398     case 3: return Qt::RightButton;
1399     // Button values 4-7 were already handled as Wheel events, and won't occur here.
1400     case 8: return Qt::BackButton;      // Also known as Qt::ExtraButton1
1401     case 9: return Qt::ForwardButton;   // Also known as Qt::ExtraButton2
1402     case 10: return Qt::ExtraButton3;
1403     case 11: return Qt::ExtraButton4;
1404     case 12: return Qt::ExtraButton5;
1405     case 13: return Qt::ExtraButton6;
1406     case 14: return Qt::ExtraButton7;
1407     case 15: return Qt::ExtraButton8;
1408     case 16: return Qt::ExtraButton9;
1409     case 17: return Qt::ExtraButton10;
1410     case 18: return Qt::ExtraButton11;
1411     case 19: return Qt::ExtraButton12;
1412     case 20: return Qt::ExtraButton13;
1413     case 21: return Qt::ExtraButton14;
1414     case 22: return Qt::ExtraButton15;
1415     case 23: return Qt::ExtraButton16;
1416     case 24: return Qt::ExtraButton17;
1417     case 25: return Qt::ExtraButton18;
1418     case 26: return Qt::ExtraButton19;
1419     case 27: return Qt::ExtraButton20;
1420     case 28: return Qt::ExtraButton21;
1421     case 29: return Qt::ExtraButton22;
1422     case 30: return Qt::ExtraButton23;
1423     case 31: return Qt::ExtraButton24;
1424     default: return Qt::NoButton;
1425     }
1426 }
1427
1428 void QXcbWindow::handleButtonPressEvent(const xcb_button_press_event_t *event)
1429 {
1430     updateNetWmUserTime(event->time);
1431
1432     QPoint local(event->event_x, event->event_y);
1433     QPoint global(event->root_x, event->root_y);
1434
1435     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1436
1437     if (event->detail >= 4 && event->detail <= 7) {
1438         // Logic borrowed from qapplication_x11.cpp
1439         int delta = 120 * ((event->detail == 4 || event->detail == 6) ? 1 : -1);
1440         bool hor = (((event->detail == 4 || event->detail == 5)
1441                      && (modifiers & Qt::AltModifier))
1442                     || (event->detail == 6 || event->detail == 7));
1443
1444         QWindowSystemInterface::handleWheelEvent(window(), event->time,
1445                                                  local, global, delta, hor ? Qt::Horizontal : Qt::Vertical, modifiers);
1446         return;
1447     }
1448
1449     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1450 }
1451
1452 void QXcbWindow::handleButtonReleaseEvent(const xcb_button_release_event_t *event)
1453 {
1454     QPoint local(event->event_x, event->event_y);
1455     QPoint global(event->root_x, event->root_y);
1456     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1457
1458     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1459 }
1460
1461 void QXcbWindow::handleMotionNotifyEvent(const xcb_motion_notify_event_t *event)
1462 {
1463     QPoint local(event->event_x, event->event_y);
1464     QPoint global(event->root_x, event->root_y);
1465     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1466
1467     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1468 }
1469
1470 void QXcbWindow::handleMouseEvent(xcb_button_t detail, uint16_t state, xcb_timestamp_t time, const QPoint &local, const QPoint &global, Qt::KeyboardModifiers modifiers)
1471 {
1472     connection()->setTime(time);
1473
1474     Qt::MouseButtons buttons = translateMouseButtons(state);
1475     Qt::MouseButton button = translateMouseButton(detail);
1476
1477     buttons ^= button; // X event uses state *before*, Qt uses state *after*
1478
1479     QWindowSystemInterface::handleMouseEvent(window(), time, local, global, buttons, modifiers);
1480 }
1481
1482 void QXcbWindow::handleEnterNotifyEvent(const xcb_enter_notify_event_t *event)
1483 {
1484     connection()->setTime(event->time);
1485
1486     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1487         || event->detail == XCB_NOTIFY_DETAIL_VIRTUAL
1488         || event->detail == XCB_NOTIFY_DETAIL_NONLINEAR_VIRTUAL)
1489     {
1490         return;
1491     }
1492
1493     QWindowSystemInterface::handleEnterEvent(window());
1494 }
1495
1496 void QXcbWindow::handleLeaveNotifyEvent(const xcb_leave_notify_event_t *event)
1497 {
1498     connection()->setTime(event->time);
1499
1500     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1501         || event->detail == XCB_NOTIFY_DETAIL_INFERIOR)
1502     {
1503         return;
1504     }
1505
1506     QWindowSystemInterface::handleLeaveEvent(window());
1507 }
1508
1509 void QXcbWindow::handlePropertyNotifyEvent(const xcb_property_notify_event_t *event)
1510 {
1511     connection()->setTime(event->time);
1512
1513     const bool propertyDeleted = event->state == XCB_PROPERTY_DELETE;
1514     const xcb_atom_t netWmStateAtom = atom(QXcbAtom::_NET_WM_STATE);
1515     const xcb_atom_t wmStateAtom = atom(QXcbAtom::WM_STATE);
1516
1517     if (event->atom == netWmStateAtom || event->atom == wmStateAtom) {
1518         if (propertyDeleted)
1519             return;
1520
1521         Qt::WindowState newState = Qt::WindowNoState;
1522         if (event->atom == wmStateAtom) { // WM_STATE: Quick check for 'Minimize'.
1523             const xcb_get_property_cookie_t get_cookie =
1524                 xcb_get_property(xcb_connection(), 0, m_window, wmStateAtom,
1525                                  XCB_ATOM_ANY, 0, 1024);
1526
1527             xcb_get_property_reply_t *reply =
1528                 xcb_get_property_reply(xcb_connection(), get_cookie, NULL);
1529
1530             if (reply && reply->format == 32 && reply->type == wmStateAtom) {
1531                 const long *data = (const long *)xcb_get_property_value(reply);
1532                 if (reply->length != 0 && XCB_WM_STATE_ICONIC == data[0])
1533                     newState = Qt::WindowMinimized;
1534                 free(reply);
1535             }
1536         } // WM_STATE: Quick check for 'Minimize'.
1537         if (newState != Qt::WindowMinimized) { // Something else changed, get _NET_WM_STATE.
1538             const NetWmStates states = netWmStates();
1539             if ((states & NetWmStateMaximizedHorz) && (states & NetWmStateMaximizedVert))
1540                 newState = Qt::WindowMaximized;
1541             else if (states & NetWmStateFullScreen)
1542                 newState = Qt::WindowFullScreen;
1543         }
1544         // Send Window state, compress events in case other flags (modality, etc) are changed.
1545         if (m_lastWindowStateEvent != newState) {
1546             QWindowSystemInterface::handleWindowStateChanged(window(), newState);
1547             m_lastWindowStateEvent = newState;
1548         }
1549     }
1550 }
1551
1552 void QXcbWindow::handleFocusInEvent(const xcb_focus_in_event_t *)
1553 {
1554     QWindowSystemInterface::handleWindowActivated(window());
1555 }
1556
1557 static bool focusInPeeker(xcb_generic_event_t *event)
1558 {
1559     if (!event) {
1560         // FocusIn event is not in the queue, proceed with FocusOut normally.
1561         QWindowSystemInterface::handleWindowActivated(0);
1562         return true;
1563     }
1564     uint response_type = event->response_type & ~0x80;
1565     return response_type == XCB_FOCUS_IN;
1566 }
1567
1568 void QXcbWindow::handleFocusOutEvent(const xcb_focus_out_event_t *)
1569 {
1570     // Do not set the active window to 0 if there is a FocusIn coming.
1571     // There is however no equivalent for XPutBackEvent so register a
1572     // callback for QXcbConnection instead.
1573     connection()->addPeekFunc(focusInPeeker);
1574 }
1575
1576 void QXcbWindow::updateSyncRequestCounter()
1577 {
1578     if (m_screen->syncRequestSupported() && (m_syncValue.lo != 0 || m_syncValue.hi != 0)) {
1579         Q_XCB_CALL(xcb_sync_set_counter(xcb_connection(), m_syncCounter, m_syncValue));
1580         xcb_flush(xcb_connection());
1581         connection()->sync();
1582
1583         m_syncValue.lo = 0;
1584         m_syncValue.hi = 0;
1585     }
1586 }
1587
1588 bool QXcbWindow::setKeyboardGrabEnabled(bool grab)
1589 {
1590     if (!grab) {
1591         xcb_ungrab_keyboard(xcb_connection(), XCB_TIME_CURRENT_TIME);
1592         return true;
1593     }
1594     xcb_grab_keyboard_cookie_t cookie = xcb_grab_keyboard(xcb_connection(), false,
1595                                                           m_window, XCB_TIME_CURRENT_TIME,
1596                                                           XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
1597     xcb_grab_keyboard_reply_t *reply = xcb_grab_keyboard_reply(xcb_connection(), cookie, NULL);
1598     bool result = !(!reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1599     free(reply);
1600     return result;
1601 }
1602
1603 bool QXcbWindow::setMouseGrabEnabled(bool grab)
1604 {
1605     if (!grab) {
1606         xcb_ungrab_pointer(xcb_connection(), XCB_TIME_CURRENT_TIME);
1607         return true;
1608     }
1609     xcb_grab_pointer_cookie_t cookie = xcb_grab_pointer(xcb_connection(), false, m_window,
1610                                                         (XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE
1611                                                          | XCB_EVENT_MASK_BUTTON_MOTION | XCB_EVENT_MASK_ENTER_WINDOW
1612                                                          | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_POINTER_MOTION),
1613                                                         XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC,
1614                                                         XCB_WINDOW_NONE, XCB_CURSOR_NONE,
1615                                                         XCB_TIME_CURRENT_TIME);
1616     xcb_grab_pointer_reply_t *reply = xcb_grab_pointer_reply(xcb_connection(), cookie, NULL);
1617     bool result = !(!reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1618     free(reply);
1619     return result;
1620 }
1621
1622 void QXcbWindow::setCursor(xcb_cursor_t cursor)
1623 {
1624     xcb_change_window_attributes(xcb_connection(), m_window, XCB_CW_CURSOR, &cursor);
1625     xcb_flush(xcb_connection());
1626 }
1627
1628 QT_END_NAMESPACE