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 #include <QtGui/QIcon>
  47
  48 #include "qxcbconnection.h"
  49 #include "qxcbscreen.h"
  50 #include "qxcbdrag.h"
  51 #include "qxcbkeyboard.h"
  52 #include "qxcbwmsupport.h"
  53 #include "qxcbimage.h"
  54
  55 #include <qpa/qplatformintegration.h>
  56
  57 #ifdef XCB_USE_DRI2
  58 #include "qdri2context.h"
  59 #endif
  60
  61 // FIXME This workaround can be removed for xcb-icccm > 3.8
  62 #define class class_name
  63 #include <xcb/xcb_icccm.h>
  64 #undef class
  65 #include <xcb/xfixes.h>
  66
  67 // xcb-icccm 3.8 support
  68 #ifdef XCB_ICCCM_NUM_WM_SIZE_HINTS_ELEMENTS
  69 #define xcb_get_wm_hints_reply xcb_icccm_get_wm_hints_reply
  70 #define xcb_get_wm_hints xcb_icccm_get_wm_hints
  71 #define xcb_get_wm_hints_unchecked xcb_icccm_get_wm_hints_unchecked
  72 #define xcb_set_wm_hints xcb_icccm_set_wm_hints
  73 #define xcb_set_wm_normal_hints xcb_icccm_set_wm_normal_hints
  74 #define xcb_size_hints_set_base_size xcb_icccm_size_hints_set_base_size
  75 #define xcb_size_hints_set_max_size xcb_icccm_size_hints_set_max_size
  76 #define xcb_size_hints_set_min_size xcb_icccm_size_hints_set_min_size
  77 #define xcb_size_hints_set_position xcb_icccm_size_hints_set_position
  78 #define xcb_size_hints_set_resize_inc xcb_icccm_size_hints_set_resize_inc
  79 #define xcb_size_hints_set_size xcb_icccm_size_hints_set_size
  80 #define xcb_size_hints_set_win_gravity xcb_icccm_size_hints_set_win_gravity
  81 #define xcb_wm_hints_set_iconic xcb_icccm_wm_hints_set_iconic
  82 #define xcb_wm_hints_set_normal xcb_icccm_wm_hints_set_normal
  83 #define xcb_wm_hints_set_input xcb_icccm_wm_hints_set_input
  84 #define xcb_wm_hints_t xcb_icccm_wm_hints_t
  85 #define XCB_WM_STATE_ICONIC XCB_ICCCM_WM_STATE_ICONIC
  86 #define XCB_WM_STATE_WITHDRAWN XCB_ICCCM_WM_STATE_WITHDRAWN
  87 #endif
  88
  89 #include <private/qguiapplication_p.h>
  90 #include <private/qwindow_p.h>
  91
  92 #include <qpa/qplatformbackingstore.h>
  93 #include <QtGui/QWindowSystemInterface>
  94
  95 #include <stdio.h>
  96
  97 #ifdef XCB_USE_XLIB
  98 #include <X11/Xlib.h>
  99 #include <X11/Xutil.h>
 100 #endif
 101
 102 #ifdef XCB_USE_XINPUT2_MAEMO
 103 #include <X11/extensions/XInput2.h>
 104 #endif
 105
 106 #if defined(XCB_USE_GLX)
 107 #include "qglxintegration.h"
 108 #include <QtPlatformSupport/private/qglxconvenience_p.h>
 109 #elif defined(XCB_USE_EGL)
 110 #include "qxcbeglsurface.h"
 111 #include <QtPlatformSupport/private/qeglconvenience_p.h>
 112 #include <QtPlatformSupport/private/qxlibeglintegration_p.h>
 113 #endif
 114
 115 #define XCOORD_MAX 16383
 116
 117 //#ifdef NET_WM_STATE_DEBUG
 118
 119 QT_BEGIN_NAMESPACE
 120
 121 // Returns true if we should set WM_TRANSIENT_FOR on \a w
 122 static inline bool isTransient(const QWindow *w)
 123 {
 124     return w->windowType() == Qt::Dialog
 125            || w->windowType() == Qt::Sheet
 126            || w->windowType() == Qt::Tool
 127            || w->windowType() == Qt::SplashScreen
 128            || w->windowType() == Qt::ToolTip
 129            || w->windowType() == Qt::Drawer
 130            || w->windowType() == Qt::Popup;
 131 }
 132
 133 static inline QImage::Format imageFormatForDepth(int depth)
 134 {
 135     switch (depth) {
 136         case 32: return QImage::Format_ARGB32_Premultiplied;
 137         case 24: return QImage::Format_RGB32;
 138         case 16: return QImage::Format_RGB16;
 139         default: return QImage::Format_Invalid;
 140     }
 141 }
 142
 143 static inline bool positionIncludesFrame(QWindow *w)
 144 {
 145     return qt_window_private(w)->positionPolicy == QWindowPrivate::WindowFrameInclusive;
 146 }
 147
 148 QXcbWindow::QXcbWindow(QWindow *window)
 149     : QPlatformWindow(window)
 150     , m_window(0)
 151     , m_syncCounter(0)
 152     , m_gravity(XCB_GRAVITY_STATIC)
 153     , m_mapped(false)
 154     , m_transparent(false)
 155     , m_deferredActivation(false)
 156     , m_netWmUserTimeWindow(XCB_NONE)
 157     , m_dirtyFrameMargins(false)
 158 #if defined(XCB_USE_EGL)
 159     , m_eglSurface(0)
 160 #endif
 161     , m_lastWindowStateEvent(-1)
 162 {
 163     m_screen = static_cast<QXcbScreen *>(window->screen()->handle());
 164
 165     setConnection(m_screen->connection());
 166
 167     create();
 168 }
 169
 170 void QXcbWindow::create()
 171 {
 172     destroy();
 173
 174     m_deferredExpose = false;
 175     m_configureNotifyPending = true;
 176     m_windowState = Qt::WindowNoState;
 177
 178     Qt::WindowType type = window()->windowType();
 179
 180     if (type == Qt::Desktop) {
 181         m_window = m_screen->root();
 182         m_depth = m_screen->screen()->root_depth;
 183         m_imageFormat = imageFormatForDepth(m_depth);
 184         connection()->addWindow(m_window, this);
 185         return;
 186     }
 187
 188     // Determine gravity from initial position. Do not change
 189     // later as it will cause the window to move uncontrollably.
 190     m_gravity = positionIncludesFrame(window()) ?
 191                 XCB_GRAVITY_NORTH_WEST : XCB_GRAVITY_STATIC;
 192
 193     const quint32 mask = XCB_CW_BACK_PIXMAP | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_SAVE_UNDER | XCB_CW_EVENT_MASK;
 194     const quint32 values[] = {
 195         // XCB_CW_BACK_PIXMAP
 196         XCB_NONE,
 197         // XCB_CW_OVERRIDE_REDIRECT
 198         type == Qt::Popup || type == Qt::ToolTip,
 199         // XCB_CW_SAVE_UNDER
 200         type == Qt::Popup || type == Qt::Tool || type == Qt::SplashScreen || type == Qt::ToolTip || type == Qt::Drawer,
 201         // XCB_CW_EVENT_MASK
 202         XCB_EVENT_MASK_EXPOSURE
 203         | XCB_EVENT_MASK_STRUCTURE_NOTIFY
 204         | XCB_EVENT_MASK_KEY_PRESS
 205         | XCB_EVENT_MASK_KEY_RELEASE
 206         | XCB_EVENT_MASK_BUTTON_PRESS
 207         | XCB_EVENT_MASK_BUTTON_RELEASE
 208         | XCB_EVENT_MASK_BUTTON_MOTION
 209         | XCB_EVENT_MASK_ENTER_WINDOW
 210         | XCB_EVENT_MASK_LEAVE_WINDOW
 211         | XCB_EVENT_MASK_POINTER_MOTION
 212         | XCB_EVENT_MASK_PROPERTY_CHANGE
 213         | XCB_EVENT_MASK_FOCUS_CHANGE
 214     };
 215
 216     // Parameters to XCreateWindow() are frame corner + inner size.
 217     // This fits in case position policy is frame inclusive. There is
 218     // currently no way to implement it for frame-exclusive geometries.
 219     QRect rect = window()->geometry();
 220     QPlatformWindow::setGeometry(rect);
 221
 222     rect.setWidth(qBound(1, rect.width(), XCOORD_MAX));
 223     rect.setHeight(qBound(1, rect.height(), XCOORD_MAX));
 224
 225     xcb_window_t xcb_parent_id = m_screen->root();
 226     if (parent())
 227         xcb_parent_id = static_cast<QXcbWindow *>(parent())->xcb_window();
 228
 229     m_format = window()->requestedFormat();
 230
 231 #if (defined(XCB_USE_GLX) || defined(XCB_USE_EGL)) && defined(XCB_USE_XLIB)
 232     if (QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::OpenGL)
 233         || m_format.hasAlpha())
 234     {
 235 #if defined(XCB_USE_GLX)
 236         XVisualInfo *visualInfo = qglx_findVisualInfo(DISPLAY_FROM_XCB(m_screen), m_screen->screenNumber(), &m_format);
 237         if (!visualInfo)
 238             qFatal("Could not initialize GLX");
 239 #elif defined(XCB_USE_EGL)
 240         EGLDisplay eglDisplay = connection()->egl_display();
 241         EGLConfig eglConfig = q_configFromGLFormat(eglDisplay, m_format, true);
 242         m_format = q_glFormatFromConfig(eglDisplay, eglConfig);
 243
 244         VisualID id = QXlibEglIntegration::getCompatibleVisualId(DISPLAY_FROM_XCB(this), eglDisplay, eglConfig);
 245
 246         XVisualInfo visualInfoTemplate;
 247         memset(&visualInfoTemplate, 0, sizeof(XVisualInfo));
 248         visualInfoTemplate.visualid = id;
 249
 250         XVisualInfo *visualInfo;
 251         int matchingCount = 0;
 252         visualInfo = XGetVisualInfo(DISPLAY_FROM_XCB(this), VisualIDMask, &visualInfoTemplate, &matchingCount);
 253         if (!visualInfo)
 254             qFatal("Could not initialize EGL");
 255 #endif //XCB_USE_GLX
 256         m_depth = visualInfo->depth;
 257         m_imageFormat = imageFormatForDepth(m_depth);
 258         Colormap cmap = XCreateColormap(DISPLAY_FROM_XCB(this), xcb_parent_id, visualInfo->visual, AllocNone);
 259
 260         XSetWindowAttributes a;
 261         a.background_pixel = WhitePixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 262         a.border_pixel = BlackPixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 263         a.colormap = cmap;
 264
 265         m_visualId = visualInfo->visualid;
 266
 267         m_window = XCreateWindow(DISPLAY_FROM_XCB(this), xcb_parent_id, rect.x(), rect.y(), rect.width(), rect.height(),
 268                                   0, visualInfo->depth, InputOutput, visualInfo->visual,
 269                                   CWBackPixel|CWBorderPixel|CWColormap, &a);
 270
 271         XFree(visualInfo);
 272     } else
 273 #endif //defined(XCB_USE_GLX) || defined(XCB_USE_EGL)
 274     {
 275         m_window = xcb_generate_id(xcb_connection());
 276         m_depth = m_screen->screen()->root_depth;
 277         m_imageFormat = imageFormatForDepth(m_depth);
 278         m_visualId = m_screen->screen()->root_visual;
 279
 280         Q_XCB_CALL(xcb_create_window(xcb_connection(),
 281                                      XCB_COPY_FROM_PARENT,            // depth -- same as root
 282                                      m_window,                        // window id
 283                                      xcb_parent_id,                   // parent window id
 284                                      rect.x(),
 285                                      rect.y(),
 286                                      rect.width(),
 287                                      rect.height(),
 288                                      0,                               // border width
 289                                      XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
 290                                      m_visualId,                      // visual
 291                                      0,                               // value mask
 292                                      0));                             // value list
 293     }
 294
 295     connection()->addWindow(m_window, this);
 296
 297     Q_XCB_CALL(xcb_change_window_attributes(xcb_connection(), m_window, mask, values));
 298
 299     propagateSizeHints();
 300
 301     xcb_atom_t properties[4];
 302     int propertyCount = 0;
 303     properties[propertyCount++] = atom(QXcbAtom::WM_DELETE_WINDOW);
 304     properties[propertyCount++] = atom(QXcbAtom::WM_TAKE_FOCUS);
 305     properties[propertyCount++] = atom(QXcbAtom::_NET_WM_PING);
 306
 307     if (m_screen->syncRequestSupported())
 308         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_SYNC_REQUEST);
 309
 310     if (window()->windowFlags() & Qt::WindowContextHelpButtonHint)
 311         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_CONTEXT_HELP);
 312
 313     Q_XCB_CALL(xcb_change_property(xcb_connection(),
 314                                    XCB_PROP_MODE_REPLACE,
 315                                    m_window,
 316                                    atom(QXcbAtom::WM_PROTOCOLS),
 317                                    XCB_ATOM_ATOM,
 318                                    32,
 319                                    propertyCount,
 320                                    properties));
 321     m_syncValue.hi = 0;
 322     m_syncValue.lo = 0;
 323
 324     if (m_screen->syncRequestSupported()) {
 325         m_syncCounter = xcb_generate_id(xcb_connection());
 326         Q_XCB_CALL(xcb_sync_create_counter(xcb_connection(), m_syncCounter, m_syncValue));
 327
 328         Q_XCB_CALL(xcb_change_property(xcb_connection(),
 329                                        XCB_PROP_MODE_REPLACE,
 330                                        m_window,
 331                                        atom(QXcbAtom::_NET_WM_SYNC_REQUEST_COUNTER),
 332                                        XCB_ATOM_CARDINAL,
 333                                        32,
 334                                        1,
 335                                        &m_syncCounter));
 336     }
 337
 338     // set the PID to let the WM kill the application if unresponsive
 339     long pid = getpid();
 340     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 341                                    atom(QXcbAtom::_NET_WM_PID), XCB_ATOM_CARDINAL, 32,
 342                                    1, &pid));
 343
 344     xcb_wm_hints_t hints;
 345     memset(&hints, 0, sizeof(hints));
 346     xcb_wm_hints_set_normal(&hints);
 347
 348     xcb_wm_hints_set_input(&hints, !(window()->windowFlags() & Qt::WindowDoesNotAcceptFocus));
 349
 350     xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 351
 352     xcb_window_t leader = m_screen->clientLeader();
 353     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 354                                    atom(QXcbAtom::WM_CLIENT_LEADER), XCB_ATOM_WINDOW, 32,
 355                                    1, &leader));
 356
 357 #ifdef XCB_USE_XINPUT2_MAEMO
 358     if (connection()->isUsingXInput2()) {
 359         XIEventMask xieventmask;
 360         uchar bitmask[2] = { 0, 0 };
 361
 362         xieventmask.deviceid = XIAllMasterDevices;
 363         xieventmask.mask = bitmask;
 364         xieventmask.mask_len = sizeof(bitmask);
 365
 366         XISetMask(bitmask, XI_ButtonPress);
 367         XISetMask(bitmask, XI_ButtonRelease);
 368         XISetMask(bitmask, XI_Motion);
 369
 370         XISelectEvents(DISPLAY_FROM_XCB(this), m_window, &xieventmask, 1);
 371     }
 372 #endif
 373
 374     setWindowFlags(window()->windowFlags());
 375     setWindowTitle(window()->windowTitle());
 376     setWindowState(window()->windowState());
 377
 378     if (window()->windowFlags() & Qt::WindowTransparentForInput)
 379         setTransparentForMouseEvents(true);
 380
 381 #ifndef QT_NO_DRAGANDDROP
 382     connection()->drag()->dndEnable(this, true);
 383 #endif
 384 }
 385
 386 QXcbWindow::~QXcbWindow()
 387 {
 388     destroy();
 389 }
 390
 391 void QXcbWindow::destroy()
 392 {
 393     if (m_syncCounter && m_screen->syncRequestSupported())
 394         Q_XCB_CALL(xcb_sync_destroy_counter(xcb_connection(), m_syncCounter));
 395     if (m_window) {
 396         if (m_netWmUserTimeWindow) {
 397             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
 398             // Some window managers, like metacity, do XSelectInput on the _NET_WM_USER_TIME_WINDOW window,
 399             // without trapping BadWindow (which crashes when the user time window is destroyed).
 400             connection()->sync();
 401             xcb_destroy_window(xcb_connection(), m_netWmUserTimeWindow);
 402             m_netWmUserTimeWindow = XCB_NONE;
 403         }
 404         connection()->removeWindow(m_window);
 405         Q_XCB_CALL(xcb_destroy_window(xcb_connection(), m_window));
 406     }
 407     m_mapped = false;
 408
 409 #if defined(XCB_USE_EGL)
 410     delete m_eglSurface;
 411     m_eglSurface = 0;
 412 #endif
 413 }
 414
 415 void QXcbWindow::setGeometry(const QRect &rect)
 416 {
 417     QPlatformWindow::setGeometry(rect);
 418
 419     propagateSizeHints();
 420     const QRect wmGeometry = windowToWmGeometry(rect);
 421
 422     const quint32 mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
 423     const qint32 values[] = {
 424         qBound<qint32>(-XCOORD_MAX, wmGeometry.x(),      XCOORD_MAX),
 425         qBound<qint32>(-XCOORD_MAX, wmGeometry.y(),      XCOORD_MAX),
 426         qBound<qint32>(1,           wmGeometry.width(),  XCOORD_MAX),
 427         qBound<qint32>(1,           wmGeometry.height(), XCOORD_MAX),
 428     };
 429
 430     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, reinterpret_cast<const quint32*>(values)));
 431
 432     xcb_flush(xcb_connection());
 433 }
 434
 435 QMargins QXcbWindow::frameMargins() const
 436 {
 437     if (m_dirtyFrameMargins) {
 438         xcb_window_t window = m_window;
 439         xcb_window_t parent = m_window;
 440
 441         bool foundRoot = false;
 442
 443         const QVector<xcb_window_t> &virtualRoots =
 444             connection()->wmSupport()->virtualRoots();
 445
 446         while (!foundRoot) {
 447             xcb_query_tree_cookie_t cookie = xcb_query_tree_unchecked(xcb_connection(), parent);
 448
 449             xcb_query_tree_reply_t *reply = xcb_query_tree_reply(xcb_connection(), cookie, NULL);
 450             if (reply) {
 451                 if (reply->root == reply->parent || virtualRoots.indexOf(reply->parent) != -1) {
 452                     foundRoot = true;
 453                 } else {
 454                     window = parent;
 455                     parent = reply->parent;
 456                 }
 457
 458                 free(reply);
 459             } else {
 460                 m_dirtyFrameMargins = false;
 461                 m_frameMargins = QMargins();
 462                 return m_frameMargins;
 463             }
 464         }
 465
 466         QPoint offset;
 467
 468         xcb_translate_coordinates_reply_t *reply =
 469             xcb_translate_coordinates_reply(
 470                 xcb_connection(),
 471                 xcb_translate_coordinates(xcb_connection(), window, parent, 0, 0),
 472                 NULL);
 473
 474         if (reply) {
 475             offset = QPoint(reply->dst_x, reply->dst_y);
 476             free(reply);
 477         }
 478
 479         xcb_get_geometry_reply_t *geom =
 480             xcb_get_geometry_reply(
 481                 xcb_connection(),
 482                 xcb_get_geometry(xcb_connection(), parent),
 483                 NULL);
 484
 485         if (geom) {
 486             // --
 487             // add the border_width for the window managers frame... some window managers
 488             // do not use a border_width of zero for their frames, and if we the left and
 489             // top strut, we ensure that pos() is absolutely correct.  frameGeometry()
 490             // will still be incorrect though... perhaps i should have foffset as well, to
 491             // indicate the frame offset (equal to the border_width on X).
 492             // - Brad
 493             // -- copied from qwidget_x11.cpp
 494
 495             int left = offset.x() + geom->border_width;
 496             int top = offset.y() + geom->border_width;
 497             int right = geom->width + geom->border_width - geometry().width() - offset.x();
 498             int bottom = geom->height + geom->border_width - geometry().height() - offset.y();
 499
 500             m_frameMargins = QMargins(left, top, right, bottom);
 501
 502             free(geom);
 503         }
 504
 505         m_dirtyFrameMargins = false;
 506     }
 507
 508     return m_frameMargins;
 509 }
 510
 511 void QXcbWindow::setVisible(bool visible)
 512 {
 513     if (visible)
 514         show();
 515     else
 516         hide();
 517 }
 518
 519 void QXcbWindow::show()
 520 {
 521     if (window()->isTopLevel()) {
 522         xcb_get_property_cookie_t cookie = xcb_get_wm_hints_unchecked(xcb_connection(), m_window);
 523
 524         xcb_wm_hints_t hints;
 525         xcb_get_wm_hints_reply(xcb_connection(), cookie, &hints, NULL);
 526
 527         if (window()->windowState() & Qt::WindowMinimized)
 528             xcb_wm_hints_set_iconic(&hints);
 529         else
 530             xcb_wm_hints_set_normal(&hints);
 531
 532         xcb_wm_hints_set_input(&hints, !(window()->windowFlags() & Qt::WindowDoesNotAcceptFocus));
 533
 534         xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 535
 536         // update WM_NORMAL_HINTS
 537         propagateSizeHints();
 538
 539         // update WM_TRANSIENT_FOR
 540         if (window()->transientParent() && isTransient(window())) {
 541             QXcbWindow *transientXcbParent = static_cast<QXcbWindow *>(window()->transientParent()->handle());
 542             if (transientXcbParent) {
 543                 // ICCCM 4.1.2.6
 544                 xcb_window_t parentWindow = transientXcbParent->xcb_window();
 545
 546                 // todo: set transient for group (wm_client_leader) if no parent, a la qwidget_x11.cpp
 547                 Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 548                                                XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, 32,
 549                                                1, &parentWindow));
 550             }
 551         }
 552
 553         // update _MOTIF_WM_HINTS
 554         updateMotifWmHintsBeforeMap();
 555
 556         // update _NET_WM_STATE
 557         updateNetWmStateBeforeMap();
 558     }
 559
 560     if (connection()->time() != XCB_TIME_CURRENT_TIME)
 561         updateNetWmUserTime(connection()->time());
 562
 563     Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 564     xcb_flush(xcb_connection());
 565
 566     connection()->sync();
 567 }
 568
 569 void QXcbWindow::hide()
 570 {
 571     Q_XCB_CALL(xcb_unmap_window(xcb_connection(), m_window));
 572
 573     // send synthetic UnmapNotify event according to icccm 4.1.4
 574     xcb_unmap_notify_event_t event;
 575     event.response_type = XCB_UNMAP_NOTIFY;
 576     event.event = m_screen->root();
 577     event.window = m_window;
 578     event.from_configure = false;
 579     Q_XCB_CALL(xcb_send_event(xcb_connection(), false, m_screen->root(),
 580                               XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&event));
 581
 582     xcb_flush(xcb_connection());
 583
 584     m_mapped = false;
 585 }
 586
 587 struct QtMotifWmHints {
 588     quint32 flags, functions, decorations;
 589     qint32 input_mode;
 590     quint32 status;
 591 };
 592
 593 enum {
 594     MWM_HINTS_FUNCTIONS   = (1L << 0),
 595
 596     MWM_FUNC_ALL      = (1L << 0),
 597     MWM_FUNC_RESIZE   = (1L << 1),
 598     MWM_FUNC_MOVE     = (1L << 2),
 599     MWM_FUNC_MINIMIZE = (1L << 3),
 600     MWM_FUNC_MAXIMIZE = (1L << 4),
 601     MWM_FUNC_CLOSE    = (1L << 5),
 602
 603     MWM_HINTS_DECORATIONS = (1L << 1),
 604
 605     MWM_DECOR_ALL      = (1L << 0),
 606     MWM_DECOR_BORDER   = (1L << 1),
 607     MWM_DECOR_RESIZEH  = (1L << 2),
 608     MWM_DECOR_TITLE    = (1L << 3),
 609     MWM_DECOR_MENU     = (1L << 4),
 610     MWM_DECOR_MINIMIZE = (1L << 5),
 611     MWM_DECOR_MAXIMIZE = (1L << 6),
 612
 613     MWM_HINTS_INPUT_MODE = (1L << 2),
 614
 615     MWM_INPUT_MODELESS                  = 0L,
 616     MWM_INPUT_PRIMARY_APPLICATION_MODAL = 1L,
 617     MWM_INPUT_FULL_APPLICATION_MODAL    = 3L
 618 };
 619
 620 static QtMotifWmHints getMotifWmHints(QXcbConnection *c, xcb_window_t window)
 621 {
 622     QtMotifWmHints hints;
 623
 624     xcb_get_property_cookie_t get_cookie =
 625         xcb_get_property_unchecked(c->xcb_connection(), 0, window, c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 626                          c->atom(QXcbAtom::_MOTIF_WM_HINTS), 0, 20);
 627
 628     xcb_get_property_reply_t *reply =
 629         xcb_get_property_reply(c->xcb_connection(), get_cookie, NULL);
 630
 631     if (reply && reply->format == 32 && reply->type == c->atom(QXcbAtom::_MOTIF_WM_HINTS)) {
 632         hints = *((QtMotifWmHints *)xcb_get_property_value(reply));
 633     } else {
 634         hints.flags = 0L;
 635         hints.functions = MWM_FUNC_ALL;
 636         hints.decorations = MWM_DECOR_ALL;
 637         hints.input_mode = 0L;
 638         hints.status = 0L;
 639     }
 640
 641     free(reply);
 642
 643     return hints;
 644 }
 645
 646 static void setMotifWmHints(QXcbConnection *c, xcb_window_t window, const QtMotifWmHints &hints)
 647 {
 648     if (hints.flags != 0l) {
 649         Q_XCB_CALL2(xcb_change_property(c->xcb_connection(),
 650                                        XCB_PROP_MODE_REPLACE,
 651                                        window,
 652                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 653                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 654                                        32,
 655                                        5,
 656                                        &hints), c);
 657     } else {
 658         Q_XCB_CALL2(xcb_delete_property(c->xcb_connection(), window, c->atom(QXcbAtom::_MOTIF_WM_HINTS)), c);
 659     }
 660 }
 661
 662 QXcbWindow::NetWmStates QXcbWindow::netWmStates()
 663 {
 664     NetWmStates result(0);
 665
 666     xcb_get_property_cookie_t get_cookie =
 667         xcb_get_property_unchecked(xcb_connection(), 0, m_window, atom(QXcbAtom::_NET_WM_STATE),
 668                          XCB_ATOM_ATOM, 0, 1024);
 669
 670     xcb_get_property_reply_t *reply =
 671         xcb_get_property_reply(xcb_connection(), get_cookie, NULL);
 672
 673     if (reply && reply->format == 32 && reply->type == XCB_ATOM_ATOM) {
 674         const xcb_atom_t *states = static_cast<const xcb_atom_t *>(xcb_get_property_value(reply));
 675         const xcb_atom_t *statesEnd = states + reply->length;
 676         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_ABOVE)))
 677             result |= NetWmStateAbove;
 678         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_BELOW)))
 679             result |= NetWmStateBelow;
 680         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN)))
 681             result |= NetWmStateFullScreen;
 682         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ)))
 683             result |= NetWmStateMaximizedHorz;
 684         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT)))
 685             result |= NetWmStateMaximizedVert;
 686         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MODAL)))
 687             result |= NetWmStateModal;
 688         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP)))
 689             result |= NetWmStateStaysOnTop;
 690         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_DEMANDS_ATTENTION)))
 691             result |= NetWmStateDemandsAttention;
 692         free(reply);
 693     } else {
 694 #ifdef NET_WM_STATE_DEBUG
 695         printf("getting net wm state (%x), empty\n", m_window);
 696 #endif
 697     }
 698
 699     return result;
 700 }
 701
 702 void QXcbWindow::setNetWmStates(NetWmStates states)
 703 {
 704     QVector<xcb_atom_t> atoms;
 705     if (states & NetWmStateAbove)
 706         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_ABOVE));
 707     if (states & NetWmStateBelow)
 708         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_BELOW));
 709     if (states & NetWmStateFullScreen)
 710         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 711     if (states & NetWmStateMaximizedHorz)
 712         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ));
 713     if (states & NetWmStateMaximizedVert)
 714         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 715     if (states & NetWmStateModal)
 716         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MODAL));
 717     if (states & NetWmStateStaysOnTop)
 718         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP));
 719     if (states & NetWmStateDemandsAttention)
 720         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_DEMANDS_ATTENTION));
 721
 722     if (atoms.isEmpty()) {
 723         Q_XCB_CALL(xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_STATE)));
 724     } else {
 725         Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 726                                        atom(QXcbAtom::_NET_WM_STATE), XCB_ATOM_ATOM, 32,
 727                                        atoms.count(), atoms.constData()));
 728     }
 729     xcb_flush(xcb_connection());
 730 }
 731
 732 Qt::WindowFlags QXcbWindow::setWindowFlags(Qt::WindowFlags flags)
 733 {
 734     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 735
 736     if (type == Qt::ToolTip)
 737         flags |= Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint;
 738     if (type == Qt::Popup)
 739         flags |= Qt::X11BypassWindowManagerHint;
 740
 741     if (flags & Qt::WindowTransparentForInput) {
 742         uint32_t mask = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_VISIBILITY_CHANGE
 743                  | XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_RESIZE_REDIRECT
 744                 | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT
 745                 | XCB_EVENT_MASK_FOCUS_CHANGE  | XCB_EVENT_MASK_PROPERTY_CHANGE
 746                 | XCB_EVENT_MASK_COLOR_MAP_CHANGE | XCB_EVENT_MASK_OWNER_GRAB_BUTTON;
 747         xcb_change_window_attributes(xcb_connection(), xcb_window(), XCB_CW_EVENT_MASK, &mask);
 748     }
 749
 750     setNetWmWindowFlags(flags);
 751     setMotifWindowFlags(flags);
 752
 753     setTransparentForMouseEvents(flags & Qt::WindowTransparentForInput);
 754     updateDoesNotAcceptFocus(flags & Qt::WindowDoesNotAcceptFocus);
 755
 756     return flags;
 757 }
 758
 759 void QXcbWindow::setMotifWindowFlags(Qt::WindowFlags flags)
 760 {
 761     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 762
 763     QtMotifWmHints mwmhints;
 764     mwmhints.flags = 0L;
 765     mwmhints.functions = 0L;
 766     mwmhints.decorations = 0;
 767     mwmhints.input_mode = 0L;
 768     mwmhints.status = 0L;
 769
 770     if (type != Qt::SplashScreen) {
 771         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 772
 773         bool customize = flags & Qt::CustomizeWindowHint;
 774         if (!(flags & Qt::FramelessWindowHint) && !(customize && !(flags & Qt::WindowTitleHint))) {
 775             mwmhints.decorations |= MWM_DECOR_BORDER;
 776             mwmhints.decorations |= MWM_DECOR_RESIZEH;
 777
 778             if (flags & Qt::WindowTitleHint)
 779                 mwmhints.decorations |= MWM_DECOR_TITLE;
 780
 781             if (flags & Qt::WindowSystemMenuHint)
 782                 mwmhints.decorations |= MWM_DECOR_MENU;
 783
 784             if (flags & Qt::WindowMinimizeButtonHint) {
 785                 mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 786                 mwmhints.functions |= MWM_FUNC_MINIMIZE;
 787             }
 788
 789             if (flags & Qt::WindowMaximizeButtonHint) {
 790                 mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 791                 mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 792             }
 793
 794             if (flags & Qt::WindowCloseButtonHint)
 795                 mwmhints.functions |= MWM_FUNC_CLOSE;
 796         }
 797     } else {
 798         // if type == Qt::SplashScreen
 799         mwmhints.decorations = MWM_DECOR_ALL;
 800     }
 801
 802     if (mwmhints.functions != 0) {
 803         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 804         mwmhints.functions |= MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 805     } else {
 806         mwmhints.functions = MWM_FUNC_ALL;
 807     }
 808
 809     if (!(flags & Qt::FramelessWindowHint)
 810         && flags & Qt::CustomizeWindowHint
 811         && flags & Qt::WindowTitleHint
 812         && !(flags &
 813              (Qt::WindowMinimizeButtonHint
 814               | Qt::WindowMaximizeButtonHint
 815               | Qt::WindowCloseButtonHint)))
 816     {
 817         // a special case - only the titlebar without any button
 818         mwmhints.flags = MWM_HINTS_FUNCTIONS;
 819         mwmhints.functions = MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 820         mwmhints.decorations = 0;
 821     }
 822
 823     setMotifWmHints(connection(), m_window, mwmhints);
 824 }
 825
 826 void QXcbWindow::changeNetWmState(bool set, xcb_atom_t one, xcb_atom_t two)
 827 {
 828     xcb_client_message_event_t event;
 829
 830     event.response_type = XCB_CLIENT_MESSAGE;
 831     event.format = 32;
 832     event.window = m_window;
 833     event.type = atom(QXcbAtom::_NET_WM_STATE);
 834     event.data.data32[0] = set ? 1 : 0;
 835     event.data.data32[1] = one;
 836     event.data.data32[2] = two;
 837     event.data.data32[3] = 0;
 838     event.data.data32[4] = 0;
 839
 840     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));
 841 }
 842
 843 Qt::WindowState QXcbWindow::setWindowState(Qt::WindowState state)
 844 {
 845     if (state == m_windowState)
 846         return state;
 847
 848     // unset old state
 849     switch (m_windowState) {
 850     case Qt::WindowMinimized:
 851         Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 852         break;
 853     case Qt::WindowMaximized:
 854         changeNetWmState(false,
 855                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 856                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 857         break;
 858     case Qt::WindowFullScreen:
 859         changeNetWmState(false, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 860         break;
 861     default:
 862         break;
 863     }
 864
 865     // set new state
 866     switch (state) {
 867     case Qt::WindowMinimized:
 868         {
 869             xcb_client_message_event_t event;
 870
 871             event.response_type = XCB_CLIENT_MESSAGE;
 872             event.format = 32;
 873             event.window = m_window;
 874             event.type = atom(QXcbAtom::WM_CHANGE_STATE);
 875             event.data.data32[0] = XCB_WM_STATE_ICONIC;
 876             event.data.data32[1] = 0;
 877             event.data.data32[2] = 0;
 878             event.data.data32[3] = 0;
 879             event.data.data32[4] = 0;
 880
 881             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));
 882         }
 883         break;
 884     case Qt::WindowMaximized:
 885         changeNetWmState(true,
 886                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 887                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 888         break;
 889     case Qt::WindowFullScreen:
 890         changeNetWmState(true, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 891         break;
 892     case Qt::WindowNoState:
 893         break;
 894     default:
 895         break;
 896     }
 897
 898     connection()->sync();
 899
 900     m_windowState = state;
 901     return m_windowState;
 902 }
 903
 904 void QXcbWindow::setNetWmWindowFlags(Qt::WindowFlags flags)
 905 {
 906     // in order of decreasing priority
 907     QVector<uint> windowTypes;
 908
 909     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 910
 911     switch (type) {
 912     case Qt::Dialog:
 913     case Qt::Sheet:
 914         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_DIALOG));
 915         break;
 916     case Qt::Tool:
 917     case Qt::Drawer:
 918         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_UTILITY));
 919         break;
 920     case Qt::ToolTip:
 921         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_TOOLTIP));
 922         break;
 923     case Qt::SplashScreen:
 924         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_SPLASH));
 925         break;
 926     default:
 927         break;
 928     }
 929
 930     if (flags & Qt::FramelessWindowHint)
 931         windowTypes.append(atom(QXcbAtom::_KDE_NET_WM_WINDOW_TYPE_OVERRIDE));
 932
 933     windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_NORMAL));
 934
 935     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 936                                    atom(QXcbAtom::_NET_WM_WINDOW_TYPE), XCB_ATOM_ATOM, 32,
 937                                    windowTypes.count(), windowTypes.constData()));
 938 }
 939
 940 void QXcbWindow::updateMotifWmHintsBeforeMap()
 941 {
 942     QtMotifWmHints mwmhints = getMotifWmHints(connection(), m_window);
 943
 944     if (window()->windowModality() != Qt::NonModal) {
 945         switch (window()->windowModality()) {
 946         case Qt::WindowModal:
 947             mwmhints.input_mode = MWM_INPUT_PRIMARY_APPLICATION_MODAL;
 948             break;
 949         case Qt::ApplicationModal:
 950         default:
 951             mwmhints.input_mode = MWM_INPUT_FULL_APPLICATION_MODAL;
 952             break;
 953         }
 954         mwmhints.flags |= MWM_HINTS_INPUT_MODE;
 955     } else {
 956         mwmhints.input_mode = MWM_INPUT_MODELESS;
 957         mwmhints.flags &= ~MWM_HINTS_INPUT_MODE;
 958     }
 959
 960     if (window()->minimumSize() == window()->maximumSize()) {
 961         // fixed size, remove the resize handle (since mwm/dtwm
 962         // isn't smart enough to do it itself)
 963         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 964         if (mwmhints.functions == MWM_FUNC_ALL) {
 965             mwmhints.functions = MWM_FUNC_MOVE;
 966         } else {
 967             mwmhints.functions &= ~MWM_FUNC_RESIZE;
 968         }
 969
 970         if (mwmhints.decorations == MWM_DECOR_ALL) {
 971             mwmhints.flags |= MWM_HINTS_DECORATIONS;
 972             mwmhints.decorations = (MWM_DECOR_BORDER
 973                                     | MWM_DECOR_TITLE
 974                                     | MWM_DECOR_MENU);
 975         } else {
 976             mwmhints.decorations &= ~MWM_DECOR_RESIZEH;
 977         }
 978     }
 979
 980     if (window()->windowFlags() & Qt::WindowMinimizeButtonHint) {
 981         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 982         mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 983         mwmhints.functions |= MWM_FUNC_MINIMIZE;
 984     }
 985     if (window()->windowFlags() & Qt::WindowMaximizeButtonHint) {
 986         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 987         mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 988         mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 989     }
 990     if (window()->windowFlags() & Qt::WindowCloseButtonHint)
 991         mwmhints.functions |= MWM_FUNC_CLOSE;
 992
 993     setMotifWmHints(connection(), m_window, mwmhints);
 994 }
 995
 996 void QXcbWindow::updateNetWmStateBeforeMap()
 997 {
 998     NetWmStates states(0);
 999
1000     const Qt::WindowFlags flags = window()->windowFlags();
1001     if (flags & Qt::WindowStaysOnTopHint) {
1002         states |= NetWmStateAbove;
1003         states |= NetWmStateStaysOnTop;
1004     } else if (flags & Qt::WindowStaysOnBottomHint) {
1005         states |= NetWmStateBelow;
1006     }
1007
1008     if (window()->windowState() & Qt::WindowFullScreen)
1009         states |= NetWmStateFullScreen;
1010
1011     if (window()->windowState() & Qt::WindowMaximized) {
1012         states |= NetWmStateMaximizedHorz;
1013         states |= NetWmStateMaximizedVert;
1014     }
1015
1016     if (window()->windowModality() != Qt::NonModal)
1017         states |= NetWmStateModal;
1018
1019     setNetWmStates(states);
1020 }
1021
1022 void QXcbWindow::updateNetWmUserTime(xcb_timestamp_t timestamp)
1023 {
1024     xcb_window_t wid = m_window;
1025
1026     const bool isSupportedByWM = connection()->wmSupport()->isSupportedByWM(atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
1027     if (m_netWmUserTimeWindow || isSupportedByWM) {
1028         if (!m_netWmUserTimeWindow) {
1029             m_netWmUserTimeWindow = xcb_generate_id(xcb_connection());
1030             Q_XCB_CALL(xcb_create_window(xcb_connection(),
1031                                          XCB_COPY_FROM_PARENT,            // depth -- same as root
1032                                          m_netWmUserTimeWindow,                        // window id
1033                                          m_window,                   // parent window id
1034                                          -1, -1, 1, 1,
1035                                          0,                               // border width
1036                                          XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
1037                                          m_visualId,                      // visual
1038                                          0,                               // value mask
1039                                          0));                             // value list
1040             wid = m_netWmUserTimeWindow;
1041             xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW),
1042                                 XCB_ATOM_WINDOW, 32, 1, &m_netWmUserTimeWindow);
1043             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME));
1044         } else if (!isSupportedByWM) {
1045             // WM no longer supports it, then we should remove the
1046             // _NET_WM_USER_TIME_WINDOW atom.
1047             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
1048             xcb_destroy_window(xcb_connection(), m_netWmUserTimeWindow);
1049             m_netWmUserTimeWindow = XCB_NONE;
1050         } else {
1051             wid = m_netWmUserTimeWindow;
1052         }
1053     }
1054     xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, wid, atom(QXcbAtom::_NET_WM_USER_TIME),
1055                         XCB_ATOM_CARDINAL, 32, 1, &timestamp);
1056 }
1057
1058 void QXcbWindow::setTransparentForMouseEvents(bool transparent)
1059 {
1060     if (transparent == m_transparent)
1061         return;
1062
1063     xcb_rectangle_t rectangle;
1064
1065     xcb_rectangle_t *rect = 0;
1066     int nrect = 0;
1067
1068     if (!transparent) {
1069         rectangle.x = 0;
1070         rectangle.y = 0;
1071         rectangle.width = geometry().width();
1072         rectangle.height = geometry().height();
1073         rect = &rectangle;
1074         nrect = 1;
1075     }
1076
1077     xcb_xfixes_region_t region = xcb_generate_id(xcb_connection());
1078     xcb_xfixes_create_region(xcb_connection(), region, nrect, rect);
1079     xcb_xfixes_set_window_shape_region_checked(xcb_connection(), m_window, XCB_SHAPE_SK_INPUT, 0, 0, region);
1080     xcb_xfixes_destroy_region(xcb_connection(), region);
1081
1082     m_transparent = transparent;
1083 }
1084
1085 void QXcbWindow::updateDoesNotAcceptFocus(bool doesNotAcceptFocus)
1086 {
1087     xcb_get_property_cookie_t cookie = xcb_get_wm_hints_unchecked(xcb_connection(), m_window);
1088
1089     xcb_wm_hints_t hints;
1090     if (!xcb_get_wm_hints_reply(xcb_connection(), cookie, &hints, NULL)) {
1091         return;
1092     }
1093
1094     xcb_wm_hints_set_input(&hints, !doesNotAcceptFocus);
1095     xcb_set_wm_hints(xcb_connection(), m_window, &hints);
1096 }
1097
1098 WId QXcbWindow::winId() const
1099 {
1100     return m_window;
1101 }
1102
1103 void QXcbWindow::setParent(const QPlatformWindow *parent)
1104 {
1105     // re-create for compatibility
1106     create();
1107
1108     QPoint topLeft = geometry().topLeft();
1109
1110     xcb_window_t xcb_parent_id = parent ? static_cast<const QXcbWindow *>(parent)->xcb_window() : m_screen->root();
1111     Q_XCB_CALL(xcb_reparent_window(xcb_connection(), xcb_window(), xcb_parent_id, topLeft.x(), topLeft.y()));
1112 }
1113
1114 void QXcbWindow::setWindowTitle(const QString &title)
1115 {
1116     QByteArray ba = title.toUtf8();
1117     Q_XCB_CALL(xcb_change_property(xcb_connection(),
1118                                    XCB_PROP_MODE_REPLACE,
1119                                    m_window,
1120                                    atom(QXcbAtom::_NET_WM_NAME),
1121                                    atom(QXcbAtom::UTF8_STRING),
1122                                    8,
1123                                    ba.length(),
1124                                    ba.constData()));
1125 }
1126
1127 void QXcbWindow::setWindowIcon(const QIcon &icon)
1128 {
1129     QVector<quint32> icon_data;
1130
1131     if (!icon.isNull()) {
1132         QList<QSize> availableSizes = icon.availableSizes();
1133         if (availableSizes.isEmpty()) {
1134             // try to use default sizes since the icon can be a scalable image like svg.
1135             availableSizes.push_back(QSize(16,16));
1136             availableSizes.push_back(QSize(32,32));
1137             availableSizes.push_back(QSize(64,64));
1138             availableSizes.push_back(QSize(128,128));
1139         }
1140         for (int i = 0; i < availableSizes.size(); ++i) {
1141             QSize size = availableSizes.at(i);
1142             QPixmap pixmap = icon.pixmap(size);
1143             if (!pixmap.isNull()) {
1144                 QImage image = pixmap.toImage().convertToFormat(QImage::Format_ARGB32);
1145                 int pos = icon_data.size();
1146                 icon_data.resize(pos + 2 + image.width()*image.height());
1147                 icon_data[pos++] = image.width();
1148                 icon_data[pos++] = image.height();
1149                 memcpy(icon_data.data() + pos, image.bits(), image.width()*image.height()*4);
1150             }
1151         }
1152     }
1153
1154     if (!icon_data.isEmpty()) {
1155         Q_XCB_CALL(xcb_change_property(xcb_connection(),
1156                                        XCB_PROP_MODE_REPLACE,
1157                                        m_window,
1158                                        atom(QXcbAtom::_NET_WM_ICON),
1159                                        atom(QXcbAtom::CARDINAL),
1160                                        32,
1161                                        icon_data.size(),
1162                                        (unsigned char *) icon_data.data()));
1163     } else {
1164         Q_XCB_CALL(xcb_delete_property(xcb_connection(),
1165                                        m_window,
1166                                        atom(QXcbAtom::_NET_WM_ICON)));
1167     }
1168 }
1169
1170 void QXcbWindow::raise()
1171 {
1172     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1173     const quint32 values[] = { XCB_STACK_MODE_ABOVE };
1174     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1175 }
1176
1177 void QXcbWindow::lower()
1178 {
1179     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1180     const quint32 values[] = { XCB_STACK_MODE_BELOW };
1181     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1182 }
1183
1184 // Adapt the geometry to match the WM expection with regards
1185 // to gravity.
1186 QRect QXcbWindow::windowToWmGeometry(QRect r) const
1187 {
1188     if (m_dirtyFrameMargins || m_frameMargins.isNull())
1189         return r;
1190     const bool frameInclusive = positionIncludesFrame(window());
1191     // XCB_GRAVITY_STATIC requires the inner geometry, whereas
1192     // XCB_GRAVITY_NORTH_WEST requires the frame geometry
1193     if (frameInclusive && m_gravity == XCB_GRAVITY_STATIC) {
1194         r.translate(m_frameMargins.left(), m_frameMargins.top());
1195     } else if (!frameInclusive && m_gravity == XCB_GRAVITY_NORTH_WEST) {
1196         r.translate(-m_frameMargins.left(), -m_frameMargins.top());
1197     }
1198     return r;
1199 }
1200
1201 void QXcbWindow::propagateSizeHints()
1202 {
1203     // update WM_NORMAL_HINTS
1204     xcb_size_hints_t hints;
1205     memset(&hints, 0, sizeof(hints));
1206
1207     const QRect rect = windowToWmGeometry(geometry());
1208
1209     QWindow *win = window();
1210
1211     xcb_size_hints_set_position(&hints, true, rect.x(), rect.y());
1212     xcb_size_hints_set_size(&hints, true, rect.width(), rect.height());
1213     xcb_size_hints_set_win_gravity(&hints, m_gravity);
1214
1215     QSize minimumSize = win->minimumSize();
1216     QSize maximumSize = win->maximumSize();
1217     QSize baseSize = win->baseSize();
1218     QSize sizeIncrement = win->sizeIncrement();
1219
1220     if (minimumSize.width() > 0 || minimumSize.height() > 0)
1221         xcb_size_hints_set_min_size(&hints, minimumSize.width(), minimumSize.height());
1222
1223     if (maximumSize.width() < QWINDOWSIZE_MAX || maximumSize.height() < QWINDOWSIZE_MAX)
1224         xcb_size_hints_set_max_size(&hints,
1225                                     qMin(XCOORD_MAX, maximumSize.width()),
1226                                     qMin(XCOORD_MAX, maximumSize.height()));
1227
1228     if (sizeIncrement.width() > 0 || sizeIncrement.height() > 0) {
1229         xcb_size_hints_set_base_size(&hints, baseSize.width(), baseSize.height());
1230         xcb_size_hints_set_resize_inc(&hints, sizeIncrement.width(), sizeIncrement.height());
1231     }
1232
1233     xcb_set_wm_normal_hints(xcb_connection(), m_window, &hints);
1234 }
1235
1236 void QXcbWindow::requestActivateWindow()
1237 {
1238     if (!m_mapped) {
1239         m_deferredActivation = true;
1240         return;
1241     }
1242     m_deferredActivation = false;
1243
1244     updateNetWmUserTime(connection()->time());
1245
1246     if (window()->isTopLevel()
1247         && connection()->wmSupport()->isSupportedByWM(atom(QXcbAtom::_NET_ACTIVE_WINDOW))) {
1248         xcb_client_message_event_t event;
1249
1250         event.response_type = XCB_CLIENT_MESSAGE;
1251         event.format = 32;
1252         event.window = m_window;
1253         event.type = atom(QXcbAtom::_NET_ACTIVE_WINDOW);
1254         event.data.data32[0] = 1;
1255         event.data.data32[1] = connection()->time();
1256         QWindow *focusWindow = QGuiApplication::focusWindow();
1257         event.data.data32[2] = focusWindow ? focusWindow->winId() : XCB_NONE;
1258         event.data.data32[3] = 0;
1259         event.data.data32[4] = 0;
1260
1261         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));
1262     } else {
1263         Q_XCB_CALL(xcb_set_input_focus(xcb_connection(), XCB_INPUT_FOCUS_PARENT, m_window, connection()->time()));
1264     }
1265
1266     connection()->sync();
1267 }
1268
1269 #if XCB_USE_MAEMO_WINDOW_PROPERTIES
1270 void QXcbWindow::handleContentOrientationChange(Qt::ScreenOrientation orientation)
1271 {
1272     int angle = 0;
1273     switch (orientation) {
1274         case Qt::PortraitOrientation: angle = 270; break;
1275         case Qt::LandscapeOrientation: angle = 0; break;
1276         case Qt::InvertedPortraitOrientation: angle = 90; break;
1277         case Qt::InvertedLandscapeOrientation: angle = 180; break;
1278         case Qt::PrimaryOrientation: break;
1279     }
1280     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
1281                                    atom(QXcbAtom::MeegoTouchOrientationAngle), XCB_ATOM_CARDINAL, 32,
1282                                    1, &angle));
1283 }
1284 #endif
1285
1286 QSurfaceFormat QXcbWindow::format() const
1287 {
1288     // ### return actual format
1289     return m_format;
1290 }
1291
1292 #if defined(XCB_USE_EGL)
1293 QXcbEGLSurface *QXcbWindow::eglSurface() const
1294 {
1295     if (!m_eglSurface) {
1296         EGLDisplay display = connection()->egl_display();
1297         EGLConfig config = q_configFromGLFormat(display, window()->requestedFormat(), true);
1298         EGLSurface surface = eglCreateWindowSurface(display, config, (EGLNativeWindowType)m_window, 0);
1299
1300         m_eglSurface = new QXcbEGLSurface(display, surface);
1301     }
1302
1303     return m_eglSurface;
1304 }
1305 #endif
1306
1307 void QXcbWindow::handleExposeEvent(const xcb_expose_event_t *event)
1308 {
1309     QRect rect(event->x, event->y, event->width, event->height);
1310
1311     if (m_exposeRegion.isEmpty())
1312         m_exposeRegion = rect;
1313     else
1314         m_exposeRegion |= rect;
1315
1316     // if count is non-zero there are more expose events pending
1317     if (event->count == 0) {
1318         QWindowSystemInterface::handleExposeEvent(window(), m_exposeRegion);
1319         m_exposeRegion = QRegion();
1320     }
1321 }
1322
1323 void QXcbWindow::handleClientMessageEvent(const xcb_client_message_event_t *event)
1324 {
1325     if (event->format != 32)
1326         return;
1327
1328     if (event->type == atom(QXcbAtom::WM_PROTOCOLS)) {
1329         if (event->data.data32[0] == atom(QXcbAtom::WM_DELETE_WINDOW)) {
1330             QWindowSystemInterface::handleCloseEvent(window());
1331         } else if (event->data.data32[0] == atom(QXcbAtom::WM_TAKE_FOCUS)) {
1332             connection()->setTime(event->data.data32[1]);
1333         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_PING)) {
1334             xcb_client_message_event_t reply = *event;
1335
1336             reply.response_type = XCB_CLIENT_MESSAGE;
1337             reply.window = m_screen->root();
1338
1339             xcb_send_event(xcb_connection(), 0, m_screen->root(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&reply);
1340             xcb_flush(xcb_connection());
1341         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_SYNC_REQUEST)) {
1342             connection()->setTime(event->data.data32[1]);
1343             m_syncValue.lo = event->data.data32[2];
1344             m_syncValue.hi = event->data.data32[3];
1345         } else {
1346             qWarning() << "QXcbWindow: Unhandled WM_PROTOCOLS message:" << connection()->atomName(event->data.data32[0]);
1347         }
1348 #ifndef QT_NO_DRAGANDDROP
1349     } else if (event->type == atom(QXcbAtom::XdndEnter)) {
1350         connection()->drag()->handleEnter(window(), event);
1351     } else if (event->type == atom(QXcbAtom::XdndPosition)) {
1352         connection()->drag()->handlePosition(window(), event);
1353     } else if (event->type == atom(QXcbAtom::XdndLeave)) {
1354         connection()->drag()->handleLeave(window(), event);
1355     } else if (event->type == atom(QXcbAtom::XdndDrop)) {
1356         connection()->drag()->handleDrop(window(), event);
1357 #endif
1358     } else if (event->type == atom(QXcbAtom::_XEMBED)) { // QSystemTrayIcon
1359     } else {
1360         qWarning() << "QXcbWindow: Unhandled client message:" << connection()->atomName(event->type);
1361     }
1362 }
1363
1364 void QXcbWindow::handleConfigureNotifyEvent(const xcb_configure_notify_event_t *event)
1365 {
1366     bool fromSendEvent = (event->response_type & 0x80);
1367     QPoint pos(event->x, event->y);
1368     if (!parent() && !fromSendEvent) {
1369         // Do not trust the position, query it instead.
1370         xcb_translate_coordinates_cookie_t cookie = xcb_translate_coordinates(xcb_connection(), xcb_window(),
1371                                                                               m_screen->root(), 0, 0);
1372         xcb_translate_coordinates_reply_t *reply = xcb_translate_coordinates_reply(xcb_connection(), cookie, NULL);
1373         if (reply) {
1374             pos.setX(reply->dst_x);
1375             pos.setY(reply->dst_y);
1376             free(reply);
1377         }
1378     }
1379
1380     QRect rect(pos, QSize(event->width, event->height));
1381
1382     QPlatformWindow::setGeometry(rect);
1383     QWindowSystemInterface::handleGeometryChange(window(), rect);
1384
1385     m_configureNotifyPending = false;
1386
1387     if (m_deferredExpose) {
1388         m_deferredExpose = false;
1389         QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
1390     }
1391
1392     m_dirtyFrameMargins = true;
1393
1394 #if XCB_USE_DRI2
1395     if (m_context)
1396         static_cast<QDri2Context *>(m_context)->resize(rect.size());
1397 #endif
1398 }
1399
1400 bool QXcbWindow::isExposed() const
1401 {
1402     return m_mapped;
1403 }
1404
1405 void QXcbWindow::handleMapNotifyEvent(const xcb_map_notify_event_t *event)
1406 {
1407     if (event->window == m_window) {
1408         m_mapped = true;
1409         if (m_deferredActivation)
1410             requestActivateWindow();
1411         if (m_configureNotifyPending)
1412             m_deferredExpose = true;
1413         else
1414             QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
1415     }
1416 }
1417
1418 void QXcbWindow::handleUnmapNotifyEvent(const xcb_unmap_notify_event_t *event)
1419 {
1420     if (event->window == m_window) {
1421         m_mapped = false;
1422         QWindowSystemInterface::handleExposeEvent(window(), QRegion());
1423     }
1424 }
1425
1426 static Qt::MouseButtons translateMouseButtons(int s)
1427 {
1428     Qt::MouseButtons ret = 0;
1429     if (s & XCB_BUTTON_MASK_1)
1430         ret |= Qt::LeftButton;
1431     if (s & XCB_BUTTON_MASK_2)
1432         ret |= Qt::MidButton;
1433     if (s & XCB_BUTTON_MASK_3)
1434         ret |= Qt::RightButton;
1435     return ret;
1436 }
1437
1438 static Qt::MouseButton translateMouseButton(xcb_button_t s)
1439 {
1440     switch (s) {
1441     case 1: return Qt::LeftButton;
1442     case 2: return Qt::MidButton;
1443     case 3: return Qt::RightButton;
1444     // Button values 4-7 were already handled as Wheel events, and won't occur here.
1445     case 8: return Qt::BackButton;      // Also known as Qt::ExtraButton1
1446     case 9: return Qt::ForwardButton;   // Also known as Qt::ExtraButton2
1447     case 10: return Qt::ExtraButton3;
1448     case 11: return Qt::ExtraButton4;
1449     case 12: return Qt::ExtraButton5;
1450     case 13: return Qt::ExtraButton6;
1451     case 14: return Qt::ExtraButton7;
1452     case 15: return Qt::ExtraButton8;
1453     case 16: return Qt::ExtraButton9;
1454     case 17: return Qt::ExtraButton10;
1455     case 18: return Qt::ExtraButton11;
1456     case 19: return Qt::ExtraButton12;
1457     case 20: return Qt::ExtraButton13;
1458     case 21: return Qt::ExtraButton14;
1459     case 22: return Qt::ExtraButton15;
1460     case 23: return Qt::ExtraButton16;
1461     case 24: return Qt::ExtraButton17;
1462     case 25: return Qt::ExtraButton18;
1463     case 26: return Qt::ExtraButton19;
1464     case 27: return Qt::ExtraButton20;
1465     case 28: return Qt::ExtraButton21;
1466     case 29: return Qt::ExtraButton22;
1467     case 30: return Qt::ExtraButton23;
1468     case 31: return Qt::ExtraButton24;
1469     default: return Qt::NoButton;
1470     }
1471 }
1472
1473 void QXcbWindow::handleButtonPressEvent(const xcb_button_press_event_t *event)
1474 {
1475     updateNetWmUserTime(event->time);
1476
1477     QPoint local(event->event_x, event->event_y);
1478     QPoint global(event->root_x, event->root_y);
1479
1480     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1481
1482     if (event->detail >= 4 && event->detail <= 7) {
1483         // Logic borrowed from qapplication_x11.cpp
1484         int delta = 120 * ((event->detail == 4 || event->detail == 6) ? 1 : -1);
1485         bool hor = (((event->detail == 4 || event->detail == 5)
1486                      && (modifiers & Qt::AltModifier))
1487                     || (event->detail == 6 || event->detail == 7));
1488
1489         QWindowSystemInterface::handleWheelEvent(window(), event->time,
1490                                                  local, global, delta, hor ? Qt::Horizontal : Qt::Vertical, modifiers);
1491         return;
1492     }
1493
1494     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1495 }
1496
1497 void QXcbWindow::handleButtonReleaseEvent(const xcb_button_release_event_t *event)
1498 {
1499     QPoint local(event->event_x, event->event_y);
1500     QPoint global(event->root_x, event->root_y);
1501     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1502
1503     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1504 }
1505
1506 void QXcbWindow::handleMotionNotifyEvent(const xcb_motion_notify_event_t *event)
1507 {
1508     QPoint local(event->event_x, event->event_y);
1509     QPoint global(event->root_x, event->root_y);
1510     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1511
1512     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1513 }
1514
1515 void QXcbWindow::handleMouseEvent(xcb_button_t detail, uint16_t state, xcb_timestamp_t time, const QPoint &local, const QPoint &global, Qt::KeyboardModifiers modifiers)
1516 {
1517     connection()->setTime(time);
1518
1519     Qt::MouseButtons buttons = translateMouseButtons(state);
1520     Qt::MouseButton button = translateMouseButton(detail);
1521
1522     buttons ^= button; // X event uses state *before*, Qt uses state *after*
1523
1524     QWindowSystemInterface::handleMouseEvent(window(), time, local, global, buttons, modifiers);
1525 }
1526
1527 void QXcbWindow::handleEnterNotifyEvent(const xcb_enter_notify_event_t *event)
1528 {
1529     connection()->setTime(event->time);
1530
1531     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1532         || event->detail == XCB_NOTIFY_DETAIL_VIRTUAL
1533         || event->detail == XCB_NOTIFY_DETAIL_NONLINEAR_VIRTUAL)
1534     {
1535         return;
1536     }
1537
1538     QWindowSystemInterface::handleEnterEvent(window());
1539 }
1540
1541 void QXcbWindow::handleLeaveNotifyEvent(const xcb_leave_notify_event_t *event)
1542 {
1543     connection()->setTime(event->time);
1544
1545     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1546         || event->detail == XCB_NOTIFY_DETAIL_INFERIOR)
1547     {
1548         return;
1549     }
1550
1551     QWindowSystemInterface::handleLeaveEvent(window());
1552 }
1553
1554 void QXcbWindow::handlePropertyNotifyEvent(const xcb_property_notify_event_t *event)
1555 {
1556     connection()->setTime(event->time);
1557
1558     const bool propertyDeleted = event->state == XCB_PROPERTY_DELETE;
1559     const xcb_atom_t netWmStateAtom = atom(QXcbAtom::_NET_WM_STATE);
1560     const xcb_atom_t wmStateAtom = atom(QXcbAtom::WM_STATE);
1561
1562     if (event->atom == netWmStateAtom || event->atom == wmStateAtom) {
1563         if (propertyDeleted)
1564             return;
1565
1566         Qt::WindowState newState = Qt::WindowNoState;
1567         if (event->atom == wmStateAtom) { // WM_STATE: Quick check for 'Minimize'.
1568             const xcb_get_property_cookie_t get_cookie =
1569                 xcb_get_property(xcb_connection(), 0, m_window, wmStateAtom,
1570                                  XCB_ATOM_ANY, 0, 1024);
1571
1572             xcb_get_property_reply_t *reply =
1573                 xcb_get_property_reply(xcb_connection(), get_cookie, NULL);
1574
1575             if (reply && reply->format == 32 && reply->type == wmStateAtom) {
1576                 const long *data = (const long *)xcb_get_property_value(reply);
1577                 if (reply->length != 0 && XCB_WM_STATE_ICONIC == data[0])
1578                     newState = Qt::WindowMinimized;
1579                 free(reply);
1580             }
1581         } // WM_STATE: Quick check for 'Minimize'.
1582         if (newState != Qt::WindowMinimized) { // Something else changed, get _NET_WM_STATE.
1583             const NetWmStates states = netWmStates();
1584             if ((states & NetWmStateMaximizedHorz) && (states & NetWmStateMaximizedVert))
1585                 newState = Qt::WindowMaximized;
1586             else if (states & NetWmStateFullScreen)
1587                 newState = Qt::WindowFullScreen;
1588         }
1589         // Send Window state, compress events in case other flags (modality, etc) are changed.
1590         if (m_lastWindowStateEvent != newState) {
1591             QWindowSystemInterface::handleWindowStateChanged(window(), newState);
1592             m_lastWindowStateEvent = newState;
1593         }
1594     }
1595 }
1596
1597 void QXcbWindow::handleFocusInEvent(const xcb_focus_in_event_t *)
1598 {
1599     QWindowSystemInterface::handleWindowActivated(window());
1600 }
1601
1602 static bool focusInPeeker(xcb_generic_event_t *event)
1603 {
1604     if (!event) {
1605         // FocusIn event is not in the queue, proceed with FocusOut normally.
1606         QWindowSystemInterface::handleWindowActivated(0);
1607         return true;
1608     }
1609     uint response_type = event->response_type & ~0x80;
1610     return response_type == XCB_FOCUS_IN;
1611 }
1612
1613 void QXcbWindow::handleFocusOutEvent(const xcb_focus_out_event_t *)
1614 {
1615     // Do not set the active window to 0 if there is a FocusIn coming.
1616     // There is however no equivalent for XPutBackEvent so register a
1617     // callback for QXcbConnection instead.
1618     connection()->addPeekFunc(focusInPeeker);
1619 }
1620
1621 void QXcbWindow::updateSyncRequestCounter()
1622 {
1623     if (m_screen->syncRequestSupported() && (m_syncValue.lo != 0 || m_syncValue.hi != 0)) {
1624         Q_XCB_CALL(xcb_sync_set_counter(xcb_connection(), m_syncCounter, m_syncValue));
1625         xcb_flush(xcb_connection());
1626         connection()->sync();
1627
1628         m_syncValue.lo = 0;
1629         m_syncValue.hi = 0;
1630     }
1631 }
1632
1633 bool QXcbWindow::setKeyboardGrabEnabled(bool grab)
1634 {
1635     if (!grab) {
1636         xcb_ungrab_keyboard(xcb_connection(), XCB_TIME_CURRENT_TIME);
1637         return true;
1638     }
1639     xcb_grab_keyboard_cookie_t cookie = xcb_grab_keyboard(xcb_connection(), false,
1640                                                           m_window, XCB_TIME_CURRENT_TIME,
1641                                                           XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
1642     xcb_grab_keyboard_reply_t *reply = xcb_grab_keyboard_reply(xcb_connection(), cookie, NULL);
1643     bool result = !(!reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1644     free(reply);
1645     return result;
1646 }
1647
1648 bool QXcbWindow::setMouseGrabEnabled(bool grab)
1649 {
1650     if (!grab) {
1651         xcb_ungrab_pointer(xcb_connection(), XCB_TIME_CURRENT_TIME);
1652         return true;
1653     }
1654     xcb_grab_pointer_cookie_t cookie = xcb_grab_pointer(xcb_connection(), false, m_window,
1655                                                         (XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE
1656                                                          | XCB_EVENT_MASK_BUTTON_MOTION | XCB_EVENT_MASK_ENTER_WINDOW
1657                                                          | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_POINTER_MOTION),
1658                                                         XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC,
1659                                                         XCB_WINDOW_NONE, XCB_CURSOR_NONE,
1660                                                         XCB_TIME_CURRENT_TIME);
1661     xcb_grab_pointer_reply_t *reply = xcb_grab_pointer_reply(xcb_connection(), cookie, NULL);
1662     bool result = !(!reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1663     free(reply);
1664     return result;
1665 }
1666
1667 void QXcbWindow::setCursor(xcb_cursor_t cursor)
1668 {
1669     xcb_change_window_attributes(xcb_connection(), m_window, XCB_CW_CURSOR, &cursor);
1670     xcb_flush(xcb_connection());
1671 }
1672
1673 QT_END_NAMESPACE