src/plugins/platforms/xcb/qxcbwindow.cpp

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  22 ** Alternatively, this file may be used under the terms of the GNU General
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  41
  42 #include "qxcbwindow.h"
  43
  44 #include <QtDebug>
  45 #include <QScreen>
  46 #include <QtGui/QIcon>
  47 #include <QtGui/QRegion>
  48
  49 #include "qxcbconnection.h"
  50 #include "qxcbscreen.h"
  51 #include "qxcbdrag.h"
  52 #include "qxcbkeyboard.h"
  53 #include "qxcbwmsupport.h"
  54 #include "qxcbimage.h"
  55
  56 #include <qpa/qplatformintegration.h>
  57
  58 #ifdef XCB_USE_DRI2
  59 #include "qdri2context.h"
  60 #endif
  61
  62 // FIXME This workaround can be removed for xcb-icccm > 3.8
  63 #define class class_name
  64 #include <xcb/xcb_icccm.h>
  65 #undef class
  66 #include <xcb/xfixes.h>
  67 #ifndef QT_NO_SHAPE
  68 #  include <xcb/shape.h>
  69 #endif // QT_NO_SHAPE
  70
  71 // xcb-icccm 3.8 support
  72 #ifdef XCB_ICCCM_NUM_WM_SIZE_HINTS_ELEMENTS
  73 #define xcb_get_wm_hints_reply xcb_icccm_get_wm_hints_reply
  74 #define xcb_get_wm_hints xcb_icccm_get_wm_hints
  75 #define xcb_get_wm_hints_unchecked xcb_icccm_get_wm_hints_unchecked
  76 #define xcb_set_wm_hints xcb_icccm_set_wm_hints
  77 #define xcb_set_wm_normal_hints xcb_icccm_set_wm_normal_hints
  78 #define xcb_size_hints_set_base_size xcb_icccm_size_hints_set_base_size
  79 #define xcb_size_hints_set_max_size xcb_icccm_size_hints_set_max_size
  80 #define xcb_size_hints_set_min_size xcb_icccm_size_hints_set_min_size
  81 #define xcb_size_hints_set_position xcb_icccm_size_hints_set_position
  82 #define xcb_size_hints_set_resize_inc xcb_icccm_size_hints_set_resize_inc
  83 #define xcb_size_hints_set_size xcb_icccm_size_hints_set_size
  84 #define xcb_size_hints_set_win_gravity xcb_icccm_size_hints_set_win_gravity
  85 #define xcb_wm_hints_set_iconic xcb_icccm_wm_hints_set_iconic
  86 #define xcb_wm_hints_set_normal xcb_icccm_wm_hints_set_normal
  87 #define xcb_wm_hints_set_input xcb_icccm_wm_hints_set_input
  88 #define xcb_wm_hints_t xcb_icccm_wm_hints_t
  89 #define XCB_WM_STATE_ICONIC XCB_ICCCM_WM_STATE_ICONIC
  90 #define XCB_WM_STATE_WITHDRAWN XCB_ICCCM_WM_STATE_WITHDRAWN
  91 #endif
  92
  93 #include <private/qguiapplication_p.h>
  94 #include <private/qwindow_p.h>
  95
  96 #include <qpa/qplatformbackingstore.h>
  97 #include <qpa/qwindowsysteminterface.h>
  98
  99 #include <stdio.h>
 100
 101 #ifdef XCB_USE_XLIB
 102 #include <X11/Xlib.h>
 103 #include <X11/Xutil.h>
 104 #endif
 105
 106 #if defined(XCB_USE_XINPUT2_MAEMO) || defined(XCB_USE_XINPUT2)
 107 #include <X11/extensions/XInput2.h>
 108 #endif
 109
 110 #if defined(XCB_USE_GLX)
 111 #include "qglxintegration.h"
 112 #include <QtPlatformSupport/private/qglxconvenience_p.h>
 113 #elif defined(XCB_USE_EGL)
 114 #include "qxcbeglsurface.h"
 115 #include <QtPlatformSupport/private/qeglconvenience_p.h>
 116 #include <QtPlatformSupport/private/qxlibeglintegration_p.h>
 117 #endif
 118
 119 #define XCOORD_MAX 16383
 120
 121 //#ifdef NET_WM_STATE_DEBUG
 122
 123 QT_BEGIN_NAMESPACE
 124
 125 // Returns true if we should set WM_TRANSIENT_FOR on \a w
 126 static inline bool isTransient(const QWindow *w)
 127 {
 128     return w->windowType() == Qt::Dialog
 129            || w->windowType() == Qt::Sheet
 130            || w->windowType() == Qt::Tool
 131            || w->windowType() == Qt::SplashScreen
 132            || w->windowType() == Qt::ToolTip
 133            || w->windowType() == Qt::Drawer
 134            || w->windowType() == Qt::Popup;
 135 }
 136
 137 static inline QImage::Format imageFormatForDepth(int depth)
 138 {
 139     switch (depth) {
 140         case 32: return QImage::Format_ARGB32_Premultiplied;
 141         case 24: return QImage::Format_RGB32;
 142         case 16: return QImage::Format_RGB16;
 143         default: return QImage::Format_Invalid;
 144     }
 145 }
 146
 147 static inline bool positionIncludesFrame(QWindow *w)
 148 {
 149     return qt_window_private(w)->positionPolicy == QWindowPrivate::WindowFrameInclusive;
 150 }
 151
 152 QXcbWindow::QXcbWindow(QWindow *window)
 153     : QPlatformWindow(window)
 154     , m_window(0)
 155     , m_syncCounter(0)
 156     , m_gravity(XCB_GRAVITY_STATIC)
 157     , m_mapped(false)
 158     , m_transparent(false)
 159     , m_deferredActivation(false)
 160     , m_netWmUserTimeWindow(XCB_NONE)
 161     , m_dirtyFrameMargins(false)
 162 #if defined(XCB_USE_EGL)
 163     , m_eglSurface(0)
 164 #endif
 165     , m_lastWindowStateEvent(-1)
 166 {
 167     m_screen = static_cast<QXcbScreen *>(window->screen()->handle());
 168
 169     setConnection(m_screen->connection());
 170
 171     create();
 172 }
 173
 174 void QXcbWindow::create()
 175 {
 176     destroy();
 177
 178     m_deferredExpose = false;
 179     m_configureNotifyPending = true;
 180     m_windowState = Qt::WindowNoState;
 181
 182     Qt::WindowType type = window()->windowType();
 183
 184     if (type == Qt::Desktop) {
 185         m_window = m_screen->root();
 186         m_depth = m_screen->screen()->root_depth;
 187         m_imageFormat = imageFormatForDepth(m_depth);
 188         connection()->addWindow(m_window, this);
 189         return;
 190     }
 191
 192     // Determine gravity from initial position. Do not change
 193     // later as it will cause the window to move uncontrollably.
 194     m_gravity = positionIncludesFrame(window()) ?
 195                 XCB_GRAVITY_NORTH_WEST : XCB_GRAVITY_STATIC;
 196
 197     const quint32 mask = XCB_CW_BACK_PIXMAP | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_SAVE_UNDER | XCB_CW_EVENT_MASK;
 198     const quint32 values[] = {
 199         // XCB_CW_BACK_PIXMAP
 200         XCB_NONE,
 201         // XCB_CW_OVERRIDE_REDIRECT
 202         type == Qt::Popup || type == Qt::ToolTip,
 203         // XCB_CW_SAVE_UNDER
 204         type == Qt::Popup || type == Qt::Tool || type == Qt::SplashScreen || type == Qt::ToolTip || type == Qt::Drawer,
 205         // XCB_CW_EVENT_MASK
 206         XCB_EVENT_MASK_EXPOSURE
 207         | XCB_EVENT_MASK_STRUCTURE_NOTIFY
 208         | XCB_EVENT_MASK_KEY_PRESS
 209         | XCB_EVENT_MASK_KEY_RELEASE
 210         | XCB_EVENT_MASK_BUTTON_PRESS
 211         | XCB_EVENT_MASK_BUTTON_RELEASE
 212         | XCB_EVENT_MASK_BUTTON_MOTION
 213         | XCB_EVENT_MASK_ENTER_WINDOW
 214         | XCB_EVENT_MASK_LEAVE_WINDOW
 215         | XCB_EVENT_MASK_POINTER_MOTION
 216         | XCB_EVENT_MASK_PROPERTY_CHANGE
 217         | XCB_EVENT_MASK_FOCUS_CHANGE
 218     };
 219
 220     // Parameters to XCreateWindow() are frame corner + inner size.
 221     // This fits in case position policy is frame inclusive. There is
 222     // currently no way to implement it for frame-exclusive geometries.
 223     QRect rect = window()->geometry();
 224     QPlatformWindow::setGeometry(rect);
 225
 226     rect.setWidth(qBound(1, rect.width(), XCOORD_MAX));
 227     rect.setHeight(qBound(1, rect.height(), XCOORD_MAX));
 228
 229     xcb_window_t xcb_parent_id = m_screen->root();
 230     if (parent())
 231         xcb_parent_id = static_cast<QXcbWindow *>(parent())->xcb_window();
 232
 233     m_format = window()->requestedFormat();
 234
 235 #if (defined(XCB_USE_GLX) || defined(XCB_USE_EGL)) && defined(XCB_USE_XLIB)
 236     if (QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::OpenGL)
 237         || m_format.hasAlpha())
 238     {
 239 #if defined(XCB_USE_GLX)
 240         XVisualInfo *visualInfo = qglx_findVisualInfo(DISPLAY_FROM_XCB(m_screen), m_screen->screenNumber(), &m_format);
 241         if (!visualInfo && window()->surfaceType() == QSurface::OpenGLSurface)
 242             qFatal("Could not initialize GLX");
 243 #elif defined(XCB_USE_EGL)
 244         EGLDisplay eglDisplay = connection()->egl_display();
 245         EGLConfig eglConfig = q_configFromGLFormat(eglDisplay, m_format, true);
 246         m_format = q_glFormatFromConfig(eglDisplay, eglConfig);
 247
 248         VisualID id = QXlibEglIntegration::getCompatibleVisualId(DISPLAY_FROM_XCB(this), eglDisplay, eglConfig);
 249
 250         XVisualInfo visualInfoTemplate;
 251         memset(&visualInfoTemplate, 0, sizeof(XVisualInfo));
 252         visualInfoTemplate.visualid = id;
 253
 254         XVisualInfo *visualInfo;
 255         int matchingCount = 0;
 256         visualInfo = XGetVisualInfo(DISPLAY_FROM_XCB(this), VisualIDMask, &visualInfoTemplate, &matchingCount);
 257         if (!visualInfo && window()->surfaceType() == QSurface::OpenGLSurface)
 258             qFatal("Could not initialize EGL");
 259 #endif //XCB_USE_GLX
 260         if (visualInfo) {
 261             m_depth = visualInfo->depth;
 262             m_imageFormat = imageFormatForDepth(m_depth);
 263             Colormap cmap = XCreateColormap(DISPLAY_FROM_XCB(this), xcb_parent_id, visualInfo->visual, AllocNone);
 264
 265             XSetWindowAttributes a;
 266             a.background_pixel = WhitePixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 267             a.border_pixel = BlackPixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 268             a.colormap = cmap;
 269
 270             m_visualId = visualInfo->visualid;
 271
 272             m_window = XCreateWindow(DISPLAY_FROM_XCB(this), xcb_parent_id, rect.x(), rect.y(), rect.width(), rect.height(),
 273                                       0, visualInfo->depth, InputOutput, visualInfo->visual,
 274                                       CWBackPixel|CWBorderPixel|CWColormap, &a);
 275
 276             XFree(visualInfo);
 277         }
 278     }
 279
 280     if (!m_window)
 281 #endif //defined(XCB_USE_GLX) || defined(XCB_USE_EGL)
 282     {
 283         m_window = xcb_generate_id(xcb_connection());
 284         m_depth = m_screen->screen()->root_depth;
 285         m_imageFormat = imageFormatForDepth(m_depth);
 286         m_visualId = m_screen->screen()->root_visual;
 287
 288         Q_XCB_CALL(xcb_create_window(xcb_connection(),
 289                                      XCB_COPY_FROM_PARENT,            // depth -- same as root
 290                                      m_window,                        // window id
 291                                      xcb_parent_id,                   // parent window id
 292                                      rect.x(),
 293                                      rect.y(),
 294                                      rect.width(),
 295                                      rect.height(),
 296                                      0,                               // border width
 297                                      XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
 298                                      m_visualId,                      // visual
 299                                      0,                               // value mask
 300                                      0));                             // value list
 301     }
 302
 303     connection()->addWindow(m_window, this);
 304
 305     Q_XCB_CALL(xcb_change_window_attributes(xcb_connection(), m_window, mask, values));
 306
 307     propagateSizeHints();
 308
 309     xcb_atom_t properties[4];
 310     int propertyCount = 0;
 311     properties[propertyCount++] = atom(QXcbAtom::WM_DELETE_WINDOW);
 312     properties[propertyCount++] = atom(QXcbAtom::WM_TAKE_FOCUS);
 313     properties[propertyCount++] = atom(QXcbAtom::_NET_WM_PING);
 314
 315     if (m_screen->syncRequestSupported())
 316         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_SYNC_REQUEST);
 317
 318     if (window()->windowFlags() & Qt::WindowContextHelpButtonHint)
 319         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_CONTEXT_HELP);
 320
 321     Q_XCB_CALL(xcb_change_property(xcb_connection(),
 322                                    XCB_PROP_MODE_REPLACE,
 323                                    m_window,
 324                                    atom(QXcbAtom::WM_PROTOCOLS),
 325                                    XCB_ATOM_ATOM,
 326                                    32,
 327                                    propertyCount,
 328                                    properties));
 329     m_syncValue.hi = 0;
 330     m_syncValue.lo = 0;
 331
 332     if (m_screen->syncRequestSupported()) {
 333         m_syncCounter = xcb_generate_id(xcb_connection());
 334         Q_XCB_CALL(xcb_sync_create_counter(xcb_connection(), m_syncCounter, m_syncValue));
 335
 336         Q_XCB_CALL(xcb_change_property(xcb_connection(),
 337                                        XCB_PROP_MODE_REPLACE,
 338                                        m_window,
 339                                        atom(QXcbAtom::_NET_WM_SYNC_REQUEST_COUNTER),
 340                                        XCB_ATOM_CARDINAL,
 341                                        32,
 342                                        1,
 343                                        &m_syncCounter));
 344     }
 345
 346     // set the PID to let the WM kill the application if unresponsive
 347     long pid = getpid();
 348     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 349                                    atom(QXcbAtom::_NET_WM_PID), XCB_ATOM_CARDINAL, 32,
 350                                    1, &pid));
 351
 352     xcb_wm_hints_t hints;
 353     memset(&hints, 0, sizeof(hints));
 354     xcb_wm_hints_set_normal(&hints);
 355
 356     xcb_wm_hints_set_input(&hints, !(window()->windowFlags() & Qt::WindowDoesNotAcceptFocus));
 357
 358     xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 359
 360     xcb_window_t leader = m_screen->clientLeader();
 361     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 362                                    atom(QXcbAtom::WM_CLIENT_LEADER), XCB_ATOM_WINDOW, 32,
 363                                    1, &leader));
 364
 365 #ifdef XCB_USE_XINPUT2_MAEMO
 366     if (connection()->isUsingXInput2Maemo()) {
 367         XIEventMask xieventmask;
 368         uchar bitmask[2] = { 0, 0 };
 369
 370         xieventmask.deviceid = XIAllMasterDevices;
 371         xieventmask.mask = bitmask;
 372         xieventmask.mask_len = sizeof(bitmask);
 373
 374         XISetMask(bitmask, XI_ButtonPress);
 375         XISetMask(bitmask, XI_ButtonRelease);
 376         XISetMask(bitmask, XI_Motion);
 377
 378         XISelectEvents(DISPLAY_FROM_XCB(this), m_window, &xieventmask, 1);
 379     }
 380 #elif defined(XCB_USE_XINPUT2)
 381     connection()->xi2Select(m_window);
 382 #endif
 383
 384     setWindowFlags(window()->windowFlags());
 385     setWindowTitle(window()->windowTitle());
 386     setWindowState(window()->windowState());
 387
 388     if (window()->windowFlags() & Qt::WindowTransparentForInput)
 389         setTransparentForMouseEvents(true);
 390
 391 #ifndef QT_NO_DRAGANDDROP
 392     connection()->drag()->dndEnable(this, true);
 393 #endif
 394 }
 395
 396 QXcbWindow::~QXcbWindow()
 397 {
 398     destroy();
 399 }
 400
 401 void QXcbWindow::destroy()
 402 {
 403     if (m_syncCounter && m_screen->syncRequestSupported())
 404         Q_XCB_CALL(xcb_sync_destroy_counter(xcb_connection(), m_syncCounter));
 405     if (m_window) {
 406         if (m_netWmUserTimeWindow) {
 407             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
 408             // Some window managers, like metacity, do XSelectInput on the _NET_WM_USER_TIME_WINDOW window,
 409             // without trapping BadWindow (which crashes when the user time window is destroyed).
 410             connection()->sync();
 411             xcb_destroy_window(xcb_connection(), m_netWmUserTimeWindow);
 412             m_netWmUserTimeWindow = XCB_NONE;
 413         }
 414         connection()->removeWindow(m_window);
 415         Q_XCB_CALL(xcb_destroy_window(xcb_connection(), m_window));
 416         m_window = 0;
 417     }
 418     m_mapped = false;
 419
 420 #if defined(XCB_USE_EGL)
 421     delete m_eglSurface;
 422     m_eglSurface = 0;
 423 #endif
 424 }
 425
 426 void QXcbWindow::setGeometry(const QRect &rect)
 427 {
 428     QPlatformWindow::setGeometry(rect);
 429
 430     propagateSizeHints();
 431     const QRect wmGeometry = windowToWmGeometry(rect);
 432
 433     const quint32 mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
 434     const qint32 values[] = {
 435         qBound<qint32>(-XCOORD_MAX, wmGeometry.x(),      XCOORD_MAX),
 436         qBound<qint32>(-XCOORD_MAX, wmGeometry.y(),      XCOORD_MAX),
 437         qBound<qint32>(1,           wmGeometry.width(),  XCOORD_MAX),
 438         qBound<qint32>(1,           wmGeometry.height(), XCOORD_MAX),
 439     };
 440
 441     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, reinterpret_cast<const quint32*>(values)));
 442
 443     xcb_flush(xcb_connection());
 444 }
 445
 446 QMargins QXcbWindow::frameMargins() const
 447 {
 448     if (m_dirtyFrameMargins) {
 449         xcb_window_t window = m_window;
 450         xcb_window_t parent = m_window;
 451
 452         bool foundRoot = false;
 453
 454         const QVector<xcb_window_t> &virtualRoots =
 455             connection()->wmSupport()->virtualRoots();
 456
 457         while (!foundRoot) {
 458             xcb_query_tree_cookie_t cookie = xcb_query_tree_unchecked(xcb_connection(), parent);
 459
 460             xcb_query_tree_reply_t *reply = xcb_query_tree_reply(xcb_connection(), cookie, NULL);
 461             if (reply) {
 462                 if (reply->root == reply->parent || virtualRoots.indexOf(reply->parent) != -1) {
 463                     foundRoot = true;
 464                 } else {
 465                     window = parent;
 466                     parent = reply->parent;
 467                 }
 468
 469                 free(reply);
 470             } else {
 471                 m_dirtyFrameMargins = false;
 472                 m_frameMargins = QMargins();
 473                 return m_frameMargins;
 474             }
 475         }
 476
 477         QPoint offset;
 478
 479         xcb_translate_coordinates_reply_t *reply =
 480             xcb_translate_coordinates_reply(
 481                 xcb_connection(),
 482                 xcb_translate_coordinates(xcb_connection(), window, parent, 0, 0),
 483                 NULL);
 484
 485         if (reply) {
 486             offset = QPoint(reply->dst_x, reply->dst_y);
 487             free(reply);
 488         }
 489
 490         xcb_get_geometry_reply_t *geom =
 491             xcb_get_geometry_reply(
 492                 xcb_connection(),
 493                 xcb_get_geometry(xcb_connection(), parent),
 494                 NULL);
 495
 496         if (geom) {
 497             // --
 498             // add the border_width for the window managers frame... some window managers
 499             // do not use a border_width of zero for their frames, and if we the left and
 500             // top strut, we ensure that pos() is absolutely correct.  frameGeometry()
 501             // will still be incorrect though... perhaps i should have foffset as well, to
 502             // indicate the frame offset (equal to the border_width on X).
 503             // - Brad
 504             // -- copied from qwidget_x11.cpp
 505
 506             int left = offset.x() + geom->border_width;
 507             int top = offset.y() + geom->border_width;
 508             int right = geom->width + geom->border_width - geometry().width() - offset.x();
 509             int bottom = geom->height + geom->border_width - geometry().height() - offset.y();
 510
 511             m_frameMargins = QMargins(left, top, right, bottom);
 512
 513             free(geom);
 514         }
 515
 516         m_dirtyFrameMargins = false;
 517     }
 518
 519     return m_frameMargins;
 520 }
 521
 522 void QXcbWindow::setVisible(bool visible)
 523 {
 524     if (visible)
 525         show();
 526     else
 527         hide();
 528 }
 529
 530 void QXcbWindow::show()
 531 {
 532     if (window()->isTopLevel()) {
 533         xcb_get_property_cookie_t cookie = xcb_get_wm_hints_unchecked(xcb_connection(), m_window);
 534
 535         xcb_wm_hints_t hints;
 536         xcb_get_wm_hints_reply(xcb_connection(), cookie, &hints, NULL);
 537
 538         if (window()->windowState() & Qt::WindowMinimized)
 539             xcb_wm_hints_set_iconic(&hints);
 540         else
 541             xcb_wm_hints_set_normal(&hints);
 542
 543         xcb_wm_hints_set_input(&hints, !(window()->windowFlags() & Qt::WindowDoesNotAcceptFocus));
 544
 545         xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 546
 547         // update WM_NORMAL_HINTS
 548         propagateSizeHints();
 549
 550         // update WM_TRANSIENT_FOR
 551         if (window()->transientParent() && isTransient(window())) {
 552             QXcbWindow *transientXcbParent = static_cast<QXcbWindow *>(window()->transientParent()->handle());
 553             if (transientXcbParent) {
 554                 // ICCCM 4.1.2.6
 555                 xcb_window_t parentWindow = transientXcbParent->xcb_window();
 556
 557                 // todo: set transient for group (wm_client_leader) if no parent, a la qwidget_x11.cpp
 558                 Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 559                                                XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, 32,
 560                                                1, &parentWindow));
 561             }
 562         }
 563
 564         // update _MOTIF_WM_HINTS
 565         updateMotifWmHintsBeforeMap();
 566
 567         // update _NET_WM_STATE
 568         updateNetWmStateBeforeMap();
 569     }
 570
 571     if (connection()->time() != XCB_TIME_CURRENT_TIME)
 572         updateNetWmUserTime(connection()->time());
 573
 574     Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 575     xcb_flush(xcb_connection());
 576
 577     connection()->sync();
 578 }
 579
 580 void QXcbWindow::hide()
 581 {
 582     Q_XCB_CALL(xcb_unmap_window(xcb_connection(), m_window));
 583
 584     // send synthetic UnmapNotify event according to icccm 4.1.4
 585     xcb_unmap_notify_event_t event;
 586     event.response_type = XCB_UNMAP_NOTIFY;
 587     event.event = m_screen->root();
 588     event.window = m_window;
 589     event.from_configure = false;
 590     Q_XCB_CALL(xcb_send_event(xcb_connection(), false, m_screen->root(),
 591                               XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&event));
 592
 593     xcb_flush(xcb_connection());
 594
 595     m_mapped = false;
 596 }
 597
 598 struct QtMotifWmHints {
 599     quint32 flags, functions, decorations;
 600     qint32 input_mode;
 601     quint32 status;
 602 };
 603
 604 enum {
 605     MWM_HINTS_FUNCTIONS   = (1L << 0),
 606
 607     MWM_FUNC_ALL      = (1L << 0),
 608     MWM_FUNC_RESIZE   = (1L << 1),
 609     MWM_FUNC_MOVE     = (1L << 2),
 610     MWM_FUNC_MINIMIZE = (1L << 3),
 611     MWM_FUNC_MAXIMIZE = (1L << 4),
 612     MWM_FUNC_CLOSE    = (1L << 5),
 613
 614     MWM_HINTS_DECORATIONS = (1L << 1),
 615
 616     MWM_DECOR_ALL      = (1L << 0),
 617     MWM_DECOR_BORDER   = (1L << 1),
 618     MWM_DECOR_RESIZEH  = (1L << 2),
 619     MWM_DECOR_TITLE    = (1L << 3),
 620     MWM_DECOR_MENU     = (1L << 4),
 621     MWM_DECOR_MINIMIZE = (1L << 5),
 622     MWM_DECOR_MAXIMIZE = (1L << 6),
 623
 624     MWM_HINTS_INPUT_MODE = (1L << 2),
 625
 626     MWM_INPUT_MODELESS                  = 0L,
 627     MWM_INPUT_PRIMARY_APPLICATION_MODAL = 1L,
 628     MWM_INPUT_FULL_APPLICATION_MODAL    = 3L
 629 };
 630
 631 static QtMotifWmHints getMotifWmHints(QXcbConnection *c, xcb_window_t window)
 632 {
 633     QtMotifWmHints hints;
 634
 635     xcb_get_property_cookie_t get_cookie =
 636         xcb_get_property_unchecked(c->xcb_connection(), 0, window, c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 637                          c->atom(QXcbAtom::_MOTIF_WM_HINTS), 0, 20);
 638
 639     xcb_get_property_reply_t *reply =
 640         xcb_get_property_reply(c->xcb_connection(), get_cookie, NULL);
 641
 642     if (reply && reply->format == 32 && reply->type == c->atom(QXcbAtom::_MOTIF_WM_HINTS)) {
 643         hints = *((QtMotifWmHints *)xcb_get_property_value(reply));
 644     } else {
 645         hints.flags = 0L;
 646         hints.functions = MWM_FUNC_ALL;
 647         hints.decorations = MWM_DECOR_ALL;
 648         hints.input_mode = 0L;
 649         hints.status = 0L;
 650     }
 651
 652     free(reply);
 653
 654     return hints;
 655 }
 656
 657 static void setMotifWmHints(QXcbConnection *c, xcb_window_t window, const QtMotifWmHints &hints)
 658 {
 659     if (hints.flags != 0l) {
 660         Q_XCB_CALL2(xcb_change_property(c->xcb_connection(),
 661                                        XCB_PROP_MODE_REPLACE,
 662                                        window,
 663                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 664                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 665                                        32,
 666                                        5,
 667                                        &hints), c);
 668     } else {
 669         Q_XCB_CALL2(xcb_delete_property(c->xcb_connection(), window, c->atom(QXcbAtom::_MOTIF_WM_HINTS)), c);
 670     }
 671 }
 672
 673 QXcbWindow::NetWmStates QXcbWindow::netWmStates()
 674 {
 675     NetWmStates result(0);
 676
 677     xcb_get_property_cookie_t get_cookie =
 678         xcb_get_property_unchecked(xcb_connection(), 0, m_window, atom(QXcbAtom::_NET_WM_STATE),
 679                          XCB_ATOM_ATOM, 0, 1024);
 680
 681     xcb_get_property_reply_t *reply =
 682         xcb_get_property_reply(xcb_connection(), get_cookie, NULL);
 683
 684     if (reply && reply->format == 32 && reply->type == XCB_ATOM_ATOM) {
 685         const xcb_atom_t *states = static_cast<const xcb_atom_t *>(xcb_get_property_value(reply));
 686         const xcb_atom_t *statesEnd = states + reply->length;
 687         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_ABOVE)))
 688             result |= NetWmStateAbove;
 689         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_BELOW)))
 690             result |= NetWmStateBelow;
 691         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN)))
 692             result |= NetWmStateFullScreen;
 693         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ)))
 694             result |= NetWmStateMaximizedHorz;
 695         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT)))
 696             result |= NetWmStateMaximizedVert;
 697         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_MODAL)))
 698             result |= NetWmStateModal;
 699         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP)))
 700             result |= NetWmStateStaysOnTop;
 701         if (statesEnd != qFind(states, statesEnd, atom(QXcbAtom::_NET_WM_STATE_DEMANDS_ATTENTION)))
 702             result |= NetWmStateDemandsAttention;
 703         free(reply);
 704     } else {
 705 #ifdef NET_WM_STATE_DEBUG
 706         printf("getting net wm state (%x), empty\n", m_window);
 707 #endif
 708     }
 709
 710     return result;
 711 }
 712
 713 void QXcbWindow::setNetWmStates(NetWmStates states)
 714 {
 715     QVector<xcb_atom_t> atoms;
 716     if (states & NetWmStateAbove)
 717         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_ABOVE));
 718     if (states & NetWmStateBelow)
 719         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_BELOW));
 720     if (states & NetWmStateFullScreen)
 721         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 722     if (states & NetWmStateMaximizedHorz)
 723         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ));
 724     if (states & NetWmStateMaximizedVert)
 725         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 726     if (states & NetWmStateModal)
 727         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_MODAL));
 728     if (states & NetWmStateStaysOnTop)
 729         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP));
 730     if (states & NetWmStateDemandsAttention)
 731         atoms.push_back(atom(QXcbAtom::_NET_WM_STATE_DEMANDS_ATTENTION));
 732
 733     if (atoms.isEmpty()) {
 734         Q_XCB_CALL(xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_STATE)));
 735     } else {
 736         Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 737                                        atom(QXcbAtom::_NET_WM_STATE), XCB_ATOM_ATOM, 32,
 738                                        atoms.count(), atoms.constData()));
 739     }
 740     xcb_flush(xcb_connection());
 741 }
 742
 743 Qt::WindowFlags QXcbWindow::setWindowFlags(Qt::WindowFlags flags)
 744 {
 745     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 746
 747     if (type == Qt::ToolTip)
 748         flags |= Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint;
 749     if (type == Qt::Popup)
 750         flags |= Qt::X11BypassWindowManagerHint;
 751
 752     if (flags & Qt::WindowTransparentForInput) {
 753         uint32_t mask = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_VISIBILITY_CHANGE
 754                  | XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_RESIZE_REDIRECT
 755                 | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT
 756                 | XCB_EVENT_MASK_FOCUS_CHANGE  | XCB_EVENT_MASK_PROPERTY_CHANGE
 757                 | XCB_EVENT_MASK_COLOR_MAP_CHANGE | XCB_EVENT_MASK_OWNER_GRAB_BUTTON;
 758         xcb_change_window_attributes(xcb_connection(), xcb_window(), XCB_CW_EVENT_MASK, &mask);
 759     }
 760
 761     setNetWmWindowFlags(flags);
 762     setMotifWindowFlags(flags);
 763
 764     setTransparentForMouseEvents(flags & Qt::WindowTransparentForInput);
 765     updateDoesNotAcceptFocus(flags & Qt::WindowDoesNotAcceptFocus);
 766
 767     return flags;
 768 }
 769
 770 void QXcbWindow::setMotifWindowFlags(Qt::WindowFlags flags)
 771 {
 772     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 773
 774     QtMotifWmHints mwmhints;
 775     mwmhints.flags = 0L;
 776     mwmhints.functions = 0L;
 777     mwmhints.decorations = 0;
 778     mwmhints.input_mode = 0L;
 779     mwmhints.status = 0L;
 780
 781     if (type != Qt::SplashScreen) {
 782         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 783
 784         bool customize = flags & Qt::CustomizeWindowHint;
 785         if (!(flags & Qt::FramelessWindowHint) && !(customize && !(flags & Qt::WindowTitleHint))) {
 786             mwmhints.decorations |= MWM_DECOR_BORDER;
 787             mwmhints.decorations |= MWM_DECOR_RESIZEH;
 788
 789             if (flags & Qt::WindowTitleHint)
 790                 mwmhints.decorations |= MWM_DECOR_TITLE;
 791
 792             if (flags & Qt::WindowSystemMenuHint)
 793                 mwmhints.decorations |= MWM_DECOR_MENU;
 794
 795             if (flags & Qt::WindowMinimizeButtonHint) {
 796                 mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 797                 mwmhints.functions |= MWM_FUNC_MINIMIZE;
 798             }
 799
 800             if (flags & Qt::WindowMaximizeButtonHint) {
 801                 mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 802                 mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 803             }
 804
 805             if (flags & Qt::WindowCloseButtonHint)
 806                 mwmhints.functions |= MWM_FUNC_CLOSE;
 807         }
 808     } else {
 809         // if type == Qt::SplashScreen
 810         mwmhints.decorations = MWM_DECOR_ALL;
 811     }
 812
 813     if (mwmhints.functions != 0) {
 814         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 815         mwmhints.functions |= MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 816     } else {
 817         mwmhints.functions = MWM_FUNC_ALL;
 818     }
 819
 820     if (!(flags & Qt::FramelessWindowHint)
 821         && flags & Qt::CustomizeWindowHint
 822         && flags & Qt::WindowTitleHint
 823         && !(flags &
 824              (Qt::WindowMinimizeButtonHint
 825               | Qt::WindowMaximizeButtonHint
 826               | Qt::WindowCloseButtonHint)))
 827     {
 828         // a special case - only the titlebar without any button
 829         mwmhints.flags = MWM_HINTS_FUNCTIONS;
 830         mwmhints.functions = MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 831         mwmhints.decorations = 0;
 832     }
 833
 834     setMotifWmHints(connection(), m_window, mwmhints);
 835 }
 836
 837 void QXcbWindow::changeNetWmState(bool set, xcb_atom_t one, xcb_atom_t two)
 838 {
 839     xcb_client_message_event_t event;
 840
 841     event.response_type = XCB_CLIENT_MESSAGE;
 842     event.format = 32;
 843     event.window = m_window;
 844     event.type = atom(QXcbAtom::_NET_WM_STATE);
 845     event.data.data32[0] = set ? 1 : 0;
 846     event.data.data32[1] = one;
 847     event.data.data32[2] = two;
 848     event.data.data32[3] = 0;
 849     event.data.data32[4] = 0;
 850
 851     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));
 852 }
 853
 854 Qt::WindowState QXcbWindow::setWindowState(Qt::WindowState state)
 855 {
 856     if (state == m_windowState)
 857         return state;
 858
 859     // unset old state
 860     switch (m_windowState) {
 861     case Qt::WindowMinimized:
 862         Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 863         break;
 864     case Qt::WindowMaximized:
 865         changeNetWmState(false,
 866                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 867                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 868         break;
 869     case Qt::WindowFullScreen:
 870         changeNetWmState(false, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 871         break;
 872     default:
 873         break;
 874     }
 875
 876     // set new state
 877     switch (state) {
 878     case Qt::WindowMinimized:
 879         {
 880             xcb_client_message_event_t event;
 881
 882             event.response_type = XCB_CLIENT_MESSAGE;
 883             event.format = 32;
 884             event.window = m_window;
 885             event.type = atom(QXcbAtom::WM_CHANGE_STATE);
 886             event.data.data32[0] = XCB_WM_STATE_ICONIC;
 887             event.data.data32[1] = 0;
 888             event.data.data32[2] = 0;
 889             event.data.data32[3] = 0;
 890             event.data.data32[4] = 0;
 891
 892             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));
 893         }
 894         break;
 895     case Qt::WindowMaximized:
 896         changeNetWmState(true,
 897                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 898                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 899         break;
 900     case Qt::WindowFullScreen:
 901         changeNetWmState(true, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 902         break;
 903     case Qt::WindowNoState:
 904         break;
 905     default:
 906         break;
 907     }
 908
 909     connection()->sync();
 910
 911     m_windowState = state;
 912     return m_windowState;
 913 }
 914
 915 void QXcbWindow::setNetWmWindowFlags(Qt::WindowFlags flags)
 916 {
 917     // in order of decreasing priority
 918     QVector<uint> windowTypes;
 919
 920     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 921
 922     switch (type) {
 923     case Qt::Dialog:
 924     case Qt::Sheet:
 925         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_DIALOG));
 926         break;
 927     case Qt::Tool:
 928     case Qt::Drawer:
 929         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_UTILITY));
 930         break;
 931     case Qt::ToolTip:
 932         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_TOOLTIP));
 933         break;
 934     case Qt::SplashScreen:
 935         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_SPLASH));
 936         break;
 937     default:
 938         break;
 939     }
 940
 941     if (flags & Qt::FramelessWindowHint)
 942         windowTypes.append(atom(QXcbAtom::_KDE_NET_WM_WINDOW_TYPE_OVERRIDE));
 943
 944     windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_NORMAL));
 945
 946     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 947                                    atom(QXcbAtom::_NET_WM_WINDOW_TYPE), XCB_ATOM_ATOM, 32,
 948                                    windowTypes.count(), windowTypes.constData()));
 949 }
 950
 951 void QXcbWindow::updateMotifWmHintsBeforeMap()
 952 {
 953     QtMotifWmHints mwmhints = getMotifWmHints(connection(), m_window);
 954
 955     if (window()->windowModality() != Qt::NonModal) {
 956         switch (window()->windowModality()) {
 957         case Qt::WindowModal:
 958             mwmhints.input_mode = MWM_INPUT_PRIMARY_APPLICATION_MODAL;
 959             break;
 960         case Qt::ApplicationModal:
 961         default:
 962             mwmhints.input_mode = MWM_INPUT_FULL_APPLICATION_MODAL;
 963             break;
 964         }
 965         mwmhints.flags |= MWM_HINTS_INPUT_MODE;
 966     } else {
 967         mwmhints.input_mode = MWM_INPUT_MODELESS;
 968         mwmhints.flags &= ~MWM_HINTS_INPUT_MODE;
 969     }
 970
 971     if (window()->minimumSize() == window()->maximumSize()) {
 972         // fixed size, remove the resize handle (since mwm/dtwm
 973         // isn't smart enough to do it itself)
 974         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 975         if (mwmhints.functions == MWM_FUNC_ALL) {
 976             mwmhints.functions = MWM_FUNC_MOVE;
 977         } else {
 978             mwmhints.functions &= ~MWM_FUNC_RESIZE;
 979         }
 980
 981         if (mwmhints.decorations == MWM_DECOR_ALL) {
 982             mwmhints.flags |= MWM_HINTS_DECORATIONS;
 983             mwmhints.decorations = (MWM_DECOR_BORDER
 984                                     | MWM_DECOR_TITLE
 985                                     | MWM_DECOR_MENU);
 986         } else {
 987             mwmhints.decorations &= ~MWM_DECOR_RESIZEH;
 988         }
 989     }
 990
 991     if (window()->windowFlags() & Qt::WindowMinimizeButtonHint) {
 992         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 993         mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 994         mwmhints.functions |= MWM_FUNC_MINIMIZE;
 995     }
 996     if (window()->windowFlags() & Qt::WindowMaximizeButtonHint) {
 997         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 998         mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 999         mwmhints.functions |= MWM_FUNC_MAXIMIZE;
1000     }
1001     if (window()->windowFlags() & Qt::WindowCloseButtonHint)
1002         mwmhints.functions |= MWM_FUNC_CLOSE;
1003
1004     setMotifWmHints(connection(), m_window, mwmhints);
1005 }
1006
1007 void QXcbWindow::updateNetWmStateBeforeMap()
1008 {
1009     NetWmStates states(0);
1010
1011     const Qt::WindowFlags flags = window()->windowFlags();
1012     if (flags & Qt::WindowStaysOnTopHint) {
1013         states |= NetWmStateAbove;
1014         states |= NetWmStateStaysOnTop;
1015     } else if (flags & Qt::WindowStaysOnBottomHint) {
1016         states |= NetWmStateBelow;
1017     }
1018
1019     if (window()->windowState() & Qt::WindowFullScreen)
1020         states |= NetWmStateFullScreen;
1021
1022     if (window()->windowState() & Qt::WindowMaximized) {
1023         states |= NetWmStateMaximizedHorz;
1024         states |= NetWmStateMaximizedVert;
1025     }
1026
1027     if (window()->windowModality() != Qt::NonModal)
1028         states |= NetWmStateModal;
1029
1030     setNetWmStates(states);
1031 }
1032
1033 void QXcbWindow::updateNetWmUserTime(xcb_timestamp_t timestamp)
1034 {
1035     xcb_window_t wid = m_window;
1036
1037     const bool isSupportedByWM = connection()->wmSupport()->isSupportedByWM(atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
1038     if (m_netWmUserTimeWindow || isSupportedByWM) {
1039         if (!m_netWmUserTimeWindow) {
1040             m_netWmUserTimeWindow = xcb_generate_id(xcb_connection());
1041             Q_XCB_CALL(xcb_create_window(xcb_connection(),
1042                                          XCB_COPY_FROM_PARENT,            // depth -- same as root
1043                                          m_netWmUserTimeWindow,                        // window id
1044                                          m_window,                   // parent window id
1045                                          -1, -1, 1, 1,
1046                                          0,                               // border width
1047                                          XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
1048                                          m_visualId,                      // visual
1049                                          0,                               // value mask
1050                                          0));                             // value list
1051             wid = m_netWmUserTimeWindow;
1052             xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW),
1053                                 XCB_ATOM_WINDOW, 32, 1, &m_netWmUserTimeWindow);
1054             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME));
1055         } else if (!isSupportedByWM) {
1056             // WM no longer supports it, then we should remove the
1057             // _NET_WM_USER_TIME_WINDOW atom.
1058             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
1059             xcb_destroy_window(xcb_connection(), m_netWmUserTimeWindow);
1060             m_netWmUserTimeWindow = XCB_NONE;
1061         } else {
1062             wid = m_netWmUserTimeWindow;
1063         }
1064     }
1065     xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, wid, atom(QXcbAtom::_NET_WM_USER_TIME),
1066                         XCB_ATOM_CARDINAL, 32, 1, &timestamp);
1067 }
1068
1069 void QXcbWindow::setTransparentForMouseEvents(bool transparent)
1070 {
1071     if (transparent == m_transparent)
1072         return;
1073
1074     xcb_rectangle_t rectangle;
1075
1076     xcb_rectangle_t *rect = 0;
1077     int nrect = 0;
1078
1079     if (!transparent) {
1080         rectangle.x = 0;
1081         rectangle.y = 0;
1082         rectangle.width = geometry().width();
1083         rectangle.height = geometry().height();
1084         rect = &rectangle;
1085         nrect = 1;
1086     }
1087
1088     xcb_xfixes_region_t region = xcb_generate_id(xcb_connection());
1089     xcb_xfixes_create_region(xcb_connection(), region, nrect, rect);
1090     xcb_xfixes_set_window_shape_region_checked(xcb_connection(), m_window, XCB_SHAPE_SK_INPUT, 0, 0, region);
1091     xcb_xfixes_destroy_region(xcb_connection(), region);
1092
1093     m_transparent = transparent;
1094 }
1095
1096 void QXcbWindow::updateDoesNotAcceptFocus(bool doesNotAcceptFocus)
1097 {
1098     xcb_get_property_cookie_t cookie = xcb_get_wm_hints_unchecked(xcb_connection(), m_window);
1099
1100     xcb_wm_hints_t hints;
1101     if (!xcb_get_wm_hints_reply(xcb_connection(), cookie, &hints, NULL)) {
1102         return;
1103     }
1104
1105     xcb_wm_hints_set_input(&hints, !doesNotAcceptFocus);
1106     xcb_set_wm_hints(xcb_connection(), m_window, &hints);
1107 }
1108
1109 WId QXcbWindow::winId() const
1110 {
1111     return m_window;
1112 }
1113
1114 void QXcbWindow::setParent(const QPlatformWindow *parent)
1115 {
1116     // re-create for compatibility
1117     create();
1118
1119     QPoint topLeft = geometry().topLeft();
1120
1121     xcb_window_t xcb_parent_id = parent ? static_cast<const QXcbWindow *>(parent)->xcb_window() : m_screen->root();
1122     Q_XCB_CALL(xcb_reparent_window(xcb_connection(), xcb_window(), xcb_parent_id, topLeft.x(), topLeft.y()));
1123 }
1124
1125 void QXcbWindow::setWindowTitle(const QString &title)
1126 {
1127     QByteArray ba = title.toUtf8();
1128     Q_XCB_CALL(xcb_change_property(xcb_connection(),
1129                                    XCB_PROP_MODE_REPLACE,
1130                                    m_window,
1131                                    atom(QXcbAtom::_NET_WM_NAME),
1132                                    atom(QXcbAtom::UTF8_STRING),
1133                                    8,
1134                                    ba.length(),
1135                                    ba.constData()));
1136 }
1137
1138 void QXcbWindow::setWindowIcon(const QIcon &icon)
1139 {
1140     QVector<quint32> icon_data;
1141
1142     if (!icon.isNull()) {
1143         QList<QSize> availableSizes = icon.availableSizes();
1144         if (availableSizes.isEmpty()) {
1145             // try to use default sizes since the icon can be a scalable image like svg.
1146             availableSizes.push_back(QSize(16,16));
1147             availableSizes.push_back(QSize(32,32));
1148             availableSizes.push_back(QSize(64,64));
1149             availableSizes.push_back(QSize(128,128));
1150         }
1151         for (int i = 0; i < availableSizes.size(); ++i) {
1152             QSize size = availableSizes.at(i);
1153             QPixmap pixmap = icon.pixmap(size);
1154             if (!pixmap.isNull()) {
1155                 QImage image = pixmap.toImage().convertToFormat(QImage::Format_ARGB32);
1156                 int pos = icon_data.size();
1157                 icon_data.resize(pos + 2 + image.width()*image.height());
1158                 icon_data[pos++] = image.width();
1159                 icon_data[pos++] = image.height();
1160                 memcpy(icon_data.data() + pos, image.bits(), image.width()*image.height()*4);
1161             }
1162         }
1163     }
1164
1165     if (!icon_data.isEmpty()) {
1166         Q_XCB_CALL(xcb_change_property(xcb_connection(),
1167                                        XCB_PROP_MODE_REPLACE,
1168                                        m_window,
1169                                        atom(QXcbAtom::_NET_WM_ICON),
1170                                        atom(QXcbAtom::CARDINAL),
1171                                        32,
1172                                        icon_data.size(),
1173                                        (unsigned char *) icon_data.data()));
1174     } else {
1175         Q_XCB_CALL(xcb_delete_property(xcb_connection(),
1176                                        m_window,
1177                                        atom(QXcbAtom::_NET_WM_ICON)));
1178     }
1179 }
1180
1181 void QXcbWindow::raise()
1182 {
1183     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1184     const quint32 values[] = { XCB_STACK_MODE_ABOVE };
1185     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1186 }
1187
1188 void QXcbWindow::lower()
1189 {
1190     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1191     const quint32 values[] = { XCB_STACK_MODE_BELOW };
1192     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1193 }
1194
1195 // Adapt the geometry to match the WM expection with regards
1196 // to gravity.
1197 QRect QXcbWindow::windowToWmGeometry(QRect r) const
1198 {
1199     if (m_dirtyFrameMargins || m_frameMargins.isNull())
1200         return r;
1201     const bool frameInclusive = positionIncludesFrame(window());
1202     // XCB_GRAVITY_STATIC requires the inner geometry, whereas
1203     // XCB_GRAVITY_NORTH_WEST requires the frame geometry
1204     if (frameInclusive && m_gravity == XCB_GRAVITY_STATIC) {
1205         r.translate(m_frameMargins.left(), m_frameMargins.top());
1206     } else if (!frameInclusive && m_gravity == XCB_GRAVITY_NORTH_WEST) {
1207         r.translate(-m_frameMargins.left(), -m_frameMargins.top());
1208     }
1209     return r;
1210 }
1211
1212 void QXcbWindow::propagateSizeHints()
1213 {
1214     // update WM_NORMAL_HINTS
1215     xcb_size_hints_t hints;
1216     memset(&hints, 0, sizeof(hints));
1217
1218     const QRect rect = windowToWmGeometry(geometry());
1219
1220     QWindow *win = window();
1221
1222     xcb_size_hints_set_position(&hints, true, rect.x(), rect.y());
1223     xcb_size_hints_set_size(&hints, true, rect.width(), rect.height());
1224     xcb_size_hints_set_win_gravity(&hints, m_gravity);
1225
1226     QSize minimumSize = win->minimumSize();
1227     QSize maximumSize = win->maximumSize();
1228     QSize baseSize = win->baseSize();
1229     QSize sizeIncrement = win->sizeIncrement();
1230
1231     if (minimumSize.width() > 0 || minimumSize.height() > 0)
1232         xcb_size_hints_set_min_size(&hints, minimumSize.width(), minimumSize.height());
1233
1234     if (maximumSize.width() < QWINDOWSIZE_MAX || maximumSize.height() < QWINDOWSIZE_MAX)
1235         xcb_size_hints_set_max_size(&hints,
1236                                     qMin(XCOORD_MAX, maximumSize.width()),
1237                                     qMin(XCOORD_MAX, maximumSize.height()));
1238
1239     if (sizeIncrement.width() > 0 || sizeIncrement.height() > 0) {
1240         xcb_size_hints_set_base_size(&hints, baseSize.width(), baseSize.height());
1241         xcb_size_hints_set_resize_inc(&hints, sizeIncrement.width(), sizeIncrement.height());
1242     }
1243
1244     xcb_set_wm_normal_hints(xcb_connection(), m_window, &hints);
1245 }
1246
1247 void QXcbWindow::requestActivateWindow()
1248 {
1249     if (!m_mapped) {
1250         m_deferredActivation = true;
1251         return;
1252     }
1253     m_deferredActivation = false;
1254
1255     updateNetWmUserTime(connection()->time());
1256
1257     if (window()->isTopLevel()
1258         && connection()->wmSupport()->isSupportedByWM(atom(QXcbAtom::_NET_ACTIVE_WINDOW))) {
1259         xcb_client_message_event_t event;
1260
1261         event.response_type = XCB_CLIENT_MESSAGE;
1262         event.format = 32;
1263         event.window = m_window;
1264         event.type = atom(QXcbAtom::_NET_ACTIVE_WINDOW);
1265         event.data.data32[0] = 1;
1266         event.data.data32[1] = connection()->time();
1267         QWindow *focusWindow = QGuiApplication::focusWindow();
1268         event.data.data32[2] = focusWindow ? focusWindow->winId() : XCB_NONE;
1269         event.data.data32[3] = 0;
1270         event.data.data32[4] = 0;
1271
1272         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));
1273     } else {
1274         Q_XCB_CALL(xcb_set_input_focus(xcb_connection(), XCB_INPUT_FOCUS_PARENT, m_window, connection()->time()));
1275     }
1276
1277     connection()->sync();
1278 }
1279
1280 #if XCB_USE_MAEMO_WINDOW_PROPERTIES
1281 void QXcbWindow::handleContentOrientationChange(Qt::ScreenOrientation orientation)
1282 {
1283     int angle = 0;
1284     switch (orientation) {
1285         case Qt::PortraitOrientation: angle = 270; break;
1286         case Qt::LandscapeOrientation: angle = 0; break;
1287         case Qt::InvertedPortraitOrientation: angle = 90; break;
1288         case Qt::InvertedLandscapeOrientation: angle = 180; break;
1289         case Qt::PrimaryOrientation: break;
1290     }
1291     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
1292                                    atom(QXcbAtom::MeegoTouchOrientationAngle), XCB_ATOM_CARDINAL, 32,
1293                                    1, &angle));
1294 }
1295 #endif
1296
1297 QSurfaceFormat QXcbWindow::format() const
1298 {
1299     // ### return actual format
1300     return m_format;
1301 }
1302
1303 #if defined(XCB_USE_EGL)
1304 QXcbEGLSurface *QXcbWindow::eglSurface() const
1305 {
1306     if (!m_eglSurface) {
1307         EGLDisplay display = connection()->egl_display();
1308         EGLConfig config = q_configFromGLFormat(display, window()->requestedFormat(), true);
1309         EGLSurface surface = eglCreateWindowSurface(display, config, (EGLNativeWindowType)m_window, 0);
1310
1311         m_eglSurface = new QXcbEGLSurface(display, surface);
1312     }
1313
1314     return m_eglSurface;
1315 }
1316 #endif
1317
1318 void QXcbWindow::handleExposeEvent(const xcb_expose_event_t *event)
1319 {
1320     QRect rect(event->x, event->y, event->width, event->height);
1321
1322     if (m_exposeRegion.isEmpty())
1323         m_exposeRegion = rect;
1324     else
1325         m_exposeRegion |= rect;
1326
1327     // if count is non-zero there are more expose events pending
1328     if (event->count == 0) {
1329         QWindowSystemInterface::handleExposeEvent(window(), m_exposeRegion);
1330         m_exposeRegion = QRegion();
1331     }
1332 }
1333
1334 void QXcbWindow::handleClientMessageEvent(const xcb_client_message_event_t *event)
1335 {
1336     if (event->format != 32)
1337         return;
1338
1339     if (event->type == atom(QXcbAtom::WM_PROTOCOLS)) {
1340         if (event->data.data32[0] == atom(QXcbAtom::WM_DELETE_WINDOW)) {
1341             QWindowSystemInterface::handleCloseEvent(window());
1342         } else if (event->data.data32[0] == atom(QXcbAtom::WM_TAKE_FOCUS)) {
1343             connection()->setTime(event->data.data32[1]);
1344         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_PING)) {
1345             xcb_client_message_event_t reply = *event;
1346
1347             reply.response_type = XCB_CLIENT_MESSAGE;
1348             reply.window = m_screen->root();
1349
1350             xcb_send_event(xcb_connection(), 0, m_screen->root(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&reply);
1351             xcb_flush(xcb_connection());
1352         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_SYNC_REQUEST)) {
1353             connection()->setTime(event->data.data32[1]);
1354             m_syncValue.lo = event->data.data32[2];
1355             m_syncValue.hi = event->data.data32[3];
1356         } else {
1357             qWarning() << "QXcbWindow: Unhandled WM_PROTOCOLS message:" << connection()->atomName(event->data.data32[0]);
1358         }
1359 #ifndef QT_NO_DRAGANDDROP
1360     } else if (event->type == atom(QXcbAtom::XdndEnter)) {
1361         connection()->drag()->handleEnter(window(), event);
1362     } else if (event->type == atom(QXcbAtom::XdndPosition)) {
1363         connection()->drag()->handlePosition(window(), event);
1364     } else if (event->type == atom(QXcbAtom::XdndLeave)) {
1365         connection()->drag()->handleLeave(window(), event);
1366     } else if (event->type == atom(QXcbAtom::XdndDrop)) {
1367         connection()->drag()->handleDrop(window(), event);
1368 #endif
1369     } else if (event->type == atom(QXcbAtom::_XEMBED)) { // QSystemTrayIcon
1370     } else {
1371         qWarning() << "QXcbWindow: Unhandled client message:" << connection()->atomName(event->type);
1372     }
1373 }
1374
1375 void QXcbWindow::handleConfigureNotifyEvent(const xcb_configure_notify_event_t *event)
1376 {
1377     bool fromSendEvent = (event->response_type & 0x80);
1378     QPoint pos(event->x, event->y);
1379     if (!parent() && !fromSendEvent) {
1380         // Do not trust the position, query it instead.
1381         xcb_translate_coordinates_cookie_t cookie = xcb_translate_coordinates(xcb_connection(), xcb_window(),
1382                                                                               m_screen->root(), 0, 0);
1383         xcb_translate_coordinates_reply_t *reply = xcb_translate_coordinates_reply(xcb_connection(), cookie, NULL);
1384         if (reply) {
1385             pos.setX(reply->dst_x);
1386             pos.setY(reply->dst_y);
1387             free(reply);
1388         }
1389     }
1390
1391     QRect rect(pos, QSize(event->width, event->height));
1392
1393     QPlatformWindow::setGeometry(rect);
1394     QWindowSystemInterface::handleGeometryChange(window(), rect);
1395
1396     m_configureNotifyPending = false;
1397
1398     if (m_deferredExpose) {
1399         m_deferredExpose = false;
1400         QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
1401     }
1402
1403     m_dirtyFrameMargins = true;
1404
1405 #if XCB_USE_DRI2
1406     if (m_context)
1407         static_cast<QDri2Context *>(m_context)->resize(rect.size());
1408 #endif
1409 }
1410
1411 bool QXcbWindow::isExposed() const
1412 {
1413     return m_mapped;
1414 }
1415
1416 void QXcbWindow::handleMapNotifyEvent(const xcb_map_notify_event_t *event)
1417 {
1418     if (event->window == m_window) {
1419         m_mapped = true;
1420         if (m_deferredActivation)
1421             requestActivateWindow();
1422         if (m_configureNotifyPending)
1423             m_deferredExpose = true;
1424         else
1425             QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
1426     }
1427 }
1428
1429 void QXcbWindow::handleUnmapNotifyEvent(const xcb_unmap_notify_event_t *event)
1430 {
1431     if (event->window == m_window) {
1432         m_mapped = false;
1433         QWindowSystemInterface::handleExposeEvent(window(), QRegion());
1434     }
1435 }
1436
1437 static Qt::MouseButtons translateMouseButtons(int s)
1438 {
1439     Qt::MouseButtons ret = 0;
1440     if (s & XCB_BUTTON_MASK_1)
1441         ret |= Qt::LeftButton;
1442     if (s & XCB_BUTTON_MASK_2)
1443         ret |= Qt::MidButton;
1444     if (s & XCB_BUTTON_MASK_3)
1445         ret |= Qt::RightButton;
1446     return ret;
1447 }
1448
1449 static Qt::MouseButton translateMouseButton(xcb_button_t s)
1450 {
1451     switch (s) {
1452     case 1: return Qt::LeftButton;
1453     case 2: return Qt::MidButton;
1454     case 3: return Qt::RightButton;
1455     // Button values 4-7 were already handled as Wheel events, and won't occur here.
1456     case 8: return Qt::BackButton;      // Also known as Qt::ExtraButton1
1457     case 9: return Qt::ForwardButton;   // Also known as Qt::ExtraButton2
1458     case 10: return Qt::ExtraButton3;
1459     case 11: return Qt::ExtraButton4;
1460     case 12: return Qt::ExtraButton5;
1461     case 13: return Qt::ExtraButton6;
1462     case 14: return Qt::ExtraButton7;
1463     case 15: return Qt::ExtraButton8;
1464     case 16: return Qt::ExtraButton9;
1465     case 17: return Qt::ExtraButton10;
1466     case 18: return Qt::ExtraButton11;
1467     case 19: return Qt::ExtraButton12;
1468     case 20: return Qt::ExtraButton13;
1469     case 21: return Qt::ExtraButton14;
1470     case 22: return Qt::ExtraButton15;
1471     case 23: return Qt::ExtraButton16;
1472     case 24: return Qt::ExtraButton17;
1473     case 25: return Qt::ExtraButton18;
1474     case 26: return Qt::ExtraButton19;
1475     case 27: return Qt::ExtraButton20;
1476     case 28: return Qt::ExtraButton21;
1477     case 29: return Qt::ExtraButton22;
1478     case 30: return Qt::ExtraButton23;
1479     case 31: return Qt::ExtraButton24;
1480     default: return Qt::NoButton;
1481     }
1482 }
1483
1484 void QXcbWindow::handleButtonPressEvent(const xcb_button_press_event_t *event)
1485 {
1486     updateNetWmUserTime(event->time);
1487
1488     QPoint local(event->event_x, event->event_y);
1489     QPoint global(event->root_x, event->root_y);
1490
1491     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1492
1493     if (event->detail >= 4 && event->detail <= 7) {
1494         // Logic borrowed from qapplication_x11.cpp
1495         int delta = 120 * ((event->detail == 4 || event->detail == 6) ? 1 : -1);
1496         bool hor = (((event->detail == 4 || event->detail == 5)
1497                      && (modifiers & Qt::AltModifier))
1498                     || (event->detail == 6 || event->detail == 7));
1499
1500         QWindowSystemInterface::handleWheelEvent(window(), event->time,
1501                                                  local, global, delta, hor ? Qt::Horizontal : Qt::Vertical, modifiers);
1502         return;
1503     }
1504
1505     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1506 }
1507
1508 void QXcbWindow::handleButtonReleaseEvent(const xcb_button_release_event_t *event)
1509 {
1510     QPoint local(event->event_x, event->event_y);
1511     QPoint global(event->root_x, event->root_y);
1512     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1513
1514     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1515 }
1516
1517 void QXcbWindow::handleMotionNotifyEvent(const xcb_motion_notify_event_t *event)
1518 {
1519     QPoint local(event->event_x, event->event_y);
1520     QPoint global(event->root_x, event->root_y);
1521     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1522
1523     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1524 }
1525
1526 void QXcbWindow::handleMouseEvent(xcb_button_t detail, uint16_t state, xcb_timestamp_t time, const QPoint &local, const QPoint &global, Qt::KeyboardModifiers modifiers)
1527 {
1528     connection()->setTime(time);
1529
1530     Qt::MouseButtons buttons = translateMouseButtons(state);
1531     Qt::MouseButton button = translateMouseButton(detail);
1532
1533     buttons ^= button; // X event uses state *before*, Qt uses state *after*
1534
1535     QWindowSystemInterface::handleMouseEvent(window(), time, local, global, buttons, modifiers);
1536 }
1537
1538 void QXcbWindow::handleEnterNotifyEvent(const xcb_enter_notify_event_t *event)
1539 {
1540     connection()->setTime(event->time);
1541
1542     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1543         || event->detail == XCB_NOTIFY_DETAIL_VIRTUAL
1544         || event->detail == XCB_NOTIFY_DETAIL_NONLINEAR_VIRTUAL)
1545     {
1546         return;
1547     }
1548
1549     QWindowSystemInterface::handleEnterEvent(window());
1550 }
1551
1552 void QXcbWindow::handleLeaveNotifyEvent(const xcb_leave_notify_event_t *event)
1553 {
1554     connection()->setTime(event->time);
1555
1556     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1557         || event->detail == XCB_NOTIFY_DETAIL_INFERIOR)
1558     {
1559         return;
1560     }
1561
1562     QWindowSystemInterface::handleLeaveEvent(window());
1563 }
1564
1565 void QXcbWindow::handlePropertyNotifyEvent(const xcb_property_notify_event_t *event)
1566 {
1567     connection()->setTime(event->time);
1568
1569     const bool propertyDeleted = event->state == XCB_PROPERTY_DELETE;
1570     const xcb_atom_t netWmStateAtom = atom(QXcbAtom::_NET_WM_STATE);
1571     const xcb_atom_t wmStateAtom = atom(QXcbAtom::WM_STATE);
1572
1573     if (event->atom == netWmStateAtom || event->atom == wmStateAtom) {
1574         if (propertyDeleted)
1575             return;
1576
1577         Qt::WindowState newState = Qt::WindowNoState;
1578         if (event->atom == wmStateAtom) { // WM_STATE: Quick check for 'Minimize'.
1579             const xcb_get_property_cookie_t get_cookie =
1580                 xcb_get_property(xcb_connection(), 0, m_window, wmStateAtom,
1581                                  XCB_ATOM_ANY, 0, 1024);
1582
1583             xcb_get_property_reply_t *reply =
1584                 xcb_get_property_reply(xcb_connection(), get_cookie, NULL);
1585
1586             if (reply && reply->format == 32 && reply->type == wmStateAtom) {
1587                 const long *data = (const long *)xcb_get_property_value(reply);
1588                 if (reply->length != 0 && XCB_WM_STATE_ICONIC == data[0])
1589                     newState = Qt::WindowMinimized;
1590                 free(reply);
1591             }
1592         } // WM_STATE: Quick check for 'Minimize'.
1593         if (newState != Qt::WindowMinimized) { // Something else changed, get _NET_WM_STATE.
1594             const NetWmStates states = netWmStates();
1595             if ((states & NetWmStateMaximizedHorz) && (states & NetWmStateMaximizedVert))
1596                 newState = Qt::WindowMaximized;
1597             else if (states & NetWmStateFullScreen)
1598                 newState = Qt::WindowFullScreen;
1599         }
1600         // Send Window state, compress events in case other flags (modality, etc) are changed.
1601         if (m_lastWindowStateEvent != newState) {
1602             QWindowSystemInterface::handleWindowStateChanged(window(), newState);
1603             m_lastWindowStateEvent = newState;
1604         }
1605     }
1606 }
1607
1608 void QXcbWindow::handleFocusInEvent(const xcb_focus_in_event_t *)
1609 {
1610     QWindowSystemInterface::handleWindowActivated(window());
1611 }
1612
1613 static bool focusInPeeker(xcb_generic_event_t *event)
1614 {
1615     if (!event) {
1616         // FocusIn event is not in the queue, proceed with FocusOut normally.
1617         QWindowSystemInterface::handleWindowActivated(0);
1618         return true;
1619     }
1620     uint response_type = event->response_type & ~0x80;
1621     return response_type == XCB_FOCUS_IN;
1622 }
1623
1624 void QXcbWindow::handleFocusOutEvent(const xcb_focus_out_event_t *)
1625 {
1626     // Do not set the active window to 0 if there is a FocusIn coming.
1627     // There is however no equivalent for XPutBackEvent so register a
1628     // callback for QXcbConnection instead.
1629     connection()->addPeekFunc(focusInPeeker);
1630 }
1631
1632 void QXcbWindow::updateSyncRequestCounter()
1633 {
1634     if (m_screen->syncRequestSupported() && (m_syncValue.lo != 0 || m_syncValue.hi != 0)) {
1635         Q_XCB_CALL(xcb_sync_set_counter(xcb_connection(), m_syncCounter, m_syncValue));
1636         xcb_flush(xcb_connection());
1637         connection()->sync();
1638
1639         m_syncValue.lo = 0;
1640         m_syncValue.hi = 0;
1641     }
1642 }
1643
1644 bool QXcbWindow::setKeyboardGrabEnabled(bool grab)
1645 {
1646     if (!grab) {
1647         xcb_ungrab_keyboard(xcb_connection(), XCB_TIME_CURRENT_TIME);
1648         return true;
1649     }
1650     xcb_grab_keyboard_cookie_t cookie = xcb_grab_keyboard(xcb_connection(), false,
1651                                                           m_window, XCB_TIME_CURRENT_TIME,
1652                                                           XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
1653     xcb_grab_keyboard_reply_t *reply = xcb_grab_keyboard_reply(xcb_connection(), cookie, NULL);
1654     bool result = !(!reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1655     free(reply);
1656     return result;
1657 }
1658
1659 bool QXcbWindow::setMouseGrabEnabled(bool grab)
1660 {
1661     if (!grab) {
1662         xcb_ungrab_pointer(xcb_connection(), XCB_TIME_CURRENT_TIME);
1663         return true;
1664     }
1665     xcb_grab_pointer_cookie_t cookie = xcb_grab_pointer(xcb_connection(), false, m_window,
1666                                                         (XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE
1667                                                          | XCB_EVENT_MASK_BUTTON_MOTION | XCB_EVENT_MASK_ENTER_WINDOW
1668                                                          | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_POINTER_MOTION),
1669                                                         XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC,
1670                                                         XCB_WINDOW_NONE, XCB_CURSOR_NONE,
1671                                                         XCB_TIME_CURRENT_TIME);
1672     xcb_grab_pointer_reply_t *reply = xcb_grab_pointer_reply(xcb_connection(), cookie, NULL);
1673     bool result = !(!reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1674     free(reply);
1675     return result;
1676 }
1677
1678 void QXcbWindow::setCursor(xcb_cursor_t cursor)
1679 {
1680     xcb_change_window_attributes(xcb_connection(), m_window, XCB_CW_CURSOR, &cursor);
1681     xcb_flush(xcb_connection());
1682 }
1683
1684 bool QXcbWindow::startSystemResize(const QPoint &pos, Qt::Corner corner)
1685 {
1686     const xcb_atom_t moveResize = connection()->atom(QXcbAtom::_NET_WM_MOVERESIZE);
1687     if (!connection()->wmSupport()->isSupportedByWM(moveResize))
1688         return false;
1689     xcb_client_message_event_t xev;
1690     xev.response_type = XCB_CLIENT_MESSAGE;
1691     xev.type = moveResize;
1692     xev.window = xcb_window();
1693     xev.format = 32;
1694     const QPoint globalPos = window()->mapToGlobal(pos);
1695     xev.data.data32[0] = globalPos.x();
1696     xev.data.data32[1] = globalPos.y();
1697     const bool bottom = corner == Qt::BottomRightCorner || corner == Qt::BottomLeftCorner;
1698     const bool left = corner == Qt::BottomLeftCorner || corner == Qt::TopLeftCorner;
1699     if (bottom)
1700         xev.data.data32[2] = left ? 6 : 4; // bottomleft/bottomright
1701     else
1702         xev.data.data32[2] = left ? 0 : 2; // topleft/topright
1703     xev.data.data32[3] = XCB_BUTTON_INDEX_1;
1704     xev.data.data32[4] = 0;
1705     xcb_ungrab_pointer(connection()->xcb_connection(), XCB_CURRENT_TIME);
1706     xcb_send_event(connection()->xcb_connection(), false, m_screen->root(),
1707                    XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY,
1708                    (const char *)&xev);
1709     return true;
1710 }
1711
1712 #if !defined(QT_NO_SHAPE)
1713
1714 static inline xcb_rectangle_t qRectToXCBRectangle(const QRect &r)
1715 {
1716     xcb_rectangle_t result;
1717     result.x = qMax(SHRT_MIN, r.x());
1718     result.y = qMax(SHRT_MIN, r.y());
1719     result.width = qMin((int)USHRT_MAX, r.width());
1720     result.height = qMin((int)USHRT_MAX, r.height());
1721     return result;
1722 }
1723
1724 void QXcbWindow::setMask(const QRegion &region)
1725 {
1726     if (!connection()->hasXShape())
1727         return;
1728     if (region.isEmpty()) {
1729         xcb_shape_mask(connection()->xcb_connection(), XCB_SHAPE_SO_SET,
1730                        XCB_SHAPE_SK_BOUNDING, xcb_window(), 0, 0, XCB_NONE);
1731     } else {
1732         QVector<xcb_rectangle_t> rects;
1733         foreach (const QRect &r, region.rects())
1734             rects.push_back(qRectToXCBRectangle(r));
1735         xcb_shape_rectangles(connection()->xcb_connection(), XCB_SHAPE_SO_SET,
1736                              XCB_SHAPE_SK_BOUNDING, XCB_CLIP_ORDERING_UNSORTED,
1737                              xcb_window(), 0, 0, rects.size(), &rects[0]);
1738     }
1739 }
1740
1741 #endif // !QT_NO_SHAPE
1742
1743 QT_END_NAMESPACE