src/plugins/platforms/xcb/qxcbwindow.cpp

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  41
  42 #include "qxcbwindow.h"
  43
  44 #include <QtDebug>
  45 #include <QScreen>
  46
  47 #include "qxcbconnection.h"
  48 #include "qxcbscreen.h"
  49 #include "qxcbdrag.h"
  50 #include "qxcbwmsupport.h"
  51
  52 #ifdef XCB_USE_DRI2
  53 #include "qdri2context.h"
  54 #endif
  55
  56 #define class class_name // Yeah, in 2011 ...
  57 #include <xcb/xcb_icccm.h>
  58 #undef class
  59
  60 // xcb-icccm 3.8 support
  61 #ifdef XCB_ICCCM_NUM_WM_SIZE_HINTS_ELEMENTS
  62 #define xcb_wm_hints_t xcb_icccm_wm_hints_t
  63 #define xcb_wm_hints_set_iconic xcb_icccm_wm_hints_set_iconic
  64 #define xcb_wm_hints_set_normal xcb_icccm_wm_hints_set_normal
  65 #define xcb_set_wm_hints xcb_icccm_set_wm_hints
  66 #endif
  67
  68 #include <private/qguiapplication_p.h>
  69 #include <private/qwindow_p.h>
  70
  71 #include <QtGui/QPlatformBackingStore>
  72 #include <QtGui/QWindowSystemInterface>
  73
  74 #include <stdio.h>
  75
  76 #ifdef XCB_USE_XLIB
  77 #include <X11/Xlib.h>
  78 #include <X11/Xutil.h>
  79 #endif
  80
  81 #if defined(XCB_USE_GLX)
  82 #include "qglxintegration.h"
  83 #include <QtPlatformSupport/private/qglxconvenience_p.h>
  84 #elif defined(XCB_USE_EGL)
  85 #include "qxcbeglsurface.h"
  86 #include <QtPlatformSupport/private/qeglconvenience_p.h>
  87 #include <QtPlatformSupport/private/qxlibeglintegration_p.h>
  88 #endif
  89
  90 #define XCOORD_MAX 16383
  91
  92 //#ifdef NET_WM_STATE_DEBUG
  93
  94 // Returns true if we should set WM_TRANSIENT_FOR on \a w
  95 static inline bool isTransient(const QWindow *w)
  96 {
  97     return w->windowType() == Qt::Dialog
  98            || w->windowType() == Qt::Sheet
  99            || w->windowType() == Qt::Tool
 100            || w->windowType() == Qt::SplashScreen
 101            || w->windowType() == Qt::ToolTip
 102            || w->windowType() == Qt::Drawer
 103            || w->windowType() == Qt::Popup;
 104 }
 105
 106 QXcbWindow::QXcbWindow(QWindow *window)
 107     : QPlatformWindow(window)
 108     , m_window(0)
 109     , m_syncCounter(0)
 110     , m_mapped(false)
 111     , m_netWmUserTimeWindow(XCB_NONE)
 112 #if defined(XCB_USE_EGL)
 113     , m_eglSurface(0)
 114 #endif
 115 {
 116     m_screen = static_cast<QXcbScreen *>(window->screen()->handle());
 117
 118     setConnection(m_screen->connection());
 119
 120     create();
 121 }
 122
 123 void QXcbWindow::create()
 124 {
 125     destroy();
 126
 127     m_windowState = Qt::WindowNoState;
 128     m_dirtyFrameMargins = true;
 129
 130     Qt::WindowType type = window()->windowType();
 131
 132     if (type == Qt::Desktop) {
 133         m_window = m_screen->root();
 134         m_depth = m_screen->screen()->root_depth;
 135         m_imageFormat = (m_depth == 32) ? QImage::Format_ARGB32_Premultiplied : QImage::Format_RGB32;
 136         connection()->addWindow(m_window, this);
 137         return;
 138     }
 139
 140     const quint32 mask = XCB_CW_BACK_PIXMAP | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_SAVE_UNDER | XCB_CW_EVENT_MASK;
 141     const quint32 values[] = {
 142         // XCB_CW_BACK_PIXMAP
 143         XCB_NONE,
 144         // XCB_CW_OVERRIDE_REDIRECT
 145         type == Qt::Popup || type == Qt::ToolTip,
 146         // XCB_CW_SAVE_UNDER
 147         type == Qt::Popup || type == Qt::Tool || type == Qt::SplashScreen || type == Qt::ToolTip || type == Qt::Drawer,
 148         // XCB_CW_EVENT_MASK
 149         XCB_EVENT_MASK_EXPOSURE
 150         | XCB_EVENT_MASK_STRUCTURE_NOTIFY
 151         | XCB_EVENT_MASK_KEY_PRESS
 152         | XCB_EVENT_MASK_KEY_RELEASE
 153         | XCB_EVENT_MASK_BUTTON_PRESS
 154         | XCB_EVENT_MASK_BUTTON_RELEASE
 155         | XCB_EVENT_MASK_BUTTON_MOTION
 156         | XCB_EVENT_MASK_ENTER_WINDOW
 157         | XCB_EVENT_MASK_LEAVE_WINDOW
 158         | XCB_EVENT_MASK_POINTER_MOTION
 159         | XCB_EVENT_MASK_PROPERTY_CHANGE
 160         | XCB_EVENT_MASK_FOCUS_CHANGE
 161     };
 162
 163     QRect rect = window()->geometry();
 164     QPlatformWindow::setGeometry(rect);
 165
 166     rect.setWidth(qBound(1, rect.width(), XCOORD_MAX));
 167     rect.setHeight(qBound(1, rect.height(), XCOORD_MAX));
 168
 169     xcb_window_t xcb_parent_id = m_screen->root();
 170     if (parent())
 171         xcb_parent_id = static_cast<QXcbWindow *>(parent())->xcb_window();
 172
 173     m_requestedFormat = window()->format();
 174
 175 #if (defined(XCB_USE_GLX) || defined(XCB_USE_EGL)) && defined(XCB_USE_XLIB)
 176     if (QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::OpenGL)
 177         || window()->format().hasAlpha())
 178     {
 179 #if defined(XCB_USE_GLX)
 180         XVisualInfo *visualInfo = qglx_findVisualInfo(DISPLAY_FROM_XCB(m_screen),m_screen->screenNumber(), window()->format());
 181
 182 #elif defined(XCB_USE_EGL)
 183         EGLDisplay eglDisplay = connection()->egl_display();
 184         EGLConfig eglConfig = q_configFromGLFormat(eglDisplay, window()->format(), true);
 185         VisualID id = QXlibEglIntegration::getCompatibleVisualId(DISPLAY_FROM_XCB(this), eglDisplay, eglConfig);
 186
 187         XVisualInfo visualInfoTemplate;
 188         memset(&visualInfoTemplate, 0, sizeof(XVisualInfo));
 189         visualInfoTemplate.visualid = id;
 190
 191         XVisualInfo *visualInfo;
 192         int matchingCount = 0;
 193         visualInfo = XGetVisualInfo(DISPLAY_FROM_XCB(this), VisualIDMask, &visualInfoTemplate, &matchingCount);
 194 #endif //XCB_USE_GLX
 195         if (visualInfo) {
 196             m_depth = visualInfo->depth;
 197             m_imageFormat = (m_depth == 32) ? QImage::Format_ARGB32_Premultiplied : QImage::Format_RGB32;
 198             Colormap cmap = XCreateColormap(DISPLAY_FROM_XCB(this), xcb_parent_id, visualInfo->visual, AllocNone);
 199
 200             XSetWindowAttributes a;
 201             a.background_pixel = WhitePixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 202             a.border_pixel = BlackPixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 203             a.colormap = cmap;
 204             m_window = XCreateWindow(DISPLAY_FROM_XCB(this), xcb_parent_id, rect.x(), rect.y(), rect.width(), rect.height(),
 205                                       0, visualInfo->depth, InputOutput, visualInfo->visual,
 206                                       CWBackPixel|CWBorderPixel|CWColormap, &a);
 207         } else {
 208             qFatal("no window!");
 209         }
 210     } else
 211 #endif //defined(XCB_USE_GLX) || defined(XCB_USE_EGL)
 212     {
 213         m_window = xcb_generate_id(xcb_connection());
 214         m_depth = m_screen->screen()->root_depth;
 215         m_imageFormat = (m_depth == 32) ? QImage::Format_ARGB32_Premultiplied : QImage::Format_RGB32;
 216
 217         Q_XCB_CALL(xcb_create_window(xcb_connection(),
 218                                      XCB_COPY_FROM_PARENT,            // depth -- same as root
 219                                      m_window,                        // window id
 220                                      xcb_parent_id,                   // parent window id
 221                                      rect.x(),
 222                                      rect.y(),
 223                                      rect.width(),
 224                                      rect.height(),
 225                                      0,                               // border width
 226                                      XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
 227                                      m_screen->screen()->root_visual, // visual
 228                                      0,                               // value mask
 229                                      0));                             // value list
 230     }
 231
 232     connection()->addWindow(m_window, this);
 233
 234     Q_XCB_CALL(xcb_change_window_attributes(xcb_connection(), m_window, mask, values));
 235
 236     xcb_atom_t properties[4];
 237     int propertyCount = 0;
 238     properties[propertyCount++] = atom(QXcbAtom::WM_DELETE_WINDOW);
 239     properties[propertyCount++] = atom(QXcbAtom::WM_TAKE_FOCUS);
 240     properties[propertyCount++] = atom(QXcbAtom::_NET_WM_PING);
 241
 242     if (m_screen->syncRequestSupported())
 243         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_SYNC_REQUEST);
 244
 245     if (window()->windowFlags() & Qt::WindowContextHelpButtonHint)
 246         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_CONTEXT_HELP);
 247
 248     Q_XCB_CALL(xcb_change_property(xcb_connection(),
 249                                    XCB_PROP_MODE_REPLACE,
 250                                    m_window,
 251                                    atom(QXcbAtom::WM_PROTOCOLS),
 252                                    XCB_ATOM_ATOM,
 253                                    32,
 254                                    propertyCount,
 255                                    properties));
 256     m_syncValue.hi = 0;
 257     m_syncValue.lo = 0;
 258
 259     if (m_screen->syncRequestSupported()) {
 260         m_syncCounter = xcb_generate_id(xcb_connection());
 261         Q_XCB_CALL(xcb_sync_create_counter(xcb_connection(), m_syncCounter, m_syncValue));
 262
 263         Q_XCB_CALL(xcb_change_property(xcb_connection(),
 264                                        XCB_PROP_MODE_REPLACE,
 265                                        m_window,
 266                                        atom(QXcbAtom::_NET_WM_SYNC_REQUEST_COUNTER),
 267                                        XCB_ATOM_CARDINAL,
 268                                        32,
 269                                        1,
 270                                        &m_syncCounter));
 271     }
 272
 273     // set the PID to let the WM kill the application if unresponsive
 274     long pid = getpid();
 275     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 276                                    atom(QXcbAtom::_NET_WM_PID), XCB_ATOM_CARDINAL, 32,
 277                                    1, &pid));
 278
 279     xcb_wm_hints_t hints;
 280     memset(&hints, 0, sizeof(hints));
 281     xcb_wm_hints_set_normal(&hints);
 282
 283     xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 284
 285     xcb_window_t leader = m_screen->clientLeader();
 286     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 287                                    atom(QXcbAtom::WM_CLIENT_LEADER), XCB_ATOM_WINDOW, 32,
 288                                    1, &leader));
 289
 290     setWindowFlags(window()->windowFlags());
 291     setWindowTitle(window()->windowTitle());
 292     setWindowState(window()->windowState());
 293
 294     connection()->drag()->dndEnable(this, true);
 295 }
 296
 297 QXcbWindow::~QXcbWindow()
 298 {
 299     destroy();
 300 }
 301
 302 void QXcbWindow::destroy()
 303 {
 304     if (m_syncCounter && m_screen->syncRequestSupported())
 305         Q_XCB_CALL(xcb_sync_destroy_counter(xcb_connection(), m_syncCounter));
 306     if (m_window) {
 307         connection()->removeWindow(m_window);
 308         Q_XCB_CALL(xcb_destroy_window(xcb_connection(), m_window));
 309     }
 310     m_mapped = false;
 311
 312 #if defined(XCB_USE_EGL)
 313     delete m_eglSurface;
 314     m_eglSurface = 0;
 315 #endif
 316 }
 317
 318 void QXcbWindow::setGeometry(const QRect &rect)
 319 {
 320     QPlatformWindow::setGeometry(rect);
 321
 322     const quint32 mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
 323     const quint32 values[] = { rect.x(),
 324                                rect.y(),
 325                                qBound(1, rect.width(), XCOORD_MAX),
 326                                qBound(1, rect.height(), XCOORD_MAX) };
 327
 328     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
 329 }
 330
 331 QMargins QXcbWindow::frameMargins() const
 332 {
 333     if (m_dirtyFrameMargins) {
 334         xcb_window_t window = m_window;
 335         xcb_window_t parent = m_window;
 336
 337         bool foundRoot = false;
 338
 339         const QVector<xcb_window_t> &virtualRoots =
 340             connection()->wmSupport()->virtualRoots();
 341
 342         while (!foundRoot) {
 343             xcb_query_tree_cookie_t cookie = xcb_query_tree(xcb_connection(), parent);
 344
 345             xcb_generic_error_t *error;
 346             xcb_query_tree_reply_t *reply = xcb_query_tree_reply(xcb_connection(), cookie, &error);
 347             if (reply) {
 348                 if (reply->root == reply->parent || virtualRoots.indexOf(reply->parent) != -1) {
 349                     foundRoot = true;
 350                 } else {
 351                     window = parent;
 352                     parent = reply->parent;
 353                 }
 354
 355                 free(reply);
 356             } else {
 357                 if (error) {
 358                     connection()->handleXcbError(error);
 359                     free(error);
 360                 }
 361
 362                 m_dirtyFrameMargins = false;
 363                 m_frameMargins = QMargins();
 364                 return m_frameMargins;
 365             }
 366         }
 367
 368         QPoint offset;
 369
 370         xcb_generic_error_t *error;
 371         xcb_translate_coordinates_reply_t *reply =
 372             xcb_translate_coordinates_reply(
 373                 xcb_connection(),
 374                 xcb_translate_coordinates(xcb_connection(), window, parent, 0, 0),
 375                 &error);
 376
 377         if (reply) {
 378             offset = QPoint(reply->dst_x, reply->dst_y);
 379             free(reply);
 380         } else if (error) {
 381             free(error);
 382         }
 383
 384         xcb_get_geometry_reply_t *geom =
 385             xcb_get_geometry_reply(
 386                 xcb_connection(),
 387                 xcb_get_geometry(xcb_connection(), parent),
 388                 &error);
 389
 390         if (geom) {
 391             // --
 392             // add the border_width for the window managers frame... some window managers
 393             // do not use a border_width of zero for their frames, and if we the left and
 394             // top strut, we ensure that pos() is absolutely correct.  frameGeometry()
 395             // will still be incorrect though... perhaps i should have foffset as well, to
 396             // indicate the frame offset (equal to the border_width on X).
 397             // - Brad
 398             // -- copied from qwidget_x11.cpp
 399
 400             int left = offset.x() + geom->border_width;
 401             int top = offset.y() + geom->border_width;
 402             int right = geom->width + geom->border_width - geometry().width() - offset.x();
 403             int bottom = geom->height + geom->border_width - geometry().height() - offset.y();
 404
 405             m_frameMargins = QMargins(left, top, right, bottom);
 406
 407             free(geom);
 408         } else if (error) {
 409             free(error);
 410         }
 411
 412         m_dirtyFrameMargins = false;
 413     }
 414
 415     return m_frameMargins;
 416 }
 417
 418 void QXcbWindow::setVisible(bool visible)
 419 {
 420     if (visible)
 421         show();
 422     else
 423         hide();
 424 }
 425
 426 void QXcbWindow::show()
 427 {
 428     if (window()->isTopLevel()) {
 429         xcb_get_property_cookie_t cookie = xcb_get_wm_hints(xcb_connection(), m_window);
 430
 431         xcb_generic_error_t *error;
 432
 433         xcb_wm_hints_t hints;
 434         xcb_get_wm_hints_reply(xcb_connection(), cookie, &hints, &error);
 435
 436         if (error) {
 437             connection()->handleXcbError(error);
 438             free(error);
 439         }
 440
 441         m_dirtyFrameMargins = true;
 442
 443         if (window()->windowState() & Qt::WindowMinimized)
 444             xcb_wm_hints_set_iconic(&hints);
 445         else
 446             xcb_wm_hints_set_normal(&hints);
 447
 448         xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 449
 450         // update WM_NORMAL_HINTS
 451         propagateSizeHints();
 452
 453         // update WM_TRANSIENT_FOR
 454         if (window()->transientParent() && isTransient(window())) {
 455             QXcbWindow *transientXcbParent = static_cast<QXcbWindow *>(window()->transientParent()->handle());
 456             if (transientXcbParent) {
 457                 // ICCCM 4.1.2.6
 458                 xcb_window_t parentWindow = transientXcbParent->xcb_window();
 459
 460                 // todo: set transient for group (wm_client_leader) if no parent, a la qwidget_x11.cpp
 461                 Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 462                                                XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, 32,
 463                                                1, &parentWindow));
 464             }
 465         }
 466
 467         // update _MOTIF_WM_HINTS
 468         updateMotifWmHintsBeforeMap();
 469
 470         // update _NET_WM_STATE
 471         updateNetWmStateBeforeMap();
 472     }
 473
 474     Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 475     xcb_flush(xcb_connection());
 476
 477     connection()->sync();
 478 }
 479
 480 void QXcbWindow::hide()
 481 {
 482     Q_XCB_CALL(xcb_unmap_window(xcb_connection(), m_window));
 483
 484     // send synthetic UnmapNotify event according to icccm 4.1.4
 485     xcb_unmap_notify_event_t event;
 486     event.response_type = XCB_UNMAP_NOTIFY;
 487     event.event = m_screen->root();
 488     event.window = m_window;
 489     event.from_configure = false;
 490     Q_XCB_CALL(xcb_send_event(xcb_connection(), false, m_screen->root(),
 491                               XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&event));
 492
 493     xcb_flush(xcb_connection());
 494
 495     m_mapped = false;
 496 }
 497
 498 struct QtMotifWmHints {
 499     quint32 flags, functions, decorations;
 500     qint32 input_mode;
 501     quint32 status;
 502 };
 503
 504 enum {
 505     MWM_HINTS_FUNCTIONS   = (1L << 0),
 506
 507     MWM_FUNC_ALL      = (1L << 0),
 508     MWM_FUNC_RESIZE   = (1L << 1),
 509     MWM_FUNC_MOVE     = (1L << 2),
 510     MWM_FUNC_MINIMIZE = (1L << 3),
 511     MWM_FUNC_MAXIMIZE = (1L << 4),
 512     MWM_FUNC_CLOSE    = (1L << 5),
 513
 514     MWM_HINTS_DECORATIONS = (1L << 1),
 515
 516     MWM_DECOR_ALL      = (1L << 0),
 517     MWM_DECOR_BORDER   = (1L << 1),
 518     MWM_DECOR_RESIZEH  = (1L << 2),
 519     MWM_DECOR_TITLE    = (1L << 3),
 520     MWM_DECOR_MENU     = (1L << 4),
 521     MWM_DECOR_MINIMIZE = (1L << 5),
 522     MWM_DECOR_MAXIMIZE = (1L << 6),
 523
 524     MWM_HINTS_INPUT_MODE = (1L << 2),
 525
 526     MWM_INPUT_MODELESS                  = 0L,
 527     MWM_INPUT_PRIMARY_APPLICATION_MODAL = 1L,
 528     MWM_INPUT_FULL_APPLICATION_MODAL    = 3L
 529 };
 530
 531 static QtMotifWmHints getMotifWmHints(QXcbConnection *c, xcb_window_t window)
 532 {
 533     QtMotifWmHints hints;
 534
 535     xcb_get_property_cookie_t get_cookie =
 536         xcb_get_property(c->xcb_connection(), 0, window, c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 537                          c->atom(QXcbAtom::_MOTIF_WM_HINTS), 0, 20);
 538
 539     xcb_generic_error_t *error;
 540
 541     xcb_get_property_reply_t *reply =
 542         xcb_get_property_reply(c->xcb_connection(), get_cookie, &error);
 543
 544     if (reply && reply->format == 32 && reply->type == c->atom(QXcbAtom::_MOTIF_WM_HINTS)) {
 545         hints = *((QtMotifWmHints *)xcb_get_property_value(reply));
 546     } else if (error) {
 547         c->handleXcbError(error);
 548         free(error);
 549
 550         hints.flags = 0L;
 551         hints.functions = MWM_FUNC_ALL;
 552         hints.decorations = MWM_DECOR_ALL;
 553         hints.input_mode = 0L;
 554         hints.status = 0L;
 555     }
 556
 557     free(reply);
 558
 559     return hints;
 560 }
 561
 562 static void setMotifWmHints(QXcbConnection *c, xcb_window_t window, const QtMotifWmHints &hints)
 563 {
 564     if (hints.flags != 0l) {
 565         Q_XCB_CALL2(xcb_change_property(c->xcb_connection(),
 566                                        XCB_PROP_MODE_REPLACE,
 567                                        window,
 568                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 569                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 570                                        32,
 571                                        5,
 572                                        &hints), c);
 573     } else {
 574         Q_XCB_CALL2(xcb_delete_property(c->xcb_connection(), window, c->atom(QXcbAtom::_MOTIF_WM_HINTS)), c);
 575     }
 576 }
 577
 578 void QXcbWindow::printNetWmState(const QVector<xcb_atom_t> &state)
 579 {
 580     printf("_NET_WM_STATE (%d): ", state.size());
 581     for (int i = 0; i < state.size(); ++i) {
 582 #define CHECK_WM_STATE(state_atom) \
 583         if (state.at(i) == atom(QXcbAtom::state_atom))\
 584             printf(#state_atom " ");
 585         CHECK_WM_STATE(_NET_WM_STATE_ABOVE)
 586         CHECK_WM_STATE(_NET_WM_STATE_BELOW)
 587         CHECK_WM_STATE(_NET_WM_STATE_FULLSCREEN)
 588         CHECK_WM_STATE(_NET_WM_STATE_MAXIMIZED_HORZ)
 589         CHECK_WM_STATE(_NET_WM_STATE_MAXIMIZED_VERT)
 590         CHECK_WM_STATE(_NET_WM_STATE_MODAL)
 591         CHECK_WM_STATE(_NET_WM_STATE_STAYS_ON_TOP)
 592         CHECK_WM_STATE(_NET_WM_STATE_DEMANDS_ATTENTION)
 593 #undef CHECK_WM_STATE
 594     }
 595     printf("\n");
 596 }
 597
 598 QVector<xcb_atom_t> QXcbWindow::getNetWmState()
 599 {
 600     QVector<xcb_atom_t> result;
 601
 602     xcb_get_property_cookie_t get_cookie =
 603         xcb_get_property(xcb_connection(), 0, m_window, atom(QXcbAtom::_NET_WM_STATE),
 604                          XCB_ATOM_ATOM, 0, 1024);
 605
 606     xcb_generic_error_t *error;
 607
 608     xcb_get_property_reply_t *reply =
 609         xcb_get_property_reply(xcb_connection(), get_cookie, &error);
 610
 611     if (reply && reply->format == 32 && reply->type == XCB_ATOM_ATOM) {
 612         result.resize(reply->length);
 613
 614         memcpy(result.data(), xcb_get_property_value(reply), reply->length * sizeof(xcb_atom_t));
 615
 616 #ifdef NET_WM_STATE_DEBUG
 617         printf("getting net wm state (%x)\n", m_window);
 618         printNetWmState(result);
 619 #endif
 620
 621         free(reply);
 622     } else if (error) {
 623         connection()->handleXcbError(error);
 624         free(error);
 625     } else {
 626 #ifdef NET_WM_STATE_DEBUG
 627         printf("getting net wm state (%x), empty\n", m_window);
 628 #endif
 629     }
 630
 631     return result;
 632 }
 633
 634 void QXcbWindow::setNetWmState(const QVector<xcb_atom_t> &atoms)
 635 {
 636     if (atoms.isEmpty()) {
 637         Q_XCB_CALL(xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_STATE)));
 638     } else {
 639         Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 640                                        atom(QXcbAtom::_NET_WM_STATE), XCB_ATOM_ATOM, 32,
 641                                        atoms.count(), atoms.constData()));
 642     }
 643     xcb_flush(xcb_connection());
 644 }
 645
 646
 647 Qt::WindowFlags QXcbWindow::setWindowFlags(Qt::WindowFlags flags)
 648 {
 649     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 650
 651     if (type == Qt::ToolTip)
 652         flags |= Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint;
 653     if (type == Qt::Popup)
 654         flags |= Qt::X11BypassWindowManagerHint;
 655
 656     setNetWmWindowFlags(flags);
 657     setMotifWindowFlags(flags);
 658
 659     return flags;
 660 }
 661
 662 void QXcbWindow::setMotifWindowFlags(Qt::WindowFlags flags)
 663 {
 664     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 665
 666     QtMotifWmHints mwmhints;
 667     mwmhints.flags = 0L;
 668     mwmhints.functions = 0L;
 669     mwmhints.decorations = 0;
 670     mwmhints.input_mode = 0L;
 671     mwmhints.status = 0L;
 672
 673     if (type != Qt::SplashScreen) {
 674         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 675
 676         bool customize = flags & Qt::CustomizeWindowHint;
 677         if (!(flags & Qt::FramelessWindowHint) && !(customize && !(flags & Qt::WindowTitleHint))) {
 678             mwmhints.decorations |= MWM_DECOR_BORDER;
 679             mwmhints.decorations |= MWM_DECOR_RESIZEH;
 680
 681             if (flags & Qt::WindowTitleHint)
 682                 mwmhints.decorations |= MWM_DECOR_TITLE;
 683
 684             if (flags & Qt::WindowSystemMenuHint)
 685                 mwmhints.decorations |= MWM_DECOR_MENU;
 686
 687             if (flags & Qt::WindowMinimizeButtonHint) {
 688                 mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 689                 mwmhints.functions |= MWM_FUNC_MINIMIZE;
 690             }
 691
 692             if (flags & Qt::WindowMaximizeButtonHint) {
 693                 mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 694                 mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 695             }
 696
 697             if (flags & Qt::WindowCloseButtonHint)
 698                 mwmhints.functions |= MWM_FUNC_CLOSE;
 699         }
 700     } else {
 701         // if type == Qt::SplashScreen
 702         mwmhints.decorations = MWM_DECOR_ALL;
 703     }
 704
 705     if (mwmhints.functions != 0) {
 706         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 707         mwmhints.functions |= MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 708     } else {
 709         mwmhints.functions = MWM_FUNC_ALL;
 710     }
 711
 712     if (!(flags & Qt::FramelessWindowHint)
 713         && flags & Qt::CustomizeWindowHint
 714         && flags & Qt::WindowTitleHint
 715         && !(flags &
 716              (Qt::WindowMinimizeButtonHint
 717               | Qt::WindowMaximizeButtonHint
 718               | Qt::WindowCloseButtonHint)))
 719     {
 720         // a special case - only the titlebar without any button
 721         mwmhints.flags = MWM_HINTS_FUNCTIONS;
 722         mwmhints.functions = MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 723         mwmhints.decorations = 0;
 724     }
 725
 726     setMotifWmHints(connection(), m_window, mwmhints);
 727 }
 728
 729 void QXcbWindow::changeNetWmState(bool set, xcb_atom_t one, xcb_atom_t two)
 730 {
 731     xcb_client_message_event_t event;
 732
 733     event.response_type = XCB_CLIENT_MESSAGE;
 734     event.format = 32;
 735     event.window = m_window;
 736     event.type = atom(QXcbAtom::_NET_WM_STATE);
 737     event.data.data32[0] = set ? 1 : 0;
 738     event.data.data32[1] = one;
 739     event.data.data32[2] = two;
 740     event.data.data32[3] = 0;
 741     event.data.data32[4] = 0;
 742
 743     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));
 744 }
 745
 746 Qt::WindowState QXcbWindow::setWindowState(Qt::WindowState state)
 747 {
 748     if (state == m_windowState)
 749         return state;
 750
 751     m_dirtyFrameMargins = true;
 752
 753     // unset old state
 754     switch (m_windowState) {
 755     case Qt::WindowMinimized:
 756         Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 757         break;
 758     case Qt::WindowMaximized:
 759         changeNetWmState(false,
 760                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 761                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 762         break;
 763     case Qt::WindowFullScreen:
 764         changeNetWmState(false, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 765         break;
 766     default:
 767         break;
 768     }
 769
 770     // set new state
 771     switch (state) {
 772     case Qt::WindowMinimized:
 773         {
 774             xcb_client_message_event_t event;
 775
 776             event.response_type = XCB_CLIENT_MESSAGE;
 777             event.format = 32;
 778             event.window = m_window;
 779             event.type = atom(QXcbAtom::WM_CHANGE_STATE);
 780             event.data.data32[0] = XCB_WM_STATE_ICONIC;
 781             event.data.data32[1] = 0;
 782             event.data.data32[2] = 0;
 783             event.data.data32[3] = 0;
 784             event.data.data32[4] = 0;
 785
 786             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));
 787         }
 788         break;
 789     case Qt::WindowMaximized:
 790         changeNetWmState(true,
 791                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 792                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 793         break;
 794     case Qt::WindowFullScreen:
 795         changeNetWmState(true, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 796         break;
 797     case Qt::WindowNoState:
 798         break;
 799     default:
 800         break;
 801     }
 802
 803     connection()->sync();
 804
 805     m_windowState = state;
 806     return m_windowState;
 807 }
 808
 809 void QXcbWindow::setNetWmWindowFlags(Qt::WindowFlags flags)
 810 {
 811     // in order of decreasing priority
 812     QVector<uint> windowTypes;
 813
 814     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 815
 816     switch (type) {
 817     case Qt::Dialog:
 818     case Qt::Sheet:
 819         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_DIALOG));
 820         break;
 821     case Qt::Tool:
 822     case Qt::Drawer:
 823         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_UTILITY));
 824         break;
 825     case Qt::ToolTip:
 826         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_TOOLTIP));
 827         break;
 828     case Qt::SplashScreen:
 829         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_SPLASH));
 830         break;
 831     default:
 832         break;
 833     }
 834
 835     if (flags & Qt::FramelessWindowHint)
 836         windowTypes.append(atom(QXcbAtom::_KDE_NET_WM_WINDOW_TYPE_OVERRIDE));
 837
 838     windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_NORMAL));
 839
 840     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 841                                    atom(QXcbAtom::_NET_WM_WINDOW_TYPE), XCB_ATOM_ATOM, 32,
 842                                    windowTypes.count(), windowTypes.constData()));
 843 }
 844
 845 void QXcbWindow::updateMotifWmHintsBeforeMap()
 846 {
 847     QtMotifWmHints mwmhints = getMotifWmHints(connection(), m_window);
 848
 849     if (window()->windowModality() != Qt::NonModal) {
 850         switch (window()->windowModality()) {
 851         case Qt::WindowModal:
 852             mwmhints.input_mode = MWM_INPUT_PRIMARY_APPLICATION_MODAL;
 853             break;
 854         case Qt::ApplicationModal:
 855         default:
 856             mwmhints.input_mode = MWM_INPUT_FULL_APPLICATION_MODAL;
 857             break;
 858         }
 859         mwmhints.flags |= MWM_HINTS_INPUT_MODE;
 860     } else {
 861         mwmhints.input_mode = MWM_INPUT_MODELESS;
 862         mwmhints.flags &= ~MWM_HINTS_INPUT_MODE;
 863     }
 864
 865     if (window()->minimumSize() == window()->maximumSize()) {
 866         // fixed size, remove the resize handle (since mwm/dtwm
 867         // isn't smart enough to do it itself)
 868         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 869         if (mwmhints.functions == MWM_FUNC_ALL) {
 870             mwmhints.functions = MWM_FUNC_MOVE;
 871         } else {
 872             mwmhints.functions &= ~MWM_FUNC_RESIZE;
 873         }
 874
 875         if (mwmhints.decorations == MWM_DECOR_ALL) {
 876             mwmhints.flags |= MWM_HINTS_DECORATIONS;
 877             mwmhints.decorations = (MWM_DECOR_BORDER
 878                                     | MWM_DECOR_TITLE
 879                                     | MWM_DECOR_MENU);
 880         } else {
 881             mwmhints.decorations &= ~MWM_DECOR_RESIZEH;
 882         }
 883     }
 884
 885     if (window()->windowFlags() & Qt::WindowMinimizeButtonHint) {
 886         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 887         mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 888         mwmhints.functions |= MWM_FUNC_MINIMIZE;
 889     }
 890     if (window()->windowFlags() & Qt::WindowMaximizeButtonHint) {
 891         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 892         mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 893         mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 894     }
 895     if (window()->windowFlags() & Qt::WindowCloseButtonHint)
 896         mwmhints.functions |= MWM_FUNC_CLOSE;
 897
 898     setMotifWmHints(connection(), m_window, mwmhints);
 899 }
 900
 901 void QXcbWindow::updateNetWmStateBeforeMap()
 902 {
 903     QVector<xcb_atom_t> netWmState;
 904
 905     Qt::WindowFlags flags = window()->windowFlags();
 906     if (flags & Qt::WindowStaysOnTopHint) {
 907         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_ABOVE));
 908         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP));
 909     } else if (flags & Qt::WindowStaysOnBottomHint) {
 910         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_BELOW));
 911     }
 912
 913     if (window()->windowState() & Qt::WindowFullScreen) {
 914         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 915     }
 916
 917     if (window()->windowState() & Qt::WindowMaximized) {
 918         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ));
 919         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 920     }
 921
 922     if (window()->windowModality() != Qt::NonModal) {
 923         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_MODAL));
 924     }
 925
 926     setNetWmState(netWmState);
 927 }
 928
 929 void QXcbWindow::updateNetWmUserTime(xcb_timestamp_t timestamp)
 930 {
 931     xcb_window_t wid = m_window;
 932
 933     const bool isSupportedByWM = connection()->wmSupport()->isSupportedByWM(atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
 934     if (m_netWmUserTimeWindow || isSupportedByWM) {
 935         if (!m_netWmUserTimeWindow) {
 936             m_netWmUserTimeWindow = xcb_generate_id(xcb_connection());
 937             Q_XCB_CALL(xcb_create_window(xcb_connection(),
 938                                          XCB_COPY_FROM_PARENT,            // depth -- same as root
 939                                          m_netWmUserTimeWindow,                        // window id
 940                                          m_window,                   // parent window id
 941                                          -1, -1, 1, 1,
 942                                          0,                               // border width
 943                                          XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
 944                                          m_screen->screen()->root_visual, // visual
 945                                          0,                               // value mask
 946                                          0));                             // value list
 947             wid = m_netWmUserTimeWindow;
 948             xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW),
 949                                 XCB_ATOM_WINDOW, 32, 1, &m_netWmUserTimeWindow);
 950             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME));
 951         } else if (!isSupportedByWM) {
 952             // WM no longer supports it, then we should remove the
 953             // _NET_WM_USER_TIME_WINDOW atom.
 954             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
 955             xcb_destroy_window(xcb_connection(), m_netWmUserTimeWindow);
 956             m_netWmUserTimeWindow = XCB_NONE;
 957         } else {
 958             wid = m_netWmUserTimeWindow;
 959         }
 960     }
 961     xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, wid, atom(QXcbAtom::_NET_WM_USER_TIME),
 962                         XCB_ATOM_CARDINAL, 32, 1, &timestamp);
 963 }
 964
 965
 966 WId QXcbWindow::winId() const
 967 {
 968     return m_window;
 969 }
 970
 971 void QXcbWindow::setParent(const QPlatformWindow *parent)
 972 {
 973     // re-create for compatibility
 974     create();
 975
 976     QPoint topLeft = geometry().topLeft();
 977
 978     xcb_window_t xcb_parent_id = parent ? static_cast<const QXcbWindow *>(parent)->xcb_window() : m_screen->root();
 979     Q_XCB_CALL(xcb_reparent_window(xcb_connection(), xcb_window(), xcb_parent_id, topLeft.x(), topLeft.y()));
 980 }
 981
 982 void QXcbWindow::setWindowTitle(const QString &title)
 983 {
 984     QByteArray ba = title.toUtf8();
 985     Q_XCB_CALL(xcb_change_property(xcb_connection(),
 986                                    XCB_PROP_MODE_REPLACE,
 987                                    m_window,
 988                                    atom(QXcbAtom::_NET_WM_NAME),
 989                                    atom(QXcbAtom::UTF8_STRING),
 990                                    8,
 991                                    ba.length(),
 992                                    ba.constData()));
 993 }
 994
 995 void QXcbWindow::raise()
 996 {
 997     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
 998     const quint32 values[] = { XCB_STACK_MODE_ABOVE };
 999     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1000 }
1001
1002 void QXcbWindow::lower()
1003 {
1004     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1005     const quint32 values[] = { XCB_STACK_MODE_BELOW };
1006     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1007 }
1008
1009 void QXcbWindow::propagateSizeHints()
1010 {
1011     // update WM_NORMAL_HINTS
1012     xcb_size_hints_t hints;
1013     memset(&hints, 0, sizeof(hints));
1014
1015     QRect rect = geometry();
1016
1017     xcb_size_hints_set_position(&hints, true, rect.x(), rect.y());
1018     xcb_size_hints_set_size(&hints, true, rect.width(), rect.height());
1019     xcb_size_hints_set_win_gravity(&hints, XCB_GRAVITY_STATIC);
1020
1021     QWindow *win = window();
1022
1023     QSize minimumSize = win->minimumSize();
1024     QSize maximumSize = win->maximumSize();
1025     QSize baseSize = win->baseSize();
1026     QSize sizeIncrement = win->sizeIncrement();
1027
1028     if (minimumSize.width() > 0 || minimumSize.height() > 0)
1029         xcb_size_hints_set_min_size(&hints, minimumSize.width(), minimumSize.height());
1030
1031     if (maximumSize.width() < QWINDOWSIZE_MAX || maximumSize.height() < QWINDOWSIZE_MAX)
1032         xcb_size_hints_set_max_size(&hints,
1033                                     qMin(XCOORD_MAX, maximumSize.width()),
1034                                     qMin(XCOORD_MAX, maximumSize.height()));
1035
1036     if (sizeIncrement.width() > 0 || sizeIncrement.height() > 0) {
1037         xcb_size_hints_set_base_size(&hints, baseSize.width(), baseSize.height());
1038         xcb_size_hints_set_resize_inc(&hints, sizeIncrement.width(), sizeIncrement.height());
1039     }
1040
1041     xcb_set_wm_normal_hints(xcb_connection(), m_window, &hints);
1042 }
1043
1044 void QXcbWindow::requestActivateWindow()
1045 {
1046     if (m_mapped){
1047         updateNetWmUserTime(connection()->time());
1048         Q_XCB_CALL(xcb_set_input_focus(xcb_connection(), XCB_INPUT_FOCUS_PARENT, m_window, connection()->time()));
1049     }
1050     connection()->sync();
1051 }
1052
1053 QSurfaceFormat QXcbWindow::format() const
1054 {
1055     // ### return actual format
1056     return m_requestedFormat;
1057 }
1058
1059 #if defined(XCB_USE_EGL)
1060 QXcbEGLSurface *QXcbWindow::eglSurface() const
1061 {
1062     if (!m_eglSurface) {
1063         EGLDisplay display = connection()->egl_display();
1064         EGLConfig config = q_configFromGLFormat(display, window()->format(), true);
1065         EGLSurface surface = eglCreateWindowSurface(display, config, (EGLNativeWindowType)m_window, 0);
1066
1067         m_eglSurface = new QXcbEGLSurface(display, surface);
1068     }
1069
1070     return m_eglSurface;
1071 }
1072 #endif
1073
1074 void QXcbWindow::handleExposeEvent(const xcb_expose_event_t *event)
1075 {
1076     QRect rect(event->x, event->y, event->width, event->height);
1077     QWindowSystemInterface::handleExposeEvent(window(), rect);
1078 }
1079
1080 void QXcbWindow::handleClientMessageEvent(const xcb_client_message_event_t *event)
1081 {
1082     if (event->format != 32)
1083         return;
1084
1085     if (event->type == atom(QXcbAtom::WM_PROTOCOLS)) {
1086         if (event->data.data32[0] == atom(QXcbAtom::WM_DELETE_WINDOW)) {
1087             QWindowSystemInterface::handleCloseEvent(window());
1088         } else if (event->data.data32[0] == atom(QXcbAtom::WM_TAKE_FOCUS)) {
1089             connection()->setTime(event->data.data32[1]);
1090         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_PING)) {
1091             xcb_client_message_event_t reply = *event;
1092
1093             reply.response_type = XCB_CLIENT_MESSAGE;
1094             reply.window = m_screen->root();
1095
1096             xcb_send_event(xcb_connection(), 0, m_screen->root(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&reply);
1097             xcb_flush(xcb_connection());
1098         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_SYNC_REQUEST)) {
1099             connection()->setTime(event->data.data32[1]);
1100             m_syncValue.lo = event->data.data32[2];
1101             m_syncValue.hi = event->data.data32[3];
1102         } else {
1103             qWarning() << "unhandled WM_PROTOCOLS message:" << connection()->atomName(event->data.data32[0]);
1104         }
1105     } else if (event->type == atom(QXcbAtom::XdndEnter)) {
1106         connection()->drag()->handleEnter(window(), event);
1107     } else if (event->type == atom(QXcbAtom::XdndPosition)) {
1108         connection()->drag()->handlePosition(window(), event, false);
1109     } else if (event->type == atom(QXcbAtom::XdndLeave)) {
1110         connection()->drag()->handleLeave(window(), event, false);
1111     } else if (event->type == atom(QXcbAtom::XdndDrop)) {
1112         connection()->drag()->handleDrop(window(), event, false);
1113     } else {
1114         qWarning() << "unhandled client message:" << connection()->atomName(event->type);
1115     }
1116 }
1117
1118 void QXcbWindow::handleConfigureNotifyEvent(const xcb_configure_notify_event_t *event)
1119 {
1120     int xpos = geometry().x();
1121     int ypos = geometry().y();
1122
1123     if ((event->width == geometry().width() && event->height == geometry().height()) || event->x != 0 || event->y != 0) {
1124         xpos = event->x;
1125         ypos = event->y;
1126     }
1127
1128     QRect rect(xpos, ypos, event->width, event->height);
1129
1130     if (rect == geometry())
1131         return;
1132
1133     QPlatformWindow::setGeometry(rect);
1134     QWindowSystemInterface::handleGeometryChange(window(), rect);
1135
1136 #if XCB_USE_DRI2
1137     if (m_context)
1138         static_cast<QDri2Context *>(m_context)->resize(rect.size());
1139 #endif
1140 }
1141
1142 void QXcbWindow::handleMapNotifyEvent(const xcb_map_notify_event_t *event)
1143 {
1144     if (event->window == m_window) {
1145         m_mapped = true;
1146         QWindowSystemInterface::handleMapEvent(window());
1147     }
1148 }
1149
1150 void QXcbWindow::handleUnmapNotifyEvent(const xcb_unmap_notify_event_t *event)
1151 {
1152     if (event->window == m_window) {
1153         m_mapped = false;
1154         QWindowSystemInterface::handleUnmapEvent(window());
1155     }
1156 }
1157
1158 static Qt::MouseButtons translateMouseButtons(int s)
1159 {
1160     Qt::MouseButtons ret = 0;
1161     if (s & XCB_BUTTON_MASK_1)
1162         ret |= Qt::LeftButton;
1163     if (s & XCB_BUTTON_MASK_2)
1164         ret |= Qt::MidButton;
1165     if (s & XCB_BUTTON_MASK_3)
1166         ret |= Qt::RightButton;
1167     return ret;
1168 }
1169
1170 static Qt::MouseButton translateMouseButton(xcb_button_t s)
1171 {
1172     switch (s) {
1173     case 1:
1174         return Qt::LeftButton;
1175     case 2:
1176         return Qt::MidButton;
1177     case 3:
1178         return Qt::RightButton;
1179     default:
1180         return Qt::NoButton;
1181     }
1182 }
1183
1184 void QXcbWindow::handleButtonPressEvent(const xcb_button_press_event_t *event)
1185 {
1186     updateNetWmUserTime(event->time);
1187
1188     QPoint local(event->event_x, event->event_y);
1189     QPoint global(event->root_x, event->root_y);
1190
1191     Qt::KeyboardModifiers modifiers = Qt::NoModifier;
1192
1193     if (event->detail >= 4 && event->detail <= 7) {
1194         //logic borrowed from qapplication_x11.cpp
1195         int delta = 120 * ((event->detail == 4 || event->detail == 6) ? 1 : -1);
1196         bool hor = (((event->detail == 4 || event->detail == 5)
1197                      && (modifiers & Qt::AltModifier))
1198                     || (event->detail == 6 || event->detail == 7));
1199
1200         QWindowSystemInterface::handleWheelEvent(window(), event->time,
1201                                                  local, global, delta, hor ? Qt::Horizontal : Qt::Vertical);
1202         return;
1203     }
1204
1205     handleMouseEvent(event->detail, event->state, event->time, local, global);
1206 }
1207
1208 void QXcbWindow::handleButtonReleaseEvent(const xcb_button_release_event_t *event)
1209 {
1210     QPoint local(event->event_x, event->event_y);
1211     QPoint global(event->root_x, event->root_y);
1212
1213     handleMouseEvent(event->detail, event->state, event->time, local, global);
1214 }
1215
1216 void QXcbWindow::handleMotionNotifyEvent(const xcb_motion_notify_event_t *event)
1217 {
1218     QPoint local(event->event_x, event->event_y);
1219     QPoint global(event->root_x, event->root_y);
1220
1221     handleMouseEvent(event->detail, event->state, event->time, local, global);
1222 }
1223
1224 void QXcbWindow::handleMouseEvent(xcb_button_t detail, uint16_t state, xcb_timestamp_t time, const QPoint &local, const QPoint &global)
1225 {
1226     connection()->setTime(time);
1227
1228     Qt::MouseButtons buttons = translateMouseButtons(state);
1229     Qt::MouseButton button = translateMouseButton(detail);
1230
1231     buttons ^= button; // X event uses state *before*, Qt uses state *after*
1232
1233     QWindowSystemInterface::handleMouseEvent(window(), time, local, global, buttons);
1234 }
1235
1236 void QXcbWindow::handleEnterNotifyEvent(const xcb_enter_notify_event_t *event)
1237 {
1238     connection()->setTime(event->time);
1239
1240     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1241         || event->detail == XCB_NOTIFY_DETAIL_VIRTUAL
1242         || event->detail == XCB_NOTIFY_DETAIL_NONLINEAR_VIRTUAL)
1243     {
1244         return;
1245     }
1246
1247     QWindowSystemInterface::handleEnterEvent(window());
1248 }
1249
1250 void QXcbWindow::handleLeaveNotifyEvent(const xcb_leave_notify_event_t *event)
1251 {
1252     connection()->setTime(event->time);
1253
1254     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1255         || event->detail == XCB_NOTIFY_DETAIL_INFERIOR)
1256     {
1257         return;
1258     }
1259
1260     QWindowSystemInterface::handleLeaveEvent(window());
1261 }
1262
1263 void QXcbWindow::handleFocusInEvent(const xcb_focus_in_event_t *)
1264 {
1265     QWindowSystemInterface::handleWindowActivated(window());
1266 }
1267
1268 static bool focusInPeeker(xcb_generic_event_t *event)
1269 {
1270     if (!event) {
1271         // FocusIn event is not in the queue, proceed with FocusOut normally.
1272         QWindowSystemInterface::handleWindowActivated(0);
1273         return true;
1274     }
1275     uint response_type = event->response_type & ~0x80;
1276     return response_type == XCB_FOCUS_IN;
1277 }
1278
1279 void QXcbWindow::handleFocusOutEvent(const xcb_focus_out_event_t *)
1280 {
1281     // Do not set the active window to 0 if there is a FocusIn coming.
1282     // There is however no equivalent for XPutBackEvent so register a
1283     // callback for QXcbConnection instead.
1284     connection()->addPeekFunc(focusInPeeker);
1285 }
1286
1287 void QXcbWindow::updateSyncRequestCounter()
1288 {
1289     if (m_screen->syncRequestSupported() && (m_syncValue.lo != 0 || m_syncValue.hi != 0)) {
1290         Q_XCB_CALL(xcb_sync_set_counter(xcb_connection(), m_syncCounter, m_syncValue));
1291         xcb_flush(xcb_connection());
1292         connection()->sync();
1293
1294         m_syncValue.lo = 0;
1295         m_syncValue.hi = 0;
1296     }
1297 }
1298
1299 bool QXcbWindow::setKeyboardGrabEnabled(bool grab)
1300 {
1301     if (!grab) {
1302         xcb_ungrab_keyboard(xcb_connection(), XCB_TIME_CURRENT_TIME);
1303         return true;
1304     }
1305     xcb_grab_keyboard_cookie_t cookie = xcb_grab_keyboard(xcb_connection(), false,
1306                                                           m_window, XCB_TIME_CURRENT_TIME,
1307                                                           XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
1308     xcb_generic_error_t *err;
1309     xcb_grab_keyboard_reply_t *reply = xcb_grab_keyboard_reply(xcb_connection(), cookie, &err);
1310     bool result = !(err || !reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1311     free(reply);
1312     free(err);
1313     return result;
1314 }
1315
1316 bool QXcbWindow::setMouseGrabEnabled(bool grab)
1317 {
1318     if (!grab) {
1319         xcb_ungrab_pointer(xcb_connection(), XCB_TIME_CURRENT_TIME);
1320         return true;
1321     }
1322     xcb_grab_pointer_cookie_t cookie = xcb_grab_pointer(xcb_connection(), false, m_window,
1323                                                         (XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE
1324                                                          | XCB_EVENT_MASK_BUTTON_MOTION | XCB_EVENT_MASK_ENTER_WINDOW
1325                                                          | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_POINTER_MOTION),
1326                                                         XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC,
1327                                                         XCB_WINDOW_NONE, XCB_CURSOR_NONE,
1328                                                         XCB_TIME_CURRENT_TIME);
1329     xcb_generic_error_t *err;
1330     xcb_grab_pointer_reply_t *reply = xcb_grab_pointer_reply(xcb_connection(), cookie, &err);
1331     bool result = !(err || !reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1332     free(reply);
1333     free(err);
1334     return result;
1335 }
1336
1337 void QXcbWindow::setCursor(xcb_cursor_t cursor)
1338 {
1339     xcb_change_window_attributes(xcb_connection(), m_window, XCB_CW_CURSOR, &cursor);
1340     xcb_flush(xcb_connection());
1341 }