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 // FIXME This workaround can be removed for xcb-icccm > 3.8
  57 #define class class_name
  58 #include <xcb/xcb_icccm.h>
  59 #undef class
  60 #include <xcb/xfixes.h>
  61
  62 // xcb-icccm 3.8 support
  63 #ifdef XCB_ICCCM_NUM_WM_SIZE_HINTS_ELEMENTS
  64 #define xcb_get_wm_hints_reply xcb_icccm_get_wm_hints_reply
  65 #define xcb_get_wm_hints xcb_icccm_get_wm_hints
  66 #define xcb_set_wm_hints xcb_icccm_set_wm_hints
  67 #define xcb_set_wm_normal_hints xcb_icccm_set_wm_normal_hints
  68 #define xcb_size_hints_set_base_size xcb_icccm_size_hints_set_base_size
  69 #define xcb_size_hints_set_max_size xcb_icccm_size_hints_set_max_size
  70 #define xcb_size_hints_set_min_size xcb_icccm_size_hints_set_min_size
  71 #define xcb_size_hints_set_position xcb_icccm_size_hints_set_position
  72 #define xcb_size_hints_set_resize_inc xcb_icccm_size_hints_set_resize_inc
  73 #define xcb_size_hints_set_size xcb_icccm_size_hints_set_size
  74 #define xcb_size_hints_set_win_gravity xcb_icccm_size_hints_set_win_gravity
  75 #define xcb_wm_hints_set_iconic xcb_icccm_wm_hints_set_iconic
  76 #define xcb_wm_hints_set_normal xcb_icccm_wm_hints_set_normal
  77 #define xcb_wm_hints_t xcb_icccm_wm_hints_t
  78 #define XCB_WM_STATE_ICONIC XCB_ICCCM_WM_STATE_ICONIC
  79 #endif
  80
  81 #include <private/qguiapplication_p.h>
  82 #include <private/qwindow_p.h>
  83
  84 #include <QtGui/QPlatformBackingStore>
  85 #include <QtGui/QWindowSystemInterface>
  86
  87 #include <stdio.h>
  88
  89 #ifdef XCB_USE_XLIB
  90 #include <X11/Xlib.h>
  91 #include <X11/Xutil.h>
  92 #endif
  93
  94 #if defined(XCB_USE_GLX)
  95 #include "qglxintegration.h"
  96 #include <QtPlatformSupport/private/qglxconvenience_p.h>
  97 #elif defined(XCB_USE_EGL)
  98 #include "qxcbeglsurface.h"
  99 #include <QtPlatformSupport/private/qeglconvenience_p.h>
 100 #include <QtPlatformSupport/private/qxlibeglintegration_p.h>
 101 #endif
 102
 103 #define XCOORD_MAX 16383
 104
 105 //#ifdef NET_WM_STATE_DEBUG
 106
 107 // Returns true if we should set WM_TRANSIENT_FOR on \a w
 108 static inline bool isTransient(const QWindow *w)
 109 {
 110     return w->windowType() == Qt::Dialog
 111            || w->windowType() == Qt::Sheet
 112            || w->windowType() == Qt::Tool
 113            || w->windowType() == Qt::SplashScreen
 114            || w->windowType() == Qt::ToolTip
 115            || w->windowType() == Qt::Drawer
 116            || w->windowType() == Qt::Popup;
 117 }
 118
 119 QXcbWindow::QXcbWindow(QWindow *window)
 120     : QPlatformWindow(window)
 121     , m_window(0)
 122     , m_syncCounter(0)
 123     , m_mapped(false)
 124     , m_transparent(false)
 125     , m_netWmUserTimeWindow(XCB_NONE)
 126 #if defined(XCB_USE_EGL)
 127     , m_eglSurface(0)
 128 #endif
 129 {
 130     m_screen = static_cast<QXcbScreen *>(window->screen()->handle());
 131
 132     setConnection(m_screen->connection());
 133
 134     create();
 135 }
 136
 137 void QXcbWindow::create()
 138 {
 139     destroy();
 140
 141     m_windowState = Qt::WindowNoState;
 142
 143     Qt::WindowType type = window()->windowType();
 144
 145     if (type == Qt::Desktop) {
 146         m_window = m_screen->root();
 147         m_depth = m_screen->screen()->root_depth;
 148         m_imageFormat = (m_depth == 32) ? QImage::Format_ARGB32_Premultiplied : QImage::Format_RGB32;
 149         connection()->addWindow(m_window, this);
 150         return;
 151     }
 152
 153     const quint32 mask = XCB_CW_BACK_PIXMAP | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_SAVE_UNDER | XCB_CW_EVENT_MASK;
 154     const quint32 values[] = {
 155         // XCB_CW_BACK_PIXMAP
 156         XCB_NONE,
 157         // XCB_CW_OVERRIDE_REDIRECT
 158         type == Qt::Popup || type == Qt::ToolTip,
 159         // XCB_CW_SAVE_UNDER
 160         type == Qt::Popup || type == Qt::Tool || type == Qt::SplashScreen || type == Qt::ToolTip || type == Qt::Drawer,
 161         // XCB_CW_EVENT_MASK
 162         XCB_EVENT_MASK_EXPOSURE
 163         | XCB_EVENT_MASK_STRUCTURE_NOTIFY
 164         | XCB_EVENT_MASK_KEY_PRESS
 165         | XCB_EVENT_MASK_KEY_RELEASE
 166         | XCB_EVENT_MASK_BUTTON_PRESS
 167         | XCB_EVENT_MASK_BUTTON_RELEASE
 168         | XCB_EVENT_MASK_BUTTON_MOTION
 169         | XCB_EVENT_MASK_ENTER_WINDOW
 170         | XCB_EVENT_MASK_LEAVE_WINDOW
 171         | XCB_EVENT_MASK_POINTER_MOTION
 172         | XCB_EVENT_MASK_PROPERTY_CHANGE
 173         | XCB_EVENT_MASK_FOCUS_CHANGE
 174     };
 175
 176     QRect rect = window()->geometry();
 177     QPlatformWindow::setGeometry(rect);
 178
 179     rect.setWidth(qBound(1, rect.width(), XCOORD_MAX));
 180     rect.setHeight(qBound(1, rect.height(), XCOORD_MAX));
 181
 182     xcb_window_t xcb_parent_id = m_screen->root();
 183     if (parent())
 184         xcb_parent_id = static_cast<QXcbWindow *>(parent())->xcb_window();
 185
 186     m_requestedFormat = window()->format();
 187
 188 #if (defined(XCB_USE_GLX) || defined(XCB_USE_EGL)) && defined(XCB_USE_XLIB)
 189     if (QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::OpenGL)
 190         || window()->format().hasAlpha())
 191     {
 192 #if defined(XCB_USE_GLX)
 193         XVisualInfo *visualInfo = qglx_findVisualInfo(DISPLAY_FROM_XCB(m_screen),m_screen->screenNumber(), window()->format());
 194
 195 #elif defined(XCB_USE_EGL)
 196         EGLDisplay eglDisplay = connection()->egl_display();
 197         EGLConfig eglConfig = q_configFromGLFormat(eglDisplay, window()->format(), true);
 198         VisualID id = QXlibEglIntegration::getCompatibleVisualId(DISPLAY_FROM_XCB(this), eglDisplay, eglConfig);
 199
 200         XVisualInfo visualInfoTemplate;
 201         memset(&visualInfoTemplate, 0, sizeof(XVisualInfo));
 202         visualInfoTemplate.visualid = id;
 203
 204         XVisualInfo *visualInfo;
 205         int matchingCount = 0;
 206         visualInfo = XGetVisualInfo(DISPLAY_FROM_XCB(this), VisualIDMask, &visualInfoTemplate, &matchingCount);
 207 #endif //XCB_USE_GLX
 208         if (visualInfo) {
 209             m_depth = visualInfo->depth;
 210             m_imageFormat = (m_depth == 32) ? QImage::Format_ARGB32_Premultiplied : QImage::Format_RGB32;
 211             Colormap cmap = XCreateColormap(DISPLAY_FROM_XCB(this), xcb_parent_id, visualInfo->visual, AllocNone);
 212
 213             XSetWindowAttributes a;
 214             a.background_pixel = WhitePixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 215             a.border_pixel = BlackPixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 216             a.colormap = cmap;
 217             m_window = XCreateWindow(DISPLAY_FROM_XCB(this), xcb_parent_id, rect.x(), rect.y(), rect.width(), rect.height(),
 218                                       0, visualInfo->depth, InputOutput, visualInfo->visual,
 219                                       CWBackPixel|CWBorderPixel|CWColormap, &a);
 220         } else {
 221             qFatal("no window!");
 222         }
 223     } else
 224 #endif //defined(XCB_USE_GLX) || defined(XCB_USE_EGL)
 225     {
 226         m_window = xcb_generate_id(xcb_connection());
 227         m_depth = m_screen->screen()->root_depth;
 228         m_imageFormat = (m_depth == 32) ? QImage::Format_ARGB32_Premultiplied : QImage::Format_RGB32;
 229
 230         Q_XCB_CALL(xcb_create_window(xcb_connection(),
 231                                      XCB_COPY_FROM_PARENT,            // depth -- same as root
 232                                      m_window,                        // window id
 233                                      xcb_parent_id,                   // parent window id
 234                                      rect.x(),
 235                                      rect.y(),
 236                                      rect.width(),
 237                                      rect.height(),
 238                                      0,                               // border width
 239                                      XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
 240                                      m_screen->screen()->root_visual, // visual
 241                                      0,                               // value mask
 242                                      0));                             // value list
 243     }
 244
 245     connection()->addWindow(m_window, this);
 246
 247     Q_XCB_CALL(xcb_change_window_attributes(xcb_connection(), m_window, mask, values));
 248
 249     xcb_atom_t properties[4];
 250     int propertyCount = 0;
 251     properties[propertyCount++] = atom(QXcbAtom::WM_DELETE_WINDOW);
 252     properties[propertyCount++] = atom(QXcbAtom::WM_TAKE_FOCUS);
 253     properties[propertyCount++] = atom(QXcbAtom::_NET_WM_PING);
 254
 255     if (m_screen->syncRequestSupported())
 256         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_SYNC_REQUEST);
 257
 258     if (window()->windowFlags() & Qt::WindowContextHelpButtonHint)
 259         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_CONTEXT_HELP);
 260
 261     Q_XCB_CALL(xcb_change_property(xcb_connection(),
 262                                    XCB_PROP_MODE_REPLACE,
 263                                    m_window,
 264                                    atom(QXcbAtom::WM_PROTOCOLS),
 265                                    XCB_ATOM_ATOM,
 266                                    32,
 267                                    propertyCount,
 268                                    properties));
 269     m_syncValue.hi = 0;
 270     m_syncValue.lo = 0;
 271
 272     if (m_screen->syncRequestSupported()) {
 273         m_syncCounter = xcb_generate_id(xcb_connection());
 274         Q_XCB_CALL(xcb_sync_create_counter(xcb_connection(), m_syncCounter, m_syncValue));
 275
 276         Q_XCB_CALL(xcb_change_property(xcb_connection(),
 277                                        XCB_PROP_MODE_REPLACE,
 278                                        m_window,
 279                                        atom(QXcbAtom::_NET_WM_SYNC_REQUEST_COUNTER),
 280                                        XCB_ATOM_CARDINAL,
 281                                        32,
 282                                        1,
 283                                        &m_syncCounter));
 284     }
 285
 286     // set the PID to let the WM kill the application if unresponsive
 287     long pid = getpid();
 288     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 289                                    atom(QXcbAtom::_NET_WM_PID), XCB_ATOM_CARDINAL, 32,
 290                                    1, &pid));
 291
 292     xcb_wm_hints_t hints;
 293     memset(&hints, 0, sizeof(hints));
 294     xcb_wm_hints_set_normal(&hints);
 295
 296     xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 297
 298     xcb_window_t leader = m_screen->clientLeader();
 299     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 300                                    atom(QXcbAtom::WM_CLIENT_LEADER), XCB_ATOM_WINDOW, 32,
 301                                    1, &leader));
 302
 303     setWindowFlags(window()->windowFlags());
 304     setWindowTitle(window()->windowTitle());
 305     setWindowState(window()->windowState());
 306
 307     if (window()->windowFlags() & Qt::WindowTransparentForInput)
 308         setTransparentForMouseEvents(true);
 309
 310     connection()->drag()->dndEnable(this, true);
 311 }
 312
 313 QXcbWindow::~QXcbWindow()
 314 {
 315     destroy();
 316 }
 317
 318 void QXcbWindow::destroy()
 319 {
 320     if (m_syncCounter && m_screen->syncRequestSupported())
 321         Q_XCB_CALL(xcb_sync_destroy_counter(xcb_connection(), m_syncCounter));
 322     if (m_window) {
 323         connection()->removeWindow(m_window);
 324         Q_XCB_CALL(xcb_destroy_window(xcb_connection(), m_window));
 325     }
 326     m_mapped = false;
 327
 328 #if defined(XCB_USE_EGL)
 329     delete m_eglSurface;
 330     m_eglSurface = 0;
 331 #endif
 332 }
 333
 334 void QXcbWindow::setGeometry(const QRect &rect)
 335 {
 336     QPlatformWindow::setGeometry(rect);
 337
 338     const quint32 mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
 339     const quint32 values[] = { rect.x(),
 340                                rect.y(),
 341                                qBound(1, rect.width(), XCOORD_MAX),
 342                                qBound(1, rect.height(), XCOORD_MAX) };
 343
 344     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
 345
 346     xcb_flush(xcb_connection());
 347 }
 348
 349 QMargins QXcbWindow::frameMargins() const
 350 {
 351     if (m_dirtyFrameMargins) {
 352         xcb_window_t window = m_window;
 353         xcb_window_t parent = m_window;
 354
 355         bool foundRoot = false;
 356
 357         const QVector<xcb_window_t> &virtualRoots =
 358             connection()->wmSupport()->virtualRoots();
 359
 360         while (!foundRoot) {
 361             xcb_query_tree_cookie_t cookie = xcb_query_tree(xcb_connection(), parent);
 362
 363             xcb_generic_error_t *error;
 364             xcb_query_tree_reply_t *reply = xcb_query_tree_reply(xcb_connection(), cookie, &error);
 365             if (reply) {
 366                 if (reply->root == reply->parent || virtualRoots.indexOf(reply->parent) != -1) {
 367                     foundRoot = true;
 368                 } else {
 369                     window = parent;
 370                     parent = reply->parent;
 371                 }
 372
 373                 free(reply);
 374             } else {
 375                 if (error) {
 376                     connection()->handleXcbError(error);
 377                     free(error);
 378                 }
 379
 380                 m_dirtyFrameMargins = false;
 381                 m_frameMargins = QMargins();
 382                 return m_frameMargins;
 383             }
 384         }
 385
 386         QPoint offset;
 387
 388         xcb_generic_error_t *error;
 389         xcb_translate_coordinates_reply_t *reply =
 390             xcb_translate_coordinates_reply(
 391                 xcb_connection(),
 392                 xcb_translate_coordinates(xcb_connection(), window, parent, 0, 0),
 393                 &error);
 394
 395         if (reply) {
 396             offset = QPoint(reply->dst_x, reply->dst_y);
 397             free(reply);
 398         } else if (error) {
 399             free(error);
 400         }
 401
 402         xcb_get_geometry_reply_t *geom =
 403             xcb_get_geometry_reply(
 404                 xcb_connection(),
 405                 xcb_get_geometry(xcb_connection(), parent),
 406                 &error);
 407
 408         if (geom) {
 409             // --
 410             // add the border_width for the window managers frame... some window managers
 411             // do not use a border_width of zero for their frames, and if we the left and
 412             // top strut, we ensure that pos() is absolutely correct.  frameGeometry()
 413             // will still be incorrect though... perhaps i should have foffset as well, to
 414             // indicate the frame offset (equal to the border_width on X).
 415             // - Brad
 416             // -- copied from qwidget_x11.cpp
 417
 418             int left = offset.x() + geom->border_width;
 419             int top = offset.y() + geom->border_width;
 420             int right = geom->width + geom->border_width - geometry().width() - offset.x();
 421             int bottom = geom->height + geom->border_width - geometry().height() - offset.y();
 422
 423             m_frameMargins = QMargins(left, top, right, bottom);
 424
 425             free(geom);
 426         } else if (error) {
 427             free(error);
 428         }
 429
 430         m_dirtyFrameMargins = false;
 431     }
 432
 433     return m_frameMargins;
 434 }
 435
 436 void QXcbWindow::setVisible(bool visible)
 437 {
 438     if (visible)
 439         show();
 440     else
 441         hide();
 442 }
 443
 444 void QXcbWindow::show()
 445 {
 446     if (window()->isTopLevel()) {
 447         xcb_get_property_cookie_t cookie = xcb_get_wm_hints(xcb_connection(), m_window);
 448
 449         xcb_generic_error_t *error;
 450
 451         xcb_wm_hints_t hints;
 452         xcb_get_wm_hints_reply(xcb_connection(), cookie, &hints, &error);
 453
 454         if (error) {
 455             connection()->handleXcbError(error);
 456             free(error);
 457         }
 458
 459         if (window()->windowState() & Qt::WindowMinimized)
 460             xcb_wm_hints_set_iconic(&hints);
 461         else
 462             xcb_wm_hints_set_normal(&hints);
 463
 464         xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 465
 466         // update WM_NORMAL_HINTS
 467         propagateSizeHints();
 468
 469         // update WM_TRANSIENT_FOR
 470         if (window()->transientParent() && isTransient(window())) {
 471             QXcbWindow *transientXcbParent = static_cast<QXcbWindow *>(window()->transientParent()->handle());
 472             if (transientXcbParent) {
 473                 // ICCCM 4.1.2.6
 474                 xcb_window_t parentWindow = transientXcbParent->xcb_window();
 475
 476                 // todo: set transient for group (wm_client_leader) if no parent, a la qwidget_x11.cpp
 477                 Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 478                                                XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, 32,
 479                                                1, &parentWindow));
 480             }
 481         }
 482
 483         // update _MOTIF_WM_HINTS
 484         updateMotifWmHintsBeforeMap();
 485
 486         // update _NET_WM_STATE
 487         updateNetWmStateBeforeMap();
 488     }
 489
 490     Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 491     xcb_flush(xcb_connection());
 492
 493     connection()->sync();
 494 }
 495
 496 void QXcbWindow::hide()
 497 {
 498     Q_XCB_CALL(xcb_unmap_window(xcb_connection(), m_window));
 499
 500     // send synthetic UnmapNotify event according to icccm 4.1.4
 501     xcb_unmap_notify_event_t event;
 502     event.response_type = XCB_UNMAP_NOTIFY;
 503     event.event = m_screen->root();
 504     event.window = m_window;
 505     event.from_configure = false;
 506     Q_XCB_CALL(xcb_send_event(xcb_connection(), false, m_screen->root(),
 507                               XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&event));
 508
 509     xcb_flush(xcb_connection());
 510
 511     m_mapped = false;
 512 }
 513
 514 struct QtMotifWmHints {
 515     quint32 flags, functions, decorations;
 516     qint32 input_mode;
 517     quint32 status;
 518 };
 519
 520 enum {
 521     MWM_HINTS_FUNCTIONS   = (1L << 0),
 522
 523     MWM_FUNC_ALL      = (1L << 0),
 524     MWM_FUNC_RESIZE   = (1L << 1),
 525     MWM_FUNC_MOVE     = (1L << 2),
 526     MWM_FUNC_MINIMIZE = (1L << 3),
 527     MWM_FUNC_MAXIMIZE = (1L << 4),
 528     MWM_FUNC_CLOSE    = (1L << 5),
 529
 530     MWM_HINTS_DECORATIONS = (1L << 1),
 531
 532     MWM_DECOR_ALL      = (1L << 0),
 533     MWM_DECOR_BORDER   = (1L << 1),
 534     MWM_DECOR_RESIZEH  = (1L << 2),
 535     MWM_DECOR_TITLE    = (1L << 3),
 536     MWM_DECOR_MENU     = (1L << 4),
 537     MWM_DECOR_MINIMIZE = (1L << 5),
 538     MWM_DECOR_MAXIMIZE = (1L << 6),
 539
 540     MWM_HINTS_INPUT_MODE = (1L << 2),
 541
 542     MWM_INPUT_MODELESS                  = 0L,
 543     MWM_INPUT_PRIMARY_APPLICATION_MODAL = 1L,
 544     MWM_INPUT_FULL_APPLICATION_MODAL    = 3L
 545 };
 546
 547 static QtMotifWmHints getMotifWmHints(QXcbConnection *c, xcb_window_t window)
 548 {
 549     QtMotifWmHints hints;
 550
 551     xcb_get_property_cookie_t get_cookie =
 552         xcb_get_property(c->xcb_connection(), 0, window, c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 553                          c->atom(QXcbAtom::_MOTIF_WM_HINTS), 0, 20);
 554
 555     xcb_generic_error_t *error;
 556
 557     xcb_get_property_reply_t *reply =
 558         xcb_get_property_reply(c->xcb_connection(), get_cookie, &error);
 559
 560     if (reply && reply->format == 32 && reply->type == c->atom(QXcbAtom::_MOTIF_WM_HINTS)) {
 561         hints = *((QtMotifWmHints *)xcb_get_property_value(reply));
 562     } else if (error) {
 563         c->handleXcbError(error);
 564         free(error);
 565
 566         hints.flags = 0L;
 567         hints.functions = MWM_FUNC_ALL;
 568         hints.decorations = MWM_DECOR_ALL;
 569         hints.input_mode = 0L;
 570         hints.status = 0L;
 571     }
 572
 573     free(reply);
 574
 575     return hints;
 576 }
 577
 578 static void setMotifWmHints(QXcbConnection *c, xcb_window_t window, const QtMotifWmHints &hints)
 579 {
 580     if (hints.flags != 0l) {
 581         Q_XCB_CALL2(xcb_change_property(c->xcb_connection(),
 582                                        XCB_PROP_MODE_REPLACE,
 583                                        window,
 584                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 585                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 586                                        32,
 587                                        5,
 588                                        &hints), c);
 589     } else {
 590         Q_XCB_CALL2(xcb_delete_property(c->xcb_connection(), window, c->atom(QXcbAtom::_MOTIF_WM_HINTS)), c);
 591     }
 592 }
 593
 594 void QXcbWindow::printNetWmState(const QVector<xcb_atom_t> &state)
 595 {
 596     printf("_NET_WM_STATE (%d): ", state.size());
 597     for (int i = 0; i < state.size(); ++i) {
 598 #define CHECK_WM_STATE(state_atom) \
 599         if (state.at(i) == atom(QXcbAtom::state_atom))\
 600             printf(#state_atom " ");
 601         CHECK_WM_STATE(_NET_WM_STATE_ABOVE)
 602         CHECK_WM_STATE(_NET_WM_STATE_BELOW)
 603         CHECK_WM_STATE(_NET_WM_STATE_FULLSCREEN)
 604         CHECK_WM_STATE(_NET_WM_STATE_MAXIMIZED_HORZ)
 605         CHECK_WM_STATE(_NET_WM_STATE_MAXIMIZED_VERT)
 606         CHECK_WM_STATE(_NET_WM_STATE_MODAL)
 607         CHECK_WM_STATE(_NET_WM_STATE_STAYS_ON_TOP)
 608         CHECK_WM_STATE(_NET_WM_STATE_DEMANDS_ATTENTION)
 609 #undef CHECK_WM_STATE
 610     }
 611     printf("\n");
 612 }
 613
 614 QVector<xcb_atom_t> QXcbWindow::getNetWmState()
 615 {
 616     QVector<xcb_atom_t> result;
 617
 618     xcb_get_property_cookie_t get_cookie =
 619         xcb_get_property(xcb_connection(), 0, m_window, atom(QXcbAtom::_NET_WM_STATE),
 620                          XCB_ATOM_ATOM, 0, 1024);
 621
 622     xcb_generic_error_t *error;
 623
 624     xcb_get_property_reply_t *reply =
 625         xcb_get_property_reply(xcb_connection(), get_cookie, &error);
 626
 627     if (reply && reply->format == 32 && reply->type == XCB_ATOM_ATOM) {
 628         result.resize(reply->length);
 629
 630         memcpy(result.data(), xcb_get_property_value(reply), reply->length * sizeof(xcb_atom_t));
 631
 632 #ifdef NET_WM_STATE_DEBUG
 633         printf("getting net wm state (%x)\n", m_window);
 634         printNetWmState(result);
 635 #endif
 636
 637         free(reply);
 638     } else if (error) {
 639         connection()->handleXcbError(error);
 640         free(error);
 641     } else {
 642 #ifdef NET_WM_STATE_DEBUG
 643         printf("getting net wm state (%x), empty\n", m_window);
 644 #endif
 645     }
 646
 647     return result;
 648 }
 649
 650 void QXcbWindow::setNetWmState(const QVector<xcb_atom_t> &atoms)
 651 {
 652     if (atoms.isEmpty()) {
 653         Q_XCB_CALL(xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_STATE)));
 654     } else {
 655         Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 656                                        atom(QXcbAtom::_NET_WM_STATE), XCB_ATOM_ATOM, 32,
 657                                        atoms.count(), atoms.constData()));
 658     }
 659     xcb_flush(xcb_connection());
 660 }
 661
 662
 663 Qt::WindowFlags QXcbWindow::setWindowFlags(Qt::WindowFlags flags)
 664 {
 665     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 666
 667     if (type == Qt::ToolTip)
 668         flags |= Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint;
 669     if (type == Qt::Popup)
 670         flags |= Qt::X11BypassWindowManagerHint;
 671
 672     if (flags & Qt::WindowTransparentForInput) {
 673         uint32_t mask = XCB_EVENT_MASK_NO_EVENT;
 674         xcb_change_window_attributes(xcb_connection(), xcb_window(), XCB_CW_EVENT_MASK, &mask);
 675     }
 676
 677     setNetWmWindowFlags(flags);
 678     setMotifWindowFlags(flags);
 679
 680     setTransparentForMouseEvents(flags & Qt::WindowTransparentForInput);
 681
 682     return flags;
 683 }
 684
 685 void QXcbWindow::setMotifWindowFlags(Qt::WindowFlags flags)
 686 {
 687     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 688
 689     QtMotifWmHints mwmhints;
 690     mwmhints.flags = 0L;
 691     mwmhints.functions = 0L;
 692     mwmhints.decorations = 0;
 693     mwmhints.input_mode = 0L;
 694     mwmhints.status = 0L;
 695
 696     if (type != Qt::SplashScreen) {
 697         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 698
 699         bool customize = flags & Qt::CustomizeWindowHint;
 700         if (!(flags & Qt::FramelessWindowHint) && !(customize && !(flags & Qt::WindowTitleHint))) {
 701             mwmhints.decorations |= MWM_DECOR_BORDER;
 702             mwmhints.decorations |= MWM_DECOR_RESIZEH;
 703
 704             if (flags & Qt::WindowTitleHint)
 705                 mwmhints.decorations |= MWM_DECOR_TITLE;
 706
 707             if (flags & Qt::WindowSystemMenuHint)
 708                 mwmhints.decorations |= MWM_DECOR_MENU;
 709
 710             if (flags & Qt::WindowMinimizeButtonHint) {
 711                 mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 712                 mwmhints.functions |= MWM_FUNC_MINIMIZE;
 713             }
 714
 715             if (flags & Qt::WindowMaximizeButtonHint) {
 716                 mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 717                 mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 718             }
 719
 720             if (flags & Qt::WindowCloseButtonHint)
 721                 mwmhints.functions |= MWM_FUNC_CLOSE;
 722         }
 723     } else {
 724         // if type == Qt::SplashScreen
 725         mwmhints.decorations = MWM_DECOR_ALL;
 726     }
 727
 728     if (mwmhints.functions != 0) {
 729         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 730         mwmhints.functions |= MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 731     } else {
 732         mwmhints.functions = MWM_FUNC_ALL;
 733     }
 734
 735     if (!(flags & Qt::FramelessWindowHint)
 736         && flags & Qt::CustomizeWindowHint
 737         && flags & Qt::WindowTitleHint
 738         && !(flags &
 739              (Qt::WindowMinimizeButtonHint
 740               | Qt::WindowMaximizeButtonHint
 741               | Qt::WindowCloseButtonHint)))
 742     {
 743         // a special case - only the titlebar without any button
 744         mwmhints.flags = MWM_HINTS_FUNCTIONS;
 745         mwmhints.functions = MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 746         mwmhints.decorations = 0;
 747     }
 748
 749     setMotifWmHints(connection(), m_window, mwmhints);
 750 }
 751
 752 void QXcbWindow::changeNetWmState(bool set, xcb_atom_t one, xcb_atom_t two)
 753 {
 754     xcb_client_message_event_t event;
 755
 756     event.response_type = XCB_CLIENT_MESSAGE;
 757     event.format = 32;
 758     event.window = m_window;
 759     event.type = atom(QXcbAtom::_NET_WM_STATE);
 760     event.data.data32[0] = set ? 1 : 0;
 761     event.data.data32[1] = one;
 762     event.data.data32[2] = two;
 763     event.data.data32[3] = 0;
 764     event.data.data32[4] = 0;
 765
 766     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));
 767 }
 768
 769 Qt::WindowState QXcbWindow::setWindowState(Qt::WindowState state)
 770 {
 771     if (state == m_windowState)
 772         return state;
 773
 774     // unset old state
 775     switch (m_windowState) {
 776     case Qt::WindowMinimized:
 777         Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 778         break;
 779     case Qt::WindowMaximized:
 780         changeNetWmState(false,
 781                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 782                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 783         break;
 784     case Qt::WindowFullScreen:
 785         changeNetWmState(false, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 786         break;
 787     default:
 788         break;
 789     }
 790
 791     // set new state
 792     switch (state) {
 793     case Qt::WindowMinimized:
 794         {
 795             xcb_client_message_event_t event;
 796
 797             event.response_type = XCB_CLIENT_MESSAGE;
 798             event.format = 32;
 799             event.window = m_window;
 800             event.type = atom(QXcbAtom::WM_CHANGE_STATE);
 801             event.data.data32[0] = XCB_WM_STATE_ICONIC;
 802             event.data.data32[1] = 0;
 803             event.data.data32[2] = 0;
 804             event.data.data32[3] = 0;
 805             event.data.data32[4] = 0;
 806
 807             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));
 808         }
 809         break;
 810     case Qt::WindowMaximized:
 811         changeNetWmState(true,
 812                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 813                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 814         break;
 815     case Qt::WindowFullScreen:
 816         changeNetWmState(true, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 817         break;
 818     case Qt::WindowNoState:
 819         break;
 820     default:
 821         break;
 822     }
 823
 824     connection()->sync();
 825
 826     m_windowState = state;
 827     return m_windowState;
 828 }
 829
 830 void QXcbWindow::setNetWmWindowFlags(Qt::WindowFlags flags)
 831 {
 832     // in order of decreasing priority
 833     QVector<uint> windowTypes;
 834
 835     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 836
 837     switch (type) {
 838     case Qt::Dialog:
 839     case Qt::Sheet:
 840         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_DIALOG));
 841         break;
 842     case Qt::Tool:
 843     case Qt::Drawer:
 844         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_UTILITY));
 845         break;
 846     case Qt::ToolTip:
 847         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_TOOLTIP));
 848         break;
 849     case Qt::SplashScreen:
 850         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_SPLASH));
 851         break;
 852     default:
 853         break;
 854     }
 855
 856     if (flags & Qt::FramelessWindowHint)
 857         windowTypes.append(atom(QXcbAtom::_KDE_NET_WM_WINDOW_TYPE_OVERRIDE));
 858
 859     windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_NORMAL));
 860
 861     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 862                                    atom(QXcbAtom::_NET_WM_WINDOW_TYPE), XCB_ATOM_ATOM, 32,
 863                                    windowTypes.count(), windowTypes.constData()));
 864 }
 865
 866 void QXcbWindow::updateMotifWmHintsBeforeMap()
 867 {
 868     QtMotifWmHints mwmhints = getMotifWmHints(connection(), m_window);
 869
 870     if (window()->windowModality() != Qt::NonModal) {
 871         switch (window()->windowModality()) {
 872         case Qt::WindowModal:
 873             mwmhints.input_mode = MWM_INPUT_PRIMARY_APPLICATION_MODAL;
 874             break;
 875         case Qt::ApplicationModal:
 876         default:
 877             mwmhints.input_mode = MWM_INPUT_FULL_APPLICATION_MODAL;
 878             break;
 879         }
 880         mwmhints.flags |= MWM_HINTS_INPUT_MODE;
 881     } else {
 882         mwmhints.input_mode = MWM_INPUT_MODELESS;
 883         mwmhints.flags &= ~MWM_HINTS_INPUT_MODE;
 884     }
 885
 886     if (window()->minimumSize() == window()->maximumSize()) {
 887         // fixed size, remove the resize handle (since mwm/dtwm
 888         // isn't smart enough to do it itself)
 889         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 890         if (mwmhints.functions == MWM_FUNC_ALL) {
 891             mwmhints.functions = MWM_FUNC_MOVE;
 892         } else {
 893             mwmhints.functions &= ~MWM_FUNC_RESIZE;
 894         }
 895
 896         if (mwmhints.decorations == MWM_DECOR_ALL) {
 897             mwmhints.flags |= MWM_HINTS_DECORATIONS;
 898             mwmhints.decorations = (MWM_DECOR_BORDER
 899                                     | MWM_DECOR_TITLE
 900                                     | MWM_DECOR_MENU);
 901         } else {
 902             mwmhints.decorations &= ~MWM_DECOR_RESIZEH;
 903         }
 904     }
 905
 906     if (window()->windowFlags() & Qt::WindowMinimizeButtonHint) {
 907         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 908         mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 909         mwmhints.functions |= MWM_FUNC_MINIMIZE;
 910     }
 911     if (window()->windowFlags() & Qt::WindowMaximizeButtonHint) {
 912         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 913         mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 914         mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 915     }
 916     if (window()->windowFlags() & Qt::WindowCloseButtonHint)
 917         mwmhints.functions |= MWM_FUNC_CLOSE;
 918
 919     setMotifWmHints(connection(), m_window, mwmhints);
 920 }
 921
 922 void QXcbWindow::updateNetWmStateBeforeMap()
 923 {
 924     QVector<xcb_atom_t> netWmState;
 925
 926     Qt::WindowFlags flags = window()->windowFlags();
 927     if (flags & Qt::WindowStaysOnTopHint) {
 928         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_ABOVE));
 929         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP));
 930     } else if (flags & Qt::WindowStaysOnBottomHint) {
 931         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_BELOW));
 932     }
 933
 934     if (window()->windowState() & Qt::WindowFullScreen) {
 935         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 936     }
 937
 938     if (window()->windowState() & Qt::WindowMaximized) {
 939         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ));
 940         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 941     }
 942
 943     if (window()->windowModality() != Qt::NonModal) {
 944         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_MODAL));
 945     }
 946
 947     setNetWmState(netWmState);
 948 }
 949
 950 void QXcbWindow::updateNetWmUserTime(xcb_timestamp_t timestamp)
 951 {
 952     xcb_window_t wid = m_window;
 953
 954     const bool isSupportedByWM = connection()->wmSupport()->isSupportedByWM(atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
 955     if (m_netWmUserTimeWindow || isSupportedByWM) {
 956         if (!m_netWmUserTimeWindow) {
 957             m_netWmUserTimeWindow = xcb_generate_id(xcb_connection());
 958             Q_XCB_CALL(xcb_create_window(xcb_connection(),
 959                                          XCB_COPY_FROM_PARENT,            // depth -- same as root
 960                                          m_netWmUserTimeWindow,                        // window id
 961                                          m_window,                   // parent window id
 962                                          -1, -1, 1, 1,
 963                                          0,                               // border width
 964                                          XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
 965                                          m_screen->screen()->root_visual, // visual
 966                                          0,                               // value mask
 967                                          0));                             // value list
 968             wid = m_netWmUserTimeWindow;
 969             xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW),
 970                                 XCB_ATOM_WINDOW, 32, 1, &m_netWmUserTimeWindow);
 971             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME));
 972         } else if (!isSupportedByWM) {
 973             // WM no longer supports it, then we should remove the
 974             // _NET_WM_USER_TIME_WINDOW atom.
 975             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
 976             xcb_destroy_window(xcb_connection(), m_netWmUserTimeWindow);
 977             m_netWmUserTimeWindow = XCB_NONE;
 978         } else {
 979             wid = m_netWmUserTimeWindow;
 980         }
 981     }
 982     xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, wid, atom(QXcbAtom::_NET_WM_USER_TIME),
 983                         XCB_ATOM_CARDINAL, 32, 1, &timestamp);
 984 }
 985
 986 void QXcbWindow::setTransparentForMouseEvents(bool transparent)
 987 {
 988     if (transparent == m_transparent)
 989         return;
 990
 991     xcb_rectangle_t rectangle;
 992
 993     xcb_rectangle_t *rect = 0;
 994     int nrect = 0;
 995
 996     if (!transparent) {
 997         rectangle.x = 0;
 998         rectangle.y = 0;
 999         rectangle.width = geometry().width();
1000         rectangle.height = geometry().height();
1001         rect = &rectangle;
1002         nrect = 1;
1003     }
1004
1005     xcb_xfixes_region_t region = xcb_generate_id(xcb_connection());
1006     xcb_xfixes_create_region(xcb_connection(), region, nrect, rect);
1007     xcb_xfixes_set_window_shape_region_checked(xcb_connection(), m_window, XCB_SHAPE_SK_INPUT, 0, 0, region);
1008     xcb_xfixes_destroy_region(xcb_connection(), region);
1009
1010     m_transparent = transparent;
1011 }
1012
1013
1014 WId QXcbWindow::winId() const
1015 {
1016     return m_window;
1017 }
1018
1019 void QXcbWindow::setParent(const QPlatformWindow *parent)
1020 {
1021     // re-create for compatibility
1022     create();
1023
1024     QPoint topLeft = geometry().topLeft();
1025
1026     xcb_window_t xcb_parent_id = parent ? static_cast<const QXcbWindow *>(parent)->xcb_window() : m_screen->root();
1027     Q_XCB_CALL(xcb_reparent_window(xcb_connection(), xcb_window(), xcb_parent_id, topLeft.x(), topLeft.y()));
1028 }
1029
1030 void QXcbWindow::setWindowTitle(const QString &title)
1031 {
1032     QByteArray ba = title.toUtf8();
1033     Q_XCB_CALL(xcb_change_property(xcb_connection(),
1034                                    XCB_PROP_MODE_REPLACE,
1035                                    m_window,
1036                                    atom(QXcbAtom::_NET_WM_NAME),
1037                                    atom(QXcbAtom::UTF8_STRING),
1038                                    8,
1039                                    ba.length(),
1040                                    ba.constData()));
1041 }
1042
1043 void QXcbWindow::raise()
1044 {
1045     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1046     const quint32 values[] = { XCB_STACK_MODE_ABOVE };
1047     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1048 }
1049
1050 void QXcbWindow::lower()
1051 {
1052     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1053     const quint32 values[] = { XCB_STACK_MODE_BELOW };
1054     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1055 }
1056
1057 void QXcbWindow::propagateSizeHints()
1058 {
1059     // update WM_NORMAL_HINTS
1060     xcb_size_hints_t hints;
1061     memset(&hints, 0, sizeof(hints));
1062
1063     QRect rect = geometry();
1064
1065     xcb_size_hints_set_position(&hints, true, rect.x(), rect.y());
1066     xcb_size_hints_set_size(&hints, true, rect.width(), rect.height());
1067     xcb_size_hints_set_win_gravity(&hints, XCB_GRAVITY_STATIC);
1068
1069     QWindow *win = window();
1070
1071     QSize minimumSize = win->minimumSize();
1072     QSize maximumSize = win->maximumSize();
1073     QSize baseSize = win->baseSize();
1074     QSize sizeIncrement = win->sizeIncrement();
1075
1076     if (minimumSize.width() > 0 || minimumSize.height() > 0)
1077         xcb_size_hints_set_min_size(&hints, minimumSize.width(), minimumSize.height());
1078
1079     if (maximumSize.width() < QWINDOWSIZE_MAX || maximumSize.height() < QWINDOWSIZE_MAX)
1080         xcb_size_hints_set_max_size(&hints,
1081                                     qMin(XCOORD_MAX, maximumSize.width()),
1082                                     qMin(XCOORD_MAX, maximumSize.height()));
1083
1084     if (sizeIncrement.width() > 0 || sizeIncrement.height() > 0) {
1085         xcb_size_hints_set_base_size(&hints, baseSize.width(), baseSize.height());
1086         xcb_size_hints_set_resize_inc(&hints, sizeIncrement.width(), sizeIncrement.height());
1087     }
1088
1089     xcb_set_wm_normal_hints(xcb_connection(), m_window, &hints);
1090 }
1091
1092 void QXcbWindow::requestActivateWindow()
1093 {
1094     if (m_mapped){
1095         updateNetWmUserTime(connection()->time());
1096         Q_XCB_CALL(xcb_set_input_focus(xcb_connection(), XCB_INPUT_FOCUS_PARENT, m_window, connection()->time()));
1097     }
1098     connection()->sync();
1099 }
1100
1101 QSurfaceFormat QXcbWindow::format() const
1102 {
1103     // ### return actual format
1104     return m_requestedFormat;
1105 }
1106
1107 #if defined(XCB_USE_EGL)
1108 QXcbEGLSurface *QXcbWindow::eglSurface() const
1109 {
1110     if (!m_eglSurface) {
1111         EGLDisplay display = connection()->egl_display();
1112         EGLConfig config = q_configFromGLFormat(display, window()->format(), true);
1113         EGLSurface surface = eglCreateWindowSurface(display, config, (EGLNativeWindowType)m_window, 0);
1114
1115         m_eglSurface = new QXcbEGLSurface(display, surface);
1116     }
1117
1118     return m_eglSurface;
1119 }
1120 #endif
1121
1122 void QXcbWindow::handleExposeEvent(const xcb_expose_event_t *event)
1123 {
1124     QRect rect(event->x, event->y, event->width, event->height);
1125
1126     if (m_exposeRegion.isEmpty())
1127         m_exposeRegion = rect;
1128     else
1129         m_exposeRegion |= rect;
1130
1131     // if count is non-zero there are more expose events pending
1132     if (event->count == 0) {
1133         QWindowSystemInterface::handleSynchronousExposeEvent(window(), m_exposeRegion);
1134         m_exposeRegion = QRegion();
1135     }
1136 }
1137
1138 void QXcbWindow::handleClientMessageEvent(const xcb_client_message_event_t *event)
1139 {
1140     if (event->format != 32)
1141         return;
1142
1143     if (event->type == atom(QXcbAtom::WM_PROTOCOLS)) {
1144         if (event->data.data32[0] == atom(QXcbAtom::WM_DELETE_WINDOW)) {
1145             QWindowSystemInterface::handleCloseEvent(window());
1146         } else if (event->data.data32[0] == atom(QXcbAtom::WM_TAKE_FOCUS)) {
1147             connection()->setTime(event->data.data32[1]);
1148         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_PING)) {
1149             xcb_client_message_event_t reply = *event;
1150
1151             reply.response_type = XCB_CLIENT_MESSAGE;
1152             reply.window = m_screen->root();
1153
1154             xcb_send_event(xcb_connection(), 0, m_screen->root(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&reply);
1155             xcb_flush(xcb_connection());
1156         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_SYNC_REQUEST)) {
1157             connection()->setTime(event->data.data32[1]);
1158             m_syncValue.lo = event->data.data32[2];
1159             m_syncValue.hi = event->data.data32[3];
1160         } else {
1161             qWarning() << "unhandled WM_PROTOCOLS message:" << connection()->atomName(event->data.data32[0]);
1162         }
1163     } else if (event->type == atom(QXcbAtom::XdndEnter)) {
1164         connection()->drag()->handleEnter(window(), event);
1165     } else if (event->type == atom(QXcbAtom::XdndPosition)) {
1166         connection()->drag()->handlePosition(window(), event, false);
1167     } else if (event->type == atom(QXcbAtom::XdndLeave)) {
1168         connection()->drag()->handleLeave(window(), event, false);
1169     } else if (event->type == atom(QXcbAtom::XdndDrop)) {
1170         connection()->drag()->handleDrop(window(), event, false);
1171     } else {
1172         qWarning() << "unhandled client message:" << connection()->atomName(event->type);
1173     }
1174 }
1175
1176 void QXcbWindow::handleConfigureNotifyEvent(const xcb_configure_notify_event_t *event)
1177 {
1178     QRect rect(event->x, event->y, event->width, event->height);
1179
1180     QPlatformWindow::setGeometry(rect);
1181     QWindowSystemInterface::handleGeometryChange(window(), rect);
1182
1183     m_dirtyFrameMargins = true;
1184
1185 #if XCB_USE_DRI2
1186     if (m_context)
1187         static_cast<QDri2Context *>(m_context)->resize(rect.size());
1188 #endif
1189 }
1190
1191 void QXcbWindow::handleMapNotifyEvent(const xcb_map_notify_event_t *event)
1192 {
1193     if (event->window == m_window) {
1194         m_mapped = true;
1195         QWindowSystemInterface::handleMapEvent(window());
1196     }
1197 }
1198
1199 void QXcbWindow::handleUnmapNotifyEvent(const xcb_unmap_notify_event_t *event)
1200 {
1201     if (event->window == m_window) {
1202         m_mapped = false;
1203         QWindowSystemInterface::handleUnmapEvent(window());
1204     }
1205 }
1206
1207 static Qt::MouseButtons translateMouseButtons(int s)
1208 {
1209     Qt::MouseButtons ret = 0;
1210     if (s & XCB_BUTTON_MASK_1)
1211         ret |= Qt::LeftButton;
1212     if (s & XCB_BUTTON_MASK_2)
1213         ret |= Qt::MidButton;
1214     if (s & XCB_BUTTON_MASK_3)
1215         ret |= Qt::RightButton;
1216     return ret;
1217 }
1218
1219 static Qt::MouseButton translateMouseButton(xcb_button_t s)
1220 {
1221     switch (s) {
1222     case 1:
1223         return Qt::LeftButton;
1224     case 2:
1225         return Qt::MidButton;
1226     case 3:
1227         return Qt::RightButton;
1228     default:
1229         return Qt::NoButton;
1230     }
1231 }
1232
1233 void QXcbWindow::handleButtonPressEvent(const xcb_button_press_event_t *event)
1234 {
1235     updateNetWmUserTime(event->time);
1236
1237     QPoint local(event->event_x, event->event_y);
1238     QPoint global(event->root_x, event->root_y);
1239
1240     Qt::KeyboardModifiers modifiers = Qt::NoModifier;
1241
1242     if (event->detail >= 4 && event->detail <= 7) {
1243         //logic borrowed from qapplication_x11.cpp
1244         int delta = 120 * ((event->detail == 4 || event->detail == 6) ? 1 : -1);
1245         bool hor = (((event->detail == 4 || event->detail == 5)
1246                      && (modifiers & Qt::AltModifier))
1247                     || (event->detail == 6 || event->detail == 7));
1248
1249         QWindowSystemInterface::handleWheelEvent(window(), event->time,
1250                                                  local, global, delta, hor ? Qt::Horizontal : Qt::Vertical);
1251         return;
1252     }
1253
1254     handleMouseEvent(event->detail, event->state, event->time, local, global);
1255 }
1256
1257 void QXcbWindow::handleButtonReleaseEvent(const xcb_button_release_event_t *event)
1258 {
1259     QPoint local(event->event_x, event->event_y);
1260     QPoint global(event->root_x, event->root_y);
1261
1262     handleMouseEvent(event->detail, event->state, event->time, local, global);
1263 }
1264
1265 void QXcbWindow::handleMotionNotifyEvent(const xcb_motion_notify_event_t *event)
1266 {
1267     QPoint local(event->event_x, event->event_y);
1268     QPoint global(event->root_x, event->root_y);
1269
1270     handleMouseEvent(event->detail, event->state, event->time, local, global);
1271 }
1272
1273 void QXcbWindow::handleMouseEvent(xcb_button_t detail, uint16_t state, xcb_timestamp_t time, const QPoint &local, const QPoint &global)
1274 {
1275     connection()->setTime(time);
1276
1277     Qt::MouseButtons buttons = translateMouseButtons(state);
1278     Qt::MouseButton button = translateMouseButton(detail);
1279
1280     buttons ^= button; // X event uses state *before*, Qt uses state *after*
1281
1282     QWindowSystemInterface::handleMouseEvent(window(), time, local, global, buttons);
1283 }
1284
1285 void QXcbWindow::handleEnterNotifyEvent(const xcb_enter_notify_event_t *event)
1286 {
1287     connection()->setTime(event->time);
1288
1289     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1290         || event->detail == XCB_NOTIFY_DETAIL_VIRTUAL
1291         || event->detail == XCB_NOTIFY_DETAIL_NONLINEAR_VIRTUAL)
1292     {
1293         return;
1294     }
1295
1296     QWindowSystemInterface::handleEnterEvent(window());
1297 }
1298
1299 void QXcbWindow::handleLeaveNotifyEvent(const xcb_leave_notify_event_t *event)
1300 {
1301     connection()->setTime(event->time);
1302
1303     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1304         || event->detail == XCB_NOTIFY_DETAIL_INFERIOR)
1305     {
1306         return;
1307     }
1308
1309     QWindowSystemInterface::handleLeaveEvent(window());
1310 }
1311
1312 void QXcbWindow::handleFocusInEvent(const xcb_focus_in_event_t *)
1313 {
1314     QWindowSystemInterface::handleWindowActivated(window());
1315 }
1316
1317 static bool focusInPeeker(xcb_generic_event_t *event)
1318 {
1319     if (!event) {
1320         // FocusIn event is not in the queue, proceed with FocusOut normally.
1321         QWindowSystemInterface::handleWindowActivated(0);
1322         return true;
1323     }
1324     uint response_type = event->response_type & ~0x80;
1325     return response_type == XCB_FOCUS_IN;
1326 }
1327
1328 void QXcbWindow::handleFocusOutEvent(const xcb_focus_out_event_t *)
1329 {
1330     // Do not set the active window to 0 if there is a FocusIn coming.
1331     // There is however no equivalent for XPutBackEvent so register a
1332     // callback for QXcbConnection instead.
1333     connection()->addPeekFunc(focusInPeeker);
1334 }
1335
1336 void QXcbWindow::updateSyncRequestCounter()
1337 {
1338     if (m_screen->syncRequestSupported() && (m_syncValue.lo != 0 || m_syncValue.hi != 0)) {
1339         Q_XCB_CALL(xcb_sync_set_counter(xcb_connection(), m_syncCounter, m_syncValue));
1340         xcb_flush(xcb_connection());
1341         connection()->sync();
1342
1343         m_syncValue.lo = 0;
1344         m_syncValue.hi = 0;
1345     }
1346 }
1347
1348 bool QXcbWindow::setKeyboardGrabEnabled(bool grab)
1349 {
1350     if (!grab) {
1351         xcb_ungrab_keyboard(xcb_connection(), XCB_TIME_CURRENT_TIME);
1352         return true;
1353     }
1354     xcb_grab_keyboard_cookie_t cookie = xcb_grab_keyboard(xcb_connection(), false,
1355                                                           m_window, XCB_TIME_CURRENT_TIME,
1356                                                           XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
1357     xcb_generic_error_t *err;
1358     xcb_grab_keyboard_reply_t *reply = xcb_grab_keyboard_reply(xcb_connection(), cookie, &err);
1359     bool result = !(err || !reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1360     free(reply);
1361     free(err);
1362     return result;
1363 }
1364
1365 bool QXcbWindow::setMouseGrabEnabled(bool grab)
1366 {
1367     if (!grab) {
1368         xcb_ungrab_pointer(xcb_connection(), XCB_TIME_CURRENT_TIME);
1369         return true;
1370     }
1371     xcb_grab_pointer_cookie_t cookie = xcb_grab_pointer(xcb_connection(), false, m_window,
1372                                                         (XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE
1373                                                          | XCB_EVENT_MASK_BUTTON_MOTION | XCB_EVENT_MASK_ENTER_WINDOW
1374                                                          | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_POINTER_MOTION),
1375                                                         XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC,
1376                                                         XCB_WINDOW_NONE, XCB_CURSOR_NONE,
1377                                                         XCB_TIME_CURRENT_TIME);
1378     xcb_generic_error_t *err;
1379     xcb_grab_pointer_reply_t *reply = xcb_grab_pointer_reply(xcb_connection(), cookie, &err);
1380     bool result = !(err || !reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1381     free(reply);
1382     free(err);
1383     return result;
1384 }
1385
1386 void QXcbWindow::setCursor(xcb_cursor_t cursor)
1387 {
1388     xcb_change_window_attributes(xcb_connection(), m_window, XCB_CW_CURSOR, &cursor);
1389     xcb_flush(xcb_connection());
1390 }