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