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