src/plugins/platforms/xcb/qxcbwindow.cpp

   1 /****************************************************************************
   2 **
   3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
   4 ** Contact: http://www.qt-project.org/
   5 **
   6 ** This file is part of the plugins of the Qt Toolkit.
   7 **
   8 ** $QT_BEGIN_LICENSE:LGPL$
   9 ** GNU Lesser General Public License Usage
  10 ** This file may be used under the terms of the GNU Lesser General Public
  11 ** License version 2.1 as published by the Free Software Foundation and
  12 ** appearing in the file LICENSE.LGPL included in the packaging of this
  13 ** file. Please review the following information to ensure the GNU Lesser
  14 ** General Public License version 2.1 requirements will be met:
  15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
  16 **
  17 ** In addition, as a special exception, Nokia gives you certain additional
  18 ** rights. These rights are described in the Nokia Qt LGPL Exception
  19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
  20 **
  21 ** GNU General Public License Usage
  22 ** Alternatively, this file may be used under the terms of the GNU General
  23 ** Public License version 3.0 as published by the Free Software Foundation
  24 ** and appearing in the file LICENSE.GPL included in the packaging of this
  25 ** file. Please review the following information to ensure the GNU General
  26 ** Public License version 3.0 requirements will be met:
  27 ** http://www.gnu.org/copyleft/gpl.html.
  28 **
  29 ** Other Usage
  30 ** Alternatively, this file may be used in accordance with the terms and
  31 ** conditions contained in a signed written agreement between you and Nokia.
  32 **
  33 **
  34 **
  35 **
  36 **
  37 **
  38 ** $QT_END_LICENSE$
  39 **
  40 ****************************************************************************/
  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 #ifdef XCB_USE_DRI2
  54 #include "qdri2context.h"
  55 #endif
  56
  57 // FIXME This workaround can be removed for xcb-icccm > 3.8
  58 #define class class_name
  59 #include <xcb/xcb_icccm.h>
  60 #undef class
  61 #include <xcb/xfixes.h>
  62
  63 // xcb-icccm 3.8 support
  64 #ifdef XCB_ICCCM_NUM_WM_SIZE_HINTS_ELEMENTS
  65 #define xcb_get_wm_hints_reply xcb_icccm_get_wm_hints_reply
  66 #define xcb_get_wm_hints xcb_icccm_get_wm_hints
  67 #define xcb_set_wm_hints xcb_icccm_set_wm_hints
  68 #define xcb_set_wm_normal_hints xcb_icccm_set_wm_normal_hints
  69 #define xcb_size_hints_set_base_size xcb_icccm_size_hints_set_base_size
  70 #define xcb_size_hints_set_max_size xcb_icccm_size_hints_set_max_size
  71 #define xcb_size_hints_set_min_size xcb_icccm_size_hints_set_min_size
  72 #define xcb_size_hints_set_position xcb_icccm_size_hints_set_position
  73 #define xcb_size_hints_set_resize_inc xcb_icccm_size_hints_set_resize_inc
  74 #define xcb_size_hints_set_size xcb_icccm_size_hints_set_size
  75 #define xcb_size_hints_set_win_gravity xcb_icccm_size_hints_set_win_gravity
  76 #define xcb_wm_hints_set_iconic xcb_icccm_wm_hints_set_iconic
  77 #define xcb_wm_hints_set_normal xcb_icccm_wm_hints_set_normal
  78 #define xcb_wm_hints_t xcb_icccm_wm_hints_t
  79 #define XCB_WM_STATE_ICONIC XCB_ICCCM_WM_STATE_ICONIC
  80 #define XCB_WM_STATE_WITHDRAWN XCB_ICCCM_WM_STATE_WITHDRAWN
  81 #endif
  82
  83 #include <private/qguiapplication_p.h>
  84 #include <private/qwindow_p.h>
  85
  86 #include <QtGui/QPlatformBackingStore>
  87 #include <QtGui/QWindowSystemInterface>
  88
  89 #include <stdio.h>
  90
  91 #ifdef XCB_USE_XLIB
  92 #include <X11/Xlib.h>
  93 #include <X11/Xutil.h>
  94 #endif
  95
  96 #ifdef XCB_USE_XINPUT2_MAEMO
  97 #include <X11/extensions/XInput2.h>
  98 #endif
  99
 100 #if defined(XCB_USE_GLX)
 101 #include "qglxintegration.h"
 102 #include <QtPlatformSupport/private/qglxconvenience_p.h>
 103 #elif defined(XCB_USE_EGL)
 104 #include "qxcbeglsurface.h"
 105 #include <QtPlatformSupport/private/qeglconvenience_p.h>
 106 #include <QtPlatformSupport/private/qxlibeglintegration_p.h>
 107 #endif
 108
 109 #define XCOORD_MAX 16383
 110
 111 //#ifdef NET_WM_STATE_DEBUG
 112
 113 QT_BEGIN_NAMESPACE
 114
 115 // Returns true if we should set WM_TRANSIENT_FOR on \a w
 116 static inline bool isTransient(const QWindow *w)
 117 {
 118     return w->windowType() == Qt::Dialog
 119            || w->windowType() == Qt::Sheet
 120            || w->windowType() == Qt::Tool
 121            || w->windowType() == Qt::SplashScreen
 122            || w->windowType() == Qt::ToolTip
 123            || w->windowType() == Qt::Drawer
 124            || w->windowType() == Qt::Popup;
 125 }
 126
 127 static inline QImage::Format imageFormatForDepth(int depth)
 128 {
 129     switch (depth) {
 130         case 32: return QImage::Format_ARGB32_Premultiplied;
 131         case 24: return QImage::Format_RGB32;
 132         case 16: return QImage::Format_RGB16;
 133         default: return QImage::Format_Invalid;
 134     }
 135 }
 136
 137 QXcbWindow::QXcbWindow(QWindow *window)
 138     : QPlatformWindow(window)
 139     , m_window(0)
 140     , m_syncCounter(0)
 141     , m_mapped(false)
 142     , m_transparent(false)
 143     , m_netWmUserTimeWindow(XCB_NONE)
 144 #if defined(XCB_USE_EGL)
 145     , m_eglSurface(0)
 146 #endif
 147 {
 148     m_screen = static_cast<QXcbScreen *>(window->screen()->handle());
 149
 150     setConnection(m_screen->connection());
 151
 152     create();
 153 }
 154
 155 void QXcbWindow::create()
 156 {
 157     destroy();
 158
 159     m_windowState = Qt::WindowNoState;
 160
 161     Qt::WindowType type = window()->windowType();
 162
 163     if (type == Qt::Desktop) {
 164         m_window = m_screen->root();
 165         m_depth = m_screen->screen()->root_depth;
 166         m_imageFormat = imageFormatForDepth(m_depth);
 167         connection()->addWindow(m_window, this);
 168         return;
 169     }
 170
 171     const quint32 mask = XCB_CW_BACK_PIXMAP | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_SAVE_UNDER | XCB_CW_EVENT_MASK;
 172     const quint32 values[] = {
 173         // XCB_CW_BACK_PIXMAP
 174         XCB_NONE,
 175         // XCB_CW_OVERRIDE_REDIRECT
 176         type == Qt::Popup || type == Qt::ToolTip,
 177         // XCB_CW_SAVE_UNDER
 178         type == Qt::Popup || type == Qt::Tool || type == Qt::SplashScreen || type == Qt::ToolTip || type == Qt::Drawer,
 179         // XCB_CW_EVENT_MASK
 180         XCB_EVENT_MASK_EXPOSURE
 181         | XCB_EVENT_MASK_STRUCTURE_NOTIFY
 182         | XCB_EVENT_MASK_KEY_PRESS
 183         | XCB_EVENT_MASK_KEY_RELEASE
 184         | XCB_EVENT_MASK_BUTTON_PRESS
 185         | XCB_EVENT_MASK_BUTTON_RELEASE
 186         | XCB_EVENT_MASK_BUTTON_MOTION
 187         | XCB_EVENT_MASK_ENTER_WINDOW
 188         | XCB_EVENT_MASK_LEAVE_WINDOW
 189         | XCB_EVENT_MASK_POINTER_MOTION
 190         | XCB_EVENT_MASK_PROPERTY_CHANGE
 191         | XCB_EVENT_MASK_FOCUS_CHANGE
 192     };
 193
 194     QRect rect = window()->geometry();
 195     QPlatformWindow::setGeometry(rect);
 196
 197     rect.setWidth(qBound(1, rect.width(), XCOORD_MAX));
 198     rect.setHeight(qBound(1, rect.height(), XCOORD_MAX));
 199
 200     xcb_window_t xcb_parent_id = m_screen->root();
 201     if (parent())
 202         xcb_parent_id = static_cast<QXcbWindow *>(parent())->xcb_window();
 203
 204     m_format = window()->requestedFormat();
 205
 206 #if (defined(XCB_USE_GLX) || defined(XCB_USE_EGL)) && defined(XCB_USE_XLIB)
 207     if (QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::OpenGL)
 208         || m_format.hasAlpha())
 209     {
 210 #if defined(XCB_USE_GLX)
 211         XVisualInfo *visualInfo = qglx_findVisualInfo(DISPLAY_FROM_XCB(m_screen), m_screen->screenNumber(), &m_format);
 212         if (!visualInfo)
 213             qFatal("Could not initialize GLX");
 214 #elif defined(XCB_USE_EGL)
 215         EGLDisplay eglDisplay = connection()->egl_display();
 216         EGLConfig eglConfig = q_configFromGLFormat(eglDisplay, m_format, true);
 217         m_format = q_glFormatFromConfig(eglDisplay, eglConfig);
 218
 219         VisualID id = QXlibEglIntegration::getCompatibleVisualId(DISPLAY_FROM_XCB(this), eglDisplay, eglConfig);
 220
 221         XVisualInfo visualInfoTemplate;
 222         memset(&visualInfoTemplate, 0, sizeof(XVisualInfo));
 223         visualInfoTemplate.visualid = id;
 224
 225         XVisualInfo *visualInfo;
 226         int matchingCount = 0;
 227         visualInfo = XGetVisualInfo(DISPLAY_FROM_XCB(this), VisualIDMask, &visualInfoTemplate, &matchingCount);
 228         if (!visualInfo)
 229             qFatal("Could not initialize EGL");
 230 #endif //XCB_USE_GLX
 231         m_depth = visualInfo->depth;
 232         m_imageFormat = imageFormatForDepth(m_depth);
 233         Colormap cmap = XCreateColormap(DISPLAY_FROM_XCB(this), xcb_parent_id, visualInfo->visual, AllocNone);
 234
 235         XSetWindowAttributes a;
 236         a.background_pixel = WhitePixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 237         a.border_pixel = BlackPixel(DISPLAY_FROM_XCB(this), m_screen->screenNumber());
 238         a.colormap = cmap;
 239
 240         m_visualId = visualInfo->visualid;
 241
 242         m_window = XCreateWindow(DISPLAY_FROM_XCB(this), xcb_parent_id, rect.x(), rect.y(), rect.width(), rect.height(),
 243                                   0, visualInfo->depth, InputOutput, visualInfo->visual,
 244                                   CWBackPixel|CWBorderPixel|CWColormap, &a);
 245
 246         XFree(visualInfo);
 247     } else
 248 #endif //defined(XCB_USE_GLX) || defined(XCB_USE_EGL)
 249     {
 250         m_window = xcb_generate_id(xcb_connection());
 251         m_depth = m_screen->screen()->root_depth;
 252         m_imageFormat = imageFormatForDepth(m_depth);
 253         m_visualId = m_screen->screen()->root_visual;
 254
 255         Q_XCB_CALL(xcb_create_window(xcb_connection(),
 256                                      XCB_COPY_FROM_PARENT,            // depth -- same as root
 257                                      m_window,                        // window id
 258                                      xcb_parent_id,                   // parent window id
 259                                      rect.x(),
 260                                      rect.y(),
 261                                      rect.width(),
 262                                      rect.height(),
 263                                      0,                               // border width
 264                                      XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
 265                                      m_visualId,                      // visual
 266                                      0,                               // value mask
 267                                      0));                             // value list
 268     }
 269
 270     connection()->addWindow(m_window, this);
 271
 272     Q_XCB_CALL(xcb_change_window_attributes(xcb_connection(), m_window, mask, values));
 273
 274     propagateSizeHints();
 275
 276     xcb_atom_t properties[4];
 277     int propertyCount = 0;
 278     properties[propertyCount++] = atom(QXcbAtom::WM_DELETE_WINDOW);
 279     properties[propertyCount++] = atom(QXcbAtom::WM_TAKE_FOCUS);
 280     properties[propertyCount++] = atom(QXcbAtom::_NET_WM_PING);
 281
 282     if (m_screen->syncRequestSupported())
 283         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_SYNC_REQUEST);
 284
 285     if (window()->windowFlags() & Qt::WindowContextHelpButtonHint)
 286         properties[propertyCount++] = atom(QXcbAtom::_NET_WM_CONTEXT_HELP);
 287
 288     Q_XCB_CALL(xcb_change_property(xcb_connection(),
 289                                    XCB_PROP_MODE_REPLACE,
 290                                    m_window,
 291                                    atom(QXcbAtom::WM_PROTOCOLS),
 292                                    XCB_ATOM_ATOM,
 293                                    32,
 294                                    propertyCount,
 295                                    properties));
 296     m_syncValue.hi = 0;
 297     m_syncValue.lo = 0;
 298
 299     if (m_screen->syncRequestSupported()) {
 300         m_syncCounter = xcb_generate_id(xcb_connection());
 301         Q_XCB_CALL(xcb_sync_create_counter(xcb_connection(), m_syncCounter, m_syncValue));
 302
 303         Q_XCB_CALL(xcb_change_property(xcb_connection(),
 304                                        XCB_PROP_MODE_REPLACE,
 305                                        m_window,
 306                                        atom(QXcbAtom::_NET_WM_SYNC_REQUEST_COUNTER),
 307                                        XCB_ATOM_CARDINAL,
 308                                        32,
 309                                        1,
 310                                        &m_syncCounter));
 311     }
 312
 313     // set the PID to let the WM kill the application if unresponsive
 314     long pid = getpid();
 315     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 316                                    atom(QXcbAtom::_NET_WM_PID), XCB_ATOM_CARDINAL, 32,
 317                                    1, &pid));
 318
 319     xcb_wm_hints_t hints;
 320     memset(&hints, 0, sizeof(hints));
 321     xcb_wm_hints_set_normal(&hints);
 322
 323     xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 324
 325     xcb_window_t leader = m_screen->clientLeader();
 326     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 327                                    atom(QXcbAtom::WM_CLIENT_LEADER), XCB_ATOM_WINDOW, 32,
 328                                    1, &leader));
 329
 330 #ifdef XCB_USE_XINPUT2_MAEMO
 331     if (connection()->isUsingXInput2()) {
 332         XIEventMask xieventmask;
 333         uchar bitmask[2] = { 0, 0 };
 334
 335         xieventmask.deviceid = XIAllMasterDevices;
 336         xieventmask.mask = bitmask;
 337         xieventmask.mask_len = sizeof(bitmask);
 338
 339         XISetMask(bitmask, XI_ButtonPress);
 340         XISetMask(bitmask, XI_ButtonRelease);
 341         XISetMask(bitmask, XI_Motion);
 342
 343         XISelectEvents(DISPLAY_FROM_XCB(this), m_window, &xieventmask, 1);
 344     }
 345 #endif
 346
 347     setWindowFlags(window()->windowFlags());
 348     setWindowTitle(window()->windowTitle());
 349     setWindowState(window()->windowState());
 350
 351     if (window()->windowFlags() & Qt::WindowTransparentForInput)
 352         setTransparentForMouseEvents(true);
 353
 354     connection()->drag()->dndEnable(this, true);
 355 }
 356
 357 QXcbWindow::~QXcbWindow()
 358 {
 359     destroy();
 360 }
 361
 362 void QXcbWindow::destroy()
 363 {
 364     if (m_syncCounter && m_screen->syncRequestSupported())
 365         Q_XCB_CALL(xcb_sync_destroy_counter(xcb_connection(), m_syncCounter));
 366     if (m_window) {
 367         connection()->removeWindow(m_window);
 368         Q_XCB_CALL(xcb_destroy_window(xcb_connection(), m_window));
 369     }
 370     m_mapped = false;
 371
 372 #if defined(XCB_USE_EGL)
 373     delete m_eglSurface;
 374     m_eglSurface = 0;
 375 #endif
 376 }
 377
 378 void QXcbWindow::setGeometry(const QRect &rect)
 379 {
 380     QPlatformWindow::setGeometry(rect);
 381
 382     propagateSizeHints();
 383
 384     const quint32 mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
 385     const quint32 values[] = { rect.x(),
 386                                rect.y(),
 387                                qBound(1, rect.width(), XCOORD_MAX),
 388                                qBound(1, rect.height(), XCOORD_MAX) };
 389
 390     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
 391
 392     xcb_flush(xcb_connection());
 393 }
 394
 395 QMargins QXcbWindow::frameMargins() const
 396 {
 397     if (m_dirtyFrameMargins) {
 398         xcb_window_t window = m_window;
 399         xcb_window_t parent = m_window;
 400
 401         bool foundRoot = false;
 402
 403         const QVector<xcb_window_t> &virtualRoots =
 404             connection()->wmSupport()->virtualRoots();
 405
 406         while (!foundRoot) {
 407             xcb_query_tree_cookie_t cookie = xcb_query_tree(xcb_connection(), parent);
 408
 409             xcb_generic_error_t *error;
 410             xcb_query_tree_reply_t *reply = xcb_query_tree_reply(xcb_connection(), cookie, &error);
 411             if (reply) {
 412                 if (reply->root == reply->parent || virtualRoots.indexOf(reply->parent) != -1) {
 413                     foundRoot = true;
 414                 } else {
 415                     window = parent;
 416                     parent = reply->parent;
 417                 }
 418
 419                 free(reply);
 420             } else {
 421                 if (error) {
 422                     connection()->handleXcbError(error);
 423                     free(error);
 424                 }
 425
 426                 m_dirtyFrameMargins = false;
 427                 m_frameMargins = QMargins();
 428                 return m_frameMargins;
 429             }
 430         }
 431
 432         QPoint offset;
 433
 434         xcb_generic_error_t *error;
 435         xcb_translate_coordinates_reply_t *reply =
 436             xcb_translate_coordinates_reply(
 437                 xcb_connection(),
 438                 xcb_translate_coordinates(xcb_connection(), window, parent, 0, 0),
 439                 &error);
 440
 441         if (reply) {
 442             offset = QPoint(reply->dst_x, reply->dst_y);
 443             free(reply);
 444         } else if (error) {
 445             free(error);
 446         }
 447
 448         xcb_get_geometry_reply_t *geom =
 449             xcb_get_geometry_reply(
 450                 xcb_connection(),
 451                 xcb_get_geometry(xcb_connection(), parent),
 452                 &error);
 453
 454         if (geom) {
 455             // --
 456             // add the border_width for the window managers frame... some window managers
 457             // do not use a border_width of zero for their frames, and if we the left and
 458             // top strut, we ensure that pos() is absolutely correct.  frameGeometry()
 459             // will still be incorrect though... perhaps i should have foffset as well, to
 460             // indicate the frame offset (equal to the border_width on X).
 461             // - Brad
 462             // -- copied from qwidget_x11.cpp
 463
 464             int left = offset.x() + geom->border_width;
 465             int top = offset.y() + geom->border_width;
 466             int right = geom->width + geom->border_width - geometry().width() - offset.x();
 467             int bottom = geom->height + geom->border_width - geometry().height() - offset.y();
 468
 469             m_frameMargins = QMargins(left, top, right, bottom);
 470
 471             free(geom);
 472         } else if (error) {
 473             free(error);
 474         }
 475
 476         m_dirtyFrameMargins = false;
 477     }
 478
 479     return m_frameMargins;
 480 }
 481
 482 void QXcbWindow::setVisible(bool visible)
 483 {
 484     if (visible)
 485         show();
 486     else
 487         hide();
 488 }
 489
 490 void QXcbWindow::show()
 491 {
 492     if (window()->isTopLevel()) {
 493         xcb_get_property_cookie_t cookie = xcb_get_wm_hints(xcb_connection(), m_window);
 494
 495         xcb_generic_error_t *error;
 496
 497         xcb_wm_hints_t hints;
 498         xcb_get_wm_hints_reply(xcb_connection(), cookie, &hints, &error);
 499
 500         if (error) {
 501             connection()->handleXcbError(error);
 502             free(error);
 503         }
 504
 505         if (window()->windowState() & Qt::WindowMinimized)
 506             xcb_wm_hints_set_iconic(&hints);
 507         else
 508             xcb_wm_hints_set_normal(&hints);
 509
 510         xcb_set_wm_hints(xcb_connection(), m_window, &hints);
 511
 512         // update WM_NORMAL_HINTS
 513         propagateSizeHints();
 514
 515         // update WM_TRANSIENT_FOR
 516         if (window()->transientParent() && isTransient(window())) {
 517             QXcbWindow *transientXcbParent = static_cast<QXcbWindow *>(window()->transientParent()->handle());
 518             if (transientXcbParent) {
 519                 // ICCCM 4.1.2.6
 520                 xcb_window_t parentWindow = transientXcbParent->xcb_window();
 521
 522                 // todo: set transient for group (wm_client_leader) if no parent, a la qwidget_x11.cpp
 523                 Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 524                                                XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, 32,
 525                                                1, &parentWindow));
 526             }
 527         }
 528
 529         // update _MOTIF_WM_HINTS
 530         updateMotifWmHintsBeforeMap();
 531
 532         // update _NET_WM_STATE
 533         updateNetWmStateBeforeMap();
 534     }
 535
 536     Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 537     xcb_flush(xcb_connection());
 538
 539     connection()->sync();
 540 }
 541
 542 void QXcbWindow::hide()
 543 {
 544     Q_XCB_CALL(xcb_unmap_window(xcb_connection(), m_window));
 545
 546     // send synthetic UnmapNotify event according to icccm 4.1.4
 547     xcb_unmap_notify_event_t event;
 548     event.response_type = XCB_UNMAP_NOTIFY;
 549     event.event = m_screen->root();
 550     event.window = m_window;
 551     event.from_configure = false;
 552     Q_XCB_CALL(xcb_send_event(xcb_connection(), false, m_screen->root(),
 553                               XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&event));
 554
 555     xcb_flush(xcb_connection());
 556
 557     m_mapped = false;
 558 }
 559
 560 struct QtMotifWmHints {
 561     quint32 flags, functions, decorations;
 562     qint32 input_mode;
 563     quint32 status;
 564 };
 565
 566 enum {
 567     MWM_HINTS_FUNCTIONS   = (1L << 0),
 568
 569     MWM_FUNC_ALL      = (1L << 0),
 570     MWM_FUNC_RESIZE   = (1L << 1),
 571     MWM_FUNC_MOVE     = (1L << 2),
 572     MWM_FUNC_MINIMIZE = (1L << 3),
 573     MWM_FUNC_MAXIMIZE = (1L << 4),
 574     MWM_FUNC_CLOSE    = (1L << 5),
 575
 576     MWM_HINTS_DECORATIONS = (1L << 1),
 577
 578     MWM_DECOR_ALL      = (1L << 0),
 579     MWM_DECOR_BORDER   = (1L << 1),
 580     MWM_DECOR_RESIZEH  = (1L << 2),
 581     MWM_DECOR_TITLE    = (1L << 3),
 582     MWM_DECOR_MENU     = (1L << 4),
 583     MWM_DECOR_MINIMIZE = (1L << 5),
 584     MWM_DECOR_MAXIMIZE = (1L << 6),
 585
 586     MWM_HINTS_INPUT_MODE = (1L << 2),
 587
 588     MWM_INPUT_MODELESS                  = 0L,
 589     MWM_INPUT_PRIMARY_APPLICATION_MODAL = 1L,
 590     MWM_INPUT_FULL_APPLICATION_MODAL    = 3L
 591 };
 592
 593 static QtMotifWmHints getMotifWmHints(QXcbConnection *c, xcb_window_t window)
 594 {
 595     QtMotifWmHints hints;
 596
 597     xcb_get_property_cookie_t get_cookie =
 598         xcb_get_property(c->xcb_connection(), 0, window, c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 599                          c->atom(QXcbAtom::_MOTIF_WM_HINTS), 0, 20);
 600
 601     xcb_generic_error_t *error;
 602
 603     xcb_get_property_reply_t *reply =
 604         xcb_get_property_reply(c->xcb_connection(), get_cookie, &error);
 605
 606     if (reply && reply->format == 32 && reply->type == c->atom(QXcbAtom::_MOTIF_WM_HINTS)) {
 607         hints = *((QtMotifWmHints *)xcb_get_property_value(reply));
 608     } else if (error) {
 609         c->handleXcbError(error);
 610         free(error);
 611
 612         hints.flags = 0L;
 613         hints.functions = MWM_FUNC_ALL;
 614         hints.decorations = MWM_DECOR_ALL;
 615         hints.input_mode = 0L;
 616         hints.status = 0L;
 617     }
 618
 619     free(reply);
 620
 621     return hints;
 622 }
 623
 624 static void setMotifWmHints(QXcbConnection *c, xcb_window_t window, const QtMotifWmHints &hints)
 625 {
 626     if (hints.flags != 0l) {
 627         Q_XCB_CALL2(xcb_change_property(c->xcb_connection(),
 628                                        XCB_PROP_MODE_REPLACE,
 629                                        window,
 630                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 631                                        c->atom(QXcbAtom::_MOTIF_WM_HINTS),
 632                                        32,
 633                                        5,
 634                                        &hints), c);
 635     } else {
 636         Q_XCB_CALL2(xcb_delete_property(c->xcb_connection(), window, c->atom(QXcbAtom::_MOTIF_WM_HINTS)), c);
 637     }
 638 }
 639
 640 void QXcbWindow::printNetWmState(const QVector<xcb_atom_t> &state)
 641 {
 642     printf("_NET_WM_STATE (%d): ", state.size());
 643     for (int i = 0; i < state.size(); ++i) {
 644 #define CHECK_WM_STATE(state_atom) \
 645         if (state.at(i) == atom(QXcbAtom::state_atom))\
 646             printf(#state_atom " ");
 647         CHECK_WM_STATE(_NET_WM_STATE_ABOVE)
 648         CHECK_WM_STATE(_NET_WM_STATE_BELOW)
 649         CHECK_WM_STATE(_NET_WM_STATE_FULLSCREEN)
 650         CHECK_WM_STATE(_NET_WM_STATE_MAXIMIZED_HORZ)
 651         CHECK_WM_STATE(_NET_WM_STATE_MAXIMIZED_VERT)
 652         CHECK_WM_STATE(_NET_WM_STATE_MODAL)
 653         CHECK_WM_STATE(_NET_WM_STATE_STAYS_ON_TOP)
 654         CHECK_WM_STATE(_NET_WM_STATE_DEMANDS_ATTENTION)
 655 #undef CHECK_WM_STATE
 656     }
 657     printf("\n");
 658 }
 659
 660 QVector<xcb_atom_t> QXcbWindow::getNetWmState()
 661 {
 662     QVector<xcb_atom_t> result;
 663
 664     xcb_get_property_cookie_t get_cookie =
 665         xcb_get_property(xcb_connection(), 0, m_window, atom(QXcbAtom::_NET_WM_STATE),
 666                          XCB_ATOM_ATOM, 0, 1024);
 667
 668     xcb_generic_error_t *error;
 669
 670     xcb_get_property_reply_t *reply =
 671         xcb_get_property_reply(xcb_connection(), get_cookie, &error);
 672
 673     if (reply && reply->format == 32 && reply->type == XCB_ATOM_ATOM) {
 674         result.resize(reply->length);
 675
 676         memcpy(result.data(), xcb_get_property_value(reply), reply->length * sizeof(xcb_atom_t));
 677
 678 #ifdef NET_WM_STATE_DEBUG
 679         printf("getting net wm state (%x)\n", m_window);
 680         printNetWmState(result);
 681 #endif
 682
 683         free(reply);
 684     } else if (error) {
 685         connection()->handleXcbError(error);
 686         free(error);
 687     } else {
 688 #ifdef NET_WM_STATE_DEBUG
 689         printf("getting net wm state (%x), empty\n", m_window);
 690 #endif
 691     }
 692
 693     return result;
 694 }
 695
 696 void QXcbWindow::setNetWmState(const QVector<xcb_atom_t> &atoms)
 697 {
 698     if (atoms.isEmpty()) {
 699         Q_XCB_CALL(xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_STATE)));
 700     } else {
 701         Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 702                                        atom(QXcbAtom::_NET_WM_STATE), XCB_ATOM_ATOM, 32,
 703                                        atoms.count(), atoms.constData()));
 704     }
 705     xcb_flush(xcb_connection());
 706 }
 707
 708
 709 Qt::WindowFlags QXcbWindow::setWindowFlags(Qt::WindowFlags flags)
 710 {
 711     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 712
 713     if (type == Qt::ToolTip)
 714         flags |= Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint;
 715     if (type == Qt::Popup)
 716         flags |= Qt::X11BypassWindowManagerHint;
 717
 718     if (flags & Qt::WindowTransparentForInput) {
 719         uint32_t mask = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_VISIBILITY_CHANGE
 720                  | XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_RESIZE_REDIRECT
 721                 | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT
 722                 | XCB_EVENT_MASK_FOCUS_CHANGE  | XCB_EVENT_MASK_PROPERTY_CHANGE
 723                 | XCB_EVENT_MASK_COLOR_MAP_CHANGE | XCB_EVENT_MASK_OWNER_GRAB_BUTTON;
 724         xcb_change_window_attributes(xcb_connection(), xcb_window(), XCB_CW_EVENT_MASK, &mask);
 725     }
 726
 727     setNetWmWindowFlags(flags);
 728     setMotifWindowFlags(flags);
 729
 730     setTransparentForMouseEvents(flags & Qt::WindowTransparentForInput);
 731
 732     return flags;
 733 }
 734
 735 void QXcbWindow::setMotifWindowFlags(Qt::WindowFlags flags)
 736 {
 737     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 738
 739     QtMotifWmHints mwmhints;
 740     mwmhints.flags = 0L;
 741     mwmhints.functions = 0L;
 742     mwmhints.decorations = 0;
 743     mwmhints.input_mode = 0L;
 744     mwmhints.status = 0L;
 745
 746     if (type != Qt::SplashScreen) {
 747         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 748
 749         bool customize = flags & Qt::CustomizeWindowHint;
 750         if (!(flags & Qt::FramelessWindowHint) && !(customize && !(flags & Qt::WindowTitleHint))) {
 751             mwmhints.decorations |= MWM_DECOR_BORDER;
 752             mwmhints.decorations |= MWM_DECOR_RESIZEH;
 753
 754             if (flags & Qt::WindowTitleHint)
 755                 mwmhints.decorations |= MWM_DECOR_TITLE;
 756
 757             if (flags & Qt::WindowSystemMenuHint)
 758                 mwmhints.decorations |= MWM_DECOR_MENU;
 759
 760             if (flags & Qt::WindowMinimizeButtonHint) {
 761                 mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 762                 mwmhints.functions |= MWM_FUNC_MINIMIZE;
 763             }
 764
 765             if (flags & Qt::WindowMaximizeButtonHint) {
 766                 mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 767                 mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 768             }
 769
 770             if (flags & Qt::WindowCloseButtonHint)
 771                 mwmhints.functions |= MWM_FUNC_CLOSE;
 772         }
 773     } else {
 774         // if type == Qt::SplashScreen
 775         mwmhints.decorations = MWM_DECOR_ALL;
 776     }
 777
 778     if (mwmhints.functions != 0) {
 779         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 780         mwmhints.functions |= MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 781     } else {
 782         mwmhints.functions = MWM_FUNC_ALL;
 783     }
 784
 785     if (!(flags & Qt::FramelessWindowHint)
 786         && flags & Qt::CustomizeWindowHint
 787         && flags & Qt::WindowTitleHint
 788         && !(flags &
 789              (Qt::WindowMinimizeButtonHint
 790               | Qt::WindowMaximizeButtonHint
 791               | Qt::WindowCloseButtonHint)))
 792     {
 793         // a special case - only the titlebar without any button
 794         mwmhints.flags = MWM_HINTS_FUNCTIONS;
 795         mwmhints.functions = MWM_FUNC_MOVE | MWM_FUNC_RESIZE;
 796         mwmhints.decorations = 0;
 797     }
 798
 799     setMotifWmHints(connection(), m_window, mwmhints);
 800 }
 801
 802 void QXcbWindow::changeNetWmState(bool set, xcb_atom_t one, xcb_atom_t two)
 803 {
 804     xcb_client_message_event_t event;
 805
 806     event.response_type = XCB_CLIENT_MESSAGE;
 807     event.format = 32;
 808     event.window = m_window;
 809     event.type = atom(QXcbAtom::_NET_WM_STATE);
 810     event.data.data32[0] = set ? 1 : 0;
 811     event.data.data32[1] = one;
 812     event.data.data32[2] = two;
 813     event.data.data32[3] = 0;
 814     event.data.data32[4] = 0;
 815
 816     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));
 817 }
 818
 819 Qt::WindowState QXcbWindow::setWindowState(Qt::WindowState state)
 820 {
 821     if (state == m_windowState)
 822         return state;
 823
 824     // unset old state
 825     switch (m_windowState) {
 826     case Qt::WindowMinimized:
 827         Q_XCB_CALL(xcb_map_window(xcb_connection(), m_window));
 828         break;
 829     case Qt::WindowMaximized:
 830         changeNetWmState(false,
 831                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 832                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 833         break;
 834     case Qt::WindowFullScreen:
 835         changeNetWmState(false, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 836         break;
 837     default:
 838         break;
 839     }
 840
 841     // set new state
 842     switch (state) {
 843     case Qt::WindowMinimized:
 844         {
 845             xcb_client_message_event_t event;
 846
 847             event.response_type = XCB_CLIENT_MESSAGE;
 848             event.format = 32;
 849             event.window = m_window;
 850             event.type = atom(QXcbAtom::WM_CHANGE_STATE);
 851             event.data.data32[0] = XCB_WM_STATE_ICONIC;
 852             event.data.data32[1] = 0;
 853             event.data.data32[2] = 0;
 854             event.data.data32[3] = 0;
 855             event.data.data32[4] = 0;
 856
 857             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));
 858         }
 859         break;
 860     case Qt::WindowMaximized:
 861         changeNetWmState(true,
 862                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ),
 863                          atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 864         break;
 865     case Qt::WindowFullScreen:
 866         changeNetWmState(true, atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 867         break;
 868     case Qt::WindowNoState:
 869         break;
 870     default:
 871         break;
 872     }
 873
 874     connection()->sync();
 875
 876     m_windowState = state;
 877     return m_windowState;
 878 }
 879
 880 void QXcbWindow::setNetWmWindowFlags(Qt::WindowFlags flags)
 881 {
 882     // in order of decreasing priority
 883     QVector<uint> windowTypes;
 884
 885     Qt::WindowType type = static_cast<Qt::WindowType>(int(flags & Qt::WindowType_Mask));
 886
 887     switch (type) {
 888     case Qt::Dialog:
 889     case Qt::Sheet:
 890         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_DIALOG));
 891         break;
 892     case Qt::Tool:
 893     case Qt::Drawer:
 894         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_UTILITY));
 895         break;
 896     case Qt::ToolTip:
 897         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_TOOLTIP));
 898         break;
 899     case Qt::SplashScreen:
 900         windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_SPLASH));
 901         break;
 902     default:
 903         break;
 904     }
 905
 906     if (flags & Qt::FramelessWindowHint)
 907         windowTypes.append(atom(QXcbAtom::_KDE_NET_WM_WINDOW_TYPE_OVERRIDE));
 908
 909     windowTypes.append(atom(QXcbAtom::_NET_WM_WINDOW_TYPE_NORMAL));
 910
 911     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
 912                                    atom(QXcbAtom::_NET_WM_WINDOW_TYPE), XCB_ATOM_ATOM, 32,
 913                                    windowTypes.count(), windowTypes.constData()));
 914 }
 915
 916 void QXcbWindow::updateMotifWmHintsBeforeMap()
 917 {
 918     QtMotifWmHints mwmhints = getMotifWmHints(connection(), m_window);
 919
 920     if (window()->windowModality() != Qt::NonModal) {
 921         switch (window()->windowModality()) {
 922         case Qt::WindowModal:
 923             mwmhints.input_mode = MWM_INPUT_PRIMARY_APPLICATION_MODAL;
 924             break;
 925         case Qt::ApplicationModal:
 926         default:
 927             mwmhints.input_mode = MWM_INPUT_FULL_APPLICATION_MODAL;
 928             break;
 929         }
 930         mwmhints.flags |= MWM_HINTS_INPUT_MODE;
 931     } else {
 932         mwmhints.input_mode = MWM_INPUT_MODELESS;
 933         mwmhints.flags &= ~MWM_HINTS_INPUT_MODE;
 934     }
 935
 936     if (window()->minimumSize() == window()->maximumSize()) {
 937         // fixed size, remove the resize handle (since mwm/dtwm
 938         // isn't smart enough to do it itself)
 939         mwmhints.flags |= MWM_HINTS_FUNCTIONS;
 940         if (mwmhints.functions == MWM_FUNC_ALL) {
 941             mwmhints.functions = MWM_FUNC_MOVE;
 942         } else {
 943             mwmhints.functions &= ~MWM_FUNC_RESIZE;
 944         }
 945
 946         if (mwmhints.decorations == MWM_DECOR_ALL) {
 947             mwmhints.flags |= MWM_HINTS_DECORATIONS;
 948             mwmhints.decorations = (MWM_DECOR_BORDER
 949                                     | MWM_DECOR_TITLE
 950                                     | MWM_DECOR_MENU);
 951         } else {
 952             mwmhints.decorations &= ~MWM_DECOR_RESIZEH;
 953         }
 954     }
 955
 956     if (window()->windowFlags() & Qt::WindowMinimizeButtonHint) {
 957         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 958         mwmhints.decorations |= MWM_DECOR_MINIMIZE;
 959         mwmhints.functions |= MWM_FUNC_MINIMIZE;
 960     }
 961     if (window()->windowFlags() & Qt::WindowMaximizeButtonHint) {
 962         mwmhints.flags |= MWM_HINTS_DECORATIONS;
 963         mwmhints.decorations |= MWM_DECOR_MAXIMIZE;
 964         mwmhints.functions |= MWM_FUNC_MAXIMIZE;
 965     }
 966     if (window()->windowFlags() & Qt::WindowCloseButtonHint)
 967         mwmhints.functions |= MWM_FUNC_CLOSE;
 968
 969     setMotifWmHints(connection(), m_window, mwmhints);
 970 }
 971
 972 void QXcbWindow::updateNetWmStateBeforeMap()
 973 {
 974     QVector<xcb_atom_t> netWmState;
 975
 976     Qt::WindowFlags flags = window()->windowFlags();
 977     if (flags & Qt::WindowStaysOnTopHint) {
 978         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_ABOVE));
 979         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_STAYS_ON_TOP));
 980     } else if (flags & Qt::WindowStaysOnBottomHint) {
 981         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_BELOW));
 982     }
 983
 984     if (window()->windowState() & Qt::WindowFullScreen) {
 985         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
 986     }
 987
 988     if (window()->windowState() & Qt::WindowMaximized) {
 989         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ));
 990         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
 991     }
 992
 993     if (window()->windowModality() != Qt::NonModal) {
 994         netWmState.append(atom(QXcbAtom::_NET_WM_STATE_MODAL));
 995     }
 996
 997     setNetWmState(netWmState);
 998 }
 999
1000 void QXcbWindow::updateNetWmUserTime(xcb_timestamp_t timestamp)
1001 {
1002     xcb_window_t wid = m_window;
1003
1004     const bool isSupportedByWM = connection()->wmSupport()->isSupportedByWM(atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
1005     if (m_netWmUserTimeWindow || isSupportedByWM) {
1006         if (!m_netWmUserTimeWindow) {
1007             m_netWmUserTimeWindow = xcb_generate_id(xcb_connection());
1008             Q_XCB_CALL(xcb_create_window(xcb_connection(),
1009                                          XCB_COPY_FROM_PARENT,            // depth -- same as root
1010                                          m_netWmUserTimeWindow,                        // window id
1011                                          m_window,                   // parent window id
1012                                          -1, -1, 1, 1,
1013                                          0,                               // border width
1014                                          XCB_WINDOW_CLASS_INPUT_OUTPUT,   // window class
1015                                          m_visualId,                      // visual
1016                                          0,                               // value mask
1017                                          0));                             // value list
1018             wid = m_netWmUserTimeWindow;
1019             xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW),
1020                                 XCB_ATOM_WINDOW, 32, 1, &m_netWmUserTimeWindow);
1021             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME));
1022         } else if (!isSupportedByWM) {
1023             // WM no longer supports it, then we should remove the
1024             // _NET_WM_USER_TIME_WINDOW atom.
1025             xcb_delete_property(xcb_connection(), m_window, atom(QXcbAtom::_NET_WM_USER_TIME_WINDOW));
1026             xcb_destroy_window(xcb_connection(), m_netWmUserTimeWindow);
1027             m_netWmUserTimeWindow = XCB_NONE;
1028         } else {
1029             wid = m_netWmUserTimeWindow;
1030         }
1031     }
1032     xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, wid, atom(QXcbAtom::_NET_WM_USER_TIME),
1033                         XCB_ATOM_CARDINAL, 32, 1, &timestamp);
1034 }
1035
1036 void QXcbWindow::setTransparentForMouseEvents(bool transparent)
1037 {
1038     if (transparent == m_transparent)
1039         return;
1040
1041     xcb_rectangle_t rectangle;
1042
1043     xcb_rectangle_t *rect = 0;
1044     int nrect = 0;
1045
1046     if (!transparent) {
1047         rectangle.x = 0;
1048         rectangle.y = 0;
1049         rectangle.width = geometry().width();
1050         rectangle.height = geometry().height();
1051         rect = &rectangle;
1052         nrect = 1;
1053     }
1054
1055     xcb_xfixes_region_t region = xcb_generate_id(xcb_connection());
1056     xcb_xfixes_create_region(xcb_connection(), region, nrect, rect);
1057     xcb_xfixes_set_window_shape_region_checked(xcb_connection(), m_window, XCB_SHAPE_SK_INPUT, 0, 0, region);
1058     xcb_xfixes_destroy_region(xcb_connection(), region);
1059
1060     m_transparent = transparent;
1061 }
1062
1063
1064 WId QXcbWindow::winId() const
1065 {
1066     return m_window;
1067 }
1068
1069 void QXcbWindow::setParent(const QPlatformWindow *parent)
1070 {
1071     // re-create for compatibility
1072     create();
1073
1074     QPoint topLeft = geometry().topLeft();
1075
1076     xcb_window_t xcb_parent_id = parent ? static_cast<const QXcbWindow *>(parent)->xcb_window() : m_screen->root();
1077     Q_XCB_CALL(xcb_reparent_window(xcb_connection(), xcb_window(), xcb_parent_id, topLeft.x(), topLeft.y()));
1078 }
1079
1080 void QXcbWindow::setWindowTitle(const QString &title)
1081 {
1082     QByteArray ba = title.toUtf8();
1083     Q_XCB_CALL(xcb_change_property(xcb_connection(),
1084                                    XCB_PROP_MODE_REPLACE,
1085                                    m_window,
1086                                    atom(QXcbAtom::_NET_WM_NAME),
1087                                    atom(QXcbAtom::UTF8_STRING),
1088                                    8,
1089                                    ba.length(),
1090                                    ba.constData()));
1091 }
1092
1093 void QXcbWindow::raise()
1094 {
1095     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1096     const quint32 values[] = { XCB_STACK_MODE_ABOVE };
1097     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1098 }
1099
1100 void QXcbWindow::lower()
1101 {
1102     const quint32 mask = XCB_CONFIG_WINDOW_STACK_MODE;
1103     const quint32 values[] = { XCB_STACK_MODE_BELOW };
1104     Q_XCB_CALL(xcb_configure_window(xcb_connection(), m_window, mask, values));
1105 }
1106
1107 void QXcbWindow::propagateSizeHints()
1108 {
1109     // update WM_NORMAL_HINTS
1110     xcb_size_hints_t hints;
1111     memset(&hints, 0, sizeof(hints));
1112
1113     QRect rect = geometry();
1114
1115     QWindow *win = window();
1116
1117     xcb_size_hints_set_position(&hints, true, rect.x(), rect.y());
1118     xcb_size_hints_set_size(&hints, true, rect.width(), rect.height());
1119     xcb_size_hints_set_win_gravity(&hints, qt_window_private(win)->positionPolicy == QWindowPrivate::WindowFrameInclusive
1120                                            ? XCB_GRAVITY_NORTH_WEST : XCB_GRAVITY_STATIC);
1121
1122     QSize minimumSize = win->minimumSize();
1123     QSize maximumSize = win->maximumSize();
1124     QSize baseSize = win->baseSize();
1125     QSize sizeIncrement = win->sizeIncrement();
1126
1127     if (minimumSize.width() > 0 || minimumSize.height() > 0)
1128         xcb_size_hints_set_min_size(&hints, minimumSize.width(), minimumSize.height());
1129
1130     if (maximumSize.width() < QWINDOWSIZE_MAX || maximumSize.height() < QWINDOWSIZE_MAX)
1131         xcb_size_hints_set_max_size(&hints,
1132                                     qMin(XCOORD_MAX, maximumSize.width()),
1133                                     qMin(XCOORD_MAX, maximumSize.height()));
1134
1135     if (sizeIncrement.width() > 0 || sizeIncrement.height() > 0) {
1136         xcb_size_hints_set_base_size(&hints, baseSize.width(), baseSize.height());
1137         xcb_size_hints_set_resize_inc(&hints, sizeIncrement.width(), sizeIncrement.height());
1138     }
1139
1140     xcb_set_wm_normal_hints(xcb_connection(), m_window, &hints);
1141 }
1142
1143 void QXcbWindow::requestActivateWindow()
1144 {
1145     if (m_mapped){
1146         updateNetWmUserTime(connection()->time());
1147         Q_XCB_CALL(xcb_set_input_focus(xcb_connection(), XCB_INPUT_FOCUS_PARENT, m_window, connection()->time()));
1148     }
1149     connection()->sync();
1150 }
1151
1152 #if XCB_USE_MAEMO_WINDOW_PROPERTIES
1153 void QXcbWindow::setOrientation(Qt::ScreenOrientation orientation)
1154 {
1155     int angle = 0;
1156     switch (orientation) {
1157         case Qt::PortraitOrientation: angle = 270; break;
1158         case Qt::LandscapeOrientation: angle = 0; break;
1159         case Qt::InvertedPortraitOrientation: angle = 90; break;
1160         case Qt::InvertedLandscapeOrientation: angle = 180; break;
1161         case Qt::PrimaryOrientation: break;
1162     }
1163     Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window,
1164                                    atom(QXcbAtom::MeegoTouchOrientationAngle), XCB_ATOM_CARDINAL, 32,
1165                                    1, &angle));
1166 }
1167 #endif
1168
1169 QSurfaceFormat QXcbWindow::format() const
1170 {
1171     // ### return actual format
1172     return m_format;
1173 }
1174
1175 #if defined(XCB_USE_EGL)
1176 QXcbEGLSurface *QXcbWindow::eglSurface() const
1177 {
1178     if (!m_eglSurface) {
1179         EGLDisplay display = connection()->egl_display();
1180         EGLConfig config = q_configFromGLFormat(display, window()->format(), true);
1181         EGLSurface surface = eglCreateWindowSurface(display, config, (EGLNativeWindowType)m_window, 0);
1182
1183         m_eglSurface = new QXcbEGLSurface(display, surface);
1184     }
1185
1186     return m_eglSurface;
1187 }
1188 #endif
1189
1190 void QXcbWindow::handleExposeEvent(const xcb_expose_event_t *event)
1191 {
1192     QRect rect(event->x, event->y, event->width, event->height);
1193
1194     if (m_exposeRegion.isEmpty())
1195         m_exposeRegion = rect;
1196     else
1197         m_exposeRegion |= rect;
1198
1199     // if count is non-zero there are more expose events pending
1200     if (event->count == 0) {
1201         QWindowSystemInterface::handleSynchronousExposeEvent(window(), m_exposeRegion);
1202         m_exposeRegion = QRegion();
1203     }
1204 }
1205
1206 void QXcbWindow::handleClientMessageEvent(const xcb_client_message_event_t *event)
1207 {
1208     if (event->format != 32)
1209         return;
1210
1211     if (event->type == atom(QXcbAtom::WM_PROTOCOLS)) {
1212         if (event->data.data32[0] == atom(QXcbAtom::WM_DELETE_WINDOW)) {
1213             QWindowSystemInterface::handleCloseEvent(window());
1214         } else if (event->data.data32[0] == atom(QXcbAtom::WM_TAKE_FOCUS)) {
1215             connection()->setTime(event->data.data32[1]);
1216         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_PING)) {
1217             xcb_client_message_event_t reply = *event;
1218
1219             reply.response_type = XCB_CLIENT_MESSAGE;
1220             reply.window = m_screen->root();
1221
1222             xcb_send_event(xcb_connection(), 0, m_screen->root(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *)&reply);
1223             xcb_flush(xcb_connection());
1224         } else if (event->data.data32[0] == atom(QXcbAtom::_NET_WM_SYNC_REQUEST)) {
1225             connection()->setTime(event->data.data32[1]);
1226             m_syncValue.lo = event->data.data32[2];
1227             m_syncValue.hi = event->data.data32[3];
1228         } else {
1229             qWarning() << "unhandled WM_PROTOCOLS message:" << connection()->atomName(event->data.data32[0]);
1230         }
1231     } else if (event->type == atom(QXcbAtom::XdndEnter)) {
1232         connection()->drag()->handleEnter(window(), event);
1233     } else if (event->type == atom(QXcbAtom::XdndPosition)) {
1234         connection()->drag()->handlePosition(window(), event, false);
1235     } else if (event->type == atom(QXcbAtom::XdndLeave)) {
1236         connection()->drag()->handleLeave(window(), event, false);
1237     } else if (event->type == atom(QXcbAtom::XdndDrop)) {
1238         connection()->drag()->handleDrop(window(), event, false);
1239     } else {
1240         qWarning() << "unhandled client message:" << connection()->atomName(event->type);
1241     }
1242 }
1243
1244 void QXcbWindow::handleConfigureNotifyEvent(const xcb_configure_notify_event_t *event)
1245 {
1246     bool fromSendEvent = (event->response_type & 0x80);
1247     QPoint pos(event->x, event->y);
1248     if (!fromSendEvent) {
1249         // Do not trust the position, query it instead.
1250         xcb_translate_coordinates_cookie_t cookie = xcb_translate_coordinates(xcb_connection(), xcb_window(),
1251                                                                               m_screen->root(), 0, 0);
1252         xcb_generic_error_t *error;
1253         xcb_translate_coordinates_reply_t *reply = xcb_translate_coordinates_reply(xcb_connection(), cookie, &error);
1254         if (reply) {
1255             pos.setX(reply->dst_x);
1256             pos.setY(reply->dst_y);
1257             free(reply);
1258         } else if (error) {
1259             free(error);
1260         }
1261     }
1262
1263     QRect rect(pos, QSize(event->width, event->height));
1264
1265     QPlatformWindow::setGeometry(rect);
1266     QWindowSystemInterface::handleGeometryChange(window(), rect);
1267
1268     m_dirtyFrameMargins = true;
1269
1270 #if XCB_USE_DRI2
1271     if (m_context)
1272         static_cast<QDri2Context *>(m_context)->resize(rect.size());
1273 #endif
1274 }
1275
1276 void QXcbWindow::handleMapNotifyEvent(const xcb_map_notify_event_t *event)
1277 {
1278     if (event->window == m_window) {
1279         m_mapped = true;
1280         QWindowSystemInterface::handleMapEvent(window());
1281     }
1282 }
1283
1284 void QXcbWindow::handleUnmapNotifyEvent(const xcb_unmap_notify_event_t *event)
1285 {
1286     if (event->window == m_window) {
1287         m_mapped = false;
1288         QWindowSystemInterface::handleUnmapEvent(window());
1289     }
1290 }
1291
1292 static Qt::MouseButtons translateMouseButtons(int s)
1293 {
1294     Qt::MouseButtons ret = 0;
1295     if (s & XCB_BUTTON_MASK_1)
1296         ret |= Qt::LeftButton;
1297     if (s & XCB_BUTTON_MASK_2)
1298         ret |= Qt::MidButton;
1299     if (s & XCB_BUTTON_MASK_3)
1300         ret |= Qt::RightButton;
1301     return ret;
1302 }
1303
1304 static Qt::MouseButton translateMouseButton(xcb_button_t s)
1305 {
1306     switch (s) {
1307     case 1: return Qt::LeftButton;
1308     case 2: return Qt::MidButton;
1309     case 3: return Qt::RightButton;
1310     // Button values 4-7 were already handled as Wheel events, and won't occur here.
1311     case 8: return Qt::BackButton;      // Also known as Qt::ExtraButton1
1312     case 9: return Qt::ForwardButton;   // Also known as Qt::ExtraButton2
1313     case 10: return Qt::ExtraButton3;
1314     case 11: return Qt::ExtraButton4;
1315     case 12: return Qt::ExtraButton5;
1316     case 13: return Qt::ExtraButton6;
1317     case 14: return Qt::ExtraButton7;
1318     case 15: return Qt::ExtraButton8;
1319     case 16: return Qt::ExtraButton9;
1320     case 17: return Qt::ExtraButton10;
1321     case 18: return Qt::ExtraButton11;
1322     case 19: return Qt::ExtraButton12;
1323     case 20: return Qt::ExtraButton13;
1324     case 21: return Qt::ExtraButton14;
1325     case 22: return Qt::ExtraButton15;
1326     case 23: return Qt::ExtraButton16;
1327     case 24: return Qt::ExtraButton17;
1328     case 25: return Qt::ExtraButton18;
1329     case 26: return Qt::ExtraButton19;
1330     case 27: return Qt::ExtraButton20;
1331     case 28: return Qt::ExtraButton21;
1332     case 29: return Qt::ExtraButton22;
1333     case 30: return Qt::ExtraButton23;
1334     case 31: return Qt::ExtraButton24;
1335     default: return Qt::NoButton;
1336     }
1337 }
1338
1339 void QXcbWindow::handleButtonPressEvent(const xcb_button_press_event_t *event)
1340 {
1341     updateNetWmUserTime(event->time);
1342
1343     QPoint local(event->event_x, event->event_y);
1344     QPoint global(event->root_x, event->root_y);
1345
1346     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1347
1348     if (event->detail >= 4 && event->detail <= 7) {
1349         // Logic borrowed from qapplication_x11.cpp
1350         int delta = 120 * ((event->detail == 4 || event->detail == 6) ? 1 : -1);
1351         bool hor = (((event->detail == 4 || event->detail == 5)
1352                      && (modifiers & Qt::AltModifier))
1353                     || (event->detail == 6 || event->detail == 7));
1354
1355         QWindowSystemInterface::handleWheelEvent(window(), event->time,
1356                                                  local, global, delta, hor ? Qt::Horizontal : Qt::Vertical, modifiers);
1357         return;
1358     }
1359
1360     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1361 }
1362
1363 void QXcbWindow::handleButtonReleaseEvent(const xcb_button_release_event_t *event)
1364 {
1365     QPoint local(event->event_x, event->event_y);
1366     QPoint global(event->root_x, event->root_y);
1367     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1368
1369     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1370 }
1371
1372 void QXcbWindow::handleMotionNotifyEvent(const xcb_motion_notify_event_t *event)
1373 {
1374     QPoint local(event->event_x, event->event_y);
1375     QPoint global(event->root_x, event->root_y);
1376     Qt::KeyboardModifiers modifiers = connection()->keyboard()->translateModifiers(event->state);
1377
1378     handleMouseEvent(event->detail, event->state, event->time, local, global, modifiers);
1379 }
1380
1381 void QXcbWindow::handleMouseEvent(xcb_button_t detail, uint16_t state, xcb_timestamp_t time, const QPoint &local, const QPoint &global, Qt::KeyboardModifiers modifiers)
1382 {
1383     connection()->setTime(time);
1384
1385     Qt::MouseButtons buttons = translateMouseButtons(state);
1386     Qt::MouseButton button = translateMouseButton(detail);
1387
1388     buttons ^= button; // X event uses state *before*, Qt uses state *after*
1389
1390     QWindowSystemInterface::handleMouseEvent(window(), time, local, global, buttons, modifiers);
1391 }
1392
1393 void QXcbWindow::handleEnterNotifyEvent(const xcb_enter_notify_event_t *event)
1394 {
1395     connection()->setTime(event->time);
1396
1397     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1398         || event->detail == XCB_NOTIFY_DETAIL_VIRTUAL
1399         || event->detail == XCB_NOTIFY_DETAIL_NONLINEAR_VIRTUAL)
1400     {
1401         return;
1402     }
1403
1404     QWindowSystemInterface::handleEnterEvent(window());
1405 }
1406
1407 void QXcbWindow::handleLeaveNotifyEvent(const xcb_leave_notify_event_t *event)
1408 {
1409     connection()->setTime(event->time);
1410
1411     if ((event->mode != XCB_NOTIFY_MODE_NORMAL && event->mode != XCB_NOTIFY_MODE_UNGRAB)
1412         || event->detail == XCB_NOTIFY_DETAIL_INFERIOR)
1413     {
1414         return;
1415     }
1416
1417     QWindowSystemInterface::handleLeaveEvent(window());
1418 }
1419
1420 void QXcbWindow::handlePropertyNotifyEvent(const xcb_property_notify_event_t *event)
1421 {
1422     connection()->setTime(event->time);
1423
1424     bool propertyDeleted = event->state == XCB_PROPERTY_DELETE;
1425
1426     if (event->atom == atom(QXcbAtom::_NET_WM_STATE) || event->atom == atom(QXcbAtom::WM_STATE)) {
1427         if (propertyDeleted)
1428             return;
1429
1430         xcb_get_property_cookie_t get_cookie =
1431             xcb_get_property(xcb_connection(), 0, m_window, atom(QXcbAtom::WM_STATE),
1432                              XCB_ATOM_ANY, 0, 1024);
1433
1434         xcb_generic_error_t *error;
1435
1436         xcb_get_property_reply_t *reply =
1437             xcb_get_property_reply(xcb_connection(), get_cookie, &error);
1438
1439         xcb_atom_t wm_state = XCB_WM_STATE_WITHDRAWN;
1440         if (reply && reply->format == 32 && reply->type == atom(QXcbAtom::WM_STATE)) {
1441             if (reply->length != 0)
1442                 wm_state = ((long *)xcb_get_property_value(reply))[0];
1443             free(reply);
1444         } else if (error) {
1445             connection()->handleXcbError(error);
1446             free(error);
1447         }
1448
1449         QVector<xcb_atom_t> netWmState = getNetWmState();
1450
1451         bool maximized = netWmState.contains(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_HORZ))
1452             && netWmState.contains(atom(QXcbAtom::_NET_WM_STATE_MAXIMIZED_VERT));
1453         bool fullscreen = netWmState.contains(atom(QXcbAtom::_NET_WM_STATE_FULLSCREEN));
1454
1455         Qt::WindowState state = Qt::WindowNoState;
1456         if (wm_state == XCB_WM_STATE_ICONIC)
1457             state = Qt::WindowMinimized;
1458         else if (maximized)
1459             state = Qt::WindowMaximized;
1460         else if (fullscreen)
1461             state = Qt::WindowFullScreen;
1462
1463         QWindowSystemInterface::handleWindowStateChanged(window(), state);
1464     }
1465 }
1466
1467 void QXcbWindow::handleFocusInEvent(const xcb_focus_in_event_t *)
1468 {
1469     QWindowSystemInterface::handleWindowActivated(window());
1470 }
1471
1472 static bool focusInPeeker(xcb_generic_event_t *event)
1473 {
1474     if (!event) {
1475         // FocusIn event is not in the queue, proceed with FocusOut normally.
1476         QWindowSystemInterface::handleWindowActivated(0);
1477         return true;
1478     }
1479     uint response_type = event->response_type & ~0x80;
1480     return response_type == XCB_FOCUS_IN;
1481 }
1482
1483 void QXcbWindow::handleFocusOutEvent(const xcb_focus_out_event_t *)
1484 {
1485     // Do not set the active window to 0 if there is a FocusIn coming.
1486     // There is however no equivalent for XPutBackEvent so register a
1487     // callback for QXcbConnection instead.
1488     connection()->addPeekFunc(focusInPeeker);
1489 }
1490
1491 void QXcbWindow::updateSyncRequestCounter()
1492 {
1493     if (m_screen->syncRequestSupported() && (m_syncValue.lo != 0 || m_syncValue.hi != 0)) {
1494         Q_XCB_CALL(xcb_sync_set_counter(xcb_connection(), m_syncCounter, m_syncValue));
1495         xcb_flush(xcb_connection());
1496         connection()->sync();
1497
1498         m_syncValue.lo = 0;
1499         m_syncValue.hi = 0;
1500     }
1501 }
1502
1503 bool QXcbWindow::setKeyboardGrabEnabled(bool grab)
1504 {
1505     if (!grab) {
1506         xcb_ungrab_keyboard(xcb_connection(), XCB_TIME_CURRENT_TIME);
1507         return true;
1508     }
1509     xcb_grab_keyboard_cookie_t cookie = xcb_grab_keyboard(xcb_connection(), false,
1510                                                           m_window, XCB_TIME_CURRENT_TIME,
1511                                                           XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
1512     xcb_generic_error_t *err;
1513     xcb_grab_keyboard_reply_t *reply = xcb_grab_keyboard_reply(xcb_connection(), cookie, &err);
1514     bool result = !(err || !reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1515     free(reply);
1516     free(err);
1517     return result;
1518 }
1519
1520 bool QXcbWindow::setMouseGrabEnabled(bool grab)
1521 {
1522     if (!grab) {
1523         xcb_ungrab_pointer(xcb_connection(), XCB_TIME_CURRENT_TIME);
1524         return true;
1525     }
1526     xcb_grab_pointer_cookie_t cookie = xcb_grab_pointer(xcb_connection(), false, m_window,
1527                                                         (XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE
1528                                                          | XCB_EVENT_MASK_BUTTON_MOTION | XCB_EVENT_MASK_ENTER_WINDOW
1529                                                          | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_POINTER_MOTION),
1530                                                         XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC,
1531                                                         XCB_WINDOW_NONE, XCB_CURSOR_NONE,
1532                                                         XCB_TIME_CURRENT_TIME);
1533     xcb_generic_error_t *err;
1534     xcb_grab_pointer_reply_t *reply = xcb_grab_pointer_reply(xcb_connection(), cookie, &err);
1535     bool result = !(err || !reply || reply->status != XCB_GRAB_STATUS_SUCCESS);
1536     free(reply);
1537     free(err);
1538     return result;
1539 }
1540
1541 void QXcbWindow::setCursor(xcb_cursor_t cursor)
1542 {
1543     xcb_change_window_attributes(xcb_connection(), m_window, XCB_CW_CURSOR, &cursor);
1544     xcb_flush(xcb_connection());
1545 }
1546
1547 QT_END_NAMESPACE