src/plugins/platforms/wayland/qwaylandwindow.cpp

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  41
  42 #include "qwaylandwindow.h"
  43
  44 #include "qwaylandbuffer.h"
  45 #include "qwaylanddisplay.h"
  46 #include "qwaylandinputdevice.h"
  47 #include "qwaylandscreen.h"
  48 #include "qwaylandshell.h"
  49 #include "qwaylandshellsurface.h"
  50 #include "qwaylandextendedsurface.h"
  51 #include "qwaylandsubsurface.h"
  52 #include "qwaylanddecoration.h"
  53
  54 #include <QtGui/QWindow>
  55
  56 #ifdef QT_WAYLAND_WINDOWMANAGER_SUPPORT
  57 #include "windowmanager_integration/qwaylandwindowmanagerintegration.h"
  58 #endif
  59
  60 #include <QCoreApplication>
  61 #include <qpa/qwindowsysteminterface.h>
  62
  63 #include <QtCore/QDebug>
  64
  65 QWaylandWindow::QWaylandWindow(QWindow *window)
  66     : QPlatformWindow(window)
  67     , mDisplay(QWaylandScreen::waylandScreenFromWindow(window)->display())
  68     , mSurface(mDisplay->createSurface(this))
  69     , mShellSurface(0)
  70     , mExtendedWindow(0)
  71     , mSubSurfaceWindow(0)
  72     , mWindowDecoration(0)
  73     , mMouseEventsInContentArea(false)
  74     , mMousePressedInContentArea(Qt::NoButton)
  75     , mBuffer(0)
  76     , mWaitingForFrameSync(false)
  77     , mFrameCallback(0)
  78     , mSentInitialResize(false)
  79 {
  80     static WId id = 1;
  81     mWindowId = id++;
  82
  83     if (mDisplay->shell())
  84         mShellSurface = mDisplay->shell()->getShellSurface(this);
  85     if (mDisplay->windowExtension())
  86         mExtendedWindow = mDisplay->windowExtension()->getExtendedWindow(this);
  87     if (mDisplay->subSurfaceExtension())
  88         mSubSurfaceWindow = mDisplay->subSurfaceExtension()->getSubSurfaceAwareWindow(this);
  89
  90 #ifdef QT_WAYLAND_WINDOWMANAGER_SUPPORT
  91     mDisplay->windowManagerIntegration()->mapClientToProcess(qApp->applicationPid());
  92     mDisplay->windowManagerIntegration()->authenticateWithToken();
  93 #endif
  94
  95     if (parent() && mSubSurfaceWindow) {
  96         mSubSurfaceWindow->setParent(static_cast<const QWaylandWindow *>(parent()));
  97     } else if (window->transientParent()) {
  98         if (window->transientParent()) {
  99             mShellSurface->updateTransientParent(window->transientParent());
 100         }
 101     } else {
 102         mShellSurface->setTopLevel();
 103     }
 104
 105     setWindowFlags(window->windowFlags());
 106 }
 107
 108 QWaylandWindow::~QWaylandWindow()
 109 {
 110     if (mSurface) {
 111         delete mShellSurface;
 112         delete mExtendedWindow;
 113         wl_surface_destroy(mSurface);
 114     }
 115
 116     QList<QWaylandInputDevice *> inputDevices = mDisplay->inputDevices();
 117     for (int i = 0; i < inputDevices.size(); ++i)
 118         inputDevices.at(i)->handleWindowDestroyed(this);
 119 }
 120
 121 WId QWaylandWindow::winId() const
 122 {
 123     return mWindowId;
 124 }
 125
 126 void QWaylandWindow::setParent(const QPlatformWindow *parent)
 127 {
 128     const QWaylandWindow *parentWaylandWindow = static_cast<const QWaylandWindow *>(parent);
 129     if (subSurfaceWindow()) {
 130         subSurfaceWindow()->setParent(parentWaylandWindow);
 131     }
 132 }
 133
 134 void QWaylandWindow::setWindowTitle(const QString &title)
 135 {
 136     if (mShellSurface) {
 137         QByteArray titleUtf8 = title.toUtf8();
 138         mShellSurface->setTitle(titleUtf8.constData());
 139     }
 140     if (mWindowDecoration && window()->isVisible()) {
 141         mWindowDecoration->paintDecoration();
 142     }
 143 }
 144
 145 void QWaylandWindow::setGeometry(const QRect &rect)
 146 {
 147     QPlatformWindow::setGeometry(rect);
 148
 149     if (shellSurface() && window()->transientParent())
 150         shellSurface()->updateTransientParent(window()->transientParent());
 151 }
 152
 153 void QWaylandWindow::setVisible(bool visible)
 154 {
 155
 156     if (visible) {
 157         if (mBuffer)
 158             wl_surface_attach(mSurface, mBuffer->buffer(), 0, 0);
 159
 160         if (!mSentInitialResize) {
 161             QWindowSystemInterface::handleGeometryChange(window(), geometry());
 162             QWindowSystemInterface::flushWindowSystemEvents();
 163             mSentInitialResize = true;
 164         }
 165
 166         QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
 167         QWindowSystemInterface::flushWindowSystemEvents();
 168     } else {
 169         QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
 170         QWindowSystemInterface::flushWindowSystemEvents();
 171         wl_surface_attach(mSurface, 0,0,0);
 172         damage(QRect(QPoint(0,0),geometry().size()));
 173     }
 174 }
 175
 176
 177 bool QWaylandWindow::isExposed() const
 178 {
 179     if (!window()->isVisible())
 180         return false;
 181     if (mExtendedWindow)
 182         return mExtendedWindow->isExposed();
 183     return true;
 184 }
 185
 186
 187 void QWaylandWindow::configure(uint32_t edges, int32_t width, int32_t height)
 188 {
 189     Q_UNUSED(edges);
 190
 191     int widthWithoutMargins = qMax(width-(frameMargins().left() +frameMargins().right()),1);
 192     int heightWithoutMargins = qMax(height-(frameMargins().top()+frameMargins().bottom()),1);
 193
 194     widthWithoutMargins = qMax(widthWithoutMargins, window()->minimumSize().width());
 195     heightWithoutMargins = qMax(heightWithoutMargins, window()->minimumSize().height());
 196     QRect geometry = QRect(0,0,
 197                            widthWithoutMargins, heightWithoutMargins);
 198     setGeometry(geometry);
 199     QWindowSystemInterface::handleGeometryChange(window(), geometry);
 200 }
 201
 202 void QWaylandWindow::attach(QWaylandBuffer *buffer)
 203 {
 204     mBuffer = buffer;
 205
 206     if (window()->isVisible()) {
 207         wl_surface_attach(mSurface, mBuffer->buffer(),0,0);
 208     }
 209 }
 210
 211 QWaylandBuffer *QWaylandWindow::attached() const
 212 {
 213     return mBuffer;
 214 }
 215
 216 void QWaylandWindow::damage(const QRect &rect)
 217 {
 218     //We have to do sync stuff before calling damage, or we might
 219     //get a frame callback before we get the timestamp
 220     if (!mWaitingForFrameSync) {
 221         mFrameCallback = wl_surface_frame(mSurface);
 222         wl_callback_add_listener(mFrameCallback,&QWaylandWindow::callbackListener,this);
 223         mWaitingForFrameSync = true;
 224     }
 225
 226     wl_surface_damage(mSurface,
 227                       rect.x(), rect.y(), rect.width(), rect.height());
 228 }
 229
 230 const wl_callback_listener QWaylandWindow::callbackListener = {
 231     QWaylandWindow::frameCallback
 232 };
 233
 234 void QWaylandWindow::frameCallback(void *data, struct wl_callback *callback, uint32_t time)
 235 {
 236     Q_UNUSED(time);
 237     QWaylandWindow *self = static_cast<QWaylandWindow*>(data);
 238     if (callback != self->mFrameCallback) // might be a callback caused by the shm backingstore
 239         return;
 240     self->mWaitingForFrameSync = false;
 241     if (self->mFrameCallback) {
 242         wl_callback_destroy(self->mFrameCallback);
 243         self->mFrameCallback = 0;
 244     }
 245 }
 246
 247 void QWaylandWindow::waitForFrameSync()
 248 {
 249     if (!mWaitingForFrameSync)
 250         return;
 251     mDisplay->flushRequests();
 252     while (mWaitingForFrameSync)
 253         mDisplay->blockingReadEvents();
 254 }
 255
 256 QMargins QWaylandWindow::frameMargins() const
 257 {
 258     if (mWindowDecoration)
 259         return mWindowDecoration->margins();
 260     return QPlatformWindow::frameMargins();
 261 }
 262
 263 QWaylandShellSurface *QWaylandWindow::shellSurface() const
 264 {
 265     return mShellSurface;
 266 }
 267
 268 QWaylandExtendedSurface *QWaylandWindow::extendedWindow() const
 269 {
 270     return mExtendedWindow;
 271 }
 272
 273 QWaylandSubSurface *QWaylandWindow::subSurfaceWindow() const
 274 {
 275     return mSubSurfaceWindow;
 276 }
 277
 278 void QWaylandWindow::handleContentOrientationChange(Qt::ScreenOrientation orientation)
 279 {
 280     if (mExtendedWindow)
 281         mExtendedWindow->setContentOrientation(orientation);
 282 }
 283
 284 Qt::ScreenOrientation QWaylandWindow::requestWindowOrientation(Qt::ScreenOrientation orientation)
 285 {
 286     if (mExtendedWindow) {
 287         mExtendedWindow->setWindowOrientation(orientation);
 288         return orientation;
 289     }
 290
 291     return Qt::PrimaryOrientation;
 292 }
 293
 294 Qt::WindowState QWaylandWindow::setWindowState(Qt::WindowState state)
 295 {
 296     if (state == Qt::WindowFullScreen || state == Qt::WindowMaximized) {
 297         QScreen *screen = window()->screen();
 298
 299         QRect geometry = screen->mapBetween(window()->windowOrientation(), screen->primaryOrientation(), screen->geometry());
 300         setGeometry(geometry);
 301
 302         QWindowSystemInterface::handleGeometryChange(window(), geometry);
 303
 304         return state;
 305     }
 306
 307     return Qt::WindowNoState;
 308 }
 309
 310 void QWaylandWindow::setWindowFlags(Qt::WindowFlags flags)
 311 {
 312     if (mExtendedWindow)
 313         mExtendedWindow->setWindowFlags(flags);
 314 }
 315
 316 QWaylandDecoration *QWaylandWindow::decoration() const
 317 {
 318     return mWindowDecoration;
 319 }
 320
 321 void QWaylandWindow::setDecoration(QWaylandDecoration *decoration)
 322 {
 323     mWindowDecoration = decoration;
 324     if (subSurfaceWindow()) {
 325         subSurfaceWindow()->adjustPositionOfChildren();
 326     }
 327 }
 328
 329 void QWaylandWindow::handleMouse(QWaylandInputDevice *inputDevice, ulong timestamp, const QPointF &local, const QPointF &global, Qt::MouseButtons b, Qt::KeyboardModifiers mods)
 330 {
 331     if (mWindowDecoration) {
 332         handleMouseEventWithDecoration(inputDevice, timestamp,local,global,b,mods);
 333         return;
 334     }
 335
 336     QWindowSystemInterface::handleMouseEvent(window(),timestamp,local,global,b,mods);
 337 }
 338
 339 void QWaylandWindow::handleMouseEnter()
 340 {
 341     if (!mWindowDecoration) {
 342         QWindowSystemInterface::handleEnterEvent(window());
 343     }
 344 }
 345
 346 void QWaylandWindow::handleMouseLeave()
 347 {
 348     if (mWindowDecoration) {
 349         if (mMouseEventsInContentArea) {
 350             QWindowSystemInterface::handleLeaveEvent(window());
 351         }
 352         mWindowDecoration->restoreMouseCursor();
 353     } else {
 354         QWindowSystemInterface::handleLeaveEvent(window());
 355     }
 356 }
 357
 358 void QWaylandWindow::handleMouseEventWithDecoration(QWaylandInputDevice *inputDevice, ulong timestamp, const QPointF &local, const QPointF &global, Qt::MouseButtons b, Qt::KeyboardModifiers mods)
 359 {
 360     if (mWindowDecoration->inMouseButtonPressedState()) {
 361         mWindowDecoration->handleMouse(inputDevice,local,global,b,mods);
 362         return;
 363     }
 364
 365     QMargins marg = frameMargins();
 366     QRect windowRect(0 + marg.left(),
 367                      0 + marg.top(),
 368                      geometry().size().width() - marg.right(),
 369                      geometry().size().height() - marg.bottom());
 370     if (windowRect.contains(local.toPoint()) || mMousePressedInContentArea != Qt::NoButton) {
 371         QPointF localTranslated = local;
 372         QPointF globalTranslated = global;
 373         localTranslated.setX(localTranslated.x() - marg.left());
 374         localTranslated.setY(localTranslated.y() - marg.top());
 375         globalTranslated.setX(globalTranslated.x() - marg.left());
 376         globalTranslated.setY(globalTranslated.y() - marg.top());
 377         if (!mMouseEventsInContentArea) {
 378             mWindowDecoration->restoreMouseCursor();
 379             QWindowSystemInterface::handleEnterEvent(window());
 380         }
 381         QWindowSystemInterface::handleMouseEvent(window(), timestamp, localTranslated, globalTranslated, b, mods);
 382         mMouseEventsInContentArea = true;
 383         mMousePressedInContentArea = b;
 384     } else {
 385         if (mMouseEventsInContentArea) {
 386             QWindowSystemInterface::handleLeaveEvent(window());
 387             mMouseEventsInContentArea = false;
 388         }
 389         mWindowDecoration->handleMouse(inputDevice,local,global,b,mods);
 390     }
 391 }