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Diffstat (limited to 'src/compositor/compositor_api/qwaylandquickitem.cpp')
| -rw-r--r-- | src/compositor/compositor_api/qwaylandquickitem.cpp | 775 |
1 files changed, 775 insertions, 0 deletions
diff --git a/src/compositor/compositor_api/qwaylandquickitem.cpp b/src/compositor/compositor_api/qwaylandquickitem.cpp new file mode 100644 index 000000000..f684f64c5 --- /dev/null +++ b/src/compositor/compositor_api/qwaylandquickitem.cpp @@ -0,0 +1,775 @@ +/**************************************************************************** +** +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the QtWaylandCompositor module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPLv3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or later as published by the Free +** Software Foundation and appearing in the file LICENSE.GPL included in +** the packaging of this file. Please review the following information to +** ensure the GNU General Public License version 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qwaylandquickitem.h" +#include "qwaylandquickitem_p.h" +#include "qwaylandquicksurface.h" +#include <QtWaylandCompositor/qwaylandcompositor.h> +#include <QtWaylandCompositor/qwaylandinput.h> +#include <QtWaylandCompositor/qwaylandbufferref.h> +#include <QtWaylandCompositor/private/qwlclientbufferintegration_p.h> + +#include <QtGui/QKeyEvent> +#include <QtGui/QGuiApplication> +#include <QtGui/QScreen> + +#include <QtQuick/QSGSimpleTextureNode> +#include <QtQuick/QQuickWindow> + +#include <QtCore/QMutexLocker> +#include <QtCore/QMutex> + +#include <wayland-server.h> +#include <QThread> +QT_BEGIN_NAMESPACE + +QMutex *QWaylandQuickItemPrivate::mutex = 0; + +class QWaylandSurfaceTextureProvider : public QSGTextureProvider +{ +public: + QWaylandSurfaceTextureProvider() + : m_smooth(false) + , m_sgTex(0) + { + } + + ~QWaylandSurfaceTextureProvider() + { + if (m_sgTex) + m_sgTex->deleteLater(); + } + + void setBufferRef(QWaylandQuickItem *surfaceItem, const QWaylandBufferRef &buffer) + { + Q_ASSERT(QThread::currentThread() == thread()); + m_ref = buffer; + delete m_sgTex; + m_sgTex = 0; + if (m_ref.hasBuffer()) { + if (buffer.isShm()) { + m_sgTex = surfaceItem->window()->createTextureFromImage(buffer.image()); + m_invertY = false; + if (m_sgTex) { + m_sgTex->bind(); + } + } else { + QQuickWindow::CreateTextureOptions opt = QQuickWindow::TextureOwnsGLTexture; + QWaylandQuickSurface *surface = qobject_cast<QWaylandQuickSurface *>(surfaceItem->surface()); + if (surface && surface->useTextureAlpha()) { + opt |= QQuickWindow::TextureHasAlphaChannel; + } + + GLuint texture; + glGenTextures(1, &texture); + glBindTexture(GL_TEXTURE_2D, texture); + buffer.bindToTexture(); + m_sgTex = surfaceItem->window()->createTextureFromId(texture , QSize(surfaceItem->width(), surfaceItem->height()), opt); + m_invertY = buffer.origin() == QWaylandSurface::OriginBottomLeft; + } + } + emit textureChanged(); + } + + QSGTexture *texture() const Q_DECL_OVERRIDE + { + if (m_sgTex) + m_sgTex->setFiltering(m_smooth ? QSGTexture::Linear : QSGTexture::Nearest); + return m_sgTex; + } + + void setSmooth(bool smooth) { m_smooth = smooth; } + bool invertY() const { return m_invertY; } +private: + bool m_smooth; + bool m_invertY; + QSGTexture *m_sgTex; + QWaylandBufferRef m_ref; +}; + +/*! + * \qmltype WaylandQuickItem + * \inqmlmodule QtWayland.Compositor + * \brief A Qt Quick item representing a WaylandView. + * + * When writing a WaylandCompositor in Qt Quick, this type can be used to display a + * client's contents on an output device and will pass user input to the + * client. + */ + +/*! + * \class QWaylandQuickItem + * \inmodule QtWaylandCompositor + * \brief A Qt Quick item representing a QWaylandView. + * + * When writing a QWaylandCompositor in Qt Quick, this class can be used to display a + * client's contents on an output device and will pass user input to the + * client. + */ + +/*! + * Constructs a QWaylandQuickItem with the given \a parent. + */ +QWaylandQuickItem::QWaylandQuickItem(QQuickItem *parent) + : QQuickItem(*new QWaylandQuickItemPrivate(), parent) +{ + d_func()->init(); +} + +/*! + * \internal + */ +QWaylandQuickItem::QWaylandQuickItem(QWaylandQuickItemPrivate &dd, QQuickItem *parent) + : QQuickItem(dd, parent) +{ + d_func()->init(); +} + +/*! + * Destroy the QWaylandQuickItem. + */ +QWaylandQuickItem::~QWaylandQuickItem() +{ + Q_D(QWaylandQuickItem); + disconnect(this, &QQuickItem::windowChanged, this, &QWaylandQuickItem::updateWindow); + QMutexLocker locker(d->mutex); + if (d->provider) + d->provider->deleteLater(); +} + +/*! + * \qmlproperty object QtWaylandCompositor::WaylandQuickItem::compositor + * + * This property holds the compositor for the surface rendered by this WaylandQuickItem. + */ + +/*! + * \property QWaylandQuickItem::compositor + * + * This property holds the compositor for the surface rendered by this QWaylandQuickItem. + */ +QWaylandCompositor *QWaylandQuickItem::compositor() const +{ + Q_D(const QWaylandQuickItem); + return d->view->surface() ? d->view->surface()->compositor() : Q_NULLPTR; +} + +/*! + * \qmlproperty object QWaylandQuickItem::view + * + * This property holds the view rendered by this WaylandQuickItem. + */ + +/*! + * \property QWaylandQuickItem::view + * + * This property holds the view rendered by this QWaylandQuickItem. + */ +QWaylandView *QWaylandQuickItem::view() const +{ + Q_D(const QWaylandQuickItem); + return d->view.data(); +} + +/*! + * \qmlproperty object QWaylandQuickItem::surface + * + * This property holds the surface rendered by this WaylandQuickItem. + */ + +/*! + * \property QWaylandQuickItem::surface + * + * This property holds the surface rendered by this QWaylandQuickItem. + */ + +QWaylandSurface *QWaylandQuickItem::surface() const +{ + Q_D(const QWaylandQuickItem); + return d->view->surface(); +} + +void QWaylandQuickItem::setSurface(QWaylandSurface *surface) +{ + Q_D(QWaylandQuickItem); + d->view->setSurface(surface); + update(); +} + +/*! + * \qmlproperty enum QtWaylandCompositor::WaylandQuickItem::origin + * + * This property holds the origin of the QWaylandQuickItem. + */ + +/*! + * \property QWaylandQuickItem::origin + * + * This property holds the origin of the QWaylandQuickItem. + */ +QWaylandSurface::Origin QWaylandQuickItem::origin() const +{ + Q_D(const QWaylandQuickItem); + return d->origin; +} + +/*! + * Returns the texture provider of this QWaylandQuickItem. + */ +QSGTextureProvider *QWaylandQuickItem::textureProvider() const +{ + Q_D(const QWaylandQuickItem); + return d->provider; +} + +/*! + * \internal + */ +void QWaylandQuickItem::mousePressEvent(QMouseEvent *event) +{ + Q_D(QWaylandQuickItem); + if (!d->shouldSendInputEvents()) { + event->ignore(); + return; + } + + if (!inputRegionContains(event->pos())) { + event->ignore(); + return; + } + + QWaylandInputDevice *inputDevice = compositor()->inputDeviceFor(event); + + if (d->focusOnClick) + takeFocus(inputDevice); + + inputDevice->sendMousePressEvent(event->button()); +} + +/*! + * \internal + */ +void QWaylandQuickItem::mouseMoveEvent(QMouseEvent *event) +{ + Q_D(QWaylandQuickItem); + if (d->shouldSendInputEvents()) { + QWaylandInputDevice *inputDevice = compositor()->inputDeviceFor(event); + inputDevice->sendMouseMoveEvent(d->view.data(), event->localPos(), event->windowPos()); + } else { + emit mouseMove(event->windowPos()); + event->ignore(); + } +} + +/*! + * \internal + */ +void QWaylandQuickItem::mouseReleaseEvent(QMouseEvent *event) +{ + Q_D(QWaylandQuickItem); + if (d->shouldSendInputEvents()) { + QWaylandInputDevice *inputDevice = compositor()->inputDeviceFor(event); + inputDevice->sendMouseReleaseEvent(event->button()); + } else { + emit mouseRelease(); + event->ignore(); + } +} + +/*! + * \internal + */ +void QWaylandQuickItem::hoverEnterEvent(QHoverEvent *event) +{ + Q_D(QWaylandQuickItem); + if (!inputRegionContains(event->pos())) { + event->ignore(); + return; + } + if (d->shouldSendInputEvents()) { + QWaylandInputDevice *inputDevice = compositor()->inputDeviceFor(event); + inputDevice->sendMouseMoveEvent(d->view.data(), event->pos(), mapToScene(event->pos())); + } else { + event->ignore(); + } +} + +/*! + * \internal + */ +void QWaylandQuickItem::hoverMoveEvent(QHoverEvent *event) +{ + Q_D(QWaylandQuickItem); + if (surface()) { + if (!inputRegionContains(event->pos())) { + event->ignore(); + return; + } + } + if (d->shouldSendInputEvents()) { + QWaylandInputDevice *inputDevice = compositor()->inputDeviceFor(event); + inputDevice->sendMouseMoveEvent(d->view.data(), event->pos(), mapToScene(event->pos())); + } else { + event->ignore(); + } +} + +/*! + * \internal + */ +void QWaylandQuickItem::hoverLeaveEvent(QHoverEvent *event) +{ + Q_D(QWaylandQuickItem); + if (d->shouldSendInputEvents()) { + QWaylandInputDevice *inputDevice = compositor()->inputDeviceFor(event); + inputDevice->setMouseFocus(Q_NULLPTR); + } else { + event->ignore(); + } +} + +/*! + * \internal + */ +void QWaylandQuickItem::wheelEvent(QWheelEvent *event) +{ + Q_D(QWaylandQuickItem); + if (d->shouldSendInputEvents()) { + if (!inputRegionContains(event->pos())) { + event->ignore(); + return; + } + + QWaylandInputDevice *inputDevice = compositor()->inputDeviceFor(event); + inputDevice->sendMouseWheelEvent(event->orientation(), event->delta()); + } else { + event->ignore(); + } +} + +/*! + * \internal + */ +void QWaylandQuickItem::keyPressEvent(QKeyEvent *event) +{ + Q_D(QWaylandQuickItem); + if (d->shouldSendInputEvents()) { + QWaylandInputDevice *inputDevice = compositor()->inputDeviceFor(event); + inputDevice->sendFullKeyEvent(event); + } else { + event->ignore(); + } +} + +/*! + * \internal + */ +void QWaylandQuickItem::keyReleaseEvent(QKeyEvent *event) +{ + Q_D(QWaylandQuickItem); + if (d->shouldSendInputEvents() && hasFocus()) { + QWaylandInputDevice *inputDevice = compositor()->inputDeviceFor(event); + inputDevice->sendFullKeyEvent(event); + } else { + event->ignore(); + } +} + +/*! + * \internal + */ +void QWaylandQuickItem::touchEvent(QTouchEvent *event) +{ + Q_D(QWaylandQuickItem); + if (d->shouldSendInputEvents() && d->touchEventsEnabled) { + QWaylandInputDevice *inputDevice = compositor()->inputDeviceFor(event); + + if (event->type() == QEvent::TouchBegin) { + QQuickItem *grabber = window()->mouseGrabberItem(); + if (grabber != this) + grabMouse(); + } + + QPoint pointPos; + const QList<QTouchEvent::TouchPoint> &points = event->touchPoints(); + if (!points.isEmpty()) + pointPos = points.at(0).pos().toPoint(); + + if (event->type() == QEvent::TouchBegin && !inputRegionContains(pointPos)) { + event->ignore(); + return; + } + + event->accept(); + if (inputDevice->mouseFocus() != d->view.data()) { + inputDevice->sendMouseMoveEvent(d->view.data(), pointPos, mapToScene(pointPos)); + } + inputDevice->sendFullTouchEvent(event); + } else { + event->ignore(); + } +} + +/*! + * \internal + */ +void QWaylandQuickItem::mouseUngrabEvent() +{ + if (surface()) { + QTouchEvent e(QEvent::TouchCancel); + touchEvent(&e); + } +} + +/*! + * \internal + */ +void QWaylandQuickItem::surfaceChangedEvent(QWaylandSurface *newSurface, QWaylandSurface *oldSurface) +{ + Q_UNUSED(newSurface); + Q_UNUSED(oldSurface); +} + +/*! + * \internal + */ +void QWaylandQuickItem::handleSurfaceChanged() +{ + Q_D(QWaylandQuickItem); + if (d->oldSurface) { + disconnect(d->oldSurface, &QWaylandSurface::mappedChanged, this, &QWaylandQuickItem::surfaceMappedChanged); + disconnect(d->oldSurface, &QWaylandSurface::parentChanged, this, &QWaylandQuickItem::parentChanged); + disconnect(d->oldSurface, &QWaylandSurface::sizeChanged, this, &QWaylandQuickItem::updateSize); + disconnect(d->oldSurface, &QWaylandSurface::configure, this, &QWaylandQuickItem::updateBuffer); + disconnect(d->oldSurface, &QWaylandSurface::redraw, this, &QQuickItem::update); + } + if (QWaylandSurface *newSurface = d->view->surface()) { + connect(newSurface, &QWaylandSurface::mappedChanged, this, &QWaylandQuickItem::surfaceMappedChanged); + connect(newSurface, &QWaylandSurface::parentChanged, this, &QWaylandQuickItem::parentChanged); + connect(newSurface, &QWaylandSurface::sizeChanged, this, &QWaylandQuickItem::updateSize); + connect(newSurface, &QWaylandSurface::configure, this, &QWaylandQuickItem::updateBuffer); + connect(newSurface, &QWaylandSurface::redraw, this, &QQuickItem::update); + if (d->sizeFollowsSurface) { + setWidth(newSurface->size().width()); + setHeight(newSurface->size().height()); + } + if (newSurface->origin() != d->origin) { + d->origin = newSurface->origin(); + emit originChanged(); + } + if (window()) { + QWaylandOutput *output = newSurface->compositor()->outputFor(window()); + d->view->setOutput(output); + } + } + surfaceChangedEvent(d->view->surface(), d->oldSurface); + d->oldSurface = d->view->surface(); +} + +/*! + * Calling this function causes the item to take the focus of the + * input \a device. + */ +void QWaylandQuickItem::takeFocus(QWaylandInputDevice *device) +{ + setFocus(true); + + if (!surface()) + return; + + QWaylandInputDevice *target = device; + if (!target) { + target = compositor()->defaultInputDevice(); + } + target->setKeyboardFocus(surface()); +} + +/*! + * \internal + */ +void QWaylandQuickItem::surfaceMappedChanged() +{ + update(); +} + +/*! + * \internal + */ +void QWaylandQuickItem::parentChanged(QWaylandSurface *newParent, QWaylandSurface *oldParent) +{ + Q_UNUSED(oldParent); + + if (newParent) { + setPaintEnabled(true); + setVisible(true); + setOpacity(1); + setEnabled(true); + } +} + +/*! + * \internal + */ +void QWaylandQuickItem::updateSize() +{ + Q_D(QWaylandQuickItem); + if (d->sizeFollowsSurface && surface()) { + setSize(surface()->size()); + } +} + +/*! + * \qmlproperty bool QtWaylandCompositor::WaylandQuickItem::focusOnClick + * + * This property specifies whether the WaylandQuickItem should take focus when + * it is clicked. + * + * The default is true. + */ + +/*! + * \property QWaylandQuickItem::focusOnClick + * + * This property specifies whether the QWaylandQuickItem should take focus when + * it is clicked. + * + * The default is true. + */ +bool QWaylandQuickItem::focusOnClick() const +{ + Q_D(const QWaylandQuickItem); + return d->focusOnClick; +} + +void QWaylandQuickItem::setFocusOnClick(bool focus) +{ + Q_D(QWaylandQuickItem); + if (d->focusOnClick == focus) + return; + + d->focusOnClick = focus; + emit focusOnClickChanged(); +} + +/*! + * Returns true if the input region of this item's surface contains the + * position given by \a localPosition. + */ +bool QWaylandQuickItem::inputRegionContains(const QPointF &localPosition) +{ + if (QWaylandSurface *s = surface()) + return s->inputRegionContains(localPosition.toPoint()); + return false; +} + +/*! + * \qmlproperty bool QtWaylandCompositor::WaylandQuickItem::sizeFollowsSurface + * + * This property specifies whether the size of the item should always match + * the size of its surface. + * + * The default is true. + */ + +/*! + * \property QWaylandQuickItem::sizeFollowsSurface + * + * This property specifies whether the size of the item should always match + * the size of its surface. + * + * The default is true. + */ +bool QWaylandQuickItem::sizeFollowsSurface() const +{ + Q_D(const QWaylandQuickItem); + return d->sizeFollowsSurface; +} + +void QWaylandQuickItem::setSizeFollowsSurface(bool sizeFollowsSurface) +{ + Q_D(QWaylandQuickItem); + if (d->sizeFollowsSurface == sizeFollowsSurface) + return; + d->sizeFollowsSurface = sizeFollowsSurface; + emit sizeFollowsSurfaceChanged(); +} + +/*! + \qmlproperty bool QtWayland::QWaylandSurfaceItem::paintEnabled + + If this property is true, the \l item is hidden, though the texture + will still be updated. As opposed to hiding the \l item by + setting \l{Item::visible}{visible} to false, setting this property to true + will not prevent mouse or keyboard input from reaching \l item. +*/ +bool QWaylandQuickItem::paintEnabled() const +{ + Q_D(const QWaylandQuickItem); + return d->paintEnabled; +} + +void QWaylandQuickItem::setPaintEnabled(bool enabled) +{ + Q_D(QWaylandQuickItem); + d->paintEnabled = enabled; + update(); +} + +bool QWaylandQuickItem::touchEventsEnabled() const +{ + Q_D(const QWaylandQuickItem); + return d->touchEventsEnabled; +} + +void QWaylandQuickItem::updateBuffer(bool hasBuffer) +{ + Q_D(QWaylandQuickItem); + Q_UNUSED(hasBuffer); + if (d->origin != surface()->origin()) { + d->origin = surface()->origin(); + emit originChanged(); + } +} + +void QWaylandQuickItem::updateWindow() +{ + Q_D(QWaylandQuickItem); + if (d->connectedWindow) { + disconnect(d->connectedWindow, &QQuickWindow::beforeSynchronizing, this, &QWaylandQuickItem::beforeSync); + } + + d->connectedWindow = window(); + + if (d->connectedWindow) { + connect(d->connectedWindow, &QQuickWindow::beforeSynchronizing, this, &QWaylandQuickItem::beforeSync, Qt::DirectConnection); + } + + if (compositor() && d->connectedWindow) { + QWaylandOutput *output = compositor()->outputFor(d->connectedWindow); + Q_ASSERT(output); + d->view->setOutput(output); + } +} + +void QWaylandQuickItem::beforeSync() +{ + Q_D(QWaylandQuickItem); + if (d->view->advance()) { + d->newTexture = true; + update(); + } +} + +QSGNode *QWaylandQuickItem::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *) +{ + Q_D(QWaylandQuickItem); + bool mapped = (surface() && surface()->isMapped() && d->view->currentBuffer().hasBuffer()) + || (d->view->isBufferLocked() && d->provider); + + if (!mapped || !d->paintEnabled) { + delete oldNode; + return 0; + } + + QSGSimpleTextureNode *node = static_cast<QSGSimpleTextureNode *>(oldNode); + + if (!node) + node = new QSGSimpleTextureNode(); + + if (!d->provider) + d->provider = new QWaylandSurfaceTextureProvider(); + + if (d->newTexture) { + d->newTexture = false; + d->provider->setBufferRef(this, d->view->currentBuffer()); + node->setTexture(d->provider->texture()); + } + + d->provider->setSmooth(smooth()); + + if (d->provider->invertY()) { + node->setRect(0, height(), width(), -height()); + } else { + node->setRect(0, 0, width(), height()); + } + + return node; +} + +void QWaylandQuickItem::setTouchEventsEnabled(bool enabled) +{ + Q_D(QWaylandQuickItem); + if (d->touchEventsEnabled != enabled) { + d->touchEventsEnabled = enabled; + emit touchEventsEnabledChanged(); + } +} + +bool QWaylandQuickItem::inputEventsEnabled() const +{ + Q_D(const QWaylandQuickItem); + return d->inputEventsEnabled; +} + +void QWaylandQuickItem::setInputEventsEnabled(bool enabled) +{ + Q_D(QWaylandQuickItem); + if (d->inputEventsEnabled != enabled) { + d->inputEventsEnabled = enabled; + setAcceptHoverEvents(enabled); + emit inputEventsEnabledChanged(); + } +} + +void QWaylandQuickItem::lower() +{ + QQuickItem *parent = parentItem(); + Q_ASSERT(parent); + QQuickItem *bottom = parent->childItems().first(); + if (this != bottom) + stackBefore(bottom); +} + +void QWaylandQuickItem::raise() +{ + QQuickItem *parent = parentItem(); + Q_ASSERT(parent); + QQuickItem *top = parent->childItems().last(); + if (this != top) + stackAfter(top); +} + +QT_END_NAMESPACE |