1 files changed, 169 insertions, 0 deletions
diff --git a/src/compositor/extensions/qwaylandxdgshellintegration.cpp b/src/compositor/extensions/qwaylandxdgshellintegration.cpp
new file mode 100644
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+++ b/src/compositor/extensions/qwaylandxdgshellintegration.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2016 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 "qwaylandxdgshellintegration_p.h"
+
+#include <QtWaylandCompositor/QWaylandQuickShellSurfaceItem>
+#include <QtWaylandCompositor/QWaylandCompositor>
+#include <QtWaylandCompositor/QWaylandInputDevice>
+#include <QMouseEvent>
+
+namespace QtWayland {
+
+XdgShellIntegration::XdgShellIntegration(QWaylandQuickShellSurfaceItem *item)
+    : QWaylandQuickShellIntegration(item)
+    , m_item(item)
+    , m_xdgSurface(qobject_cast<QWaylandXdgSurface *>(item->shellSurface()))
+    , grabberState(GrabberState::Default)
+{
+    m_item->setSurface(m_xdgSurface->surface());
+    connect(m_xdgSurface, &QWaylandXdgSurface::startMove, this, &XdgShellIntegration::handleStartMove);
+    connect(m_xdgSurface, &QWaylandXdgSurface::startResize, this, &XdgShellIntegration::handleStartResize);
+    connect(m_xdgSurface, &QWaylandXdgSurface::setMaximized, this, &XdgShellIntegration::handleSetMaximized);
+    connect(m_xdgSurface, &QWaylandXdgSurface::unsetMaximized, this, &XdgShellIntegration::handleUnsetMaximized);
+    connect(m_xdgSurface, &QWaylandXdgSurface::maximizedChanged, this, &XdgShellIntegration::handleMaximizedChanged);
+    connect(m_xdgSurface, &QWaylandXdgSurface::activatedChanged, this, &XdgShellIntegration::handleActivatedChanged);
+    connect(m_xdgSurface->surface(), &QWaylandSurface::sizeChanged, this, &XdgShellIntegration::handleSurfaceSizeChanged);
+}
+
+bool XdgShellIntegration::mouseMoveEvent(QMouseEvent *event)
+{
+    if (grabberState == GrabberState::Resize) {
+        Q_ASSERT(resizeState.inputDevice == m_item->compositor()->inputDeviceFor(event));
+        if (!resizeState.initialized) {
+            resizeState.initialMousePos = event->windowPos();
+            resizeState.initialized = true;
+            return true;
+        }
+        float scaleFactor = m_item->view()->output()->scaleFactor();
+        QPointF delta = (event->windowPos() - resizeState.initialMousePos) / scaleFactor;
+        QSize newSize = m_xdgSurface->sizeForResize(resizeState.initialWindowSize, delta, resizeState.resizeEdges);
+        m_xdgSurface->requestResizing(newSize);
+    } else if (grabberState == GrabberState::Move) {
+        Q_ASSERT(moveState.inputDevice == m_item->compositor()->inputDeviceFor(event));
+        QQuickItem *moveItem = m_item->moveItem();
+        if (!moveState.initialized) {
+            moveState.initialOffset = moveItem->mapFromItem(nullptr, event->windowPos());
+            moveState.initialized = true;
+            return true;
+        }
+        if (!moveItem->parentItem())
+            return true;
+        QPointF parentPos = moveItem->parentItem()->mapFromItem(nullptr, event->windowPos());
+        moveItem->setPosition(parentPos - moveState.initialOffset);
+    }
+    return false;
+}
+
+bool XdgShellIntegration::mouseReleaseEvent(QMouseEvent *event)
+{
+    if (grabberState == GrabberState::Resize) {
+        float scaleFactor = m_item->view()->output()->scaleFactor();
+        QPointF delta = (event->windowPos() - resizeState.initialMousePos) / scaleFactor;
+        QSize newSize = m_xdgSurface->sizeForResize(resizeState.initialWindowSize, delta, resizeState.resizeEdges);
+        m_xdgSurface->requestUnMaximized(newSize);
+        grabberState = GrabberState::Default;
+        return true;
+    } else if (grabberState == GrabberState::Move) {
+        grabberState = GrabberState::Default;
+        return true;
+    }
+    return false;
+}
+
+void XdgShellIntegration::handleStartMove(QWaylandInputDevice *inputDevice)
+{
+    grabberState = GrabberState::Move;
+    moveState.inputDevice = inputDevice;
+    moveState.initialized = false;
+}
+
+void XdgShellIntegration::handleStartResize(QWaylandInputDevice *inputDevice, QWaylandXdgSurface::ResizeEdge edges)
+{
+    grabberState = GrabberState::Resize;
+    resizeState.inputDevice = inputDevice;
+    resizeState.resizeEdges = edges;
+    resizeState.initialWindowSize = m_xdgSurface->windowGeometry().size();
+    resizeState.initialPosition = m_item->position();
+    resizeState.initialSurfaceSize = m_item->surface()->size();
+    resizeState.initialized = false;
+}
+
+void XdgShellIntegration::handleSetMaximized()
+{
+    maximizeState.initialWindowSize = m_xdgSurface->windowGeometry().size();
+    maximizeState.initialPosition = m_item->position();
+
+    QWaylandOutput *output = m_item->compositor()->outputs().first();
+    m_xdgSurface->requestMaximized(output->geometry().size() / output->scaleFactor());
+}
+
+void XdgShellIntegration::handleUnsetMaximized()
+{
+    m_xdgSurface->requestUnMaximized(maximizeState.initialWindowSize);
+}
+
+void XdgShellIntegration::handleMaximizedChanged()
+{
+    if (m_xdgSurface->maximized()) {
+        QWaylandOutput *output = m_item->compositor()->outputs().first();
+        m_item->setPosition(output->geometry().topLeft());
+    } else {
+        m_item->setPosition(maximizeState.initialPosition);
+    }
+}
+
+void XdgShellIntegration::handleActivatedChanged()
+{
+    if (m_xdgSurface->activated())
+        m_item->raise();
+}
+
+void XdgShellIntegration::handleSurfaceSizeChanged()
+{
+    if (grabberState == GrabberState::Resize) {
+        qreal x = resizeState.initialPosition.x();
+        qreal y = resizeState.initialPosition.y();
+        if (resizeState.resizeEdges & QWaylandXdgSurface::ResizeEdge::TopEdge)
+            y += resizeState.initialSurfaceSize.height() - m_item->surface()->size().height();
+
+        if (resizeState.resizeEdges & QWaylandXdgSurface::ResizeEdge::LeftEdge)
+            x += resizeState.initialSurfaceSize.width() - m_item->surface()->size().width();
+        m_item->setPosition(QPointF(x, y));
+    }
+}
+
+}