Move wayland into a client directory not under the plugins src folder

And make wayland common files into a library, exporting all classes. Now
there is no need to do bulild hacks to make your own version of the
wayland plugin.

Change-Id: Ib4872863dfb5ab3f2bc0f4a94ae16fc1e7b63b88
Reviewed-by: Andy Nichols <andy.nichols@digia.com>

1 files changed, 209 insertions, 0 deletions

diff --git a/src/client/qwaylandtouch.cpp b/src/client/qwaylandtouch.cpp
new file mode 100644
index 00000000..5835d9d3
--- /dev/null
+++ b/src/client/qwaylandtouch.cpp
@@ -0,0 +1,209 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 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 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwaylandtouch.h"
+#include "qwaylandinputdevice.h"
+
+QT_BEGIN_NAMESPACE
+
+QWaylandTouchExtension::QWaylandTouchExtension(QWaylandDisplay *display, uint32_t id)
+    : QtWayland::qt_touch_extension(display->wl_registry(), id),
+      mDisplay(display),
+      mTouchDevice(0),
+      mPointsLeft(0),
+      mFlags(0),
+      mMouseSourceId(-1),
+      mInputDevice(0)
+{
+}
+
+void QWaylandTouchExtension::registerDevice(int caps)
+{
+    mTouchDevice = new QTouchDevice;
+    mTouchDevice->setType(QTouchDevice::TouchScreen);
+    mTouchDevice->setCapabilities(QTouchDevice::Capabilities(caps));
+    QWindowSystemInterface::registerTouchDevice(mTouchDevice);
+}
+
+static inline qreal fromFixed(int f)
+{
+    return f / qreal(10000);
+}
+
+void QWaylandTouchExtension::touch_extension_touch(uint32_t time,
+                                                   uint32_t id, uint32_t state, int32_t x, int32_t y,
+                                                   int32_t normalized_x, int32_t normalized_y,
+                                                   int32_t width, int32_t height, uint32_t pressure,
+                                                   int32_t velocity_x, int32_t velocity_y,
+                                                   uint32_t flags, wl_array *rawdata)
+{
+    if (!mInputDevice) {
+        QList<QWaylandInputDevice *> inputDevices = mDisplay->inputDevices();
+        if (inputDevices.isEmpty()) {
+            qWarning("qt_touch_extension: handle_touch: No input devices");
+            return;
+        }
+        mInputDevice = inputDevices.first();
+    }
+    QWaylandWindow *win = mInputDevice->mTouchFocus;
+    if (!win)
+        win = mInputDevice->mPointerFocus;
+    if (!win)
+        win = mInputDevice->mKeyboardFocus;
+    if (!win || !win->window()) {
+        qWarning("qt_touch_extension: handle_touch: No pointer focus");
+        return;
+    }
+    mTargetWindow = win->window();
+
+    QWindowSystemInterface::TouchPoint tp;
+    tp.id = id;
+    tp.state = Qt::TouchPointState(int(state & 0xFFFF));
+    int sentPointCount = state >> 16;
+    if (!mPointsLeft) {
+        Q_ASSERT(sentPointCount > 0);
+        mPointsLeft = sentPointCount;
+    }
+    tp.flags = QTouchEvent::TouchPoint::InfoFlags(int(flags & 0xFFFF));
+
+    if (!mTouchDevice)
+        registerDevice(flags >> 16);
+
+    tp.area = QRectF(0, 0, fromFixed(width), fromFixed(height));
+    // Got surface-relative coords but need a (virtual) screen position.
+    QPointF relPos = QPointF(fromFixed(x), fromFixed(y));
+    QPointF delta = relPos - relPos.toPoint();
+    tp.area.moveCenter(mTargetWindow->mapToGlobal(relPos.toPoint()) + delta);
+
+    tp.normalPosition.setX(fromFixed(normalized_x));
+    tp.normalPosition.setY(fromFixed(normalized_y));
+    tp.pressure = pressure / 255.0;
+    tp.velocity.setX(fromFixed(velocity_x));
+    tp.velocity.setY(fromFixed(velocity_y));
+
+    if (rawdata) {
+        const int rawPosCount = rawdata->size / sizeof(float) / 2;
+        float *p = static_cast<float *>(rawdata->data);
+        for (int i = 0; i < rawPosCount; ++i) {
+            float x = *p++;
+            float y = *p++;
+            tp.rawPositions.append(QPointF(x, y));
+        }
+    }
+
+    mTouchPoints.append(tp);
+    mTimestamp = time;
+
+    if (!--mPointsLeft)
+        sendTouchEvent();
+}
+
+void QWaylandTouchExtension::sendTouchEvent()
+{
+    // Copy all points, that are in the previous but not in the current list, as stationary.
+    for (int i = 0; i < mPrevTouchPoints.count(); ++i) {
+        const QWindowSystemInterface::TouchPoint &prevPoint(mPrevTouchPoints.at(i));
+        if (prevPoint.state == Qt::TouchPointReleased)
+            continue;
+        bool found = false;
+        for (int j = 0; j < mTouchPoints.count(); ++j)
+            if (mTouchPoints.at(j).id == prevPoint.id) {
+                found = true;
+                break;
+            }
+        if (!found) {
+            QWindowSystemInterface::TouchPoint p = prevPoint;
+            p.state = Qt::TouchPointStationary;
+            mTouchPoints.append(p);
+        }
+    }
+
+    if (mTouchPoints.isEmpty()) {
+        mPrevTouchPoints.clear();
+        return;
+    }
+
+    QWindowSystemInterface::handleTouchEvent(mTargetWindow, mTimestamp, mTouchDevice, mTouchPoints);
+
+    Qt::TouchPointStates states = 0;
+    for (int i = 0; i < mTouchPoints.count(); ++i)
+        states |= mTouchPoints.at(i).state;
+
+    if (mFlags & QT_TOUCH_EXTENSION_FLAGS_MOUSE_FROM_TOUCH) {
+        if (states == Qt::TouchPointPressed)
+            mMouseSourceId = mTouchPoints.first().id;
+        for (int i = 0; i < mTouchPoints.count(); ++i) {
+            const QWindowSystemInterface::TouchPoint &tp(mTouchPoints.at(i));
+            if (tp.id == mMouseSourceId) {
+                Qt::MouseButtons buttons = tp.state == Qt::TouchPointReleased ? Qt::NoButton : Qt::LeftButton;
+                mLastMouseGlobal = tp.area.center();
+                QPoint globalPoint = mLastMouseGlobal.toPoint();
+                QPointF delta = mLastMouseGlobal - globalPoint;
+                mLastMouseLocal = mTargetWindow->mapFromGlobal(globalPoint) + delta;
+                QWindowSystemInterface::handleMouseEvent(mTargetWindow, mTimestamp, mLastMouseLocal, mLastMouseGlobal, buttons);
+                if (buttons == Qt::NoButton)
+                    mMouseSourceId = -1;
+                break;
+            }
+        }
+    }
+
+    mPrevTouchPoints = mTouchPoints;
+    mTouchPoints.clear();
+
+    if (states == Qt::TouchPointReleased)
+        mPrevTouchPoints.clear();
+}
+
+void QWaylandTouchExtension::touchCanceled()
+{
+    mTouchPoints.clear();
+    mPrevTouchPoints.clear();
+    if (mMouseSourceId != -1)
+        QWindowSystemInterface::handleMouseEvent(mTargetWindow, mTimestamp, mLastMouseLocal, mLastMouseGlobal, Qt::NoButton);
+}
+
+void QWaylandTouchExtension::touch_extension_configure(uint32_t flags)
+{
+    mFlags = flags;
+}
+
+QT_END_NAMESPACE