--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKitTools/QtTestBrowser/webview.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,250 @@
+/*
+ * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies)
+ * Copyright (C) 2009 Girish Ramakrishnan <girish@forwardbias.in>
+ * Copyright (C) 2006 George Staikos <staikos@kde.org>
+ * Copyright (C) 2006 Dirk Mueller <mueller@kde.org>
+ * Copyright (C) 2006 Zack Rusin <zack@kde.org>
+ * Copyright (C) 2006 Simon Hausmann <hausmann@kde.org>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "webview.h"
+
+#include <QtGui>
+#include <QGraphicsScene>
+
+WebViewGraphicsBased::WebViewGraphicsBased(QWidget* parent)
+    : QGraphicsView(parent)
+    , m_item(new GraphicsWebView)
+    , m_numPaintsTotal(0)
+    , m_numPaintsSinceLastMeasure(0)
+    , m_measureFps(false)
+    , m_resizesToContents(false)
+{
+    setScene(new QGraphicsScene(this));
+    scene()->addItem(m_item);
+
+    setFrameShape(QFrame::NoFrame);
+    setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+
+#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
+    QStateMachine* machine = new QStateMachine(this);
+    QState* s0 = new QState(machine);
+    s0->assignProperty(this, "yRotation", 0);
+
+    QState* s1 = new QState(machine);
+    s1->assignProperty(this, "yRotation", 90);
+
+    QAbstractTransition* t1 = s0->addTransition(this, SIGNAL(yFlipRequest()), s1);
+    QPropertyAnimation* yRotationAnim = new QPropertyAnimation(this, "yRotation", this);
+    yRotationAnim->setDuration(1000);
+    t1->addAnimation(yRotationAnim);
+
+    QState* s2 = new QState(machine);
+    s2->assignProperty(this, "yRotation", -90);
+    s1->addTransition(s1, SIGNAL(propertiesAssigned()), s2);
+
+    QAbstractTransition* t2 = s2->addTransition(s0);
+    t2->addAnimation(yRotationAnim);
+
+    machine->setInitialState(s0);
+    machine->start();
+#endif
+
+    m_updateTimer = new QTimer(this);
+    m_updateTimer->setInterval(1000);
+    connect(m_updateTimer, SIGNAL(timeout()), this, SLOT(updateFrameRate()));
+}
+
+void WebViewGraphicsBased::setPage(QWebPage* page)
+{
+    connect(page->mainFrame(), SIGNAL(contentsSizeChanged(const QSize&)), SLOT(contentsSizeChanged(const QSize&)));
+    m_item->setPage(page);
+}
+
+void WebViewGraphicsBased::contentsSizeChanged(const QSize& size)
+{
+    if (m_resizesToContents)
+        scene()->setSceneRect(0, 0, size.width(), size.height());
+}
+
+void WebViewGraphicsBased::setResizesToContents(bool b)
+{
+    if (b == m_resizesToContents)
+        return;
+
+    m_resizesToContents = b;
+    m_item->setResizesToContents(m_resizesToContents);
+
+    // When setting resizesToContents ON, our web view widget will always size as big as the
+    // web content being displayed, and so will the QWebPage's viewport. It implies that internally
+    // WebCore will work as if there was no content rendered offscreen, and then no scrollbars need
+    // drawing. In order to keep scrolling working, we:
+    //
+    // 1) Set QGraphicsView's scrollbars policy back to 'auto'.
+    // 2) Set scene's boundaries rect to an invalid size, which automatically makes it to be as big
+    //    as it needs to enclose all items onto it. We do that because QGraphicsView also calculates
+    //    the size of its scrollable area according to the amount of content in scene that is rendered
+    //    offscreen.
+    // 3) Set QWebPage's preferredContentsSize according to the size of QGraphicsView's viewport,
+    //    so WebCore properly lays pages out.
+    //
+    // On the other hand, when toggling resizesToContents OFF, we set back the default values, as
+    // opposite as described above.
+    if (m_resizesToContents) {
+        setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
+        setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
+        m_item->page()->setPreferredContentsSize(size());
+        QRectF itemRect(m_item->geometry().topLeft(), m_item->page()->mainFrame()->contentsSize());
+        m_item->setGeometry(itemRect);
+        scene()->setSceneRect(itemRect);
+    } else {
+        setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+        setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+        m_item->page()->setPreferredContentsSize(QSize());
+        QRect viewportRect(QPoint(0, 0), size());
+        m_item->setGeometry(viewportRect);
+        scene()->setSceneRect(viewportRect);
+    }
+}
+
+void WebViewGraphicsBased::resizeEvent(QResizeEvent* event)
+{
+    QGraphicsView::resizeEvent(event);
+
+    QSize size(event->size());
+
+    if (m_resizesToContents) {
+        m_item->page()->setPreferredContentsSize(size);
+        return;
+    }
+
+    QRectF rect(QPoint(0, 0), size);
+    m_item->setGeometry(rect);
+    scene()->setSceneRect(rect);
+}
+
+void WebViewGraphicsBased::setFrameRateMeasurementEnabled(bool enabled)
+{
+    m_measureFps = enabled;
+    if (m_measureFps) {
+        m_lastConsultTime = m_startTime = QTime::currentTime();
+        m_fpsTimer.start();
+        m_updateTimer->start();
+    } else {
+        m_fpsTimer.stop();
+        m_updateTimer->stop();
+    }
+}
+
+void WebViewGraphicsBased::updateFrameRate()
+{
+    const QTime now = QTime::currentTime();
+    int interval = m_lastConsultTime.msecsTo(now);
+    int frames = m_fpsTimer.numFrames(interval);
+    int current = interval ? frames * 1000 / interval : 0;
+
+    emit currentFPSUpdated(current);
+
+    m_lastConsultTime = now;
+}
+
+void WebViewGraphicsBased::animatedFlip()
+{
+#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
+    QSizeF center = m_item->boundingRect().size() / 2;
+    QPointF centerPoint = QPointF(center.width(), center.height());
+    m_item->setTransformOriginPoint(centerPoint);
+
+    QPropertyAnimation* animation = new QPropertyAnimation(m_item, "rotation", this);
+    animation->setDuration(1000);
+
+    int rotation = int(m_item->rotation());
+
+    animation->setStartValue(rotation);
+    animation->setEndValue(rotation + 180 - (rotation % 180));
+
+    animation->start(QAbstractAnimation::DeleteWhenStopped);
+#endif
+}
+
+void WebViewGraphicsBased::animatedYFlip()
+{
+    emit yFlipRequest();
+}
+
+void WebViewGraphicsBased::paintEvent(QPaintEvent* event)
+{
+    QGraphicsView::paintEvent(event);
+    if (!m_measureFps)
+        return;
+}
+
+static QMenu* createContextMenu(QWebPage* page, QPoint position)
+{
+    QMenu* menu = page->createStandardContextMenu();
+
+    QWebHitTestResult r = page->mainFrame()->hitTestContent(position);
+
+    if (!r.linkUrl().isEmpty()) {
+        WebPage* webPage = qobject_cast<WebPage*>(page);
+        QAction* newTabAction = menu->addAction("Open in Default &Browser", webPage, SLOT(openUrlInDefaultBrowser()));
+        newTabAction->setData(r.linkUrl());
+        menu->insertAction(menu->actions().at(2), newTabAction);
+    }
+    return menu;
+}
+
+void GraphicsWebView::mousePressEvent(QGraphicsSceneMouseEvent* event)
+{
+    setProperty("mouseButtons", QVariant::fromValue(int(event->buttons())));
+    setProperty("keyboardModifiers", QVariant::fromValue(int(event->modifiers())));
+
+    QGraphicsWebView::mousePressEvent(event);
+}
+
+void WebViewTraditional::mousePressEvent(QMouseEvent* event)
+{
+    setProperty("mouseButtons", QVariant::fromValue(int(event->buttons())));
+    setProperty("keyboardModifiers", QVariant::fromValue(int(event->modifiers())));
+
+    QWebView::mousePressEvent(event);
+}
+
+void GraphicsWebView::contextMenuEvent(QGraphicsSceneContextMenuEvent* event)
+{
+    QMenu* menu = createContextMenu(page(), event->pos().toPoint());
+    menu->exec(event->screenPos());
+    delete menu;
+}
+
+void WebViewTraditional::contextMenuEvent(QContextMenuEvent* event)
+{
+    QMenu* menu = createContextMenu(page(), event->pos());
+    menu->exec(event->globalPos());
+    delete menu;
+}
+