--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/nmailui/src/nmviewerwebview.cpp	Tue Aug 31 15:04:17 2010 +0300
@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 2009-2010 Nokia Corporation and/or its subsidiary(-ies).
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of "Eclipse Public License v1.0"
+ * which accompanies this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html".
+ *
+ * Initial Contributors:
+ * Nokia Corporation - initial contribution.
+ *
+ * Contributors:
+ *
+ * Description: NMailUI web viewer. Inherits from
+ *              QGrapohicsWebView and handles gestures, etc.
+ */
+
+#include "nmuiheaders.h"
+
+/*!
+    Constructor.
+*/
+NmMailViewerWK::NmMailViewerWK()
+: QGraphicsWebView(),
+  mContent(),
+  mSuppressRelease(false)
+{
+    // Subscribe this widget to tap and pinch gestures.
+    grabGesture(Qt::TapGesture);
+    grabGesture(Qt::PinchGesture);
+    // Prevent this widget from accepting focus.
+    setFocusPolicy(Qt::NoFocus); 
+}
+
+/*!
+    Destructor.
+ */
+NmMailViewerWK::~NmMailViewerWK()
+{
+    mContent.clear();
+}
+
+/*!
+    Adds content into web view.
+ */
+void NmMailViewerWK::addContent(QString key, QVariant val, NmId partId, bool isFetched) 
+{
+    mContent[key] = NmMailViewerWkContentItem(val, partId, isFetched);
+}
+
+/*!
+    Returns resource from added content.
+ */
+QVariant NmMailViewerWK::loadResource(int type, const QUrl &name, NmId &partId, bool &isFetched)
+{
+    NM_FUNCTION;
+    
+    if (type == QTextDocument::ImageResource) {
+        QString key = '<' + name.path() + '>';
+        if (!mContent.contains(key)) {
+            key = name.path();
+        }
+        if (mContent.contains(key)) {
+            partId = mContent[key].mPartId;
+            isFetched = mContent[key].mIsFetched;
+            return mContent[key].mData;
+        }
+    }
+    return 0;
+}
+
+/*!
+    This is the main event handler that processes all incoming events in an
+    appropriate manner.
+ */
+bool NmMailViewerWK::event(QEvent* event)
+{
+    bool consumed = false;
+    if (event) {
+        switch (event->type()) {
+        case QEvent::Gesture:
+            // Handle gesture events.
+            gestureEvent(static_cast<QGestureEvent*>(event));
+            consumed = event->isAccepted();
+            break;
+        case QEvent::GraphicsSceneContextMenu:
+            // Handle context-menu events.
+            // contextMenuEvent() is invoked directly in order to override
+            // text selection in QWebPage.
+            contextMenuEvent(static_cast<QGraphicsSceneContextMenuEvent*>(event));
+            consumed = event->isAccepted();
+            break;
+        default:
+            // Invoke base class' event handler.
+            consumed = QGraphicsWebView::event(event);
+            break;
+        }
+    }
+    return consumed;
+}
+
+/*!
+    Handles context-menu events.
+ */
+void NmMailViewerWK::contextMenuEvent(QGraphicsSceneContextMenuEvent* event)
+{
+    if (event) {
+        // Suppress context-menu invocations.
+        event->accept();
+    }
+}
+
+/*!
+    Handles gesture events.
+ */
+void NmMailViewerWK::gestureEvent(QGestureEvent* event)
+{
+    if (event) {
+        if (QTapGesture* tap = static_cast<QTapGesture*>(event->gesture(Qt::TapGesture))) {
+            switch (tap->state()) {
+            case Qt::GestureCanceled:
+                // Tap cancellation suppresses the following mouse release.
+                mSuppressRelease = true;
+                break;
+            default:
+                // Other states disclose the following mouse release.
+                mSuppressRelease = false;
+                break;
+            }
+            event->accept();
+        }
+        if (QPinchGesture* pinch = static_cast<QPinchGesture*>(event->gesture(Qt::PinchGesture))) {
+            // Handle pinch (zoom).
+            // At the moment we simply consume the event.
+            event->accept();
+        }
+    }
+}
+
+/*!
+    Handles double-click events.
+ */
+void NmMailViewerWK::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event)
+{
+    if (event) {
+        // Handle double clicks (instant zoom).
+        // At the moment we simply consume the event.
+        event->accept();
+    }
+}
+
+/*!
+    Handles mouse-move events.
+ */
+void NmMailViewerWK::mouseMoveEvent(QGraphicsSceneMouseEvent* event)
+{
+    if (event) {
+        // Suppress drag selection.
+        event->accept();
+    }
+}
+
+/*!
+    Handles mouse-release events.
+ */
+void NmMailViewerWK::mouseReleaseEvent(QGraphicsSceneMouseEvent* event)
+{
+    if (event) {
+        // Suppress mouse release if the previous tap was cancelled.
+        // Otherwise, invoke the base class' event handler.
+        if (mSuppressRelease) {
+            event->accept();
+        } else {
+            QGraphicsWebView::mouseReleaseEvent(event);
+        }
+    }
+}