--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/dom/MouseEvent.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2001 Peter Kelly (pmk@post.com)
+ * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
+ * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
+ * Copyright (C) 2003, 2005, 2006, 2008 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "MouseEvent.h"
+
+#include "EventNames.h"
+
+namespace WebCore {
+
+MouseEvent::MouseEvent()
+    : m_button(0)
+    , m_buttonDown(false)
+{
+}
+
+MouseEvent::MouseEvent(const AtomicString& eventType, bool canBubble, bool cancelable, PassRefPtr<AbstractView> view,
+                       int detail, int screenX, int screenY, int pageX, int pageY,
+                       bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,
+                       unsigned short button, PassRefPtr<EventTarget> relatedTarget,
+                       PassRefPtr<Clipboard> clipboard, bool isSimulated)
+    : MouseRelatedEvent(eventType, canBubble, cancelable, view, detail, screenX, screenY,
+                        pageX, pageY, ctrlKey, altKey, shiftKey, metaKey, isSimulated)
+    , m_button(button == (unsigned short)-1 ? 0 : button)
+    , m_buttonDown(button != (unsigned short)-1)
+    , m_relatedTarget(relatedTarget)
+    , m_clipboard(clipboard)
+{
+}
+
+MouseEvent::~MouseEvent()
+{
+}
+
+void MouseEvent::initMouseEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<AbstractView> view,
+                                int detail, int screenX, int screenY, int clientX, int clientY,
+                                bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,
+                                unsigned short button, PassRefPtr<EventTarget> relatedTarget)
+{
+    if (dispatched())
+        return;
+
+    initUIEvent(type, canBubble, cancelable, view, detail);
+
+    m_screenX = screenX;
+    m_screenY = screenY;
+    m_ctrlKey = ctrlKey;
+    m_altKey = altKey;
+    m_shiftKey = shiftKey;
+    m_metaKey = metaKey;
+    m_button = button == (unsigned short)-1 ? 0 : button;
+    m_buttonDown = button != (unsigned short)-1;
+    m_relatedTarget = relatedTarget;
+
+    initCoordinates(clientX, clientY);
+
+    // FIXME: m_isSimulated is not set to false here.
+    // FIXME: m_clipboard is not set to 0 here.
+}
+
+bool MouseEvent::isMouseEvent() const
+{
+    return true;
+}
+
+bool MouseEvent::isDragEvent() const
+{
+    const AtomicString& t = type();
+    return t == eventNames().dragenterEvent || t == eventNames().dragoverEvent || t == eventNames().dragleaveEvent || t == eventNames().dropEvent
+               || t == eventNames().dragstartEvent|| t == eventNames().dragEvent || t == eventNames().dragendEvent;
+}
+
+int MouseEvent::which() const
+{
+    // For the DOM, the return values for left, middle and right mouse buttons are 0, 1, 2, respectively.
+    // For the Netscape "which" property, the return values for left, middle and right mouse buttons are 1, 2, 3, respectively. 
+    // So we must add 1.
+    return m_button + 1;
+}
+
+Node* MouseEvent::toElement() const
+{
+    // MSIE extension - "the object toward which the user is moving the mouse pointer"
+    if (type() == eventNames().mouseoutEvent) 
+        return relatedTarget() ? relatedTarget()->toNode() : 0;
+    
+    return target() ? target()->toNode() : 0;
+}
+
+Node* MouseEvent::fromElement() const
+{
+    // MSIE extension - "object from which activation or the mouse pointer is exiting during the event" (huh?)
+    if (type() != eventNames().mouseoutEvent)
+        return relatedTarget() ? relatedTarget()->toNode() : 0;
+    
+    return target() ? target()->toNode() : 0;
+}
+
+} // namespace WebCore