1 /**

     2  * This file is part of the DOM implementation for KDE.

     3  *

     4  * Copyright (C) 2001 Peter Kelly (pmk@post.com)

     5  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)

     6  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)

     7  * Copyright (C) 2003, 2005, 2006 Apple Computer, Inc.

     8  *

     9  * This library is free software; you can redistribute it and/or

    10  * modify it under the terms of the GNU Library General Public

    11  * License as published by the Free Software Foundation; either

    12  * version 2 of the License, or (at your option) any later version.

    13  *

    14  * This library is distributed in the hope that it will be useful,

    15  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    17  * Library General Public License for more details.

    18  *

    19  * You should have received a copy of the GNU Library General Public License

    20  * along with this library; see the file COPYING.LIB.  If not, write to

    21  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    22  * Boston, MA 02110-1301, USA.

    23  */

    24 

    25 #include "config.h"

    26 #include "MouseEvent.h"

    27 

    28 #include "EventNames.h"

    29 

    30 namespace WebCore {

    31 

    32 using namespace EventNames;

    33 

    34 MouseEvent::MouseEvent()

    35     : m_button(0)

    36     , m_buttonDown(false)

    37 {

    38 }

    39 

    40 MouseEvent::MouseEvent(const AtomicString& eventType, bool canBubble, bool cancelable, AbstractView* view,

    41                        int detail, int screenX, int screenY, int pageX, int pageY,

    42                        bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,

    43                        unsigned short button, EventTargetNode* relatedTarget,

    44                        Clipboard* clipboard, bool isSimulated)

    45     : MouseRelatedEvent(eventType, canBubble, cancelable, view, detail, screenX, screenY,

    46                         pageX, pageY, ctrlKey, altKey, shiftKey, metaKey, isSimulated)

    47     , m_button(button == (unsigned short)-1 ? 0 : button)

    48     , m_buttonDown(button != (unsigned short)-1)

    49     , m_relatedTarget(relatedTarget)

    50     , m_clipboard(clipboard)

    51 {

    52 }

    53 

    54 MouseEvent::~MouseEvent()

    55 {

    56 }

    57 

    58 void MouseEvent::initMouseEvent(const AtomicString& type, bool canBubble, bool cancelable, AbstractView* view,

    59                                 int detail, int screenX, int screenY, int clientX, int clientY,

    60                                 bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,

    61                                 unsigned short button, EventTargetNode* relatedTarget)

    62 {

    63     if (dispatched())

    64         return;

    65 

    66     initUIEvent(type, canBubble, cancelable, view, detail);

    67 

    68     m_screenX = screenX;

    69     m_screenY = screenY;

    70     m_ctrlKey = ctrlKey;

    71     m_altKey = altKey;

    72     m_shiftKey = shiftKey;

    73     m_metaKey = metaKey;

    74     m_button = button == (unsigned short)-1 ? 0 : button;

    75     m_buttonDown = button != (unsigned short)-1;

    76     m_relatedTarget = relatedTarget;

    77 

    78     initCoordinates(clientX, clientY);

    79 

    80     // FIXME: m_isSimulated is not set to false here.

    81     // FIXME: m_clipboard is not set to 0 here.

    82 }

    83 

    84 bool MouseEvent::isMouseEvent() const

    85 {

    86     return true;

    87 }

    88 

    89 bool MouseEvent::isDragEvent() const

    90 {

    91     const AtomicString& t = type();

    92     return t == dragenterEvent || t == dragoverEvent || t == dragleaveEvent || t == dropEvent

    93                || t == dragstartEvent|| t == dragEvent || t == dragendEvent;

    94 }

    95 

    96 int MouseEvent::which() const

    97 {

    98     // For the DOM, the return values for left, middle and right mouse buttons are 0, 1, 2, respectively.

    99     // For the Netscape "which" property, the return values for left, middle and right mouse buttons are 1, 2, 3, respectively. 

   100     // So we must add 1.

   101     return m_button + 1;

   102 }

   103 

   104 Node* MouseEvent::toElement() const

   105 {

   106     // MSIE extension - "the object toward which the user is moving the mouse pointer"

   107     if (type() == mouseoutEvent) 

   108         return relatedTarget();

   109     

   110     return target() ? target()->toNode() : 0;

   111 }

   112 

   113 Node* MouseEvent::fromElement() const

   114 {

   115     // MSIE extension - "object from which activation or the mouse pointer is exiting during the event" (huh?)

   116     if (type() != mouseoutEvent)

   117         return relatedTarget();

   118     

   119     return target() ? target()->toNode() : 0;

   120 }

   121 

   122 } // namespace WebCore