1 /*

     2  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.

     3  * Copyright (C) 2007-2009 Torch Mobile, Inc.

     4  *

     5  * Redistribution and use in source and binary forms, with or without

     6  * modification, are permitted provided that the following conditions

     7  * are met:

     8  * 1. Redistributions of source code must retain the above copyright

     9  *    notice, this list of conditions and the following disclaimer.

    10  * 2. Redistributions in binary form must reproduce the above copyright

    11  *    notice, this list of conditions and the following disclaimer in the

    12  *    documentation and/or other materials provided with the distribution.

    13  *

    14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

    15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

    18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

    22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

    25  */

    26 

    27 #include "config.h"

    28 #include "EventHandler.h"

    29 

    30 #include "Cursor.h"

    31 #include "FloatPoint.h"

    32 #include "FocusController.h"

    33 #include "FrameView.h"

    34 #include "Frame.h"

    35 #include "HitTestRequest.h"

    36 #include "HitTestResult.h"

    37 #include "MouseEventWithHitTestResults.h"

    38 #include "Page.h"

    39 #include "PlatformKeyboardEvent.h"

    40 #include "PlatformWheelEvent.h"

    41 #include "Scrollbar.h"

    42 #include "SelectionController.h"

    43 #include "WCDataObject.h"

    44 #include "NotImplemented.h"

    45 

    46 #if OS(WINCE)

    47 #include "Clipboard.h"

    48 #else

    49 #include "ClipboardWin.h"

    50 #endif

    51 

    52 namespace WebCore {

    53 

    54 const double EventHandler::TextDragDelay = 0.0;

    55 

    56 bool EventHandler::passMousePressEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe)

    57 {

    58     subframe->eventHandler()->handleMousePressEvent(mev.event());

    59     return true;

    60 }

    61 

    62 bool EventHandler::passMouseMoveEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe, HitTestResult* hoveredNode)

    63 {

    64     if (m_mouseDownMayStartDrag && !m_mouseDownWasInSubframe)

    65         return false;

    66     subframe->eventHandler()->handleMouseMoveEvent(mev.event(), hoveredNode);

    67     return true;

    68 }

    69 

    70 bool EventHandler::passMouseReleaseEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe)

    71 {

    72     subframe->eventHandler()->handleMouseReleaseEvent(mev.event());

    73     return true;

    74 }

    75 

    76 bool EventHandler::passWheelEventToWidget(PlatformWheelEvent& wheelEvent, Widget* widget)

    77 {

    78     if (!widget->isFrameView())

    79         return false;

    80 

    81     return static_cast<FrameView*>(widget)->frame()->eventHandler()->handleWheelEvent(wheelEvent);

    82 }

    83 

    84 bool EventHandler::tabsToAllControls(KeyboardEvent*) const

    85 {

    86     return true;

    87 }

    88 

    89 bool EventHandler::eventActivatedView(const PlatformMouseEvent& event) const

    90 {

    91     return event.activatedWebView();

    92 }

    93 

    94 PassRefPtr<Clipboard> EventHandler::createDraggingClipboard() const

    95 {

    96 #if OS(WINCE)

    97     return 0;

    98 #else

    99     COMPtr<WCDataObject> dataObject;

   100     WCDataObject::createInstance(&dataObject);

   101     return ClipboardWin::create(true, dataObject.get(), ClipboardWritable);

   102 #endif

   103 }

   104 

   105 void EventHandler::focusDocumentView()

   106 {

   107     Page* page = m_frame->page();

   108     if (!page)

   109         return;

   110     page->focusController()->setFocusedFrame(m_frame);

   111 }

   112 

   113 bool EventHandler::passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults&)

   114 {

   115     notImplemented();

   116     return false;

   117 }

   118 

   119 unsigned EventHandler::accessKeyModifiers()

   120 {

   121     return PlatformKeyboardEvent::AltKey;

   122 }

   123 

   124 }