1 /*

     2  * Copyright (C) 2006 Zack Rusin <zack@kde.org>

     3  * Copyright (C) 2008 INdT - Instituto Nokia de Tecnologia

     4  * Copyright (C) 2009,2010 ProFUSION embedded systems

     5  * Copyright (C) 2009,2010 Samsung Electronics

     6  *

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

     8  * modification, are permitted provided that the following conditions

     9  * are met:

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

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

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

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

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

    15  *

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

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

    18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

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

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

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

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

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

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

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

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

    27  */

    28 

    29 #include "config.h"

    30 #include "EventHandler.h"

    31 

    32 #include "ClipboardEfl.h"

    33 #include "EventNames.h"

    34 #include "FloatPoint.h"

    35 #include "FocusController.h"

    36 #include "Frame.h"

    37 #include "FrameView.h"

    38 #include "KeyboardEvent.h"

    39 #include "MouseEventWithHitTestResults.h"

    40 #include "NotImplemented.h"

    41 #include "Page.h"

    42 #include "PlatformKeyboardEvent.h"

    43 #include "PlatformWheelEvent.h"

    44 #include "RenderWidget.h"

    45 #include "Scrollbar.h"

    46 

    47 namespace WebCore {

    48 

    49 const double EventHandler::TextDragDelay = 0.0;

    50 

    51 static bool isKeyboardOptionTab(KeyboardEvent* event)

    52 {

    53     return event

    54         && (event->type() == eventNames().keydownEvent || event->type() == eventNames().keypressEvent)

    55         && event->altKey()

    56         && event->keyIdentifier() == "U+0009";

    57 }

    58 

    59 bool EventHandler::invertSenseOfTabsToLinks(KeyboardEvent* event) const

    60 {

    61     return isKeyboardOptionTab(event);

    62 }

    63 

    64 bool EventHandler::tabsToAllControls(KeyboardEvent* event) const

    65 {

    66     return true;

    67 }

    68 

    69 void EventHandler::focusDocumentView()

    70 {

    71     if (Page* page = m_frame->page())

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

    73 }

    74 

    75 bool EventHandler::passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults& event)

    76 {

    77     RenderObject* target = event.targetNode() ? event.targetNode()->renderer() : 0;

    78 

    79     if (!target || !target->isWidget())

    80         return false;

    81 

    82     return passMouseDownEventToWidget(static_cast<RenderWidget*>(target)->widget());

    83 }

    84 

    85 bool EventHandler::passWidgetMouseDownEventToWidget(RenderWidget* renderWidget)

    86 {

    87     return passMouseDownEventToWidget(renderWidget->widget());

    88 }

    89 

    90 bool EventHandler::passMouseDownEventToWidget(Widget* widget)

    91 {

    92     notImplemented();

    93     return false;

    94 }

    95 

    96 bool EventHandler::eventActivatedView(const PlatformMouseEvent&) const

    97 {

    98     notImplemented();

    99     return false;

   100 }

   101 

   102 bool EventHandler::passWheelEventToWidget(PlatformWheelEvent& event, Widget* widget)

   103 {

   104     ASSERT(widget);

   105     if (!widget->isFrameView())

   106         return false;

   107 

   108     return static_cast<FrameView*>(widget)->frame()->eventHandler()->handleWheelEvent(event);

   109 }

   110 

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

   112 {

   113     return new ClipboardEfl(ClipboardWritable, true);

   114 }

   115 

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

   117 {

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

   119     return true;

   120 }

   121 

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

   123 {

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

   125     return true;

   126 }

   127 

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

   129 {

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

   131     return true;

   132 }

   133 

   134 unsigned EventHandler::accessKeyModifiers()

   135 {

   136     return PlatformKeyboardEvent::AltKey;

   137 }

   138 }