1/* 2 * Copyright 2009, The Android Open Source Project 3 * Copyright (C) 2006 Zack Rusin <zack@kde.org> 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#define LOG_TAG "WebCore" 27 28#include "config.h" 29#include "EventHandler.h" 30 31#include "FocusController.h" 32#include "Frame.h" 33#include "KeyboardEvent.h" 34#include "MouseEventWithHitTestResults.h" 35#include "Page.h" 36#include "PlatformKeyboardEvent.h" 37#include "PlatformWheelEvent.h" 38#include "RenderWidget.h" 39 40namespace WebCore { 41 42bool EventHandler::tabsToAllFormControls(KeyboardEvent*) const 43{ 44 return true; 45} 46 47void EventHandler::focusDocumentView() 48{ 49 if (Page* page = m_frame->page()) 50 page->focusController()->setFocusedFrame(m_frame); 51} 52 53bool EventHandler::passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults& event) 54{ 55 // Figure out which view to send the event to. 56 RenderObject* target = targetNode(event) ? targetNode(event)->renderer() : 0; 57 if (!target || !target->isWidget()) 58 return false; 59 return passMouseDownEventToWidget(toRenderWidget(target)->widget()); 60} 61 62bool EventHandler::passWidgetMouseDownEventToWidget(RenderWidget* renderWidget) 63{ 64 return passMouseDownEventToWidget(renderWidget->widget()); 65} 66 67// This function is used to route the mouse down event to the native widgets, it seems like a 68// work around for the Mac platform which does not support double clicks, but browsers do. 69bool EventHandler::passMouseDownEventToWidget(Widget*) 70{ 71 // return false so the normal propogation handles the event 72 return false; 73} 74 75bool EventHandler::eventActivatedView(const PlatformMouseEvent&) const 76{ 77 notImplemented(); 78 return false; 79} 80 81// This is called to route wheel events to child widgets when they are RenderWidget 82// as the parent usually gets wheel event. Don't have a mouse with a wheel to confirm 83// the operation of this function. 84bool EventHandler::passWheelEventToWidget(PlatformWheelEvent&, Widget*) 85{ 86 notImplemented(); 87 return false; 88} 89 90bool EventHandler::passMousePressEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe) 91{ 92 subframe->eventHandler()->handleMousePressEvent(mev.event()); 93 return true; 94} 95 96bool EventHandler::passMouseMoveEventToSubframe(MouseEventWithHitTestResults& mev, 97 Frame* subframe, HitTestResult* hoveredNode) 98{ 99 subframe->eventHandler()->handleMouseMoveEvent(mev.event(), hoveredNode); 100 return true; 101} 102 103bool EventHandler::passMouseReleaseEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe) 104{ 105 subframe->eventHandler()->handleMouseReleaseEvent(mev.event()); 106 return true; 107} 108 109PassRefPtr<Clipboard> EventHandler::createDraggingClipboard() const 110{ 111 return PassRefPtr<Clipboard>(0); 112} 113 114unsigned EventHandler::accessKeyModifiers() 115{ 116 return PlatformKeyboardEvent::AltKey; 117} 118 119const double EventHandler::TextDragDelay = 0.0; 120 121} // namespace WebCore 122