1/* 2 * Copyright (C) 2006 Zack Rusin <zack@kde.org> 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "EventHandler.h" 28 29#include "ClipboardGtk.h" 30#include "FloatPoint.h" 31#include "FocusController.h" 32#include "Frame.h" 33#include "FrameView.h" 34#include "KeyboardEvent.h" 35#include "MouseEventWithHitTestResults.h" 36#include "NotImplemented.h" 37#include "Page.h" 38#include "PlatformKeyboardEvent.h" 39#include "PlatformWheelEvent.h" 40#include "RenderWidget.h" 41#include "Scrollbar.h" 42 43namespace WebCore { 44 45const double EventHandler::TextDragDelay = 0.0; 46 47bool EventHandler::tabsToAllFormControls(KeyboardEvent* event) const 48{ 49 // We always allow tabs to all controls 50 return true; 51} 52 53void EventHandler::focusDocumentView() 54{ 55 if (Page* page = m_frame->page()) 56 page->focusController()->setFocusedFrame(m_frame); 57} 58 59bool EventHandler::passWidgetMouseDownEventToWidget(const MouseEventWithHitTestResults& event) 60{ 61 // Figure out which view to send the event to. 62 RenderObject* target = targetNode(event) ? targetNode(event)->renderer() : 0; 63 if (!target || !target->isWidget()) 64 return false; 65 return passMouseDownEventToWidget(toRenderWidget(target)->widget()); 66} 67 68bool EventHandler::passWidgetMouseDownEventToWidget(RenderWidget* renderWidget) 69{ 70 return passMouseDownEventToWidget(renderWidget->widget()); 71} 72 73bool EventHandler::passMouseDownEventToWidget(Widget* widget) 74{ 75 notImplemented(); 76 return false; 77} 78 79bool EventHandler::eventActivatedView(const PlatformMouseEvent&) const 80{ 81 //GTK+ activation is not necessarily tied to mouse events, so it may 82 //not make sense to implement this 83 84 notImplemented(); 85 return false; 86} 87 88bool EventHandler::passWheelEventToWidget(PlatformWheelEvent& event, Widget* widget) 89{ 90 ASSERT(widget); 91 if (!widget->isFrameView()) 92 return false; 93 94 return static_cast<FrameView*>(widget)->frame()->eventHandler()->handleWheelEvent(event); 95} 96 97PassRefPtr<Clipboard> EventHandler::createDraggingClipboard() const 98{ 99 return ClipboardGtk::create(ClipboardWritable, DataObjectGtk::create(), Clipboard::DragAndDrop, m_frame); 100} 101 102bool EventHandler::passMousePressEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe) 103{ 104 subframe->eventHandler()->handleMousePressEvent(mev.event()); 105 return true; 106} 107 108bool EventHandler::passMouseMoveEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe, HitTestResult* hoveredNode) 109{ 110 subframe->eventHandler()->handleMouseMoveEvent(mev.event(), hoveredNode); 111 return true; 112} 113 114bool EventHandler::passMouseReleaseEventToSubframe(MouseEventWithHitTestResults& mev, Frame* subframe) 115{ 116 subframe->eventHandler()->handleMouseReleaseEvent(mev.event()); 117 return true; 118} 119 120unsigned EventHandler::accessKeyModifiers() 121{ 122 return PlatformKeyboardEvent::AltKey; 123} 124 125// GTK+ must scroll horizontally if the mouse pointer is on top of the 126// horizontal scrollbar while scrolling with the wheel; we need to 127// add the deltas and ticks here so that this behavior is consistent 128// for styled scrollbars. 129bool EventHandler::shouldTurnVerticalTicksIntoHorizontal(const HitTestResult& result) const 130{ 131 return result.scrollbar() && result.scrollbar()->orientation() == HorizontalScrollbar; 132} 133 134} 135