1/* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32#include "ExternalPopupMenu.h" 33 34#include "FrameView.h" 35#include "IntPoint.h" 36#include "PopupMenuClient.h" 37#include "TextDirection.h" 38#include "WebExternalPopupMenu.h" 39#include "WebMenuItemInfo.h" 40#include "WebPopupMenuInfo.h" 41#include "WebVector.h" 42#include "WebViewClient.h" 43 44using namespace WebCore; 45 46namespace WebKit { 47 48ExternalPopupMenu::ExternalPopupMenu(PopupMenuClient* popupMenuClient, 49 WebViewClient* webViewClient) 50 : m_popupMenuClient(popupMenuClient) 51 , m_webViewClient(webViewClient) 52 , m_webExternalPopupMenu(0) 53{ 54} 55 56ExternalPopupMenu::~ExternalPopupMenu() 57{ 58} 59 60void ExternalPopupMenu::show(const IntRect& rect, FrameView* v, int index) 61{ 62 // WebCore reuses the PopupMenu of a page. 63 // For simplicity, we do recreate the actual external popup everytime. 64 hide(); 65 66 WebPopupMenuInfo info; 67 getPopupMenuInfo(&info); 68 if (info.items.isEmpty()) 69 return; 70 m_webExternalPopupMenu = 71 m_webViewClient->createExternalPopupMenu(info, this); 72 m_webExternalPopupMenu->show(v->contentsToWindow(rect)); 73} 74 75void ExternalPopupMenu::hide() 76{ 77 if (m_popupMenuClient) 78 m_popupMenuClient->popupDidHide(); 79 if (!m_webExternalPopupMenu) 80 return; 81 m_webExternalPopupMenu->close(); 82 m_webExternalPopupMenu = 0; 83} 84 85void ExternalPopupMenu::updateFromElement() 86{ 87} 88 89void ExternalPopupMenu::disconnectClient() 90{ 91 hide(); 92 m_popupMenuClient = 0; 93} 94 95void ExternalPopupMenu::didChangeSelection(int index) 96{ 97 if (m_popupMenuClient) 98 m_popupMenuClient->selectionChanged(index); 99} 100 101void ExternalPopupMenu::didAcceptIndex(int index) 102{ 103 // Calling methods on the PopupMenuClient might lead to this object being 104 // derefed. This ensures it does not get deleted while we are running this 105 // method. 106 RefPtr<ExternalPopupMenu> guard(this); 107 108 if (m_popupMenuClient) { 109 m_popupMenuClient->valueChanged(index); 110 // The call to valueChanged above might have lead to a call to 111 // disconnectClient, so we might not have a PopupMenuClient anymore. 112 if (m_popupMenuClient) 113 m_popupMenuClient->popupDidHide(); 114 } 115 m_webExternalPopupMenu = 0; 116} 117 118void ExternalPopupMenu::didCancel() 119{ 120 // See comment in didAcceptIndex on why we need this. 121 RefPtr<ExternalPopupMenu> guard(this); 122 123 if (m_popupMenuClient) 124 m_popupMenuClient->popupDidHide(); 125 m_webExternalPopupMenu = 0; 126} 127 128void ExternalPopupMenu::getPopupMenuInfo(WebPopupMenuInfo* info) 129{ 130 int itemCount = m_popupMenuClient->listSize(); 131 WebVector<WebMenuItemInfo> items( 132 static_cast<size_t>(itemCount)); 133 for (int i = 0; i < itemCount; ++i) { 134 WebMenuItemInfo& popupItem = items[i]; 135 popupItem.label = m_popupMenuClient->itemText(i); 136 if (m_popupMenuClient->itemIsSeparator(i)) 137 popupItem.type = WebMenuItemInfo::Separator; 138 else if (m_popupMenuClient->itemIsLabel(i)) 139 popupItem.type = WebMenuItemInfo::Group; 140 else 141 popupItem.type = WebMenuItemInfo::Option; 142 popupItem.enabled = m_popupMenuClient->itemIsEnabled(i); 143 PopupMenuStyle style = m_popupMenuClient->itemStyle(i); 144 if (style.textDirection() == WebCore::RTL) 145 popupItem.textDirection = WebTextDirectionRightToLeft; 146 else 147 popupItem.textDirection = WebTextDirectionLeftToRight; 148 popupItem.hasTextDirectionOverride = style.hasTextDirectionOverride(); 149 } 150 151 info->itemHeight = m_popupMenuClient->menuStyle().font().fontMetrics().height(); 152 info->itemFontSize = 153 static_cast<int>(m_popupMenuClient->menuStyle().font().size()); 154 info->selectedIndex = m_popupMenuClient->selectedIndex(); 155 info->rightAligned = 156 m_popupMenuClient->menuStyle().textDirection() == WebCore::RTL; 157 info->items.swap(items); 158} 159 160} // namespace WebKit 161