1/* 2 * Copyright (C) 2014 Apple 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 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 INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "VisitedLinkTableController.h" 28 29#include "VisitedLinkProviderMessages.h" 30#include "VisitedLinkTableControllerMessages.h" 31#include "WebPage.h" 32#include "WebProcess.h" 33#include <WebCore/PageCache.h> 34#include <wtf/NeverDestroyed.h> 35 36using namespace WebCore; 37 38namespace WebKit { 39 40static HashMap<uint64_t, VisitedLinkTableController*>& visitedLinkTableControllers() 41{ 42 static NeverDestroyed<HashMap<uint64_t, VisitedLinkTableController*>> visitedLinkTableControllers; 43 44 return visitedLinkTableControllers; 45} 46 47PassRefPtr<VisitedLinkTableController> VisitedLinkTableController::getOrCreate(uint64_t identifier) 48{ 49 auto& visitedLinkTableControllerPtr = visitedLinkTableControllers().add(identifier, nullptr).iterator->value; 50 if (visitedLinkTableControllerPtr) 51 return visitedLinkTableControllerPtr; 52 53 RefPtr<VisitedLinkTableController> visitedLinkTableController = adoptRef(new VisitedLinkTableController(identifier)); 54 visitedLinkTableControllerPtr = visitedLinkTableController.get(); 55 56 return visitedLinkTableController.release(); 57} 58 59VisitedLinkTableController::VisitedLinkTableController(uint64_t identifier) 60 : m_identifier(identifier) 61{ 62 WebProcess::shared().addMessageReceiver(Messages::VisitedLinkTableController::messageReceiverName(), m_identifier, *this); 63} 64 65VisitedLinkTableController::~VisitedLinkTableController() 66{ 67 ASSERT(visitedLinkTableControllers().contains(m_identifier)); 68 69 WebProcess::shared().removeMessageReceiver(Messages::VisitedLinkTableController::messageReceiverName(), m_identifier); 70 71 visitedLinkTableControllers().remove(m_identifier); 72} 73 74bool VisitedLinkTableController::isLinkVisited(Page&, LinkHash linkHash, const URL&, const AtomicString&) 75{ 76 return m_visitedLinkTable.isLinkVisited(linkHash); 77} 78 79void VisitedLinkTableController::addVisitedLink(Page& page, LinkHash linkHash) 80{ 81 if (m_visitedLinkTable.isLinkVisited(linkHash)) 82 return; 83 84 WebPage* webPage = WebPage::fromCorePage(&page); 85 if (!webPage) 86 return; 87 88 WebProcess::shared().parentProcessConnection()->send(Messages::VisitedLinkProvider::AddVisitedLinkHashFromPage(webPage->pageID(), linkHash), m_identifier); 89} 90 91void VisitedLinkTableController::setVisitedLinkTable(const SharedMemory::Handle& handle) 92{ 93 RefPtr<SharedMemory> sharedMemory = SharedMemory::create(handle, SharedMemory::ReadOnly); 94 if (!sharedMemory) 95 return; 96 97 m_visitedLinkTable.setSharedMemory(sharedMemory.release()); 98 99 invalidateStylesForAllLinks(); 100 pageCache()->markPagesForVistedLinkStyleRecalc(); 101} 102 103void VisitedLinkTableController::visitedLinkStateChanged(const Vector<WebCore::LinkHash>& linkHashes) 104{ 105 for (auto linkHash : linkHashes) 106 invalidateStylesForLink(linkHash); 107 pageCache()->markPagesForVistedLinkStyleRecalc(); 108} 109 110void VisitedLinkTableController::allVisitedLinkStateChanged() 111{ 112 invalidateStylesForAllLinks(); 113 pageCache()->markPagesForVistedLinkStyleRecalc(); 114} 115 116void VisitedLinkTableController::removeAllVisitedLinks() 117{ 118 m_visitedLinkTable.clear(); 119 120 invalidateStylesForAllLinks(); 121 pageCache()->markPagesForVistedLinkStyleRecalc(); 122} 123 124} // namespace WebKit 125