| /* |
| * Copyright (C) 2010, 2011 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "WebBackForwardListProxy.h" |
| |
| #include "DataReference.h" |
| #include "EncoderAdapter.h" |
| #include "WebCoreArgumentCoders.h" |
| #include "WebPage.h" |
| #include "WebPageProxyMessages.h" |
| #include "WebProcess.h" |
| #include "WebProcessProxyMessages.h" |
| #include <WebCore/HistoryItem.h> |
| #include <wtf/HashMap.h> |
| |
| using namespace WebCore; |
| |
| namespace WebKit { |
| |
| static const unsigned DefaultCapacity = 100; |
| static const unsigned NoCurrentItemIndex = UINT_MAX; |
| |
| // FIXME <rdar://problem/8819268>: This leaks all HistoryItems that go into these maps. |
| // We need to clear up the life time of these objects. |
| |
| typedef HashMap<uint64_t, RefPtr<HistoryItem> > IDToHistoryItemMap; |
| typedef HashMap<RefPtr<HistoryItem>, uint64_t> HistoryItemToIDMap; |
| |
| static IDToHistoryItemMap& idToHistoryItemMap() |
| { |
| DEFINE_STATIC_LOCAL(IDToHistoryItemMap, map, ()); |
| return map; |
| } |
| |
| static HistoryItemToIDMap& historyItemToIDMap() |
| { |
| DEFINE_STATIC_LOCAL(HistoryItemToIDMap, map, ()); |
| return map; |
| } |
| |
| static uint64_t uniqueHistoryItemID = 1; |
| |
| static uint64_t generateHistoryItemID() |
| { |
| // These IDs exist in the WebProcess for items created by the WebProcess. |
| // The IDs generated here need to never collide with the IDs created in WebBackForwardList in the UIProcess. |
| // We accomplish this by starting from 3, and only ever using odd ids. |
| uniqueHistoryItemID += 2; |
| return uniqueHistoryItemID; |
| } |
| |
| void WebBackForwardListProxy::setHighestItemIDFromUIProcess(uint64_t itemID) |
| { |
| if (itemID <= uniqueHistoryItemID) |
| return; |
| |
| if (itemID % 2) |
| uniqueHistoryItemID = itemID; |
| else |
| uniqueHistoryItemID = itemID + 1; |
| } |
| |
| static void updateBackForwardItem(uint64_t itemID, HistoryItem* item) |
| { |
| EncoderAdapter encoder; |
| item->encodeBackForwardTree(encoder); |
| |
| WebProcess::shared().connection()->send(Messages::WebProcessProxy::AddBackForwardItem(itemID, |
| item->originalURLString(), item->urlString(), item->title(), encoder.data()), 0); |
| } |
| |
| void WebBackForwardListProxy::addItemFromUIProcess(uint64_t itemID, PassRefPtr<WebCore::HistoryItem> prpItem) |
| { |
| RefPtr<HistoryItem> item = prpItem; |
| |
| // This item/itemID pair should not already exist in our maps. |
| ASSERT(!historyItemToIDMap().contains(item.get())); |
| ASSERT(!idToHistoryItemMap().contains(itemID)); |
| |
| historyItemToIDMap().set(item, itemID); |
| idToHistoryItemMap().set(itemID, item); |
| } |
| |
| static void WK2NotifyHistoryItemChanged(HistoryItem* item) |
| { |
| uint64_t itemID = historyItemToIDMap().get(item); |
| if (!itemID) |
| return; |
| |
| updateBackForwardItem(itemID, item); |
| } |
| |
| HistoryItem* WebBackForwardListProxy::itemForID(uint64_t itemID) |
| { |
| return idToHistoryItemMap().get(itemID).get(); |
| } |
| |
| uint64_t WebBackForwardListProxy::idForItem(HistoryItem* item) |
| { |
| ASSERT(item); |
| return historyItemToIDMap().get(item); |
| } |
| |
| void WebBackForwardListProxy::removeItem(uint64_t itemID) |
| { |
| IDToHistoryItemMap::iterator it = idToHistoryItemMap().find(itemID); |
| if (it == idToHistoryItemMap().end()) |
| return; |
| historyItemToIDMap().remove(it->second); |
| idToHistoryItemMap().remove(it); |
| } |
| |
| WebBackForwardListProxy::WebBackForwardListProxy(WebPage* page) |
| : m_page(page) |
| { |
| WebCore::notifyHistoryItemChanged = WK2NotifyHistoryItemChanged; |
| } |
| |
| void WebBackForwardListProxy::addItem(PassRefPtr<HistoryItem> prpItem) |
| { |
| RefPtr<HistoryItem> item = prpItem; |
| |
| ASSERT(!historyItemToIDMap().contains(item)); |
| |
| if (!m_page) |
| return; |
| |
| uint64_t itemID = generateHistoryItemID(); |
| |
| ASSERT(!idToHistoryItemMap().contains(itemID)); |
| |
| historyItemToIDMap().set(item, itemID); |
| idToHistoryItemMap().set(itemID, item); |
| |
| updateBackForwardItem(itemID, item.get()); |
| m_page->send(Messages::WebPageProxy::BackForwardAddItem(itemID)); |
| } |
| |
| void WebBackForwardListProxy::goToItem(HistoryItem* item) |
| { |
| if (!m_page) |
| return; |
| |
| m_page->send(Messages::WebPageProxy::BackForwardGoToItem(historyItemToIDMap().get(item))); |
| } |
| |
| HistoryItem* WebBackForwardListProxy::itemAtIndex(int itemIndex) |
| { |
| if (!m_page) |
| return 0; |
| |
| uint64_t itemID = 0; |
| if (!WebProcess::shared().connection()->sendSync(Messages::WebPageProxy::BackForwardItemAtIndex(itemIndex), Messages::WebPageProxy::BackForwardItemAtIndex::Reply(itemID), m_page->pageID())) |
| return 0; |
| |
| if (!itemID) |
| return 0; |
| |
| return idToHistoryItemMap().get(itemID).get(); |
| } |
| |
| int WebBackForwardListProxy::backListCount() |
| { |
| if (!m_page) |
| return 0; |
| |
| int backListCount = 0; |
| if (!WebProcess::shared().connection()->sendSync(Messages::WebPageProxy::BackForwardBackListCount(), Messages::WebPageProxy::BackForwardBackListCount::Reply(backListCount), m_page->pageID())) |
| return 0; |
| |
| return backListCount; |
| } |
| |
| int WebBackForwardListProxy::forwardListCount() |
| { |
| if (!m_page) |
| return 0; |
| |
| int forwardListCount = 0; |
| if (!WebProcess::shared().connection()->sendSync(Messages::WebPageProxy::BackForwardForwardListCount(), Messages::WebPageProxy::BackForwardForwardListCount::Reply(forwardListCount), m_page->pageID())) |
| return 0; |
| |
| return forwardListCount; |
| } |
| |
| void WebBackForwardListProxy::close() |
| { |
| m_page = 0; |
| } |
| |
| bool WebBackForwardListProxy::isActive() |
| { |
| // FIXME: Should check the the list is enabled and has non-zero capacity. |
| return true; |
| } |
| |
| void WebBackForwardListProxy::clear() |
| { |
| m_page->send(Messages::WebPageProxy::BackForwardClear()); |
| } |
| |
| #if ENABLE(WML) |
| void WebBackForwardListProxy::clearWMLPageHistory() |
| { |
| } |
| #endif |
| |
| } // namespace WebKit |