15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2009 Google Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions are 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions in binary form must reproduce the above 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * copyright notice, this list of conditions and the following disclaimer 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * in the documentation and/or other materials provided with the 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * distribution. 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Neither the name of Google Inc. nor the names of its 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * contributors may be used to endorse or promote products derived from 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * this software without specific prior written permission. 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 3253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "BackForwardClientImpl.h" 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "WebViewClient.h" 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "WebViewImpl.h" 3653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/history/HistoryItem.h" 37591b958dee2cf159d33a0b931e6231072eaf38d5Ben Murdoch#include "wtf/text/StringConcatenate.h" 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)using namespace WebCore; 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)namespace WebKit { 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)const char backForwardNavigationScheme[] = "chrome-back-forward"; 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)BackForwardClientImpl::BackForwardClientImpl(WebViewImpl* webView) 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) : m_webView(webView) 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)BackForwardClientImpl::~BackForwardClientImpl() 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)void BackForwardClientImpl::addItem(PassRefPtr<HistoryItem> item) 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_currentItem = item; 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // If WebCore adds a new HistoryItem, it means this is a new navigation (ie, 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // not a reload or back/forward). 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_webView->observeNewNavigation(); 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (m_webView->client()) 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_webView->client()->didAddHistoryItem(); 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 6653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)void BackForwardClientImpl::goToItem(HistoryItem* item) 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_currentItem = item; 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (m_pendingHistoryItem == item) 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_pendingHistoryItem = 0; 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)HistoryItem* BackForwardClientImpl::itemAtIndex(int index) 755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!m_webView->client()) 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!index) 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return m_currentItem.get(); 815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (index > forwardListCount() || -index > backListCount()) 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Since we don't keep the entire back/forward list, we have no way to 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // properly implement this method. We return a dummy entry instead that we 875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // intercept in our FrameLoaderClient implementation in case WebCore asks 885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // to navigate to this HistoryItem. 895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // FIXME: We should change WebCore to handle history.{back,forward,go} 915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // differently. It should perhaps just ask the FrameLoaderClient to 925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // perform those navigations. 935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 9493ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) String urlString = String(backForwardNavigationScheme) + "://go/" + String::number(index); 9553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) m_pendingHistoryItem = HistoryItem::create(urlString); 965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return m_pendingHistoryItem.get(); 975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 9953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)int BackForwardClientImpl::backListCount() 1005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!m_webView->client()) 1025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 1035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return m_webView->client()->historyBackListCount(); 1055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 10753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)int BackForwardClientImpl::forwardListCount() 1085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1095c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!m_webView->client()) 1105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 1115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return m_webView->client()->historyForwardListCount(); 1135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 11553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)bool BackForwardClientImpl::isActive() 1165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return m_webView->client(); 1185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 12053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)void BackForwardClientImpl::close() 1215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_currentItem = 0; 1235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_pendingHistoryItem = 0; 1245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} // namespace WebKit 127