| /* |
| * Copyright (C) 2019 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 "WebBackForwardCacheEntry.h" |
| |
| #include "SuspendedPageProxy.h" |
| #include "WebProcessMessages.h" |
| #include "WebProcessProxy.h" |
| |
| namespace WebKit { |
| |
| WebBackForwardCacheEntry::WebBackForwardCacheEntry(WebBackForwardCache& backForwardCache, WebCore::BackForwardItemIdentifier backForwardItemID, WebCore::ProcessIdentifier processIdentifier, std::unique_ptr<SuspendedPageProxy>&& suspendedPage) |
| : m_backForwardCache(backForwardCache) |
| , m_processIdentifier(processIdentifier) |
| , m_backForwardItemID(backForwardItemID) |
| , m_suspendedPage(WTFMove(suspendedPage)) |
| { |
| } |
| |
| WebBackForwardCacheEntry::~WebBackForwardCacheEntry() |
| { |
| if (m_backForwardItemID && !m_suspendedPage) { |
| auto& process = this->process(); |
| process.sendWithAsyncReply(Messages::WebProcess::ClearCachedPage(m_backForwardItemID), [token = process.throttler().backgroundActivityToken()] { }); |
| } |
| } |
| |
| std::unique_ptr<SuspendedPageProxy> WebBackForwardCacheEntry::takeSuspendedPage() |
| { |
| ASSERT(m_suspendedPage); |
| m_backForwardItemID = { }; |
| return std::exchange(m_suspendedPage, nullptr); |
| } |
| |
| WebProcessProxy& WebBackForwardCacheEntry::process() const |
| { |
| auto* process = WebProcessProxy::processForIdentifier(m_processIdentifier); |
| ASSERT(process); |
| ASSERT(!m_suspendedPage || process == &m_suspendedPage->process()); |
| return *process; |
| } |
| |
| } // namespace WebKit |