| /* |
| * Copyright (C) 2018 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 "SuspendedPageProxy.h" |
| |
| #include "Logging.h" |
| #include "WebPageMessages.h" |
| #include "WebPageProxy.h" |
| #include "WebPageProxyMessages.h" |
| #include "WebProcessMessages.h" |
| #include "WebProcessPool.h" |
| #include "WebProcessProxy.h" |
| #include <WebCore/URL.h> |
| #include <wtf/DebugUtilities.h> |
| |
| using namespace WebCore; |
| |
| namespace WebKit { |
| |
| #if !LOG_DISABLED |
| static const HashSet<IPC::StringReference>& messageNamesToIgnoreWhileSuspended() |
| { |
| static NeverDestroyed<HashSet<IPC::StringReference>> messageNames; |
| static std::once_flag onceFlag; |
| std::call_once(onceFlag, [] { |
| messageNames.get().add("BackForwardAddItem"); |
| messageNames.get().add("ClearAllEditCommands"); |
| messageNames.get().add("DidChangeContentSize"); |
| messageNames.get().add("DidChangeMainDocument"); |
| messageNames.get().add("DidChangeProgress"); |
| messageNames.get().add("DidCommitLoadForFrame"); |
| messageNames.get().add("DidDestroyNavigation"); |
| messageNames.get().add("DidFinishDocumentLoadForFrame"); |
| messageNames.get().add("DidFinishProgress"); |
| messageNames.get().add("DidFirstLayoutForFrame"); |
| messageNames.get().add("DidFirstVisuallyNonEmptyLayoutForFrame"); |
| messageNames.get().add("DidNavigateWithNavigationData"); |
| messageNames.get().add("DidReachLayoutMilestone"); |
| messageNames.get().add("DidRestoreScrollPosition"); |
| messageNames.get().add("DidSaveToPageCache"); |
| messageNames.get().add("DidStartProgress"); |
| messageNames.get().add("DidStartProvisionalLoadForFrame"); |
| messageNames.get().add("EditorStateChanged"); |
| messageNames.get().add("PageExtendedBackgroundColorDidChange"); |
| messageNames.get().add("SetRenderTreeSize"); |
| messageNames.get().add("SetStatusText"); |
| messageNames.get().add("SetNetworkRequestsInProgress"); |
| }); |
| |
| return messageNames; |
| } |
| #endif |
| |
| SuspendedPageProxy::SuspendedPageProxy(WebPageProxy& page, WebProcessProxy& process, WebBackForwardListItem& item) |
| : m_page(page) |
| , m_process(&process) |
| , m_backForwardListItem(item) |
| , m_origin(SecurityOriginData::fromURL({ ParsedURLString, item.url() })) |
| { |
| m_backForwardListItem->setSuspendedPage(this); |
| m_process->processPool().registerSuspendedPageProxy(*this); |
| m_process->send(Messages::WebPage::SetIsSuspended(true), m_page.pageID()); |
| } |
| |
| SuspendedPageProxy::~SuspendedPageProxy() |
| { |
| if (m_process) { |
| m_process->suspendedPageWasDestroyed(*this); |
| m_process->processPool().unregisterSuspendedPageProxy(*this); |
| } |
| |
| m_backForwardListItem->setSuspendedPage(nullptr); |
| } |
| |
| void SuspendedPageProxy::webProcessDidClose(WebProcessProxy& process) |
| { |
| ASSERT_UNUSED(process, &process == m_process); |
| |
| m_process->processPool().unregisterSuspendedPageProxy(*this); |
| m_process = nullptr; |
| |
| m_page.suspendedPageClosed(*this); |
| m_backForwardListItem->setSuspendedPage(nullptr); |
| } |
| |
| void SuspendedPageProxy::destroyWebPageInWebProcess() |
| { |
| m_process->send(Messages::WebPage::Close(), m_page.pageID()); |
| m_page.suspendedPageClosed(*this); |
| } |
| |
| void SuspendedPageProxy::didFinishLoad() |
| { |
| ASSERT(m_process); |
| LOG(ProcessSwapping, "SuspendedPageProxy %s from process %i finished transition to suspended", loggingString(), m_process->processIdentifier()); |
| |
| m_finishedSuspending = true; |
| |
| m_process->send(Messages::WebProcess::UpdateActivePages(), 0); |
| } |
| |
| void SuspendedPageProxy::didReceiveMessage(IPC::Connection&, IPC::Decoder& decoder) |
| { |
| ASSERT(decoder.messageReceiverName() == Messages::WebPageProxy::messageReceiverName()); |
| |
| if (decoder.messageName() == Messages::WebPageProxy::DidFinishLoadForFrame::name()) { |
| didFinishLoad(); |
| return; |
| } |
| #if !LOG_DISABLED |
| if (!messageNamesToIgnoreWhileSuspended().contains(decoder.messageName())) |
| LOG(ProcessSwapping, "SuspendedPageProxy received unexpected WebPageProxy message '%s'", decoder.messageName().toString().data()); |
| #endif |
| } |
| |
| #if !LOG_DISABLED |
| const char* SuspendedPageProxy::loggingString() const |
| { |
| return debugString("(", String::format("%p", this), " page ID ", String::number(m_page.pageID()), ", m_finishedSuspending ", String::number(m_finishedSuspending), ")"); |
| } |
| #endif |
| |
| } // namespace WebKit |