blob: 2a5e105367a0fff695f80531bc4b5c7b99999d73 [file] [log] [blame]
/*
* Copyright (C) 2014 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 "WebVisitedLinkStore.h"
#include "WebHistory.h"
#include "WebView.h"
#include <WebCore/PageCache.h>
#include <wtf/NeverDestroyed.h>
using namespace WebCore;
static bool s_shouldTrackVisitedLinks;
static HashSet<WebVisitedLinkStore*>& visitedLinkStores()
{
static NeverDestroyed<HashSet<WebVisitedLinkStore*>> visitedLinkStores;
return visitedLinkStores;
}
Ref<WebVisitedLinkStore> WebVisitedLinkStore::create()
{
return adoptRef(*new WebVisitedLinkStore);
}
WebVisitedLinkStore::WebVisitedLinkStore()
: m_visitedLinksPopulated(false)
{
visitedLinkStores().add(this);
}
WebVisitedLinkStore::~WebVisitedLinkStore()
{
visitedLinkStores().remove(this);
}
void WebVisitedLinkStore::setShouldTrackVisitedLinks(bool shouldTrackVisitedLinks)
{
if (s_shouldTrackVisitedLinks == shouldTrackVisitedLinks)
return;
s_shouldTrackVisitedLinks = shouldTrackVisitedLinks;
if (!s_shouldTrackVisitedLinks)
removeAllVisitedLinks();
}
void WebVisitedLinkStore::removeAllVisitedLinks()
{
for (auto& visitedLinkStore : visitedLinkStores())
visitedLinkStore->removeVisitedLinkHashes();
}
void WebVisitedLinkStore::addVisitedLink(const String& urlString)
{
addVisitedLinkHash(computeSharedStringHash(urlString));
}
bool WebVisitedLinkStore::isLinkVisited(Page& page, SharedStringHash linkHash, const URL& baseURL, const AtomString& attributeURL)
{
populateVisitedLinksIfNeeded(page);
return m_visitedLinkHashes.contains(linkHash);
}
void WebVisitedLinkStore::addVisitedLink(Page&, SharedStringHash linkHash)
{
if (!s_shouldTrackVisitedLinks)
return;
addVisitedLinkHash(linkHash);
}
void WebVisitedLinkStore::populateVisitedLinksIfNeeded(Page& sourcePage)
{
if (m_visitedLinksPopulated)
return;
m_visitedLinksPopulated = true;
WebView* webView = kit(&sourcePage);
if (!webView)
return;
COMPtr<IWebHistoryDelegate> historyDelegate;
webView->historyDelegate(&historyDelegate);
if (historyDelegate) {
historyDelegate->populateVisitedLinksForWebView(webView);
return;
}
WebHistory* history = WebHistory::sharedHistory();
if (!history)
return;
history->addVisitedLinksToVisitedLinkStore(*this);
}
void WebVisitedLinkStore::addVisitedLinkHash(SharedStringHash linkHash)
{
ASSERT(s_shouldTrackVisitedLinks);
m_visitedLinkHashes.add(linkHash);
invalidateStylesForLink(linkHash);
}
void WebVisitedLinkStore::removeVisitedLinkHashes()
{
m_visitedLinksPopulated = false;
if (m_visitedLinkHashes.isEmpty())
return;
m_visitedLinkHashes.clear();
invalidateStylesForAllLinks();
}