--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/page/PageGroup.cpp Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,361 @@
+/*
+ * Copyright (C) 2008 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. ``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
+ * 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 "PageGroup.h"
+
+#include "Chrome.h"
+#include "ChromeClient.h"
+#include "Document.h"
+#include "Frame.h"
+#include "IndexedDatabase.h"
+#include "Page.h"
+#include "Settings.h"
+#include "StorageNamespace.h"
+
+#if PLATFORM(CHROMIUM)
+#include "ChromiumBridge.h"
+#endif
+
+namespace WebCore {
+
+static unsigned getUniqueIdentifier()
+{
+ static unsigned currentIdentifier = 0;
+ return ++currentIdentifier;
+}
+
+// --------
+
+static bool shouldTrackVisitedLinks = false;
+
+PageGroup::PageGroup(const String& name)
+ : m_name(name)
+ , m_visitedLinksPopulated(false)
+ , m_identifier(getUniqueIdentifier())
+{
+}
+
+PageGroup::PageGroup(Page* page)
+ : m_visitedLinksPopulated(false)
+ , m_identifier(getUniqueIdentifier())
+{
+ ASSERT(page);
+ addPage(page);
+}
+
+PageGroup::~PageGroup()
+{
+ removeAllUserContent();
+}
+
+typedef HashMap<String, PageGroup*> PageGroupMap;
+static PageGroupMap* pageGroups = 0;
+
+PageGroup* PageGroup::pageGroup(const String& groupName)
+{
+ ASSERT(!groupName.isEmpty());
+
+ if (!pageGroups)
+ pageGroups = new PageGroupMap;
+
+ pair<PageGroupMap::iterator, bool> result = pageGroups->add(groupName, 0);
+
+ if (result.second) {
+ ASSERT(!result.first->second);
+ result.first->second = new PageGroup(groupName);
+ }
+
+ ASSERT(result.first->second);
+ return result.first->second;
+}
+
+void PageGroup::closeLocalStorage()
+{
+#if ENABLE(DOM_STORAGE)
+ if (!pageGroups)
+ return;
+
+ PageGroupMap::iterator end = pageGroups->end();
+
+ for (PageGroupMap::iterator it = pageGroups->begin(); it != end; ++it) {
+ if (it->second->hasLocalStorage())
+ it->second->localStorage()->close();
+ }
+#endif
+}
+
+void PageGroup::addPage(Page* page)
+{
+ ASSERT(page);
+ ASSERT(!m_pages.contains(page));
+ m_pages.add(page);
+}
+
+void PageGroup::removePage(Page* page)
+{
+ ASSERT(page);
+ ASSERT(m_pages.contains(page));
+ m_pages.remove(page);
+}
+
+bool PageGroup::isLinkVisited(LinkHash visitedLinkHash)
+{
+#if PLATFORM(CHROMIUM)
+ // Use Chromium's built-in visited link database.
+ return ChromiumBridge::isLinkVisited(visitedLinkHash);
+#else
+ if (!m_visitedLinksPopulated) {
+ m_visitedLinksPopulated = true;
+ ASSERT(!m_pages.isEmpty());
+ (*m_pages.begin())->chrome()->client()->populateVisitedLinks();
+ }
+ return m_visitedLinkHashes.contains(visitedLinkHash);
+#endif
+}
+
+inline void PageGroup::addVisitedLink(LinkHash hash)
+{
+ ASSERT(shouldTrackVisitedLinks);
+#if !PLATFORM(CHROMIUM)
+ if (!m_visitedLinkHashes.add(hash).second)
+ return;
+#endif
+ Page::visitedStateChanged(this, hash);
+}
+
+void PageGroup::addVisitedLink(const KURL& url)
+{
+ if (!shouldTrackVisitedLinks)
+ return;
+ ASSERT(!url.isEmpty());
+ addVisitedLink(visitedLinkHash(url.string().characters(), url.string().length()));
+}
+
+void PageGroup::addVisitedLink(const UChar* characters, size_t length)
+{
+ if (!shouldTrackVisitedLinks)
+ return;
+ addVisitedLink(visitedLinkHash(characters, length));
+}
+
+void PageGroup::removeVisitedLinks()
+{
+ m_visitedLinksPopulated = false;
+ if (m_visitedLinkHashes.isEmpty())
+ return;
+ m_visitedLinkHashes.clear();
+ Page::allVisitedStateChanged(this);
+}
+
+void PageGroup::removeAllVisitedLinks()
+{
+ Page::removeAllVisitedLinks();
+}
+
+void PageGroup::setShouldTrackVisitedLinks(bool shouldTrack)
+{
+ if (shouldTrackVisitedLinks == shouldTrack)
+ return;
+ shouldTrackVisitedLinks = shouldTrack;
+ if (!shouldTrackVisitedLinks)
+ removeAllVisitedLinks();
+}
+
+#if ENABLE(DOM_STORAGE)
+StorageNamespace* PageGroup::localStorage()
+{
+ if (!m_localStorage) {
+ // Need a page in this page group to query the settings for the local storage database path.
+ // Having these parameters attached to the page settings is unfortunate since these settings are
+ // not per-page (and, in fact, we simply grab the settings from some page at random), but
+ // at this point we're stuck with it.
+ Page* page = *m_pages.begin();
+ const String& path = page->settings()->localStorageDatabasePath();
+ unsigned quota = page->settings()->localStorageQuota();
+ m_localStorage = StorageNamespace::localStorageNamespace(path, quota);
+ }
+
+ return m_localStorage.get();
+}
+#endif
+
+#if ENABLE(INDEXED_DATABASE)
+IndexedDatabase* PageGroup::indexedDatabase()
+{
+ // Do not add page setting based access control here since this object is shared by all pages in
+ // the group and having per-page controls is misleading.
+ if (!m_indexedDatabase)
+ m_indexedDatabase = IndexedDatabase::create();
+ return m_indexedDatabase.get();
+}
+#endif
+
+void PageGroup::addUserScriptToWorld(DOMWrapperWorld* world, const String& source, const KURL& url,
+ PassOwnPtr<Vector<String> > whitelist, PassOwnPtr<Vector<String> > blacklist,
+ UserScriptInjectionTime injectionTime, UserContentInjectedFrames injectedFrames)
+{
+ ASSERT_ARG(world, world);
+
+ OwnPtr<UserScript> userScript(new UserScript(source, url, whitelist, blacklist, injectionTime, injectedFrames));
+ if (!m_userScripts)
+ m_userScripts.set(new UserScriptMap);
+ UserScriptVector*& scriptsInWorld = m_userScripts->add(world, 0).first->second;
+ if (!scriptsInWorld)
+ scriptsInWorld = new UserScriptVector;
+ scriptsInWorld->append(userScript.release());
+}
+
+void PageGroup::addUserStyleSheetToWorld(DOMWrapperWorld* world, const String& source, const KURL& url,
+ PassOwnPtr<Vector<String> > whitelist, PassOwnPtr<Vector<String> > blacklist,
+ UserContentInjectedFrames injectedFrames)
+{
+ ASSERT_ARG(world, world);
+
+ OwnPtr<UserStyleSheet> userStyleSheet(new UserStyleSheet(source, url, whitelist, blacklist, injectedFrames));
+ if (!m_userStyleSheets)
+ m_userStyleSheets.set(new UserStyleSheetMap);
+ UserStyleSheetVector*& styleSheetsInWorld = m_userStyleSheets->add(world, 0).first->second;
+ if (!styleSheetsInWorld)
+ styleSheetsInWorld = new UserStyleSheetVector;
+ styleSheetsInWorld->append(userStyleSheet.release());
+
+ resetUserStyleCacheInAllFrames();
+}
+
+void PageGroup::removeUserScriptFromWorld(DOMWrapperWorld* world, const KURL& url)
+{
+ ASSERT_ARG(world, world);
+
+ if (!m_userScripts)
+ return;
+
+ UserScriptMap::iterator it = m_userScripts->find(world);
+ if (it == m_userScripts->end())
+ return;
+
+ UserScriptVector* scripts = it->second;
+ for (int i = scripts->size() - 1; i >= 0; --i) {
+ if (scripts->at(i)->url() == url)
+ scripts->remove(i);
+ }
+
+ if (!scripts->isEmpty())
+ return;
+
+ delete it->second;
+ m_userScripts->remove(it);
+}
+
+void PageGroup::removeUserStyleSheetFromWorld(DOMWrapperWorld* world, const KURL& url)
+{
+ ASSERT_ARG(world, world);
+
+ if (!m_userStyleSheets)
+ return;
+
+ UserStyleSheetMap::iterator it = m_userStyleSheets->find(world);
+ bool sheetsChanged = false;
+ if (it == m_userStyleSheets->end())
+ return;
+
+ UserStyleSheetVector* stylesheets = it->second;
+ for (int i = stylesheets->size() - 1; i >= 0; --i) {
+ if (stylesheets->at(i)->url() == url) {
+ stylesheets->remove(i);
+ sheetsChanged = true;
+ }
+ }
+
+ if (!sheetsChanged)
+ return;
+
+ if (!stylesheets->isEmpty()) {
+ delete it->second;
+ m_userStyleSheets->remove(it);
+ }
+
+ resetUserStyleCacheInAllFrames();
+}
+
+void PageGroup::removeUserScriptsFromWorld(DOMWrapperWorld* world)
+{
+ ASSERT_ARG(world, world);
+
+ if (!m_userScripts)
+ return;
+
+ UserScriptMap::iterator it = m_userScripts->find(world);
+ if (it == m_userScripts->end())
+ return;
+
+ delete it->second;
+ m_userScripts->remove(it);
+}
+
+void PageGroup::removeUserStyleSheetsFromWorld(DOMWrapperWorld* world)
+{
+ ASSERT_ARG(world, world);
+
+ if (!m_userStyleSheets)
+ return;
+
+ UserStyleSheetMap::iterator it = m_userStyleSheets->find(world);
+ if (it == m_userStyleSheets->end())
+ return;
+
+ delete it->second;
+ m_userStyleSheets->remove(it);
+
+ resetUserStyleCacheInAllFrames();
+}
+
+void PageGroup::removeAllUserContent()
+{
+ if (m_userScripts) {
+ deleteAllValues(*m_userScripts);
+ m_userScripts.clear();
+ }
+
+ if (m_userStyleSheets) {
+ deleteAllValues(*m_userStyleSheets);
+ m_userStyleSheets.clear();
+ resetUserStyleCacheInAllFrames();
+ }
+}
+
+void PageGroup::resetUserStyleCacheInAllFrames()
+{
+#if !PLATFORM(CHROMIUM)
+ // Clear our cached sheets and have them just reparse.
+ HashSet<Page*>::const_iterator end = m_pages.end();
+ for (HashSet<Page*>::const_iterator it = m_pages.begin(); it != end; ++it) {
+ for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree()->traverseNext())
+ frame->document()->clearPageGroupUserSheets();
+ }
+#endif
+}
+
+} // namespace WebCore