--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/page/Settings.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,619 @@
+/*
+ * Copyright (C) 2006, 2007, 2008, 2009 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 COMPUTER, 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 COMPUTER, 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 "Settings.h"
+
+#include "BackForwardList.h"
+#include "Database.h"
+#include "Frame.h"
+#include "FrameTree.h"
+#include "FrameView.h"
+#include "HistoryItem.h"
+#include "Page.h"
+#include "PageCache.h"
+#include "StorageMap.h"
+#include <limits>
+
+using namespace std;
+
+namespace WebCore {
+
+static void setNeedsReapplyStylesInAllFrames(Page* page)
+{
+    for (Frame* frame = page->mainFrame(); frame; frame = frame->tree()->traverseNext())
+        frame->setNeedsReapplyStyles();
+}
+
+#if USE(SAFARI_THEME)
+bool Settings::gShouldPaintNativeControls = true;
+#endif
+
+#if PLATFORM(WIN) || (OS(WINDOWS) && PLATFORM(WX))
+bool Settings::gShouldUseHighResolutionTimers = true;
+#endif
+
+Settings::Settings(Page* page)
+    : m_page(page)
+    , m_editableLinkBehavior(EditableLinkDefaultBehavior)
+    , m_textDirectionSubmenuInclusionBehavior(TextDirectionSubmenuAutomaticallyIncluded)
+    , m_minimumFontSize(0)
+    , m_minimumLogicalFontSize(0)
+    , m_defaultFontSize(0)
+    , m_defaultFixedFontSize(0)
+    , m_maximumDecodedImageSize(numeric_limits<size_t>::max())
+#if ENABLE(DOM_STORAGE)            
+    , m_localStorageQuota(5 * 1024 * 1024)  // Suggested by the HTML5 spec.
+    , m_sessionStorageQuota(StorageMap::noQuota)
+#endif
+    , m_pluginAllowedRunTime(numeric_limits<unsigned>::max())
+    , m_zoomMode(ZoomPage)
+    , m_isSpatialNavigationEnabled(false)
+    , m_isJavaEnabled(false)
+    , m_loadsImagesAutomatically(false)
+    , m_privateBrowsingEnabled(false)
+    , m_caretBrowsingEnabled(false)
+    , m_areImagesEnabled(true)
+    , m_isMediaEnabled(true)
+    , m_arePluginsEnabled(false)
+    , m_localStorageEnabled(false)
+    , m_isJavaScriptEnabled(false)
+    , m_isWebSecurityEnabled(true)
+    , m_allowUniversalAccessFromFileURLs(true)
+    , m_allowFileAccessFromFileURLs(true)
+    , m_javaScriptCanOpenWindowsAutomatically(false)
+    , m_javaScriptCanAccessClipboard(false)
+    , m_shouldPrintBackgrounds(false)
+    , m_textAreasAreResizable(false)
+#if ENABLE(DASHBOARD_SUPPORT)
+    , m_usesDashboardBackwardCompatibilityMode(false)
+#endif
+    , m_needsAdobeFrameReloadingQuirk(false)
+    , m_needsKeyboardEventDisambiguationQuirks(false)
+    , m_treatsAnyTextCSSLinkAsStylesheet(false)
+    , m_needsLeopardMailQuirks(false)
+    , m_needsTigerMailQuirks(false)
+    , m_isDOMPasteAllowed(false)
+    , m_shrinksStandaloneImagesToFit(true)
+    , m_usesPageCache(false)
+    , m_showsURLsInToolTips(false)
+    , m_forceFTPDirectoryListings(false)
+    , m_developerExtrasEnabled(false)
+    , m_authorAndUserStylesEnabled(true)
+    , m_needsSiteSpecificQuirks(false)
+    , m_fontRenderingMode(0)
+    , m_frameFlatteningEnabled(false)
+    , m_webArchiveDebugModeEnabled(false)
+    , m_localFileContentSniffingEnabled(false)
+    , m_inApplicationChromeMode(false)
+    , m_offlineWebApplicationCacheEnabled(false)
+    , m_shouldPaintCustomScrollbars(false)
+    , m_enforceCSSMIMETypeInStrictMode(true)
+    , m_usesEncodingDetector(false)
+    , m_allowScriptsToCloseWindows(false)
+    , m_editingBehaviorType(
+#if PLATFORM(MAC) || (PLATFORM(CHROMIUM) && OS(DARWIN))
+        // (PLATFORM(MAC) is always false in Chromium, hence the extra condition.)
+        EditingMacBehavior
+#else
+        EditingWindowsBehavior
+#endif
+        )
+    // FIXME: This should really be disabled by default as it makes platforms that don't support the feature download files
+    // they can't use by. Leaving enabled for now to not change existing behavior.
+    , m_downloadableBinaryFontsEnabled(true)
+    , m_xssAuditorEnabled(false)
+    , m_acceleratedCompositingEnabled(true)
+    , m_showDebugBorders(false)
+    , m_showRepaintCounter(false)
+    , m_experimentalNotificationsEnabled(false)
+    , m_webGLEnabled(false)
+    , m_loadDeferringEnabled(true)
+    , m_tiledBackingStoreEnabled(false)
+    , m_html5ParserEnabled(false)
+    , m_html5TreeBuilderEnabled(false) // Will be deleted soon, do not use.
+    , m_paginateDuringLayoutEnabled(false)
+    , m_dnsPrefetchingEnabled(true)
+    , m_memoryInfoEnabled(false)
+{
+    // A Frame may not have been created yet, so we initialize the AtomicString 
+    // hash before trying to use it.
+    AtomicString::init();
+}
+
+void Settings::setStandardFontFamily(const AtomicString& standardFontFamily)
+{
+    if (standardFontFamily == m_standardFontFamily)
+        return;
+
+    m_standardFontFamily = standardFontFamily;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setFixedFontFamily(const AtomicString& fixedFontFamily)
+{
+    if (m_fixedFontFamily == fixedFontFamily)
+        return;
+        
+    m_fixedFontFamily = fixedFontFamily;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setSerifFontFamily(const AtomicString& serifFontFamily)
+{
+    if (m_serifFontFamily == serifFontFamily)
+        return;
+        
+    m_serifFontFamily = serifFontFamily;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setSansSerifFontFamily(const AtomicString& sansSerifFontFamily)
+{
+    if (m_sansSerifFontFamily == sansSerifFontFamily)
+        return;
+        
+    m_sansSerifFontFamily = sansSerifFontFamily; 
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setCursiveFontFamily(const AtomicString& cursiveFontFamily)
+{
+    if (m_cursiveFontFamily == cursiveFontFamily)
+        return;
+        
+    m_cursiveFontFamily = cursiveFontFamily;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setFantasyFontFamily(const AtomicString& fantasyFontFamily)
+{
+    if (m_fantasyFontFamily == fantasyFontFamily)
+        return;
+        
+    m_fantasyFontFamily = fantasyFontFamily;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setMinimumFontSize(int minimumFontSize)
+{
+    if (m_minimumFontSize == minimumFontSize)
+        return;
+
+    m_minimumFontSize = minimumFontSize;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setMinimumLogicalFontSize(int minimumLogicalFontSize)
+{
+    if (m_minimumLogicalFontSize == minimumLogicalFontSize)
+        return;
+
+    m_minimumLogicalFontSize = minimumLogicalFontSize;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setDefaultFontSize(int defaultFontSize)
+{
+    if (m_defaultFontSize == defaultFontSize)
+        return;
+
+    m_defaultFontSize = defaultFontSize;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setDefaultFixedFontSize(int defaultFontSize)
+{
+    if (m_defaultFixedFontSize == defaultFontSize)
+        return;
+
+    m_defaultFixedFontSize = defaultFontSize;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setLoadsImagesAutomatically(bool loadsImagesAutomatically)
+{
+    m_loadsImagesAutomatically = loadsImagesAutomatically;
+}
+
+void Settings::setJavaScriptEnabled(bool isJavaScriptEnabled)
+{
+    m_isJavaScriptEnabled = isJavaScriptEnabled;
+}
+
+void Settings::setWebSecurityEnabled(bool isWebSecurityEnabled)
+{
+    m_isWebSecurityEnabled = isWebSecurityEnabled;
+}
+
+void Settings::setAllowUniversalAccessFromFileURLs(bool allowUniversalAccessFromFileURLs)
+{
+    m_allowUniversalAccessFromFileURLs = allowUniversalAccessFromFileURLs;
+}
+
+void Settings::setAllowFileAccessFromFileURLs(bool allowFileAccessFromFileURLs)
+{
+    m_allowFileAccessFromFileURLs = allowFileAccessFromFileURLs;
+}
+
+void Settings::setSpatialNavigationEnabled(bool isSpatialNavigationEnabled)
+{
+    m_isSpatialNavigationEnabled = isSpatialNavigationEnabled;
+}
+
+void Settings::setJavaEnabled(bool isJavaEnabled)
+{
+    m_isJavaEnabled = isJavaEnabled;
+}
+
+void Settings::setImagesEnabled(bool areImagesEnabled)
+{
+    m_areImagesEnabled = areImagesEnabled;
+}
+
+void Settings::setMediaEnabled(bool isMediaEnabled)
+{
+    m_isMediaEnabled = isMediaEnabled;
+}
+
+void Settings::setPluginsEnabled(bool arePluginsEnabled)
+{
+    m_arePluginsEnabled = arePluginsEnabled;
+}
+
+void Settings::setLocalStorageEnabled(bool localStorageEnabled)
+{
+    m_localStorageEnabled = localStorageEnabled;
+}
+
+#if ENABLE(DOM_STORAGE)        
+void Settings::setLocalStorageQuota(unsigned localStorageQuota)
+{
+    m_localStorageQuota = localStorageQuota;
+}
+
+void Settings::setSessionStorageQuota(unsigned sessionStorageQuota)
+{
+    m_sessionStorageQuota = sessionStorageQuota;
+}
+#endif
+
+void Settings::setPrivateBrowsingEnabled(bool privateBrowsingEnabled)
+{
+    if (m_privateBrowsingEnabled == privateBrowsingEnabled)
+        return;
+
+    m_privateBrowsingEnabled = privateBrowsingEnabled;
+    m_page->privateBrowsingStateChanged();
+}
+
+void Settings::setJavaScriptCanOpenWindowsAutomatically(bool javaScriptCanOpenWindowsAutomatically)
+{
+    m_javaScriptCanOpenWindowsAutomatically = javaScriptCanOpenWindowsAutomatically;
+}
+
+void Settings::setJavaScriptCanAccessClipboard(bool javaScriptCanAccessClipboard)
+{
+    m_javaScriptCanAccessClipboard = javaScriptCanAccessClipboard;
+}
+
+void Settings::setDefaultTextEncodingName(const String& defaultTextEncodingName)
+{
+    m_defaultTextEncodingName = defaultTextEncodingName;
+}
+
+void Settings::setUserStyleSheetLocation(const KURL& userStyleSheetLocation)
+{
+    if (m_userStyleSheetLocation == userStyleSheetLocation)
+        return;
+
+    m_userStyleSheetLocation = userStyleSheetLocation;
+
+    m_page->userStyleSheetLocationChanged();
+}
+
+void Settings::setShouldPrintBackgrounds(bool shouldPrintBackgrounds)
+{
+    m_shouldPrintBackgrounds = shouldPrintBackgrounds;
+}
+
+void Settings::setTextAreasAreResizable(bool textAreasAreResizable)
+{
+    if (m_textAreasAreResizable == textAreasAreResizable)
+        return;
+
+    m_textAreasAreResizable = textAreasAreResizable;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setEditableLinkBehavior(EditableLinkBehavior editableLinkBehavior)
+{
+    m_editableLinkBehavior = editableLinkBehavior;
+}
+
+void Settings::setTextDirectionSubmenuInclusionBehavior(TextDirectionSubmenuInclusionBehavior behavior)
+{
+    m_textDirectionSubmenuInclusionBehavior = behavior;
+}
+
+#if ENABLE(DASHBOARD_SUPPORT)
+void Settings::setUsesDashboardBackwardCompatibilityMode(bool usesDashboardBackwardCompatibilityMode)
+{
+    m_usesDashboardBackwardCompatibilityMode = usesDashboardBackwardCompatibilityMode;
+}
+#endif
+
+// FIXME: This quirk is needed because of Radar 4674537 and 5211271. We need to phase it out once Adobe
+// can fix the bug from their end.
+void Settings::setNeedsAdobeFrameReloadingQuirk(bool shouldNotReloadIFramesForUnchangedSRC)
+{
+    m_needsAdobeFrameReloadingQuirk = shouldNotReloadIFramesForUnchangedSRC;
+}
+
+// This is a quirk we are pro-actively applying to old applications. It changes keyboard event dispatching,
+// making keyIdentifier available on keypress events, making charCode available on keydown/keyup events,
+// and getting keypress dispatched in more cases.
+void Settings::setNeedsKeyboardEventDisambiguationQuirks(bool needsQuirks)
+{
+    m_needsKeyboardEventDisambiguationQuirks = needsQuirks;
+}
+
+void Settings::setTreatsAnyTextCSSLinkAsStylesheet(bool treatsAnyTextCSSLinkAsStylesheet)
+{
+    m_treatsAnyTextCSSLinkAsStylesheet = treatsAnyTextCSSLinkAsStylesheet;
+}
+
+void Settings::setNeedsLeopardMailQuirks(bool needsQuirks)
+{
+    m_needsLeopardMailQuirks = needsQuirks;
+}
+
+void Settings::setNeedsTigerMailQuirks(bool needsQuirks)
+{
+    m_needsTigerMailQuirks = needsQuirks;
+}
+    
+void Settings::setDOMPasteAllowed(bool DOMPasteAllowed)
+{
+    m_isDOMPasteAllowed = DOMPasteAllowed;
+}
+
+void Settings::setUsesPageCache(bool usesPageCache)
+{
+    if (m_usesPageCache == usesPageCache)
+        return;
+        
+    m_usesPageCache = usesPageCache;
+    if (!m_usesPageCache) {
+        HistoryItemVector& historyItems = m_page->backForwardList()->entries();
+        for (unsigned i = 0; i < historyItems.size(); i++)
+            pageCache()->remove(historyItems[i].get());
+        pageCache()->releaseAutoreleasedPagesNow();
+    }
+}
+
+void Settings::setShrinksStandaloneImagesToFit(bool shrinksStandaloneImagesToFit)
+{
+    m_shrinksStandaloneImagesToFit = shrinksStandaloneImagesToFit;
+}
+
+void Settings::setShowsURLsInToolTips(bool showsURLsInToolTips)
+{
+    m_showsURLsInToolTips = showsURLsInToolTips;
+}
+
+void Settings::setFTPDirectoryTemplatePath(const String& path)
+{
+    m_ftpDirectoryTemplatePath = path;
+}
+
+void Settings::setForceFTPDirectoryListings(bool force)
+{
+    m_forceFTPDirectoryListings = force;
+}
+
+void Settings::setDeveloperExtrasEnabled(bool developerExtrasEnabled)
+{
+    m_developerExtrasEnabled = developerExtrasEnabled;
+}
+
+void Settings::setAuthorAndUserStylesEnabled(bool authorAndUserStylesEnabled)
+{
+    if (m_authorAndUserStylesEnabled == authorAndUserStylesEnabled)
+        return;
+
+    m_authorAndUserStylesEnabled = authorAndUserStylesEnabled;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setFontRenderingMode(FontRenderingMode mode)
+{
+    if (fontRenderingMode() == mode)
+        return;
+    m_fontRenderingMode = mode;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+FontRenderingMode Settings::fontRenderingMode() const
+{
+    return static_cast<FontRenderingMode>(m_fontRenderingMode);
+}
+
+void Settings::setNeedsSiteSpecificQuirks(bool needsQuirks)
+{
+    m_needsSiteSpecificQuirks = needsQuirks;
+}
+
+void Settings::setFrameFlatteningEnabled(bool frameFlatteningEnabled)
+{
+    m_frameFlatteningEnabled = frameFlatteningEnabled;
+}
+
+void Settings::setWebArchiveDebugModeEnabled(bool enabled)
+{
+    m_webArchiveDebugModeEnabled = enabled;
+}
+
+void Settings::setLocalFileContentSniffingEnabled(bool enabled)
+{
+    m_localFileContentSniffingEnabled = enabled;
+}
+
+void Settings::setLocalStorageDatabasePath(const String& path)
+{
+    m_localStorageDatabasePath = path;
+}
+
+void Settings::setApplicationChromeMode(bool mode)
+{
+    m_inApplicationChromeMode = mode;
+}
+
+void Settings::setOfflineWebApplicationCacheEnabled(bool enabled)
+{
+    m_offlineWebApplicationCacheEnabled = enabled;
+}
+
+void Settings::setShouldPaintCustomScrollbars(bool shouldPaintCustomScrollbars)
+{
+    m_shouldPaintCustomScrollbars = shouldPaintCustomScrollbars;
+}
+
+void Settings::setZoomMode(ZoomMode mode)
+{
+    if (mode == m_zoomMode)
+        return;
+    
+    m_zoomMode = mode;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setEnforceCSSMIMETypeInStrictMode(bool enforceCSSMIMETypeInStrictMode)
+{
+    m_enforceCSSMIMETypeInStrictMode = enforceCSSMIMETypeInStrictMode;
+}
+
+#if USE(SAFARI_THEME)
+void Settings::setShouldPaintNativeControls(bool shouldPaintNativeControls)
+{
+    gShouldPaintNativeControls = shouldPaintNativeControls;
+}
+#endif
+
+void Settings::setUsesEncodingDetector(bool usesEncodingDetector)
+{
+    m_usesEncodingDetector = usesEncodingDetector;
+}
+
+void Settings::setDNSPrefetchingEnabled(bool dnsPrefetchingEnabled)
+{
+    m_dnsPrefetchingEnabled = dnsPrefetchingEnabled;
+}
+
+void Settings::setAllowScriptsToCloseWindows(bool allowScriptsToCloseWindows)
+{
+    m_allowScriptsToCloseWindows = allowScriptsToCloseWindows;
+}
+
+void Settings::setCaretBrowsingEnabled(bool caretBrowsingEnabled)
+{
+    m_caretBrowsingEnabled = caretBrowsingEnabled;
+}
+
+void Settings::setDownloadableBinaryFontsEnabled(bool downloadableBinaryFontsEnabled)
+{
+    m_downloadableBinaryFontsEnabled = downloadableBinaryFontsEnabled;
+}
+
+void Settings::setXSSAuditorEnabled(bool xssAuditorEnabled)
+{
+    m_xssAuditorEnabled = xssAuditorEnabled;
+}
+
+void Settings::setAcceleratedCompositingEnabled(bool enabled)
+{
+    if (m_acceleratedCompositingEnabled == enabled)
+        return;
+        
+    m_acceleratedCompositingEnabled = enabled;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setShowDebugBorders(bool enabled)
+{
+    if (m_showDebugBorders == enabled)
+        return;
+        
+    m_showDebugBorders = enabled;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setShowRepaintCounter(bool enabled)
+{
+    if (m_showRepaintCounter == enabled)
+        return;
+        
+    m_showRepaintCounter = enabled;
+    setNeedsReapplyStylesInAllFrames(m_page);
+}
+
+void Settings::setExperimentalNotificationsEnabled(bool enabled)
+{
+    m_experimentalNotificationsEnabled = enabled;
+}
+
+void Settings::setPluginAllowedRunTime(unsigned runTime)
+{
+    m_pluginAllowedRunTime = runTime;
+    m_page->pluginAllowedRunTimeChanged();
+}
+
+#if PLATFORM(WIN) || (OS(WINDOWS) && PLATFORM(WX))
+void Settings::setShouldUseHighResolutionTimers(bool shouldUseHighResolutionTimers)
+{
+    gShouldUseHighResolutionTimers = shouldUseHighResolutionTimers;
+}
+#endif
+
+void Settings::setWebGLEnabled(bool enabled)
+{
+    m_webGLEnabled = enabled;
+}
+
+void Settings::setLoadDeferringEnabled(bool enabled)
+{
+    m_loadDeferringEnabled = enabled;
+}
+
+void Settings::setTiledBackingStoreEnabled(bool enabled)
+{
+    m_tiledBackingStoreEnabled = enabled;
+#if ENABLE(TILED_BACKING_STORE)
+    if (m_page->mainFrame())
+        m_page->mainFrame()->setTiledBackingStoreEnabled(enabled);
+#endif
+}
+
+} // namespace WebCore