/* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include "config.h" #include "qwebsettings.h" #include "qwebpage.h" #include "qwebpage_p.h" #include "qwebplugindatabase.h" #include "Cache.h" #include "CrossOriginPreflightResultCache.h" #include "FontCache.h" #include "Page.h" #include "PageCache.h" #include "Settings.h" #include "KURL.h" #include "PlatformString.h" #include "IconDatabase.h" #include "Image.h" #include "IntSize.h" #include "ApplicationCacheStorage.h" #include "DatabaseTracker.h" #include "FileSystem.h" #include #include #include #include #include #include #include class QWebSettingsPrivate { public: QWebSettingsPrivate(WebCore::Settings* wcSettings = 0) : settings(wcSettings) { } QHash fontFamilies; QHash fontSizes; QHash attributes; QUrl userStyleSheetLocation; QString defaultTextEncoding; QString localStoragePath; QString offlineWebApplicationCachePath; qint64 offlineStorageDefaultQuota; float printingMinimumShrinkFactor; float printingMaximumShrinkFactor; void apply(); WebCore::Settings* settings; }; typedef QHash WebGraphicHash; Q_GLOBAL_STATIC(WebGraphicHash, _graphics) static WebGraphicHash* graphics() { WebGraphicHash* hash = _graphics(); if (hash->isEmpty()) { hash->insert(QWebSettings::MissingImageGraphic, QPixmap(QLatin1String(":webkit/resources/missingImage.png"))); hash->insert(QWebSettings::MissingPluginGraphic, QPixmap(QLatin1String(":webkit/resources/nullPlugin.png"))); hash->insert(QWebSettings::DefaultFrameIconGraphic, QPixmap(QLatin1String(":webkit/resources/urlIcon.png"))); hash->insert(QWebSettings::TextAreaSizeGripCornerGraphic, QPixmap(QLatin1String(":webkit/resources/textAreaResizeCorner.png"))); } return hash; } Q_GLOBAL_STATIC(QList, allSettings); void QWebSettingsPrivate::apply() { if (settings) { settings->setTextAreasAreResizable(true); QWebSettingsPrivate* global = QWebSettings::globalSettings()->d; QString family = fontFamilies.value(QWebSettings::StandardFont, global->fontFamilies.value(QWebSettings::StandardFont)); settings->setStandardFontFamily(family); family = fontFamilies.value(QWebSettings::FixedFont, global->fontFamilies.value(QWebSettings::FixedFont)); settings->setFixedFontFamily(family); family = fontFamilies.value(QWebSettings::SerifFont, global->fontFamilies.value(QWebSettings::SerifFont)); settings->setSerifFontFamily(family); family = fontFamilies.value(QWebSettings::SansSerifFont, global->fontFamilies.value(QWebSettings::SansSerifFont)); settings->setSansSerifFontFamily(family); family = fontFamilies.value(QWebSettings::CursiveFont, global->fontFamilies.value(QWebSettings::CursiveFont)); settings->setCursiveFontFamily(family); family = fontFamilies.value(QWebSettings::FantasyFont, global->fontFamilies.value(QWebSettings::FantasyFont)); settings->setFantasyFontFamily(family); int size = fontSizes.value(QWebSettings::MinimumFontSize, global->fontSizes.value(QWebSettings::MinimumFontSize)); settings->setMinimumFontSize(size); size = fontSizes.value(QWebSettings::MinimumLogicalFontSize, global->fontSizes.value(QWebSettings::MinimumLogicalFontSize)); settings->setMinimumLogicalFontSize(size); size = fontSizes.value(QWebSettings::DefaultFontSize, global->fontSizes.value(QWebSettings::DefaultFontSize)); settings->setDefaultFontSize(size); size = fontSizes.value(QWebSettings::DefaultFixedFontSize, global->fontSizes.value(QWebSettings::DefaultFixedFontSize)); settings->setDefaultFixedFontSize(size); bool value = attributes.value(QWebSettings::AutoLoadImages, global->attributes.value(QWebSettings::AutoLoadImages)); settings->setLoadsImagesAutomatically(value); value = attributes.value(QWebSettings::JavascriptEnabled, global->attributes.value(QWebSettings::JavascriptEnabled)); settings->setJavaScriptEnabled(value); value = attributes.value(QWebSettings::JavascriptCanOpenWindows, global->attributes.value(QWebSettings::JavascriptCanOpenWindows)); settings->setJavaScriptCanOpenWindowsAutomatically(value); value = attributes.value(QWebSettings::JavaEnabled, global->attributes.value(QWebSettings::JavaEnabled)); settings->setJavaEnabled(value); value = attributes.value(QWebSettings::PluginsEnabled, global->attributes.value(QWebSettings::PluginsEnabled)); settings->setPluginsEnabled(value); value = attributes.value(QWebSettings::PrivateBrowsingEnabled, global->attributes.value(QWebSettings::PrivateBrowsingEnabled)); settings->setPrivateBrowsingEnabled(value); value = attributes.value(QWebSettings::JavascriptCanAccessClipboard, global->attributes.value(QWebSettings::JavascriptCanAccessClipboard)); settings->setDOMPasteAllowed(value); value = attributes.value(QWebSettings::DeveloperExtrasEnabled, global->attributes.value(QWebSettings::DeveloperExtrasEnabled)); settings->setDeveloperExtrasEnabled(value); QUrl location = !userStyleSheetLocation.isEmpty() ? userStyleSheetLocation : global->userStyleSheetLocation; settings->setUserStyleSheetLocation(WebCore::KURL(location)); QString encoding = !defaultTextEncoding.isEmpty() ? defaultTextEncoding: global->defaultTextEncoding; settings->setDefaultTextEncodingName(encoding); QString storagePath = !localStoragePath.isEmpty() ? localStoragePath : global->localStoragePath; settings->setLocalStorageDatabasePath(storagePath); float minimumShrinkFactor = printingMinimumShrinkFactor > 0.0f ? printingMinimumShrinkFactor : global->printingMinimumShrinkFactor; settings->setPrintingMinimumShrinkFactor(minimumShrinkFactor); float maximumShrinkFactor = printingMaximumShrinkFactor > 0.0f ? printingMaximumShrinkFactor : global->printingMaximumShrinkFactor; settings->setPrintingMaximumShrinkFactor(maximumShrinkFactor); value = attributes.value(QWebSettings::ZoomTextOnly, global->attributes.value(QWebSettings::ZoomTextOnly)); settings->setZoomsTextOnly(value); value = attributes.value(QWebSettings::PrintElementBackgrounds, global->attributes.value(QWebSettings::PrintElementBackgrounds)); settings->setShouldPrintBackgrounds(value); value = attributes.value(QWebSettings::OfflineStorageDatabaseEnabled, global->attributes.value(QWebSettings::OfflineStorageDatabaseEnabled)); settings->setDatabasesEnabled(value); value = attributes.value(QWebSettings::OfflineWebApplicationCacheEnabled, global->attributes.value(QWebSettings::OfflineWebApplicationCacheEnabled)); settings->setOfflineWebApplicationCacheEnabled(value); value = attributes.value(QWebSettings::LocalStorageEnabled, global->attributes.value(QWebSettings::LocalStorageEnabled)); settings->setLocalStorageEnabled(value); value = attributes.value(QWebSettings::LocalContentCanAccessRemoteUrls, global->attributes.value(QWebSettings::LocalContentCanAccessRemoteUrls)); settings->setAllowUniversalAccessFromFileURLs(value); value = attributes.value(QWebSettings::SessionStorageEnabled, global->attributes.value(QWebSettings::SessionStorageEnabled)); settings->setSessionStorageEnabled(value); } else { QList settings = *::allSettings(); for (int i = 0; i < settings.count(); ++i) settings[i]->apply(); } } /*! Returns the global settings object. Any setting changed on the default object is automatically applied to all QWebPage instances where the particular setting is not overriden already. */ QWebSettings* QWebSettings::globalSettings() { static QWebSettings* global = 0; if (!global) global = new QWebSettings; return global; } /*! \class QWebSettings \since 4.4 \brief The QWebSettings class provides an object to store the settings used by QWebPage and QWebFrame. \inmodule QtWebKit Each QWebPage object has its own QWebSettings object, which configures the settings for that page. If a setting is not configured, then it is looked up in the global settings object, which can be accessed using globalSettings(). QWebSettings allows configuration of browser properties, such as font sizes and families, the location of a custom style sheet, and generic attributes like JavaScript and plugins. Individual attributes are set using the setAttribute() function. The \l{QWebSettings::WebAttribute}{WebAttribute} enum further describes each attribute. QWebSettings also configures global properties such as the Web page memory cache and the Web page icon database, local database storage and offline applications storage. \section1 Enabling Plugins Support for browser plugins can enabled by setting the \l{QWebSettings::PluginsEnabled}{PluginsEnabled} attribute. For many applications, this attribute is enabled for all pages by setting it on the \l{globalSettings()}{global settings object}. \section1 Web Application Support WebKit provides support for features specified in \l{HTML 5} that improve the performance and capabilities of Web applications. These include client-side (offline) storage and the use of a Web application cache. Client-side (offline) storage is an improvement over the use of cookies to store persistent data in Web applications. Applications can configure and enable the use of an offline storage database by calling the setOfflineStoragePath() with an appropriate file path, and can limit the quota for each application by calling setOfflineStorageDefaultQuota(). \sa QWebPage::settings(), QWebView::settings(), {Browser} */ /*! \enum QWebSettings::FontFamily This enum describes the generic font families defined by CSS 2. For more information see the \l{http://www.w3.org/TR/REC-CSS2/fonts.html#generic-font-families}{CSS standard}. \value StandardFont \value FixedFont \value SerifFont \value SansSerifFont \value CursiveFont \value FantasyFont */ /*! \enum QWebSettings::FontSize This enum describes the font sizes configurable through QWebSettings. \value MinimumFontSize The hard minimum font size. \value MinimumLogicalFontSize The minimum logical font size that is applied after zooming with QWebFrame's textSizeMultiplier(). \value DefaultFontSize The default font size for regular text. \value DefaultFixedFontSize The default font size for fixed-pitch text. */ /*! \enum QWebSettings::WebGraphic This enums describes the standard graphical elements used in webpages. \value MissingImageGraphic The replacement graphic shown when an image could not be loaded. \value MissingPluginGraphic The replacement graphic shown when a plugin could not be loaded. \value DefaultFrameIconGraphic The default icon for QWebFrame::icon(). \value TextAreaSizeGripCornerGraphic The graphic shown for the size grip of text areas. */ /*! \enum QWebSettings::WebAttribute This enum describes various attributes that are configurable through QWebSettings. \value AutoLoadImages Specifies whether images are automatically loaded in web pages. \value DnsPrefetchEnabled Specifies whether QtWebkit will try to pre-fetch DNS entries to speed up browsing. This only works as a global attribute. Only for Qt 4.6 and later. \value JavascriptEnabled Enables or disables the running of JavaScript programs. \value JavaEnabled Enables or disables Java applets. Currently Java applets are not supported. \value PluginsEnabled Enables or disables plugins in Web pages. \value PrivateBrowsingEnabled Private browsing prevents WebKit from recording visited pages in the history and storing web page icons. \value JavascriptCanOpenWindows Specifies whether JavaScript programs can open new windows. \value JavascriptCanAccessClipboard Specifies whether JavaScript programs can read or write to the clipboard. \value DeveloperExtrasEnabled Enables extra tools for Web developers. Currently this enables the "Inspect" element in the context menu as well as the use of QWebInspector which controls the WebKit WebInspector for web site debugging. \value LinksIncludedInFocusChain Specifies whether hyperlinks should be included in the keyboard focus chain. \value ZoomTextOnly Specifies whether the zoom factor on a frame applies to only the text or all content. \value PrintElementBackgrounds Specifies whether the background color and images are also drawn when the page is printed. \value OfflineStorageDatabaseEnabled Specifies whether support for the HTML 5 offline storage feature is enabled or not. Disabled by default. \value OfflineWebApplicationCacheEnabled Specifies whether support for the HTML 5 web application cache feature is enabled or not. Disabled by default. \value LocalStorageEnabled Specifies whether support for the HTML 5 local storage feature is enabled or not. Disabled by default. \value LocalContentCanAccessRemoteUrls Specifies whether locally loaded documents are allowed to access remote urls. \value SessionStorageEnabled Specifies whether support for the HTML 5 session storage feature is enabled or not. Enabled by default. */ /*! \internal */ QWebSettings::QWebSettings() : d(new QWebSettingsPrivate) { // Initialize our global defaults d->fontSizes.insert(QWebSettings::MinimumFontSize, 0); d->fontSizes.insert(QWebSettings::MinimumLogicalFontSize, 0); d->fontSizes.insert(QWebSettings::DefaultFontSize, 16); d->fontSizes.insert(QWebSettings::DefaultFixedFontSize, 13); d->fontFamilies.insert(QWebSettings::StandardFont, QLatin1String("Arial")); d->fontFamilies.insert(QWebSettings::FixedFont, QLatin1String("Courier New")); d->fontFamilies.insert(QWebSettings::SerifFont, QLatin1String("Times New Roman")); d->fontFamilies.insert(QWebSettings::SansSerifFont, QLatin1String("Arial")); d->fontFamilies.insert(QWebSettings::CursiveFont, QLatin1String("Arial")); d->fontFamilies.insert(QWebSettings::FantasyFont, QLatin1String("Arial")); d->attributes.insert(QWebSettings::AutoLoadImages, true); d->attributes.insert(QWebSettings::DnsPrefetchEnabled, false); d->attributes.insert(QWebSettings::JavascriptEnabled, true); d->attributes.insert(QWebSettings::LinksIncludedInFocusChain, true); d->attributes.insert(QWebSettings::ZoomTextOnly, false); d->attributes.insert(QWebSettings::PrintElementBackgrounds, true); d->attributes.insert(QWebSettings::OfflineStorageDatabaseEnabled, false); d->attributes.insert(QWebSettings::OfflineWebApplicationCacheEnabled, false); d->attributes.insert(QWebSettings::LocalStorageEnabled, false); d->attributes.insert(QWebSettings::LocalContentCanAccessRemoteUrls, false); d->attributes.insert(QWebSettings::SessionStorageEnabled, true); d->offlineStorageDefaultQuota = 5 * 1024 * 1024; d->defaultTextEncoding = QLatin1String("iso-8859-1"); d->printingMinimumShrinkFactor = 0.0f; d->printingMaximumShrinkFactor = 0.0f; } /*! \internal */ QWebSettings::QWebSettings(WebCore::Settings* settings) : d(new QWebSettingsPrivate(settings)) { d->settings = settings; d->apply(); allSettings()->append(d); } /*! \internal */ QWebSettings::~QWebSettings() { if (d->settings) allSettings()->removeAll(d); delete d; } /*! Sets the font size for \a type to \a size. */ void QWebSettings::setFontSize(FontSize type, int size) { d->fontSizes.insert(type, size); d->apply(); } /*! Returns the default font size for \a type. */ int QWebSettings::fontSize(FontSize type) const { int defaultValue = 0; if (d->settings) { QWebSettingsPrivate* global = QWebSettings::globalSettings()->d; defaultValue = global->fontSizes.value(type); } return d->fontSizes.value(type, defaultValue); } /*! Resets the font size for \a type to the size specified in the global settings object. This function has no effect on the global QWebSettings instance. */ void QWebSettings::resetFontSize(FontSize type) { if (d->settings) { d->fontSizes.remove(type); d->apply(); } } /*! Specifies the location of a user stylesheet to load with every web page. The \a location must be either a path on the local filesystem, or a data URL with UTF-8 and Base64 encoded data, such as: "data:text/css;charset=utf-8;base64,cCB7IGJhY2tncm91bmQtY29sb3I6IHJlZCB9Ow==;" \sa userStyleSheetUrl() */ void QWebSettings::setUserStyleSheetUrl(const QUrl& location) { d->userStyleSheetLocation = location; d->apply(); } /*! Returns the location of the user stylesheet. \sa setUserStyleSheetUrl() */ QUrl QWebSettings::userStyleSheetUrl() const { return d->userStyleSheetLocation; } /*! \since 4.6 Specifies the default text encoding system. The \a encoding, must be a string describing an encoding such as "utf-8", "iso-8859-1", etc. If left empty a default value will be used. For a more extensive list of encoding names see \l{QTextCodec} \sa defaultTextEncoding() */ void QWebSettings::setDefaultTextEncoding(const QString& encoding) { d->defaultTextEncoding = encoding; d->apply(); } /*! \since 4.6 Returns the default text encoding. \sa setDefaultTextEncoding() */ QString QWebSettings::defaultTextEncoding() const { return d->defaultTextEncoding; } /*! \since 4.7 Specifies minimum shrink fator allowed for printing. If set to 0 a default value is used. When printing, content will be shrunk to reduce page usage, it will reduced by a factor between printingMinimumShrinkFactor and printingMaximumShrinkFactor. \sa printingMinimumShrinkFactor() \sa setPrintingMaximumShrinkFactor() \sa printingMaximumShrinkFactor() */ void QWebSettings::setPrintingMinimumShrinkFactor(float printingMinimumShrinkFactor) { d->printingMinimumShrinkFactor = printingMinimumShrinkFactor; d->apply(); } /*! \since 4.7 returns the minimum shrink factor used for printing. \sa setPrintingMinimumShrinkFactor() */ float QWebSettings::printingMinimumShrinkFactor() const { return d->printingMinimumShrinkFactor; } /*! \since 4.7 Specifies maximum shrink fator allowed for printing. If set to 0 a default value is used. \sa setPrintingMinimumShrinkFactor() */ void QWebSettings::setPrintingMaximumShrinkFactor(float printingMaximumShrinkFactor) { d->printingMaximumShrinkFactor = printingMaximumShrinkFactor; d->apply(); } /*! \since 4.7 returns the maximum shrink factor used for printing. \sa setPrintingMinimumShrinkFactor() */ float QWebSettings::printingMaximumShrinkFactor() const { return d->printingMaximumShrinkFactor; } /*! Sets the path of the icon database to \a path. The icon database is used to store "favicons" associated with web sites. \a path must point to an existing directory where the icons are stored. Setting an empty path disables the icon database. */ void QWebSettings::setIconDatabasePath(const QString& path) { WebCore::iconDatabase()->delayDatabaseCleanup(); if (!path.isEmpty()) { WebCore::iconDatabase()->setEnabled(true); QFileInfo info(path); if (info.isDir() && info.isWritable()) WebCore::iconDatabase()->open(path); } else { WebCore::iconDatabase()->setEnabled(false); WebCore::iconDatabase()->close(); } } /*! Returns the path of the icon database or an empty string if the icon database is disabled. \sa setIconDatabasePath(), clearIconDatabase() */ QString QWebSettings::iconDatabasePath() { if (WebCore::iconDatabase()->isEnabled() && WebCore::iconDatabase()->isOpen()) return WebCore::iconDatabase()->databasePath(); else return QString(); } /*! Clears the icon database. */ void QWebSettings::clearIconDatabase() { if (WebCore::iconDatabase()->isEnabled() && WebCore::iconDatabase()->isOpen()) WebCore::iconDatabase()->removeAllIcons(); } /*! Returns the web site's icon for \a url. If the web site does not specify an icon, or the icon is not in the database, a null QIcon is returned. \note The returned icon's size is arbitrary. \sa setIconDatabasePath() */ QIcon QWebSettings::iconForUrl(const QUrl& url) { WebCore::Image* image = WebCore::iconDatabase()->iconForPageURL(WebCore::KURL(url).string(), WebCore::IntSize(16, 16)); if (!image) return QPixmap(); QPixmap* icon = image->nativeImageForCurrentFrame(); if (!icon) return QPixmap(); return* icon; } /*! Returns the plugin database object. */ QWebPluginDatabase *QWebSettings::pluginDatabase() { static QWebPluginDatabase* database = 0; if (!database) database = new QWebPluginDatabase(); return database; } /*! Sets \a graphic to be drawn when QtWebKit needs to draw an image of the given \a type. For example, when an image cannot be loaded the pixmap specified by \l{QWebSettings::WebGraphic}{MissingImageGraphic} is drawn instead. \sa webGraphic() */ void QWebSettings::setWebGraphic(WebGraphic type, const QPixmap& graphic) { WebGraphicHash* h = graphics(); if (graphic.isNull()) h->remove(type); else h->insert(type, graphic); } /*! Returns a previously set pixmap used to draw replacement graphics of the specified \a type. For example, when an image cannot be loaded the pixmap specified by \l{QWebSettings::WebGraphic}{MissingImageGraphic} is drawn instead. \sa setWebGraphic() */ QPixmap QWebSettings::webGraphic(WebGraphic type) { return graphics()->value(type); } /*! Frees up as much memory as possible by cleaning all memory caches such as page, object and font cache. \since 4.6 */ void QWebSettings::clearMemoryCaches() { // Turn the cache on and off. Disabling the object cache will remove all // resources from the cache. They may still live on if they are referenced // by some Web page though. if (!WebCore::cache()->disabled()) { WebCore::cache()->setDisabled(true); WebCore::cache()->setDisabled(false); } int pageCapacity = WebCore::pageCache()->capacity(); // Setting size to 0, makes all pages be released. WebCore::pageCache()->setCapacity(0); WebCore::pageCache()->releaseAutoreleasedPagesNow(); WebCore::pageCache()->setCapacity(pageCapacity); // Invalidating the font cache and freeing all inactive font data. WebCore::fontCache()->invalidate(); // Empty the Cross-Origin Preflight cache WebCore::CrossOriginPreflightResultCache::shared().empty(); } /*! Sets the maximum number of pages to hold in the memory page cache to \a pages. The Page Cache allows for a nicer user experience when navigating forth or back to pages in the forward/back history, by pausing and resuming up to \a pages per page group. For more information about the feature, please refer to: http://webkit.org/blog/427/webkit-page-cache-i-the-basics/ */ void QWebSettings::setMaximumPagesInCache(int pages) { WebCore::pageCache()->setCapacity(qMax(0, pages)); } /*! Returns the maximum number of web pages that are kept in the memory cache. */ int QWebSettings::maximumPagesInCache() { return WebCore::pageCache()->capacity(); } /*! Specifies the capacities for the memory cache for dead objects such as stylesheets or scripts. The \a cacheMinDeadCapacity specifies the \e minimum number of bytes that dead objects should consume when the cache is under pressure. \a cacheMaxDead is the \e maximum number of bytes that dead objects should consume when the cache is \bold not under pressure. \a totalCapacity specifies the \e maximum number of bytes that the cache should consume \bold overall. The cache is enabled by default. Calling setObjectCacheCapacities(0, 0, 0) will disable the cache. Calling it with one non-zero enables it again. */ void QWebSettings::setObjectCacheCapacities(int cacheMinDeadCapacity, int cacheMaxDead, int totalCapacity) { bool disableCache = !cacheMinDeadCapacity && !cacheMaxDead && !totalCapacity; WebCore::cache()->setDisabled(disableCache); WebCore::cache()->setCapacities(qMax(0, cacheMinDeadCapacity), qMax(0, cacheMaxDead), qMax(0, totalCapacity)); } /*! Sets the actual font family to \a family for the specified generic family, \a which. */ void QWebSettings::setFontFamily(FontFamily which, const QString& family) { d->fontFamilies.insert(which, family); d->apply(); } /*! Returns the actual font family for the specified generic font family, \a which. */ QString QWebSettings::fontFamily(FontFamily which) const { QString defaultValue; if (d->settings) { QWebSettingsPrivate* global = QWebSettings::globalSettings()->d; defaultValue = global->fontFamilies.value(which); } return d->fontFamilies.value(which, defaultValue); } /*! Resets the actual font family to the default font family, specified by \a which. This function has no effect on the global QWebSettings instance. */ void QWebSettings::resetFontFamily(FontFamily which) { if (d->settings) { d->fontFamilies.remove(which); d->apply(); } } /*! \fn void QWebSettings::setAttribute(WebAttribute attribute, bool on) Enables or disables the specified \a attribute feature depending on the value of \a on. */ void QWebSettings::setAttribute(WebAttribute attr, bool on) { d->attributes.insert(attr, on); d->apply(); } /*! \fn bool QWebSettings::testAttribute(WebAttribute attribute) const Returns true if \a attribute is enabled; otherwise returns false. */ bool QWebSettings::testAttribute(WebAttribute attr) const { bool defaultValue = false; if (d->settings) { QWebSettingsPrivate* global = QWebSettings::globalSettings()->d; defaultValue = global->attributes.value(attr); } return d->attributes.value(attr, defaultValue); } /*! \fn void QWebSettings::resetAttribute(WebAttribute attribute) Resets the setting of \a attribute. This function has no effect on the global QWebSettings instance. \sa globalSettings() */ void QWebSettings::resetAttribute(WebAttribute attr) { if (d->settings) { d->attributes.remove(attr); d->apply(); } } /*! \since 4.5 Sets the path for HTML5 offline storage to \a path. \a path must point to an existing directory where the databases are stored. Setting an empty path disables the feature. \sa offlineStoragePath() */ void QWebSettings::setOfflineStoragePath(const QString& path) { #if ENABLE(DATABASE) WebCore::DatabaseTracker::tracker().setDatabaseDirectoryPath(path); #endif } /*! \since 4.5 Returns the path of the HTML5 offline storage or an empty string if the feature is disabled. \sa setOfflineStoragePath() */ QString QWebSettings::offlineStoragePath() { #if ENABLE(DATABASE) return WebCore::DatabaseTracker::tracker().databaseDirectoryPath(); #else return QString(); #endif } /*! \since 4.5 Sets the value of the default quota for new offline storage databases to \a maximumSize. */ void QWebSettings::setOfflineStorageDefaultQuota(qint64 maximumSize) { QWebSettings::globalSettings()->d->offlineStorageDefaultQuota = maximumSize; } /*! \since 4.5 Returns the value of the default quota for new offline storage databases. */ qint64 QWebSettings::offlineStorageDefaultQuota() { return QWebSettings::globalSettings()->d->offlineStorageDefaultQuota; } /*! \since 4.6 \relates QWebSettings Sets the path for HTML5 offline web application cache storage to \a path. An application cache acts like an HTTP cache in some sense. For documents that use the application cache via JavaScript, the loader mechinery will first ask the application cache for the contents, before hitting the network. The feature is described in details at: http://dev.w3.org/html5/spec/Overview.html#appcache \a path must point to an existing directory where the cache is stored. Setting an empty path disables the feature. \sa offlineWebApplicationCachePath() */ void QWebSettings::setOfflineWebApplicationCachePath(const QString& path) { #if ENABLE(OFFLINE_WEB_APPLICATIONS) WebCore::cacheStorage().setCacheDirectory(path); #endif } /*! \since 4.6 \relates QWebSettings Returns the path of the HTML5 offline web application cache storage or an empty string if the feature is disabled. \sa setOfflineWebApplicationCachePath() */ QString QWebSettings::offlineWebApplicationCachePath() { #if ENABLE(OFFLINE_WEB_APPLICATIONS) return WebCore::cacheStorage().cacheDirectory(); #else return QString(); #endif } /*! \since 4.6 Sets the value of the quota for the offline web application cache to \a maximumSize. */ void QWebSettings::setOfflineWebApplicationCacheQuota(qint64 maximumSize) { #if ENABLE(OFFLINE_WEB_APPLICATIONS) WebCore::cacheStorage().setMaximumSize(maximumSize); #endif } /*! \since 4.6 Returns the value of the quota for the offline web application cache. */ qint64 QWebSettings::offlineWebApplicationCacheQuota() { #if ENABLE(OFFLINE_WEB_APPLICATIONS) return WebCore::cacheStorage().maximumSize(); #else return 0; #endif } /*! \since 4.6 \relates QWebSettings Sets the path for HTML5 local storage to \a path. For more information on HTML5 local storage see the \l{http://www.w3.org/TR/webstorage/#the-localstorage-attribute}{Web Storage standard}. Support for local storage can enabled by setting the \l{QWebSettings::LocalStorageEnabled}{LocalStorageEnabled} attribute. \sa localStoragePath() */ void QWebSettings::setLocalStoragePath(const QString& path) { d->localStoragePath = path; d->apply(); } /*! \since 4.6 \relates QWebSettings Returns the path for HTML5 local storage. \sa setLocalStoragePath() */ QString QWebSettings::localStoragePath() const { return d->localStoragePath; } /*! \since 4.6 \relates QWebSettings Enables WebKit persistent data and sets the path to \a path. If the \a path is empty the path for persistent data is set to the user-specific data location specified by \l{QDesktopServices::DataLocation}{DataLocation}. \sa localStoragePath() */ void QWebSettings::enablePersistentStorage(const QString& path) { QString storagePath; if (path.isEmpty()) { storagePath = QDesktopServices::storageLocation(QDesktopServices::DataLocation); if (storagePath.isEmpty()) storagePath = WebCore::pathByAppendingComponent(QDir::homePath(), QCoreApplication::applicationName()); } else storagePath = path; WebCore::makeAllDirectories(storagePath); QWebSettings::setIconDatabasePath(storagePath); QWebSettings::setOfflineWebApplicationCachePath(storagePath); QWebSettings::setOfflineStoragePath(WebCore::pathByAppendingComponent(storagePath, "Databases")); QWebSettings::globalSettings()->setLocalStoragePath(WebCore::pathByAppendingComponent(storagePath, "LocalStorage")); QWebSettings::globalSettings()->setAttribute(QWebSettings::LocalStorageEnabled, true); QWebSettings::globalSettings()->setAttribute(QWebSettings::OfflineStorageDatabaseEnabled, true); QWebSettings::globalSettings()->setAttribute(QWebSettings::OfflineWebApplicationCacheEnabled, true); } /*! \fn QWebSettingsPrivate* QWebSettings::handle() const \internal */