/WebVox/src/com/marvin/webvox/BrowserSettings.java
http://eyes-free.googlecode.com/ · Java · 587 lines · 372 code · 70 blank · 145 comment · 32 complexity · effdbc0b2dd2213ca1e7a5a2f6b7cb8b MD5 · raw file
- /*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- package com.marvin.webvox;
- import com.marvin.webvox.R;
- //import com.google.android.providers.GoogleSettings.Partner;
- import android.content.ContentResolver;
- import android.content.Context;
- import android.content.pm.ActivityInfo;
- import android.content.SharedPreferences;
- import android.content.SharedPreferences.Editor;
- import android.preference.PreferenceActivity;
- import android.preference.PreferenceScreen;
- import android.webkit.CookieManager;
- import android.webkit.GeolocationPermissions;
- //import android.webkit.ValueCallback;
- import android.webkit.WebView;
- import android.webkit.WebViewDatabase;
- import android.webkit.WebIconDatabase;
- import android.webkit.WebSettings;
- import android.webkit.WebStorage;
- import android.preference.PreferenceManager;
- import android.provider.Browser;
- import java.util.HashMap;
- import java.util.Map;
- import java.util.Set;
- import java.util.Observable;
- /*
- * Package level class for storing various WebView and Browser settings. To use
- * this class:
- * BrowserSettings s = BrowserSettings.getInstance();
- * s.addObserver(webView.getSettings());
- * s.loadFromDb(context); // Only needed on app startup
- * s.javaScriptEnabled = true;
- * ... // set any other settings
- * s.update(); // this will update all the observers
- *
- * To remove an observer:
- * s.deleteObserver(webView.getSettings());
- */
- class BrowserSettings extends Observable {
- // Private variables for settings
- // NOTE: these defaults need to be kept in sync with the XML
- // until the performance of PreferenceManager.setDefaultValues()
- // is improved.
- private boolean loadsImagesAutomatically = true;
- private boolean javaScriptEnabled = true;
- private boolean pluginsEnabled = true;
- private boolean javaScriptCanOpenWindowsAutomatically = false;
- private boolean showSecurityWarnings = true;
- private boolean rememberPasswords = true;
- private boolean saveFormData = true;
- private boolean openInBackground = false;
- private String defaultTextEncodingName;
- private String homeUrl = "";
- private boolean loginInitialized = false;
- private boolean autoFitPage = true;
- private boolean landscapeOnly = false;
- private boolean loadsPageInOverviewMode = true;
- private boolean showDebugSettings = false;
- // HTML5 API flags
- private boolean appCacheEnabled = true;
- private boolean databaseEnabled = true;
- private boolean domStorageEnabled = true;
- private boolean geolocationEnabled = true;
- private boolean workersEnabled = true; // only affects V8. JSC does not have a similar setting
- // HTML5 API configuration params
- private long appCacheMaxSize = Long.MAX_VALUE;
- private String appCachePath; // default value set in loadFromDb().
- private String databasePath; // default value set in loadFromDb()
- private String geolocationDatabasePath; // default value set in loadFromDb()
- private WebStorageSizeManager webStorageSizeManager;
- private String jsFlags = "";
- private final static String TAG = "BrowserSettings";
- // Development settings
- public WebSettings.LayoutAlgorithm layoutAlgorithm =
- WebSettings.LayoutAlgorithm.NARROW_COLUMNS;
- private boolean useWideViewPort = true;
- private int userAgent = 0;
- private boolean tracing = false;
- private boolean lightTouch = false;
- private boolean navDump = false;
- // By default the error console is shown once the user navigates to about:debug.
- // The setting can be then toggled from the settings menu.
- private boolean showConsole = true;
- // Browser only settings
- private boolean doFlick = false;
- // Private preconfigured values
- private static int minimumFontSize = 8;
- private static int minimumLogicalFontSize = 8;
- private static int defaultFontSize = 16;
- private static int defaultFixedFontSize = 13;
- private static WebSettings.TextSize textSize =
- WebSettings.TextSize.NORMAL;
- // private static WebSettings.ZoomDensity zoomDensity =
- // WebSettings.ZoomDensity.MEDIUM;
- // Preference keys that are used outside this class
- public final static String PREF_CLEAR_CACHE = "privacy_clear_cache";
- public final static String PREF_CLEAR_COOKIES = "privacy_clear_cookies";
- public final static String PREF_CLEAR_HISTORY = "privacy_clear_history";
- public final static String PREF_HOMEPAGE = "homepage";
- public final static String PREF_CLEAR_FORM_DATA =
- "privacy_clear_form_data";
- public final static String PREF_CLEAR_PASSWORDS =
- "privacy_clear_passwords";
- public final static String PREF_EXTRAS_RESET_DEFAULTS =
- "reset_default_preferences";
- public final static String PREF_DEBUG_SETTINGS = "debug_menu";
- public final static String PREF_WEBSITE_SETTINGS = "website_settings";
- public final static String PREF_TEXT_SIZE = "text_size";
- public final static String PREF_DEFAULT_ZOOM = "default_zoom";
- public final static String PREF_DEFAULT_TEXT_ENCODING =
- "default_text_encoding";
- public final static String PREF_CLEAR_GEOLOCATION_ACCESS =
- "privacy_clear_geolocation_access";
- private static final String DESKTOP_USERAGENT = "Mozilla/5.0 (Macintosh; " +
- "U; Intel Mac OS X 10_5_7; en-us) AppleWebKit/530.17 (KHTML, " +
- "like Gecko) Version/4.0 Safari/530.17";
- private static final String IPHONE_USERAGENT = "Mozilla/5.0 (iPhone; U; " +
- "CPU iPhone OS 3_0 like Mac OS X; en-us) AppleWebKit/528.18 " +
- "(KHTML, like Gecko) Version/4.0 Mobile/7A341 Safari/528.16";
- // Value to truncate strings when adding them to a TextView within
- // a ListView
- public final static int MAX_TEXTVIEW_LEN = 80;
- private TabControl mTabControl;
- // Single instance of the BrowserSettings for use in the Browser app.
- private static BrowserSettings sSingleton;
- // Private map of WebSettings to Observer objects used when deleting an
- // observer.
- private HashMap<WebSettings,Observer> mWebSettingsToObservers =
- new HashMap<WebSettings,Observer>();
- /*
- * An observer wrapper for updating a WebSettings object with the new
- * settings after a call to BrowserSettings.update().
- */
- static class Observer implements java.util.Observer {
- // Private WebSettings object that will be updated.
- private WebSettings mSettings;
- Observer(WebSettings w) {
- mSettings = w;
- }
- public void update(Observable o, Object arg) {
- BrowserSettings b = (BrowserSettings)o;
- WebSettings s = mSettings;
- s.setLayoutAlgorithm(b.layoutAlgorithm);
- if (b.userAgent == 0) {
- // use the default ua string
- s.setUserAgentString(null);
- } else if (b.userAgent == 1) {
- s.setUserAgentString(DESKTOP_USERAGENT);
- } else if (b.userAgent == 2) {
- s.setUserAgentString(IPHONE_USERAGENT);
- }
- s.setUseWideViewPort(b.useWideViewPort);
- s.setLoadsImagesAutomatically(b.loadsImagesAutomatically);
- s.setJavaScriptEnabled(b.javaScriptEnabled);
- s.setPluginsEnabled(b.pluginsEnabled);
- s.setJavaScriptCanOpenWindowsAutomatically(
- b.javaScriptCanOpenWindowsAutomatically);
- s.setDefaultTextEncodingName(b.defaultTextEncodingName);
- s.setMinimumFontSize(b.minimumFontSize);
- s.setMinimumLogicalFontSize(b.minimumLogicalFontSize);
- s.setDefaultFontSize(b.defaultFontSize);
- s.setDefaultFixedFontSize(b.defaultFixedFontSize);
- s.setNavDump(b.navDump);
- s.setTextSize(b.textSize);
- // s.setDefaultZoom(b.zoomDensity);
- s.setLightTouchEnabled(b.lightTouch);
- s.setSaveFormData(b.saveFormData);
- s.setSavePassword(b.rememberPasswords);
- // s.setLoadWithOverviewMode(b.loadsPageInOverviewMode);
- // WebView inside Browser doesn't want initial focus to be set.
- s.setNeedInitialFocus(false);
- // Browser supports multiple windows
- s.setSupportMultipleWindows(true);
- // HTML5 API flags
- // s.setAppCacheEnabled(b.appCacheEnabled);
- s.setDatabaseEnabled(b.databaseEnabled);
- // s.setDomStorageEnabled(b.domStorageEnabled);
- // s.setWorkersEnabled(b.workersEnabled); // This only affects V8.
- s.setGeolocationEnabled(b.geolocationEnabled);
- // HTML5 configuration parameters.
- // s.setAppCacheMaxSize(b.appCacheMaxSize);
- // s.setAppCachePath(b.appCachePath);
- s.setDatabasePath(b.databasePath);
- s.setGeolocationDatabasePath(b.geolocationDatabasePath);
- // Enable/Disable the error console.
- b.mTabControl.getBrowserActivity().setShouldShowErrorConsole(
- b.showDebugSettings && b.showConsole);
- }
- }
- /**
- * Load settings from the browser app's database.
- * NOTE: Strings used for the preferences must match those specified
- * in the browser_preferences.xml
- * @param ctx A Context object used to query the browser's settings
- * database. If the database exists, the saved settings will be
- * stored in this BrowserSettings object. This will update all
- * observers of this object.
- */
- public void loadFromDb(Context ctx) {
- SharedPreferences p =
- PreferenceManager.getDefaultSharedPreferences(ctx);
- // Set the default value for the Application Caches path.
- appCachePath = ctx.getDir("appcache", 0).getPath();
- // Determine the maximum size of the application cache.
- webStorageSizeManager = new WebStorageSizeManager(
- ctx,
- new WebStorageSizeManager.StatFsDiskInfo(appCachePath),
- new WebStorageSizeManager.WebKitAppCacheInfo(appCachePath));
- appCacheMaxSize = webStorageSizeManager.getAppCacheMaxSize();
- // Set the default value for the Database path.
- databasePath = ctx.getDir("databases", 0).getPath();
- // Set the default value for the Geolocation database path.
- geolocationDatabasePath = ctx.getDir("geolocation", 0).getPath();
- homeUrl = getFactoryResetHomeUrl(ctx);
- // Load the defaults from the xml
- // This call is TOO SLOW, need to manually keep the defaults
- // in sync
- //PreferenceManager.setDefaultValues(ctx, R.xml.browser_preferences);
- syncSharedPreferences(p);
- }
- /* package */ void syncSharedPreferences(SharedPreferences p) {
- homeUrl =
- p.getString(PREF_HOMEPAGE, homeUrl);
- loadsImagesAutomatically = p.getBoolean("load_images",
- loadsImagesAutomatically);
- javaScriptEnabled = p.getBoolean("enable_javascript",
- javaScriptEnabled);
- pluginsEnabled = p.getBoolean("enable_plugins",
- pluginsEnabled);
- javaScriptCanOpenWindowsAutomatically = !p.getBoolean(
- "block_popup_windows",
- !javaScriptCanOpenWindowsAutomatically);
- showSecurityWarnings = p.getBoolean("show_security_warnings",
- showSecurityWarnings);
- rememberPasswords = p.getBoolean("remember_passwords",
- rememberPasswords);
- saveFormData = p.getBoolean("save_formdata",
- saveFormData);
- boolean accept_cookies = p.getBoolean("accept_cookies",
- CookieManager.getInstance().acceptCookie());
- CookieManager.getInstance().setAcceptCookie(accept_cookies);
- openInBackground = p.getBoolean("open_in_background", openInBackground);
- loginInitialized = p.getBoolean("login_initialized", loginInitialized);
- textSize = WebSettings.TextSize.valueOf(
- p.getString(PREF_TEXT_SIZE, textSize.name()));
- // zoomDensity = WebSettings.ZoomDensity.valueOf(
- // p.getString(PREF_DEFAULT_ZOOM, zoomDensity.name()));
- autoFitPage = p.getBoolean("autofit_pages", autoFitPage);
- loadsPageInOverviewMode = p.getBoolean("load_page",
- loadsPageInOverviewMode);
- boolean landscapeOnlyTemp =
- p.getBoolean("landscape_only", landscapeOnly);
- if (landscapeOnlyTemp != landscapeOnly) {
- landscapeOnly = landscapeOnlyTemp;
- mTabControl.getBrowserActivity().setRequestedOrientation(
- landscapeOnly ? ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE
- : ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
- }
- useWideViewPort = true; // use wide view port for either setting
- if (autoFitPage) {
- layoutAlgorithm = WebSettings.LayoutAlgorithm.NARROW_COLUMNS;
- } else {
- layoutAlgorithm = WebSettings.LayoutAlgorithm.NORMAL;
- }
- defaultTextEncodingName =
- p.getString(PREF_DEFAULT_TEXT_ENCODING,
- defaultTextEncodingName);
- showDebugSettings =
- p.getBoolean(PREF_DEBUG_SETTINGS, showDebugSettings);
- // Debug menu items have precidence if the menu is visible
- if (showDebugSettings) {
- boolean small_screen = p.getBoolean("small_screen",
- layoutAlgorithm ==
- WebSettings.LayoutAlgorithm.SINGLE_COLUMN);
- if (small_screen) {
- layoutAlgorithm = WebSettings.LayoutAlgorithm.SINGLE_COLUMN;
- } else {
- boolean normal_layout = p.getBoolean("normal_layout",
- layoutAlgorithm == WebSettings.LayoutAlgorithm.NORMAL);
- if (normal_layout) {
- layoutAlgorithm = WebSettings.LayoutAlgorithm.NORMAL;
- } else {
- layoutAlgorithm =
- WebSettings.LayoutAlgorithm.NARROW_COLUMNS;
- }
- }
- useWideViewPort = p.getBoolean("wide_viewport", useWideViewPort);
- tracing = p.getBoolean("enable_tracing", tracing);
- lightTouch = p.getBoolean("enable_light_touch", lightTouch);
- navDump = p.getBoolean("enable_nav_dump", navDump);
- doFlick = p.getBoolean("enable_flick", doFlick);
- userAgent = Integer.parseInt(p.getString("user_agent", "0"));
- }
- // JS flags is loaded from DB even if showDebugSettings is false,
- // so that it can be set once and be effective all the time.
- jsFlags = p.getString("js_engine_flags", "");
- // Read the setting for showing/hiding the JS Console always so that should the
- // user enable debug settings, we already know if we should show the console.
- // The user will never see the console unless they navigate to about:debug,
- // regardless of the setting we read here. This setting is only used after debug
- // is enabled.
- showConsole = p.getBoolean("javascript_console", showConsole);
- mTabControl.getBrowserActivity().setShouldShowErrorConsole(
- showDebugSettings && showConsole);
- // HTML5 API flags
- appCacheEnabled = p.getBoolean("enable_appcache", appCacheEnabled);
- databaseEnabled = p.getBoolean("enable_database", databaseEnabled);
- domStorageEnabled = p.getBoolean("enable_domstorage", domStorageEnabled);
- geolocationEnabled = p.getBoolean("enable_geolocation", geolocationEnabled);
- workersEnabled = p.getBoolean("enable_workers", workersEnabled);
- update();
- }
- public String getHomePage() {
- return homeUrl;
- }
- public String getJsFlags() {
- return jsFlags;
- }
- public WebStorageSizeManager getWebStorageSizeManager() {
- return webStorageSizeManager;
- }
- public void setHomePage(Context context, String url) {
- Editor ed = PreferenceManager.
- getDefaultSharedPreferences(context).edit();
- ed.putString(PREF_HOMEPAGE, url);
- ed.commit();
- homeUrl = url;
- }
- public boolean isLoginInitialized() {
- return loginInitialized;
- }
- public void setLoginInitialized(Context context) {
- loginInitialized = true;
- Editor ed = PreferenceManager.
- getDefaultSharedPreferences(context).edit();
- ed.putBoolean("login_initialized", loginInitialized);
- ed.commit();
- }
- public WebSettings.TextSize getTextSize() {
- return textSize;
- }
- // public WebSettings.ZoomDensity getDefaultZoom() {
- // return zoomDensity;
- // }
- public boolean openInBackground() {
- return openInBackground;
- }
- public boolean showSecurityWarnings() {
- return showSecurityWarnings;
- }
- public boolean isTracing() {
- return tracing;
- }
- public boolean isLightTouch() {
- return lightTouch;
- }
- public boolean isNavDump() {
- return navDump;
- }
- public boolean doFlick() {
- return doFlick;
- }
- public boolean showDebugSettings() {
- return showDebugSettings;
- }
- public void toggleDebugSettings() {
- showDebugSettings = !showDebugSettings;
- navDump = showDebugSettings;
- update();
- }
- /**
- * Add a WebSettings object to the list of observers that will be updated
- * when update() is called.
- *
- * @param s A WebSettings object that is strictly tied to the life of a
- * WebView.
- */
- public Observer addObserver(WebSettings s) {
- Observer old = mWebSettingsToObservers.get(s);
- if (old != null) {
- super.deleteObserver(old);
- }
- Observer o = new Observer(s);
- mWebSettingsToObservers.put(s, o);
- super.addObserver(o);
- return o;
- }
- /**
- * Delete the given WebSettings observer from the list of observers.
- * @param s The WebSettings object to be deleted.
- */
- public void deleteObserver(WebSettings s) {
- Observer o = mWebSettingsToObservers.get(s);
- if (o != null) {
- mWebSettingsToObservers.remove(s);
- super.deleteObserver(o);
- }
- }
- /*
- * Package level method for obtaining a single app instance of the
- * BrowserSettings.
- */
- /*package*/ static BrowserSettings getInstance() {
- if (sSingleton == null ) {
- sSingleton = new BrowserSettings();
- }
- return sSingleton;
- }
- /*
- * Package level method for associating the BrowserSettings with TabControl
- */
- /* package */void setTabControl(TabControl tabControl) {
- mTabControl = tabControl;
- }
- /*
- * Update all the observers of the object.
- */
- /*package*/ void update() {
- setChanged();
- notifyObservers();
- }
- /*package*/ void clearCache(Context context) {
- WebIconDatabase.getInstance().removeAllIcons();
- if (mTabControl != null) {
- WebView current = mTabControl.getCurrentWebView();
- if (current != null) {
- current.clearCache(true);
- }
- }
- }
- /*package*/ void clearCookies(Context context) {
- CookieManager.getInstance().removeAllCookie();
- }
- /* package */void clearHistory(Context context) {
- ContentResolver resolver = context.getContentResolver();
- Browser.clearHistory(resolver);
- Browser.clearSearches(resolver);
- }
- /* package */ void clearFormData(Context context) {
- WebViewDatabase.getInstance(context).clearFormData();
- if (mTabControl != null) {
- mTabControl.getCurrentTopWebView().clearFormData();
- }
- }
- /*package*/ void clearPasswords(Context context) {
- WebViewDatabase db = WebViewDatabase.getInstance(context);
- db.clearUsernamePassword();
- db.clearHttpAuthUsernamePassword();
- }
- private void maybeDisableWebsiteSettings(Context context) {
- PreferenceActivity activity = (PreferenceActivity) context;
- final PreferenceScreen screen = (PreferenceScreen)
- activity.findPreference(BrowserSettings.PREF_WEBSITE_SETTINGS);
- screen.setEnabled(false);
- /*
- WebStorage.getInstance().getOrigins(new ValueCallback<Map>() {
- public void onReceiveValue(Map webStorageOrigins) {
- if ((webStorageOrigins != null) && !webStorageOrigins.isEmpty()) {
- screen.setEnabled(true);
- }
- }
- });
- GeolocationPermissions.getInstance().getOrigins(new ValueCallback<Set>() {
- public void onReceiveValue(Set geolocationOrigins) {
- if ((geolocationOrigins != null) && !geolocationOrigins.isEmpty()) {
- screen.setEnabled(true);
- }
- }
- });
- */
- }
- /*package*/ void clearDatabases(Context context) {
- // WebStorage.getInstance().deleteAllData();
- maybeDisableWebsiteSettings(context);
- }
- /*package*/ void clearLocationAccess(Context context) {
- // GeolocationPermissions.getInstance().clearAll();
- maybeDisableWebsiteSettings(context);
- }
- /*package*/ void resetDefaultPreferences(Context ctx) {
- SharedPreferences p =
- PreferenceManager.getDefaultSharedPreferences(ctx);
- p.edit().clear().commit();
- PreferenceManager.setDefaultValues(ctx, R.xml.browser_preferences,
- true);
- // reset homeUrl
- setHomePage(ctx, getFactoryResetHomeUrl(ctx));
- // reset appcache max size
- appCacheMaxSize = webStorageSizeManager.getAppCacheMaxSize();
- }
- private String getFactoryResetHomeUrl(Context context) {
- String url = context.getResources().getString(R.string.homepage_base);
- // if (url.indexOf("{CID}") != -1) {
- // url = url.replace("{CID}", Partner.getString(context
- // .getContentResolver(), Partner.CLIENT_ID, "android-google"));
- // }
- return url;
- }
- // Private constructor that does nothing.
- private BrowserSettings() {
- }
- }