auto import from //depot/cupcake/@135843
diff --git a/src/com/android/browser/BrowserSettings.java b/src/com/android/browser/BrowserSettings.java
new file mode 100644
index 0000000..d8c5186
--- /dev/null
+++ b/src/com/android/browser/BrowserSettings.java
@@ -0,0 +1,442 @@
+/*
+ * 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.android.browser;
+
+import android.app.Activity;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.pm.ActivityInfo;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.Editor;
+import android.os.SystemProperties;
+import android.view.WindowManager;
+import android.webkit.CacheManager;
+import android.webkit.CookieManager;
+import android.webkit.WebView;
+import android.webkit.WebViewDatabase;
+import android.webkit.WebIconDatabase;
+import android.webkit.WebSettings;
+import android.preference.PreferenceManager;
+import android.provider.Browser;
+
+import java.util.HashMap;
+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 {
+
+    // Public 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 String pluginsPath;  // default value set in loadFromDb().
+    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 = "http://www.google.com/m?client=ms-" +
+        SystemProperties.get("persist.sys.com.google.clientid", "unknown");
+    private boolean loginInitialized = false;
+    private boolean autoFitPage = true;
+    private boolean showDebugSettings = false;
+
+    // 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;
+    // 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;
+
+    // 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_GEARS_SETTINGS = "gears_settings";
+    public final static String PREF_TEXT_SIZE = "text_size";
+    public final static String PREF_DEFAULT_TEXT_ENCODING =
+            "default_text_encoding";
+
+    private static final String DESKTOP_USERAGENT = "Mozilla/5.0 (Macintosh; " +
+            "U; Intel Mac OS X 10_5_5; en-us) AppleWebKit/525.18 (KHTML, " +
+            "like Gecko) Version/3.1.2 Safari/525.20.1";
+
+    private static final String IPHONE_USERAGENT = "Mozilla/5.0 (iPhone; U; " +
+            "CPU iPhone OS 2_2 like Mac OS X; en-us) AppleWebKit/525.18.1 " +
+            "(KHTML, like Gecko) Version/3.1.1 Mobile/5G77 Safari/525.20";
+
+    // 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.setPluginsPath(b.pluginsPath);
+            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.setLightTouchEnabled(b.lightTouch);
+            s.setSaveFormData(b.saveFormData);
+            s.setSavePassword(b.rememberPasswords);
+
+            // WebView inside Browser doesn't want initial focus to be set.
+            s.setNeedInitialFocus(false);
+            // Browser supports multiple windows
+            s.setSupportMultipleWindows(true);
+            // Turn off file access
+            s.setAllowFileAccess(false);
+        }
+    }
+
+    /**
+     * 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 plugins path to the application's
+        // local directory.
+        pluginsPath = ctx.getDir("plugins", 0).getPath();
+
+        // 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);
+        pluginsPath = p.getString("plugins_path", pluginsPath);
+        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()));
+        autoFitPage = p.getBoolean("autofit_pages", autoFitPage);
+        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"));
+            mTabControl.getBrowserActivity().setBaseSearchUrl(
+                    p.getString("search_url", ""));
+        }
+        update();
+    }
+
+    public String getPluginsPath() {
+        return pluginsPath;
+    }
+
+    public String getHomePage() {
+        return homeUrl;
+    }
+
+    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 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();
+    }
+
+    /*package*/ void resetDefaultPreferences(Context context) {
+        SharedPreferences p =
+            PreferenceManager.getDefaultSharedPreferences(context);
+        p.edit().clear().commit();
+        PreferenceManager.setDefaultValues(context, R.xml.browser_preferences,
+                true);
+    }
+
+    // Private constructor that does nothing.
+    private BrowserSettings() {
+    }
+}