| /* |
| * 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 android.webkit; |
| |
| import android.content.Context; |
| import android.os.Build; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.provider.Checkin; |
| |
| import java.lang.SecurityException; |
| import android.content.pm.PackageManager; |
| |
| import java.util.Locale; |
| |
| /** |
| * Manages settings state for a WebView. When a WebView is first created, it |
| * obtains a set of default settings. These default settings will be returned |
| * from any getter call. A WebSettings object obtained from |
| * WebView.getSettings() is tied to the life of the WebView. If a WebView has |
| * been destroyed, any method call on WebSettings will throw an |
| * IllegalStateException. |
| */ |
| public class WebSettings { |
| /** |
| * Enum for controlling the layout of html. |
| * NORMAL means no rendering changes. |
| * SINGLE_COLUMN moves all content into one column that is the width of the |
| * view. |
| * NARROW_COLUMNS makes all columns no wider than the screen if possible. |
| */ |
| // XXX: These must match LayoutAlgorithm in Settings.h in WebCore. |
| public enum LayoutAlgorithm { |
| NORMAL, |
| SINGLE_COLUMN, |
| NARROW_COLUMNS |
| } |
| |
| /** |
| * Enum for specifying the text size. |
| * SMALLEST is 50% |
| * SMALLER is 75% |
| * NORMAL is 100% |
| * LARGER is 150% |
| * LARGEST is 200% |
| */ |
| public enum TextSize { |
| SMALLEST(50), |
| SMALLER(75), |
| NORMAL(100), |
| LARGER(150), |
| LARGEST(200); |
| TextSize(int size) { |
| value = size; |
| } |
| int value; |
| } |
| |
| /** |
| * Default cache usage pattern Use with {@link #setCacheMode}. |
| */ |
| public static final int LOAD_DEFAULT = -1; |
| |
| /** |
| * Normal cache usage pattern Use with {@link #setCacheMode}. |
| */ |
| public static final int LOAD_NORMAL = 0; |
| |
| /** |
| * Use cache if content is there, even if expired (eg, history nav) |
| * If it is not in the cache, load from network. |
| * Use with {@link #setCacheMode}. |
| */ |
| public static final int LOAD_CACHE_ELSE_NETWORK = 1; |
| |
| /** |
| * Don't use the cache, load from network |
| * Use with {@link #setCacheMode}. |
| */ |
| public static final int LOAD_NO_CACHE = 2; |
| |
| /** |
| * Don't use the network, load from cache only. |
| * Use with {@link #setCacheMode}. |
| */ |
| public static final int LOAD_CACHE_ONLY = 3; |
| |
| public enum RenderPriority { |
| NORMAL, |
| HIGH, |
| LOW |
| } |
| |
| // BrowserFrame used to access the native frame pointer. |
| private BrowserFrame mBrowserFrame; |
| // Flag to prevent multiple SYNC messages at one time. |
| private boolean mSyncPending = false; |
| // Custom handler that queues messages until the WebCore thread is active. |
| private final EventHandler mEventHandler; |
| // Private settings so we don't have to go into native code to |
| // retrieve the values. After setXXX, postSync() needs to be called. |
| // XXX: The default values need to match those in WebSettings.cpp |
| private LayoutAlgorithm mLayoutAlgorithm = LayoutAlgorithm.NARROW_COLUMNS; |
| private Context mContext; |
| private TextSize mTextSize = TextSize.NORMAL; |
| private String mStandardFontFamily = "sans-serif"; |
| private String mFixedFontFamily = "monospace"; |
| private String mSansSerifFontFamily = "sans-serif"; |
| private String mSerifFontFamily = "serif"; |
| private String mCursiveFontFamily = "cursive"; |
| private String mFantasyFontFamily = "fantasy"; |
| private String mDefaultTextEncoding = "Latin-1"; |
| private String mUserAgent; |
| private boolean mUseDefaultUserAgent; |
| private String mAcceptLanguage; |
| private String mPluginsPath = ""; |
| private int mMinimumFontSize = 8; |
| private int mMinimumLogicalFontSize = 8; |
| private int mDefaultFontSize = 16; |
| private int mDefaultFixedFontSize = 13; |
| private boolean mLoadsImagesAutomatically = true; |
| private boolean mBlockNetworkImage = false; |
| private boolean mBlockNetworkLoads; |
| private boolean mJavaScriptEnabled = false; |
| private boolean mPluginsEnabled = false; |
| private boolean mJavaScriptCanOpenWindowsAutomatically = false; |
| private boolean mUseDoubleTree = false; |
| private boolean mUseWideViewport = false; |
| private boolean mSupportMultipleWindows = false; |
| private boolean mShrinksStandaloneImagesToFit = false; |
| // Don't need to synchronize the get/set methods as they |
| // are basic types, also none of these values are used in |
| // native WebCore code. |
| private RenderPriority mRenderPriority = RenderPriority.NORMAL; |
| private int mOverrideCacheMode = LOAD_DEFAULT; |
| private boolean mSaveFormData = true; |
| private boolean mSavePassword = true; |
| private boolean mLightTouchEnabled = false; |
| private boolean mNeedInitialFocus = true; |
| private boolean mNavDump = false; |
| private boolean mSupportZoom = true; |
| private boolean mBuiltInZoomControls = false; |
| private boolean mAllowFileAccess = true; |
| |
| // Class to handle messages before WebCore is ready. |
| private class EventHandler { |
| // Message id for syncing |
| static final int SYNC = 0; |
| // Message id for setting priority |
| static final int PRIORITY = 1; |
| // Actual WebCore thread handler |
| private Handler mHandler; |
| |
| private synchronized void createHandler() { |
| // as mRenderPriority can be set before thread is running, sync up |
| setRenderPriority(); |
| |
| // create a new handler |
| mHandler = new Handler() { |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case SYNC: |
| synchronized (WebSettings.this) { |
| if (mBrowserFrame.mNativeFrame != 0) { |
| nativeSync(mBrowserFrame.mNativeFrame); |
| } |
| mSyncPending = false; |
| } |
| break; |
| |
| case PRIORITY: { |
| setRenderPriority(); |
| break; |
| } |
| } |
| } |
| }; |
| } |
| |
| private void setRenderPriority() { |
| synchronized (WebSettings.this) { |
| if (mRenderPriority == RenderPriority.NORMAL) { |
| android.os.Process.setThreadPriority( |
| android.os.Process.THREAD_PRIORITY_DEFAULT); |
| } else if (mRenderPriority == RenderPriority.HIGH) { |
| android.os.Process.setThreadPriority( |
| android.os.Process.THREAD_PRIORITY_FOREGROUND + |
| android.os.Process.THREAD_PRIORITY_LESS_FAVORABLE); |
| } else if (mRenderPriority == RenderPriority.LOW) { |
| android.os.Process.setThreadPriority( |
| android.os.Process.THREAD_PRIORITY_BACKGROUND); |
| } |
| } |
| } |
| |
| /** |
| * Send a message to the private queue or handler. |
| */ |
| private synchronized boolean sendMessage(Message msg) { |
| if (mHandler != null) { |
| mHandler.sendMessage(msg); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| } |
| |
| // User agent strings. |
| private static final String DESKTOP_USERAGENT = |
| "Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en)" |
| + " AppleWebKit/528.5+ (KHTML, like Gecko) Version/3.1.2" |
| + " Safari/525.20.1"; |
| private static final String IPHONE_USERAGENT = |
| "Mozilla/5.0 (iPhone; U; CPU iPhone 2_1 like Mac OS X; en)" |
| + " AppleWebKit/528.5+ (KHTML, like Gecko) Version/3.1.2" |
| + " Mobile/5F136 Safari/525.20.1"; |
| private static Locale sLocale; |
| private static Object sLockForLocaleSettings; |
| |
| /** |
| * Package constructor to prevent clients from creating a new settings |
| * instance. |
| */ |
| WebSettings(Context context) { |
| mEventHandler = new EventHandler(); |
| mContext = context; |
| |
| if (sLockForLocaleSettings == null) { |
| sLockForLocaleSettings = new Object(); |
| sLocale = Locale.getDefault(); |
| } |
| mAcceptLanguage = getCurrentAcceptLanguage(); |
| mUserAgent = getCurrentUserAgent(); |
| mUseDefaultUserAgent = true; |
| |
| mBlockNetworkLoads = mContext.checkPermission( |
| "android.permission.INTERNET", android.os.Process.myPid(), |
| android.os.Process.myUid()) != PackageManager.PERMISSION_GRANTED; |
| } |
| |
| /** |
| * Looks at sLocale and returns current AcceptLanguage String. |
| * @return Current AcceptLanguage String. |
| */ |
| private String getCurrentAcceptLanguage() { |
| Locale locale; |
| synchronized(sLockForLocaleSettings) { |
| locale = sLocale; |
| } |
| StringBuffer buffer = new StringBuffer(); |
| final String language = locale.getLanguage(); |
| if (language != null) { |
| buffer.append(language); |
| final String country = locale.getCountry(); |
| if (country != null) { |
| buffer.append("-"); |
| buffer.append(country); |
| } |
| } |
| if (!locale.equals(Locale.US)) { |
| buffer.append(", "); |
| java.util.Locale us = Locale.US; |
| if (us.getLanguage() != null) { |
| buffer.append(us.getLanguage()); |
| final String country = us.getCountry(); |
| if (country != null) { |
| buffer.append("-"); |
| buffer.append(country); |
| } |
| } |
| } |
| |
| return buffer.toString(); |
| } |
| |
| /** |
| * Looks at sLocale and mContext and returns current UserAgent String. |
| * @return Current UserAgent String. |
| */ |
| private synchronized String getCurrentUserAgent() { |
| Locale locale; |
| synchronized(sLockForLocaleSettings) { |
| locale = sLocale; |
| } |
| StringBuffer buffer = new StringBuffer(); |
| // Add version |
| final String version = Build.VERSION.RELEASE; |
| if (version.length() > 0) { |
| buffer.append(version); |
| } else { |
| // default to "1.0" |
| buffer.append("1.0"); |
| } |
| buffer.append("; "); |
| final String language = locale.getLanguage(); |
| if (language != null) { |
| buffer.append(language.toLowerCase()); |
| final String country = locale.getCountry(); |
| if (country != null) { |
| buffer.append("-"); |
| buffer.append(country.toLowerCase()); |
| } |
| } else { |
| // default to "en" |
| buffer.append("en"); |
| } |
| |
| final String model = Build.MODEL; |
| if (model.length() > 0) { |
| buffer.append("; "); |
| buffer.append(model); |
| } |
| final String id = Build.ID; |
| if (id.length() > 0) { |
| buffer.append(" Build/"); |
| buffer.append(id); |
| } |
| final String base = mContext.getResources().getText( |
| com.android.internal.R.string.web_user_agent).toString(); |
| return String.format(base, buffer); |
| } |
| |
| /** |
| * Enables dumping the pages navigation cache to a text file. |
| */ |
| public void setNavDump(boolean enabled) { |
| mNavDump = enabled; |
| } |
| |
| /** |
| * Returns true if dumping the navigation cache is enabled. |
| */ |
| public boolean getNavDump() { |
| return mNavDump; |
| } |
| |
| /** |
| * Set whether the WebView supports zoom |
| */ |
| public void setSupportZoom(boolean support) { |
| mSupportZoom = support; |
| } |
| |
| /** |
| * Returns whether the WebView supports zoom |
| */ |
| public boolean supportZoom() { |
| return mSupportZoom; |
| } |
| |
| /** |
| * Sets whether the zoom mechanism built into WebView is used. |
| */ |
| public void setBuiltInZoomControls(boolean enabled) { |
| mBuiltInZoomControls = enabled; |
| } |
| |
| /** |
| * Returns true if the zoom mechanism built into WebView is being used. |
| */ |
| public boolean getBuiltInZoomControls() { |
| return mBuiltInZoomControls; |
| } |
| |
| /** |
| * Enable or disable file access within WebView. File access is enabled by |
| * default. |
| */ |
| public void setAllowFileAccess(boolean allow) { |
| mAllowFileAccess = allow; |
| } |
| |
| /** |
| * Returns true if this WebView supports file access. |
| */ |
| public boolean getAllowFileAccess() { |
| return mAllowFileAccess; |
| } |
| |
| /** |
| * Store whether the WebView is saving form data. |
| */ |
| public void setSaveFormData(boolean save) { |
| mSaveFormData = save; |
| } |
| |
| /** |
| * Return whether the WebView is saving form data. |
| */ |
| public boolean getSaveFormData() { |
| return mSaveFormData; |
| } |
| |
| /** |
| * Store whether the WebView is saving password. |
| */ |
| public void setSavePassword(boolean save) { |
| mSavePassword = save; |
| } |
| |
| /** |
| * Return whether the WebView is saving password. |
| */ |
| public boolean getSavePassword() { |
| return mSavePassword; |
| } |
| |
| /** |
| * Set the text size of the page. |
| * @param t A TextSize value for increasing or decreasing the text. |
| * @see WebSettings.TextSize |
| */ |
| public synchronized void setTextSize(TextSize t) { |
| if (WebView.mLogEvent && mTextSize != t ) { |
| Checkin.updateStats(mContext.getContentResolver(), |
| Checkin.Stats.Tag.BROWSER_TEXT_SIZE_CHANGE, 1, 0.0); |
| } |
| mTextSize = t; |
| postSync(); |
| } |
| |
| /** |
| * Get the text size of the page. |
| * @return A TextSize enum value describing the text size. |
| * @see WebSettings.TextSize |
| */ |
| public synchronized TextSize getTextSize() { |
| return mTextSize; |
| } |
| |
| /** |
| * Enables using light touches to make a selection and activate mouseovers. |
| */ |
| public void setLightTouchEnabled(boolean enabled) { |
| mLightTouchEnabled = enabled; |
| } |
| |
| /** |
| * Returns true if light touches are enabled. |
| */ |
| public boolean getLightTouchEnabled() { |
| return mLightTouchEnabled; |
| } |
| |
| /** |
| * Tell the WebView to use the double tree rendering algorithm. |
| * @param use True if the WebView is to use double tree rendering, false |
| * otherwise. |
| */ |
| public synchronized void setUseDoubleTree(boolean use) { |
| if (mUseDoubleTree != use) { |
| mUseDoubleTree = use; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Return true if the WebView is using the double tree rendering algorithm. |
| * @return True if the WebView is using the double tree rendering |
| * algorithm. |
| */ |
| public synchronized boolean getUseDoubleTree() { |
| return mUseDoubleTree; |
| } |
| |
| /** |
| * Tell the WebView about user-agent string. |
| * @param ua 0 if the WebView should use an Android user-agent string, |
| * 1 if the WebView should use a desktop user-agent string. |
| * |
| * @deprecated Please use setUserAgentString instead. |
| */ |
| @Deprecated |
| public synchronized void setUserAgent(int ua) { |
| String uaString = null; |
| if (ua == 1) { |
| if (DESKTOP_USERAGENT.equals(mUserAgent)) { |
| return; // do nothing |
| } else { |
| uaString = DESKTOP_USERAGENT; |
| } |
| } else if (ua == 2) { |
| if (IPHONE_USERAGENT.equals(mUserAgent)) { |
| return; // do nothing |
| } else { |
| uaString = IPHONE_USERAGENT; |
| } |
| } else if (ua != 0) { |
| return; // do nothing |
| } |
| setUserAgentString(uaString); |
| } |
| |
| /** |
| * Return user-agent as int |
| * @return int 0 if the WebView is using an Android user-agent string. |
| * 1 if the WebView is using a desktop user-agent string. |
| * -1 if the WebView is using user defined user-agent string. |
| * |
| * @deprecated Please use getUserAgentString instead. |
| */ |
| @Deprecated |
| public synchronized int getUserAgent() { |
| if (DESKTOP_USERAGENT.equals(mUserAgent)) { |
| return 1; |
| } else if (IPHONE_USERAGENT.equals(mUserAgent)) { |
| return 2; |
| } else if (mUseDefaultUserAgent) { |
| return 0; |
| } |
| return -1; |
| } |
| |
| /** |
| * Tell the WebView to use the wide viewport |
| */ |
| public synchronized void setUseWideViewPort(boolean use) { |
| if (mUseWideViewport != use) { |
| mUseWideViewport = use; |
| postSync(); |
| } |
| } |
| |
| /** |
| * @return True if the WebView is using a wide viewport |
| */ |
| public synchronized boolean getUseWideViewPort() { |
| return mUseWideViewport; |
| } |
| |
| /** |
| * Tell the WebView whether it supports multiple windows. TRUE means |
| * that {@link WebChromeClient#onCreateWindow(WebView, boolean, |
| * boolean, Message)} is implemented by the host application. |
| */ |
| public synchronized void setSupportMultipleWindows(boolean support) { |
| if (mSupportMultipleWindows != support) { |
| mSupportMultipleWindows = support; |
| postSync(); |
| } |
| } |
| |
| /** |
| * @return True if the WebView is supporting multiple windows. This means |
| * that {@link WebChromeClient#onCreateWindow(WebView, boolean, |
| * boolean, Message)} is implemented by the host application. |
| */ |
| public synchronized boolean supportMultipleWindows() { |
| return mSupportMultipleWindows; |
| } |
| |
| /** |
| * Set the underlying layout algorithm. This will cause a relayout of the |
| * WebView. |
| * @param l A LayoutAlgorithm enum specifying the algorithm to use. |
| * @see WebSettings.LayoutAlgorithm |
| */ |
| public synchronized void setLayoutAlgorithm(LayoutAlgorithm l) { |
| // XXX: This will only be affective if libwebcore was built with |
| // ANDROID_LAYOUT defined. |
| if (mLayoutAlgorithm != l) { |
| mLayoutAlgorithm = l; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Return the current layout algorithm. |
| * @return LayoutAlgorithm enum value describing the layout algorithm |
| * being used. |
| * @see WebSettings.LayoutAlgorithm |
| */ |
| public synchronized LayoutAlgorithm getLayoutAlgorithm() { |
| return mLayoutAlgorithm; |
| } |
| |
| /** |
| * Set the standard font family name. |
| * @param font A font family name. |
| */ |
| public synchronized void setStandardFontFamily(String font) { |
| if (font != null && !font.equals(mStandardFontFamily)) { |
| mStandardFontFamily = font; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Get the standard font family name. |
| * @return The standard font family name as a string. |
| */ |
| public synchronized String getStandardFontFamily() { |
| return mStandardFontFamily; |
| } |
| |
| /** |
| * Set the fixed font family name. |
| * @param font A font family name. |
| */ |
| public synchronized void setFixedFontFamily(String font) { |
| if (font != null && !font.equals(mFixedFontFamily)) { |
| mFixedFontFamily = font; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Get the fixed font family name. |
| * @return The fixed font family name as a string. |
| */ |
| public synchronized String getFixedFontFamily() { |
| return mFixedFontFamily; |
| } |
| |
| /** |
| * Set the sans-serif font family name. |
| * @param font A font family name. |
| */ |
| public synchronized void setSansSerifFontFamily(String font) { |
| if (font != null && !font.equals(mSansSerifFontFamily)) { |
| mSansSerifFontFamily = font; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Get the sans-serif font family name. |
| * @return The sans-serif font family name as a string. |
| */ |
| public synchronized String getSansSerifFontFamily() { |
| return mSansSerifFontFamily; |
| } |
| |
| /** |
| * Set the serif font family name. |
| * @param font A font family name. |
| */ |
| public synchronized void setSerifFontFamily(String font) { |
| if (font != null && !font.equals(mSerifFontFamily)) { |
| mSerifFontFamily = font; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Get the serif font family name. |
| * @return The serif font family name as a string. |
| */ |
| public synchronized String getSerifFontFamily() { |
| return mSerifFontFamily; |
| } |
| |
| /** |
| * Set the cursive font family name. |
| * @param font A font family name. |
| */ |
| public synchronized void setCursiveFontFamily(String font) { |
| if (font != null && !font.equals(mCursiveFontFamily)) { |
| mCursiveFontFamily = font; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Get the cursive font family name. |
| * @return The cursive font family name as a string. |
| */ |
| public synchronized String getCursiveFontFamily() { |
| return mCursiveFontFamily; |
| } |
| |
| /** |
| * Set the fantasy font family name. |
| * @param font A font family name. |
| */ |
| public synchronized void setFantasyFontFamily(String font) { |
| if (font != null && !font.equals(mFantasyFontFamily)) { |
| mFantasyFontFamily = font; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Get the fantasy font family name. |
| * @return The fantasy font family name as a string. |
| */ |
| public synchronized String getFantasyFontFamily() { |
| return mFantasyFontFamily; |
| } |
| |
| /** |
| * Set the minimum font size. |
| * @param size A non-negative integer between 1 and 72. |
| * Any number outside the specified range will be pinned. |
| */ |
| public synchronized void setMinimumFontSize(int size) { |
| size = pin(size); |
| if (mMinimumFontSize != size) { |
| mMinimumFontSize = size; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Get the minimum font size. |
| * @return A non-negative integer between 1 and 72. |
| */ |
| public synchronized int getMinimumFontSize() { |
| return mMinimumFontSize; |
| } |
| |
| /** |
| * Set the minimum logical font size. |
| * @param size A non-negative integer between 1 and 72. |
| * Any number outside the specified range will be pinned. |
| */ |
| public synchronized void setMinimumLogicalFontSize(int size) { |
| size = pin(size); |
| if (mMinimumLogicalFontSize != size) { |
| mMinimumLogicalFontSize = size; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Get the minimum logical font size. |
| * @return A non-negative integer between 1 and 72. |
| */ |
| public synchronized int getMinimumLogicalFontSize() { |
| return mMinimumLogicalFontSize; |
| } |
| |
| /** |
| * Set the default font size. |
| * @param size A non-negative integer between 1 and 72. |
| * Any number outside the specified range will be pinned. |
| */ |
| public synchronized void setDefaultFontSize(int size) { |
| size = pin(size); |
| if (mDefaultFontSize != size) { |
| mDefaultFontSize = size; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Get the default font size. |
| * @return A non-negative integer between 1 and 72. |
| */ |
| public synchronized int getDefaultFontSize() { |
| return mDefaultFontSize; |
| } |
| |
| /** |
| * Set the default fixed font size. |
| * @param size A non-negative integer between 1 and 72. |
| * Any number outside the specified range will be pinned. |
| */ |
| public synchronized void setDefaultFixedFontSize(int size) { |
| size = pin(size); |
| if (mDefaultFixedFontSize != size) { |
| mDefaultFixedFontSize = size; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Get the default fixed font size. |
| * @return A non-negative integer between 1 and 72. |
| */ |
| public synchronized int getDefaultFixedFontSize() { |
| return mDefaultFixedFontSize; |
| } |
| |
| /** |
| * Tell the WebView to load image resources automatically. |
| * @param flag True if the WebView should load images automatically. |
| */ |
| public synchronized void setLoadsImagesAutomatically(boolean flag) { |
| if (mLoadsImagesAutomatically != flag) { |
| mLoadsImagesAutomatically = flag; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Return true if the WebView will load image resources automatically. |
| * @return True if the WebView loads images automatically. |
| */ |
| public synchronized boolean getLoadsImagesAutomatically() { |
| return mLoadsImagesAutomatically; |
| } |
| |
| /** |
| * Tell the WebView to block network image. This is only checked when |
| * getLoadsImagesAutomatically() is true. |
| * @param flag True if the WebView should block network image |
| */ |
| public synchronized void setBlockNetworkImage(boolean flag) { |
| if (mBlockNetworkImage != flag) { |
| mBlockNetworkImage = flag; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Return true if the WebView will block network image. |
| * @return True if the WebView blocks network image. |
| */ |
| public synchronized boolean getBlockNetworkImage() { |
| return mBlockNetworkImage; |
| } |
| |
| /** |
| * @hide |
| * Tell the WebView to block all network load requests. |
| * @param flag True if the WebView should block all network loads |
| */ |
| public synchronized void setBlockNetworkLoads(boolean flag) { |
| if (mBlockNetworkLoads != flag) { |
| mBlockNetworkLoads = flag; |
| verifyNetworkAccess(); |
| } |
| } |
| |
| /** |
| * @hide |
| * Return true if the WebView will block all network loads. |
| * @return True if the WebView blocks all network loads. |
| */ |
| public synchronized boolean getBlockNetworkLoads() { |
| return mBlockNetworkLoads; |
| } |
| |
| |
| private void verifyNetworkAccess() { |
| if (!mBlockNetworkLoads) { |
| if (mContext.checkPermission("android.permission.INTERNET", |
| android.os.Process.myPid(), android.os.Process.myUid()) != |
| PackageManager.PERMISSION_GRANTED) { |
| throw new SecurityException |
| ("Permission denied - " + |
| "application missing INTERNET permission"); |
| } |
| } |
| } |
| |
| /** |
| * Tell the WebView to enable javascript execution. |
| * @param flag True if the WebView should execute javascript. |
| */ |
| public synchronized void setJavaScriptEnabled(boolean flag) { |
| if (mJavaScriptEnabled != flag) { |
| mJavaScriptEnabled = flag; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Tell the WebView to enable plugins. |
| * @param flag True if the WebView should load plugins. |
| */ |
| public synchronized void setPluginsEnabled(boolean flag) { |
| if (mPluginsEnabled != flag) { |
| mPluginsEnabled = flag; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Set a custom path to plugins used by the WebView. The client |
| * must ensure it exists before this call. |
| * @param pluginsPath String path to the directory containing plugins. |
| */ |
| public synchronized void setPluginsPath(String pluginsPath) { |
| if (pluginsPath != null && !pluginsPath.equals(mPluginsPath)) { |
| mPluginsPath = pluginsPath; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Return true if javascript is enabled. |
| * @return True if javascript is enabled. |
| */ |
| public synchronized boolean getJavaScriptEnabled() { |
| return mJavaScriptEnabled; |
| } |
| |
| /** |
| * Return true if plugins are enabled. |
| * @return True if plugins are enabled. |
| */ |
| public synchronized boolean getPluginsEnabled() { |
| return mPluginsEnabled; |
| } |
| |
| /** |
| * Return the current path used for plugins in the WebView. |
| * @return The string path to the WebView plugins. |
| */ |
| public synchronized String getPluginsPath() { |
| return mPluginsPath; |
| } |
| |
| /** |
| * Tell javascript to open windows automatically. This applies to the |
| * javascript function window.open(). |
| * @param flag True if javascript can open windows automatically. |
| */ |
| public synchronized void setJavaScriptCanOpenWindowsAutomatically( |
| boolean flag) { |
| if (mJavaScriptCanOpenWindowsAutomatically != flag) { |
| mJavaScriptCanOpenWindowsAutomatically = flag; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Return true if javascript can open windows automatically. |
| * @return True if javascript can open windows automatically during |
| * window.open(). |
| */ |
| public synchronized boolean getJavaScriptCanOpenWindowsAutomatically() { |
| return mJavaScriptCanOpenWindowsAutomatically; |
| } |
| |
| /** |
| * Set the default text encoding name to use when decoding html pages. |
| * @param encoding The text encoding name. |
| */ |
| public synchronized void setDefaultTextEncodingName(String encoding) { |
| if (encoding != null && !encoding.equals(mDefaultTextEncoding)) { |
| mDefaultTextEncoding = encoding; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Get the default text encoding name. |
| * @return The default text encoding name as a string. |
| */ |
| public synchronized String getDefaultTextEncodingName() { |
| return mDefaultTextEncoding; |
| } |
| |
| /** |
| * Set the WebView's user-agent string. If the string "ua" is null or empty, |
| * it will use the system default user-agent string. |
| */ |
| public synchronized void setUserAgentString(String ua) { |
| if (ua == null || ua.length() == 0) { |
| synchronized(sLockForLocaleSettings) { |
| Locale currentLocale = Locale.getDefault(); |
| if (!sLocale.equals(currentLocale)) { |
| sLocale = currentLocale; |
| mAcceptLanguage = getCurrentAcceptLanguage(); |
| } |
| } |
| ua = getCurrentUserAgent(); |
| mUseDefaultUserAgent = true; |
| } else { |
| mUseDefaultUserAgent = false; |
| } |
| |
| if (!ua.equals(mUserAgent)) { |
| mUserAgent = ua; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Return the WebView's user-agent string. |
| */ |
| public synchronized String getUserAgentString() { |
| if (DESKTOP_USERAGENT.equals(mUserAgent) || |
| IPHONE_USERAGENT.equals(mUserAgent) || |
| !mUseDefaultUserAgent) { |
| return mUserAgent; |
| } |
| |
| boolean doPostSync = false; |
| synchronized(sLockForLocaleSettings) { |
| Locale currentLocale = Locale.getDefault(); |
| if (!sLocale.equals(currentLocale)) { |
| sLocale = currentLocale; |
| mUserAgent = getCurrentUserAgent(); |
| mAcceptLanguage = getCurrentAcceptLanguage(); |
| doPostSync = true; |
| } |
| } |
| if (doPostSync) { |
| postSync(); |
| } |
| return mUserAgent; |
| } |
| |
| /* package api to grab the Accept Language string. */ |
| /*package*/ synchronized String getAcceptLanguage() { |
| synchronized(sLockForLocaleSettings) { |
| Locale currentLocale = Locale.getDefault(); |
| if (!sLocale.equals(currentLocale)) { |
| sLocale = currentLocale; |
| mAcceptLanguage = getCurrentAcceptLanguage(); |
| } |
| } |
| return mAcceptLanguage; |
| } |
| |
| /** |
| * Tell the WebView whether it needs to set a node to have focus when |
| * {@link WebView#requestFocus(int, android.graphics.Rect)} is called. |
| * |
| * @param flag |
| */ |
| public void setNeedInitialFocus(boolean flag) { |
| if (mNeedInitialFocus != flag) { |
| mNeedInitialFocus = flag; |
| } |
| } |
| |
| /* Package api to get the choice whether it needs to set initial focus. */ |
| /* package */ boolean getNeedInitialFocus() { |
| return mNeedInitialFocus; |
| } |
| |
| /** |
| * Set the priority of the Render thread. Unlike the other settings, this |
| * one only needs to be called once per process. |
| * |
| * @param priority RenderPriority, can be normal, high or low. |
| */ |
| public synchronized void setRenderPriority(RenderPriority priority) { |
| if (mRenderPriority != priority) { |
| mRenderPriority = priority; |
| mEventHandler.sendMessage(Message.obtain(null, |
| EventHandler.PRIORITY)); |
| } |
| } |
| |
| /** |
| * Override the way the cache is used. The way the cache is used is based |
| * on the navigation option. For a normal page load, the cache is checked |
| * and content is re-validated as needed. When navigating back, content is |
| * not revalidated, instead the content is just pulled from the cache. |
| * This function allows the client to override this behavior. |
| * @param mode One of the LOAD_ values. |
| */ |
| public void setCacheMode(int mode) { |
| if (mode != mOverrideCacheMode) { |
| mOverrideCacheMode = mode; |
| } |
| } |
| |
| /** |
| * Return the current setting for overriding the cache mode. For a full |
| * description, see the {@link #setCacheMode(int)} function. |
| */ |
| public int getCacheMode() { |
| return mOverrideCacheMode; |
| } |
| |
| /** |
| * If set, webkit alternately shrinks and expands images viewed outside |
| * of an HTML page to fit the screen. This conflicts with attempts by |
| * the UI to zoom in and out of an image, so it is set false by default. |
| * @param shrink Set true to let webkit shrink the standalone image to fit. |
| * {@hide} |
| */ |
| public void setShrinksStandaloneImagesToFit(boolean shrink) { |
| if (mShrinksStandaloneImagesToFit != shrink) { |
| mShrinksStandaloneImagesToFit = shrink; |
| postSync(); |
| } |
| } |
| |
| /** |
| * Transfer messages from the queue to the new WebCoreThread. Called from |
| * WebCore thread. |
| */ |
| /*package*/ |
| synchronized void syncSettingsAndCreateHandler(BrowserFrame frame) { |
| mBrowserFrame = frame; |
| if (WebView.DEBUG) { |
| junit.framework.Assert.assertTrue(frame.mNativeFrame != 0); |
| } |
| nativeSync(frame.mNativeFrame); |
| mSyncPending = false; |
| mEventHandler.createHandler(); |
| } |
| |
| private int pin(int size) { |
| // FIXME: 72 is just an arbitrary max text size value. |
| if (size < 1) { |
| return 1; |
| } else if (size > 72) { |
| return 72; |
| } |
| return size; |
| } |
| |
| /* Post a SYNC message to handle syncing the native settings. */ |
| private synchronized void postSync() { |
| // Only post if a sync is not pending |
| if (!mSyncPending) { |
| mSyncPending = mEventHandler.sendMessage( |
| Message.obtain(null, EventHandler.SYNC)); |
| } |
| } |
| |
| // Synchronize the native and java settings. |
| private native void nativeSync(int nativeFrame); |
| } |