2 * Copyright (C) 2008 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package org.xwalk.core.internal;
19 import android.app.Activity;
20 import android.content.Context;
21 import android.content.pm.ActivityInfo;
22 import android.graphics.Bitmap;
23 import android.net.Uri;
24 import android.os.Message;
25 import android.view.Gravity;
26 import android.view.View;
27 import android.view.ViewGroup;
28 import android.webkit.WebStorage;
29 import android.webkit.ConsoleMessage;
30 import android.webkit.ValueCallback;
31 import android.widget.FrameLayout;
34 * It's an internal legacy class which is to handle kinds of ui related
35 * callback functions. It only handles those which are not exposed to
36 * external users compared to XWalkUIClientInternal.
40 public class XWalkWebChromeClient {
41 private Context mContext;
42 private View mCustomXWalkView;
43 private XWalkViewInternal mXWalkView;
44 private XWalkWebChromeClient.CustomViewCallback mCustomViewCallback;
45 private XWalkContentsClient mContentsClient = null;
46 private long XWALK_MAX_QUOTA = 1024 * 1024 * 100;
47 private final int INVALID_ORIENTATION = -2;
48 private int mPreOrientation = INVALID_ORIENTATION;
50 public XWalkWebChromeClient(XWalkViewInternal view) {
51 mContext = view.getContext();
55 void setContentsClient(XWalkContentsClient client) {
56 mContentsClient = client;
60 * Notify the host application of a new favicon for the current page.
61 * @param view The XWalkViewInternal that initiated the callback.
62 * @param icon A Bitmap containing the favicon for the current page.
64 public void onReceivedIcon(XWalkViewInternal view, Bitmap icon) {}
67 * A callback interface used by the host application to notify
68 * the current page that its custom view has been dismissed.
70 public interface CustomViewCallback {
72 * Invoked when the host application dismisses the
75 public void onCustomViewHidden();
78 private Activity addContentView(View view, CustomViewCallback callback) {
79 Activity activity = mXWalkView.getActivity();
81 if (mCustomXWalkView != null || activity == null) {
82 callback.onCustomViewHidden();
86 mCustomXWalkView = view;
87 mCustomViewCallback = callback;
89 if (mContentsClient != null) {
90 mContentsClient.onToggleFullscreen(true);
93 // Add the video view to the activity's ContentView.
94 activity.getWindow().addContentView(view,
95 new FrameLayout.LayoutParams(
96 ViewGroup.LayoutParams.MATCH_PARENT,
97 ViewGroup.LayoutParams.MATCH_PARENT,
103 * Notify the host application that the current page would
104 * like to show a custom View.
105 * @param view is the View object to be shown.
106 * @param callback is the callback to be invoked if and when the view
109 public void onShowCustomView(View view, CustomViewCallback callback) {
110 addContentView(view, callback);
114 * Notify the host application that the current page would
115 * like to show a custom View in a particular orientation.
116 * @param view is the View object to be shown.
117 * @param requestedOrientation An orientation constant as used in
118 * {@link ActivityInfo#screenOrientation ActivityInfo.screenOrientation}.
119 * @param callback is the callback to be invoked if and when the view
122 public void onShowCustomView(View view, int requestedOrientation,
123 CustomViewCallback callback) {
124 Activity activity = addContentView(view, callback);
125 if (activity == null) return;
127 final int orientation = activity.getResources().getConfiguration().orientation;
129 if (requestedOrientation != orientation &&
130 requestedOrientation >= ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED &&
131 requestedOrientation <= ActivityInfo.SCREEN_ORIENTATION_LOCKED) {
132 mPreOrientation = orientation;
133 activity.setRequestedOrientation(requestedOrientation);
138 * Notify the host application that the current page would
139 * like to hide its custom view.
141 public void onHideCustomView() {
142 Activity activity = mXWalkView.getActivity();
144 if (mCustomXWalkView == null || activity == null) return;
146 if (mContentsClient != null) {
147 mContentsClient.onToggleFullscreen(false);
150 // Remove video view from activity's ContentView.
151 FrameLayout decor = (FrameLayout) activity.getWindow().getDecorView();
152 decor.removeView(mCustomXWalkView);
153 mCustomViewCallback.onCustomViewHidden();
155 if (mPreOrientation != INVALID_ORIENTATION &&
156 mPreOrientation >= ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED &&
157 mPreOrientation <= ActivityInfo.SCREEN_ORIENTATION_LOCKED) {
158 activity.setRequestedOrientation(mPreOrientation);
159 mPreOrientation = INVALID_ORIENTATION;
162 mCustomXWalkView = null;
163 mCustomViewCallback = null;
167 * Tell the client that the quota has been exceeded for the Web SQL Database
168 * API for a particular origin and request a new quota. The client must
169 * respond by invoking the
170 * {@link WebStorage.QuotaUpdater#updateQuota(long) updateQuota(long)}
171 * method of the supplied {@link WebStorage.QuotaUpdater} instance. The
172 * minimum value that can be set for the new quota is the current quota. The
173 * default implementation responds with the current quota, so the quota will
175 * @param url The URL of the page that triggered the notification
176 * @param databaseIdentifier The identifier of the database where the quota
178 * @param quota The quota for the origin, in bytes
179 * @param estimatedDatabaseSize The estimated size of the offending
181 * @param totalQuota The total quota for all origins, in bytes
182 * @param quotaUpdater An instance of {@link WebStorage.QuotaUpdater} which
183 * must be used to inform the XWalkViewInternal of the new quota.
185 // Note that the callback must always be executed at some point to ensure
186 // that the sleeping WebCore thread is woken up.
187 // Since the parameter type WebStorage.QuotaUpdater and this API are
188 // deprecated in Android 4.4, while this parameter type and this API
189 // are still used before Android 4.4, no other API and parameter are
190 // to replace them, suppress the compiling warnings for Android 4.4
191 // due to deprecation.
192 @SuppressWarnings("deprecation")
193 public void onExceededDatabaseQuota(String url, String databaseIdentifier,
194 long quota, long estimatedDatabaseSize, long totalQuota,
195 WebStorage.QuotaUpdater quotaUpdater) {
196 // This default implementation passes the current quota back to WebCore.
197 // WebCore will interpret this that new quota was declined.
198 quotaUpdater.updateQuota(XWALK_MAX_QUOTA);
202 * Tell the client that the quota has been reached for the Application Cache
203 * API and request a new quota. The client must respond by invoking the
204 * {@link WebStorage.QuotaUpdater#updateQuota(long) updateQuota(long)}
205 * method of the supplied {@link WebStorage.QuotaUpdater} instance. The
206 * minimum value that can be set for the new quota is the current quota. The
207 * default implementation responds with the current quota, so the quota will
209 * @param requiredStorage The amount of storage required by the Application
210 * Cache operation that triggered this notification,
212 * @param quota The quota, in bytes
213 * @param quotaUpdater An instance of {@link WebStorage.QuotaUpdater} which
214 * must be used to inform the XWalkViewInternal of the new quota.
216 // Note that the callback must always be executed at some point to ensure
217 // that the sleeping WebCore thread is woken up.
218 // Since the parameter type WebStorage.QuotaUpdater and this API are
219 // deprecated in Android 4.4, while this parameter type and this API
220 // are still used before Android 4.4, no other API and parameter are
221 // to replace them, suppress the compiling warnings for Android 4.4
222 // due to deprecation.
223 @SuppressWarnings("deprecation")
224 public void onReachedMaxAppCacheSize(long requiredStorage, long quota,
225 WebStorage.QuotaUpdater quotaUpdater) {
226 quotaUpdater.updateQuota(XWALK_MAX_QUOTA);
230 * Notify the host application that web content from the specified origin
231 * is attempting to use the Geolocation API, but no permission state is
232 * currently set for that origin. The host application should invoke the
233 * specified callback with the desired permission state. See
234 * {@link GeolocationPermissions} for details.
235 * @param origin The origin of the web content attempting to use the
237 * @param callback The callback to use to set the permission state for the
240 public void onGeolocationPermissionsShowPrompt(String origin,
241 XWalkGeolocationPermissions.Callback callback) {
242 // Allow all origins for geolocation requests here for Crosswalk.
243 // TODO(yongsheng): Need to define a UI prompt?
244 callback.invoke(origin, true, false);
248 * Notify the host application that a request for Geolocation permissions,
249 * made with a previous call to
250 * {@link #onGeolocationPermissionsShowPrompt(String,GeolocationPermissions.Callback) onGeolocationPermissionsShowPrompt()}
251 * has been canceled. Any related UI should therefore be hidden.
253 public void onGeolocationPermissionsHidePrompt() {}
256 * Tell the client that a JavaScript execution timeout has occured. And the
257 * client may decide whether or not to interrupt the execution. If the
258 * client returns true, the JavaScript will be interrupted. If the client
259 * returns false, the execution will continue. Note that in the case of
260 * continuing execution, the timeout counter will be reset, and the callback
261 * will continue to occur if the script does not finish at the next check
263 * @return boolean Whether the JavaScript execution should be interrupted.
265 public boolean onJsTimeout() {
270 * Report a JavaScript error message to the host application. The ChromeClient
271 * should override this to process the log message as they see fit.
272 * @param message The error message to report.
273 * @param lineNumber The line number of the error.
274 * @param sourceID The name of the source file that caused the error.
275 * @deprecated Use {@link #onConsoleMessage(ConsoleMessage) onConsoleMessage(ConsoleMessage)}
279 public void onConsoleMessage(String message, int lineNumber, String sourceID) { }
282 * Report a JavaScript console message to the host application. The ChromeClient
283 * should override this to process the log message as they see fit.
284 * @param consoleMessage Object containing details of the console message.
285 * @return true if the message is handled by the client.
287 public boolean onConsoleMessage(ConsoleMessage consoleMessage) {
288 // Call the old version of this function for backwards compatability.
289 onConsoleMessage(consoleMessage.message(), consoleMessage.lineNumber(),
290 consoleMessage.sourceId());
294 /** Obtains a list of all visited history items, used for link coloring
296 public void getVisitedHistory(ValueCallback<String[]> callback) {
300 * Tell the client that the page being viewed is web app capable,
301 * i.e. has specified the fullscreen-web-app-capable meta tag.
304 public void setInstallableWebApp() { }
307 * Tell the client that the page being viewed has an autofillable
308 * form and the user would like to set a profile up.
309 * @param msg A Message to send once the user has successfully
310 * set up a profile and to inform the WebTextView it should
311 * now autofill using that new profile.
314 public void setupAutoFill(Message msg) { }