IntentHandler.java revision 1461244018a225006a8d4c203f9dfe294ffe94fa
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 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 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 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. 15 */ 16 17 18package com.android.browser; 19 20import com.android.browser.search.SearchEngine; 21import com.android.common.Search; 22import com.android.common.speech.LoggingEvents; 23 24import android.app.Activity; 25import android.app.SearchManager; 26import android.content.ContentResolver; 27import android.content.Context; 28import android.content.Intent; 29import android.net.Uri; 30import android.nfc.NfcAdapter; 31import android.os.AsyncTask; 32import android.os.Bundle; 33import android.provider.Browser; 34import android.provider.MediaStore; 35import android.speech.RecognizerResultsIntent; 36import android.text.TextUtils; 37import android.util.Patterns; 38 39import java.util.HashMap; 40import java.util.Iterator; 41import java.util.Map; 42 43/** 44 * Handle all browser related intents 45 */ 46public class IntentHandler { 47 48 // "source" parameter for Google search suggested by the browser 49 final static String GOOGLE_SEARCH_SOURCE_SUGGEST = "browser-suggest"; 50 // "source" parameter for Google search from unknown source 51 final static String GOOGLE_SEARCH_SOURCE_UNKNOWN = "unknown"; 52 53 /* package */ static final UrlData EMPTY_URL_DATA = new UrlData(null); 54 55 private Activity mActivity; 56 private Controller mController; 57 private TabControl mTabControl; 58 private BrowserSettings mSettings; 59 60 public IntentHandler(Activity browser, Controller controller) { 61 mActivity = browser; 62 mController = controller; 63 mTabControl = mController.getTabControl(); 64 mSettings = controller.getSettings(); 65 } 66 67 void onNewIntent(Intent intent) { 68 Tab current = mTabControl.getCurrentTab(); 69 // When a tab is closed on exit, the current tab index is set to -1. 70 // Reset before proceed as Browser requires the current tab to be set. 71 if (current == null) { 72 // Try to reset the tab in case the index was incorrect. 73 current = mTabControl.getTab(0); 74 if (current == null) { 75 // No tabs at all so just ignore this intent. 76 return; 77 } 78 mController.setActiveTab(current); 79 } 80 final String action = intent.getAction(); 81 final int flags = intent.getFlags(); 82 if (Intent.ACTION_MAIN.equals(action) || 83 (flags & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) != 0) { 84 // just resume the browser 85 return; 86 } 87 if (BrowserActivity.ACTION_SHOW_BOOKMARKS.equals(action)) { 88 mController.bookmarksOrHistoryPicker(false); 89 return; 90 } 91 mController.removeComboView(); 92 93 // In case the SearchDialog is open. 94 ((SearchManager) mActivity.getSystemService(Context.SEARCH_SERVICE)) 95 .stopSearch(); 96 boolean activateVoiceSearch = RecognizerResultsIntent 97 .ACTION_VOICE_SEARCH_RESULTS.equals(action); 98 if (Intent.ACTION_VIEW.equals(action) 99 || NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action) 100 || Intent.ACTION_SEARCH.equals(action) 101 || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action) 102 || Intent.ACTION_WEB_SEARCH.equals(action) 103 || activateVoiceSearch) { 104 if (current.isInVoiceSearchMode()) { 105 String title = current.getVoiceDisplayTitle(); 106 if (title != null && title.equals(intent.getStringExtra( 107 SearchManager.QUERY))) { 108 // The user submitted the same search as the last voice 109 // search, so do nothing. 110 return; 111 } 112 if (Intent.ACTION_SEARCH.equals(action) 113 && current.voiceSearchSourceIsGoogle()) { 114 Intent logIntent = new Intent( 115 LoggingEvents.ACTION_LOG_EVENT); 116 logIntent.putExtra(LoggingEvents.EXTRA_EVENT, 117 LoggingEvents.VoiceSearch.QUERY_UPDATED); 118 logIntent.putExtra( 119 LoggingEvents.VoiceSearch.EXTRA_QUERY_UPDATED_VALUE, 120 intent.getDataString()); 121 mActivity.sendBroadcast(logIntent); 122 // Note, onPageStarted will revert the voice title bar 123 // When http://b/issue?id=2379215 is fixed, we should update 124 // the title bar here. 125 } 126 } 127 // If this was a search request (e.g. search query directly typed into the address bar), 128 // pass it on to the default web search provider. 129 if (handleWebSearchIntent(mActivity, mController, intent)) { 130 return; 131 } 132 133 UrlData urlData = getUrlDataFromIntent(intent); 134 if (urlData.isEmpty()) { 135 urlData = new UrlData(mSettings.getHomePage()); 136 } 137 138 if (intent.getBooleanExtra(Browser.EXTRA_CREATE_NEW_TAB, false) 139 || urlData.isPreloaded()) { 140 Tab t = mController.openTab(urlData); 141 if (t == null && urlData.isPreloaded()) { 142 Tab pre = urlData.getPreloadedTab(); 143 // TODO: check if we need to stop loading 144 pre.destroy(); 145 } 146 return; 147 } 148 /* 149 * TODO: Don't allow javascript URIs 150 * 0) If this is a javascript: URI, *always* open a new tab 151 * 1) If this is a voice search, re-use tab for appId 152 * If there is no appId, use current tab 153 * 2) If the URL is already opened, switch to that tab 154 * 3-phone) Reuse tab with same appId 155 * 3-tablet) Open new tab 156 */ 157 final String appId = intent 158 .getStringExtra(Browser.EXTRA_APPLICATION_ID); 159 if (!TextUtils.isEmpty(urlData.mUrl) && 160 urlData.mUrl.startsWith("javascript:")) { 161 // Always open javascript: URIs in new tabs 162 mController.openTab(urlData); 163 return; 164 } 165 if ((Intent.ACTION_VIEW.equals(action) 166 // If a voice search has no appId, it means that it came 167 // from the browser. In that case, reuse the current tab. 168 || (activateVoiceSearch && appId != null)) 169 && !mActivity.getPackageName().equals(appId)) { 170 if (activateVoiceSearch || !BrowserActivity.isTablet(mActivity)) { 171 Tab appTab = mTabControl.getTabFromAppId(appId); 172 if (appTab != null) { 173 mController.reuseTab(appTab, urlData); 174 return; 175 } 176 } 177 // No matching application tab, try to find a regular tab 178 // with a matching url. 179 Tab appTab = mTabControl.findTabWithUrl(urlData.mUrl); 180 if (appTab != null) { 181 // Transfer ownership 182 appTab.setAppId(appId); 183 if (current != appTab) { 184 mController.switchToTab(appTab); 185 } 186 // Otherwise, we are already viewing the correct tab. 187 } else { 188 // if FLAG_ACTIVITY_BROUGHT_TO_FRONT flag is on, the url 189 // will be opened in a new tab unless we have reached 190 // MAX_TABS. Then the url will be opened in the current 191 // tab. If a new tab is created, it will have "true" for 192 // exit on close. 193 Tab tab = mController.openTab(urlData); 194 if (tab != null) { 195 tab.setAppId(appId); 196 } 197 } 198 } else { 199 if (!urlData.isEmpty() 200 && urlData.mUrl.startsWith("about:debug")) { 201 if ("about:debug.dom".equals(urlData.mUrl)) { 202 current.getWebView().dumpDomTree(false); 203 } else if ("about:debug.dom.file".equals(urlData.mUrl)) { 204 current.getWebView().dumpDomTree(true); 205 } else if ("about:debug.render".equals(urlData.mUrl)) { 206 current.getWebView().dumpRenderTree(false); 207 } else if ("about:debug.render.file".equals(urlData.mUrl)) { 208 current.getWebView().dumpRenderTree(true); 209 } else if ("about:debug.display".equals(urlData.mUrl)) { 210 current.getWebView().dumpDisplayTree(); 211 } else if ("about:debug.nav".equals(urlData.mUrl)) { 212 current.getWebView().debugDump(); 213 } else { 214 mSettings.toggleDebugSettings(); 215 } 216 return; 217 } 218 // Get rid of the subwindow if it exists 219 mController.dismissSubWindow(current); 220 // If the current Tab is being used as an application tab, 221 // remove the association, since the new Intent means that it is 222 // no longer associated with that application. 223 current.setAppId(null); 224 mController.loadUrlDataIn(current, urlData); 225 } 226 } 227 } 228 229 protected static UrlData getUrlDataFromIntent(Intent intent) { 230 String url = ""; 231 Map<String, String> headers = null; 232 Tab preloaded = null; 233 if (intent != null 234 && (intent.getFlags() & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) == 0) { 235 final String action = intent.getAction(); 236 if (Intent.ACTION_VIEW.equals(action) || 237 NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action)) { 238 url = UrlUtils.smartUrlFilter(intent.getData()); 239 if (url != null && url.startsWith("http")) { 240 final Bundle pairs = intent 241 .getBundleExtra(Browser.EXTRA_HEADERS); 242 if (pairs != null && !pairs.isEmpty()) { 243 Iterator<String> iter = pairs.keySet().iterator(); 244 headers = new HashMap<String, String>(); 245 while (iter.hasNext()) { 246 String key = iter.next(); 247 headers.put(key, pairs.getString(key)); 248 } 249 } 250 } 251 if (intent.hasExtra(PreloadRequestReceiver.EXTRA_PRELOAD_ID)) { 252 String id = intent.getStringExtra(PreloadRequestReceiver.EXTRA_PRELOAD_ID); 253 preloaded = Preloader.getInstance().getPreloadedTab(id); 254 } 255 } else if (Intent.ACTION_SEARCH.equals(action) 256 || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action) 257 || Intent.ACTION_WEB_SEARCH.equals(action)) { 258 url = intent.getStringExtra(SearchManager.QUERY); 259 if (url != null) { 260 // In general, we shouldn't modify URL from Intent. 261 // But currently, we get the user-typed URL from search box as well. 262 url = UrlUtils.fixUrl(url); 263 url = UrlUtils.smartUrlFilter(url); 264 String searchSource = "&source=android-" + GOOGLE_SEARCH_SOURCE_SUGGEST + "&"; 265 if (url.contains(searchSource)) { 266 String source = null; 267 final Bundle appData = intent.getBundleExtra(SearchManager.APP_DATA); 268 if (appData != null) { 269 source = appData.getString(Search.SOURCE); 270 } 271 if (TextUtils.isEmpty(source)) { 272 source = GOOGLE_SEARCH_SOURCE_UNKNOWN; 273 } 274 url = url.replace(searchSource, "&source=android-"+source+"&"); 275 } 276 } 277 } 278 } 279 return new UrlData(url, headers, intent, preloaded); 280 } 281 282 /** 283 * Launches the default web search activity with the query parameters if the given intent's data 284 * are identified as plain search terms and not URLs/shortcuts. 285 * @return true if the intent was handled and web search activity was launched, false if not. 286 */ 287 static boolean handleWebSearchIntent(Activity activity, 288 Controller controller, Intent intent) { 289 if (intent == null) return false; 290 291 String url = null; 292 final String action = intent.getAction(); 293 if (RecognizerResultsIntent.ACTION_VOICE_SEARCH_RESULTS.equals( 294 action)) { 295 return false; 296 } 297 if (Intent.ACTION_VIEW.equals(action)) { 298 Uri data = intent.getData(); 299 if (data != null) url = data.toString(); 300 } else if (Intent.ACTION_SEARCH.equals(action) 301 || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action) 302 || Intent.ACTION_WEB_SEARCH.equals(action)) { 303 url = intent.getStringExtra(SearchManager.QUERY); 304 } 305 return handleWebSearchRequest(activity, controller, url, 306 intent.getBundleExtra(SearchManager.APP_DATA), 307 intent.getStringExtra(SearchManager.EXTRA_DATA_KEY)); 308 } 309 310 /** 311 * Launches the default web search activity with the query parameters if the given url string 312 * was identified as plain search terms and not URL/shortcut. 313 * @return true if the request was handled and web search activity was launched, false if not. 314 */ 315 private static boolean handleWebSearchRequest(Activity activity, 316 Controller controller, String inUrl, Bundle appData, 317 String extraData) { 318 if (inUrl == null) return false; 319 320 // In general, we shouldn't modify URL from Intent. 321 // But currently, we get the user-typed URL from search box as well. 322 String url = UrlUtils.fixUrl(inUrl).trim(); 323 if (TextUtils.isEmpty(url)) return false; 324 325 // URLs are handled by the regular flow of control, so 326 // return early. 327 if (Patterns.WEB_URL.matcher(url).matches() 328 || UrlUtils.ACCEPTED_URI_SCHEMA.matcher(url).matches()) { 329 return false; 330 } 331 332 final ContentResolver cr = activity.getContentResolver(); 333 final String newUrl = url; 334 if (controller == null || controller.getTabControl() == null 335 || controller.getTabControl().getCurrentWebView() == null 336 || !controller.getTabControl().getCurrentWebView() 337 .isPrivateBrowsingEnabled()) { 338 new AsyncTask<Void, Void, Void>() { 339 @Override 340 protected Void doInBackground(Void... unused) { 341 Browser.addSearchUrl(cr, newUrl); 342 return null; 343 } 344 }.execute(); 345 } 346 347 SearchEngine searchEngine = BrowserSettings.getInstance().getSearchEngine(); 348 if (searchEngine == null) return false; 349 searchEngine.startSearch(activity, url, appData, extraData); 350 351 return true; 352 } 353 354 /** 355 * A UrlData class to abstract how the content will be set to WebView. 356 * This base class uses loadUrl to show the content. 357 */ 358 static class UrlData { 359 final String mUrl; 360 final Map<String, String> mHeaders; 361 final Intent mVoiceIntent; 362 final Tab mPreloadedTab; 363 364 UrlData(String url) { 365 this.mUrl = url; 366 this.mHeaders = null; 367 this.mVoiceIntent = null; 368 this.mPreloadedTab = null; 369 } 370 371 UrlData(String url, Map<String, String> headers, Intent intent) { 372 this(url, headers, intent, null); 373 } 374 375 UrlData(String url, Map<String, String> headers, Intent intent, Tab preloaded) { 376 this.mUrl = url; 377 this.mHeaders = headers; 378 if (RecognizerResultsIntent.ACTION_VOICE_SEARCH_RESULTS 379 .equals(intent.getAction())) { 380 this.mVoiceIntent = intent; 381 } else { 382 this.mVoiceIntent = null; 383 } 384 mPreloadedTab = preloaded; 385 } 386 387 boolean isEmpty() { 388 return mVoiceIntent == null && (mUrl == null || mUrl.length() == 0); 389 } 390 391 boolean isPreloaded() { 392 return mPreloadedTab != null; 393 } 394 395 Tab getPreloadedTab() { 396 return mPreloadedTab; 397 } 398 } 399 400} 401