/*
* Copyright (C) 2010 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.app.SearchManager;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.nfc.NfcAdapter;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.Browser;
import android.provider.MediaStore;
import android.speech.RecognizerResultsIntent;
import android.text.TextUtils;
import android.util.Patterns;
import com.android.browser.UI.ComboViews;
import com.android.browser.search.SearchEngine;
import com.android.common.Search;
import com.android.common.speech.LoggingEvents;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
/**
* Handle all browser related intents
*/
public class IntentHandler {
// "source" parameter for Google search suggested by the browser
final static String GOOGLE_SEARCH_SOURCE_SUGGEST = "browser-suggest";
// "source" parameter for Google search from unknown source
final static String GOOGLE_SEARCH_SOURCE_UNKNOWN = "unknown";
/* package */ static final UrlData EMPTY_URL_DATA = new UrlData(null);
private Activity mActivity;
private Controller mController;
private TabControl mTabControl;
private BrowserSettings mSettings;
public IntentHandler(Activity browser, Controller controller) {
mActivity = browser;
mController = controller;
mTabControl = mController.getTabControl();
mSettings = controller.getSettings();
}
void onNewIntent(Intent intent) {
Tab current = mTabControl.getCurrentTab();
// When a tab is closed on exit, the current tab index is set to -1.
// Reset before proceed as Browser requires the current tab to be set.
if (current == null) {
// Try to reset the tab in case the index was incorrect.
current = mTabControl.getTab(0);
if (current == null) {
// No tabs at all so just ignore this intent.
return;
}
mController.setActiveTab(current);
}
final String action = intent.getAction();
final int flags = intent.getFlags();
if (Intent.ACTION_MAIN.equals(action) ||
(flags & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) != 0) {
// just resume the browser
return;
}
if (BrowserActivity.ACTION_SHOW_BOOKMARKS.equals(action)) {
mController.bookmarksOrHistoryPicker(ComboViews.Bookmarks);
return;
}
// In case the SearchDialog is open.
((SearchManager) mActivity.getSystemService(Context.SEARCH_SERVICE))
.stopSearch();
boolean activateVoiceSearch = RecognizerResultsIntent
.ACTION_VOICE_SEARCH_RESULTS.equals(action);
if (Intent.ACTION_VIEW.equals(action)
|| NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action)
|| Intent.ACTION_SEARCH.equals(action)
|| MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action)
|| Intent.ACTION_WEB_SEARCH.equals(action)
|| activateVoiceSearch) {
if (current.isInVoiceSearchMode()) {
String title = current.getVoiceDisplayTitle();
if (title != null && title.equals(intent.getStringExtra(
SearchManager.QUERY))) {
// The user submitted the same search as the last voice
// search, so do nothing.
return;
}
if (Intent.ACTION_SEARCH.equals(action)
&& current.voiceSearchSourceIsGoogle()) {
Intent logIntent = new Intent(
LoggingEvents.ACTION_LOG_EVENT);
logIntent.putExtra(LoggingEvents.EXTRA_EVENT,
LoggingEvents.VoiceSearch.QUERY_UPDATED);
logIntent.putExtra(
LoggingEvents.VoiceSearch.EXTRA_QUERY_UPDATED_VALUE,
intent.getDataString());
mActivity.sendBroadcast(logIntent);
// Note, onPageStarted will revert the voice title bar
// When http://b/issue?id=2379215 is fixed, we should update
// the title bar here.
}
}
// If this was a search request (e.g. search query directly typed into the address bar),
// pass it on to the default web search provider.
if (handleWebSearchIntent(mActivity, mController, intent)) {
return;
}
UrlData urlData = getUrlDataFromIntent(intent);
if (urlData.isEmpty()) {
urlData = new UrlData(mSettings.getHomePage());
}
if (intent.getBooleanExtra(Browser.EXTRA_CREATE_NEW_TAB, false)
|| urlData.isPreloaded()) {
Tab t = mController.openTab(urlData);
return;
}
/*
* TODO: Don't allow javascript URIs
* 0) If this is a javascript: URI, *always* open a new tab
* 1) If this is a voice search, re-use tab for appId
* If there is no appId, use current tab
* 2) If the URL is already opened, switch to that tab
* 3-phone) Reuse tab with same appId
* 3-tablet) Open new tab
*/
final String appId = intent
.getStringExtra(Browser.EXTRA_APPLICATION_ID);
if (!TextUtils.isEmpty(urlData.mUrl) &&
urlData.mUrl.startsWith("javascript:")) {
// Always open javascript: URIs in new tabs
mController.openTab(urlData);
return;
}
if ((Intent.ACTION_VIEW.equals(action)
// If a voice search has no appId, it means that it came
// from the browser. In that case, reuse the current tab.
|| (activateVoiceSearch && appId != null))
&& !mActivity.getPackageName().equals(appId)) {
if (activateVoiceSearch || !BrowserActivity.isTablet(mActivity)) {
Tab appTab = mTabControl.getTabFromAppId(appId);
if (appTab != null) {
mController.reuseTab(appTab, urlData);
return;
}
}
// No matching application tab, try to find a regular tab
// with a matching url.
Tab appTab = mTabControl.findTabWithUrl(urlData.mUrl);
if (appTab != null) {
// Transfer ownership
appTab.setAppId(appId);
if (current != appTab) {
mController.switchToTab(appTab);
}
// Otherwise, we are already viewing the correct tab.
} else {
// if FLAG_ACTIVITY_BROUGHT_TO_FRONT flag is on, the url
// will be opened in a new tab unless we have reached
// MAX_TABS. Then the url will be opened in the current
// tab. If a new tab is created, it will have "true" for
// exit on close.
Tab tab = mController.openTab(urlData);
if (tab != null) {
tab.setAppId(appId);
if ((intent.getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT) != 0) {
tab.setCloseOnBack(true);
}
}
}
} else {
if (!urlData.isEmpty()
&& urlData.mUrl.startsWith("about:debug")) {
if ("about:debug.dom".equals(urlData.mUrl)) {
current.getWebView().dumpDomTree(false);
} else if ("about:debug.dom.file".equals(urlData.mUrl)) {
current.getWebView().dumpDomTree(true);
} else if ("about:debug.render".equals(urlData.mUrl)) {
current.getWebView().dumpRenderTree(false);
} else if ("about:debug.render.file".equals(urlData.mUrl)) {
current.getWebView().dumpRenderTree(true);
} else if ("about:debug.display".equals(urlData.mUrl)) {
current.getWebView().dumpDisplayTree();
} else if ("about:debug.nav".equals(urlData.mUrl)) {
current.getWebView().debugDump();
} else {
mSettings.toggleDebugSettings();
}
return;
}
// Get rid of the subwindow if it exists
mController.dismissSubWindow(current);
// If the current Tab is being used as an application tab,
// remove the association, since the new Intent means that it is
// no longer associated with that application.
current.setAppId(null);
mController.loadUrlDataIn(current, urlData);
}
}
}
protected static UrlData getUrlDataFromIntent(Intent intent) {
String url = "";
Map<String, String> headers = null;
PreloadedTabControl preloaded = null;
String preloadedSearchBoxQuery = null;
if (intent != null
&& (intent.getFlags() & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) == 0) {
final String action = intent.getAction();
if (Intent.ACTION_VIEW.equals(action) ||
NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action)) {
url = UrlUtils.smartUrlFilter(intent.getData());
if (url != null && url.startsWith("http")) {
final Bundle pairs = intent
.getBundleExtra(Browser.EXTRA_HEADERS);
if (pairs != null && !pairs.isEmpty()) {
Iterator<String> iter = pairs.keySet().iterator();
headers = new HashMap<String, String>();
while (iter.hasNext()) {
String key = iter.next();
headers.put(key, pairs.getString(key));
}
}
}
if (intent.hasExtra(PreloadRequestReceiver.EXTRA_PRELOAD_ID)) {
String id = intent.getStringExtra(PreloadRequestReceiver.EXTRA_PRELOAD_ID);
preloadedSearchBoxQuery = intent.getStringExtra(
PreloadRequestReceiver.EXTRA_SEARCHBOX_SETQUERY);
preloaded = Preloader.getInstance().getPreloadedTab(id);
}
} else if (Intent.ACTION_SEARCH.equals(action)
|| MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action)
|| Intent.ACTION_WEB_SEARCH.equals(action)) {
url = intent.getStringExtra(SearchManager.QUERY);
if (url != null) {
// In general, we shouldn't modify URL from Intent.
// But currently, we get the user-typed URL from search box as well.
url = UrlUtils.fixUrl(url);
url = UrlUtils.smartUrlFilter(url);
String searchSource = "&source=android-" + GOOGLE_SEARCH_SOURCE_SUGGEST + "&";
if (url.contains(searchSource)) {
String source = null;
final Bundle appData = intent.getBundleExtra(SearchManager.APP_DATA);
if (appData != null) {
source = appData.getString(Search.SOURCE);
}
if (TextUtils.isEmpty(source)) {
source = GOOGLE_SEARCH_SOURCE_UNKNOWN;
}
url = url.replace(searchSource, "&source=android-"+source+"&");
}
}
}
}
return new UrlData(url, headers, intent, preloaded, preloadedSearchBoxQuery);
}
/**
* Launches the default web search activity with the query parameters if the given intent's data
* are identified as plain search terms and not URLs/shortcuts.
* @return true if the intent was handled and web search activity was launched, false if not.
*/
static boolean handleWebSearchIntent(Activity activity,
Controller controller, Intent intent) {
if (intent == null) return false;
String url = null;
final String action = intent.getAction();
if (RecognizerResultsIntent.ACTION_VOICE_SEARCH_RESULTS.equals(
action)) {
return false;
}
if (Intent.ACTION_VIEW.equals(action)) {
Uri data = intent.getData();
if (data != null) url = data.toString();
} else if (Intent.ACTION_SEARCH.equals(action)
|| MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action)
|| Intent.ACTION_WEB_SEARCH.equals(action)) {
url = intent.getStringExtra(SearchManager.QUERY);
}
return handleWebSearchRequest(activity, controller, url,
intent.getBundleExtra(SearchManager.APP_DATA),
intent.getStringExtra(SearchManager.EXTRA_DATA_KEY));
}
/**
* Launches the default web search activity with the query parameters if the given url string
* was identified as plain search terms and not URL/shortcut.
* @return true if the request was handled and web search activity was launched, false if not.
*/
private static boolean handleWebSearchRequest(Activity activity,
Controller controller, String inUrl, Bundle appData,
String extraData) {
if (inUrl == null) return false;
// In general, we shouldn't modify URL from Intent.
// But currently, we get the user-typed URL from search box as well.
String url = UrlUtils.fixUrl(inUrl).trim();
if (TextUtils.isEmpty(url)) return false;
// URLs are handled by the regular flow of control, so
// return early.
if (Patterns.WEB_URL.matcher(url).matches()
|| UrlUtils.ACCEPTED_URI_SCHEMA.matcher(url).matches()) {
return false;
}
final ContentResolver cr = activity.getContentResolver();
final String newUrl = url;
if (controller == null || controller.getTabControl() == null
|| controller.getTabControl().getCurrentWebView() == null
|| !controller.getTabControl().getCurrentWebView()
.isPrivateBrowsingEnabled()) {
new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... unused) {
Browser.addSearchUrl(cr, newUrl);
return null;
}
}.execute();
}
SearchEngine searchEngine = BrowserSettings.getInstance().getSearchEngine();
if (searchEngine == null) return false;
searchEngine.startSearch(activity, url, appData, extraData);
return true;
}
/**
* A UrlData class to abstract how the content will be set to WebView.
* This base class uses loadUrl to show the content.
*/
static class UrlData {
final String mUrl;
final Map<String, String> mHeaders;
final Intent mVoiceIntent;
final PreloadedTabControl mPreloadedTab;
final String mSearchBoxQueryToSubmit;
UrlData(String url) {
this.mUrl = url;
this.mHeaders = null;
this.mVoiceIntent = null;
this.mPreloadedTab = null;
this.mSearchBoxQueryToSubmit = null;
}
UrlData(String url, Map<String, String> headers, Intent intent) {
this(url, headers, intent, null, null);
}
UrlData(String url, Map<String, String> headers, Intent intent,
PreloadedTabControl preloaded, String searchBoxQueryToSubmit) {
this.mUrl = url;
this.mHeaders = headers;
if (RecognizerResultsIntent.ACTION_VOICE_SEARCH_RESULTS
.equals(intent.getAction())) {
this.mVoiceIntent = intent;
} else {
this.mVoiceIntent = null;
}
this.mPreloadedTab = preloaded;
this.mSearchBoxQueryToSubmit = searchBoxQueryToSubmit;
}
boolean isEmpty() {
return mVoiceIntent == null && (mUrl == null || mUrl.length() == 0);
}
boolean isPreloaded() {
return mPreloadedTab != null;
}
PreloadedTabControl getPreloadedTab() {
return mPreloadedTab;
}
String getSearchBoxQueryToSubmit() {
return mSearchBoxQueryToSubmit;
}
}
}