/* * 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.content.ActivityNotFoundException; import android.content.Intent; import android.content.IntentFilter; import android.content.pm.PackageManager; import android.content.pm.ResolveInfo; import android.net.Uri; import android.util.Log; import android.webkit.WebView; import java.net.URISyntaxException; import java.util.List; import java.util.regex.Matcher; /** * */ public class UrlHandler { // Use in overrideUrlLoading /* package */ final static String SCHEME_WTAI = "wtai://wp/"; /* package */ final static String SCHEME_WTAI_MC = "wtai://wp/mc;"; /* package */ final static String SCHEME_WTAI_SD = "wtai://wp/sd;"; /* package */ final static String SCHEME_WTAI_AP = "wtai://wp/ap;"; Controller mController; Activity mActivity; public UrlHandler(Controller controller) { mController = controller; mActivity = mController.getActivity(); } boolean shouldOverrideUrlLoading(Tab tab, WebView view, String url) { if (view.isPrivateBrowsingEnabled()) { // Don't allow urls to leave the browser app when in // private browsing mode return false; } if (url.startsWith(SCHEME_WTAI)) { // wtai://wp/mc;number // number=string(phone-number) if (url.startsWith(SCHEME_WTAI_MC)) { Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(WebView.SCHEME_TEL + url.substring(SCHEME_WTAI_MC.length()))); mActivity.startActivity(intent); // before leaving BrowserActivity, close the empty child tab. // If a new tab is created through JavaScript open to load this // url, we would like to close it as we will load this url in a // different Activity. mController.closeEmptyChildTab(); return true; } // wtai://wp/sd;dtmf // dtmf=string(dialstring) if (url.startsWith(SCHEME_WTAI_SD)) { // TODO: only send when there is active voice connection return false; } // wtai://wp/ap;number;name // number=string(phone-number) // name=string if (url.startsWith(SCHEME_WTAI_AP)) { // TODO return false; } } // The "about:" schemes are internal to the browser; don't want these to // be dispatched to other apps. if (url.startsWith("about:")) { return false; } if (startActivityForUrl(url)) { return true; } if (handleMenuClick(tab, url)) { return true; } return false; } boolean startActivityForUrl(String url) { Intent intent; // perform generic parsing of the URI to turn it into an Intent. try { intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME); } catch (URISyntaxException ex) { Log.w("Browser", "Bad URI " + url + ": " + ex.getMessage()); return false; } // check whether the intent can be resolved. If not, we will see // whether we can download it from the Market. if (mActivity.getPackageManager().resolveActivity(intent, 0) == null) { String packagename = intent.getPackage(); if (packagename != null) { intent = new Intent(Intent.ACTION_VIEW, Uri .parse("market://search?q=pname:" + packagename)); intent.addCategory(Intent.CATEGORY_BROWSABLE); mActivity.startActivity(intent); // before leaving BrowserActivity, close the empty child tab. // If a new tab is created through JavaScript open to load this // url, we would like to close it as we will load this url in a // different Activity. mController.closeEmptyChildTab(); return true; } else { return false; } } // sanitize the Intent, ensuring web pages can not bypass browser // security (only access to BROWSABLE activities). intent.addCategory(Intent.CATEGORY_BROWSABLE); intent.setComponent(null); // Make sure webkit can handle it internally before checking for specialized // handlers. If webkit can't handle it internally, we need to call // startActivityIfNeeded Matcher m = UrlUtils.ACCEPTED_URI_SCHEMA.matcher(url); if (m.matches() && !isSpecializedHandlerAvailable(intent)) { return false; } try { if (mActivity.startActivityIfNeeded(intent, -1)) { // before leaving BrowserActivity, close the empty child tab. // If a new tab is created through JavaScript open to load this // url, we would like to close it as we will load this url in a // different Activity. mController.closeEmptyChildTab(); return true; } } catch (ActivityNotFoundException ex) { // ignore the error. If no application can handle the URL, // eg about:blank, assume the browser can handle it. } return false; } /** * Search for intent handlers that are specific to this URL * aka, specialized apps like google maps or youtube */ private boolean isSpecializedHandlerAvailable(Intent intent) { PackageManager pm = mActivity.getPackageManager(); List handlers = pm.queryIntentActivities(intent, PackageManager.GET_RESOLVED_FILTER); if (handlers == null || handlers.size() == 0) { return false; } for (ResolveInfo resolveInfo : handlers) { IntentFilter filter = resolveInfo.filter; if (filter == null) { // No intent filter matches this intent? // Error on the side of staying in the browser, ignore continue; } if (filter.countDataAuthorities() == 0 || filter.countDataPaths() == 0) { // Generic handler, skip continue; } return true; } return false; } // In case a physical keyboard is attached, handle clicks with the menu key // depressed by opening in a new tab boolean handleMenuClick(Tab tab, String url) { if (mController.isMenuDown()) { mController.openTab(tab, url, false); mActivity.closeOptionsMenu(); return true; } return false; } }