2 * Copyright (C) 2008 ZXing authors
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 com.google.zxing.client.android.result;
19 import com.google.zxing.client.android.Contents;
20 import com.google.zxing.client.android.Intents;
21 import com.google.zxing.client.android.LocaleManager;
22 import com.google.zxing.client.android.PreferencesActivity;
23 import com.google.zxing.client.android.R;
24 import com.google.zxing.client.android.book.SearchBookContentsActivity;
25 import com.google.zxing.client.result.ParsedResult;
26 import com.google.zxing.client.result.ParsedResultType;
28 import android.app.Activity;
29 import android.app.AlertDialog;
30 import android.app.SearchManager;
31 import android.content.ActivityNotFoundException;
32 import android.content.DialogInterface;
33 import android.content.Intent;
34 import android.content.SharedPreferences;
35 import android.content.pm.PackageManager;
36 import android.net.Uri;
37 import android.preference.PreferenceManager;
38 import android.provider.Contacts;
40 import java.text.DateFormat;
41 import java.text.ParsePosition;
42 import java.text.SimpleDateFormat;
43 import java.util.Calendar;
44 import java.util.Date;
45 import java.util.GregorianCalendar;
48 * A base class for the Android-specific barcode handlers. These allow the app to polymorphically
49 * suggest the appropriate actions for each data type.
51 * This class also contains a bunch of utility methods to take common actions like opening a URL.
52 * They could easily be moved into a helper object, but it can't be static because the Activity
53 * instance is needed to launch an intent.
55 * @author dswitkin@google.com (Daniel Switkin)
57 public abstract class ResultHandler {
58 private static final DateFormat DATE_FORMAT = new SimpleDateFormat("yyyyMMdd");
59 private static final DateFormat DATE_TIME_FORMAT = new SimpleDateFormat("yyyyMMdd'T'HHmmss");
61 private static final String GOOGLE_SHOPPER_PACKAGE = "com.google.android.apps.shopper";
62 private static final String GOOGLE_SHOPPER_ACTIVITY = GOOGLE_SHOPPER_PACKAGE +
63 ".results.SearchResultsActivity";
64 private static final String MARKET_URI_PREFIX = "market://search?q=pname:";
65 private static final String MARKET_REFERRER_SUFFIX =
66 "&referrer=utm_source%3Dbarcodescanner%26utm_medium%3Dapps%26utm_campaign%3Dscan";
68 public static final int MAX_BUTTON_COUNT = 4;
70 private final ParsedResult result;
71 private final Activity activity;
73 private final DialogInterface.OnClickListener shopperMarketListener =
74 new DialogInterface.OnClickListener() {
75 public void onClick(DialogInterface dialogInterface, int which) {
76 launchIntent(new Intent(Intent.ACTION_VIEW, Uri.parse(MARKET_URI_PREFIX +
77 GOOGLE_SHOPPER_PACKAGE + MARKET_REFERRER_SUFFIX)));
81 ResultHandler(Activity activity, ParsedResult result) {
83 this.activity = activity;
86 ParsedResult getResult() {
91 * Indicates how many buttons the derived class wants shown.
93 * @return The integer button count.
95 public abstract int getButtonCount();
98 * The text of the nth action button.
100 * @param index From 0 to getButtonCount() - 1
101 * @return The button text as a resource ID
103 public abstract int getButtonText(int index);
107 * Execute the action which corresponds to the nth button.
109 * @param index The button that was clicked.
111 public abstract void handleButtonPress(int index);
114 * Create a possibly styled string for the contents of the current barcode.
116 * @return The text to be displayed.
118 public CharSequence getDisplayContents() {
119 String contents = result.getDisplayResult();
120 return contents.replace("\r", "");
124 * A string describing the kind of barcode that was found, e.g. "Found contact info".
126 * @return The resource ID of the string.
128 public abstract int getDisplayTitle();
131 * A convenience method to get the parsed type. Should not be overridden.
133 * @return The parsed type, e.g. URI or ISBN
135 public final ParsedResultType getType() {
136 return result.getType();
140 * Sends an intent to create a new calendar event by prepopulating the Add Event UI. Older
141 * versions of the system have a bug where the event title will not be filled out.
143 * @param summary A description of the event
144 * @param start The start time as yyyyMMdd or yyyyMMdd'T'HHmmss or yyyyMMdd'T'HHmmss'Z'
145 * @param end The end time as yyyyMMdd or yyyyMMdd'T'HHmmss or yyyyMMdd'T'HHmmss'Z'
146 * @param location a text description of the event location
147 * @param description a text description of the event itself
149 final void addCalendarEvent(String summary,
153 String description) {
154 Intent intent = new Intent(Intent.ACTION_EDIT);
155 intent.setType("vnd.android.cursor.item/event");
156 intent.putExtra("beginTime", calculateMilliseconds(start));
157 if (start.length() == 8) {
158 intent.putExtra("allDay", true);
163 intent.putExtra("endTime", calculateMilliseconds(end));
164 intent.putExtra("title", summary);
165 intent.putExtra("eventLocation", location);
166 intent.putExtra("description", description);
167 launchIntent(intent);
170 private static long calculateMilliseconds(String when) {
171 if (when.length() == 8) {
172 // Only contains year/month/day
174 synchronized (DATE_FORMAT) {
175 date = DATE_FORMAT.parse(when, new ParsePosition(0));
177 return date.getTime();
179 // The when string can be local time, or UTC if it ends with a Z
181 synchronized (DATE_TIME_FORMAT) {
182 date = DATE_TIME_FORMAT.parse(when.substring(0, 15), new ParsePosition(0));
184 long milliseconds = date.getTime();
185 if (when.length() == 16 && when.charAt(15) == 'Z') {
186 Calendar calendar = new GregorianCalendar();
187 int offset = calendar.get(Calendar.ZONE_OFFSET) + calendar.get(Calendar.DST_OFFSET);
188 milliseconds += offset;
194 final void addContact(String[] names, String[] phoneNumbers, String[] emails, String note,
195 String address, String org, String title) {
197 // Only use the first name in the array, if present.
198 Intent intent = new Intent(Contacts.Intents.Insert.ACTION, Contacts.People.CONTENT_URI);
199 putExtra(intent, Contacts.Intents.Insert.NAME, names != null ? names[0] : null);
201 int phoneCount = Math.min((phoneNumbers != null) ? phoneNumbers.length : 0,
202 Contents.PHONE_KEYS.length);
203 for (int x = 0; x < phoneCount; x++) {
204 putExtra(intent, Contents.PHONE_KEYS[x], phoneNumbers[x]);
207 int emailCount = Math.min((emails != null) ? emails.length : 0, Contents.EMAIL_KEYS.length);
208 for (int x = 0; x < emailCount; x++) {
209 putExtra(intent, Contents.EMAIL_KEYS[x], emails[x]);
212 putExtra(intent, Contacts.Intents.Insert.NOTES, note);
213 putExtra(intent, Contacts.Intents.Insert.POSTAL, address);
214 putExtra(intent, Contacts.Intents.Insert.COMPANY, org);
215 putExtra(intent, Contacts.Intents.Insert.JOB_TITLE, title);
216 launchIntent(intent);
219 final void shareByEmail(String contents) {
220 sendEmailFromUri("mailto:", null, activity.getString(R.string.msg_share_subject_line), contents);
223 final void sendEmail(String address, String subject, String body) {
224 sendEmailFromUri("mailto:" + address, address, subject, body);
227 // Use public Intent fields rather than private GMail app fields to specify subject and body.
228 final void sendEmailFromUri(String uri, String email, String subject, String body) {
229 Intent intent = new Intent(Intent.ACTION_SEND, Uri.parse(uri));
231 intent.putExtra(Intent.EXTRA_EMAIL, new String[] {email});
233 putExtra(intent, Intent.EXTRA_SUBJECT, subject);
234 putExtra(intent, Intent.EXTRA_TEXT, body);
235 intent.setType("text/plain");
236 launchIntent(intent);
239 final void shareBySMS(String contents) {
240 sendSMSFromUri("smsto:", activity.getString(R.string.msg_share_subject_line) + ":\n" +
244 final void sendSMS(String phoneNumber, String body) {
245 sendSMSFromUri("smsto:" + phoneNumber, body);
248 final void sendSMSFromUri(String uri, String body) {
249 Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.parse(uri));
250 putExtra(intent, "sms_body", body);
251 // Exit the app once the SMS is sent
252 intent.putExtra("compose_mode", true);
253 launchIntent(intent);
256 final void sendMMS(String phoneNumber, String subject, String body) {
257 sendMMSFromUri("mmsto:" + phoneNumber, subject, body);
260 final void sendMMSFromUri(String uri, String subject, String body) {
261 Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.parse(uri));
262 // The Messaging app needs to see a valid subject or else it will treat this an an SMS.
263 if (subject == null || subject.length() == 0) {
264 putExtra(intent, "subject", activity.getString(R.string.msg_default_mms_subject));
266 putExtra(intent, "subject", subject);
268 putExtra(intent, "sms_body", body);
269 intent.putExtra("compose_mode", true);
270 launchIntent(intent);
273 final void dialPhone(String phoneNumber) {
274 launchIntent(new Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + phoneNumber)));
277 final void dialPhoneFromUri(String uri) {
278 launchIntent(new Intent(Intent.ACTION_DIAL, Uri.parse(uri)));
281 final void openMap(String geoURI) {
282 launchIntent(new Intent(Intent.ACTION_VIEW, Uri.parse(geoURI)));
286 * Do a geo search using the address as the query.
288 * @param address The address to find
289 * @param title An optional title, e.g. the name of the business at this address
291 final void searchMap(String address, String title) {
292 String query = address;
293 if (title != null && title.length() > 0) {
294 query = query + " (" + title + ')';
296 launchIntent(new Intent(Intent.ACTION_VIEW, Uri.parse("geo:0,0?q=" + Uri.encode(query))));
299 final void getDirections(double latitude, double longitude) {
300 launchIntent(new Intent(Intent.ACTION_VIEW, Uri.parse("http://maps.google." +
301 LocaleManager.getCountryTLD() + "/maps?f=d&daddr=" + latitude + ',' + longitude)));
304 // Uses the mobile-specific version of Product Search, which is formatted for small screens.
305 final void openProductSearch(String upc) {
306 Uri uri = Uri.parse("http://www.google." + LocaleManager.getProductSearchCountryTLD() +
307 "/m/products?q=" + upc + "&source=zxing");
308 launchIntent(new Intent(Intent.ACTION_VIEW, uri));
311 final void openBookSearch(String isbn) {
312 Uri uri = Uri.parse("http://books.google." + LocaleManager.getBookSearchCountryTLD() +
313 "/books?vid=isbn" + isbn);
314 launchIntent(new Intent(Intent.ACTION_VIEW, uri));
317 final void searchBookContents(String isbn) {
318 Intent intent = new Intent(Intents.SearchBookContents.ACTION);
319 intent.setClassName(activity, SearchBookContentsActivity.class.getName());
320 putExtra(intent, Intents.SearchBookContents.ISBN, isbn);
321 launchIntent(intent);
324 final void openURL(String url) {
325 launchIntent(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
328 final void webSearch(String query) {
329 Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);
330 intent.putExtra("query", query);
331 launchIntent(intent);
334 final void openGoogleShopper(String query) {
336 activity.getPackageManager().getPackageInfo(GOOGLE_SHOPPER_PACKAGE, 0);
337 // If we didn't throw, Shopper is installed, so launch it.
338 Intent intent = new Intent(Intent.ACTION_SEARCH);
339 intent.setClassName(GOOGLE_SHOPPER_PACKAGE, GOOGLE_SHOPPER_ACTIVITY);
340 intent.putExtra(SearchManager.QUERY, query);
341 activity.startActivity(intent);
342 } catch (PackageManager.NameNotFoundException e) {
343 // Otherwise offer to install it from Market.
344 AlertDialog.Builder builder = new AlertDialog.Builder(activity);
345 builder.setTitle(R.string.msg_google_shopper_missing);
346 builder.setMessage(R.string.msg_install_google_shopper);
347 builder.setIcon(R.drawable.shopper_icon);
348 builder.setPositiveButton(R.string.button_ok, shopperMarketListener);
349 builder.setNegativeButton(R.string.button_cancel, null);
354 void launchIntent(Intent intent) {
355 if (intent != null) {
356 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
358 activity.startActivity(intent);
359 } catch (ActivityNotFoundException e) {
360 AlertDialog.Builder builder = new AlertDialog.Builder(activity);
361 builder.setTitle(R.string.app_name);
362 builder.setMessage(R.string.msg_intent_failed);
363 builder.setPositiveButton(R.string.button_ok, null);
369 private static void putExtra(Intent intent, String key, String value) {
370 if (value != null && value.length() > 0) {
371 intent.putExtra(key, value);
375 protected void showNotOurResults(int index, AlertDialog.OnClickListener proceedListener) {
376 SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
377 if (prefs.getBoolean(PreferencesActivity.KEY_NOT_OUR_RESULTS_SHOWN, false)) {
378 // already seen it, just proceed
379 proceedListener.onClick(null, index);
381 // note the user has seen it
382 prefs.edit().putBoolean(PreferencesActivity.KEY_NOT_OUR_RESULTS_SHOWN, true).commit();
383 AlertDialog.Builder builder = new AlertDialog.Builder(activity);
384 builder.setMessage(R.string.msg_not_our_results);
385 builder.setPositiveButton(R.string.button_ok, proceedListener);
390 protected String parseCustomSearchURL() {
391 SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
392 String customProductSearch = prefs.getString(PreferencesActivity.KEY_CUSTOM_PRODUCT_SEARCH, null);
393 if (customProductSearch != null && customProductSearch.trim().length() == 0) {
396 return customProductSearch;