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.Result;
20 import com.google.zxing.client.android.Contents;
21 import com.google.zxing.client.android.Intents;
22 import com.google.zxing.client.android.LocaleManager;
23 import com.google.zxing.client.android.PreferencesActivity;
24 import com.google.zxing.client.android.R;
25 import com.google.zxing.client.android.book.SearchBookContentsActivity;
26 import com.google.zxing.client.android.wifi.WifiActivity;
27 import com.google.zxing.client.result.ParsedResult;
28 import com.google.zxing.client.result.ParsedResultType;
29 import com.google.zxing.client.result.WifiParsedResult;
31 import android.app.Activity;
32 import android.app.AlertDialog;
33 import android.app.SearchManager;
34 import android.content.ActivityNotFoundException;
35 import android.content.DialogInterface;
36 import android.content.Intent;
37 import android.content.SharedPreferences;
38 import android.content.pm.PackageManager;
39 import android.net.Uri;
40 import android.preference.PreferenceManager;
41 import android.provider.Contacts;
43 import java.text.DateFormat;
44 import java.text.ParsePosition;
45 import java.text.SimpleDateFormat;
46 import java.util.Calendar;
47 import java.util.Date;
48 import java.util.GregorianCalendar;
51 * A base class for the Android-specific barcode handlers. These allow the app to polymorphically
52 * suggest the appropriate actions for each data type.
54 * This class also contains a bunch of utility methods to take common actions like opening a URL.
55 * They could easily be moved into a helper object, but it can't be static because the Activity
56 * instance is needed to launch an intent.
58 * @author dswitkin@google.com (Daniel Switkin)
60 public abstract class ResultHandler {
61 private static final DateFormat DATE_FORMAT = new SimpleDateFormat("yyyyMMdd");
62 private static final DateFormat DATE_TIME_FORMAT = new SimpleDateFormat("yyyyMMdd'T'HHmmss");
64 private static final String GOOGLE_SHOPPER_PACKAGE = "com.google.android.apps.shopper";
65 private static final String GOOGLE_SHOPPER_ACTIVITY = GOOGLE_SHOPPER_PACKAGE +
66 ".results.SearchResultsActivity";
67 private static final String MARKET_URI_PREFIX = "market://search?q=pname:";
68 private static final String MARKET_REFERRER_SUFFIX =
69 "&referrer=utm_source%3Dbarcodescanner%26utm_medium%3Dapps%26utm_campaign%3Dscan";
71 public static final int MAX_BUTTON_COUNT = 4;
73 private final ParsedResult result;
74 private final Activity activity;
75 private final Result rawResult;
76 private final String customProductSearch;
78 private final DialogInterface.OnClickListener shopperMarketListener =
79 new DialogInterface.OnClickListener() {
80 public void onClick(DialogInterface dialogInterface, int which) {
81 launchIntent(new Intent(Intent.ACTION_VIEW, Uri.parse(MARKET_URI_PREFIX +
82 GOOGLE_SHOPPER_PACKAGE + MARKET_REFERRER_SUFFIX)));
86 ResultHandler(Activity activity, ParsedResult result) {
87 this(activity, result, null);
90 ResultHandler(Activity activity, ParsedResult result, Result rawResult) {
92 this.activity = activity;
93 this.rawResult = rawResult;
94 this.customProductSearch = parseCustomSearchURL();
97 ParsedResult getResult() {
101 boolean hasCustomProductSearch() {
102 return customProductSearch != null;
106 * Indicates how many buttons the derived class wants shown.
108 * @return The integer button count.
110 public abstract int getButtonCount();
113 * The text of the nth action button.
115 * @param index From 0 to getButtonCount() - 1
116 * @return The button text as a resource ID
118 public abstract int getButtonText(int index);
122 * Execute the action which corresponds to the nth button.
124 * @param index The button that was clicked.
126 public abstract void handleButtonPress(int index);
129 * Create a possibly styled string for the contents of the current barcode.
131 * @return The text to be displayed.
133 public CharSequence getDisplayContents() {
134 String contents = result.getDisplayResult();
135 return contents.replace("\r", "");
139 * A string describing the kind of barcode that was found, e.g. "Found contact info".
141 * @return The resource ID of the string.
143 public abstract int getDisplayTitle();
146 * A convenience method to get the parsed type. Should not be overridden.
148 * @return The parsed type, e.g. URI or ISBN
150 public final ParsedResultType getType() {
151 return result.getType();
155 * Sends an intent to create a new calendar event by prepopulating the Add Event UI. Older
156 * versions of the system have a bug where the event title will not be filled out.
158 * @param summary A description of the event
159 * @param start The start time as yyyyMMdd or yyyyMMdd'T'HHmmss or yyyyMMdd'T'HHmmss'Z'
160 * @param end The end time as yyyyMMdd or yyyyMMdd'T'HHmmss or yyyyMMdd'T'HHmmss'Z'
161 * @param location a text description of the event location
162 * @param description a text description of the event itself
164 final void addCalendarEvent(String summary,
168 String description) {
169 Intent intent = new Intent(Intent.ACTION_EDIT);
170 intent.setType("vnd.android.cursor.item/event");
171 intent.putExtra("beginTime", calculateMilliseconds(start));
172 if (start.length() == 8) {
173 intent.putExtra("allDay", true);
178 intent.putExtra("endTime", calculateMilliseconds(end));
179 intent.putExtra("title", summary);
180 intent.putExtra("eventLocation", location);
181 intent.putExtra("description", description);
182 launchIntent(intent);
185 private static long calculateMilliseconds(String when) {
186 if (when.length() == 8) {
187 // Only contains year/month/day
189 synchronized (DATE_FORMAT) {
190 date = DATE_FORMAT.parse(when, new ParsePosition(0));
192 return date.getTime();
194 // The when string can be local time, or UTC if it ends with a Z
196 synchronized (DATE_TIME_FORMAT) {
197 date = DATE_TIME_FORMAT.parse(when.substring(0, 15), new ParsePosition(0));
199 long milliseconds = date.getTime();
200 if (when.length() == 16 && when.charAt(15) == 'Z') {
201 Calendar calendar = new GregorianCalendar();
202 int offset = calendar.get(Calendar.ZONE_OFFSET) + calendar.get(Calendar.DST_OFFSET);
203 milliseconds += offset;
209 final void addContact(String[] names, String[] phoneNumbers, String[] emails, String note,
210 String address, String org, String title) {
212 // Only use the first name in the array, if present.
213 Intent intent = new Intent(Contacts.Intents.Insert.ACTION, Contacts.People.CONTENT_URI);
214 putExtra(intent, Contacts.Intents.Insert.NAME, names != null ? names[0] : null);
216 int phoneCount = Math.min((phoneNumbers != null) ? phoneNumbers.length : 0,
217 Contents.PHONE_KEYS.length);
218 for (int x = 0; x < phoneCount; x++) {
219 putExtra(intent, Contents.PHONE_KEYS[x], phoneNumbers[x]);
222 int emailCount = Math.min((emails != null) ? emails.length : 0, Contents.EMAIL_KEYS.length);
223 for (int x = 0; x < emailCount; x++) {
224 putExtra(intent, Contents.EMAIL_KEYS[x], emails[x]);
227 putExtra(intent, Contacts.Intents.Insert.NOTES, note);
228 putExtra(intent, Contacts.Intents.Insert.POSTAL, address);
229 putExtra(intent, Contacts.Intents.Insert.COMPANY, org);
230 putExtra(intent, Contacts.Intents.Insert.JOB_TITLE, title);
231 launchIntent(intent);
234 final void shareByEmail(String contents) {
235 sendEmailFromUri("mailto:", null, activity.getString(R.string.msg_share_subject_line), contents);
238 final void sendEmail(String address, String subject, String body) {
239 sendEmailFromUri("mailto:" + address, address, subject, body);
242 // Use public Intent fields rather than private GMail app fields to specify subject and body.
243 final void sendEmailFromUri(String uri, String email, String subject, String body) {
244 Intent intent = new Intent(Intent.ACTION_SEND, Uri.parse(uri));
246 intent.putExtra(Intent.EXTRA_EMAIL, new String[] {email});
248 putExtra(intent, Intent.EXTRA_SUBJECT, subject);
249 putExtra(intent, Intent.EXTRA_TEXT, body);
250 intent.setType("text/plain");
251 launchIntent(intent);
254 final void shareBySMS(String contents) {
255 sendSMSFromUri("smsto:", activity.getString(R.string.msg_share_subject_line) + ":\n" +
259 final void sendSMS(String phoneNumber, String body) {
260 sendSMSFromUri("smsto:" + phoneNumber, body);
263 final void sendSMSFromUri(String uri, String body) {
264 Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.parse(uri));
265 putExtra(intent, "sms_body", body);
266 // Exit the app once the SMS is sent
267 intent.putExtra("compose_mode", true);
268 launchIntent(intent);
271 final void sendMMS(String phoneNumber, String subject, String body) {
272 sendMMSFromUri("mmsto:" + phoneNumber, subject, body);
275 final void sendMMSFromUri(String uri, String subject, String body) {
276 Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.parse(uri));
277 // The Messaging app needs to see a valid subject or else it will treat this an an SMS.
278 if (subject == null || subject.length() == 0) {
279 putExtra(intent, "subject", activity.getString(R.string.msg_default_mms_subject));
281 putExtra(intent, "subject", subject);
283 putExtra(intent, "sms_body", body);
284 intent.putExtra("compose_mode", true);
285 launchIntent(intent);
288 final void dialPhone(String phoneNumber) {
289 launchIntent(new Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + phoneNumber)));
292 final void dialPhoneFromUri(String uri) {
293 launchIntent(new Intent(Intent.ACTION_DIAL, Uri.parse(uri)));
296 final void openMap(String geoURI) {
297 launchIntent(new Intent(Intent.ACTION_VIEW, Uri.parse(geoURI)));
301 * Do a geo search using the address as the query.
303 * @param address The address to find
304 * @param title An optional title, e.g. the name of the business at this address
306 final void searchMap(String address, String title) {
307 String query = address;
308 if (title != null && title.length() > 0) {
309 query = query + " (" + title + ')';
311 launchIntent(new Intent(Intent.ACTION_VIEW, Uri.parse("geo:0,0?q=" + Uri.encode(query))));
314 final void getDirections(double latitude, double longitude) {
315 launchIntent(new Intent(Intent.ACTION_VIEW, Uri.parse("http://maps.google." +
316 LocaleManager.getCountryTLD() + "/maps?f=d&daddr=" + latitude + ',' + longitude)));
319 // Uses the mobile-specific version of Product Search, which is formatted for small screens.
320 final void openProductSearch(String upc) {
321 Uri uri = Uri.parse("http://www.google." + LocaleManager.getProductSearchCountryTLD() +
322 "/m/products?q=" + upc + "&source=zxing");
323 launchIntent(new Intent(Intent.ACTION_VIEW, uri));
326 final void openBookSearch(String isbn) {
327 Uri uri = Uri.parse("http://books.google." + LocaleManager.getBookSearchCountryTLD() +
328 "/books?vid=isbn" + isbn);
329 launchIntent(new Intent(Intent.ACTION_VIEW, uri));
332 final void searchBookContents(String isbn) {
333 Intent intent = new Intent(Intents.SearchBookContents.ACTION);
334 intent.setClassName(activity, SearchBookContentsActivity.class.getName());
335 putExtra(intent, Intents.SearchBookContents.ISBN, isbn);
336 launchIntent(intent);
339 final void wifiConnect(WifiParsedResult wifiResult) {
340 Intent intent = new Intent(Intents.WifiConnect.ACTION);
341 intent.setClassName(activity, WifiActivity.class.getName());
342 putExtra(intent, Intents.WifiConnect.SSID, wifiResult.getSsid());
343 putExtra(intent, Intents.WifiConnect.TYPE, wifiResult.getNetworkEncryption());
344 putExtra(intent, Intents.WifiConnect.PASSWORD, wifiResult.getPassword());
345 launchIntent(intent);
348 final void openURL(String url) {
349 launchIntent(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
352 final void webSearch(String query) {
353 Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);
354 intent.putExtra("query", query);
355 launchIntent(intent);
358 final void openGoogleShopper(String query) {
360 activity.getPackageManager().getPackageInfo(GOOGLE_SHOPPER_PACKAGE, 0);
361 // If we didn't throw, Shopper is installed, so launch it.
362 Intent intent = new Intent(Intent.ACTION_SEARCH);
363 intent.setClassName(GOOGLE_SHOPPER_PACKAGE, GOOGLE_SHOPPER_ACTIVITY);
364 intent.putExtra(SearchManager.QUERY, query);
365 activity.startActivity(intent);
366 } catch (PackageManager.NameNotFoundException e) {
367 // Otherwise offer to install it from Market.
368 AlertDialog.Builder builder = new AlertDialog.Builder(activity);
369 builder.setTitle(R.string.msg_google_shopper_missing);
370 builder.setMessage(R.string.msg_install_google_shopper);
371 builder.setIcon(R.drawable.shopper_icon);
372 builder.setPositiveButton(R.string.button_ok, shopperMarketListener);
373 builder.setNegativeButton(R.string.button_cancel, null);
378 void launchIntent(Intent intent) {
379 if (intent != null) {
380 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
382 activity.startActivity(intent);
383 } catch (ActivityNotFoundException e) {
384 AlertDialog.Builder builder = new AlertDialog.Builder(activity);
385 builder.setTitle(R.string.app_name);
386 builder.setMessage(R.string.msg_intent_failed);
387 builder.setPositiveButton(R.string.button_ok, null);
393 private static void putExtra(Intent intent, String key, String value) {
394 if (value != null && value.length() > 0) {
395 intent.putExtra(key, value);
399 protected void showNotOurResults(int index, AlertDialog.OnClickListener proceedListener) {
400 SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
401 if (prefs.getBoolean(PreferencesActivity.KEY_NOT_OUR_RESULTS_SHOWN, false)) {
402 // already seen it, just proceed
403 proceedListener.onClick(null, index);
405 // note the user has seen it
406 prefs.edit().putBoolean(PreferencesActivity.KEY_NOT_OUR_RESULTS_SHOWN, true).commit();
407 AlertDialog.Builder builder = new AlertDialog.Builder(activity);
408 builder.setMessage(R.string.msg_not_our_results);
409 builder.setPositiveButton(R.string.button_ok, proceedListener);
414 private String parseCustomSearchURL() {
415 SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
416 String customProductSearch = prefs.getString(PreferencesActivity.KEY_CUSTOM_PRODUCT_SEARCH, null);
417 if (customProductSearch != null && customProductSearch.trim().length() == 0) {
420 return customProductSearch;
423 String fillInCustomSearchURL(String text) {
424 String url = customProductSearch.replace("%s", text);
425 if (rawResult != null) {
426 url = url.replace("%f", rawResult.getBarcodeFormat().toString());