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      1 /*
      2  * Copyright (C) 2006 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 package com.android.contacts.activities;
     18 
     19 import android.app.Activity;
     20 import android.content.ActivityNotFoundException;
     21 import android.content.ContentResolver;
     22 import android.content.ContentValues;
     23 import android.content.Intent;
     24 import android.content.Loader;
     25 import android.content.Loader.OnLoadCompleteListener;
     26 import android.content.pm.PackageManager;
     27 import android.content.pm.ResolveInfo;
     28 import android.database.Cursor;
     29 import android.graphics.Bitmap;
     30 import android.net.Uri;
     31 import android.os.Bundle;
     32 import android.provider.ContactsContract.CommonDataKinds.Photo;
     33 import android.provider.ContactsContract.Contacts;
     34 import android.provider.ContactsContract.DisplayPhoto;
     35 import android.provider.ContactsContract.Intents;
     36 import android.provider.ContactsContract.RawContacts;
     37 import android.util.Log;
     38 import android.widget.Toast;
     39 
     40 import com.android.contacts.ContactSaveService;
     41 import com.android.contacts.ContactsActivity;
     42 import com.android.contacts.ContactsUtils;
     43 import com.android.contacts.R;
     44 import com.android.contacts.editor.ContactEditorUtils;
     45 import com.android.contacts.model.AccountTypeManager;
     46 import com.android.contacts.model.Contact;
     47 import com.android.contacts.model.ContactLoader;
     48 import com.android.contacts.model.RawContactDelta;
     49 import com.android.contacts.model.RawContactDeltaList;
     50 import com.android.contacts.model.RawContactModifier;
     51 import com.android.contacts.model.ValuesDelta;
     52 import com.android.contacts.model.account.AccountInfo;
     53 import com.android.contacts.model.account.AccountType;
     54 import com.android.contacts.model.account.AccountWithDataSet;
     55 import com.android.contacts.util.ContactPhotoUtils;
     56 import com.google.common.base.Preconditions;
     57 import com.google.common.util.concurrent.Futures;
     58 import com.google.common.util.concurrent.ListenableFuture;
     59 
     60 import java.io.FileNotFoundException;
     61 import java.util.List;
     62 
     63 /**
     64  * Provides an external interface for other applications to attach images
     65  * to contacts. It will first present a contact picker and then run the
     66  * image that is handed to it through the cropper to make the image the proper
     67  * size and give the user a chance to use the face detector.
     68  */
     69 public class AttachPhotoActivity extends ContactsActivity {
     70     private static final String TAG = AttachPhotoActivity.class.getSimpleName();
     71 
     72     private static final int REQUEST_PICK_CONTACT = 1;
     73     private static final int REQUEST_CROP_PHOTO = 2;
     74     private static final int REQUEST_PICK_DEFAULT_ACCOUNT_FOR_NEW_CONTACT = 3;
     75 
     76     private static final String KEY_CONTACT_URI = "contact_uri";
     77     private static final String KEY_TEMP_PHOTO_URI = "temp_photo_uri";
     78     private static final String KEY_CROPPED_PHOTO_URI = "cropped_photo_uri";
     79 
     80     private Uri mTempPhotoUri;
     81     private Uri mCroppedPhotoUri;
     82 
     83     private ContentResolver mContentResolver;
     84 
     85     private ListenableFuture<List<AccountInfo>> mAccountsFuture;
     86 
     87     // Height and width (in pixels) to request for the photo - queried from the provider.
     88     private static int mPhotoDim;
     89     // Default photo dimension to use if unable to query the provider.
     90     private static final int mDefaultPhotoDim = 720;
     91 
     92     private Uri mContactUri;
     93 
     94     @Override
     95     public void onCreate(Bundle icicle) {
     96         super.onCreate(icicle);
     97 
     98         if (RequestPermissionsActivity.startPermissionActivityIfNeeded(this)) {
     99             return;
    100         }
    101 
    102         if (icicle != null) {
    103             final String uri = icicle.getString(KEY_CONTACT_URI);
    104             mContactUri = (uri == null) ? null : Uri.parse(uri);
    105             mTempPhotoUri = Uri.parse(icicle.getString(KEY_TEMP_PHOTO_URI));
    106             mCroppedPhotoUri = Uri.parse(icicle.getString(KEY_CROPPED_PHOTO_URI));
    107         } else {
    108             mTempPhotoUri = ContactPhotoUtils.generateTempImageUri(this);
    109             mCroppedPhotoUri = ContactPhotoUtils.generateTempCroppedImageUri(this);
    110             Intent intent = new Intent(Intent.ACTION_PICK);
    111             intent.setType(Contacts.CONTENT_TYPE);
    112             intent.setPackage(getPackageName());
    113             startActivityForResult(intent, REQUEST_PICK_CONTACT);
    114         }
    115 
    116         mContentResolver = getContentResolver();
    117 
    118         // Load the photo dimension to request. mPhotoDim is a static class
    119         // member varible so only need to load this if this is the first time
    120         // through.
    121         if (mPhotoDim == 0) {
    122             Cursor c = mContentResolver.query(DisplayPhoto.CONTENT_MAX_DIMENSIONS_URI,
    123                     new String[]{DisplayPhoto.DISPLAY_MAX_DIM}, null, null, null);
    124             if (c != null) {
    125                 try {
    126                     if (c.moveToFirst()) {
    127                         mPhotoDim = c.getInt(0);
    128                     }
    129                 } finally {
    130                     c.close();
    131                 }
    132             }
    133         }
    134 
    135         // Start loading accounts in case they are needed.
    136         mAccountsFuture = AccountTypeManager.getInstance(this).filterAccountsAsync(
    137                 AccountTypeManager.writableFilter());
    138     }
    139 
    140     @Override
    141     protected void onSaveInstanceState(Bundle outState) {
    142         super.onSaveInstanceState(outState);
    143         if (mContactUri != null) {
    144             outState.putString(KEY_CONTACT_URI, mContactUri.toString());
    145         }
    146         if (mTempPhotoUri != null) {
    147             outState.putString(KEY_TEMP_PHOTO_URI, mTempPhotoUri.toString());
    148         }
    149         if (mCroppedPhotoUri != null) {
    150             outState.putString(KEY_CROPPED_PHOTO_URI, mCroppedPhotoUri.toString());
    151         }
    152     }
    153 
    154     @Override
    155     protected void onActivityResult(int requestCode, int resultCode, Intent result) {
    156         if (requestCode == REQUEST_PICK_DEFAULT_ACCOUNT_FOR_NEW_CONTACT) {
    157             // Bail if the account selector was not successful.
    158             if (resultCode != Activity.RESULT_OK) {
    159                 Log.w(TAG, "account selector was not successful");
    160                 finish();
    161                 return;
    162             }
    163             // If there's an account specified, use it.
    164             if (result != null) {
    165                 AccountWithDataSet account = result.getParcelableExtra(
    166                         Intents.Insert.EXTRA_ACCOUNT);
    167                 if (account != null) {
    168                     createNewRawContact(account);
    169                     return;
    170                 }
    171             }
    172             // If there isn't an account specified, then the user opted to keep the contact local.
    173             createNewRawContact(null);
    174         } else if (requestCode == REQUEST_PICK_CONTACT) {
    175             if (resultCode != RESULT_OK) {
    176                 finish();
    177                 return;
    178             }
    179             // A contact was picked. Launch the cropper to get face detection, the right size, etc.
    180             // TODO: get these values from constants somewhere
    181             final Intent myIntent = getIntent();
    182             final Uri inputUri = myIntent.getData();
    183 
    184 
    185             // Save the URI into a temporary file provider URI so that
    186             // we can add the FLAG_GRANT_WRITE_URI_PERMISSION flag to the eventual
    187             // crop intent for read-only URI's.
    188             // TODO: With b/10837468 fixed should be able to avoid this copy.
    189             if (!ContactPhotoUtils.savePhotoFromUriToUri(this, inputUri, mTempPhotoUri, false)) {
    190                 finish();
    191                 return;
    192             }
    193 
    194             final Intent intent = new Intent("com.android.camera.action.CROP", mTempPhotoUri);
    195             if (myIntent.getStringExtra("mimeType") != null) {
    196                 intent.setDataAndType(mTempPhotoUri, myIntent.getStringExtra("mimeType"));
    197             }
    198             ContactPhotoUtils.addPhotoPickerExtras(intent, mCroppedPhotoUri);
    199             ContactPhotoUtils.addCropExtras(intent, mPhotoDim != 0 ? mPhotoDim : mDefaultPhotoDim);
    200             if (!hasIntentHandler(intent)) {
    201                 // No activity supports the crop action. So skip cropping and set the photo
    202                 // without performing any cropping.
    203                 mCroppedPhotoUri = mTempPhotoUri;
    204                 mContactUri = result.getData();
    205                 loadContact(mContactUri, new Listener() {
    206                     @Override
    207                     public void onContactLoaded(Contact contact) {
    208                         saveContact(contact);
    209                     }
    210                 });
    211                 return;
    212             }
    213 
    214             try {
    215                 startActivityForResult(intent, REQUEST_CROP_PHOTO);
    216             } catch (ActivityNotFoundException ex) {
    217                 Toast.makeText(this, R.string.missing_app, Toast.LENGTH_SHORT).show();
    218                 return;
    219             }
    220 
    221             mContactUri = result.getData();
    222 
    223         } else if (requestCode == REQUEST_CROP_PHOTO) {
    224             // Delete the temporary photo from cache now that we have a cropped version.
    225             // We should do this even if the crop failed and we eventually bail
    226             getContentResolver().delete(mTempPhotoUri, null, null);
    227             if (resultCode != RESULT_OK) {
    228                 finish();
    229                 return;
    230             }
    231             loadContact(mContactUri, new Listener() {
    232                 @Override
    233                 public void onContactLoaded(Contact contact) {
    234                     saveContact(contact);
    235                 }
    236             });
    237         }
    238     }
    239 
    240     private boolean hasIntentHandler(Intent intent) {
    241         final List<ResolveInfo> resolveInfo = getPackageManager()
    242                 .queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
    243         return resolveInfo != null && resolveInfo.size() > 0;
    244     }
    245 
    246     // TODO: consider moving this to ContactLoader, especially if we keep adding similar
    247     // code elsewhere (ViewNotificationService is another case).  The only concern is that,
    248     // although this is convenient, it isn't quite as robust as using LoaderManager... for
    249     // instance, the loader doesn't persist across Activity restarts.
    250     private void loadContact(Uri contactUri, final Listener listener) {
    251         final ContactLoader loader = new ContactLoader(this, contactUri, true);
    252         loader.registerListener(0, new OnLoadCompleteListener<Contact>() {
    253             @Override
    254             public void onLoadComplete(
    255                     Loader<Contact> loader, Contact contact) {
    256                 try {
    257                     loader.reset();
    258                 }
    259                 catch (RuntimeException e) {
    260                     Log.e(TAG, "Error resetting loader", e);
    261                 }
    262                 listener.onContactLoaded(contact);
    263             }
    264         });
    265         loader.startLoading();
    266     }
    267 
    268     private interface Listener {
    269         public void onContactLoaded(Contact contact);
    270     }
    271 
    272     /**
    273      * If prerequisites have been met, attach the photo to a raw-contact and save.
    274      * The prerequisites are:
    275      * - photo has been cropped
    276      * - contact has been loaded
    277      */
    278     private void saveContact(Contact contact) {
    279 
    280         if (contact.getRawContacts() == null) {
    281             Log.w(TAG, "No raw contacts found for contact");
    282             finish();
    283             return;
    284         }
    285 
    286         // Obtain the raw-contact that we will save to.
    287         RawContactDeltaList deltaList = contact.createRawContactDeltaList();
    288         RawContactDelta raw = deltaList.getFirstWritableRawContact(this);
    289         if (raw == null) {
    290             // We can't directly insert this photo since no raw contacts exist in the contact.
    291             selectAccountAndCreateContact();
    292             return;
    293         }
    294 
    295         saveToContact(contact, deltaList, raw);
    296     }
    297 
    298     private void saveToContact(Contact contact, RawContactDeltaList deltaList,
    299             RawContactDelta raw) {
    300 
    301         // Create a scaled, compressed bitmap to add to the entity-delta list.
    302         final int size = ContactsUtils.getThumbnailSize(this);
    303         Bitmap bitmap;
    304         try {
    305             bitmap = ContactPhotoUtils.getBitmapFromUri(this, mCroppedPhotoUri);
    306         } catch (FileNotFoundException e) {
    307             Log.w(TAG, "Could not find bitmap");
    308             finish();
    309             return;
    310         }
    311         if (bitmap == null) {
    312             Log.w(TAG, "Could not decode bitmap");
    313             finish();
    314             return;
    315         }
    316 
    317         final Bitmap scaled = Bitmap.createScaledBitmap(bitmap, size, size, false);
    318         final byte[] compressed = ContactPhotoUtils.compressBitmap(scaled);
    319         if (compressed == null) {
    320             Log.w(TAG, "could not create scaled and compressed Bitmap");
    321             finish();
    322             return;
    323         }
    324 
    325         // Add compressed bitmap to entity-delta... this allows us to save to
    326         // a new contact; otherwise the entity-delta-list would be empty, and
    327         // the ContactSaveService would not create the new contact, and the
    328         // full-res photo would fail to be saved to the non-existent contact.
    329         AccountType account = raw.getRawContactAccountType(this);
    330         ValuesDelta values =
    331                 RawContactModifier.ensureKindExists(raw, account, Photo.CONTENT_ITEM_TYPE);
    332         if (values == null) {
    333             Log.w(TAG, "cannot attach photo to this account type");
    334             finish();
    335             return;
    336         }
    337         values.setPhoto(compressed);
    338 
    339         // Finally, invoke the ContactSaveService.
    340         if (Log.isLoggable(TAG, Log.VERBOSE)) {
    341             Log.v(TAG, "all prerequisites met, about to save photo to contact");
    342         }
    343         Intent intent = ContactSaveService.createSaveContactIntent(
    344                 this,
    345                 deltaList,
    346                 "", 0,
    347                 contact.isUserProfile(),
    348                 null, null,
    349                 raw.getRawContactId() != null ? raw.getRawContactId() : -1,
    350                 mCroppedPhotoUri
    351         );
    352         ContactSaveService.startService(this, intent);
    353         finish();
    354     }
    355 
    356     private void selectAccountAndCreateContact() {
    357         Preconditions.checkNotNull(mAccountsFuture, "Accounts future must be initialized first");
    358         // If there is no default account or the accounts have changed such that we need to
    359         // prompt the user again, then launch the account prompt.
    360         final ContactEditorUtils editorUtils = ContactEditorUtils.create(this);
    361 
    362         // Technically this could block but in reality this method won't be called until the user
    363         // presses the save button which should allow plenty of time for the accounts to
    364         // finish loading. Note also that this could be stale if the accounts have changed since
    365         // we requested them but that's OK since ContactEditorAccountsChangedActivity will reload
    366         // the accounts
    367         final List<AccountInfo> accountInfos = Futures.getUnchecked(mAccountsFuture);
    368 
    369         final List<AccountWithDataSet> accounts = AccountInfo.extractAccounts(accountInfos);
    370         if (editorUtils.shouldShowAccountChangedNotification(accounts)) {
    371             Intent intent = new Intent(this, ContactEditorAccountsChangedActivity.class)
    372                     .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
    373             startActivityForResult(intent, REQUEST_PICK_DEFAULT_ACCOUNT_FOR_NEW_CONTACT);
    374         } else {
    375             // Otherwise, there should be a default account. Then either create a null contact
    376             // (if default account is null) or create a contact with the specified account.
    377             final AccountWithDataSet targetAccount = editorUtils.getOnlyOrDefaultAccount(accounts);
    378             createNewRawContact(targetAccount);
    379         }
    380     }
    381 
    382     /**
    383      * Create a new writeable raw contact to store mCroppedPhotoUri.
    384      */
    385     private void createNewRawContact(final AccountWithDataSet account) {
    386         // Reload the contact from URI instead of trying to pull the contact from a member variable,
    387         // since this function can be called after the activity stops and resumes.
    388         loadContact(mContactUri, new Listener() {
    389             @Override
    390             public void onContactLoaded(Contact contactToSave) {
    391                 final RawContactDeltaList deltaList = contactToSave.createRawContactDeltaList();
    392                 final ContentValues after = new ContentValues();
    393                 after.put(RawContacts.ACCOUNT_TYPE, account != null ? account.type : null);
    394                 after.put(RawContacts.ACCOUNT_NAME, account != null ? account.name : null);
    395                 after.put(RawContacts.DATA_SET, account != null ? account.dataSet : null);
    396 
    397                 final RawContactDelta newRawContactDelta
    398                         = new RawContactDelta(ValuesDelta.fromAfter(after));
    399                 deltaList.add(newRawContactDelta);
    400                 saveToContact(contactToSave, deltaList, newRawContactDelta);
    401             }
    402         });
    403     }
    404 }
    405