| /* |
| * Copyright (C) 2009 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.contacts.vcard; |
| |
| import android.app.Activity; |
| import android.app.AlertDialog; |
| import android.app.Dialog; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.Intent; |
| import android.content.ServiceConnection; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.database.Cursor; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.os.IBinder; |
| import android.provider.OpenableColumns; |
| import android.text.BidiFormatter; |
| import android.text.TextDirectionHeuristics; |
| import android.util.Log; |
| |
| import com.android.contacts.R; |
| import com.android.contacts.activities.RequestImportVCardPermissionsActivity; |
| |
| import java.util.List; |
| |
| /** |
| * Shows a dialog confirming the export and asks actual vCard export to {@link VCardService} |
| * |
| * This Activity first connects to VCardService and ask an available file name and shows it to |
| * a user. After the user's confirmation, it send export request with the file name, assuming the |
| * file name is not reserved yet. |
| */ |
| public class ExportVCardActivity extends Activity implements ServiceConnection, |
| DialogInterface.OnClickListener, DialogInterface.OnCancelListener { |
| private static final String LOG_TAG = "VCardExport"; |
| protected static final boolean DEBUG = VCardService.DEBUG; |
| private static final int REQUEST_CREATE_DOCUMENT = 100; |
| |
| /** |
| * True when this Activity is connected to {@link VCardService}. |
| * |
| * Should be touched inside synchronized block. |
| */ |
| protected boolean mConnected; |
| |
| /** |
| * True when users need to do something and this Activity should not disconnect from |
| * VCardService. False when all necessary procedures are done (including sending export request) |
| * or there's some error occured. |
| */ |
| private volatile boolean mProcessOngoing = true; |
| |
| protected VCardService mService; |
| private static final BidiFormatter mBidiFormatter = BidiFormatter.getInstance(); |
| |
| // String for storing error reason temporarily. |
| private String mErrorReason; |
| |
| @Override |
| protected void onCreate(Bundle bundle) { |
| super.onCreate(bundle); |
| |
| if (RequestImportVCardPermissionsActivity.startPermissionActivityIfNeeded(this)) { |
| return; |
| } |
| |
| if (!hasExportIntentHandler()) { |
| Log.e(LOG_TAG, "Couldn't find export intent handler"); |
| showErrorDialog(); |
| return; |
| } |
| |
| connectVCardService(); |
| } |
| |
| private void connectVCardService() { |
| final String callingActivity = getIntent().getExtras() |
| .getString(VCardCommonArguments.ARG_CALLING_ACTIVITY); |
| Intent intent = new Intent(this, VCardService.class); |
| intent.putExtra(VCardCommonArguments.ARG_CALLING_ACTIVITY, callingActivity); |
| |
| if (startService(intent) == null) { |
| Log.e(LOG_TAG, "Failed to start vCard service"); |
| showErrorDialog(); |
| return; |
| } |
| |
| if (!bindService(intent, this, Context.BIND_AUTO_CREATE)) { |
| Log.e(LOG_TAG, "Failed to connect to vCard service."); |
| showErrorDialog(); |
| } |
| // Continued to onServiceConnected() |
| } |
| |
| private boolean hasExportIntentHandler() { |
| final Intent intent = getCreateDocIntent(); |
| final List<ResolveInfo> receivers = getPackageManager().queryIntentActivities(intent, |
| PackageManager.MATCH_DEFAULT_ONLY); |
| return receivers != null && receivers.size() > 0; |
| } |
| |
| private Intent getCreateDocIntent() { |
| final Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT); |
| intent.addCategory(Intent.CATEGORY_OPENABLE); |
| intent.setType(VCardService.X_VCARD_MIME_TYPE); |
| intent.putExtra(Intent.EXTRA_TITLE, mBidiFormatter.unicodeWrap( |
| getString(R.string.exporting_vcard_filename), TextDirectionHeuristics.LTR)); |
| return intent; |
| } |
| |
| private void showErrorDialog() { |
| mErrorReason = getString(R.string.fail_reason_unknown); |
| showDialog(R.id.dialog_fail_to_export_with_reason); |
| } |
| |
| @Override |
| public void onActivityResult(int requestCode, int resultCode, Intent data) { |
| if (requestCode == REQUEST_CREATE_DOCUMENT) { |
| if (resultCode == Activity.RESULT_OK && mService != null && |
| data != null && data.getData() != null) { |
| final Uri targetFileName = data.getData(); |
| if (DEBUG) Log.d(LOG_TAG, "exporting to " + targetFileName); |
| final ExportRequest request = new ExportRequest(targetFileName); |
| // The connection object will call finish(). |
| mService.handleExportRequest(request, new NotificationImportExportListener( |
| ExportVCardActivity.this)); |
| } else if (DEBUG) { |
| if (mService == null) { |
| Log.d(LOG_TAG, "No vCard service."); |
| } else { |
| Log.d(LOG_TAG, "create document cancelled or no data returned"); |
| } |
| } |
| finish(); |
| } |
| } |
| |
| @Override |
| public synchronized void onServiceConnected(ComponentName name, IBinder binder) { |
| if (DEBUG) Log.d(LOG_TAG, "connected to service, requesting a destination file name"); |
| mConnected = true; |
| mService = ((VCardService.MyBinder) binder).getService(); |
| |
| // Have the user choose where vcards will be exported to |
| startActivityForResult(getCreateDocIntent(), REQUEST_CREATE_DOCUMENT); |
| } |
| |
| // Use synchronized since we don't want to call finish() just after this call. |
| @Override |
| public synchronized void onServiceDisconnected(ComponentName name) { |
| if (DEBUG) Log.d(LOG_TAG, "onServiceDisconnected()"); |
| mService = null; |
| mConnected = false; |
| if (mProcessOngoing) { |
| // Unexpected disconnect event. |
| Log.w(LOG_TAG, "Disconnected from service during the process ongoing."); |
| showErrorDialog(); |
| } |
| } |
| |
| @Override |
| protected Dialog onCreateDialog(int id, Bundle bundle) { |
| if (id == R.id.dialog_fail_to_export_with_reason) { |
| mProcessOngoing = false; |
| return new AlertDialog.Builder(this) |
| .setTitle(R.string.exporting_contact_failed_title) |
| .setMessage(getString(R.string.exporting_contact_failed_message, |
| mErrorReason != null ? mErrorReason : |
| getString(R.string.fail_reason_unknown))) |
| .setPositiveButton(android.R.string.ok, this) |
| .setOnCancelListener(this) |
| .create(); |
| } |
| return super.onCreateDialog(id, bundle); |
| } |
| |
| @Override |
| protected void onPrepareDialog(int id, Dialog dialog, Bundle args) { |
| if (id == R.id.dialog_fail_to_export_with_reason) { |
| ((AlertDialog)dialog).setMessage(mErrorReason); |
| } else { |
| super.onPrepareDialog(id, dialog, args); |
| } |
| } |
| |
| @Override |
| public void onClick(DialogInterface dialog, int which) { |
| if (DEBUG) Log.d(LOG_TAG, "ExportVCardActivity#onClick() is called"); |
| finish(); |
| } |
| |
| @Override |
| public void onCancel(DialogInterface dialog) { |
| if (DEBUG) Log.d(LOG_TAG, "ExportVCardActivity#onCancel() is called"); |
| mProcessOngoing = false; |
| finish(); |
| } |
| |
| @Override |
| public void unbindService(ServiceConnection conn) { |
| mProcessOngoing = false; |
| super.unbindService(conn); |
| } |
| |
| @Override |
| protected void onDestroy() { |
| if (mConnected) { |
| unbindService(this); |
| mConnected = false; |
| } |
| super.onDestroy(); |
| } |
| |
| /** |
| * Returns the display name for the given openable Uri or null if it could not be resolved. */ |
| static String getOpenableUriDisplayName(Context context, Uri uri) { |
| if (uri == null) return null; |
| final Cursor cursor = context.getContentResolver().query(uri, null, null, null, null); |
| try { |
| if (cursor != null && cursor.moveToFirst()) { |
| return cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)); |
| } |
| } finally { |
| if (cursor != null) { |
| cursor.close(); |
| } |
| } |
| return null; |
| } |
| } |