| /* |
| * 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.net.Uri; |
| import android.os.Bundle; |
| import android.os.Environment; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Message; |
| import android.os.Messenger; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| import com.android.contacts.R; |
| |
| import java.io.File; |
| |
| /** |
| * 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"; |
| private static final boolean DEBUG = VCardService.DEBUG; |
| |
| /** |
| * Handler used when some Message has come from {@link VCardService}. |
| */ |
| private class IncomingHandler extends Handler { |
| @Override |
| public void handleMessage(Message msg) { |
| if (DEBUG) Log.d(LOG_TAG, "IncomingHandler received message."); |
| |
| if (msg.arg1 != 0) { |
| Log.i(LOG_TAG, "Message returned from vCard server contains error code."); |
| if (msg.obj != null) { |
| mErrorReason = (String)msg.obj; |
| } |
| showDialog(msg.arg1); |
| return; |
| } |
| |
| switch (msg.what) { |
| case VCardService.MSG_SET_AVAILABLE_EXPORT_DESTINATION: |
| if (msg.obj == null) { |
| Log.w(LOG_TAG, "Message returned from vCard server doesn't contain valid path"); |
| mErrorReason = getString(R.string.fail_reason_unknown); |
| showDialog(R.id.dialog_fail_to_export_with_reason); |
| } else { |
| mTargetFileName = (String)msg.obj; |
| if (TextUtils.isEmpty(mTargetFileName)) { |
| Log.w(LOG_TAG, "Destination file name coming from vCard service is empty."); |
| mErrorReason = getString(R.string.fail_reason_unknown); |
| showDialog(R.id.dialog_fail_to_export_with_reason); |
| } else { |
| if (DEBUG) { |
| Log.d(LOG_TAG, |
| String.format("Target file name is set (%s). " + |
| "Show confirmation dialog", mTargetFileName)); |
| } |
| showDialog(R.id.dialog_export_confirmation); |
| } |
| } |
| break; |
| default: |
| Log.w(LOG_TAG, "Unknown message type: " + msg.what); |
| super.handleMessage(msg); |
| } |
| } |
| } |
| |
| /** |
| * True when this Activity is connected to {@link VCardService}. |
| * |
| * Should be touched inside synchronized block. |
| */ |
| private 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; |
| |
| private VCardService mService; |
| private final Messenger mIncomingMessenger = new Messenger(new IncomingHandler()); |
| |
| // Used temporarily when asking users to confirm the file name |
| private String mTargetFileName; |
| |
| // String for storing error reason temporarily. |
| private String mErrorReason; |
| |
| private class ExportConfirmationListener implements DialogInterface.OnClickListener { |
| private final Uri mDestinationUri; |
| |
| public ExportConfirmationListener(String path) { |
| this(Uri.parse("file://" + path)); |
| } |
| |
| public ExportConfirmationListener(Uri uri) { |
| mDestinationUri = uri; |
| } |
| |
| public void onClick(DialogInterface dialog, int which) { |
| if (which == DialogInterface.BUTTON_POSITIVE) { |
| if (DEBUG) { |
| Log.d(LOG_TAG, |
| String.format("Try sending export request (uri: %s)", mDestinationUri)); |
| } |
| final ExportRequest request = new ExportRequest(mDestinationUri); |
| // The connection object will call finish(). |
| mService.handleExportRequest(request, new NotificationImportExportListener( |
| ExportVCardActivity.this)); |
| } |
| unbindAndFinish(); |
| } |
| } |
| |
| @Override |
| protected void onCreate(Bundle bundle) { |
| super.onCreate(bundle); |
| |
| // Check directory is available. |
| if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) { |
| Log.w(LOG_TAG, "External storage is in state " + Environment.getExternalStorageState() + |
| ". Cancelling export"); |
| showDialog(R.id.dialog_sdcard_not_found); |
| return; |
| } |
| |
| final File targetDirectory = Environment.getExternalStorageDirectory(); |
| if (!(targetDirectory.exists() && |
| targetDirectory.isDirectory() && |
| targetDirectory.canRead()) && |
| !targetDirectory.mkdirs()) { |
| showDialog(R.id.dialog_sdcard_not_found); |
| return; |
| } |
| |
| Intent intent = new Intent(this, VCardService.class); |
| |
| if (startService(intent) == null) { |
| Log.e(LOG_TAG, "Failed to start vCard service"); |
| mErrorReason = getString(R.string.fail_reason_unknown); |
| showDialog(R.id.dialog_fail_to_export_with_reason); |
| return; |
| } |
| |
| if (!bindService(intent, this, Context.BIND_AUTO_CREATE)) { |
| Log.e(LOG_TAG, "Failed to connect to vCard service."); |
| mErrorReason = getString(R.string.fail_reason_unknown); |
| showDialog(R.id.dialog_fail_to_export_with_reason); |
| } |
| // Continued to onServiceConnected() |
| } |
| |
| @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(); |
| mService.handleRequestAvailableExportDestination(mIncomingMessenger); |
| // Wait until MSG_SET_AVAILABLE_EXPORT_DESTINATION message is available. |
| } |
| |
| // Use synchronized since we don't want to call unbindAndFinish() 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."); |
| mErrorReason = getString(R.string.fail_reason_unknown); |
| showDialog(R.id.dialog_fail_to_export_with_reason); |
| } |
| } |
| |
| @Override |
| protected Dialog onCreateDialog(int id, Bundle bundle) { |
| switch (id) { |
| case R.id.dialog_export_confirmation: { |
| return new AlertDialog.Builder(this) |
| .setTitle(R.string.confirm_export_title) |
| .setMessage(getString(R.string.confirm_export_message, mTargetFileName)) |
| .setPositiveButton(android.R.string.ok, |
| new ExportConfirmationListener(mTargetFileName)) |
| .setNegativeButton(android.R.string.cancel, this) |
| .setOnCancelListener(this) |
| .create(); |
| } |
| case R.string.fail_reason_too_many_vcard: { |
| mProcessOngoing = false; |
| return new AlertDialog.Builder(this) |
| .setTitle(R.string.exporting_contact_failed_title) |
| .setMessage(getString(R.string.exporting_contact_failed_message, |
| getString(R.string.fail_reason_too_many_vcard))) |
| .setPositiveButton(android.R.string.ok, this) |
| .create(); |
| } |
| case 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(); |
| } |
| case R.id.dialog_sdcard_not_found: { |
| mProcessOngoing = false; |
| return new AlertDialog.Builder(this) |
| .setIconAttribute(android.R.attr.alertDialogIcon) |
| .setMessage(R.string.no_sdcard_message) |
| .setPositiveButton(android.R.string.ok, 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 if (id == R.id.dialog_export_confirmation) { |
| ((AlertDialog)dialog).setMessage( |
| getString(R.string.confirm_export_message, mTargetFileName)); |
| } else { |
| super.onPrepareDialog(id, dialog, args); |
| } |
| } |
| |
| @Override |
| protected void onStop() { |
| super.onStop(); |
| |
| if (!isFinishing()) { |
| unbindAndFinish(); |
| } |
| } |
| |
| @Override |
| public void onClick(DialogInterface dialog, int which) { |
| if (DEBUG) Log.d(LOG_TAG, "ExportVCardActivity#onClick() is called"); |
| unbindAndFinish(); |
| } |
| |
| @Override |
| public void onCancel(DialogInterface dialog) { |
| if (DEBUG) Log.d(LOG_TAG, "ExportVCardActivity#onCancel() is called"); |
| mProcessOngoing = false; |
| unbindAndFinish(); |
| } |
| |
| @Override |
| public void unbindService(ServiceConnection conn) { |
| mProcessOngoing = false; |
| super.unbindService(conn); |
| } |
| |
| private synchronized void unbindAndFinish() { |
| if (mConnected) { |
| unbindService(this); |
| mConnected = false; |
| } |
| finish(); |
| } |
| } |