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/*
* 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.common.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.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.common.R;
import com.android.contacts.common.activity.RequestImportVCardPermissionsActivity;
/**
* 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;
private String selExport = "";
private static final int REQUEST_CREATE_DOCUMENT = 100;
/**
* 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 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.startPermissionActivity(this)) {
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");
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()
Intent selExportIntent = getIntent();
if(selExportIntent != null) {
selExport = selExportIntent.getStringExtra("SelExport");
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_CREATE_DOCUMENT) {
if (resultCode == Activity.RESULT_OK && data != null && data.getData() != null) {
final Uri mTargetFileName = data.getData();
if (DEBUG) Log.d(LOG_TAG, "exporting to " + mTargetFileName);
final ExportRequest request = new ExportRequest(mTargetFileName);
// The connection object will call finish().
mService.handleExportRequest(request, new NotificationImportExportListener(
ExportVCardActivity.this));
} else if (DEBUG) {
Log.d(LOG_TAG, "create document cancelled or no data returned");
}
unbindAndFinish();
}
}
@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
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));
startActivityForResult(intent, REQUEST_CREATE_DOCUMENT);
}
// 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.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();
}
}
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");
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);
}
/**
* 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;
}
private synchronized void unbindAndFinish() {
if (mConnected) {
unbindService(this);
mConnected = false;
}
finish();
}
}
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