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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 android.accounts;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
/**
* Base class for implementing an Activity that is used to help implement an
* AbstractAccountAuthenticator. If the AbstractAccountAuthenticator needs to return an Intent
* that is to be used to launch an Activity that needs to return results to satisfy an
* AbstractAccountAuthenticator request, it should store the AccountAuthenticatorResponse
* inside of the Intent as follows:
* <p>
* intent.putExtra(Constants.ACCOUNT_AUTHENTICATOR_RESPONSE_KEY, response);
* <p>
* The activity that it launches should extend the AccountAuthenticatorActivity. If this
* activity has a result that satisfies the original request it sets it via:
* <p>
* setAccountAuthenticatorResult(result)
* <p>
* This result will be sent as the result of the request when the activity finishes. If this
* is never set or if it is set to null then the request will be canceled when the activity
* finishes.
*/
public class AccountAuthenticatorActivity extends Activity {
private AccountAuthenticatorResponse mAccountAuthenticatorResponse = null;
private Bundle mResultBundle = null;
/**
* Set the result that is to be sent as the result of the request that caused this
* Activity to be launched. If result is null or this method is never called then
* the request will be canceled.
* @param result this is returned as the result of the AbstractAccountAuthenticator request
*/
public final void setAccountAuthenticatorResult(Bundle result) {
mResultBundle = result;
}
/**
* Retreives the AccountAuthenticatorResponse from either the intent of the icicle, if the
* icicle is non-zero.
* @param icicle the save instance data of this Activity, may be null
*/
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
if (icicle == null) {
Intent intent = getIntent();
mAccountAuthenticatorResponse =
intent.getParcelableExtra(Constants.ACCOUNT_AUTHENTICATOR_RESPONSE_KEY);
} else {
mAccountAuthenticatorResponse =
icicle.getParcelable(Constants.ACCOUNT_AUTHENTICATOR_RESPONSE_KEY);
}
if (mAccountAuthenticatorResponse != null) {
mAccountAuthenticatorResponse.onRequestContinued();
}
}
/**
* Saves the AccountAuthenticatorResponse in the instance state.
* @param outState where to store any instance data
*/
protected void onSaveInstanceState(Bundle outState) {
outState.putParcelable(Constants.ACCOUNT_AUTHENTICATOR_RESPONSE_KEY,
mAccountAuthenticatorResponse);
super.onSaveInstanceState(outState);
}
/**
* Sends the result or a Constants.ERROR_CODE_CANCELED error if a result isn't present.
*/
public void finish() {
if (mAccountAuthenticatorResponse != null) {
// send the result bundle back if set, otherwise send an error.
if (mResultBundle != null) {
mAccountAuthenticatorResponse.onResult(mResultBundle);
} else {
mAccountAuthenticatorResponse.onError(Constants.ERROR_CODE_CANCELED, "canceled");
}
mAccountAuthenticatorResponse = null;
}
super.finish();
}
}
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