Android Open Source - SevenWonders Login And Get Permissions

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Back to project page SevenWonders.

License

The source code is released under:

Apache License

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Java Source Code

/*
 * Copyright 2010 Facebook, Inc./*from   ww w.  j  ava2s  .  c  om*/
 *
 * 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 skylight1.sevenwonders.social.facebook;

import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;

import com.facebook.android.DialogError;
import com.facebook.android.Facebook;
import com.facebook.android.Facebook.DialogListener;
import com.facebook.android.FacebookError;

public class LoginAndGetPermissions extends Activity {
    
  // XXX if these ever change have to invlidate any past sessions? they might need more permissions...
  // XXX what if user removes permission later? we would want to reprompt them then too...
  private static final String[] PERMISSIONS =
    new String[] {"publish_stream", "read_stream", "offline_access"};
  
    private Facebook mFacebook;
    
  @Override
  public void onCreate(Bundle savedInstanceState) {
    //ALog.m();
    
    super.onCreate(savedInstanceState);

    mFacebook = new Facebook();
        
        if ( mFacebook.isSessionValid() ) {
        //ALog.i("Already have a saved Facebook session, skipping authorization.");
        
          setResult(RESULT_OK);
          finish();
          return;
        }        
        
        mFacebook.authorize(this, FacebookConfig.getAppId(), PERMISSIONS, new LoginDialogListener());
    //setContentView(R.layout.facebook);
    }
  
  private void showErrorAndFinish() {
    //ALog.m();
    
    FacebookUtil.showFacebookErrorToast(this);
      setResult(RESULT_CANCELED);
    finish();
  }
  
  @Override
  public void onWindowFocusChanged(boolean hasFocus) {
    //ALog.m(hasFocus);
    super.onWindowFocusChanged(hasFocus);
    /*Doesn't work if Facebook decides to show multiple dialogs, you get a spurious call inbetween.
    if ( hasFocus ) {
      //ALog.i("Received focus, assuming Facebook canceled, finishing and returning canceled result.");
        setResult(RESULT_CANCELED);
      finish();
    }
    */
  }

    private final class LoginDialogListener implements DialogListener {
        public void onComplete(Bundle values) {
        //ALog.m();
        
            SessionStore.save(mFacebook, LoginAndGetPermissions.this);
          setResult(RESULT_OK);
          finish();
        }
        public void onFacebookError(FacebookError error) {
        //ALog.m();
        
          showErrorAndFinish();
        }        
        public void onError(DialogError error) {
        //ALog.m();
        
          showErrorAndFinish();
        }
        public void onCancel() {
        //ALog.m();
        
          setResult(RESULT_CANCELED);
            finish();
        }
    }

  @Override
  public boolean onKeyDown(int keyCode, KeyEvent event) {
    //ALog.m();
    
    if ( KeyEvent.KEYCODE_BACK == keyCode ) {
        //ALog.i("Back button detected, setting result to canceled.");
      setResult(RESULT_CANCELED);
    }
    return super.onKeyDown(keyCode, event);
  }    
}

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