Android Open Source - QBShare-Android Tw Dialog

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License

The source code is released under:
Copyright (c) 2011 QBurst, http://qburst.com/ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redi...
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Java Source Code

/*
 * Copyright 2010 Facebook, Inc./*from   ww w .jav  a 2  s .c o  m*/
 *
 * 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.qburst.android.twitter;


import oauth.signpost.commonshttp.CommonsHttpOAuthConsumer;
import oauth.signpost.commonshttp.CommonsHttpOAuthProvider;
import oauth.signpost.exception.OAuthCommunicationException;
import oauth.signpost.exception.OAuthExpectationFailedException;
import oauth.signpost.exception.OAuthMessageSignerException;
import oauth.signpost.exception.OAuthNotAuthorizedException;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.Display;
import android.view.ViewGroup;
import android.view.Window;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.qburst.android.twitter.Twitter.TwitterDialogListener;
import com.qburst.share.R;


public class TwDialog extends Dialog {
  public static final String TAG = "twitter";

    static final int TW_BLUE = 0xFFC0DEED;
    static final float[] DIMENSIONS_LANDSCAPE = {460, 260};
    static final float[] DIMENSIONS_PORTRAIT = {280, 420};
    static final FrameLayout.LayoutParams FILL = 
        new FrameLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, 
                         ViewGroup.LayoutParams.FILL_PARENT);
    static final int MARGIN = 4;
    static final int PADDING = 2;
    
  private int mIcon;
    private String mUrl;
    private TwitterDialogListener mListener;
    private ProgressDialog mSpinner;
    private WebView mWebView;
    private LinearLayout mContent;
    private TextView mTitle;
    private Handler mHandler;
    private Context _context;

  private CommonsHttpOAuthConsumer mConsumer;
  private CommonsHttpOAuthProvider mProvider;

    public TwDialog(Context context,
        CommonsHttpOAuthProvider provider,
        CommonsHttpOAuthConsumer consumer,
        TwitterDialogListener listener, int icon) {
        super(context);
        mProvider = provider;
        mConsumer = consumer;
        mListener = listener;
    mIcon = icon;
    mHandler = new Handler();
    _context= context;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mSpinner = new ProgressDialog(getContext());
        mSpinner.requestWindowFeature(Window.FEATURE_NO_TITLE);
        mSpinner.setMessage(_context.getString(R.string.loading));
        
        mContent = new LinearLayout(getContext());
        mContent.setOrientation(LinearLayout.VERTICAL);
        setUpTitle();
        setUpWebView();
                
        Display display = getWindow().getWindowManager().getDefaultDisplay();
        int width = display.getWidth();
        int height = display.getHeight();
        
        final float scale = getContext().getResources().getDisplayMetrics().density;
        float[] dimensions = display.getWidth() < display.getHeight() ?
            DIMENSIONS_PORTRAIT : DIMENSIONS_LANDSCAPE;
        addContentView(mContent, new FrameLayout.LayoutParams(
            (int) (dimensions[0] * scale + 0.5f),
            (int) (dimensions[1] * scale + 0.5f)));

        retrieveRequestToken();
    }

    @Override
  public void show() {
    super.show();
    mSpinner.show();
  }

  private void setUpTitle() {
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        Drawable icon = getContext().getResources().getDrawable(mIcon);
        mTitle = new TextView(getContext());
        mTitle.setText(_context.getString(R.string.Twitter_information_title));
        mTitle.setTextColor(Color.WHITE);
        mTitle.setTypeface(Typeface.DEFAULT_BOLD);
        mTitle.setBackgroundColor(TW_BLUE);
        mTitle.setPadding(MARGIN + PADDING, MARGIN, MARGIN, MARGIN);
        mTitle.setCompoundDrawablePadding(MARGIN + PADDING);
        mTitle.setCompoundDrawablesWithIntrinsicBounds(
                icon, null, null, null);
        mContent.addView(mTitle);
    }
    
    private void retrieveRequestToken() {
        mSpinner.show();
        new Thread() {
          @Override
          public void run() {
              try {
              mUrl = mProvider.retrieveRequestToken(mConsumer, TwitterConstants.TW_CALLBACK_URI);  
              mWebView.loadUrl(mUrl);
                
            } catch (OAuthMessageSignerException e) {
              mListener.onError(new DialogError(e.getMessage(), -1, Twitter.OAUTH_REQUEST_TOKEN));
              mHandler.post(new Runnable() {
              @Override
              public void run() {
                Toast.makeText(getContext(), R.string.server_communciation_failed, Toast.LENGTH_LONG).show();
                  mSpinner.dismiss();
                  TwDialog.this.dismiss();
              }          
            });
            } catch (OAuthNotAuthorizedException e) {
              mListener.onError(new DialogError(e.getMessage(), -1, Twitter.OAUTH_REQUEST_TOKEN));
              mHandler.post(new Runnable() {
              @Override
              public void run() {
                Toast.makeText(getContext(), R.string.server_communciation_failed, Toast.LENGTH_LONG).show();
                  mSpinner.dismiss();
                  TwDialog.this.dismiss();
              }          
            });
            } catch (OAuthExpectationFailedException e) {
              mListener.onError(new DialogError(e.getMessage(), -1, Twitter.OAUTH_REQUEST_TOKEN));
              mHandler.post(new Runnable() {
              @Override
              public void run() {
                Toast.makeText(getContext(), R.string.server_communciation_failed, Toast.LENGTH_LONG).show();
                  mSpinner.dismiss();
                  TwDialog.this.dismiss();
              }          
            });
            } catch (OAuthCommunicationException e) {
              mListener.onError(new DialogError(e.getMessage(), -1, Twitter.OAUTH_REQUEST_TOKEN));
              mHandler.post(new Runnable() {
              @Override
              public void run() {
                Toast.makeText(getContext(), R.string.server_communciation_failed, Toast.LENGTH_LONG).show();
                  mSpinner.dismiss();
                  TwDialog.this.dismiss();
              }          
            });
            }catch (Exception e) {
              mListener.onError(new DialogError(e.getMessage(), -1, Twitter.OAUTH_REQUEST_TOKEN));
              mHandler.post(new Runnable() {
              @Override
              public void run() {
                Toast.makeText(getContext(), R.string.server_communciation_failed, Toast.LENGTH_LONG).show();
                  mSpinner.dismiss();
                  TwDialog.this.dismiss();
              }          
            });
            }
          }
        }.start();
    }
    
    private void retrieveAccessToken(final String url) {
        mSpinner.show();
      new Thread() {
        @Override
        public void run() {
          Uri uri = Uri.parse(url);
          String verifier = uri.getQueryParameter(oauth.signpost.OAuth.OAUTH_VERIFIER);
          final Bundle values = new Bundle();
          try {
          mProvider.retrieveAccessToken(mConsumer, verifier);
          values.putString(Twitter.ACCESS_TOKEN, mConsumer.getToken());
          values.putString(Twitter.SECRET_TOKEN, mConsumer.getTokenSecret());
          mListener.onComplete(values);
        } catch (OAuthMessageSignerException e) {
          mListener.onError(new DialogError(e.getMessage(), -1, verifier));
          mHandler.post(new Runnable() {
              @Override
              public void run() {
                Toast.makeText(getContext(), R.string.server_communciation_failed, Toast.LENGTH_LONG).show();
              }          
            });    
          } catch (OAuthNotAuthorizedException e) {
          mListener.onTwitterError(new TwitterError(e.getMessage()));
          mHandler.post(new Runnable() {
              @Override
              public void run() {
                Toast.makeText(getContext(), R.string.server_communciation_failed, Toast.LENGTH_LONG).show();        
              }          
            });          } catch (OAuthExpectationFailedException e) {
          mListener.onTwitterError(new TwitterError(e.getMessage()));
          mHandler.post(new Runnable() {
              @Override
              public void run() {
                Toast.makeText(getContext(), R.string.server_communciation_failed, Toast.LENGTH_LONG).show();        
              }          
            });          } catch (OAuthCommunicationException e) {
          mListener.onError(new DialogError(e.getMessage(), -1, verifier));
          mHandler.post(new Runnable() {
              @Override
              public void run() {
                Toast.makeText(getContext(), R.string.server_communciation_failed, Toast.LENGTH_LONG).show();        
              }          
            });          }
        mHandler.post(new Runnable() {
          @Override
          public void run() {
            mSpinner.dismiss();
            TwDialog.this.dismiss();
          }          
        });
        }
      }.start();
    }
    
    private void setUpWebView() {
        mWebView = new WebView(getContext());
        mWebView.setVerticalScrollBarEnabled(false);
        mWebView.setHorizontalScrollBarEnabled(false);
        mWebView.setWebViewClient(new TwDialog.TwWebViewClient());
        mWebView.getSettings().setJavaScriptEnabled(true);
        //mWebView.loadUrl(mUrl);
        mWebView.setLayoutParams(FILL);
        mContent.addView(mWebView);
    }

    private class TwWebViewClient extends WebViewClient {

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            Log.d(TAG, "Redirect URL: " + url);
            super.shouldOverrideUrlLoading(view, url);
            if (url.startsWith(TwitterConstants.TW_CALLBACK_URI)) {
              retrieveAccessToken(url);
                return true;
            } else if (url.startsWith(Twitter.CANCEL_URI)) {
                mListener.onCancel();
                TwDialog.this.dismiss();
                return true;
            }
            // launch non-dialog URLs in a full browser
            getContext().startActivity(
                    new Intent(Intent.ACTION_VIEW, Uri.parse(url))); 
            return true;
        }

        @Override
        public void onReceivedError(WebView view, int errorCode,
                String description, String failingUrl) {
            super.onReceivedError(view, errorCode, description, failingUrl);
            mListener.onError(
                    new DialogError(description, errorCode, failingUrl));
            TwDialog.this.dismiss();
        }

        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            Log.d(TAG, "WebView loading URL: " + url);
            super.onPageStarted(view, url, favicon);
            if (url.startsWith(TwitterConstants.TW_CALLBACK_URI)) {
              retrieveAccessToken(url);
              TwDialog.this.dismiss();
              mSpinner.dismiss(); 
              Util.clearCookies(_context);
            }else
            {if (mSpinner.isShowing()) {
              mSpinner.dismiss();
            }
            mSpinner.show();
            }
        }

        @Override
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);
            String title = mWebView.getTitle();
            if (title != null && title.length() > 0) {
                mTitle.setText(title);
            }
            mSpinner.dismiss();
        }   
        
    }
    
    @Override
  public void onBackPressed() {
    super.onBackPressed();
    mSpinner.dismiss();
    TwDialog.this.dismiss();
    this.mWebView.destroy();
    mListener.onCancel();
    
  }
}
Java Source Code List
