Android Open Source - Web-wrapper Wrapper Web View Client

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License

The source code is released under:

Apache License

Java Source Code

package com.periplanisi.android.webwrapper.web;
/*from   w  w w  .j ava2 s  .c  om*/
import java.lang.ref.WeakReference;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.net.http.SslError;
import android.util.Log;
import android.webkit.HttpAuthHandler;
import android.webkit.SslErrorHandler;
import android.webkit.WebView;
import android.webkit.WebViewClient;

import com.periplanisi.android.webwrapper.settings.SettingsHelper;

/**
 * Basic WebViewClient implementation
 * 
 * @author Ioannis Panagiotopoulos <ipanag+android@gmail.com>
 *
 */
public class WrapperWebViewClient extends WebViewClient {
  
  private static final String TAG = "WebClient";
  
  private final WeakReference<Activity> activityWeakRef;
  private String loadUrl;
  private SettingsHelper settingsHelper;
  private boolean loading = false;
  private String username, password;
  
  public WrapperWebViewClient(Activity activity, SettingsHelper settingsHelper) {
    this.activityWeakRef = new WeakReference<Activity>(activity);
    this.settingsHelper = settingsHelper;
  }
  
    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
      Log.d(TAG, "shouldOverride: " + url);
      
      boolean openExternal = settingsHelper.isOpenOtherHostLinks();
      boolean openSameHost = settingsHelper.isOpenSameHostLinks();
      
      if(!openExternal || !openSameHost) {
        try {
          final Activity activity = activityWeakRef.get();
            if (activity != null) {
              Uri uri = Uri.parse(url);
                Uri loadedUri = Uri.parse(loadUrl);
                
                String loadedUriHost = loadedUri.getHost();
                String currentUriHost = uri.getHost();
                
                Log.d(TAG, "loadedUriHost: " + loadedUriHost + " currentUriHost: " + currentUriHost);
                
                if (loadedUriHost.equals(currentUriHost)) {
                if(!openSameHost) {
                  fireUriIntent(activity, uri);
                  return true;
                }
                } else {
                  if(!openExternal) {
                  fireUriIntent(activity, uri);
                  return true;
                }
                }
            }
            
        } catch(final NullPointerException e) {
          e.printStackTrace();
        }
      }
      return false;
    }
    
  /**
   * Open Uri in external application (ie browser)
   * 
   * @param activity
   * @param uri
   */
    private void fireUriIntent(Activity activity, Uri uri) {
    Intent intent = new Intent(Intent.ACTION_VIEW, uri);
    activity.startActivity(intent);
    }
    
    @Override
    public void onPageStarted(WebView view, String url, Bitmap favicon) {
      Log.d(TAG, "onPageStarted: " + url);
      
      // update stored url, in case of redirection
      loadUrl = url;
      loading = true;
      
      final Activity activity = activityWeakRef.get();
      if (activity != null && activity instanceof WebPageLoadListener) {
        ((WebPageLoadListener)activity).onPageStartLoading();
      }
    }
    
    @Override
    public void onPageFinished(WebView view, String url) {
      Log.d(TAG, "onPageFinished: " + url);
      
      if(loading) {
        final Activity activity = activityWeakRef.get();
        if (activity != null && activity instanceof WebPageLoadListener) {
          ((WebPageLoadListener)activity).onPageLoadedSuccessfully();
        }
      }
      
      loading = false;
    }
    
    @Override
    public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
      Log.w(TAG, "onReceivedError: " + failingUrl);
      
      loading = false;
      
      final Activity activity = activityWeakRef.get();
      if (activity != null && activity instanceof WebPageLoadListener) {
        ((WebPageLoadListener)activity).onPageLoadedFailure(errorCode, description, failingUrl);
      }
    }
    
    @Override
    public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
      if(settingsHelper.isIgnoreSslError()) {
        handler.proceed();
      } else {
        handler.cancel();
      }
    }
    
    @Override
    public void onReceivedHttpAuthRequest(WebView view, HttpAuthHandler handler, String host, String realm) {
      Log.w(TAG, "onReceivedHttpAuthRequest: " + realm);
      
      if(username != null && password != null) {
          handler.proceed(username, password);
      } else {
          handler.cancel();
      }
    }

    public void setUsernamePassword(String username, String password) {
        this.username = username;
        this.password = password;
    }

}

Java Source Code List

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