Android Open Source - phonegap-lite-android Web View Reflect

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License

The source code is released under:

MIT License

Java Source Code

/*
 * PhoneGap is available under *either* the terms of the modified BSD license *or* the
 * MIT License (2008). See http://opensource.org/licenses/alphabetical for full text.
 * // w ww.j  ava2 s. com
 * Copyright (c) 2005-2010, Nitobi Software Inc.
 * Copyright (c) 2010, IBM Corporation
 */
package com.phonegap;

import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import android.webkit.WebSettings;

public class WebViewReflect {
     private static Method mWebSettings_setDatabaseEnabled;
     private static Method mWebSettings_setDatabasePath;
     private static Method mWebSettings_setDomStorageEnabled;
     private static Method mWebSettings_setGeolocationEnabled;
     
     static 
     {
       checkCompatibility();
     }
     
     private static void setDatabaseEnabled(boolean e) throws IOException {
       try
       {
         mWebSettings_setDatabaseEnabled.invoke(e);
       }
       catch (InvocationTargetException ite) {
             /* unpack original exception when possible */
             Throwable cause = ite.getCause();
             if (cause instanceof IOException) {
                 throw (IOException) cause;
             } else if (cause instanceof RuntimeException) {
                 throw (RuntimeException) cause;
             } else if (cause instanceof Error) {
                 throw (Error) cause;
             } else {
                 /* unexpected checked exception; wrap and re-throw */
                 throw new RuntimeException(ite);
             }
         } catch (IllegalAccessException ie) {
             System.err.println("unexpected " + ie);
         }     
     }     
     
     
     public static void checkCompatibility() {
         try {
             mWebSettings_setDatabaseEnabled = WebSettings.class.getMethod(
                     "setDatabaseEnabled", new Class[] { boolean.class } );
             mWebSettings_setDatabasePath = WebSettings.class.getMethod(
                 "setDatabasePath", new Class[] { String.class });
             mWebSettings_setDomStorageEnabled = WebSettings.class.getMethod(
                 "setDomStorageEnabled", new Class[] { boolean.class });
             mWebSettings_setGeolocationEnabled = WebSettings.class.getMethod(
                 "setGeolocationEnabled", new Class[] { boolean.class });
             /* success, this is a newer device */
         } catch (NoSuchMethodException nsme) {
             /* failure, must be older device */
         }
     }

     public static void setStorage(WebSettings setting, boolean enable, String path) {
         if (mWebSettings_setDatabaseEnabled != null) {
             /* feature is supported */
           try {
        mWebSettings_setDatabaseEnabled.invoke(setting, enable);
        mWebSettings_setDatabasePath.invoke(setting, path);
           } catch (IllegalArgumentException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      } catch (IllegalAccessException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      } catch (InvocationTargetException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      }
         } else {
             /* feature not supported, do something else */
         }
     }
     public static void setGeolocationEnabled(WebSettings setting, boolean enable) {
       if (mWebSettings_setGeolocationEnabled != null) {
         /* feature is supported */
         try {
        mWebSettings_setGeolocationEnabled.invoke(setting, enable);
      } catch (IllegalArgumentException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      } catch (IllegalAccessException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      } catch (InvocationTargetException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      }
       } else {
         /* feature not supported, do something else */
             System.out.println("Native Geolocation not supported - we're ok");
       }
     }
     public static void setDomStorage(WebSettings setting)
     {
       if(mWebSettings_setDomStorageEnabled != null)
       {
           /* feature is supported */
           try {
             mWebSettings_setDomStorageEnabled.invoke(setting, true);
      } catch (IllegalArgumentException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      } catch (IllegalAccessException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      } catch (InvocationTargetException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      }
         } else {
             /* feature not supported, do something else */
         }
         
     }
}

Java Source Code List

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