Experiments with 2.0 and backwards compatibility

framework/src/com/phonegap/WebViewReflect.java

@@ -0,0 +1,61 @@
+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;
+
+	   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 } );
+	           /* 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 */
+	           setting.setDatabaseEnabled(enable);
+	           setting.setDatabasePath(path);
+	       } else {
+	           /* feature not supported, do something else */
+	           System.out.println("dump not supported");
+	       }
+	   }
+}