Adding NativeWindow base class with no activity.

ui/android/java/src/org/chromium/ui/gfx/ActivityNativeWindow.java

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.ui.gfx;
 
 import android.app.Activity;
 import android.content.ActivityNotFoundException;
-import android.content.ContentResolver;
 import android.content.Intent;
-import android.content.res.Resources;
 import android.os.Bundle;
 import android.util.SparseArray;
 import android.widget.Toast;
 
-import org.chromium.base.JNINamespace;
-
 import java.util.HashMap;
 
 /**
  * The window that has access to the main activity and is able to create and receive intents,
  * and show error messages.
  */
-@JNINamespace("ui")
-public class NativeWindow {
+public class ActivityNativeWindow extends NativeWindow {
 
     // Constants used for intent request code bounding.
     private static final int REQUEST_CODE_PREFIX = 1000;
     private static final int REQUEST_CODE_RANGE_SIZE = 100;
     // A string used as a key to store intent errors in a bundle
     static final String WINDOW_CALLBACK_ERRORS = "window_callback_errors";
 
-    // Native pointer to the c++ WindowAndroid object.
-    private int mNativeWindowAndroid = 0;
     private int mNextRequestCode = 0;
     protected Activity mActivity;
-    private SparseArray<IntentCallback> mOutstandingIntents;
-    private HashMap<Integer, String> mIntentErrors;
+    protected SparseArray<IntentCallback> mOutstandingIntents;
+    protected HashMap<Integer, String> mIntentErrors;
 
     /**
-     * An interface that intent callback objects have to implement.
+     * @param activity
      */
-    public interface IntentCallback {
-        /**
-         * Handles the data returned by the requested intent.
-         * @param window A window reference.
-         * @param resultCode Result code of the requested intent.
-         * @param contentResolver An instance of ContentResolver class for accessing returned data.
-         * @param data The data returned by the intent.
-         */
-        public void onIntentCompleted(NativeWindow window, int resultCode,
-                ContentResolver contentResolver, Intent data);
+    public ActivityNativeWindow(Activity activity) {
+        super(activity);
+        mActivity = activity;
+        mOutstandingIntents = new SparseArray<IntentCallback>();
+        mIntentErrors = new HashMap<Integer, String>();
+
     }
 
     /**
-     * Constructs a Window object, saves a reference to the main activity, and initializes the
-     * outstanding intent map. NativeWindowAndroid gets lazily loaded on getNativePointer().
-     * @param activity The main application activity.
-     */
-    public NativeWindow(Activity activity) {
-        mActivity = activity;
-        mOutstandingIntents = new SparseArray<IntentCallback>();
-        mIntentErrors = new HashMap<Integer, String>();
-        mNativeWindowAndroid = 0;
-    }
-
-    /**
-     * Destroys the c++ WindowAndroid object if one has been created.
-     */
-    public void destroy() {
-        if (mNativeWindowAndroid != 0) {
-            nativeDestroy(mNativeWindowAndroid);
-            mNativeWindowAndroid = 0;
-        }
-    }
-
-    /**
-     * Shows an intent and returns the results to the callback object.
-     * @param intent The intent that needs to be showed.
-     * @param callback The object that will receive the results for the intent.
-     * @return Whether the intent was shown.
-     */
-    public boolean showIntent(Intent intent, IntentCallback callback) {
-        return showIntent(intent, callback, null);
-    }
-
-    /**
-     * Shows an intent and returns the results to the callback object.
-     * @param intent The intent that needs to be showed.
-     * @param callback The object that will receive the results for the intent.
-     * @param errorId The id of the error string to be show if activity is paused before intent
-     *                results.
-     * @return Whether the intent was shown.
-     */
-    public boolean showIntent(Intent intent, IntentCallback callback, int errorId) {
-        String error = null;
-        try {
-            error = mActivity.getString(errorId);
-        } catch (Resources.NotFoundException e) { }
-        return showIntent(intent, callback, error);
-    }
-
-    /**
      * Shows an intent and returns the results to the callback object.
      * @param intent The intent that needs to be showed.
      * @param callback The object that will receive the results for the intent.
      * @param error The error string to be show if activity is paused before intent results.
      * @return Whether the intent was shown.
      */
+    @Override
     public boolean showIntent(Intent intent, IntentCallback callback, String error) {
         int requestCode = REQUEST_CODE_PREFIX + mNextRequestCode;
         mNextRequestCode = (mNextRequestCode + 1) % REQUEST_CODE_RANGE_SIZE;
 
         try {
             mActivity.startActivityForResult(intent, requestCode);
         } catch (ActivityNotFoundException e) {
             return false;
         }
 
         mOutstandingIntents.put(requestCode, callback);
         if (error != null) mIntentErrors.put(requestCode, error);
 
         return true;
     }
 
     /**
+     * Displays an error message with a provided error message string.
+     * @param error The error message string to be displayed.
+     */
+    @Override
+    public void showError(String error) {
+        if (error != null) {
+            Toast.makeText(mActivity, error, Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    /**
+     * Displays an error message for a nonexistent callback.
+     * @param error The error message string to be displayed.
+     */
+    protected void showCallbackNonExistentError(String error) {
+        showError(error);
+    }
+
+    /**
+     * Broadcasts the given intent to all interested BroadcastReceivers.
+     */
+    @Override
+    public void sendBroadcast(Intent intent) {
+        mActivity.sendBroadcast(intent);
+    }
+
+    /**
+     * @return Application activity.
+     */
+    public Activity getActivity() {
+        return mActivity;
+    }
+
+    /**
      * Saves the error messages that should be shown if any pending intents would return
      * after the application has been put onPause.
      * @param bundle The bundle to save the information in onPause
      */
     public void saveInstanceState(Bundle bundle) {
         bundle.putSerializable(WINDOW_CALLBACK_ERRORS, mIntentErrors);
     }
 
     /**
      * Restores the error messages that should be shown if any pending intents would return
      * after the application has been put onPause.
      * @param bundle The bundle to restore the information from onResume
      */
     public void restoreInstanceState(Bundle bundle) {
         if (bundle == null) return;
 
         Object errors = bundle.getSerializable(WINDOW_CALLBACK_ERRORS);
         if (errors instanceof HashMap) {
             @SuppressWarnings("unchecked")
             HashMap<Integer, String> intentErrors = (HashMap<Integer, String>) errors;
             mIntentErrors = intentErrors;
         }
     }
 
     /**
-     * Displays an error message with a provided error message string.
-     * @param error The error message string to be displayed.
-     */
-    public void showError(String error) {
-        if (error != null) Toast.makeText(mActivity, error, Toast.LENGTH_SHORT).show();
-    }
-
-    /**
-     * Displays an error message with a provided error message string id.
-     * @param errorId The string id of the error message string to be displayed.
-     */
-    public void showError(int errorId) {
-        String error = null;
-        try {
-            error = mActivity.getString(errorId);
-        } catch (Resources.NotFoundException e) { }
-        showError(error);
-    }
-
-    /**
-     * Displays an error message for a nonexistent callback.
-     * @param error The error message string to be displayed.
-     */
-    protected void showCallbackNonExistentError(String error) {
-        showError(error);
-    }
-
-    /**
-     * @return The main application activity.
-     */
-    public Activity getActivity() {
-        return mActivity;
-    }
-
-    /**
      * Responds to the intent result if the intent was created by the native window.
      * @param requestCode Request code of the requested intent.
      * @param resultCode Result code of the requested intent.
      * @param data The data returned by the intent.
      * @return Boolean value of whether the intent was started by the native window.
      */
     public boolean onActivityResult(int requestCode, int resultCode, Intent data) {
         IntentCallback callback = mOutstandingIntents.get(requestCode);
         mOutstandingIntents.delete(requestCode);
         String errorMessage = mIntentErrors.remove(requestCode);
 
         if (callback != null) {
             callback.onIntentCompleted(this, resultCode,
                     mActivity.getContentResolver(), data);
             return true;
         } else {
             if (errorMessage != null) {
                 showCallbackNonExistentError(errorMessage);
                 return true;
             }
         }
         return false;
     }
 
-    /**
-     * Returns a pointer to the c++ AndroidWindow object and calls the initializer if
-     * the object has not been previously initialized.
-     * @return A pointer to the c++ AndroidWindow.
-     */
-    public int getNativePointer() {
-        if (mNativeWindowAndroid == 0) {
-            mNativeWindowAndroid = nativeInit();
-        }
-        return mNativeWindowAndroid;
-    }
-
-    private native int nativeInit();
-    private native void nativeDestroy(int nativeWindowAndroid);
-
 }