[Android Client] Move session-scoped native interface into JniClient

remoting/android/java/src/org/chromium/chromoting/jni/JniInterface.java

 // Copyright 2013 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.chromoting.jni;
 
 import android.content.Context;
-import android.graphics.Bitmap;
 
 import org.chromium.base.ContextUtils;
 import org.chromium.base.Log;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.chromoting.OAuthTokenConsumer;
 import org.chromium.chromoting.base.OAuthTokenFetcher;
 
-import java.nio.ByteBuffer;
-
 /**
  * Initializes the Chromium remoting library, and provides JNI calls into it.
  * All interaction with the native code is centralized in this class.
  */
 @JNINamespace("remoting")
 public class JniInterface {
     private static final String TAG = "Chromoting";
 
     private static final String TOKEN_SCOPE = "oauth2:https://www.googleapis.com/auth/chromoting";
 
     // Used to fetch auth token for native client.
     private static OAuthTokenConsumer sLoggerTokenConsumer;
 
     private static String sAccount;
 
     /**
      * To be called once from the Application context singleton. Loads and initializes the native
      * code. Called on the UI thread.
      * @param context The Application context.
      */
     public static void loadLibrary(Context context) {
         ContextUtils.initApplicationContext(context.getApplicationContext());
         sLoggerTokenConsumer = new OAuthTokenConsumer(context.getApplicationContext(), TOKEN_SCOPE);
         System.loadLibrary("remoting_client_jni");
         ContextUtils.initApplicationContextForNative();
         nativeLoadNative();
     }
 
-    /** Performs the native portion of the initialization. */
-    private static native void nativeLoadNative();
-
-    /** Performs the native portion of the connection. */
-    static native void nativeConnect(String username, String authToken, String hostJid,
-            String hostId, String hostPubkey, String pairId, String pairSecret,
-            String capabilities, String flags);
-
-    /** Performs the native portion of the cleanup. */
-    static native void nativeDisconnect();
-
-    /** Called by native code whenever the connection status changes. Called on the UI thread. */
-    @CalledByNative
-    private static void onConnectionState(int stateCode, int errorCode) {
-        if (Client.getInstance() != null) {
-            Client.getInstance().onConnectionState(stateCode, errorCode);
-        }
-    }
-
-    /** Prompts the user to enter a PIN. Called on the UI thread. */
-    @CalledByNative
-    private static void displayAuthenticationPrompt(boolean pairingSupported) {
-        if (Client.getInstance() != null) {
-            Client.getInstance().displayAuthenticationPrompt(pairingSupported);
-        }
-    }
-
-    /** Native implementation of Client.handleAuthenticationResponse(). */
-    static native void nativeAuthenticationResponse(
-            String pin, boolean createPair, String deviceName);
-
-    /** Saves newly-received pairing credentials to permanent storage. Called on the UI thread. */
-    @CalledByNative
-    private static void commitPairingCredentials(String host, String id, String secret) {
-        if (Client.getInstance() != null) {
-            Client.getInstance().commitPairingCredentials(host, id, secret);
-        }
-    }
-
-    /** Passes mouse information to the native handling code. */
-    static native void nativeSendMouseEvent(
-            int x, int y, int whichButton, boolean buttonDown);
-
-    /** Passes mouse-wheel information to the native handling code. */
-    static native void nativeSendMouseWheelEvent(int deltaX, int deltaY);
-
-    /**
-     * Passes key press information to the native handling code.
-     */
-    static native boolean nativeSendKeyEvent(int scanCode, int keyCode, boolean keyDown);
-
-    /** Passes text event information to the native handling code. */
-    static native void nativeSendTextEvent(String text);
-
-    /** Passes touch event information to the native handling code. */
-    static native void nativeSendTouchEvent(int eventType, TouchEventData[] data);
-
-    /** Native implementation of Client.enableVideoChannel() */
-    static native void nativeEnableVideoChannel(boolean enable);
-
-    /** Schedules a redraw on the native graphics thread. */
-    static native void nativeScheduleRedraw();
-
-    /**
-     * Performs the redrawing callback. This is a no-op if the window isn't visible. Called on the
-     * graphics thread.
-     */
-    @CalledByNative
-    private static void redrawGraphicsInternal() {
-        Client client = Client.getInstance();
-        if (client != null) {
-            client.redrawGraphicsInternal();
-        }
-    }
-
-    /**
-     * Sets a new video frame. Called on the native graphics thread when a new frame is allocated.
-     */
-    @CalledByNative
-    private static void setVideoFrame(Bitmap bitmap) {
-        Client client = Client.getInstance();
-        if (client != null) {
-            client.setVideoFrame(bitmap);
-        }
-    }
-
-    /**
-     * Creates a new Bitmap to hold video frame pixels. Called by native code which stores a global
-     * reference to the Bitmap and writes the decoded frame pixels to it.
-     */
-    @CalledByNative
-    private static Bitmap newBitmap(int width, int height) {
-        return Client.newBitmap(width, height);
-    }
-
-    /**
-     * Updates the cursor shape. This is called on the graphics thread when receiving a new cursor
-     * shape from the host.
-     */
-    @CalledByNative
-    private static void updateCursorShape(
-            int width, int height, int hotspotX, int hotspotY, ByteBuffer buffer) {
-        Client client = Client.getInstance();
-        if (client != null) {
-            client.updateCursorShape(width, height, hotspotX, hotspotY, buffer);
-        }
-    }
-
-    //
-    // Third Party Authentication
-    //
-
-    /** Pops up a third party login page to fetch the token required for authentication. */
-    @CalledByNative
-    private static void fetchThirdPartyToken(String tokenUrl, String clientId, String scope) {
-        if (Client.getInstance() != null) {
-            Client.getInstance().fetchThirdPartyToken(tokenUrl, clientId, scope);
-        }
-    }
-
-    /** Passes authentication data to the native handling code. */
-    static native void nativeOnThirdPartyTokenFetched(String token, String sharedSecret);
-
-    //
-    // Host and Client Capabilities
-    //
-
-    /** Set the list of negotiated capabilities between host and client. Called on the UI thread. */
-    @CalledByNative
-    private static void setCapabilities(String capabilities) {
-        if (Client.getInstance() != null) {
-            Client.getInstance().setCapabilities(capabilities);
-        }
-    }
-
-    //
-    // Extension Message Handling
-    //
-
-    /** Passes on the deconstructed ExtensionMessage to the app. Called on the UI thread. */
-    @CalledByNative
-    private static void handleExtensionMessage(String type, String data) {
-        if (Client.getInstance() != null) {
-            Client.getInstance().handleExtensionMessage(type, data);
-        }
-    }
-
-    /** Passes extension message to the native code. */
-    static native void nativeSendExtensionMessage(String type, String data);
-
     public static void setAccountForLogging(String account) {
         sAccount = account;
     }
 
     @CalledByNative
     private static void fetchAuthToken() {
         if (sAccount == null) {
             throw new IllegalStateException("Account is not set before fetching the auth token.");
         }
         sLoggerTokenConsumer.consume(sAccount, new OAuthTokenFetcher.Callback() {
             @Override
             public void onTokenFetched(String token) {
                 nativeOnAuthTokenFetched(token);
             }
 
             @Override
             public void onError(OAuthTokenFetcher.Error error) {
                 Log.e(TAG, "Failed to fetch auth token for native client.");
             }
         });
     }
 
-    static native void nativeOnAuthTokenFetched(String token);
+    /** Performs the native portion of the initialization. */
+    private static native void nativeLoadNative();
+
+    /** Notifies the native client with the new auth token */
+    private static native void nativeOnAuthTokenFetched(String token);
 }