1 files changed, 173 insertions, 0 deletions
diff --git a/apps/SdkController/src/com/android/tools/sdkcontroller/handlers/MultiTouchChannel.java b/apps/SdkController/src/com/android/tools/sdkcontroller/handlers/MultiTouchChannel.java
new file mode 100755
index 000000000..ad00e921e
--- /dev/null
+++ b/apps/SdkController/src/com/android/tools/sdkcontroller/handlers/MultiTouchChannel.java
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.android.tools.sdkcontroller.handlers;
+
+import android.graphics.Point;
+import android.os.Message;
+import android.util.Log;
+
+import com.android.tools.sdkcontroller.lib.Channel;
+import com.android.tools.sdkcontroller.lib.ProtocolConstants;
+import com.android.tools.sdkcontroller.service.ControllerService;
+
+import java.nio.ByteBuffer;
+
+/**
+ * Implements multi-touch emulation.
+ */
+public class MultiTouchChannel extends Channel {
+
+    @SuppressWarnings("hiding")
+    private static final String TAG = MultiTouchChannel.class.getSimpleName();
+    /**
+     * A new frame buffer has been received from the emulator.
+     * Parameter {@code obj} is a {@code byte[] array} containing the screen data.
+     */
+    public static final int EVENT_FRAME_BUFFER = 1;
+    /**
+     * A multi-touch "start" command has been received from the emulator.
+     * Parameter {@code obj} is the string parameter from the start command.
+     */
+    public static final int EVENT_MT_START = 2;
+    /**
+     * A multi-touch "stop" command has been received from the emulator. There
+     * is no {@code obj} parameter associated.
+     */
+    public static final int EVENT_MT_STOP = 3;
+
+    private static final Point mViewSize = new Point(0, 0);
+
+    /**
+     * Constructs MultiTouchChannel instance.
+     */
+    public MultiTouchChannel(ControllerService service) {
+        super(service, Channel.MULTITOUCH_CHANNEL);
+    }
+
+    /**
+     * Sets size of the display view for emulated screen updates.
+     *
+     * @param width View width in pixels.
+     * @param height View height in pixels.
+     */
+    public void setViewSize(int width, int height) {
+        mViewSize.set(width, height);
+    }
+
+    /*
+     * Channel abstract implementation.
+     */
+
+    /**
+     * This method is invoked when this channel is fully connected with its
+     * counterpart in the emulator.
+     */
+    @Override
+    public void onEmulatorConnected() {
+        if (hasUiHandler()) {
+            enable();
+            notifyUiHandlers(EVENT_MT_START);
+        }
+    }
+
+    /**
+     * This method is invoked when this channel loses connection with its
+     * counterpart in the emulator.
+     */
+    @Override
+    public void onEmulatorDisconnected() {
+        if (hasUiHandler()) {
+            disable();
+            notifyUiHandlers(EVENT_MT_STOP);
+        }
+    }
+
+    /**
+     * A message has been received from the emulator.
+     *
+     * @param msg_type Message type.
+     * @param msg_data Packet received from the emulator.
+     */
+    @Override
+    public void onEmulatorMessage(int msg_type, ByteBuffer msg_data) {
+        switch (msg_type) {
+            case ProtocolConstants.MT_FB_UPDATE:
+                Message msg = Message.obtain();
+                msg.what = EVENT_FRAME_BUFFER;
+                msg.obj = msg_data;
+                postMessage(ProtocolConstants.MT_FB_ACK, (byte[]) null);
+                notifyUiHandlers(msg);
+                break;
+
+            default:
+                Log.e(TAG, "Unknown message type " + msg_type);
+        }
+    }
+
+    /**
+     * A query has been received from the emulator.
+     *
+     * @param query_id Identifies the query. This ID must be used when replying
+     *            to the query.
+     * @param query_type Query type.
+     * @param query_data Query data.
+     */
+    @Override
+    public void onEmulatorQuery(int query_id, int query_type, ByteBuffer query_data) {
+        Loge("Unexpected query " + query_type + " in multi-touch");
+        sendQueryResponse(query_id, (byte[]) null);
+    }
+
+    /**
+     * Registers a new UI handler.
+     *
+     * @param uiHandler A non-null UI handler to register. Ignored if the UI
+     *            handler is null or already registered.
+     */
+    @Override
+    public void addUiHandler(android.os.Handler uiHandler) {
+        final boolean first_handler = !hasUiHandler();
+        super.addUiHandler(uiHandler);
+        if (first_handler && isConnected()) {
+            enable();
+            notifyUiHandlers(EVENT_MT_START);
+        }
+    }
+
+    /**
+     * Unregisters an UI handler.
+     *
+     * @param uiHandler A non-null UI listener to unregister. Ignored if the
+     *            listener is null or already registered.
+     */
+    @Override
+    public void removeUiHandler(android.os.Handler uiHandler) {
+        super.removeUiHandler(uiHandler);
+        if (isConnected() && !hasUiHandler()) {
+            disable();
+        }
+    }
+
+    /***************************************************************************
+     * Logging wrappers
+     **************************************************************************/
+
+    private void Loge(String log) {
+        mService.addError(log);
+        Log.e(TAG, log);
+    }
+}