Implements an app that captures touch events and transfers them to emulator.

This application is intended to provide realistic multi-touch emulation.

Change-Id: I7bc477d99eea811a349ecc640f32cb4167d3ce18

9 files changed, 354 insertions, 0 deletions

diff --git a/apps/SdkController/.gitignore b/apps/SdkController/.gitignore
index 0bbcb2f..1ea39a4 100644
--- a/apps/SdkController/.gitignore
+++ b/apps/SdkController/.gitignore
@@ -3,3 +3,5 @@
 SdkControllerLib/bin/
 SdkControllerSensor/bin/
 SdkControllerSensor/gen/
+SdkControllerMultitouch/bin/
+SdkControllerMultitouch/gen/
diff --git a/apps/SdkController/SdkControllerMultitouch/AndroidManifest.xml b/apps/SdkController/SdkControllerMultitouch/AndroidManifest.xml
new file mode 100644
index 0000000..8159efc
--- /dev/null
+++ b/apps/SdkController/SdkControllerMultitouch/AndroidManifest.xml
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+ * Copyright 2010 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.
+ */
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.tools.sdkcontroller.sdkcontrollermultitouch"
+    android:versionCode="1"
+    android:versionName="1.0" >
+
+    <uses-sdk android:minSdkVersion="7" />
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <application
+        android:icon="@drawable/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
+        <activity
+            android:label="@string/app_name"
+            android:configChanges="orientation|keyboardHidden|mcc|mnc|locale|touchscreen|keyboard|navigation|screenLayout|fontScale"
+            android:name=".SdkControllerMultitouchActivity" >
+            <intent-filter >
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
\ No newline at end of file
diff --git a/apps/SdkController/SdkControllerMultitouch/project.properties b/apps/SdkController/SdkControllerMultitouch/project.properties
new file mode 100644
index 0000000..d3d8dc4
--- /dev/null
+++ b/apps/SdkController/SdkControllerMultitouch/project.properties
@@ -0,0 +1,12 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system use,
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+
+# Project target.
+target=android-7
+android.library.reference.1=../SdkControllerLib
diff --git a/apps/SdkController/SdkControllerMultitouch/res/drawable-hdpi/ic_launcher.png b/apps/SdkController/SdkControllerMultitouch/res/drawable-hdpi/ic_launcher.png
new file mode 100644
index 0000000..8074c4c
--- /dev/null
+++ b/apps/SdkController/SdkControllerMultitouch/res/drawable-hdpi/ic_launcher.png
diff --git a/apps/SdkController/SdkControllerMultitouch/res/drawable-ldpi/ic_launcher.png b/apps/SdkController/SdkControllerMultitouch/res/drawable-ldpi/ic_launcher.png
new file mode 100644
index 0000000..1095584
--- /dev/null
+++ b/apps/SdkController/SdkControllerMultitouch/res/drawable-ldpi/ic_launcher.png
diff --git a/apps/SdkController/SdkControllerMultitouch/res/drawable-mdpi/ic_launcher.png b/apps/SdkController/SdkControllerMultitouch/res/drawable-mdpi/ic_launcher.png
new file mode 100644
index 0000000..a07c69f
--- /dev/null
+++ b/apps/SdkController/SdkControllerMultitouch/res/drawable-mdpi/ic_launcher.png
diff --git a/apps/SdkController/SdkControllerMultitouch/res/layout/main.xml b/apps/SdkController/SdkControllerMultitouch/res/layout/main.xml
new file mode 100644
index 0000000..1371302
--- /dev/null
+++ b/apps/SdkController/SdkControllerMultitouch/res/layout/main.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout
+      xmlns:android="http://schemas.android.com/apk/res/android"
+      android:layout_width="fill_parent"
+      android:layout_height="fill_parent" >
+   <ImageView android:id="@+id/imageView"
+         android:layout_width="fill_parent"
+         android:layout_height="fill_parent" >
+   </ImageView>
+</FrameLayout>
\ No newline at end of file
diff --git a/apps/SdkController/SdkControllerMultitouch/res/values/strings.xml b/apps/SdkController/SdkControllerMultitouch/res/values/strings.xml
new file mode 100644
index 0000000..3db1f19
--- /dev/null
+++ b/apps/SdkController/SdkControllerMultitouch/res/values/strings.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">SDK Controller Multitouch</string>
+
+</resources>
\ No newline at end of file
diff --git a/apps/SdkController/SdkControllerMultitouch/src/com/android/tools/sdkcontroller/sdkcontrollermultitouch/SdkControllerMultitouchActivity.java b/apps/SdkController/SdkControllerMultitouch/src/com/android/tools/sdkcontroller/sdkcontrollermultitouch/SdkControllerMultitouchActivity.java
new file mode 100644
index 0000000..810eb80
--- /dev/null
+++ b/apps/SdkController/SdkControllerMultitouch/src/com/android/tools/sdkcontroller/sdkcontrollermultitouch/SdkControllerMultitouchActivity.java
@@ -0,0 +1,282 @@
+/*
+ * Copyright (C) 2011 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.sdkcontrollermultitouch;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.View.OnTouchListener;
+
+import com.android.tools.sdkcontroller.lib.Emulator;
+import com.android.tools.sdkcontroller.lib.Emulator.EmulatorConnectionType;
+import com.android.tools.sdkcontroller.lib.OnEmulatorListener;
+
+import java.io.IOException;
+
+/**
+ * Encapsulates an application that monitors multi-touch activities on a device,
+ * and reports them to an Android Emulator application running on the host
+ * machine. This application is used to provide a realistic multi-touch emulation
+ * in Android Emulator.
+ */
+public class SdkControllerMultitouchActivity extends Activity implements OnEmulatorListener {
+    /** Tag for logging messages. */
+    private static final String TAG = "SdkControllerMultitouch";
+
+    /** TCP over USB connection to the emulator. */
+    private Emulator mEmulator;
+    /** View for this application. */
+    private View mView;
+    /** Listener to touch events. */
+    private TouchListener mTouchListener;
+    /** Multiplier for an X coordinate of a pointer. */
+    private float mDx = 1;
+    /** Multiplier for a Y coordinate of a pointer. */
+    private float mDy = 1;
+
+    /**
+     * Implements OnTouchListener interface that receives touch screen events,
+     * and reports them to the emulator application.
+     */
+    class TouchListener implements OnTouchListener {
+        /**
+         * Touchscreen event handler.
+         */
+        @Override
+        public boolean onTouch(View v, MotionEvent event) {
+            StringBuilder sb = new StringBuilder();
+            final int action = event.getAction();
+            final int action_code = action & MotionEvent.ACTION_MASK;
+            final int action_pid_index = action >> MotionEvent.ACTION_POINTER_ID_SHIFT;
+
+            /*
+             * Build message for the emulator.
+             */
+
+            switch (action_code) {
+                case MotionEvent.ACTION_MOVE:
+                    sb.append("action=move");
+                    for (int n = 0; n < event.getPointerCount(); n++) {
+                        constructEventMessage(sb, event, n);
+                    }
+                    break;
+                case MotionEvent.ACTION_DOWN:
+                    sb.append("action=down");
+                    constructEventMessage(sb, event, action_pid_index);
+                    break;
+                case MotionEvent.ACTION_UP:
+                    sb.append("action=up pid=").append(event.getPointerId(action_pid_index));
+                    break;
+                case MotionEvent.ACTION_POINTER_DOWN:
+                    sb.append("action=pdown");
+                    constructEventMessage(sb, event, action_pid_index);
+                    break;
+                case MotionEvent.ACTION_POINTER_UP:
+                    sb.append("action=pup pid=").append(event.getPointerId(action_pid_index));
+                    break;
+                default:
+                    Logw("Unknown action type: " + action_code);
+                    return true;
+            }
+
+            Logv(sb.toString());
+            mEmulator.sendNotification(sb.toString() + '\0');
+            return true;
+        }
+
+        /**
+         * Constructs touch event message to be send to emulator.
+         *<p/>
+         * @param sb String builder where to construct the message.
+         * @param event Event for which to construct the message.
+         * @param ptr_index Index of the motion pointer for which to construct
+         *            the message.
+         */
+        private void constructEventMessage(StringBuilder sb, MotionEvent event, int ptr_index) {
+            sb.append(" pid=").append(event.getPointerId(ptr_index));
+            sb.append(" x=").append((int) (mDx * event.getX(ptr_index)));
+            sb.append(" y=").append((int) (mDy * event.getY(ptr_index)));
+            sb.append(" pressure=").append((int) event.getPressure(ptr_index));
+        }
+    } // TouchListener
+
+    /** Called when the activity is first created. */
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.main);
+
+        // Instantiate emulator connector.
+        try {
+            mEmulator = new Emulator(Emulator.MULTITOUCH_PORT,
+                    EmulatorConnectionType.SYNC_CONNECTION, this);
+        } catch (IOException e) {
+            Loge("Exception while creating server socket: " + e.getMessage());
+            finish();
+        }
+
+        // Create listener for touch events.
+        mView = findViewById(R.id.imageView);
+        mTouchListener = new TouchListener();
+    }
+
+    /***************************************************************************
+     * OnEmulatorListener implementation
+     **************************************************************************/
+
+    /**
+     * Called when emulator is connected. NOTE: This method is called from the
+     * I/O loop, so all communication with the emulator will be "on hold" until
+     * this method returns.
+     */
+    @Override
+    public void onEmulatorConnected() {
+    }
+
+    /**
+     * Called when emulator is disconnected.
+     */
+    @Override
+    public void onEmulatorDisconnected() {
+        // Stop listening on events, and let it cool for a sec...
+        onStopEvents();
+        try {
+            Thread.sleep(500);
+        } catch (Exception e) {
+        }
+
+        // Instantiate emulator connector for the next client.
+        try {
+            mEmulator = new Emulator(Emulator.MULTITOUCH_PORT,
+                    EmulatorConnectionType.SYNC_CONNECTION, this);
+        } catch (IOException e) {
+            Loge("Exception while creating server socket: " + e.getMessage());
+            finish();
+        }
+    }
+
+    /**
+     * Called when a query is received from the emulator. NOTE: This method is
+     * called from the I/O loop.
+     *<p/>
+     * @param query Name of the query received from the emulator. The allowed
+     *            queries are:
+     *          - 'start' - Starts delivering touch screen events to the emulator.
+     *          - 'stop' - Stops delivering touch screen events to the emulator.
+     * @param param Query parameters.
+     * @return Zero-terminated reply string. String must be formatted as such:
+     *         "ok|ko[:reply data]"
+     */
+    @Override
+    public String onEmulatorQuery(String query, String param) {
+        if (query.contentEquals("start")) {
+            return onQueryStart(param);
+        } else if (query.contentEquals("stop")) {
+            return onQueryStop();
+        } else {
+            Loge("Unknown query " + query + "(" + param + ")");
+            return "ko:Unknown query\0";
+        }
+    }
+
+    /***************************************************************************
+     * Emulator query handlers
+     **************************************************************************/
+
+    /**
+     * Handles 'start' query.
+     *<p/>
+     * @return 'ok:<WidthxHeight> on success, or 'ko:<reason>' on failure. Width
+     *         and height returned on success represent width and height of the
+     *         application view.
+     */
+    private String onQueryStart(String param) {
+        // Lets see if query has parameters.
+        int sep = param.indexOf('x');
+        if (sep != -1) {
+            String dx = param.substring(0, sep);
+            String dy = param.substring(sep + 1);
+            int x = Integer.parseInt(dx);
+            int y = Integer.parseInt(dy);
+            mDy = (float) y / (float) mView.getHeight();
+            mDx = (float) x / (float) mView.getWidth();
+            Logv("Emulator: " + x + "x" + y +
+                    " to screen: " + mView.getWidth() + "x" + mView.getHeight() + " ratio: " +
+                    mDx + "x" + mDy);
+        }
+        onStartEvents();
+        return "ok:" + mView.getWidth() + "x" + mView.getHeight() + "\0";
+    }
+
+    /**
+     * Handles 'stop' query.
+     *<p/>
+     * @return 'ok'.
+     */
+    private String onQueryStop() {
+        onStopEvents();
+        return "ok\0";
+    }
+
+    /***************************************************************************
+     * Internals
+     **************************************************************************/
+
+    /**
+     * Registers touch screen event listener, and starts receiving touch screen
+     * events.
+     */
+    private void onStartEvents() {
+        mView.post(new Runnable() {
+            @Override
+            public void run() {
+                mView.setOnTouchListener(mTouchListener);
+            }
+        });
+    }
+
+    /**
+     * Unregisters touch screen event listener, and stops receiving touch screen
+     * events.
+     */
+    private void onStopEvents() {
+        mView.post(new Runnable() {
+            @Override
+            public void run() {
+                mView.setOnTouchListener(null);
+            }
+        });
+    }
+
+    /***************************************************************************
+     * Logging wrappers
+     **************************************************************************/
+
+    private void Loge(String log) {
+        Log.e(TAG, log);
+    }
+
+    private void Logw(String log) {
+        Log.w(TAG, log);
+    }
+
+    private void Logv(String log) {
+        Log.v(TAG, log);
+    }
+}