Add a service for receiving hardware keys

sky/services/engine/input_event.mojom

@@ -8,6 +8,15 @@ module sky;
 enum EventType {
   UNKNOWN,
   BACK,
+  KEY_PRESSED,
+  KEY_RELEASED,
+};
+
+struct KeyData {
+  int32 key_code;
+  int32 flags;
+  int32 scan_code;
+  int32 meta_state;
 };
 
 // TODO(abarth): Should we have a malloc-free way of creating an input event
@@ -15,4 +24,5 @@ enum EventType {
 struct InputEvent {
   EventType type;
   int64 time_stamp;
+  KeyData? key_data;
 };

sky/services/raw_keyboard/BUILD.gn

+# Copyright 2015 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.
+
+import("//mojo/public/tools/bindings/mojom.gni")
+
+mojom("interfaces") {
+  sources = [
+    "raw_keyboard.mojom",
+  ]
+
+  deps = [
+    "//sky/services/engine:interfaces"
+  ]
+}
+
+if (is_android) {
+  import("//build/config/android/config.gni")
+  import("//build/config/android/rules.gni")
+
+  android_library("raw_keyboard_lib") {
+    java_files = [
+      "src/org/domokit/raw_keyboard/RawKeyboardServiceImpl.java",
+      "src/org/domokit/raw_keyboard/RawKeyboardServiceState.java",
+    ]
+
+    deps = [
+      "//base:base_java",
+      "//mojo/public/java:bindings",
+      "//mojo/public/java:system",
+      "//sky/services/engine:interfaces_java",
+      ":interfaces_java",
+    ]
+  }
+}
+

sky/services/raw_keyboard/raw_keyboard.mojom

+// Copyright 2015 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.
+
+[DartPackage="sky_services"]
+module raw_keyboard;
+
+import "sky/services/engine/input_event.mojom";
+
+interface RawKeyboardListener {
+  OnKey(sky.InputEvent event);
+};
+
+interface RawKeyboardService {
+  AddListener(RawKeyboardListener listener);
+  RemoveListener(RawKeyboardListener listener);
+};

sky/services/raw_keyboard/src/org/domokit/raw_keyboard/RawKeyboardServiceImpl.java

+// Copyright 2015 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.domokit.raw_keyboard;
+
+import org.chromium.mojo.system.MojoException;
+import org.chromium.mojom.raw_keyboard.RawKeyboardListener;
+import org.chromium.mojom.raw_keyboard.RawKeyboardService;
+
+/**
+ * Android implementation of Keyboard.
+ */
+public class RawKeyboardServiceImpl implements RawKeyboardService {
+    // We have a unique ServiceImpl per connection.  However multiple views
+    // can be sending us key events simultaneously.
+    private static RawKeyboardServiceState sViewState;
+
+    public RawKeyboardServiceImpl() {
+    }
+
+    public static void setViewState(RawKeyboardServiceState state) {
+        if (sViewState != null) sViewState.close();
+        sViewState = state;
+    }
+
+    @Override
+    public void addListener(RawKeyboardListener listener) {
+        sViewState.addListener(listener);
+    }
+
+    @Override
+    public void removeListener(RawKeyboardListener listener) {
+        sViewState.removeListener(listener);
+    }
+
+    @Override
+    public void onConnectionError(MojoException e) {}
+
+    @Override
+    public void close() {
+        if (sViewState == null) return;
+        sViewState.close();
+    }
+}

sky/services/raw_keyboard/src/org/domokit/raw_keyboard/RawKeyboardServiceState.java

+// Copyright 2015 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.domokit.raw_keyboard;
+
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.View;
+
+import java.util.ArrayList;
+
+import org.chromium.mojo.system.MojoException;
+import org.chromium.mojom.raw_keyboard.RawKeyboardListener;
+import org.chromium.mojom.raw_keyboard.RawKeyboardService;
+import org.chromium.mojom.sky.InputEvent;
+import org.chromium.mojom.sky.EventType;
+import org.chromium.mojom.sky.KeyData;
+
+/**
+ * Per-View raw keyboard state.
+ */
+public class RawKeyboardServiceState implements View.OnKeyListener {
+    private static final String TAG = "RawKeyboardServiceState";
+
+    private ArrayList<RawKeyboardListener> mListeners = new ArrayList<RawKeyboardListener>();
+
+    public RawKeyboardServiceState() {
+    }
+
+    public void addListener(RawKeyboardListener listener) {
+        mListeners.add(listener);
+    }
+
+    public void removeListener(RawKeyboardListener listener) {
+        mListeners.remove(listener);
+        listener.close();
+    }
+
+    public void close() {
+    }
+
+    @Override
+    public boolean onKey(View v, int keyCode, KeyEvent nativeEvent) {
+         if (mListeners.isEmpty())
+             return false;
+         InputEvent event = new InputEvent();
+         switch (nativeEvent.getAction()) {
+           case KeyEvent.ACTION_DOWN:
+               event.type = EventType.KEY_PRESSED;
+               break;
+           case KeyEvent.ACTION_UP:
+               event.type = EventType.KEY_RELEASED;
+               break;
+           default:
+               Log.w(TAG, "Unknown key event received");
+               return false;
+         }
+         KeyData keyData = new KeyData();
+         keyData.flags = nativeEvent.getFlags();
+         keyData.scanCode = nativeEvent.getScanCode();
+         keyData.metaState = nativeEvent.getMetaState();
+         keyData.keyCode = keyCode;
+         event.keyData = keyData;
+         for (RawKeyboardListener listener : mListeners)
+             listener.onKey(event);
+         return true;
+    }
+}

sky/shell/BUILD.gn

@@ -151,6 +151,8 @@ if (is_android) {
       "//sky/services/media:media_lib",
       "//sky/services/oknet",
       "//sky/services/pointer:interfaces_java",
+      "//sky/services/raw_keyboard:raw_keyboard_lib",
+      "//sky/services/raw_keyboard:interfaces_java",
       "//sky/services/updater:interfaces_java",
       "//sky/services/vsync:interfaces_java",
       "//sky/services/vsync:vsync_lib",

sky/shell/android/org/domokit/sky/shell/PlatformViewAndroid.java

@@ -6,6 +6,7 @@ package org.domokit.sky.shell;
 
 import android.content.Context;
 import android.os.Build;
+import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.Surface;
 import android.view.SurfaceHolder;
@@ -31,6 +32,9 @@ import org.chromium.mojom.sky.ViewportMetrics;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.domokit.raw_keyboard.RawKeyboardServiceImpl;
+import org.domokit.raw_keyboard.RawKeyboardServiceState;
+
 /**
  * A view containing Sky
  */
@@ -43,6 +47,7 @@ public class PlatformViewAndroid extends SurfaceView {
     private final SurfaceHolder.Callback mSurfaceCallback;
     private final EdgeDims mPadding;
     private final KeyboardServiceState mKeyboardState;
+    private final RawKeyboardServiceState mRawKeyboardState;
 
     /**
      * Dimensions in each of the four cardinal directions.
@@ -100,6 +105,23 @@ public class PlatformViewAndroid extends SurfaceView {
         // TODO(eseidel): We need per-view services!
         mKeyboardState = new KeyboardServiceState(this);
         KeyboardServiceImpl.setViewState(mKeyboardState);
+
+        mRawKeyboardState = new RawKeyboardServiceState();
+        RawKeyboardServiceImpl.setViewState(mRawKeyboardState);
+    }
+
+    @Override
+    public boolean onKeyUp(int keyCode, KeyEvent event) {
+        if (mRawKeyboardState.onKey(this, keyCode, event))
+            return true;
+        return super.onKeyUp(keyCode, event);
+    }
+
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        if (mRawKeyboardState.onKey(this, keyCode, event))
+            return true;
+        return super.onKeyDown(keyCode, event);
     }
 
     SkyEngine getEngine() {

sky/shell/android/org/domokit/sky/shell/SkyApplication.java

@@ -21,12 +21,14 @@ import org.chromium.mojom.activity.PathService;
 import org.chromium.mojom.keyboard.KeyboardService;
 import org.chromium.mojom.media.MediaService;
 import org.chromium.mojom.mojo.NetworkService;
+import org.chromium.mojom.raw_keyboard.RawKeyboardService;
 import org.chromium.mojom.sensors.SensorService;
 import org.chromium.mojom.vsync.VSyncProvider;
 import org.domokit.activity.ActivityImpl;
 import org.domokit.activity.PathServiceImpl;
 import org.domokit.media.MediaServiceImpl;
 import org.domokit.oknet.NetworkServiceImpl;
+import org.domokit.raw_keyboard.RawKeyboardServiceImpl;
 import org.domokit.vsync.VSyncProviderImpl;
 
 /**
@@ -99,6 +101,13 @@ public class SkyApplication extends BaseChromiumApplication {
             }
         });
 
+        registry.register(RawKeyboardService.MANAGER.getName(), new ServiceFactory() {
+            @Override
+            public void connectToService(Context context, Core core, MessagePipeHandle pipe) {
+                RawKeyboardService.MANAGER.bind(new RawKeyboardServiceImpl(), pipe);
+            }
+        });
+
         registry.register(MediaService.MANAGER.getName(), new ServiceFactory() {
             @Override
             public void connectToService(Context context, Core core, MessagePipeHandle pipe) {