Gamepad API support for chrome on android

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
index 7921262064b3b3a91f7fa48be457f97fc2e933f7..a3116345d523c1c4bdbb458055d290d4ec3a16fe 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
@@ -129,6 +129,8 @@ public class ContentViewCore
     // expects HashSet (no bindings for interfaces).
     private final HashSet<Object> mRetainedJavaScriptObjects = new HashSet<Object>();
 
+    private GamepadList mGamepadList;
+
     /**
      * Interface that consumers of {@link ContentViewCore} must implement to allow the proper
      * dispatching of view methods through the containing view.
@@ -481,6 +483,7 @@ public class ContentViewCore
                 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
         mGestureStateListeners = new ObserverList<GestureStateListener>();
         mGestureStateListenersIterator = mGestureStateListeners.rewindableIterator();
+        mGamepadList = GamepadList.createInstance(context);
     }
 
     /**
@@ -1829,6 +1832,9 @@ public class ContentViewCore
      * @see View#dispatchKeyEvent(KeyEvent)
      */
     public boolean dispatchKeyEvent(KeyEvent event) {
+        if (mGamepadList.isGamepadAccessed() && mGamepadList.isGamepadEvent(event)) {

[kbalazs, 2014/02/20 00:48:24]

I would move both checks to the callee and remove these functions. It's better
if only GamepadList has to know about it's state.

+            return mGamepadList.updateForEvent(event);
+        }
         if (getContentViewClient().shouldOverrideKeyEvent(event)) {
             return mContainerViewInternals.super_dispatchKeyEvent(event);
         }
@@ -1838,6 +1844,18 @@ public class ContentViewCore
         return mContainerViewInternals.super_dispatchKeyEvent(event);
     }
 
+    public void onPause() {
+        if (mGamepadList != null) {
+            mGamepadList.onPause();
+        }
+    }
+
+    public void onResume() {
+        if (mGamepadList != null) {
+            mGamepadList.onResume();
+        }
+    }
+
     /**
      * @see View#onHoverEvent(MotionEvent)
      * Mouse move events are sent on hover enter, hover move and hover exit.
@@ -1862,6 +1880,9 @@ public class ContentViewCore
      * @see View#onGenericMotionEvent(MotionEvent)
      */
     public boolean onGenericMotionEvent(MotionEvent event) {
+        if (mGamepadList.isGamepadAccessed() && mGamepadList.isGamepadEvent(event)) {

[kbalazs, 2014/02/20 00:48:24]

Ditto.

+            return mGamepadList.updateForEvent(event);
+        }
         if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) {
             switch (event.getAction()) {
                 case MotionEvent.ACTION_SCROLL: