bug 852935 - Add Android gamepad backend. r=snorp, rs=smaug

configure.in

@@ -5949,6 +5949,11 @@ case "$OS_TARGET" in
      Darwin|WINNT|Linux)
        MOZ_GAMEPAD=1
        ;;
+     Android)
+       if test "$MOZ_WIDGET_TOOLKIT" != "gonk"; then
+         MOZ_GAMEPAD=1
+       fi
+       ;;
      *)
        ;;
 esac
@@ -5973,6 +5978,9 @@ if test "$MOZ_GAMEPAD"; then
         fi
         MOZ_GAMEPAD_BACKEND=linux
         ;;
+    Android)
+        MOZ_GAMEPAD_BACKEND=android
+        ;;
     *)
         ;;
    esac

dom/tests/mochitest/general/test_interfaces.html

@@ -368,15 +368,15 @@
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "GainNode",
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "Gamepad", desktop: true},
+    {name: "Gamepad", b2g: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "GamepadAxisMoveEvent", desktop: true},
+    {name: "GamepadAxisMoveEvent", b2g: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "GamepadButtonEvent", desktop: true},
+    {name: "GamepadButtonEvent", b2g: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "GamepadButton", desktop: true},
+    {name: "GamepadButton", b2g: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "GamepadEvent", desktop: true},
+    {name: "GamepadEvent", b2g: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "HashChangeEvent",
 // IMPORTANT: Do not change this list without review from a DOM peer!

hal/android/AndroidGamepad.cpp

@@ -0,0 +1,27 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "Hal.h"
+#include "AndroidBridge.h"
+
+using namespace mozilla::hal;
+
+namespace mozilla {
+namespace hal_impl {
+
+void
+StartMonitoringGamepadStatus()
+{
+  mozilla::widget::android::GeckoAppShell::StartMonitoringGamepad();
+}
+
+void
+StopMonitoringGamepadStatus()
+{
+  mozilla::widget::android::GeckoAppShell::StopMonitoringGamepad();
+}
+
+} // hal_impl
+} // mozilla

hal/moz.build

@@ -48,6 +48,10 @@ elif CONFIG['MOZ_GAMEPAD_BACKEND'] == 'linux':
     UNIFIED_SOURCES += [
         'linux/LinuxGamepad.cpp'
     ]
+elif CONFIG['MOZ_GAMEPAD_BACKEND'] == 'android':
+    UNIFIED_SOURCES += [
+        'android/AndroidGamepad.cpp'
+    ]
 
 if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'android':
     UNIFIED_SOURCES += [