[gnome-games] gamepad: Add StandardGamepadButton

[Adrien Plazas <aplazas src gnome org>]

commit a23eabfbd38a4a043254790acf15b97fb99d6346
Author: Megh Parikh <meghprkh gmail com>
Date:   Mon Jul 18 21:55:26 2016 +0530

    gamepad: Add StandardGamepadButton
    
    This is an enum representing the buttons of a standard gamepad.
    
    This is part of a series of commits to add gamepad support.

 src/Makefile.am                          |    1 +
 src/gamepad/standard-gamepad-button.vala |   75 ++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 0c3f331..ed98cb2 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -61,6 +61,7 @@ gnome_games_SOURCES = \
        gamepad/raw-gamepad.vala \
        gamepad/raw-gamepad-monitor.vala \
        gamepad/standard-gamepad-axis.vala \
+       gamepad/standard-gamepad-button.vala \
        \
        grilo/grilo-cover.vala \
        grilo/grilo-media.vala \
diff --git a/src/gamepad/standard-gamepad-button.vala b/src/gamepad/standard-gamepad-button.vala
new file mode 100644
index 0000000..0eb0004
--- /dev/null
+++ b/src/gamepad/standard-gamepad-button.vala
@@ -0,0 +1,75 @@
+// This file is part of GNOME Games. License: GPLv3
+
+private enum Games.StandardGamepadButton {
+       UNKNOWN,
+
+       /**
+        * The button at the bottom of the action pad.
+        */
+       A,
+
+       /**
+        * The button at the right of the action pad.
+        */
+       B,
+
+       /**
+        * The button at the left of the action pad.
+        */
+       X,
+
+       /**
+        * The button at the top of the action pad.
+        */
+       Y,
+
+       /**
+        * The button at the left of the top of the gamepad.
+        */
+       SHOULDER_L,
+
+       /**
+        * The button at the right of the top of the gamepad.
+        */
+       SHOULDER_R,
+
+       /**
+        * The trigger at the left of the top of the gamepad.
+        */
+       TRIGGER_L,
+
+       /**
+        * The trigger at the right of the top of the gamepad.
+        */
+       TRIGGER_R,
+
+       /**
+        * The button at the left of the menu pad.
+        */
+       SELECT,
+
+       /**
+        * The button at the right of the menu pad.
+        */
+       START,
+
+       /**
+        * The button under the left stick.
+        */
+       STICK_L,
+
+       /**
+        * The button under the right stick.
+        */
+       STICK_R,
+
+       DPAD_UP,
+       DPAD_DOWN,
+       DPAD_LEFT,
+       DPAD_RIGHT,
+
+       /**
+        * The button at the center of the menu pad.
+        */
+       HOME,
+}