mash: Port ash_sysui ShelfDelegateMus impl to mojo:ash.

ash/public/interfaces/shelf_enum_traits.h

Index: ash/public/interfaces/shelf_enum_traits.h
diff --git a/ash/public/interfaces/shelf_enum_traits.h b/ash/public/interfaces/shelf_enum_traits.h
new file mode 100644
index 0000000000000000000000000000000000000000..4d5d1cd9b475f79055c8c8158f396c9404834bcc
--- /dev/null
+++ b/ash/public/interfaces/shelf_enum_traits.h
@@ -0,0 +1,88 @@
+// Copyright 2016 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.
+
+#ifndef ASH_PUBLIC_INTERFACES_SHELF_ENUM_TRAITS_H_
+#define ASH_PUBLIC_INTERFACES_SHELF_ENUM_TRAITS_H_
+
+#include "ash/common/shelf/shelf_types.h"
+#include "ash/public/interfaces/shelf.mojom.h"
+
+namespace mojo {
+
+template <>
+struct EnumTraits<ash::mojom::ShelfAlignment, ash::ShelfAlignment> {
+  static ash::mojom::ShelfAlignment ToMojom(ash::ShelfAlignment input) {
+    switch (input) {
+      case ash::SHELF_ALIGNMENT_BOTTOM:
+        return ash::mojom::ShelfAlignment::BOTTOM;
+      case ash::SHELF_ALIGNMENT_LEFT:
+        return ash::mojom::ShelfAlignment::LEFT;
+      case ash::SHELF_ALIGNMENT_RIGHT:
+        return ash::mojom::ShelfAlignment::RIGHT;
+      case ash::SHELF_ALIGNMENT_BOTTOM_LOCKED:
+        return ash::mojom::ShelfAlignment::BOTTOM_LOCKED;
+    }
+    NOTREACHED();
+    return ash::mojom::ShelfAlignment::BOTTOM;
+  }
+
+  static bool FromMojom(ash::mojom::ShelfAlignment input,
+                        ash::ShelfAlignment* out) {
+    switch (input) {
+      case ash::mojom::ShelfAlignment::BOTTOM:
+        *out = ash::SHELF_ALIGNMENT_BOTTOM;
+        return true;
+      case ash::mojom::ShelfAlignment::LEFT:
+        *out = ash::SHELF_ALIGNMENT_LEFT;
+        return true;
+      case ash::mojom::ShelfAlignment::RIGHT:
+        *out = ash::SHELF_ALIGNMENT_RIGHT;
+        return true;
+      case ash::mojom::ShelfAlignment::BOTTOM_LOCKED:
+        *out = ash::SHELF_ALIGNMENT_BOTTOM_LOCKED;
+        return true;
+    }
+    NOTREACHED();
+    return false;
+  }
+};
+
+template <>
+struct EnumTraits<ash::mojom::ShelfAutoHideBehavior,
+                  ash::ShelfAutoHideBehavior> {
+  static ash::mojom::ShelfAutoHideBehavior ToMojom(
+      ash::ShelfAutoHideBehavior input) {
+    switch (input) {
+      case ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS:
+        return ash::mojom::ShelfAutoHideBehavior::ALWAYS;
+      case ash::SHELF_AUTO_HIDE_BEHAVIOR_NEVER:
+        return ash::mojom::ShelfAutoHideBehavior::NEVER;
+      case ash::SHELF_AUTO_HIDE_ALWAYS_HIDDEN:
+        return ash::mojom::ShelfAutoHideBehavior::HIDDEN;
+    }
+    NOTREACHED();
+    return ash::mojom::ShelfAutoHideBehavior::NEVER;
+  }
+
+  static bool FromMojom(ash::mojom::ShelfAutoHideBehavior input,
+                        ash::ShelfAutoHideBehavior* out) {
+    switch (input) {
+      case ash::mojom::ShelfAutoHideBehavior::ALWAYS:
+        *out = ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS;
+        return true;
+      case ash::mojom::ShelfAutoHideBehavior::NEVER:
+        *out = ash::SHELF_AUTO_HIDE_BEHAVIOR_NEVER;
+        return true;
+      case ash::mojom::ShelfAutoHideBehavior::HIDDEN:
+        *out = ash::SHELF_AUTO_HIDE_ALWAYS_HIDDEN;
+        return true;
+    }
+    NOTREACHED();
+    return false;
+  }
+};
+
+}  // namespace mojo
+
+#endif  // ASH_PUBLIC_INTERFACES_SHELF_ENUM_TRAITS_H_