Write mojom and StructTraits for DisplaySnapshot.

ui/display/mojo/display_constants_struct_traits.cc

+// Copyright 2017 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.
+
+#include "ui/display/mojo/display_constants_struct_traits.h"
+
+namespace mojo {
+
+display::mojom::DisplayConnectionType EnumTraits<

[rjkroege, 2017/02/17 03:03:51]

non-actionable aside: surely the mojo will provide a better way to deal with
this someday.

[thanhph1, 2017/02/21 16:52:17]

That will be nice.

+    display::mojom::DisplayConnectionType,
+    display::DisplayConnectionType>::ToMojom(display::DisplayConnectionType
+                                                 type) {
+  switch (type) {
+    case display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_NONE:
+      return display::mojom::DisplayConnectionType::
+          DISPLAY_CONNECTION_TYPE_NONE;
+
+    case display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_UNKNOWN:
+      return display::mojom::DisplayConnectionType::
+          DISPLAY_CONNECTION_TYPE_UNKNOWN;
+
+    case display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_INTERNAL:
+      return display::mojom::DisplayConnectionType::
+          DISPLAY_CONNECTION_TYPE_INTERNAL;
+
+    case display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_VGA:
+      return display::mojom::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_VGA;
+
+    case display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_HDMI:
+      return display::mojom::DisplayConnectionType::
+          DISPLAY_CONNECTION_TYPE_HDMI;
+
+    case display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_DVI:
+      return display::mojom::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_DVI;
+
+    case display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_DISPLAYPORT:
+      return display::mojom::DisplayConnectionType::
+          DISPLAY_CONNECTION_TYPE_DISPLAYPORT;
+
+    case display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_NETWORK:
+      return display::mojom::DisplayConnectionType::
+          DISPLAY_CONNECTION_TYPE_NETWORK;
+
+    case display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_VIRTUAL:
+      return display::mojom::DisplayConnectionType::
+          DISPLAY_CONNECTION_TYPE_VIRTUAL;
+  }
+  NOTREACHED();
+  return display::mojom::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_NONE;
+}
+
+bool EnumTraits<display::mojom::DisplayConnectionType,
+                display::DisplayConnectionType>::
+    FromMojom(display::mojom::DisplayConnectionType type,
+              display::DisplayConnectionType* out) {
+  switch (type) {
+    case display::mojom::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_NONE:
+      *out = display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_NONE;
+      return true;
+
+    case display::mojom::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_UNKNOWN:
+      *out = display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_UNKNOWN;
+      return true;
+
+    case display::mojom::DisplayConnectionType::
+        DISPLAY_CONNECTION_TYPE_INTERNAL:
+      *out = display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_INTERNAL;
+      return true;
+
+    case display::mojom::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_VGA:
+      *out = display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_VGA;
+      return true;
+
+    case display::mojom::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_HDMI:
+      *out = display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_HDMI;
+      return true;
+
+    case display::mojom::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_DVI:
+      *out = display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_DVI;
+      return true;
+
+    case display::mojom::DisplayConnectionType::
+        DISPLAY_CONNECTION_TYPE_DISPLAYPORT:
+      *out =
+          display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_DISPLAYPORT;
+      return true;
+
+    case display::mojom::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_NETWORK:
+      *out = display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_NETWORK;
+      return true;
+
+    case display::mojom::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_VIRTUAL:
+      *out = display::DisplayConnectionType::DISPLAY_CONNECTION_TYPE_VIRTUAL;
+      return true;
+  }
+  return false;
+}
+
+}  // namespace mojo