Enable creating NativeImage from file path

atom/common/api/atom_api_native_image_mac.mm

@@ -0,0 +1,42 @@
+// Copyright (c) 2015 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "atom/common/api/atom_api_native_image.h"
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/files/file_path.h"
+#include "base/mac/foundation_util.h"
+#include "base/mac/scoped_nsobject.h"
+#include "base/strings/string_util.h"
+#include "base/strings/sys_string_conversions.h"
+#include "ui/gfx/image/image.h"
+#include "ui/gfx/image/image_skia.h"
+
+namespace atom {
+
+namespace api {
+
+namespace {
+
+bool IsTemplateImage(const base::FilePath& path) {
+  return (MatchPattern(path.value(), "*Template.*") ||
+          MatchPattern(path.value(), "*Template@*x.*"));
+}
+
+}  // namespace
+
+// static
+mate::Handle<NativeImage> NativeImage::CreateFromPath(
+    v8::Isolate* isolate, const base::FilePath& path) {
+  base::scoped_nsobject<NSImage> image([[NSImage alloc]
+      initByReferencingFile:base::mac::FilePathToNSString(path)]);
+  if (IsTemplateImage(path))
+    [image setTemplate:YES];
+  return Create(isolate, gfx::Image(image.release()));
+}
+
+}  // namespace api
+
+}  // namespace atom