Add nativeImage.createEmpty()

zcbenz · zcbenz · commit b9f6d6dffc75 · 2015-02-12T13:55:45.000+08:00
diff --git a/atom/common/api/atom_api_native_image.cc b/atom/common/api/atom_api_native_image.cc
@@ -156,6 +156,11 @@ gfx::Size NativeImage::GetSize() {
   return image_.Size();
 }
 
+// static
+mate::Handle<NativeImage> NativeImage::CreateEmpty(v8::Isolate* isolate) {
+  return mate::CreateHandle(isolate, new NativeImage);
+}
+
 // static
 mate::Handle<NativeImage> NativeImage::Create(
     v8::Isolate* isolate, const gfx::Image& image) {
@@ -203,6 +208,7 @@ namespace {
 void Initialize(v8::Handle<v8::Object> exports, v8::Handle<v8::Value> unused,
                 v8::Handle<v8::Context> context, void* priv) {
   mate::Dictionary dict(context->GetIsolate(), exports);
+  dict.SetMethod("createEmpty", &atom::api::NativeImage::CreateEmpty);
   dict.SetMethod("createFromPng", &atom::api::NativeImage::CreateFromPNG);
   dict.SetMethod("createFromJpeg", &atom::api::NativeImage::CreateFromJPEG);
   dict.SetMethod("createFromPath", &atom::api::NativeImage::CreateFromPath);
diff --git a/atom/common/api/atom_api_native_image.h b/atom/common/api/atom_api_native_image.h
@@ -23,6 +23,7 @@ namespace api {
 
 class NativeImage : public mate::Wrappable {
  public:
+  static mate::Handle<NativeImage> CreateEmpty(v8::Isolate* isolate);
   static mate::Handle<NativeImage> Create(
       v8::Isolate* isolate, const gfx::Image& image);
   static mate::Handle<NativeImage> CreateFromPNG(
diff --git a/docs/api/native-image.md b/docs/api/native-image.md
@@ -80,6 +80,10 @@ To mark an image as template image, its filename should end with the word
 * `xxxTemplate.png`
 * `xxxTemplate@2x.png`
 
+## nativeImage.createEmpty()
+
+Creates a new `NativeImage` instance that contains empty image.
+
 ## nativeImage.createFromPng(buffer)
 
 * `buffer` [Buffer][buffer]
