Make hasShadow work on Windows/Linux

atom/browser/native_window.cc

@@ -125,6 +125,10 @@ void NativeWindow::InitFromOptions(const mate::Dictionary& options) {
   if (options.Get(options::kMovable, &movable) && movable) {
     SetMovable(movable);
   }
+  bool has_shadow;
+  if (options.Get(options::kHasShadow, &has_shadow)) {
+    SetHasShadow(has_shadow);
+  }
   bool top;
   if (options.Get(options::kAlwaysOnTop, &top) && top) {
     SetAlwaysOnTop(true);
@@ -555,13 +559,6 @@ void NativeWindow::OnCapturePageDone(const CapturePageCallback& callback,
   callback.Run(bitmap);
 }
 
-void NativeWindow::SetHasShadow(bool has_shadow) {
-}
-
-bool NativeWindow::HasShadow() {
-  return true;
-}
-
 SkColor NativeWindow::ParseHexColor(const std::string& name) {
   SkColor result = 0xFF000000;
   unsigned value = 0;

atom/browser/native_window.h

@@ -145,8 +145,8 @@ class NativeWindow : public base::SupportsUserData,
   virtual void SetKiosk(bool kiosk) = 0;
   virtual bool IsKiosk() = 0;
   virtual void SetBackgroundColor(const std::string& color_name) = 0;
-  virtual void SetHasShadow(bool has_shadow);
-  virtual bool HasShadow();
+  virtual void SetHasShadow(bool has_shadow) = 0;
+  virtual bool HasShadow() = 0;
   virtual void SetRepresentedFilename(const std::string& filename);
   virtual std::string GetRepresentedFilename();
   virtual void SetDocumentEdited(bool edited);

atom/browser/native_window_mac.mm

@@ -449,12 +449,6 @@ NativeWindowMac::NativeWindowMac(
   if (!has_frame())
     [window_ setOpaque:NO];
 
-  bool has_shadow = true;
-  options.Get(options::kHasShadow, &has_shadow);
-  if (!has_shadow) {
-    SetHasShadow(false);
-  }
-
   // We will manage window's lifetime ourselves.
   [window_ setReleasedWhenClosed:NO];
 

atom/browser/native_window_views.cc

@@ -155,6 +155,11 @@ NativeWindowViews::NativeWindowViews(
   if (transparent())
     params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
 
+  // The given window is most likely not rectangular since it uses
+  // transparency and has no standard frame, don't show a shadow for it.
+  if (transparent() && !has_frame())
+    params.shadow_type = Widget::InitParams::SHADOW_TYPE_NONE;
+
 #if defined(OS_WIN)
   params.native_widget =
       new views::DesktopNativeWidgetAura(window_.get());
@@ -259,11 +264,6 @@ NativeWindowViews::NativeWindowViews(
     window_->FrameTypeChanged();
   }
 
-  // The given window is most likely not rectangular since it uses
-  // transparency and has no standard frame, don't show a shadow for it.
-  if (transparent() && !has_frame())
-    wm::SetShadowType(GetNativeWindow(), wm::SHADOW_TYPE_NONE);
-
   gfx::Size size = bounds.size();
   if (has_frame() &&
       options.Get(options::kUseContentSize, &use_content_size_) &&
@@ -597,6 +597,14 @@ void NativeWindowViews::SetBackgroundColor(const std::string& color_name) {
 #endif
 }
 
+void NativeWindowViews::SetHasShadow(bool has_shadow) {
+  wm::SetShadowType(GetNativeWindow(), wm::SHADOW_TYPE_NONE);
+}
+
+bool NativeWindowViews::HasShadow() {
+  return wm::GetShadowType(GetNativeWindow()) != wm::SHADOW_TYPE_NONE;
+}
+
 void NativeWindowViews::SetMenu(ui::MenuModel* menu_model) {
   if (menu_model == nullptr) {
     // Remove accelerators

atom/browser/native_window_views.h

@@ -88,6 +88,8 @@ class NativeWindowViews : public NativeWindow,
   void SetKiosk(bool kiosk) override;
   bool IsKiosk() override;
   void SetBackgroundColor(const std::string& color_name) override;
+  void SetHasShadow(bool has_shadow) override;
+  bool HasShadow() override;
   void SetMenu(ui::MenuModel* menu_model) override;
   gfx::NativeWindow GetNativeWindow() override;
   void SetOverlayIcon(const gfx::Image& overlay,