1 files changed, 79 insertions, 0 deletions
diff --git a/widget/windows/IconLoaderHelperWin.cpp b/widget/windows/IconLoaderHelperWin.cpp
new file mode 100644
index 0000000000..a6be500fe4
--- /dev/null
+++ b/widget/windows/IconLoaderHelperWin.cpp
@@ -0,0 +1,79 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * Retrieves and displays icons in native menu items on Windows.
+ */
+
+#include "gfxPlatform.h"
+#include "imgIContainer.h"
+#include "imgLoader.h"
+#include "imgRequestProxy.h"
+#include "mozilla/dom/Document.h"
+#include "nsContentUtils.h"
+#include "nsIContent.h"
+#include "nsNameSpaceManager.h"
+#include "nsNetUtil.h"
+#include "nsThreadUtils.h"
+#include "nsToolkit.h"
+#include "nsWindowGfx.h"
+#include "IconLoaderHelperWin.h"
+
+using namespace mozilla;
+
+using mozilla::gfx::SourceSurface;
+using mozilla::widget::IconLoader;
+using mozilla::widget::IconLoaderListenerWin;
+
+namespace mozilla::widget {
+
+NS_IMPL_CYCLE_COLLECTION(IconLoaderHelperWin, mLoadListener)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(IconLoaderHelperWin)
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(IconLoaderHelperWin)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(IconLoaderHelperWin)
+
+IconLoaderHelperWin::IconLoaderHelperWin(IconLoaderListenerWin* aListener)
+    : mLoadListener(aListener) {
+  MOZ_ASSERT(aListener);
+  MOZ_ASSERT(NS_IsMainThread());
+}
+
+IconLoaderHelperWin::~IconLoaderHelperWin() { Destroy(); }
+
+nsresult IconLoaderHelperWin::OnComplete(imgIContainer* aImage,
+                                         const nsIntRect& aRect) {
+  NS_ENSURE_ARG_POINTER(aImage);
+
+  nsresult rv = nsWindowGfx::CreateIcon(
+      aImage, false, LayoutDeviceIntPoint(),
+      nsWindowGfx::GetIconMetrics(nsWindowGfx::kRegularIcon),
+      &mNativeIconImage);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  mLoadListener->OnComplete();
+  return NS_OK;
+}
+
+HICON IconLoaderHelperWin::GetNativeIconImage() {
+  if (mNativeIconImage) {
+    return mNativeIconImage;
+  }
+  return ::LoadIcon(::GetModuleHandle(NULL), IDI_APPLICATION);
+}
+
+void IconLoaderHelperWin::Destroy() {
+  if (mNativeIconImage) {
+    ::DestroyIcon(mNativeIconImage);
+    mNativeIconImage = nullptr;
+  }
+  if (mLoadListener) {
+    mLoadListener = nullptr;
+  }
+}
+
+}  // namespace mozilla::widget