1 files changed, 71 insertions, 0 deletions
diff --git a/widget/cocoa/nsMenuItemIconX.h b/widget/cocoa/nsMenuItemIconX.h
new file mode 100644
index 0000000000..c2d3442cbb
--- /dev/null
+++ b/widget/cocoa/nsMenuItemIconX.h
@@ -0,0 +1,71 @@
+/* -*- 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 Mac OS X.
+ */
+
+#ifndef nsMenuItemIconX_h_
+#define nsMenuItemIconX_h_
+
+#import <Cocoa/Cocoa.h>
+
+#include "mozilla/widget/IconLoader.h"
+#include "mozilla/WeakPtr.h"
+
+class nsIconLoaderService;
+class nsIURI;
+class nsIContent;
+class nsIPrincipal;
+class imgRequestProxy;
+class nsMenuParentX;
+class nsPresContext;
+
+namespace mozilla {
+class ComputedStyle;
+}
+
+class nsMenuItemIconX final : public mozilla::widget::IconLoader::Listener {
+ public:
+  class Listener {
+   public:
+    virtual void IconUpdated() = 0;
+  };
+
+  explicit nsMenuItemIconX(Listener* aListener);
+  ~nsMenuItemIconX();
+
+  // SetupIcon starts the icon load. Once the icon has loaded,
+  // nsMenuParentX::IconUpdated will be called. The icon image needs to be
+  // retrieved from GetIconImage(). If aContent is an icon-less menuitem,
+  // GetIconImage() will return nil. If it does have an icon, GetIconImage()
+  // will return a transparent placeholder icon during the load and the actual
+  // icon when the load is completed.
+  void SetupIcon(nsIContent* aContent);
+
+  // Implements this method for mozilla::widget::IconLoader::Listener.
+  // Called once the icon load is complete.
+  nsresult OnComplete(imgIContainer* aImage) override;
+
+  // Returns a weak reference to the icon image that is owned by this class. Can
+  // return nil.
+  NSImage* GetIconImage() const { return mIconImage; }
+
+ protected:
+  // Returns whether there should be an icon.
+  bool StartIconLoad(nsIContent* aContent);
+
+  // GetIconURI returns null if the item should not have any icon.
+  already_AddRefed<nsIURI> GetIconURI(nsIContent* aContent);
+
+  Listener* mListener;  // [weak]
+  nsIntRect mImageRegionRect;
+  RefPtr<const mozilla::ComputedStyle> mComputedStyle;
+  mozilla::WeakPtr<nsPresContext> mPresContext;
+  NSImage* mIconImage = nil;  // [strong]
+  RefPtr<mozilla::widget::IconLoader> mIconLoader;
+};
+
+#endif  // nsMenuItemIconX_h_