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-rw-r--r--widget/cocoa/nsMenuItemIconX.h70
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diff --git a/widget/cocoa/nsMenuItemIconX.h b/widget/cocoa/nsMenuItemIconX.h
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+/* -*- 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]
+ RefPtr<const mozilla::ComputedStyle> mComputedStyle;
+ mozilla::WeakPtr<nsPresContext> mPresContext;
+ NSImage* mIconImage = nil; // [strong]
+ RefPtr<mozilla::widget::IconLoader> mIconLoader;
+};
+
+#endif // nsMenuItemIconX_h_