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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
/*
* 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_