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/* 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/. */
#ifndef __nsMenuContainer_h__
#define __nsMenuContainer_h__
#include "mozilla/UniquePtr.h"
#include "nsTArray.h"
#include "nsMenuObject.h"
class nsIContent;
class nsNativeMenuDocListener;
// Base class for containers (menus and menubars)
class nsMenuContainer : public nsMenuObject {
public:
typedef nsTArray<mozilla::UniquePtr<nsMenuObject> > ChildTArray;
// Determine if this container is being displayed on screen. Must be
// implemented by subclasses. Must return true if the container is
// in the fully open state, or false otherwise
virtual bool IsBeingDisplayed() const = 0;
// Determine if this container will be rebuilt the next time it opens.
// Returns false by default but can be overridden by subclasses
virtual bool NeedsRebuild() const;
// Return the first previous sibling that is of a type supported by the
// menu system
static nsIContent* GetPreviousSupportedSibling(nsIContent* aContent);
static const ChildTArray::index_type NoIndex;
protected:
nsMenuContainer(nsMenuContainer* aParent, nsIContent* aContent);
nsMenuContainer(nsNativeMenuDocListener* aListener, nsIContent* aContent);
// Create a new child element for the specified content node
mozilla::UniquePtr<nsMenuObject> CreateChild(nsIContent* aContent);
// Return the index of the child for the specified content node
size_t IndexOf(nsIContent* aChild) const;
size_t ChildCount() const { return mChildren.Length(); }
nsMenuObject* ChildAt(size_t aIndex) const { return mChildren[aIndex].get(); }
void RemoveChildAt(size_t aIndex, bool aUpdateNative = true);
// Remove the child that owns the specified content node
void RemoveChild(nsIContent* aChild, bool aUpdateNative = true);
// Insert a new child after the child that owns the specified content node
void InsertChildAfter(mozilla::UniquePtr<nsMenuObject> aChild,
nsIContent* aPrevSibling,
bool aUpdateNative = true);
void AppendChild(mozilla::UniquePtr<nsMenuObject> aChild,
bool aUpdateNative = true);
private:
ChildTArray mChildren;
};
#endif /* __nsMenuContainer_h__ */
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