/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* 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/. */
class nsContentList; class nsAtom; class nsIContent; class nsINode;
namespace mozilla::dom { class Element;
} // namespace mozilla::dom
// Magic namespace id that means "match all namespaces". This is // negative so it won't collide with actual namespace constants. #define kNameSpaceID_Wildcard INT32_MIN
// This is a callback function type that can be used to implement an // arbitrary matching algorithm. aContent is the content that may // match the list, while aNamespaceID, aAtom, and aData are whatever // was passed to the list's constructor. using nsContentListMatchFunc = bool (*)(mozilla::dom::Element* aElement,
int32_t aNamespaceID, nsAtom* aAtom, void* aData);
using nsContentListDestroyFunc = void (*)(void* aData);
/** * A function that allocates the matching data for this * FuncStringContentList. Returning aString is perfectly fine; in * that case the destructor function should be a no-op.
*/ using nsFuncStringContentListDataAllocator = void* (*)(nsINode* aRootNode, const nsString* aString);
// If aMatchNameSpaceId is kNameSpaceID_Unknown, this will return a // content list which matches ASCIIToLower(aTagname) against HTML // elements in HTML documents and aTagname against everything else. // For any other value of aMatchNameSpaceId, the list will match // aTagname against all elements.
already_AddRefed<nsContentList> NS_GetContentList(nsINode* aRootNode,
int32_t aMatchNameSpaceId, const nsAString& aTagname);
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