mirror of
https://github.com/classilla/tenfourfox.git
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68 lines
2.8 KiB
C
68 lines
2.8 KiB
C
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsContentListDeclarations_h
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#define nsContentListDeclarations_h
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#include <stdint.h>
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#include "nsCOMPtr.h"
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class nsContentList;
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class nsIAtom;
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class nsIContent;
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class nsINode;
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// Can't use nsStringFwd.h because that's internal-API-only.
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class nsString;
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class nsAString;
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// Magic namespace id that means "match all namespaces". This is
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// negative so it won't collide with actual namespace constants.
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#define kNameSpaceID_Wildcard INT32_MIN
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// This is a callback function type that can be used to implement an
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// arbitrary matching algorithm. aContent is the content that may
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// match the list, while aNamespaceID, aAtom, and aData are whatever
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// was passed to the list's constructor.
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typedef bool (*nsContentListMatchFunc)(nsIContent* aContent,
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int32_t aNamespaceID,
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nsIAtom* aAtom,
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void* aData);
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typedef void (*nsContentListDestroyFunc)(void* aData);
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/**
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* A function that allocates the matching data for this
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* FuncStringContentList. Returning aString is perfectly fine; in
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* that case the destructor function should be a no-op.
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*/
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typedef void* (*nsFuncStringContentListDataAllocator)(nsINode* aRootNode,
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const nsString* aString);
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// If aMatchNameSpaceId is kNameSpaceID_Unknown, this will return a
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// content list which matches ASCIIToLower(aTagname) against HTML
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// elements in HTML documents and aTagname against everything else.
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// For any other value of aMatchNameSpaceId, the list will match
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// aTagname against all elements.
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already_AddRefed<nsContentList>
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NS_GetContentList(nsINode* aRootNode,
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int32_t aMatchNameSpaceId,
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const nsAString& aTagname);
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already_AddRefed<nsContentList>
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NS_GetFuncStringNodeList(nsINode* aRootNode,
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nsContentListMatchFunc aFunc,
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nsContentListDestroyFunc aDestroyFunc,
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nsFuncStringContentListDataAllocator aDataAllocator,
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const nsAString& aString);
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already_AddRefed<nsContentList>
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NS_GetFuncStringHTMLCollection(nsINode* aRootNode,
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nsContentListMatchFunc aFunc,
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nsContentListDestroyFunc aDestroyFunc,
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nsFuncStringContentListDataAllocator aDataAllocator,
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const nsAString& aString);
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#endif // nsContentListDeclarations_h
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