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65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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 nsTemplateMap_h__
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#define nsTemplateMap_h__
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#include "PLDHashTable.h"
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#include "nsXULElement.h"
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class nsTemplateMap {
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protected:
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struct Entry : public PLDHashEntryHdr {
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nsIContent* mContent;
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nsIContent* mTemplate;
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};
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PLDHashTable mTable;
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public:
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nsTemplateMap() : mTable(PLDHashTable::StubOps(), sizeof(Entry)) { }
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~nsTemplateMap() { }
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void
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Put(nsIContent* aContent, nsIContent* aTemplate) {
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NS_ASSERTION(!mTable.Search(aContent), "aContent already in map");
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auto entry = static_cast<Entry*>(mTable.Add(aContent, fallible));
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if (entry) {
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entry->mContent = aContent;
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entry->mTemplate = aTemplate;
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}
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}
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void
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Remove(nsIContent* aContent) {
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mTable.Remove(aContent);
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for (nsIContent* child = aContent->GetFirstChild();
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child;
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child = child->GetNextSibling()) {
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Remove(child);
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}
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}
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void
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GetTemplateFor(nsIContent* aContent, nsIContent** aResult) {
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auto entry = static_cast<Entry*>(mTable.Search(aContent));
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if (entry)
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NS_IF_ADDREF(*aResult = entry->mTemplate);
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else
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*aResult = nullptr;
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}
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void
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Clear() { mTable.Clear(); }
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};
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#endif // nsTemplateMap_h__
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