forked from mirrors/gecko-dev
265e672179
# ignore-this-changeset --HG-- extra : amend_source : 4d301d3b0b8711c4692392aa76088ba7fd7d1022
84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
/* -*- 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 mozilla_dom_DOMStringList_h
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#define mozilla_dom_DOMStringList_h
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#include "nsISupports.h"
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#include "nsTArray.h"
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#include "nsWrapperCache.h"
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#include "nsString.h"
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namespace mozilla {
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namespace dom {
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class DOMStringList : public nsISupports, public nsWrapperCache {
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protected:
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virtual ~DOMStringList();
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DOMStringList)
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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nsISupports* GetParentObject() { return nullptr; }
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void IndexedGetter(uint32_t aIndex, bool& aFound, nsAString& aResult) {
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EnsureFresh();
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if (aIndex < mNames.Length()) {
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aFound = true;
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aResult = mNames[aIndex];
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} else {
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aFound = false;
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}
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}
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void Item(uint32_t aIndex, nsAString& aResult) {
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EnsureFresh();
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if (aIndex < mNames.Length()) {
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aResult = mNames[aIndex];
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} else {
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aResult.SetIsVoid(true);
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}
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}
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uint32_t Length() {
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EnsureFresh();
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return mNames.Length();
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}
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bool Contains(const nsAString& aString) {
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EnsureFresh();
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return mNames.Contains(aString);
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}
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bool Add(const nsAString& aName) {
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// XXXbz mNames should really be a fallible array; otherwise this
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// return value is meaningless.
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return mNames.AppendElement(aName) != nullptr;
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}
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void Clear() { mNames.Clear(); }
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nsTArray<nsString>& StringArray() { return mNames; }
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void CopyList(nsTArray<nsString>& aNames) { aNames = mNames; }
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protected:
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// A method that subclasses can override to modify mNames as needed
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// before we index into it or return its length or whatnot.
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virtual void EnsureFresh() {}
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// XXXbz we really want this to be a fallible array, but we end up passing it
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// to consumers who declare themselves as taking and nsTArray. :(
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nsTArray<nsString> mNames;
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};
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} // namespace dom
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} // namespace mozilla
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#endif /* mozilla_dom_DOMStringList_h */
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