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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 mozilla_dom_DOMStringList_h
#define mozilla_dom_DOMStringList_h
#include "nsISupports.h"
#include "nsTArray.h"
#include "nsWrapperCache.h"
#include "nsString.h"
namespace mozilla {
namespace dom {
class DOMStringList : public nsISupports,
public nsWrapperCache
{
protected:
virtual ~DOMStringList();
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DOMStringList)
virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
nsISupports* GetParentObject()
{
return nullptr;
}
void IndexedGetter(uint32_t aIndex, bool& aFound, nsAString& aResult)
{
EnsureFresh();
if (aIndex < mNames.Length()) {
aFound = true;
aResult = mNames[aIndex];
} else {
aFound = false;
}
}
void Item(uint32_t aIndex, nsAString& aResult)
{
EnsureFresh();
if (aIndex < mNames.Length()) {
aResult = mNames[aIndex];
} else {
aResult.SetIsVoid(true);
}
}
uint32_t Length()
{
EnsureFresh();
return mNames.Length();
}
bool Contains(const nsAString& aString)
{
EnsureFresh();
return mNames.Contains(aString);
}
bool Add(const nsAString& aName)
{
// XXXbz mNames should really be a fallible array; otherwise this
// return value is meaningless.
return mNames.AppendElement(aName) != nullptr;
}
void Clear()
{
mNames.Clear();
}
nsTArray<nsString>& StringArray()
{
return mNames;
}
void CopyList(nsTArray<nsString>& aNames)
{
aNames = mNames;
}
protected:
// A method that subclasses can override to modify mNames as needed
// before we index into it or return its length or whatnot.
virtual void EnsureFresh()
{
}
// XXXbz we really want this to be a fallible array, but we end up passing it
// to consumers who declare themselves as taking and nsTArray. :(
nsTArray<nsString> mNames;
};
} // namespace dom
} // namespace mozilla
#endif /* mozilla_dom_DOMStringList_h */
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