1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/base/src/DOMStringList.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,106 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef mozilla_dom_DOMStringList_h
1.10 +#define mozilla_dom_DOMStringList_h
1.11 +
1.12 +#include "nsISupports.h"
1.13 +#include "nsTArray.h"
1.14 +#include "nsWrapperCache.h"
1.15 +#include "nsString.h"
1.16 +
1.17 +namespace mozilla {
1.18 +namespace dom {
1.19 +
1.20 +class DOMStringList : public nsISupports,
1.21 + public nsWrapperCache
1.22 +{
1.23 +public:
1.24 + DOMStringList()
1.25 + {
1.26 + SetIsDOMBinding();
1.27 + }
1.28 + virtual ~DOMStringList();
1.29 +
1.30 + NS_DECL_CYCLE_COLLECTING_ISUPPORTS
1.31 + NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DOMStringList)
1.32 +
1.33 + virtual JSObject* WrapObject(JSContext* aCx);
1.34 + nsISupports* GetParentObject()
1.35 + {
1.36 + return nullptr;
1.37 + }
1.38 +
1.39 + void IndexedGetter(uint32_t aIndex, bool& aFound, nsAString& aResult)
1.40 + {
1.41 + EnsureFresh();
1.42 + if (aIndex < mNames.Length()) {
1.43 + aFound = true;
1.44 + aResult = mNames[aIndex];
1.45 + } else {
1.46 + aFound = false;
1.47 + }
1.48 + }
1.49 +
1.50 + void Item(uint32_t aIndex, nsAString& aResult)
1.51 + {
1.52 + EnsureFresh();
1.53 + if (aIndex < mNames.Length()) {
1.54 + aResult = mNames[aIndex];
1.55 + } else {
1.56 + aResult.SetIsVoid(true);
1.57 + }
1.58 + }
1.59 +
1.60 + uint32_t Length()
1.61 + {
1.62 + EnsureFresh();
1.63 + return mNames.Length();
1.64 + }
1.65 +
1.66 + bool Contains(const nsAString& aString)
1.67 + {
1.68 + EnsureFresh();
1.69 + return mNames.Contains(aString);
1.70 + }
1.71 +
1.72 + bool Add(const nsAString& aName)
1.73 + {
1.74 + // XXXbz mNames should really be a fallible array; otherwise this
1.75 + // return value is meaningless.
1.76 + return mNames.AppendElement(aName) != nullptr;
1.77 + }
1.78 +
1.79 + void Clear()
1.80 + {
1.81 + mNames.Clear();
1.82 + }
1.83 +
1.84 + nsTArray<nsString>& StringArray()
1.85 + {
1.86 + return mNames;
1.87 + }
1.88 +
1.89 + void CopyList(nsTArray<nsString>& aNames)
1.90 + {
1.91 + aNames = mNames;
1.92 + }
1.93 +
1.94 +protected:
1.95 + // A method that subclasses can override to modify mNames as needed
1.96 + // before we index into it or return its length or whatnot.
1.97 + virtual void EnsureFresh()
1.98 + {
1.99 + }
1.100 +
1.101 + // XXXbz we really want this to be a fallible array, but we end up passing it
1.102 + // to consumers who declare themselves as taking and nsTArray. :(
1.103 + nsTArray<nsString> mNames;
1.104 +};
1.105 +
1.106 +} // namespace dom
1.107 +} // namespace mozilla
1.108 +
1.109 +#endif /* mozilla_dom_DOMStringList_h */
