зеркало из https://github.com/mozilla/gecko-dev.git
113 строки
2.8 KiB
C++
113 строки
2.8 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_FileList_h
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#define mozilla_dom_FileList_h
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#include "mozilla/dom/BindingDeclarations.h"
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#include "mozilla/dom/UnionTypes.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsIDOMFileList.h"
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#include "nsWrapperCache.h"
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namespace mozilla {
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namespace dom {
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class BlobImpls;
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class File;
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class FileList final : public nsIDOMFileList,
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public nsWrapperCache
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{
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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(FileList)
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NS_DECL_NSIDOMFILELIST
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explicit FileList(nsISupports* aParent)
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: mParent(aParent)
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{}
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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nsISupports* GetParentObject()
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{
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return mParent;
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}
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void Append(File* aFile);
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void Append(Directory* aDirectory);
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bool Remove(uint32_t aIndex)
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{
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if (aIndex < mFilesOrDirectories.Length()) {
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mFilesOrDirectories.RemoveElementAt(aIndex);
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return true;
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}
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return false;
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}
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void Clear()
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{
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return mFilesOrDirectories.Clear();
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}
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static FileList* FromSupports(nsISupports* aSupports)
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{
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#ifdef DEBUG
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{
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nsCOMPtr<nsIDOMFileList> list_qi = do_QueryInterface(aSupports);
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// If this assertion fires the QI implementation for the object in
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// question doesn't use the nsIDOMFileList pointer as the nsISupports
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// pointer. That must be fixed, or we'll crash...
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NS_ASSERTION(list_qi == static_cast<nsIDOMFileList*>(aSupports),
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"Uh, fix QI!");
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}
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#endif
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return static_cast<FileList*>(aSupports);
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}
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const OwningFileOrDirectory& UnsafeItem(uint32_t aIndex) const
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{
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MOZ_ASSERT(aIndex < Length());
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return mFilesOrDirectories[aIndex];
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}
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void Item(uint32_t aIndex,
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Nullable<OwningFileOrDirectory>& aFileOrDirectory,
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ErrorResult& aRv) const;
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void IndexedGetter(uint32_t aIndex, bool& aFound,
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Nullable<OwningFileOrDirectory>& aFileOrDirectory,
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ErrorResult& aRv) const;
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uint32_t Length() const
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{
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return mFilesOrDirectories.Length();
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}
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void ToSequence(Sequence<OwningFileOrDirectory>& aSequence,
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ErrorResult& aRv) const;
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bool ClonableToDifferentThreadOrProcess() const;
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private:
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~FileList() {}
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nsTArray<OwningFileOrDirectory> mFilesOrDirectories;
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nsCOMPtr<nsISupports> mParent;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_FileList_h
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