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https://github.com/mozilla/gecko-dev.git
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3f10f5ed57
The idea is to not make consumers think about whether the principal exists or not when the caller knows for sure that it does. The substantive changes are in dom/bindings, nsHTMLDocument::SetDesignMode, and around the CanUseStorage bits. Everything else is pretty mechanical.
152 lines
3.7 KiB
C++
152 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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_DataTransferItem_h
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#define mozilla_dom_DataTransferItem_h
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#include "mozilla/ErrorResult.h"
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#include "mozilla/dom/DataTransfer.h"
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#include "mozilla/dom/DOMString.h"
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#include "mozilla/dom/File.h"
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namespace mozilla {
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namespace dom {
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class FileSystemEntry;
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class FunctionStringCallback;
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class DataTransferItem final : public nsISupports
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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(DataTransferItem);
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public:
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// The spec only talks about the "file" and "string" kinds. Due to the Moz*
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// APIs, it is possible to attach any type to a DataTransferItem, meaning that
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// we can have other kinds then just FILE and STRING. These others are simply
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// marked as "other" and can only be produced throug the Moz* APIs.
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enum eKind {
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KIND_FILE,
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KIND_STRING,
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KIND_OTHER,
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};
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DataTransferItem(DataTransfer* aDataTransfer, const nsAString& aType,
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eKind aKind = KIND_OTHER)
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: mIndex(0)
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, mChromeOnly(false)
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, mKind(aKind)
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, mType(aType)
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, mDataTransfer(aDataTransfer)
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{
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MOZ_ASSERT(mDataTransfer, "Must be associated with a DataTransfer");
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}
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already_AddRefed<DataTransferItem> Clone(DataTransfer* aDataTransfer) const;
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virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
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void GetAsString(FunctionStringCallback* aCallback,
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nsIPrincipal& aSubjectPrincipal,
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ErrorResult& aRv);
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void GetKind(nsAString& aKind) const
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{
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switch (mKind) {
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case KIND_FILE:
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aKind = NS_LITERAL_STRING("file");
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return;
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case KIND_STRING:
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aKind = NS_LITERAL_STRING("string");
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return;
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default:
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aKind = NS_LITERAL_STRING("other");
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return;
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}
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}
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void GetType(nsAString& aType) const
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{
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aType = mType;
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}
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eKind Kind() const
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{
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return mKind;
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}
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already_AddRefed<File>
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GetAsFile(nsIPrincipal& aSubjectPrincipal, ErrorResult& aRv);
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already_AddRefed<FileSystemEntry>
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GetAsEntry(nsIPrincipal& aSubjectPrincipal, ErrorResult& aRv);
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DataTransfer* GetParentObject() const
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{
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return mDataTransfer;
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}
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nsIPrincipal* Principal() const
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{
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return mPrincipal;
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}
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void SetPrincipal(nsIPrincipal* aPrincipal)
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{
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mPrincipal = aPrincipal;
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}
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already_AddRefed<nsIVariant> DataNoSecurityCheck();
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already_AddRefed<nsIVariant> Data(nsIPrincipal* aPrincipal, ErrorResult& aRv);
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// Note: This can modify the mKind. Callers of this method must let the
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// relevant DataTransfer know, because its types list can change as a result.
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void SetData(nsIVariant* aData);
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uint32_t Index() const
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{
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return mIndex;
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}
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void SetIndex(uint32_t aIndex)
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{
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mIndex = aIndex;
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}
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void FillInExternalData();
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bool ChromeOnly() const
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{
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return mChromeOnly;
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}
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void SetChromeOnly(bool aChromeOnly)
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{
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mChromeOnly = aChromeOnly;
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}
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static eKind KindFromData(nsIVariant* aData);
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private:
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~DataTransferItem() {}
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already_AddRefed<File> CreateFileFromInputStream(nsIInputStream* aStream);
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// The index in the 2d mIndexedItems array
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uint32_t mIndex;
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bool mChromeOnly;
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eKind mKind;
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const nsString mType;
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nsCOMPtr<nsIVariant> mData;
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nsCOMPtr<nsIPrincipal> mPrincipal;
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RefPtr<DataTransfer> mDataTransfer;
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// File cache for nsIFile application/x-moz-file entries.
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RefPtr<File> mCachedFile;
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};
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} // namespace dom
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} // namespace mozilla
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#endif /* mozilla_dom_DataTransferItem_h */
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