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Diffstat (limited to 'dom/base/FormData.h')
-rw-r--r-- | dom/base/FormData.h | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/dom/base/FormData.h b/dom/base/FormData.h new file mode 100644 index 000000000..e213db164 --- /dev/null +++ b/dom/base/FormData.h @@ -0,0 +1,166 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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_FormData_h +#define mozilla_dom_FormData_h + +#include "mozilla/Attributes.h" +#include "mozilla/ErrorResult.h" +#include "mozilla/dom/BindingDeclarations.h" +#include "mozilla/dom/HTMLFormSubmission.h" +#include "mozilla/dom/File.h" +#include "mozilla/dom/FormDataBinding.h" +#include "nsIDOMFormData.h" +#include "nsIXMLHttpRequest.h" +#include "nsTArray.h" +#include "nsWrapperCache.h" + +namespace mozilla { +namespace dom { + +class HTMLFormElement; +class GlobalObject; + +class FormData final : public nsIDOMFormData, + public nsIXHRSendable, + public HTMLFormSubmission, + public nsWrapperCache +{ +private: + ~FormData() {} + + struct FormDataTuple + { + nsString name; + bool wasNullBlob; + OwningBlobOrDirectoryOrUSVString value; + }; + + // Returns the FormDataTuple to modify. This may be null, in which case + // no element with aName was found. + FormDataTuple* + RemoveAllOthersAndGetFirstFormDataTuple(const nsAString& aName); + + void SetNameValuePair(FormDataTuple* aData, + const nsAString& aName, + const nsAString& aValue, + bool aWasNullBlob = false); + + void SetNameFilePair(FormDataTuple* aData, + const nsAString& aName, + File* aFile); + + void SetNameDirectoryPair(FormDataTuple* aData, + const nsAString& aName, + Directory* aDirectory); + +public: + explicit FormData(nsISupports* aOwner = nullptr); + + NS_DECL_CYCLE_COLLECTING_ISUPPORTS + NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(FormData, + nsIDOMFormData) + + NS_DECL_NSIDOMFORMDATA + NS_DECL_NSIXHRSENDABLE + + // nsWrapperCache + virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override; + + // WebIDL + nsISupports* + GetParentObject() const + { + return mOwner; + } + + static already_AddRefed<FormData> + Constructor(const GlobalObject& aGlobal, + const Optional<NonNull<HTMLFormElement> >& aFormElement, + ErrorResult& aRv); + + void Append(const nsAString& aName, const nsAString& aValue, + ErrorResult& aRv); + + void Append(const nsAString& aName, Blob& aBlob, + const Optional<nsAString>& aFilename, + ErrorResult& aRv); + + void Append(const nsAString& aName, Directory* aDirectory); + + void Delete(const nsAString& aName); + + void Get(const nsAString& aName, Nullable<OwningBlobOrDirectoryOrUSVString>& aOutValue); + + void GetAll(const nsAString& aName, nsTArray<OwningBlobOrDirectoryOrUSVString>& aValues); + + bool Has(const nsAString& aName); + + void Set(const nsAString& aName, Blob& aBlob, + const Optional<nsAString>& aFilename, + ErrorResult& aRv); + void Set(const nsAString& aName, const nsAString& aValue, + ErrorResult& aRv); + + uint32_t GetIterableLength() const; + + const nsAString& GetKeyAtIndex(uint32_t aIndex) const; + + const OwningBlobOrDirectoryOrUSVString& GetValueAtIndex(uint32_t aIndex) const; + + // HTMLFormSubmission + virtual nsresult + GetEncodedSubmission(nsIURI* aURI, nsIInputStream** aPostDataStream) override; + + virtual nsresult AddNameValuePair(const nsAString& aName, + const nsAString& aValue) override + { + FormDataTuple* data = mFormData.AppendElement(); + SetNameValuePair(data, aName, aValue); + return NS_OK; + } + + virtual nsresult AddNameBlobOrNullPair(const nsAString& aName, + Blob* aBlob) override; + + virtual nsresult AddNameDirectoryPair(const nsAString& aName, + Directory* aDirectory) override; + + typedef bool (*FormDataEntryCallback)(const nsString& aName, + const OwningBlobOrDirectoryOrUSVString& aValue, + void* aClosure); + + uint32_t + Length() const + { + return mFormData.Length(); + } + + // Stops iteration and returns false if any invocation of callback returns + // false. Returns true otherwise. + bool + ForEach(FormDataEntryCallback aFunc, void* aClosure) + { + for (uint32_t i = 0; i < mFormData.Length(); ++i) { + FormDataTuple& tuple = mFormData[i]; + if (!aFunc(tuple.name, tuple.value, aClosure)) { + return false; + } + } + + return true; + } + +private: + nsCOMPtr<nsISupports> mOwner; + + nsTArray<FormDataTuple> mFormData; +}; + +} // dom namespace +} // mozilla namepsace + +#endif // mozilla_dom_FormData_h |