1 files changed, 171 insertions, 0 deletions
diff --git a/dom/base/FormData.h b/dom/base/FormData.h
new file mode 100644
index 0000000000..59c275d66c
--- /dev/null
+++ b/dom/base/FormData.h
@@ -0,0 +1,171 @@
+/* -*- 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/dom/BindingDeclarations.h"
+#include "mozilla/dom/HTMLFormSubmission.h"
+#include "mozilla/dom/File.h"
+#include "mozilla/dom/FormDataBinding.h"
+#include "nsGenericHTMLElement.h"
+#include "nsTArray.h"
+#include "nsWrapperCache.h"
+
+namespace mozilla {
+class ErrorResult;
+
+namespace dom {
+
+class CustomElementFormValue;
+class HTMLFormElement;
+class GlobalObject;
+
+class FormData final : public nsISupports,
+                       public HTMLFormSubmission,
+                       public nsWrapperCache {
+ private:
+  FormData(const FormData& aFormData);
+  ~FormData() = default;
+
+  struct FormDataTuple {
+    nsString name;
+    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);
+
+  void SetNameFilePair(FormDataTuple* aData, const nsAString& aName,
+                       File* aFile);
+
+  void SetNameDirectoryPair(FormDataTuple* aData, const nsAString& aName,
+                            Directory* aDirectory);
+
+ public:
+  explicit FormData(nsISupports* aOwner = nullptr,
+                    NotNull<const Encoding*> aEncoding = UTF_8_ENCODING,
+                    Element* aSubmitter = nullptr);
+
+  already_AddRefed<FormData> Clone();
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(FormData)
+
+  // 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,
+      nsGenericHTMLElement* aSubmitter, 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 Append(const FormData& aFormData);
+
+  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,
+                                        nsCOMPtr<nsIURI>& aOutURI) override;
+
+  virtual nsresult AddNameValuePair(const nsAString& aName,
+                                    const nsAString& aValue) override {
+    nsAutoString usvName(aName);
+    nsAutoString usvValue(aValue);
+    if (!NormalizeUSVString(usvName) || !NormalizeUSVString(usvValue)) {
+      return NS_ERROR_OUT_OF_MEMORY;
+    }
+
+    FormDataTuple* data = mFormData.AppendElement();
+    SetNameValuePair(data, usvName, usvValue);
+    return NS_OK;
+  }
+
+  virtual nsresult AddNameBlobPair(const nsAString& aName,
+                                   Blob* aBlob) override;
+
+  virtual nsresult AddNameDirectoryPair(const nsAString& aName,
+                                        Directory* aDirectory) override;
+
+  uint32_t Length() const { return mFormData.Length(); }
+
+  // Stops iteration and returns false if any invocation of callback returns
+  // false. Returns true otherwise.
+  // Accepts callbacks of the form `bool(const nsString&, const
+  // OwningBlobOrDirectoryOrUSVString&)`.
+  template <typename F>
+  bool ForEach(F&& aCallback) {
+    for (uint32_t i = 0; i < mFormData.Length(); ++i) {
+      FormDataTuple& tuple = mFormData[i];
+      if (!aCallback(tuple.name, tuple.value)) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  nsresult GetSendInfo(nsIInputStream** aBody, uint64_t* aContentLength,
+                       nsACString& aContentTypeWithCharset,
+                       nsACString& aCharset) const;
+
+  nsresult CopySubmissionDataTo(HTMLFormSubmission* aFormSubmission) const;
+
+  Element* GetSubmitterElement() const { return mSubmitter.get(); }
+
+  CustomElementFormValue ConvertToCustomElementFormValue();
+
+ private:
+  nsCOMPtr<nsISupports> mOwner;
+
+  // Submitter element.
+  RefPtr<Element> mSubmitter;
+
+  nsTArray<FormDataTuple> mFormData;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // mozilla_dom_FormData_h