Bug 1518442 - Part 2: Implement Event-based form participation; r=sma…

…ug,edgar

For Event-based form participation specification PR:
whatwg/html#4239

Differential Revision: https://phabricator.services.mozilla.com/D43986

UltraBlame original commit: c8fbe42eba386afe9d98da72ebfbcb15b0995ed1

dom/base/FormData.cpp

@@ -80,6 +80,16 @@ FormData
 nsISupports
 *
 aOwner
+NotNull
+<
+const
+Encoding
+*
+>
+aEncoding
+Element
+*
+aOriginatingElement
 )
 :
 HTMLFormSubmission
@@ -88,15 +98,55 @@ nullptr
 EmptyString
 (
 )
-UTF_8_ENCODING
-nullptr
+aEncoding
+aOriginatingElement
 )
 mOwner
 (
 aOwner
 )
 {
 }
+FormData
+:
+:
+FormData
+(
+const
+FormData
+&
+aFormData
+)
+:
+HTMLFormSubmission
+(
+aFormData
+.
+mActionURL
+aFormData
+.
+mTarget
+aFormData
+.
+mEncoding
+aFormData
+.
+mOriginatingElement
+)
+{
+mOwner
+=
+aFormData
+.
+mOwner
+;
+mFormData
+=
+aFormData
+.
+mFormData
+;
+}
 namespace
 {
 already_AddRefed
@@ -1524,11 +1574,36 @@ Value
 (
 )
 .
-WalkFormElements
+ConstructEntryList
 (
 formData
 )
 ;
+if
+(
+NS_WARN_IF
+(
+aRv
+.
+Failed
+(
+)
+)
+)
+{
+return
+nullptr
+;
+}
+formData
+=
+formData
+-
+>
+Clone
+(
+)
+;
 }
 return
 formData
@@ -1571,9 +1646,114 @@ UTF_8_ENCODING
 nullptr
 )
 ;
+nsresult
+rv
+=
+CopySubmissionDataTo
+(
+&
+fs
+)
+;
+NS_ENSURE_SUCCESS
+(
+rv
+rv
+)
+;
+fs
+.
+GetContentType
+(
+aContentTypeWithCharset
+)
+;
+aCharset
+.
+Truncate
+(
+)
+;
+*
+aContentLength
+=
+0
+;
+NS_ADDREF
+(
+*
+aBody
+=
+fs
+.
+GetSubmissionBody
+(
+aContentLength
+)
+)
+;
+return
+NS_OK
+;
+}
+already_AddRefed
+<
+FormData
+>
+FormData
+:
+:
+Clone
+(
+)
+{
+RefPtr
+<
+FormData
+>
+formData
+=
+new
+FormData
+(
+*
+this
+)
+;
+return
+formData
+.
+forget
+(
+)
+;
+}
+nsresult
+FormData
+:
+:
+CopySubmissionDataTo
+(
+HTMLFormSubmission
+*
+aFormSubmission
+)
+const
+{
+MOZ_ASSERT
+(
+aFormSubmission
+"
+Must
+have
+FormSubmission
+!
+"
+)
+;
 for
 (
-uint32_t
+size_t
 i
 =
 0
@@ -1615,8 +1795,9 @@ IsUSVString
 )
 )
 ;
-fs
-.
+aFormSubmission
+-
+>
 AddNameBlobOrNullPair
 (
 mFormData
@@ -1644,8 +1825,9 @@ IsUSVString
 )
 )
 {
-fs
-.
+aFormSubmission
+-
+>
 AddNameValuePair
 (
 mFormData
@@ -1682,8 +1864,9 @@ IsBlob
 )
 )
 {
-fs
-.
+aFormSubmission
+-
+>
 AddNameBlobOrNullPair
 (
 mFormData
@@ -1721,8 +1904,9 @@ IsDirectory
 )
 )
 ;
-fs
-.
+aFormSubmission
+-
+>
 AddNameDirectoryPair
 (
 mFormData
@@ -1745,37 +1929,6 @@ GetAsDirectory
 ;
 }
 }
-fs
-.
-GetContentType
-(
-aContentTypeWithCharset
-)
-;
-aCharset
-.
-Truncate
-(
-)
-;
-*
-aContentLength
-=
-0
-;
-NS_ADDREF
-(
-*
-aBody
-=
-fs
-.
-GetSubmissionBody
-(
-aContentLength
-)
-)
-;
 return
 NS_OK
 ;

dom/base/FormData.h

@@ -105,6 +105,14 @@ nsWrapperCache
 {
 private
 :
+FormData
+(
+const
+FormData
+&
+aFormData
+)
+;
 ~
 FormData
 (
@@ -195,6 +203,28 @@ nsISupports
 aOwner
 =
 nullptr
+NotNull
+<
+const
+Encoding
+*
+>
+aEncoding
+=
+UTF_8_ENCODING
+Element
+*
+aOriginatingElement
+=
+nullptr
+)
+;
+already_AddRefed
+<
+FormData
+>
+Clone
+(
 )
 ;
 NS_DECL_CYCLE_COLLECTING_ISUPPORTS
@@ -621,6 +651,15 @@ aCharset
 )
 const
 ;
+nsresult
+CopySubmissionDataTo
+(
+HTMLFormSubmission
+*
+aFormSubmission
+)
+const
+;
 private
 :
 nsCOMPtr