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/* 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/. */
use dom::bindings::cell::DOMRefCell;
use dom::bindings::codegen::Bindings::FormDataBinding;
use dom::bindings::codegen::Bindings::FormDataBinding::FormDataMethods;
use dom::bindings::codegen::InheritTypes::FileCast;
use dom::bindings::codegen::UnionTypes::FileOrString;
use dom::bindings::codegen::UnionTypes::FileOrString::{eFile, eString};
use dom::bindings::error::{Fallible};
use dom::bindings::global::{GlobalRef, GlobalField};
use dom::bindings::js::{JS, Root};
use dom::bindings::utils::{Reflector, reflect_dom_object};
use dom::blob::Blob;
use dom::file::File;
use dom::htmlformelement::HTMLFormElement;
use util::str::DOMString;
use std::borrow::ToOwned;
use std::collections::HashMap;
use std::collections::hash_map::Entry::{Occupied, Vacant};
#[derive(JSTraceable, Clone)]
#[must_root]
#[derive(HeapSizeOf)]
pub enum FormDatum {
StringData(DOMString),
FileData(JS<File>)
}
#[dom_struct]
#[derive(HeapSizeOf)]
pub struct FormData {
reflector_: Reflector,
data: DOMRefCell<HashMap<DOMString, Vec<FormDatum>>>,
global: GlobalField,
form: Option<JS<HTMLFormElement>>
}
impl FormData {
fn new_inherited(form: Option<&HTMLFormElement>, global: GlobalRef) -> FormData {
FormData {
reflector_: Reflector::new(),
data: DOMRefCell::new(HashMap::new()),
global: GlobalField::from_rooted(&global),
form: form.map(|f| JS::from_ref(f)),
}
}
pub fn new(form: Option<&HTMLFormElement>, global: GlobalRef) -> Root<FormData> {
reflect_dom_object(box FormData::new_inherited(form, global),
global, FormDataBinding::Wrap)
}
pub fn Constructor(global: GlobalRef, form: Option<&HTMLFormElement>) -> Fallible<Root<FormData>> {
Ok(FormData::new(form, global))
}
}
impl<'a> FormDataMethods for &'a FormData {
#[allow(unrooted_must_root)]
// https://xhr.spec.whatwg.org/#dom-formdata-append
fn Append(self, name: DOMString, value: &Blob, filename: Option<DOMString>) {
let file = FormDatum::FileData(JS::from_rooted(&self.get_file_from_blob(value, filename)));
let mut data = self.data.borrow_mut();
match data.entry(name) {
Occupied(entry) => entry.into_mut().push(file),
Vacant(entry) => {
entry.insert(vec!(file));
}
}
}
// https://xhr.spec.whatwg.org/#dom-formdata-append
fn Append_(self, name: DOMString, value: DOMString) {
let mut data = self.data.borrow_mut();
match data.entry(name) {
Occupied(entry) => entry.into_mut().push(FormDatum::StringData(value)),
Vacant (entry) => { entry.insert(vec!(FormDatum::StringData(value))); },
}
}
// https://xhr.spec.whatwg.org/#dom-formdata-delete
fn Delete(self, name: DOMString) {
self.data.borrow_mut().remove(&name);
}
#[allow(unsafe_code)]
// https://xhr.spec.whatwg.org/#dom-formdata-get
fn Get(self, name: DOMString) -> Option<FileOrString> {
// FIXME(https://github.com/rust-lang/rust/issues/23338)
let data = self.data.borrow();
if data.contains_key(&name) {
match data[&name][0].clone() {
FormDatum::StringData(ref s) => Some(eString(s.clone())),
FormDatum::FileData(ref f) => {
Some(eFile(f.root()))
}
}
} else {
None
}
}
// https://xhr.spec.whatwg.org/#dom-formdata-has
fn Has(self, name: DOMString) -> bool {
self.data.borrow().contains_key(&name)
}
// https://xhr.spec.whatwg.org/#dom-formdata-set
fn Set_(self, name: DOMString, value: DOMString) {
self.data.borrow_mut().insert(name, vec!(FormDatum::StringData(value)));
}
#[allow(unrooted_must_root)]
// https://xhr.spec.whatwg.org/#dom-formdata-set
fn Set(self, name: DOMString, value: &Blob, filename: Option<DOMString>) {
let file = FormDatum::FileData(JS::from_rooted(&self.get_file_from_blob(value, filename)));
self.data.borrow_mut().insert(name, vec!(file));
}
}
trait PrivateFormDataHelpers{
fn get_file_from_blob(self, value: &Blob, filename: Option<DOMString>) -> Root<File>;
}
impl<'a> PrivateFormDataHelpers for &'a FormData {
fn get_file_from_blob(self, value: &Blob, filename: Option<DOMString>) -> Root<File> {
let global = self.global.root();
let f: Option<&File> = FileCast::to_ref(value);
let name = filename.unwrap_or(f.map(|inner| inner.name().clone()).unwrap_or("blob".to_owned()));
File::new(global.r(), value, name)
}
}
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