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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::UnionTypes::FileOrString;
use dom::bindings::codegen::UnionTypes::FileOrString::{eFile, eString};
use dom::bindings::error::{Fallible};
use dom::bindings::global::{GlobalField, GlobalRef};
use dom::bindings::inheritance::Castable;
use dom::bindings::js::{JS, Root};
use dom::bindings::reflector::{Reflector, reflect_dom_object};
use dom::blob::Blob;
use dom::file::File;
use dom::htmlformelement::HTMLFormElement;
use std::borrow::ToOwned;
use std::collections::HashMap;
use std::collections::hash_map::Entry::{Occupied, Vacant};
use util::str::DOMString;
#[derive(JSTraceable, Clone)]
#[must_root]
#[derive(HeapSizeOf)]
pub enum FormDatum {
StringData(DOMString),
FileData(JS<File>)
}
#[dom_struct]
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 FormDataMethods for 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);
}
// https://xhr.spec.whatwg.org/#dom-formdata-get
fn Get(&self, name: DOMString) -> Option<FileOrString> {
self.data.borrow()
.get(&name)
.map(|entry| match entry[0] {
FormDatum::StringData(ref s) => eString(s.clone()),
FormDatum::FileData(ref f) => eFile(f.root()),
})
}
// 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));
}
}
impl FormData {
fn get_file_from_blob(&self, value: &Blob, filename: Option<DOMString>) -> Root<File> {
let global = self.global.root();
let f = value.downcast::<File>();
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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