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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::codegen::Bindings::StorageBinding;
use dom::bindings::codegen::Bindings::StorageBinding::StorageMethods;
use dom::bindings::conversions::Castable;
use dom::bindings::error::{Error, ErrorResult};
use dom::bindings::global::{GlobalField, GlobalRef};
use dom::bindings::js::{Root, RootedReference};
use dom::bindings::refcounted::Trusted;
use dom::bindings::utils::{Reflector, reflect_dom_object};
use dom::event::{Event, EventBubbles, EventCancelable};
use dom::storageevent::StorageEvent;
use dom::urlhelper::UrlHelper;
use ipc_channel::ipc;
use net_traits::storage_task::{StorageTask, StorageTaskMsg, StorageType};
use page::IterablePage;
use script_task::{MainThreadRunnable, MainThreadScriptMsg, ScriptTask};
use std::borrow::ToOwned;
use std::sync::mpsc::channel;
use url::Url;
use util::str::DOMString;
#[dom_struct]
pub struct Storage {
reflector_: Reflector,
global: GlobalField,
storage_type: StorageType
}
impl Storage {
fn new_inherited(global: &GlobalRef, storage_type: StorageType) -> Storage {
Storage {
reflector_: Reflector::new(),
global: GlobalField::from_rooted(global),
storage_type: storage_type
}
}
pub fn new(global: &GlobalRef, storage_type: StorageType) -> Root<Storage> {
reflect_dom_object(box Storage::new_inherited(global, storage_type), *global, StorageBinding::Wrap)
}
fn get_url(&self) -> Url {
let global_root = self.global.root();
let global_ref = global_root.r();
global_ref.get_url()
}
fn get_storage_task(&self) -> StorageTask {
let global_root = self.global.root();
let global_ref = global_root.r();
global_ref.as_window().storage_task()
}
}
impl StorageMethods for Storage {
// https://html.spec.whatwg.org/multipage/#dom-storage-length
fn Length(&self) -> u32 {
let (sender, receiver) = ipc::channel().unwrap();
self.get_storage_task().send(StorageTaskMsg::Length(sender, self.get_url(), self.storage_type)).unwrap();
receiver.recv().unwrap() as u32
}
// https://html.spec.whatwg.org/multipage/#dom-storage-key
fn Key(&self, index: u32) -> Option<DOMString> {
let (sender, receiver) = ipc::channel().unwrap();
self.get_storage_task().send(StorageTaskMsg::Key(sender, self.get_url(), self.storage_type, index)).unwrap();
receiver.recv().unwrap()
}
// https://html.spec.whatwg.org/multipage/#dom-storage-getitem
fn GetItem(&self, name: DOMString) -> Option<DOMString> {
let (sender, receiver) = ipc::channel().unwrap();
let msg = StorageTaskMsg::GetItem(sender, self.get_url(), self.storage_type, name);
self.get_storage_task().send(msg).unwrap();
receiver.recv().unwrap()
}
// https://html.spec.whatwg.org/multipage/#dom-storage-setitem
fn SetItem(&self, name: DOMString, value: DOMString) -> ErrorResult {
let (sender, receiver) = ipc::channel().unwrap();
let msg = StorageTaskMsg::SetItem(sender, self.get_url(), self.storage_type, name.clone(), value.clone());
self.get_storage_task().send(msg).unwrap();
match receiver.recv().unwrap() {
Err(_) => Err(Error::QuotaExceeded),
Ok((changed, old_value)) => {
if changed {
self.broadcast_change_notification(Some(name), old_value, Some(value));
}
Ok(())
}
}
}
// https://html.spec.whatwg.org/multipage/#dom-storage-removeitem
fn RemoveItem(&self, name: DOMString) {
let (sender, receiver) = ipc::channel().unwrap();
let msg = StorageTaskMsg::RemoveItem(sender, self.get_url(), self.storage_type, name.clone());
self.get_storage_task().send(msg).unwrap();
if let Some(old_value) = receiver.recv().unwrap() {
self.broadcast_change_notification(Some(name), Some(old_value), None);
}
}
// https://html.spec.whatwg.org/multipage/#dom-storage-clear
fn Clear(&self) {
let (sender, receiver) = ipc::channel().unwrap();
self.get_storage_task().send(StorageTaskMsg::Clear(sender, self.get_url(), self.storage_type)).unwrap();
if receiver.recv().unwrap() {
self.broadcast_change_notification(None, None, None);
}
}
// https://html.spec.whatwg.org/multipage/#the-storage-interface:supported-property-names
fn SupportedPropertyNames(&self) -> Vec<DOMString> {
let (sender, receiver) = ipc::channel().unwrap();
self.get_storage_task().send(StorageTaskMsg::Keys(sender, self.get_url(), self.storage_type)).unwrap();
receiver.recv().unwrap()
}
// check-tidy: no specs after this line
fn NamedGetter(&self, name: DOMString, found: &mut bool) -> Option<DOMString> {
let item = self.GetItem(name);
*found = item.is_some();
item
}
fn NamedSetter(&self, name: DOMString, value: DOMString) -> ErrorResult {
self.SetItem(name, value)
}
fn NamedDeleter(&self, name: DOMString) {
self.RemoveItem(name);
}
}
impl Storage {
/// https://html.spec.whatwg.org/multipage/#send-a-storage-notification
fn broadcast_change_notification(&self, key: Option<DOMString>, old_value: Option<DOMString>,
new_value: Option<DOMString>) {
let global_root = self.global.root();
let global_ref = global_root.r();
let main_script_chan = global_ref.as_window().main_thread_script_chan();
let script_chan = global_ref.script_chan();
let trusted_storage = Trusted::new(global_ref.get_cx(), self,
script_chan.clone());
main_script_chan.send(MainThreadScriptMsg::MainThreadRunnableMsg(
box StorageEventRunnable::new(trusted_storage, key, old_value, new_value))).unwrap();
}
}
pub struct StorageEventRunnable {
element: Trusted<Storage>,
key: Option<DOMString>,
old_value: Option<DOMString>,
new_value: Option<DOMString>
}
impl StorageEventRunnable {
fn new(storage: Trusted<Storage>, key: Option<DOMString>, old_value: Option<DOMString>,
new_value: Option<DOMString>) -> StorageEventRunnable {
StorageEventRunnable { element: storage, key: key, old_value: old_value, new_value: new_value }
}
}
impl MainThreadRunnable for StorageEventRunnable {
fn handler(self: Box<StorageEventRunnable>, script_task: &ScriptTask) {
let this = *self;
let storage_root = this.element.root();
let storage = storage_root.r();
let global_root = storage.global.root();
let global_ref = global_root.r();
let ev_window = global_ref.as_window();
let ev_url = storage.get_url();
let storage_event = StorageEvent::new(
global_ref,
"storage".to_owned(),
EventBubbles::DoesNotBubble, EventCancelable::NotCancelable,
this.key, this.old_value, this.new_value,
ev_url.to_string(),
Some(storage)
);
let root_page = script_task.root_page();
for it_page in root_page.iter() {
let it_window_root = it_page.window();
let it_window = it_window_root.r();
assert!(UrlHelper::SameOrigin(&ev_url, &it_window.get_url()));
// TODO: Such a Document object is not necessarily fully active, but events fired on such
// objects are ignored by the event loop until the Document becomes fully active again.
if ev_window.pipeline() != it_window.pipeline() {
storage_event.upcast::<Event>().fire(it_window.upcast());
}
}
}
}
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