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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 bluetooth_traits::{BluetoothRequest, BluetoothResponse};
use bluetooth_traits::blocklist::{Blocklist, uuid_is_blocklisted};
use dom::bindings::cell::DOMRefCell;
use dom::bindings::codegen::Bindings::BluetoothDeviceBinding::BluetoothDeviceMethods;
use dom::bindings::codegen::Bindings::BluetoothRemoteGATTCharacteristicBinding::
BluetoothRemoteGATTCharacteristicMethods;
use dom::bindings::codegen::Bindings::BluetoothRemoteGATTDescriptorBinding;
use dom::bindings::codegen::Bindings::BluetoothRemoteGATTDescriptorBinding::BluetoothRemoteGATTDescriptorMethods;
use dom::bindings::codegen::Bindings::BluetoothRemoteGATTServerBinding::BluetoothRemoteGATTServerMethods;
use dom::bindings::codegen::Bindings::BluetoothRemoteGATTServiceBinding::BluetoothRemoteGATTServiceMethods;
use dom::bindings::error::Error::{self, InvalidModification, Network, Security};
use dom::bindings::js::{JS, MutHeap, Root};
use dom::bindings::reflector::{Reflectable, Reflector, reflect_dom_object};
use dom::bindings::str::{ByteString, DOMString};
use dom::bluetooth::{AsyncBluetoothListener, response_async};
use dom::bluetoothremotegattcharacteristic::{BluetoothRemoteGATTCharacteristic, MAXIMUM_ATTRIBUTE_LENGTH};
use dom::globalscope::GlobalScope;
use dom::promise::Promise;
use ipc_channel::ipc::IpcSender;
use js::jsapi::JSContext;
use std::rc::Rc;
// http://webbluetoothcg.github.io/web-bluetooth/#bluetoothremotegattdescriptor
#[dom_struct]
pub struct BluetoothRemoteGATTDescriptor {
reflector_: Reflector,
characteristic: MutHeap<JS<BluetoothRemoteGATTCharacteristic>>,
uuid: DOMString,
value: DOMRefCell<Option<ByteString>>,
instance_id: String,
}
impl BluetoothRemoteGATTDescriptor {
pub fn new_inherited(characteristic: &BluetoothRemoteGATTCharacteristic,
uuid: DOMString,
instance_id: String)
-> BluetoothRemoteGATTDescriptor {
BluetoothRemoteGATTDescriptor {
reflector_: Reflector::new(),
characteristic: MutHeap::new(characteristic),
uuid: uuid,
value: DOMRefCell::new(None),
instance_id: instance_id,
}
}
pub fn new(global: &GlobalScope,
characteristic: &BluetoothRemoteGATTCharacteristic,
uuid: DOMString,
instanceID: String)
-> Root<BluetoothRemoteGATTDescriptor>{
reflect_dom_object(box BluetoothRemoteGATTDescriptor::new_inherited(characteristic,
uuid,
instanceID),
global,
BluetoothRemoteGATTDescriptorBinding::Wrap)
}
fn get_bluetooth_thread(&self) -> IpcSender<BluetoothRequest> {
self.global().as_window().bluetooth_thread()
}
fn get_instance_id(&self) -> String {
self.instance_id.clone()
}
}
impl BluetoothRemoteGATTDescriptorMethods for BluetoothRemoteGATTDescriptor {
// https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothremotegattdescriptor-characteristic
fn Characteristic(&self) -> Root<BluetoothRemoteGATTCharacteristic> {
self.characteristic.get()
}
// https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothremotegattdescriptor-uuid
fn Uuid(&self) -> DOMString {
self.uuid.clone()
}
// https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothremotegattdescriptor-value
fn GetValue(&self) -> Option<ByteString> {
self.value.borrow().clone()
}
#[allow(unrooted_must_root)]
// https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothremotegattdescriptor-readvalue
fn ReadValue(&self) -> Rc<Promise> {
let p = Promise::new(&self.global());
let p_cx = p.global().get_cx();
if uuid_is_blocklisted(self.uuid.as_ref(), Blocklist::Reads) {
p.reject_error(p_cx, Security);
return p;
}
if !self.Characteristic().Service().Device().Gatt().Connected() {
p.reject_error(p_cx, Network);
return p;
}
let sender = response_async(&p, self);
self.get_bluetooth_thread().send(
BluetoothRequest::ReadValue(self.get_instance_id(), sender)).unwrap();
return p;
}
#[allow(unrooted_must_root)]
// https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothremotegattdescriptor-writevalue
fn WriteValue(&self, value: Vec<u8>) -> Rc<Promise> {
let p = Promise::new(&self.global());
let p_cx = p.global().get_cx();
if uuid_is_blocklisted(self.uuid.as_ref(), Blocklist::Writes) {
p.reject_error(p_cx, Security);
return p;
}
if value.len() > MAXIMUM_ATTRIBUTE_LENGTH {
p.reject_error(p_cx, InvalidModification);
return p;
}
if !self.Characteristic().Service().Device().Gatt().Connected() {
p.reject_error(p_cx, Network);
return p;
}
let sender = response_async(&p, self);
self.get_bluetooth_thread().send(
BluetoothRequest::WriteValue(self.get_instance_id(), value, sender)).unwrap();
return p;
}
}
impl AsyncBluetoothListener for BluetoothRemoteGATTDescriptor {
fn handle_response(&self, response: BluetoothResponse, promise_cx: *mut JSContext, promise: &Rc<Promise>) {
match response {
BluetoothResponse::ReadValue(result) => {
let value = ByteString::new(result);
*self.value.borrow_mut() = Some(value.clone());
promise.resolve_native(promise_cx, &value);
},
BluetoothResponse::WriteValue(result) => {
let value = ByteString::new(result);
*self.value.borrow_mut() = Some(value.clone());
promise.resolve_native(promise_cx, &value);
},
_ => promise.reject_error(promise_cx, Error::Type("Something went wrong...".to_owned())),
}
}
}
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