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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_blacklist::{Blacklist, uuid_is_blacklisted};
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::{ErrorResult, Fallible};
use dom::bindings::error::Error::{self, InvalidModification, Network, Security};
use dom::bindings::global::GlobalRef;
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::result_to_promise;
use dom::bluetoothremotegattcharacteristic::{BluetoothRemoteGATTCharacteristic, MAXIMUM_ATTRIBUTE_LENGTH};
use dom::promise::Promise;
use ipc_channel::ipc::{self, IpcSender};
use net_traits::bluetooth_thread::BluetoothMethodMsg;
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: GlobalRef,
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<BluetoothMethodMsg> {
let global_root = self.global();
let global_ref = global_root.r();
global_ref.as_window().bluetooth_thread()
}
fn get_instance_id(&self) -> String {
self.instance_id.clone()
}
// https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothremotegattdescriptor-readvalue
fn read_value(&self) -> Fallible<ByteString> {
if uuid_is_blacklisted(self.uuid.as_ref(), Blacklist::Reads) {
return Err(Security)
}
let (sender, receiver) = ipc::channel().unwrap();
if !self.Characteristic().Service().Device().Gatt().Connected() {
return Err(Network)
}
self.get_bluetooth_thread().send(
BluetoothMethodMsg::ReadValue(self.get_instance_id(), sender)).unwrap();
let result = receiver.recv().unwrap();
let value = match result {
Ok(val) => {
ByteString::new(val)
},
Err(error) => {
return Err(Error::from(error))
},
};
*self.value.borrow_mut() = Some(value.clone());
Ok(value)
}
// https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothremotegattdescriptor-writevalue
fn write_value(&self, value: Vec<u8>) -> ErrorResult {
if uuid_is_blacklisted(self.uuid.as_ref(), Blacklist::Writes) {
return Err(Security)
}
if value.len() > MAXIMUM_ATTRIBUTE_LENGTH {
return Err(InvalidModification)
}
if !self.Characteristic().Service().Device().Gatt().Connected() {
return Err(Network)
}
let (sender, receiver) = ipc::channel().unwrap();
self.get_bluetooth_thread().send(
BluetoothMethodMsg::WriteValue(self.get_instance_id(), value, sender)).unwrap();
let result = receiver.recv().unwrap();
match result {
Ok(_) => Ok(()),
Err(error) => {
Err(Error::from(error))
},
}
}
}
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> {
result_to_promise(self.global().r(), self.read_value())
}
#[allow(unrooted_must_root)]
// https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothremotegattdescriptor-writevalue
fn WriteValue(&self, value: Vec<u8>) -> Rc<Promise> {
result_to_promise(self.global().r(), self.write_value(value))
}
}
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