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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 https://mozilla.org/MPL/2.0/. */
use std::net::TcpStream;
use serde::Serialize;
use serde_json::{Map, Value};
use servo_config::pref_util::PrefValue;
use servo_config::prefs::pref_map;
use crate::actor::{Actor, ActorMessageStatus, ActorRegistry};
use crate::protocol::JsonPacketStream;
use crate::StreamId;
pub struct PreferenceActor {
name: String,
}
impl PreferenceActor {
pub fn new(name: String) -> Self {
Self { name }
}
}
impl Actor for PreferenceActor {
fn name(&self) -> String {
self.name.clone()
}
fn handle_message(
&self,
_registry: &ActorRegistry,
msg_type: &str,
_msg: &Map<String, Value>,
stream: &mut TcpStream,
_id: StreamId,
) -> Result<ActorMessageStatus, ()> {
let pref_value = pref_map().get(msg_type);
Ok(match pref_value {
PrefValue::Float(value) => {
let reply = FloatReply {
from: self.name(),
value: value,
};
let _ = stream.write_json_packet(&reply);
ActorMessageStatus::Processed
},
PrefValue::Int(value) => {
let reply = IntReply {
from: self.name(),
value: value,
};
let _ = stream.write_json_packet(&reply);
ActorMessageStatus::Processed
},
PrefValue::Str(value) => {
let reply = CharReply {
from: self.name(),
value: value,
};
let _ = stream.write_json_packet(&reply);
ActorMessageStatus::Processed
},
PrefValue::Bool(value) => {
let reply = BoolReply {
from: self.name(),
value: value,
};
let _ = stream.write_json_packet(&reply);
ActorMessageStatus::Processed
},
PrefValue::Missing => handle_missing_preference(self.name(), msg_type, stream),
})
}
}
// if the preferences are missing from pref_map then we return a
// fake preference response based on msg_type.
fn handle_missing_preference(
name: String,
msg_type: &str,
stream: &mut TcpStream,
) -> ActorMessageStatus {
match msg_type {
"getBoolPref" => {
let reply = BoolReply {
from: name,
value: false,
};
let _ = stream.write_json_packet(&reply);
ActorMessageStatus::Processed
},
"getCharPref" => {
let reply = CharReply {
from: name,
value: "".to_owned(),
};
let _ = stream.write_json_packet(&reply);
ActorMessageStatus::Processed
},
"getIntPref" => {
let reply = IntReply {
from: name,
value: 0,
};
let _ = stream.write_json_packet(&reply);
ActorMessageStatus::Processed
},
_ => ActorMessageStatus::Ignored,
}
}
#[derive(Serialize)]
struct BoolReply {
from: String,
value: bool,
}
#[derive(Serialize)]
struct CharReply {
from: String,
value: String,
}
#[derive(Serialize)]
struct IntReply {
from: String,
value: i64,
}
#[derive(Serialize)]
struct FloatReply {
from: String,
value: f64,
}
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