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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::cell::{Ref, RefCell};
use std::collections::BTreeSet;
use std::net::TcpStream;
use serde::Serialize;
use serde_json::{Map, Value};
use servo_url::ServoUrl;
use crate::actor::{Actor, ActorMessageStatus, ActorRegistry};
use crate::protocol::JsonPacketStream;
use crate::{EmptyReplyMsg, StreamId};
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
struct ThreadAttached {
from: String,
#[serde(rename = "type")]
type_: String,
actor: String,
frame: u32,
error: u32,
recording_endpoint: u32,
execution_point: u32,
popped_frames: Vec<PoppedFrameMsg>,
why: WhyMsg,
}
#[derive(Serialize)]
enum PoppedFrameMsg {}
#[derive(Serialize)]
struct WhyMsg {
#[serde(rename = "type")]
type_: String,
}
#[derive(Serialize)]
struct ThreadResumedReply {
from: String,
#[serde(rename = "type")]
type_: String,
}
#[derive(Serialize)]
struct ThreadInterruptedReply {
from: String,
#[serde(rename = "type")]
type_: String,
}
#[derive(Serialize)]
struct SourcesReply {
from: String,
sources: Vec<Source>,
}
#[derive(Eq, Ord, PartialEq, PartialOrd, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct Source {
pub actor: String,
/// URL of the script, or URL of the page for inline scripts.
pub url: String,
pub is_black_boxed: bool,
}
pub struct ThreadActor {
name: String,
source_urls: RefCell<BTreeSet<Source>>,
}
impl ThreadActor {
pub fn new(name: String) -> ThreadActor {
ThreadActor {
name,
source_urls: RefCell::new(BTreeSet::default()),
}
}
pub fn add_source(&self, url: ServoUrl) {
self.source_urls.borrow_mut().insert(Source {
actor: self.name.clone(),
url: url.to_string(),
is_black_boxed: false,
});
}
pub fn sources(&self) -> Ref<BTreeSet<Source>> {
self.source_urls.borrow()
}
}
impl Actor for ThreadActor {
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, ()> {
Ok(match msg_type {
"attach" => {
let msg = ThreadAttached {
from: self.name(),
type_: "paused".to_owned(),
actor: registry.new_name("pause"),
frame: 0,
error: 0,
recording_endpoint: 0,
execution_point: 0,
popped_frames: vec![],
why: WhyMsg {
type_: "attached".to_owned(),
},
};
let _ = stream.write_json_packet(&msg);
let _ = stream.write_json_packet(&EmptyReplyMsg { from: self.name() });
ActorMessageStatus::Processed
},
"resume" => {
let msg = ThreadResumedReply {
from: self.name(),
type_: "resumed".to_owned(),
};
let _ = stream.write_json_packet(&msg);
let _ = stream.write_json_packet(&EmptyReplyMsg { from: self.name() });
ActorMessageStatus::Processed
},
"interrupt" => {
let msg = ThreadInterruptedReply {
from: self.name(),
type_: "interrupted".to_owned(),
};
let _ = stream.write_json_packet(&msg);
ActorMessageStatus::Processed
},
"reconfigure" => {
let _ = stream.write_json_packet(&EmptyReplyMsg { from: self.name() });
ActorMessageStatus::Processed
},
// Client has attached to the thread and wants to load script sources.
// <https://firefox-source-docs.mozilla.org/devtools/backend/protocol.html#loading-script-sources>
"sources" => {
let msg = SourcesReply {
from: self.name(),
sources: vec![], // TODO: Add sources for the debugger here
};
let _ = stream.write_json_packet(&msg);
ActorMessageStatus::Processed
},
_ => ActorMessageStatus::Ignored,
})
}
}
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