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8608e328a1
This change connects the `HighlighterActor` from the devtools with the document, which will draw a blue rectangle over any highlighted dom node. https://github.com/user-attachments/assets/571b2dab-497f-4102-9e55-517cdcc040ba --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: --> - [X] `./mach build -d` does not report any errors - [X] `./mach test-tidy` does not report any errors - [X] These changes do not require tests because we don't have devtools tests Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
117 lines
3.6 KiB
Rust
117 lines
3.6 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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//! Handles highlighting selected DOM nodes in the inspector. At the moment it only replies and
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//! changes nothing on Servo's side.
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use std::net::TcpStream;
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use base::id::PipelineId;
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use devtools_traits::DevtoolScriptControlMsg;
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use ipc_channel::ipc::IpcSender;
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use serde::Serialize;
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use serde_json::{self, Map, Value};
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use crate::actor::{Actor, ActorMessageStatus, ActorRegistry};
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use crate::protocol::JsonPacketStream;
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use crate::{EmptyReplyMsg, StreamId};
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#[derive(Serialize)]
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pub struct HighlighterMsg {
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pub actor: String,
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}
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pub struct HighlighterActor {
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pub name: String,
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pub script_sender: IpcSender<DevtoolScriptControlMsg>,
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pub pipeline: PipelineId,
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}
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#[derive(Serialize)]
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struct ShowReply {
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from: String,
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value: bool,
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}
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impl Actor for HighlighterActor {
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fn name(&self) -> String {
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self.name.clone()
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}
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/// The highligher actor can handle the following messages:
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///
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/// - `show`: Enables highlighting for the selected node
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///
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/// - `hide`: Disables highlighting for the selected node
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fn handle_message(
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&self,
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registry: &ActorRegistry,
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msg_type: &str,
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msg: &Map<String, Value>,
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stream: &mut TcpStream,
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_id: StreamId,
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) -> Result<ActorMessageStatus, ()> {
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Ok(match msg_type {
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"show" => {
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let Some(node_actor) = msg.get("node") else {
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// TODO: send missing parameter error
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return Ok(ActorMessageStatus::Ignored);
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};
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let Some(node_actor_name) = node_actor.as_str() else {
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// TODO: send invalid parameter error
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return Ok(ActorMessageStatus::Ignored);
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};
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if node_actor_name.starts_with("inspector") {
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// TODO: For some reason, the client initially asks us to highlight
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// the inspector? Investigate what this is supposed to mean.
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let msg = ShowReply {
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from: self.name(),
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value: false,
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};
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let _ = stream.write_json_packet(&msg);
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return Ok(ActorMessageStatus::Processed);
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}
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self.instruct_script_thread_to_highlight_node(
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Some(node_actor_name.to_owned()),
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registry,
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);
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let msg = ShowReply {
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from: self.name(),
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value: true,
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};
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let _ = stream.write_json_packet(&msg);
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ActorMessageStatus::Processed
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},
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"hide" => {
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self.instruct_script_thread_to_highlight_node(None, registry);
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let msg = EmptyReplyMsg { from: self.name() };
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let _ = stream.write_json_packet(&msg);
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ActorMessageStatus::Processed
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},
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_ => ActorMessageStatus::Ignored,
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})
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}
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}
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impl HighlighterActor {
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fn instruct_script_thread_to_highlight_node(
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&self,
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node_actor: Option<String>,
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registry: &ActorRegistry,
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) {
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let node_id = node_actor.map(|node_actor| registry.actor_to_script(node_actor));
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self.script_sender
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.send(DevtoolScriptControlMsg::HighlightDomNode(
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self.pipeline,
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node_id,
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))
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.unwrap();
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}
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}
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