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Retrieve some basic layout properties for nodes to make the box model somewhat useful.

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This commit is contained in:
Josh Matthews 2014-09-04 16:21:50 -04:00
parent fa57fe890b
commit fae7ce3c1d
7 changed files with 101 additions and 31 deletions
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60
components/devtools/actors/inspector.rs
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@ -5,13 +5,15 @@
/// Liberally derived from the [Firefox JS implementation](http://mxr.mozilla.org/mozilla-central/source/toolkit/devtools/server/actors/inspector.js).
use devtools_traits::{GetRootNode, GetDocumentElement, GetChildren, DevtoolScriptControlMsg};
use devtools_traits::NodeInfo;
use devtools_traits::{GetLayout, NodeInfo};
use actor::{Actor, ActorRegistry};
use protocol::JsonPacketSender;
use collections::TreeMap;
use servo_msg::constellation_msg::PipelineId;
use serialize::json;
use serialize::json::ToJson;
use std::cell::RefCell;
use std::io::TcpStream;
@ -287,6 +289,8 @@ struct PageStyleMsg {
struct PageStyleActor {
name: String,
script_chan: Sender<DevtoolScriptControlMsg>,
pipeline: PipelineId,
}
#[deriving(Encodable)]
@ -334,15 +338,31 @@ struct AppliedSheet {
ruleCount: uint,
}
#[deriving(Encodable)]
struct GetLayoutReply {
width: int,
height: int,
autoMargins: json::Json,
from: String,
}
#[deriving(Encodable)]
struct AutoMargins {
top: String,
bottom: String,
left: String,
right: String,
}
impl Actor for PageStyleActor {
fn name(&self) -> String {
self.name.clone()
}
fn handle_message(&self,
_registry: &ActorRegistry,
registry: &ActorRegistry,
msg_type: &String,
_msg: &json::Object,
msg: &json::Object,
stream: &mut TcpStream) -> bool {
match msg_type.as_slice() {
"getApplied" => {
@ -368,7 +388,37 @@ impl Actor for PageStyleActor {
}
//TODO: query script for box layout properties of node (msg.node)
//"getLayout" => {}
"getLayout" => {
let target = msg.find(&"node".to_string()).unwrap().as_string().unwrap();
let (tx, rx) = channel();
self.script_chan.send(GetLayout(self.pipeline,
registry.actor_to_script(target.to_string()),
tx));
let (width, height) = rx.recv();
let auto_margins = msg.find(&"autoMargins".to_string()).unwrap().as_boolean().unwrap();
//TODO: the remaining layout properties (margin, border, padding, position)
// as specified in getLayout in http://mxr.mozilla.org/mozilla-central/source/toolkit/devtools/server/actors/styles.js
let msg = GetLayoutReply {
width: width.round() as int,
height: height.round() as int,
autoMargins: if auto_margins {
//TODO: real values like processMargins in http://mxr.mozilla.org/mozilla-central/source/toolkit/devtools/server/actors/styles.js
let mut m = TreeMap::new();
m.insert("top".to_string(), "auto".to_string().to_json());
m.insert("bottom".to_string(), "auto".to_string().to_json());
m.insert("left".to_string(), "auto".to_string().to_json());
m.insert("right".to_string(), "auto".to_string().to_json());
json::Object(m)
} else {
json::Null
},
from: self.name(),
};
stream.write_json_packet(&msg);
true
}
_ => false,
}
@ -419,6 +469,8 @@ impl Actor for InspectorActor {
if self.pageStyle.borrow().is_none() {
let style = PageStyleActor {
name: registry.new_name("pageStyle"),
script_chan: self.script_chan.clone(),
pipeline: self.pipeline,
};
let mut pageStyle = self.pageStyle.borrow_mut();
*pageStyle = Some(style.name());