gecko-dev/servo/components/script/devtools.rs

246 строки
10 KiB
Rust

/* 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 devtools_traits::TimelineMarkerType;
use devtools_traits::{AutoMargins, CONSOLE_API, CachedConsoleMessage, CachedConsoleMessageTypes};
use devtools_traits::{ComputedNodeLayout, ConsoleAPI, PageError, ScriptToDevtoolsControlMsg};
use devtools_traits::{EvaluateJSReply, Modification, NodeInfo, PAGE_ERROR, TimelineMarker};
use dom::bindings::codegen::Bindings::CSSStyleDeclarationBinding::CSSStyleDeclarationMethods;
use dom::bindings::codegen::Bindings::DOMRectBinding::DOMRectMethods;
use dom::bindings::codegen::Bindings::DocumentBinding::DocumentMethods;
use dom::bindings::codegen::Bindings::ElementBinding::ElementMethods;
use dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
use dom::bindings::conversions::{FromJSValConvertible, jsstring_to_str};
use dom::bindings::global::GlobalRef;
use dom::bindings::inheritance::Castable;
use dom::bindings::js::Root;
use dom::element::Element;
use dom::node::Node;
use dom::window::Window;
use ipc_channel::ipc::IpcSender;
use js::jsapi::{ObjectClassName, RootedObject, RootedValue};
use js::jsval::UndefinedValue;
use msg::constellation_msg::PipelineId;
use page::{IterablePage, Page};
use script_thread::get_page;
use std::ffi::CStr;
use std::rc::Rc;
use std::str;
use style::properties::longhands::{margin_top, margin_right, margin_bottom, margin_left};
use util::str::DOMString;
use uuid::Uuid;
#[allow(unsafe_code)]
pub fn handle_evaluate_js(global: &GlobalRef, eval: String, reply: IpcSender<EvaluateJSReply>) {
// global.get_cx() returns a valid `JSContext` pointer, so this is safe.
let result = unsafe {
let cx = global.get_cx();
let mut rval = RootedValue::new(cx, UndefinedValue());
global.evaluate_js_on_global_with_result(&eval, rval.handle_mut());
if rval.ptr.is_undefined() {
EvaluateJSReply::VoidValue
} else if rval.ptr.is_boolean() {
EvaluateJSReply::BooleanValue(rval.ptr.to_boolean())
} else if rval.ptr.is_double() || rval.ptr.is_int32() {
EvaluateJSReply::NumberValue(FromJSValConvertible::from_jsval(cx, rval.handle(), ())
.unwrap())
} else if rval.ptr.is_string() {
EvaluateJSReply::StringValue(String::from(jsstring_to_str(cx, rval.ptr.to_string())))
} else if rval.ptr.is_null() {
EvaluateJSReply::NullValue
} else {
assert!(rval.ptr.is_object());
let obj = RootedObject::new(cx, rval.ptr.to_object());
let class_name = CStr::from_ptr(ObjectClassName(cx, obj.handle()));
let class_name = str::from_utf8(class_name.to_bytes()).unwrap();
EvaluateJSReply::ActorValue {
class: class_name.to_owned(),
uuid: Uuid::new_v4().to_string(),
}
}
};
reply.send(result).unwrap();
}
pub fn handle_get_root_node(page: &Rc<Page>, pipeline: PipelineId, reply: IpcSender<NodeInfo>) {
let page = get_page(&*page, pipeline);
let document = page.document();
let node = document.upcast::<Node>();
reply.send(node.summarize()).unwrap();
}
pub fn handle_get_document_element(page: &Rc<Page>,
pipeline: PipelineId,
reply: IpcSender<NodeInfo>) {
let page = get_page(&*page, pipeline);
let document = page.document();
let document_element = document.GetDocumentElement().unwrap();
let node = document_element.upcast::<Node>();
reply.send(node.summarize()).unwrap();
}
fn find_node_by_unique_id(page: &Rc<Page>, pipeline: PipelineId, node_id: String) -> Root<Node> {
let page = get_page(&*page, pipeline);
let document = page.document();
let node = document.upcast::<Node>();
for candidate in node.traverse_preorder() {
if candidate.get_unique_id() == node_id {
return candidate;
}
}
panic!("couldn't find node with unique id {}", node_id)
}
pub fn handle_get_children(page: &Rc<Page>,
pipeline: PipelineId,
node_id: String,
reply: IpcSender<Vec<NodeInfo>>) {
let parent = find_node_by_unique_id(&*page, pipeline, node_id);
let children = parent.children()
.map(|child| child.summarize())
.collect();
reply.send(children).unwrap();
}
pub fn handle_get_layout(page: &Rc<Page>,
pipeline: PipelineId,
node_id: String,
reply: IpcSender<ComputedNodeLayout>) {
let node = find_node_by_unique_id(&*page, pipeline, node_id);
let elem = node.downcast::<Element>().expect("should be getting layout of element");
let rect = elem.GetBoundingClientRect();
let width = rect.Width() as f32;
let height = rect.Height() as f32;
let window = page.window();
let elem = node.downcast::<Element>().expect("should be getting layout of element");
let computed_style = window.r().GetComputedStyle(elem, None);
reply.send(ComputedNodeLayout {
display: String::from(computed_style.Display()),
position: String::from(computed_style.Position()),
zIndex: String::from(computed_style.ZIndex()),
boxSizing: String::from(computed_style.BoxSizing()),
autoMargins: determine_auto_margins(&window, &*node),
marginTop: String::from(computed_style.MarginTop()),
marginRight: String::from(computed_style.MarginRight()),
marginBottom: String::from(computed_style.MarginBottom()),
marginLeft: String::from(computed_style.MarginLeft()),
borderTopWidth: String::from(computed_style.BorderTopWidth()),
borderRightWidth: String::from(computed_style.BorderRightWidth()),
borderBottomWidth: String::from(computed_style.BorderBottomWidth()),
borderLeftWidth: String::from(computed_style.BorderLeftWidth()),
paddingTop: String::from(computed_style.PaddingTop()),
paddingRight: String::from(computed_style.PaddingRight()),
paddingBottom: String::from(computed_style.PaddingBottom()),
paddingLeft: String::from(computed_style.PaddingLeft()),
width: width,
height: height,
}).unwrap();
}
fn determine_auto_margins(window: &Window, node: &Node) -> AutoMargins {
let margin = window.margin_style_query(node.to_trusted_node_address());
AutoMargins {
top: margin.top == margin_top::computed_value::T::Auto,
right: margin.right == margin_right::computed_value::T::Auto,
bottom: margin.bottom == margin_bottom::computed_value::T::Auto,
left: margin.left == margin_left::computed_value::T::Auto,
}
}
pub fn handle_get_cached_messages(_pipeline_id: PipelineId,
message_types: CachedConsoleMessageTypes,
reply: IpcSender<Vec<CachedConsoleMessage>>) {
// TODO: check the messageTypes against a global Cache for console messages and page exceptions
let mut messages = Vec::new();
if message_types.contains(PAGE_ERROR) {
// TODO: make script error reporter pass all reported errors
// to devtools and cache them for returning here.
let msg = PageError {
_type: "PageError".to_owned(),
errorMessage: "page error test".to_owned(),
sourceName: String::new(),
lineText: String::new(),
lineNumber: 0,
columnNumber: 0,
category: String::new(),
timeStamp: 0,
error: false,
warning: false,
exception: false,
strict: false,
private: false,
};
messages.push(CachedConsoleMessage::PageError(msg));
}
if message_types.contains(CONSOLE_API) {
// TODO: do for real
let msg = ConsoleAPI {
_type: "ConsoleAPI".to_owned(),
level: "error".to_owned(),
filename: "http://localhost/~mihai/mozilla/test.html".to_owned(),
lineNumber: 0,
functionName: String::new(),
timeStamp: 0,
private: false,
arguments: vec!["console error test".to_owned()],
};
messages.push(CachedConsoleMessage::ConsoleAPI(msg));
}
reply.send(messages).unwrap();
}
pub fn handle_modify_attribute(page: &Rc<Page>,
pipeline: PipelineId,
node_id: String,
modifications: Vec<Modification>) {
let node = find_node_by_unique_id(&*page, pipeline, node_id);
let elem = node.downcast::<Element>().expect("should be getting layout of element");
for modification in modifications {
match modification.newValue {
Some(string) => {
let _ = elem.SetAttribute(DOMString::from(modification.attributeName),
DOMString::from(string));
},
None => elem.RemoveAttribute(DOMString::from(modification.attributeName)),
}
}
}
pub fn handle_wants_live_notifications(global: &GlobalRef, send_notifications: bool) {
global.set_devtools_wants_updates(send_notifications);
}
pub fn handle_set_timeline_markers(page: &Rc<Page>,
marker_types: Vec<TimelineMarkerType>,
reply: IpcSender<TimelineMarker>) {
let window = page.window();
window.set_devtools_timeline_markers(marker_types, reply);
}
pub fn handle_drop_timeline_markers(page: &Rc<Page>, marker_types: Vec<TimelineMarkerType>) {
let window = page.window();
window.drop_devtools_timeline_markers(marker_types);
}
pub fn handle_request_animation_frame(page: &Rc<Page>, id: PipelineId, actor_name: String) {
let page = page.find(id).expect("There is no such page");
let doc = page.document();
let devtools_sender = page.window().devtools_chan().unwrap();
doc.request_animation_frame(box move |time| {
let msg = ScriptToDevtoolsControlMsg::FramerateTick(actor_name, time);
devtools_sender.send(msg).unwrap();
});
}