"javascript:" urls: clean up js evaluation code

- move it to its own function
- move the `url = "about:blank" code into the same block
- move the `use` statement to the top of the file
This commit is contained in:
Daniel Johnson 2017-08-27 23:18:19 -07:00
parent fc23cb1a63
commit 5d28dd64d9

View file

@ -119,6 +119,7 @@ use task_source::performance_timeline::{PerformanceTimelineTask, PerformanceTime
use task_source::user_interaction::{UserInteractionTask, UserInteractionTaskSource};
use time::{get_time, precise_time_ns, Tm};
use url::Position;
use url::percent_encoding::percent_decode;
use webdriver_handlers;
use webvr_traits::{WebVREvent, WebVRMsg};
@ -2309,62 +2310,19 @@ impl ScriptThread {
browsing_context_id: Option<BrowsingContextId>,
mut load_data: LoadData,
replace: bool) {
let is_javascript = load_data.url.scheme() == "javascript";
if is_javascript {
self.eval_js_url(parent_pipeline_id, &mut load_data);
}
match browsing_context_id {
Some(browsing_context_id) => {
let iframe = self.documents.borrow().find_iframe(parent_pipeline_id, browsing_context_id);
if let Some(iframe) = iframe {
iframe.navigate_or_reload_child_browsing_context(Some(load_data), NavigationType::Regular, replace);
}
// TODO: Test javascript: urls in iframes
}
None => {
let is_javascript = load_data.url.scheme() == "javascript";
if is_javascript {
use url::percent_encoding::percent_decode;
// Turn javascript: URL into JS code to eval, according to the steps in
// https://html.spec.whatwg.org/multipage/#javascript-protocol
// This slice of the URLs serialization is equivalent to (5.) to (7.):
// Start with the scheme data of the parsed URL;
// append question mark and query component, if any;
// append number sign and fragment component if any.
let encoded = &load_data.url[Position::BeforePath..];
// Percent-decode (8.) and UTF-8 decode (9.)
let script_source = percent_decode(encoded.as_bytes()).decode_utf8_lossy();
// Script source is ready to be evaluated (11.)
let window = self.documents.borrow().find_window(parent_pipeline_id);
if let Some(window) = window {
let _ac = JSAutoCompartment::new(self.get_cx(), window.reflector().get_jsobject().get());
rooted!(in(self.get_cx()) let mut jsval = UndefinedValue());
window.upcast::<GlobalScope>().evaluate_js_on_global_with_result(
&script_source, jsval.handle_mut());
load_data.js_eval_result = if jsval.get().is_string() {
unsafe {
let strval = DOMString::from_jsval(self.get_cx(),
jsval.handle(),
StringificationBehavior::Empty);
match strval {
Ok(ConversionResult::Success(s)) => {
Some(JsEvalResult::Ok(String::from(s).as_bytes().to_vec()))
},
_ => None,
}
}
} else {
Some(JsEvalResult::NoContent)
};
}
}
if is_javascript {
load_data.url = ServoUrl::parse("about:blank").unwrap();
}
self.script_sender
.send((parent_pipeline_id, ScriptMsg::LoadUrl(load_data, replace)))
.unwrap();
@ -2372,6 +2330,50 @@ impl ScriptThread {
}
}
fn eval_js_url(&self, pipeline_id: PipelineId, load_data: &mut LoadData) {
{
// Turn javascript: URL into JS code to eval, according to the steps in
// https://html.spec.whatwg.org/multipage/#javascript-protocol
// This slice of the URLs serialization is equivalent to (5.) to (7.):
// Start with the scheme data of the parsed URL;
// append question mark and query component, if any;
// append number sign and fragment component if any.
let encoded = &load_data.url[Position::BeforePath..];
// Percent-decode (8.) and UTF-8 decode (9.)
let script_source = percent_decode(encoded.as_bytes()).decode_utf8_lossy();
// Script source is ready to be evaluated (11.)
let window = self.documents.borrow().find_window(pipeline_id);
if let Some(window) = window {
let _ac = JSAutoCompartment::new(self.get_cx(), window.reflector().get_jsobject().get());
rooted!(in(self.get_cx()) let mut jsval = UndefinedValue());
window.upcast::<GlobalScope>().evaluate_js_on_global_with_result(
&script_source, jsval.handle_mut());
load_data.js_eval_result = if jsval.get().is_string() {
unsafe {
let strval = DOMString::from_jsval(self.get_cx(),
jsval.handle(),
StringificationBehavior::Empty);
match strval {
Ok(ConversionResult::Success(s)) => {
Some(JsEvalResult::Ok(String::from(s).as_bytes().to_vec()))
},
_ => None,
}
}
} else {
Some(JsEvalResult::NoContent)
};
}
};
load_data.url = ServoUrl::parse("about:blank").unwrap();
}
fn handle_resize_event(&self, pipeline_id: PipelineId, new_size: WindowSizeData, size_type: WindowSizeType) {
let document = match { self.documents.borrow().find_document(pipeline_id) } {
Some(document) => document,