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Format script component

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chansuke 2018-09-18 23:24:15 +09:00 • committed by Josh Matthews
parent 2ca7a13473
commit c37a345dc9
357 changed files with 25485 additions and 18076 deletions
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295
components/script/dom/paintworkletglobalscope.rs
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@ -94,15 +94,24 @@ pub struct PaintWorkletGlobalScope {
impl PaintWorkletGlobalScope {
#[allow(unsafe_code)]
pub fn new(runtime: &Runtime,
pipeline_id: PipelineId,
base_url: ServoUrl,
executor: WorkletExecutor,
init: &WorkletGlobalScopeInit)
-> DomRoot<PaintWorkletGlobalScope> {
debug!("Creating paint worklet global scope for pipeline {}.", pipeline_id);
pub fn new(
runtime: &Runtime,
pipeline_id: PipelineId,
base_url: ServoUrl,
executor: WorkletExecutor,
init: &WorkletGlobalScopeInit,
) -> DomRoot<PaintWorkletGlobalScope> {
debug!(
"Creating paint worklet global scope for pipeline {}.",
pipeline_id
);
let global = Box::new(PaintWorkletGlobalScope {
worklet_global: WorkletGlobalScope::new_inherited(pipeline_id, base_url, executor, init),
worklet_global: WorkletGlobalScope::new_inherited(
pipeline_id,
base_url,
executor,
init,
),
image_cache: init.image_cache.clone(),
paint_definitions: Default::default(),
paint_class_instances: Default::default(),
@ -128,7 +137,14 @@ impl PaintWorkletGlobalScope {
pub fn perform_a_worklet_task(&self, task: PaintWorkletTask) {
match task {
PaintWorkletTask::DrawAPaintImage(name, size, device_pixel_ratio, properties, arguments, sender) => {
PaintWorkletTask::DrawAPaintImage(
name,
size,
device_pixel_ratio,
properties,
arguments,
sender,
) => {
let cache_hit = (&*self.cached_name.borrow() == &name) &&
(self.cached_size.get() == size) &&
(self.cached_device_pixel_ratio.get() == device_pixel_ratio) &&
@ -139,8 +155,17 @@ impl PaintWorkletGlobalScope {
self.cached_result.borrow().clone()
} else {
debug!("Cache miss on paint worklet {}!", name);
let map = StylePropertyMapReadOnly::from_iter(self.upcast(), properties.iter().cloned());
let result = self.draw_a_paint_image(&name, size, device_pixel_ratio, &*map, &*arguments);
let map = StylePropertyMapReadOnly::from_iter(
self.upcast(),
properties.iter().cloned(),
);
let result = self.draw_a_paint_image(
&name,
size,
device_pixel_ratio,
&*map,
&*arguments,
);
if (result.image_key.is_some()) && (result.missing_image_urls.is_empty()) {
*self.cached_name.borrow_mut() = name;
self.cached_size.set(size);
@ -152,7 +177,7 @@ impl PaintWorkletGlobalScope {
result
};
let _ = sender.send(result);
}
},
PaintWorkletTask::SpeculativelyDrawAPaintImage(name, properties, arguments) => {
let should_speculate = (&*self.cached_name.borrow() != &name) ||
(&*self.cached_properties.borrow() != &properties) ||
@ -160,8 +185,17 @@ impl PaintWorkletGlobalScope {
if should_speculate {
let size = self.cached_size.get();
let device_pixel_ratio = self.cached_device_pixel_ratio.get();
let map = StylePropertyMapReadOnly::from_iter(self.upcast(), properties.iter().cloned());
let result = self.draw_a_paint_image(&name, size, device_pixel_ratio, &*map, &*arguments);
let map = StylePropertyMapReadOnly::from_iter(
self.upcast(),
properties.iter().cloned(),
);
let result = self.draw_a_paint_image(
&name,
size,
device_pixel_ratio,
&*map,
&*arguments,
);
if (result.image_key.is_some()) && (result.missing_image_urls.is_empty()) {
*self.cached_name.borrow_mut() = name;
*self.cached_properties.borrow_mut() = properties;
@ -169,41 +203,53 @@ impl PaintWorkletGlobalScope {
*self.cached_result.borrow_mut() = result;
}
}
}
},
}
}
/// <https://drafts.css-houdini.org/css-paint-api/#draw-a-paint-image>
fn draw_a_paint_image(&self,
name: &Atom,
size_in_px: TypedSize2D<f32, CSSPixel>,
device_pixel_ratio: TypedScale<f32, CSSPixel, DevicePixel>,
properties: &StylePropertyMapReadOnly,
arguments: &[String])
-> DrawAPaintImageResult
{
fn draw_a_paint_image(
&self,
name: &Atom,
size_in_px: TypedSize2D<f32, CSSPixel>,
device_pixel_ratio: TypedScale<f32, CSSPixel, DevicePixel>,
properties: &StylePropertyMapReadOnly,
arguments: &[String],
) -> DrawAPaintImageResult {
let size_in_dpx = size_in_px * device_pixel_ratio;
let size_in_dpx = TypedSize2D::new(size_in_dpx.width.abs() as u32, size_in_dpx.height.abs() as u32);
let size_in_dpx = TypedSize2D::new(
size_in_dpx.width.abs() as u32,
size_in_dpx.height.abs() as u32,
);
// TODO: Steps 1-5.
// TODO: document paint definitions.
self.invoke_a_paint_callback(name, size_in_px, size_in_dpx, device_pixel_ratio, properties, arguments)
self.invoke_a_paint_callback(
name,
size_in_px,
size_in_dpx,
device_pixel_ratio,
properties,
arguments,
)
}
/// <https://drafts.css-houdini.org/css-paint-api/#invoke-a-paint-callback>
#[allow(unsafe_code)]
fn invoke_a_paint_callback(&self,
name: &Atom,
size_in_px: TypedSize2D<f32, CSSPixel>,
size_in_dpx: TypedSize2D<u32, DevicePixel>,
device_pixel_ratio: TypedScale<f32, CSSPixel, DevicePixel>,
properties: &StylePropertyMapReadOnly,
arguments: &[String])
-> DrawAPaintImageResult
{
debug!("Invoking a paint callback {}({},{}) at {}.",
name, size_in_px.width, size_in_px.height, device_pixel_ratio);
fn invoke_a_paint_callback(
&self,
name: &Atom,
size_in_px: TypedSize2D<f32, CSSPixel>,
size_in_dpx: TypedSize2D<u32, DevicePixel>,
device_pixel_ratio: TypedScale<f32, CSSPixel, DevicePixel>,
properties: &StylePropertyMapReadOnly,
arguments: &[String],
) -> DrawAPaintImageResult {
debug!(
"Invoking a paint callback {}({},{}) at {}.",
name, size_in_px.width, size_in_px.height, device_pixel_ratio
);
let cx = self.worklet_global.get_cx();
let _ac = JSAutoCompartment::new(cx, self.worklet_global.reflector().get_jsobject().get());
@ -217,7 +263,7 @@ impl PaintWorkletGlobalScope {
// Step 2.2.
warn!("Drawing un-registered paint definition {}.", name);
return self.invalid_image(size_in_dpx, vec![]);
}
},
Some(definition) => {
// Step 5.1
if !definition.constructor_valid_flag.get() {
@ -227,7 +273,7 @@ impl PaintWorkletGlobalScope {
class_constructor.set(definition.class_constructor.get());
paint_function.set(definition.paint_function.get());
DomRoot::from_ref(&*definition.context)
}
},
};
// Steps 5.2-5.4
@ -242,19 +288,28 @@ impl PaintWorkletGlobalScope {
// Step 5.2-5.3
let args = HandleValueArray::new();
rooted!(in(cx) let mut result = null_mut::<JSObject>());
unsafe { Construct1(cx, class_constructor.handle(), &args, result.handle_mut()); }
unsafe {
Construct1(cx, class_constructor.handle(), &args, result.handle_mut());
}
paint_instance.set(ObjectValue(result.get()));
if unsafe { JS_IsExceptionPending(cx) } {
debug!("Paint constructor threw an exception {}.", name);
unsafe { JS_ClearPendingException(cx); }
self.paint_definitions.borrow_mut().get_mut(name)
unsafe {
JS_ClearPendingException(cx);
}
self.paint_definitions
.borrow_mut()
.get_mut(name)
.expect("Vanishing paint definition.")
.constructor_valid_flag.set(false);
.constructor_valid_flag
.set(false);
return self.invalid_image(size_in_dpx, vec![]);
}
// Step 5.4
entry.insert(Box::new(Heap::default())).set(paint_instance.get());
}
entry
.insert(Box::new(Heap::default()))
.set(paint_instance.get());
},
};
// TODO: Steps 6-7
@ -271,10 +326,12 @@ impl PaintWorkletGlobalScope {
debug!("Invoking paint function {}.", name);
rooted_vec!(let arguments_values <- arguments.iter().cloned()
.map(|argument| CSSStyleValue::new(self.upcast(), argument)));
let arguments_value_vec: Vec<JSVal> = arguments_values.iter()
let arguments_value_vec: Vec<JSVal> = arguments_values
.iter()
.map(|argument| ObjectValue(argument.reflector().get_jsobject().get()))
.collect();
let arguments_value_array = unsafe { HandleValueArray::from_rooted_slice(&*arguments_value_vec) };
let arguments_value_array =
unsafe { HandleValueArray::from_rooted_slice(&*arguments_value_vec) };
rooted!(in(cx) let argument_object = unsafe { JS_NewArrayObject(cx, &arguments_value_array) });
let args_slice = [
@ -286,18 +343,28 @@ impl PaintWorkletGlobalScope {
let args = unsafe { HandleValueArray::from_rooted_slice(&args_slice) };
rooted!(in(cx) let mut result = UndefinedValue());
unsafe { Call(cx, paint_instance.handle(), paint_function.handle(), &args, result.handle_mut()); }
unsafe {
Call(
cx,
paint_instance.handle(),
paint_function.handle(),
&args,
result.handle_mut(),
);
}
let missing_image_urls = rendering_context.take_missing_image_urls();
// Step 13.
if unsafe { JS_IsExceptionPending(cx) } {
debug!("Paint function threw an exception {}.", name);
unsafe { JS_ClearPendingException(cx); }
unsafe {
JS_ClearPendingException(cx);
}
return self.invalid_image(size_in_dpx, missing_image_urls);
}
let (sender, receiver) =
ipc::channel(self.global().time_profiler_chan().clone()).expect("IPC channel creation.");
let (sender, receiver) = ipc::channel(self.global().time_profiler_chan().clone())
.expect("IPC channel creation.");
rendering_context.send_data(sender);
let image_key = match receiver.recv() {
Ok(data) => Some(data.image_key),
@ -314,8 +381,11 @@ impl PaintWorkletGlobalScope {
}
// https://drafts.csswg.org/css-images-4/#invalid-image
fn invalid_image(&self, size: TypedSize2D<u32, DevicePixel>, missing_image_urls: Vec<ServoUrl>)
-> DrawAPaintImageResult {
fn invalid_image(
&self,
size: TypedSize2D<u32, DevicePixel>,
missing_image_urls: Vec<ServoUrl>,
) -> DrawAPaintImageResult {
debug!("Returning an invalid image.");
DrawAPaintImageResult {
width: size.width as u32,
@ -333,36 +403,47 @@ impl PaintWorkletGlobalScope {
executor: Mutex<WorkletExecutor>,
}
impl SpeculativePainter for WorkletPainter {
fn speculatively_draw_a_paint_image(&self,
properties: Vec<(Atom, String)>,
arguments: Vec<String>) {
fn speculatively_draw_a_paint_image(
&self,
properties: Vec<(Atom, String)>,
arguments: Vec<String>,
) {
let name = self.name.clone();
let task = PaintWorkletTask::SpeculativelyDrawAPaintImage(name, properties, arguments);
self.executor.lock().expect("Locking a painter.")
let task =
PaintWorkletTask::SpeculativelyDrawAPaintImage(name, properties, arguments);
self.executor
.lock()
.expect("Locking a painter.")
.schedule_a_worklet_task(WorkletTask::Paint(task));
}
}
impl Painter for WorkletPainter {
fn draw_a_paint_image(&self,
size: TypedSize2D<f32, CSSPixel>,
device_pixel_ratio: TypedScale<f32, CSSPixel, DevicePixel>,
properties: Vec<(Atom, String)>,
arguments: Vec<String>)
-> Result<DrawAPaintImageResult, PaintWorkletError> {
fn draw_a_paint_image(
&self,
size: TypedSize2D<f32, CSSPixel>,
device_pixel_ratio: TypedScale<f32, CSSPixel, DevicePixel>,
properties: Vec<(Atom, String)>,
arguments: Vec<String>,
) -> Result<DrawAPaintImageResult, PaintWorkletError> {
let name = self.name.clone();
let (sender, receiver) = channel();
let task = PaintWorkletTask::DrawAPaintImage(name,
size,
device_pixel_ratio,
properties,
arguments,
sender);
self.executor.lock().expect("Locking a painter.")
let task = PaintWorkletTask::DrawAPaintImage(
name,
size,
device_pixel_ratio,
properties,
arguments,
sender,
);
self.executor
.lock()
.expect("Locking a painter.")
.schedule_a_worklet_task(WorkletTask::Paint(task));
let timeout = PREFS.get("dom.worklet.timeout_ms")
.as_u64()
.unwrap_or(10u64);
let timeout = PREFS
.get("dom.worklet.timeout_ms")
.as_u64()
.unwrap_or(10u64);
select! {
recv(base_channel::after(Duration::from_millis(timeout))) => {
@ -381,15 +462,15 @@ impl PaintWorkletGlobalScope {
/// Tasks which can be peformed by a paint worklet
pub enum PaintWorkletTask {
DrawAPaintImage(Atom,
TypedSize2D<f32, CSSPixel>,
TypedScale<f32, CSSPixel, DevicePixel>,
Vec<(Atom, String)>,
Vec<String>,
Sender<DrawAPaintImageResult>),
SpeculativelyDrawAPaintImage(Atom,
Vec<(Atom, String)>,
Vec<String>),
DrawAPaintImage(
Atom,
TypedSize2D<f32, CSSPixel>,
TypedScale<f32, CSSPixel, DevicePixel>,
Vec<(Atom, String)>,
Vec<String>,
Sender<DrawAPaintImageResult>,
),
SpeculativelyDrawAPaintImage(Atom, Vec<(Atom, String)>, Vec<String>),
}
/// A paint definition
@ -412,13 +493,13 @@ struct PaintDefinition {
}
impl PaintDefinition {
fn new(class_constructor: HandleValue,
paint_function: HandleValue,
alpha: bool,
input_arguments_len: usize,
context: &PaintRenderingContext2D)
-> Box<PaintDefinition>
{
fn new(
class_constructor: HandleValue,
paint_function: HandleValue,
alpha: bool,
input_arguments_len: usize,
context: &PaintRenderingContext2D,
) -> Box<PaintDefinition> {
let result = Box::new(PaintDefinition {
class_constructor: Heap::default(),
paint_function: Heap::default(),
@ -447,7 +528,7 @@ impl PaintWorkletGlobalScopeMethods for PaintWorkletGlobalScope {
// Step 1.
if name.is_empty() {
return Err(Error::Type(String::from("Empty paint name."))) ;
return Err(Error::Type(String::from("Empty paint name.")));
}
// Step 2-3.
@ -458,20 +539,19 @@ impl PaintWorkletGlobalScopeMethods for PaintWorkletGlobalScope {
// Step 4-6.
let mut property_names: Vec<String> =
unsafe { get_property(cx, paint_obj.handle(), "inputProperties", ()) }?
.unwrap_or_default();
.unwrap_or_default();
let properties = property_names.drain(..).map(Atom::from).collect();
// Step 7-9.
let input_arguments: Vec<String> =
unsafe { get_property(cx, paint_obj.handle(), "inputArguments", ()) }?
.unwrap_or_default();
.unwrap_or_default();
// TODO: Steps 10-11.
// Steps 12-13.
let alpha: bool =
unsafe { get_property(cx, paint_obj.handle(), "alpha", ()) }?
.unwrap_or(true);
unsafe { get_property(cx, paint_obj.handle(), "alpha", ()) }?.unwrap_or(true);
// Step 14
if unsafe { !IsConstructor(paint_obj.get()) } {
@ -480,7 +560,9 @@ impl PaintWorkletGlobalScopeMethods for PaintWorkletGlobalScope {
// Steps 15-16
rooted!(in(cx) let mut prototype = UndefinedValue());
unsafe { get_property_jsval(cx, paint_obj.handle(), "prototype", prototype.handle_mut())?; }
unsafe {
get_property_jsval(cx, paint_obj.handle(), "prototype", prototype.handle_mut())?;
}
if !prototype.is_object() {
return Err(Error::Type(String::from("Prototype is not an object.")));
}
@ -488,29 +570,36 @@ impl PaintWorkletGlobalScopeMethods for PaintWorkletGlobalScope {
// Steps 17-18
rooted!(in(cx) let mut paint_function = UndefinedValue());
unsafe { get_property_jsval(cx, prototype.handle(), "paint", paint_function.handle_mut())?; }
unsafe {
get_property_jsval(cx, prototype.handle(), "paint", paint_function.handle_mut())?;
}
if !paint_function.is_object() || unsafe { !IsCallable(paint_function.to_object()) } {
return Err(Error::Type(String::from("Paint function is not callable.")));
}
// Step 19.
let context = PaintRenderingContext2D::new(self);
let definition = PaintDefinition::new(paint_val.handle(),
paint_function.handle(),
alpha,
input_arguments.len(),
&*context);
let definition = PaintDefinition::new(
paint_val.handle(),
paint_function.handle(),
alpha,
input_arguments.len(),
&*context,
);
// Step 20.
debug!("Registering definition {}.", name);
self.paint_definitions.borrow_mut().insert(name.clone(), definition);
self.paint_definitions
.borrow_mut()
.insert(name.clone(), definition);
// TODO: Step 21.
// Inform layout that there is a registered paint worklet.
// TODO: layout will end up getting this message multiple times.
let painter = self.painter(name.clone());
self.worklet_global.register_paint_worklet(name, properties, painter);
self.worklet_global
.register_paint_worklet(name, properties, painter);
Ok(())
}