aboutsummaryrefslogtreecommitdiffstats
path: root/components/script/dom/htmlcanvaselement.rs
diff options
context:
space:
mode:
Diffstat (limited to 'components/script/dom/htmlcanvaselement.rs')
-rw-r--r--components/script/dom/htmlcanvaselement.rs134
1 files changed, 78 insertions, 56 deletions
diff --git a/components/script/dom/htmlcanvaselement.rs b/components/script/dom/htmlcanvaselement.rs
index 7bc6a233e66..00b04db7ee8 100644
--- a/components/script/dom/htmlcanvaselement.rs
+++ b/components/script/dom/htmlcanvaselement.rs
@@ -61,9 +61,11 @@ pub struct HTMLCanvasElement {
}
impl HTMLCanvasElement {
- fn new_inherited(local_name: LocalName,
- prefix: Option<Prefix>,
- document: &Document) -> HTMLCanvasElement {
+ fn new_inherited(
+ local_name: LocalName,
+ prefix: Option<Prefix>,
+ document: &Document,
+ ) -> HTMLCanvasElement {
HTMLCanvasElement {
htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
context: DomRefCell::new(None),
@@ -71,12 +73,18 @@ impl HTMLCanvasElement {
}
#[allow(unrooted_must_root)]
- pub fn new(local_name: LocalName,
- prefix: Option<Prefix>,
- document: &Document) -> DomRoot<HTMLCanvasElement> {
- Node::reflect_node(Box::new(HTMLCanvasElement::new_inherited(local_name, prefix, document)),
- document,
- HTMLCanvasElementBinding::Wrap)
+ pub fn new(
+ local_name: LocalName,
+ prefix: Option<Prefix>,
+ document: &Document,
+ ) -> DomRoot<HTMLCanvasElement> {
+ Node::reflect_node(
+ Box::new(HTMLCanvasElement::new_inherited(
+ local_name, prefix, document,
+ )),
+ document,
+ HTMLCanvasElementBinding::Wrap,
+ )
}
fn recreate_contexts(&self) {
@@ -124,13 +132,15 @@ impl LayoutHTMLCanvasElementHelpers for LayoutDom<HTMLCanvasElement> {
Some(&CanvasContext::WebGL2(ref context)) => {
context.to_layout().canvas_data_source()
},
- None => {
- HTMLCanvasDataSource::Image(None)
- }
+ None => HTMLCanvasDataSource::Image(None),
};
- let width_attr = canvas.upcast::<Element>().get_attr_for_layout(&ns!(), &local_name!("width"));
- let height_attr = canvas.upcast::<Element>().get_attr_for_layout(&ns!(), &local_name!("height"));
+ let width_attr = canvas
+ .upcast::<Element>()
+ .get_attr_for_layout(&ns!(), &local_name!("width"));
+ let height_attr = canvas
+ .upcast::<Element>()
+ .get_attr_for_layout(&ns!(), &local_name!("height"));
HTMLCanvasData {
source: source,
width: width_attr.map_or(DEFAULT_WIDTH, |val| val.as_uint()),
@@ -164,7 +174,8 @@ impl LayoutHTMLCanvasElementHelpers for LayoutDom<HTMLCanvasElement> {
fn get_canvas_id_for_layout(&self) -> CanvasId {
unsafe {
let canvas = &*self.unsafe_get();
- if let &Some(CanvasContext::Context2d(ref context)) = canvas.context.borrow_for_layout() {
+ if let &Some(CanvasContext::Context2d(ref context)) = canvas.context.borrow_for_layout()
+ {
context.to_layout().get_canvas_id()
} else {
CanvasId(0)
@@ -173,7 +184,6 @@ impl LayoutHTMLCanvasElementHelpers for LayoutDom<HTMLCanvasElement> {
}
}
-
impl HTMLCanvasElement {
pub fn context(&self) -> Option<Ref<CanvasContext>> {
ref_filter_map::ref_filter_map(self.context.borrow(), |ctx| ctx.as_ref())
@@ -220,7 +230,7 @@ impl HTMLCanvasElement {
options: HandleValue,
) -> Option<DomRoot<WebGL2RenderingContext>> {
if !PREFS.is_webgl2_enabled() {
- return None
+ return None;
}
if let Some(ctx) = self.context() {
return match *ctx {
@@ -241,7 +251,7 @@ impl HTMLCanvasElement {
match *self.context.borrow() {
Some(CanvasContext::WebGL(ref context)) => Some(DomRoot::from_ref(&*context)),
Some(CanvasContext::WebGL2(ref context)) => Some(context.base_context()),
- _ => None
+ _ => None,
}
}
@@ -255,11 +265,11 @@ impl HTMLCanvasElement {
Ok(ConversionResult::Failure(ref error)) => {
throw_type_error(cx, &error);
None
- }
+ },
_ => {
debug!("Unexpected error on conversion of WebGLContextAttributes");
None
- }
+ },
}
}
@@ -271,13 +281,17 @@ impl HTMLCanvasElement {
let size = self.get_size();
if size.width == 0 || size.height == 0 {
- return None
+ return None;
}
let data = match self.context.borrow().as_ref() {
Some(&CanvasContext::Context2d(ref context)) => {
- let (sender, receiver) = ipc::channel(self.global().time_profiler_chan().clone()).unwrap();
- let msg = CanvasMsg::FromScript(FromScriptMsg::SendPixels(sender), context.get_canvas_id());
+ let (sender, receiver) =
+ ipc::channel(self.global().time_profiler_chan().clone()).unwrap();
+ let msg = CanvasMsg::FromScript(
+ FromScriptMsg::SendPixels(sender),
+ context.get_canvas_id(),
+ );
context.get_ipc_renderer().send(msg).unwrap();
receiver.recv().unwrap()?.into()
@@ -319,19 +333,16 @@ impl HTMLCanvasElementMethods for HTMLCanvasElement {
options: HandleValue,
) -> Option<RenderingContext> {
match &*id {
- "2d" => {
- self.get_or_init_2d_context()
- .map(RenderingContext::CanvasRenderingContext2D)
- }
- "webgl" | "experimental-webgl" => {
- self.get_or_init_webgl_context(cx, options)
- .map(RenderingContext::WebGLRenderingContext)
- }
- "webgl2" | "experimental-webgl2" => {
- self.get_or_init_webgl2_context(cx, options)
- .map(RenderingContext::WebGL2RenderingContext)
- }
- _ => None
+ "2d" => self
+ .get_or_init_2d_context()
+ .map(RenderingContext::CanvasRenderingContext2D),
+ "webgl" | "experimental-webgl" => self
+ .get_or_init_webgl_context(cx, options)
+ .map(RenderingContext::WebGLRenderingContext),
+ "webgl2" | "experimental-webgl2" => self
+ .get_or_init_webgl2_context(cx, options)
+ .map(RenderingContext::WebGL2RenderingContext),
+ _ => None,
}
}
@@ -358,27 +369,31 @@ impl HTMLCanvasElementMethods for HTMLCanvasElement {
// Step 3.
let raw_data = match *self.context.borrow() {
Some(CanvasContext::Context2d(ref context)) => {
- let image_data = context.GetImageData(Finite::wrap(0f64), Finite::wrap(0f64),
- Finite::wrap(self.Width() as f64),
- Finite::wrap(self.Height() as f64))?;
+ let image_data = context.GetImageData(
+ Finite::wrap(0f64),
+ Finite::wrap(0f64),
+ Finite::wrap(self.Width() as f64),
+ Finite::wrap(self.Height() as f64),
+ )?;
image_data.get_data_array()
- }
+ },
Some(CanvasContext::WebGL(ref context)) => {
match context.get_image_data(self.Width(), self.Height()) {
Some(data) => data,
None => return Ok(USVString("data:,".into())),
}
- }
- Some(CanvasContext::WebGL2(ref context)) => {
- match context.base_context().get_image_data(self.Width(), self.Height()) {
- Some(data) => data,
- None => return Ok(USVString("data:,".into())),
- }
- }
+ },
+ Some(CanvasContext::WebGL2(ref context)) => match context
+ .base_context()
+ .get_image_data(self.Width(), self.Height())
+ {
+ Some(data) => data,
+ None => return Ok(USVString("data:,".into())),
+ },
None => {
// Each pixel is fully-transparent black.
vec![0; (self.Width() * self.Height() * 4) as usize]
- }
+ },
};
// Only handle image/png for now.
@@ -387,7 +402,9 @@ impl HTMLCanvasElementMethods for HTMLCanvasElement {
let mut encoded = Vec::new();
{
let encoder: PNGEncoder<&mut Vec<u8>> = PNGEncoder::new(&mut encoded);
- encoder.encode(&raw_data, self.Width(), self.Height(), ColorType::RGBA(8)).unwrap();
+ encoder
+ .encode(&raw_data, self.Width(), self.Height(), ColorType::RGBA(8))
+ .unwrap();
}
let encoded = base64::encode(&encoded);
@@ -412,7 +429,10 @@ impl VirtualMethods for HTMLCanvasElement {
match name {
&local_name!("width") => AttrValue::from_u32(value.into(), DEFAULT_WIDTH),
&local_name!("height") => AttrValue::from_u32(value.into(), DEFAULT_HEIGHT),
- _ => self.super_type().unwrap().parse_plain_attribute(name, value),
+ _ => self
+ .super_type()
+ .unwrap()
+ .parse_plain_attribute(name, value),
}
}
}
@@ -438,13 +458,15 @@ pub mod utils {
pub fn request_image_from_cache(window: &Window, url: ServoUrl) -> ImageResponse {
let image_cache = window.image_cache();
- let response =
- image_cache.find_image_or_metadata(url.into(),
- UsePlaceholder::No,
- CanRequestImages::No);
+ let response = image_cache.find_image_or_metadata(
+ url.into(),
+ UsePlaceholder::No,
+ CanRequestImages::No,
+ );
match response {
- Ok(ImageOrMetadataAvailable::ImageAvailable(image, url)) =>
- ImageResponse::Loaded(image, url),
+ Ok(ImageOrMetadataAvailable::ImageAvailable(image, url)) => {
+ ImageResponse::Loaded(image, url)
+ },
_ => ImageResponse::None,
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-22 03:12:32 +0000