mirror of
https://github.com/servo/servo.git
synced 2025-07-22 23:03:42 +01:00
Put HTMLMediaElement first in its module
This commit is contained in:
Anthony Ramine
parent
f5e23a3a90
commit
e169acd1d6
1 changed files with 174 additions and 174 deletions
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@ -42,180 +42,6 @@ use std::sync::{Arc, Mutex};
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use task_source::TaskSource;
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use time::{self, Timespec, Duration};
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struct HTMLMediaElementContext {
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/// The element that initiated the request.
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elem: Trusted<HTMLMediaElement>,
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/// The response body received to date.
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data: Vec<u8>,
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/// The response metadata received to date.
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metadata: Option<Metadata>,
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/// The generation of the media element when this fetch started.
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generation_id: u32,
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/// Time of last progress notification.
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next_progress_event: Timespec,
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/// Url of resource requested.
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url: ServoUrl,
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/// Whether the media metadata has been completely received.
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have_metadata: bool,
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/// True if this response is invalid and should be ignored.
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ignore_response: bool,
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}
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impl FetchResponseListener for HTMLMediaElementContext {
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fn process_request_body(&mut self) {}
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fn process_request_eof(&mut self) {}
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// https://html.spec.whatwg.org/multipage/#media-data-processing-steps-list
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fn process_response(&mut self, metadata: Result<FetchMetadata, NetworkError>) {
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self.metadata = metadata.ok().map(|m| {
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match m {
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FetchMetadata::Unfiltered(m) => m,
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FetchMetadata::Filtered { unsafe_, .. } => unsafe_
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}
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});
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// => "If the media data cannot be fetched at all..."
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let is_failure = self.metadata
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.as_ref()
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.and_then(|m| m.status
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.as_ref()
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.map(|&(s, _)| s < 200 || s >= 300))
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.unwrap_or(false);
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if is_failure {
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// Ensure that the element doesn't receive any further notifications
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// of the aborted fetch. The dedicated failure steps will be executed
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// when response_complete runs.
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self.ignore_response = true;
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}
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}
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fn process_response_chunk(&mut self, mut payload: Vec<u8>) {
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if self.ignore_response {
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return;
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}
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self.data.append(&mut payload);
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let elem = self.elem.root();
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// https://html.spec.whatwg.org/multipage/#media-data-processing-steps-list
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// => "Once enough of the media data has been fetched to determine the duration..."
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if !self.have_metadata {
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self.check_metadata(&elem);
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} else {
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elem.change_ready_state(HAVE_CURRENT_DATA);
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}
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// https://html.spec.whatwg.org/multipage/#concept-media-load-resource step 4,
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// => "If mode is remote" step 2
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if time::get_time() > self.next_progress_event {
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let window = window_from_node(&*elem);
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window.dom_manipulation_task_source().queue_simple_event(
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elem.upcast(),
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atom!("progress"),
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&window,
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);
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self.next_progress_event = time::get_time() + Duration::milliseconds(350);
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}
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}
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// https://html.spec.whatwg.org/multipage/#media-data-processing-steps-list
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fn process_response_eof(&mut self, status: Result<(), NetworkError>) {
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let elem = self.elem.root();
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// => "If the media data can be fetched but is found by inspection to be in an unsupported
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// format, or can otherwise not be rendered at all"
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if !self.have_metadata {
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elem.queue_dedicated_media_source_failure_steps();
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}
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// => "Once the entire media resource has been fetched..."
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else if status.is_ok() {
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elem.change_ready_state(HAVE_ENOUGH_DATA);
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elem.upcast::<EventTarget>().fire_event(atom!("progress"));
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elem.network_state.set(NETWORK_IDLE);
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elem.upcast::<EventTarget>().fire_event(atom!("suspend"));
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}
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// => "If the connection is interrupted after some media data has been received..."
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else if elem.ready_state.get() != HAVE_NOTHING {
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// Step 2
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elem.error.set(Some(&*MediaError::new(&*window_from_node(&*elem),
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MEDIA_ERR_NETWORK)));
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// Step 3
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elem.network_state.set(NETWORK_IDLE);
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// TODO: Step 4 - update delay load flag
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// Step 5
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elem.upcast::<EventTarget>().fire_event(atom!("error"));
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} else {
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// => "If the media data cannot be fetched at all..."
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elem.queue_dedicated_media_source_failure_steps();
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}
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let document = document_from_node(&*elem);
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document.finish_load(LoadType::Media(self.url.clone()));
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}
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}
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impl PreInvoke for HTMLMediaElementContext {
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fn should_invoke(&self) -> bool {
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//TODO: finish_load needs to run at some point if the generation changes.
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self.elem.root().generation_id.get() == self.generation_id
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}
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}
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impl HTMLMediaElementContext {
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fn new(elem: &HTMLMediaElement, url: ServoUrl) -> HTMLMediaElementContext {
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HTMLMediaElementContext {
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elem: Trusted::new(elem),
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data: vec![],
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metadata: None,
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generation_id: elem.generation_id.get(),
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next_progress_event: time::get_time() + Duration::milliseconds(350),
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url: url,
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have_metadata: false,
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ignore_response: false,
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}
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}
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fn check_metadata(&mut self, elem: &HTMLMediaElement) {
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match audio_video_metadata::get_format_from_slice(&self.data) {
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Ok(audio_video_metadata::Metadata::Video(meta)) => {
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let dur = meta.audio.duration.unwrap_or(::std::time::Duration::new(0, 0));
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*elem.video.borrow_mut() = Some(VideoMedia {
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format: format!("{:?}", meta.format),
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duration: Duration::seconds(dur.as_secs() as i64) +
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Duration::nanoseconds(dur.subsec_nanos() as i64),
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width: meta.dimensions.width,
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height: meta.dimensions.height,
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video: meta.video.unwrap_or("".to_owned()),
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audio: meta.audio.audio,
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});
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// Step 6
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elem.change_ready_state(HAVE_METADATA);
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self.have_metadata = true;
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}
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_ => {}
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}
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}
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}
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#[derive(HeapSizeOf, JSTraceable)]
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pub struct VideoMedia {
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format: String,
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#[ignore_heap_size_of = "defined in time"]
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duration: Duration,
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width: u32,
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height: u32,
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video: String,
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audio: Option<String>,
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}
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#[dom_struct]
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pub struct HTMLMediaElement {
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htmlelement: HTMLElement,
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@ -230,6 +56,17 @@ pub struct HTMLMediaElement {
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video: DOMRefCell<Option<VideoMedia>>,
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}
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#[derive(HeapSizeOf, JSTraceable)]
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pub struct VideoMedia {
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format: String,
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#[ignore_heap_size_of = "defined in time"]
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duration: Duration,
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width: u32,
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height: u32,
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video: String,
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audio: Option<String>,
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}
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impl HTMLMediaElement {
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pub fn new_inherited(tag_name: LocalName,
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prefix: Option<Prefix>, document: &Document)
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@ -888,3 +725,166 @@ enum Resource {
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Object,
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Url(ServoUrl),
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}
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struct HTMLMediaElementContext {
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/// The element that initiated the request.
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elem: Trusted<HTMLMediaElement>,
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/// The response body received to date.
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data: Vec<u8>,
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/// The response metadata received to date.
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metadata: Option<Metadata>,
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/// The generation of the media element when this fetch started.
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generation_id: u32,
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/// Time of last progress notification.
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next_progress_event: Timespec,
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/// Url of resource requested.
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url: ServoUrl,
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/// Whether the media metadata has been completely received.
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have_metadata: bool,
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/// True if this response is invalid and should be ignored.
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ignore_response: bool,
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}
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impl FetchResponseListener for HTMLMediaElementContext {
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fn process_request_body(&mut self) {}
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fn process_request_eof(&mut self) {}
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// https://html.spec.whatwg.org/multipage/#media-data-processing-steps-list
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fn process_response(&mut self, metadata: Result<FetchMetadata, NetworkError>) {
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self.metadata = metadata.ok().map(|m| {
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match m {
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FetchMetadata::Unfiltered(m) => m,
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FetchMetadata::Filtered { unsafe_, .. } => unsafe_
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}
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});
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// => "If the media data cannot be fetched at all..."
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let is_failure = self.metadata
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.as_ref()
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.and_then(|m| m.status
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.as_ref()
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.map(|&(s, _)| s < 200 || s >= 300))
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.unwrap_or(false);
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if is_failure {
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// Ensure that the element doesn't receive any further notifications
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// of the aborted fetch. The dedicated failure steps will be executed
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// when response_complete runs.
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self.ignore_response = true;
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}
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}
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fn process_response_chunk(&mut self, mut payload: Vec<u8>) {
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if self.ignore_response {
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return;
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}
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self.data.append(&mut payload);
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let elem = self.elem.root();
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// https://html.spec.whatwg.org/multipage/#media-data-processing-steps-list
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// => "Once enough of the media data has been fetched to determine the duration..."
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if !self.have_metadata {
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self.check_metadata(&elem);
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} else {
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elem.change_ready_state(HAVE_CURRENT_DATA);
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}
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// https://html.spec.whatwg.org/multipage/#concept-media-load-resource step 4,
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// => "If mode is remote" step 2
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if time::get_time() > self.next_progress_event {
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let window = window_from_node(&*elem);
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window.dom_manipulation_task_source().queue_simple_event(
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elem.upcast(),
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atom!("progress"),
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&window,
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);
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self.next_progress_event = time::get_time() + Duration::milliseconds(350);
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}
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}
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// https://html.spec.whatwg.org/multipage/#media-data-processing-steps-list
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fn process_response_eof(&mut self, status: Result<(), NetworkError>) {
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let elem = self.elem.root();
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// => "If the media data can be fetched but is found by inspection to be in an unsupported
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// format, or can otherwise not be rendered at all"
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if !self.have_metadata {
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elem.queue_dedicated_media_source_failure_steps();
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}
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// => "Once the entire media resource has been fetched..."
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else if status.is_ok() {
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elem.change_ready_state(HAVE_ENOUGH_DATA);
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elem.upcast::<EventTarget>().fire_event(atom!("progress"));
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elem.network_state.set(NETWORK_IDLE);
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elem.upcast::<EventTarget>().fire_event(atom!("suspend"));
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}
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// => "If the connection is interrupted after some media data has been received..."
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else if elem.ready_state.get() != HAVE_NOTHING {
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// Step 2
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elem.error.set(Some(&*MediaError::new(&*window_from_node(&*elem),
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MEDIA_ERR_NETWORK)));
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// Step 3
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elem.network_state.set(NETWORK_IDLE);
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// TODO: Step 4 - update delay load flag
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// Step 5
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elem.upcast::<EventTarget>().fire_event(atom!("error"));
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} else {
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// => "If the media data cannot be fetched at all..."
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elem.queue_dedicated_media_source_failure_steps();
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}
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let document = document_from_node(&*elem);
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document.finish_load(LoadType::Media(self.url.clone()));
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}
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}
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impl PreInvoke for HTMLMediaElementContext {
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fn should_invoke(&self) -> bool {
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//TODO: finish_load needs to run at some point if the generation changes.
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self.elem.root().generation_id.get() == self.generation_id
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}
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}
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impl HTMLMediaElementContext {
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fn new(elem: &HTMLMediaElement, url: ServoUrl) -> HTMLMediaElementContext {
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HTMLMediaElementContext {
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elem: Trusted::new(elem),
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data: vec![],
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metadata: None,
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generation_id: elem.generation_id.get(),
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next_progress_event: time::get_time() + Duration::milliseconds(350),
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url: url,
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have_metadata: false,
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ignore_response: false,
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}
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}
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fn check_metadata(&mut self, elem: &HTMLMediaElement) {
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match audio_video_metadata::get_format_from_slice(&self.data) {
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Ok(audio_video_metadata::Metadata::Video(meta)) => {
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let dur = meta.audio.duration.unwrap_or(::std::time::Duration::new(0, 0));
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*elem.video.borrow_mut() = Some(VideoMedia {
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format: format!("{:?}", meta.format),
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duration: Duration::seconds(dur.as_secs() as i64) +
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Duration::nanoseconds(dur.subsec_nanos() as i64),
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width: meta.dimensions.width,
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height: meta.dimensions.height,
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video: meta.video.unwrap_or("".to_owned()),
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audio: meta.audio.audio,
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});
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// Step 6
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elem.change_ready_state(HAVE_METADATA);
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self.have_metadata = true;
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}
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_ => {}
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}
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}
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}
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