mirror of
https://github.com/servo/servo.git
synced 2025-08-05 05:30:08 +01:00
Add more specification step comments and update to the latest specification.
This commit is contained in:
Josh Matthews
parent
99f6fb34fc
commit
f16c05423c
2 changed files with 136 additions and 47 deletions
|
|
@ -10,6 +10,7 @@ use dom::bindings::codegen::Bindings::HTMLMediaElementBinding::CanPlayTypeResult
|
|||
use dom::bindings::codegen::Bindings::HTMLMediaElementBinding::HTMLMediaElementConstants::*;
|
||||
use dom::bindings::codegen::Bindings::HTMLMediaElementBinding::HTMLMediaElementMethods;
|
||||
use dom::bindings::codegen::Bindings::MediaErrorBinding::MediaErrorConstants::*;
|
||||
use dom::bindings::codegen::Bindings::MediaErrorBinding::MediaErrorMethods;
|
||||
use dom::bindings::global::GlobalRef;
|
||||
use dom::bindings::inheritance::Castable;
|
||||
use dom::bindings::js::{Root, MutNullableHeap, JS};
|
||||
|
|
@ -31,8 +32,8 @@ use script_thread::{Runnable, ScriptThread};
|
|||
use std::cell::Cell;
|
||||
use std::sync::{Arc, Mutex};
|
||||
use string_cache::Atom;
|
||||
use task_source::dom_manipulation::DOMManipulationTask;
|
||||
use task_source::TaskSource;
|
||||
use task_source::dom_manipulation::DOMManipulationTask;
|
||||
use time::{self, Timespec, Duration};
|
||||
use url::Url;
|
||||
use util::str::DOMString;
|
||||
|
|
@ -56,7 +57,6 @@ struct HTMLMediaElementContext {
|
|||
ignore_response: bool,
|
||||
}
|
||||
|
||||
// https://html.spec.whatwg.org/multipage/#media-data-processing-steps-list
|
||||
impl AsyncResponseListener for HTMLMediaElementContext {
|
||||
// https://html.spec.whatwg.org/multipage/#media-data-processing-steps-list
|
||||
fn headers_available(&mut self, metadata: Result<Metadata, NetworkError>) {
|
||||
|
|
@ -87,14 +87,20 @@ impl AsyncResponseListener for HTMLMediaElementContext {
|
|||
|
||||
let elem = self.elem.root();
|
||||
|
||||
// https://html.spec.whatwg.org/multipage/#media-data-processing-steps-list
|
||||
// => "Once enough of the media data has been fetched to determine the duration..."
|
||||
if !self.have_metadata {
|
||||
//TODO: actually check if the payload contains the full metadata
|
||||
|
||||
// Step 6
|
||||
elem.change_ready_state(HAVE_METADATA);
|
||||
self.have_metadata = true;
|
||||
} else {
|
||||
elem.change_ready_state(HAVE_CURRENT_DATA);
|
||||
}
|
||||
|
||||
// https://html.spec.whatwg.org/multipage/#concept-media-load-resource step 4,
|
||||
// => "If mode is remote" step 2
|
||||
if time::get_time() > self.next_progress_event {
|
||||
elem.queue_fire_simple_event("progress");
|
||||
self.next_progress_event = time::get_time() + Duration::milliseconds(350);
|
||||
|
|
@ -105,6 +111,7 @@ impl AsyncResponseListener for HTMLMediaElementContext {
|
|||
fn response_complete(&mut self, status: Result<(), NetworkError>) {
|
||||
let elem = self.elem.root();
|
||||
|
||||
// => "Once the entire media resource has been fetched..."
|
||||
if status.is_ok() {
|
||||
elem.change_ready_state(HAVE_ENOUGH_DATA);
|
||||
|
||||
|
|
@ -113,16 +120,23 @@ impl AsyncResponseListener for HTMLMediaElementContext {
|
|||
elem.network_state.set(NETWORK_IDLE);
|
||||
|
||||
elem.fire_simple_event("suspend");
|
||||
} else if elem.ready_state.get() != HAVE_NOTHING {
|
||||
}
|
||||
// => "If the connection is interrupted after some media data has been received..."
|
||||
else if elem.ready_state.get() != HAVE_NOTHING {
|
||||
// Step 2
|
||||
elem.error.set(Some(&*MediaError::new(&*window_from_node(&*elem),
|
||||
MEDIA_ERR_NETWORK)));
|
||||
|
||||
// Step 3
|
||||
elem.network_state.set(NETWORK_IDLE);
|
||||
|
||||
// TODO: update delay load flag
|
||||
// TODO: Step 4 - update delay load flag
|
||||
|
||||
// Step 5
|
||||
elem.fire_simple_event("error");
|
||||
} else {
|
||||
}
|
||||
// => "If the media data cannot be fetched at all..."
|
||||
else {
|
||||
elem.queue_dedicated_media_source_failure_steps();
|
||||
}
|
||||
|
||||
|
|
@ -189,7 +203,7 @@ impl HTMLMediaElement {
|
|||
&self.htmlelement
|
||||
}
|
||||
|
||||
// https://html.spec.whatwg.org/multipage/#playing-the-media-resource:internal-pause-steps
|
||||
// https://html.spec.whatwg.org/multipage/#internal-pause-steps
|
||||
fn internal_pause_steps(&self) {
|
||||
// Step 1
|
||||
self.autoplaying.set(false);
|
||||
|
|
@ -200,17 +214,63 @@ impl HTMLMediaElement {
|
|||
self.paused.set(true);
|
||||
|
||||
// 2.2
|
||||
self.queue_fire_simple_event("timeupdate");
|
||||
self.queue_internal_pause_steps_task();
|
||||
|
||||
// 2.3
|
||||
self.queue_fire_simple_event("pause");
|
||||
|
||||
// TODO 2.4 (official playback position)
|
||||
// TODO 2.3 (official playback position)
|
||||
}
|
||||
|
||||
// TODO step 3 (media controller)
|
||||
}
|
||||
|
||||
// https://html.spec.whatwg.org/multipage/#notify-about-playing
|
||||
fn notify_about_playing(&self) {
|
||||
// Step 1
|
||||
self.fire_simple_event("playing");
|
||||
// TODO Step 2
|
||||
}
|
||||
|
||||
fn queue_notify_about_playing(&self) {
|
||||
struct Task {
|
||||
elem: Trusted<HTMLMediaElement>,
|
||||
}
|
||||
|
||||
impl Runnable for Task {
|
||||
fn handler(self: Box<Task>) {
|
||||
self.elem.root().notify_about_playing();
|
||||
}
|
||||
}
|
||||
|
||||
let task = Task {
|
||||
elem: Trusted::new(self),
|
||||
};
|
||||
let win = window_from_node(self);
|
||||
let _ = win.dom_manipulation_task_source().queue(DOMManipulationTask::MediaTask(box task));
|
||||
}
|
||||
|
||||
// https://html.spec.whatwg.org/multipage/#internal-pause-steps step 2.2
|
||||
fn queue_internal_pause_steps_task(&self) {
|
||||
struct Task {
|
||||
elem: Trusted<HTMLMediaElement>,
|
||||
}
|
||||
|
||||
impl Runnable for Task {
|
||||
fn handler(self: Box<Task>) {
|
||||
let elem = self.elem.root();
|
||||
// 2.2.1
|
||||
elem.fire_simple_event("timeupdate");
|
||||
// 2.2.2
|
||||
elem.fire_simple_event("pause");
|
||||
// TODO 2.2.3
|
||||
}
|
||||
}
|
||||
|
||||
let task = Task {
|
||||
elem: Trusted::new(self),
|
||||
};
|
||||
let win = window_from_node(self);
|
||||
let _ = win.dom_manipulation_task_source().queue(DOMManipulationTask::MediaTask(box task));
|
||||
}
|
||||
|
||||
fn queue_fire_simple_event(&self, type_: &'static str) {
|
||||
let win = window_from_node(self);
|
||||
let task = FireSimpleEventTask::new(self, type_);
|
||||
|
|
@ -235,6 +295,7 @@ impl HTMLMediaElement {
|
|||
return;
|
||||
}
|
||||
|
||||
// Step 1
|
||||
match (old_ready_state, ready_state) {
|
||||
// previous ready state was HAVE_NOTHING, and the new ready state is
|
||||
// HAVE_METADATA
|
||||
|
|
@ -267,6 +328,7 @@ impl HTMLMediaElement {
|
|||
_ => (),
|
||||
}
|
||||
|
||||
// Step 1
|
||||
// If the new ready state is HAVE_FUTURE_DATA or HAVE_ENOUGH_DATA,
|
||||
// then the relevant steps below must then be run also.
|
||||
match (old_ready_state, ready_state) {
|
||||
|
|
@ -277,8 +339,9 @@ impl HTMLMediaElement {
|
|||
(HAVE_NOTHING, HAVE_FUTURE_DATA) => {
|
||||
self.queue_fire_simple_event("canplay");
|
||||
|
||||
// TODO: check paused state
|
||||
self.queue_fire_simple_event("playing");
|
||||
if !self.Paused() {
|
||||
self.queue_notify_about_playing();
|
||||
}
|
||||
}
|
||||
|
||||
// new ready state is HAVE_ENOUGH_DATA
|
||||
|
|
@ -287,17 +350,23 @@ impl HTMLMediaElement {
|
|||
self.queue_fire_simple_event("canplay");
|
||||
|
||||
if !self.Paused() {
|
||||
self.queue_fire_simple_event("playing");
|
||||
self.queue_notify_about_playing();
|
||||
}
|
||||
}
|
||||
|
||||
//TODO: check sandboxed automatic features browsing context flag
|
||||
if self.autoplaying.get() &&
|
||||
self.Paused() &&
|
||||
self.Autoplay() {
|
||||
// Step 1
|
||||
self.paused.set(false);
|
||||
// TODO: show poster
|
||||
// TODO step 2: show poster
|
||||
// Step 3
|
||||
self.queue_fire_simple_event("play");
|
||||
self.queue_fire_simple_event("playing");
|
||||
// Step 4
|
||||
self.queue_notify_about_playing();
|
||||
// Step 5
|
||||
self.autoplaying.set(false);
|
||||
}
|
||||
|
||||
self.queue_fire_simple_event("canplaythrough");
|
||||
|
|
@ -305,6 +374,8 @@ impl HTMLMediaElement {
|
|||
|
||||
_ => (),
|
||||
}
|
||||
|
||||
// TODO Step 2: media controller
|
||||
}
|
||||
|
||||
// https://html.spec.whatwg.org/multipage/#concept-media-load-algorithm
|
||||
|
|
@ -447,7 +518,8 @@ impl HTMLMediaElement {
|
|||
// Step 5
|
||||
self.fire_simple_event("error");
|
||||
|
||||
// TODO step 6 (delay load event)
|
||||
// TODO step 6 (resolve pending play promises)
|
||||
// TODO step 7 (delay load event)
|
||||
}
|
||||
|
||||
// https://html.spec.whatwg.org/multipage/#media-element-load-algorithm
|
||||
|
|
@ -458,15 +530,12 @@ impl HTMLMediaElement {
|
|||
|
||||
// Step 2
|
||||
self.generation_id.set(self.generation_id.get() + 1);
|
||||
// TODO reject pending play promises
|
||||
|
||||
// Step 3
|
||||
let network_state = self.NetworkState();
|
||||
match network_state {
|
||||
NETWORK_LOADING |
|
||||
NETWORK_IDLE => {
|
||||
self.queue_fire_simple_event("abort");
|
||||
}
|
||||
_ => (),
|
||||
if network_state == NETWORK_LOADING || network_state == NETWORK_IDLE {
|
||||
self.queue_fire_simple_event("abort");
|
||||
}
|
||||
|
||||
// Step 4
|
||||
|
|
@ -476,18 +545,22 @@ impl HTMLMediaElement {
|
|||
|
||||
// TODO 4.2 (abort in-progress fetch)
|
||||
|
||||
// TODO 4.3 (forget resource tracks)
|
||||
// TODO 4.3 (detach media provider object)
|
||||
// TODO 4.4 (forget resource tracks)
|
||||
|
||||
// 4.4
|
||||
self.change_ready_state(HAVE_NOTHING);
|
||||
// 4.5
|
||||
if self.ready_state.get() != HAVE_NOTHING {
|
||||
self.change_ready_state(HAVE_NOTHING);
|
||||
}
|
||||
|
||||
// 4.6
|
||||
if !self.Paused() {
|
||||
self.paused.set(true);
|
||||
}
|
||||
// TODO 4.6 (seeking)
|
||||
// TODO 4.7 (playback position)
|
||||
// TODO 4.8 (timeline offset)
|
||||
// TODO 4.9 (duration)
|
||||
// TODO 4.7 (seeking)
|
||||
// TODO 4.8 (playback position)
|
||||
// TODO 4.9 (timeline offset)
|
||||
// TODO 4.10 (duration)
|
||||
}
|
||||
|
||||
// TODO step 5 (playback rate)
|
||||
|
|
@ -552,40 +625,57 @@ impl HTMLMediaElementMethods for HTMLMediaElement {
|
|||
|
||||
// https://html.spec.whatwg.org/multipage/#dom-media-play
|
||||
fn Play(&self) {
|
||||
// Step 1
|
||||
// TODO step 1
|
||||
|
||||
// Step 2
|
||||
if self.error.get().map_or(false, |e| e.Code() == MEDIA_ERR_SRC_NOT_SUPPORTED) {
|
||||
// TODO return rejected promise
|
||||
return;
|
||||
}
|
||||
|
||||
// TODO step 3
|
||||
|
||||
// Step 4
|
||||
if self.network_state.get() == NETWORK_EMPTY {
|
||||
self.invoke_resource_selection_algorithm();
|
||||
}
|
||||
|
||||
// TODO step 2 (seek backwards)
|
||||
// TODO step 5 (seek backwards)
|
||||
|
||||
// TODO step 3 (media controller)
|
||||
// TODO step 6 (media controller)
|
||||
|
||||
// Step 4
|
||||
let state = self.ready_state.get();
|
||||
|
||||
// Step 7
|
||||
if self.Paused() {
|
||||
// 4.1
|
||||
// 7.1
|
||||
self.paused.set(false);
|
||||
|
||||
// TODO 4.2 (show poster)
|
||||
// TODO 7.2 (show poster)
|
||||
|
||||
// 4.3
|
||||
// 7.3
|
||||
self.queue_fire_simple_event("play");
|
||||
|
||||
// 4.4
|
||||
let state = self.ready_state.get();
|
||||
// 7.4
|
||||
if state == HAVE_NOTHING ||
|
||||
state == HAVE_METADATA ||
|
||||
state == HAVE_CURRENT_DATA {
|
||||
self.queue_fire_simple_event("waiting");
|
||||
} else {
|
||||
self.queue_fire_simple_event("playing");
|
||||
self.queue_notify_about_playing();
|
||||
}
|
||||
|
||||
// 4.5
|
||||
self.autoplaying.set(false);
|
||||
|
||||
// TODO 4.6 (media controller)
|
||||
}
|
||||
// Step 8
|
||||
else if state == HAVE_FUTURE_DATA || state == HAVE_ENOUGH_DATA {
|
||||
// TODO resolve pending play promises
|
||||
}
|
||||
|
||||
// Step 9
|
||||
self.autoplaying.set(false);
|
||||
|
||||
// TODO step 10 (media controller)
|
||||
|
||||
// TODO return promise
|
||||
}
|
||||
|
||||
// https://html.spec.whatwg.org/multipage/#dom-media-pause
|
||||
|
|
@ -623,7 +713,7 @@ impl VirtualMethods for HTMLMediaElement {
|
|||
};
|
||||
}
|
||||
|
||||
// https://html.spec.whatwg.org/multipage/#playing-the-media-resource:media-element-75
|
||||
// https://html.spec.whatwg.org/multipage/#playing-the-media-resource:remove-an-element-from-a-document
|
||||
fn unbind_from_tree(&self, context: &UnbindContext) {
|
||||
self.super_type().unwrap().unbind_from_tree(context);
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue