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-rw-r--r--components/script/dom/htmlimageelement.rs152
1 files changed, 67 insertions, 85 deletions
diff --git a/components/script/dom/htmlimageelement.rs b/components/script/dom/htmlimageelement.rs
index b5f20784c8e..052b622bb9f 100644
--- a/components/script/dom/htmlimageelement.rs
+++ b/components/script/dom/htmlimageelement.rs
@@ -43,7 +43,7 @@ use crate::dom::values::UNSIGNED_LONG_MAX;
use crate::dom::virtualmethods::VirtualMethods;
use crate::dom::window::Window;
use crate::fetch::create_a_potential_cors_request;
-use crate::image_listener::{add_cache_listener_for_element, ImageCacheListener};
+use crate::image_listener::{generate_cache_listener_for_element, ImageCacheListener};
use crate::microtask::{Microtask, MicrotaskRunnable};
use crate::network_listener::{self, NetworkListener, PreInvoke, ResourceTimingListener};
use crate::script_thread::ScriptThread;
@@ -54,13 +54,15 @@ use dom_struct::dom_struct;
use euclid::Point2D;
use html5ever::{LocalName, Prefix, QualName};
use ipc_channel::ipc;
+use ipc_channel::ipc::IpcSender;
use ipc_channel::router::ROUTER;
use mime::{self, Mime};
use msg::constellation_msg::PipelineId;
use net_traits::image::base::{Image, ImageMetadata};
-use net_traits::image_cache::UsePlaceholder;
-use net_traits::image_cache::{CanRequestImages, CorsStatus, ImageCache, ImageOrMetadataAvailable};
-use net_traits::image_cache::{ImageResponder, ImageResponse, ImageState, PendingImageId};
+use net_traits::image_cache::{
+ CanRequestImages, CorsStatus, ImageCache, ImageCacheResult, ImageOrMetadataAvailable,
+ ImageResponse, PendingImageId, PendingImageResponse, UsePlaceholder,
+};
use net_traits::request::{CorsSettings, Destination, Initiator, RequestBuilder};
use net_traits::{FetchMetadata, FetchResponseListener, FetchResponseMsg, NetworkError};
use net_traits::{ReferrerPolicy, ResourceFetchTiming, ResourceTimingType};
@@ -317,35 +319,27 @@ impl HTMLImageElement {
fn fetch_image(&self, img_url: &ServoUrl) {
let window = window_from_node(self);
let image_cache = window.image_cache();
- let response = image_cache.find_image_or_metadata(
- img_url.clone().into(),
+ let sender = generate_cache_listener_for_element(self);
+ let cache_result = image_cache.track_image(
+ img_url.clone(),
window.origin().immutable().clone(),
cors_setting_for_element(self.upcast()),
+ sender,
UsePlaceholder::Yes,
CanRequestImages::Yes,
);
- match response {
- Ok(ImageOrMetadataAvailable::ImageAvailable(image, url)) => {
- self.process_image_response(ImageResponse::Loaded(image, url));
- },
- Ok(ImageOrMetadataAvailable::MetadataAvailable(m)) => {
- self.process_image_response(ImageResponse::MetadataLoaded(m));
+ match cache_result {
+ ImageCacheResult::Available(ImageOrMetadataAvailable::ImageAvailable(image, url)) => {
+ self.process_image_response(ImageResponse::Loaded(image, url))
},
-
- Err(ImageState::Pending(id)) => {
- add_cache_listener_for_element(image_cache, id, self);
+ ImageCacheResult::Available(ImageOrMetadataAvailable::MetadataAvailable(m)) => {
+ self.process_image_response(ImageResponse::MetadataLoaded(m))
},
-
- Err(ImageState::LoadError) => {
- self.process_image_response(ImageResponse::None);
- },
-
- Err(ImageState::NotRequested(id)) => {
- add_cache_listener_for_element(image_cache, id, self);
- self.fetch_request(img_url, id);
- },
- }
+ ImageCacheResult::Pending(_) => (),
+ ImageCacheResult::ReadyForRequest(id) => self.fetch_request(img_url, id),
+ ImageCacheResult::LoadError => self.process_image_response(ImageResponse::None),
+ };
}
fn fetch_request(&self, img_url: &ServoUrl, id: PendingImageId) {
@@ -943,14 +937,13 @@ impl HTMLImageElement {
if let Some(src) = selected_source {
if let Ok(img_url) = base_url.join(&src) {
let image_cache = window.image_cache();
- let response = image_cache.find_image_or_metadata(
- img_url.clone().into(),
+ let response = image_cache.get_image(
+ img_url.clone(),
window.origin().immutable().clone(),
cors_setting_for_element(self.upcast()),
- UsePlaceholder::No,
- CanRequestImages::No,
);
- if let Ok(ImageOrMetadataAvailable::ImageAvailable(image, url)) = response {
+
+ if let Some(image) = response {
// Cancel any outstanding tasks that were queued before the src was
// set on this element.
self.generation.set(self.generation.get() + 1);
@@ -963,7 +956,7 @@ impl HTMLImageElement {
self.abort_request(State::CompletelyAvailable, ImageRequestPhase::Current);
self.abort_request(State::Unavailable, ImageRequestPhase::Pending);
let mut current_request = self.current_request.borrow_mut();
- current_request.final_url = Some(url);
+ current_request.final_url = Some(img_url.clone());
current_request.image = Some(image.clone());
current_request.metadata = Some(metadata);
// Step 6.3.6
@@ -1010,13 +1003,12 @@ impl HTMLImageElement {
/// Step 2-12 of https://html.spec.whatwg.org/multipage/#img-environment-changes
fn react_to_environment_changes_sync_steps(&self, generation: u32) {
// TODO reduce duplicacy of this code
- fn add_cache_listener_for_element(
- image_cache: Arc<dyn ImageCache>,
- id: PendingImageId,
+
+ fn generate_cache_listener_for_element(
elem: &HTMLImageElement,
selected_source: String,
selected_pixel_density: f64,
- ) {
+ ) -> IpcSender<PendingImageResponse> {
let trusted_node = Trusted::new(elem);
let (responder_sender, responder_receiver) = ipc::channel().unwrap();
@@ -1025,27 +1017,30 @@ impl HTMLImageElement {
.task_manager()
.networking_task_source_with_canceller();
let generation = elem.generation.get();
- ROUTER.add_route(responder_receiver.to_opaque(), Box::new(move |message| {
- debug!("Got image {:?}", message);
- // Return the image via a message to the script thread, which marks
- // the element as dirty and triggers a reflow.
- let element = trusted_node.clone();
- let image = message.to().unwrap();
- let selected_source_clone = selected_source.clone();
- let _ = task_source.queue_with_canceller(
- task!(process_image_response_for_environment_change: move || {
- let element = element.root();
- // Ignore any image response for a previous request that has been discarded.
- if generation == element.generation.get() {
- element.process_image_response_for_environment_change(image,
- USVString::from(selected_source_clone), generation, selected_pixel_density);
- }
- }),
- &canceller,
- );
- }));
+ ROUTER.add_route(
+ responder_receiver.to_opaque(),
+ Box::new(move |message| {
+ debug!("Got image {:?}", message);
+ // Return the image via a message to the script thread, which marks
+ // the element as dirty and triggers a reflow.
+ let element = trusted_node.clone();
+ let image = message.to().unwrap();
+ let selected_source_clone = selected_source.clone();
+ let _ = task_source.queue_with_canceller(
+ task!(process_image_response_for_environment_change: move || {
+ let element = element.root();
+ // Ignore any image response for a previous request that has been discarded.
+ if generation == element.generation.get() {
+ element.process_image_response_for_environment_change(image,
+ USVString::from(selected_source_clone), generation, selected_pixel_density);
+ }
+ }),
+ &canceller,
+ );
+ }),
+ );
- image_cache.add_listener(id, ImageResponder::new(responder_sender, id));
+ responder_sender
}
let elem = self.upcast::<Element>();
@@ -1099,25 +1094,32 @@ impl HTMLImageElement {
let window = window_from_node(self);
let image_cache = window.image_cache();
+
// Step 14
- let response = image_cache.find_image_or_metadata(
- img_url.clone().into(),
+ let sender = generate_cache_listener_for_element(
+ self,
+ selected_source.0.clone(),
+ selected_pixel_density,
+ );
+ let cache_result = image_cache.track_image(
+ img_url.clone(),
window.origin().immutable().clone(),
cors_setting_for_element(self.upcast()),
+ sender,
UsePlaceholder::No,
CanRequestImages::Yes,
);
- match response {
- Ok(ImageOrMetadataAvailable::ImageAvailable(_image, _url)) => {
+
+ match cache_result {
+ ImageCacheResult::Available(ImageOrMetadataAvailable::ImageAvailable(_image, _url)) => {
// Step 15
self.finish_reacting_to_environment_change(
selected_source,
generation,
selected_pixel_density,
- );
+ )
},
-
- Ok(ImageOrMetadataAvailable::MetadataAvailable(m)) => {
+ ImageCacheResult::Available(ImageOrMetadataAvailable::MetadataAvailable(m)) => {
self.process_image_response_for_environment_change(
ImageResponse::MetadataLoaded(m),
selected_source,
@@ -1125,18 +1127,7 @@ impl HTMLImageElement {
selected_pixel_density,
);
},
-
- Err(ImageState::Pending(id)) => {
- add_cache_listener_for_element(
- image_cache.clone(),
- id,
- self,
- selected_source.0,
- selected_pixel_density,
- );
- },
-
- Err(ImageState::LoadError) => {
+ ImageCacheResult::LoadError => {
self.process_image_response_for_environment_change(
ImageResponse::None,
selected_source,
@@ -1144,17 +1135,8 @@ impl HTMLImageElement {
selected_pixel_density,
);
},
-
- Err(ImageState::NotRequested(id)) => {
- add_cache_listener_for_element(
- image_cache,
- id,
- self,
- selected_source.0,
- selected_pixel_density,
- );
- self.fetch_request(&img_url, id);
- },
+ ImageCacheResult::ReadyForRequest(id) => self.fetch_request(&img_url, id),
+ ImageCacheResult::Pending(_) => (),
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-28 07:57:48 +0000