Auto merge of #24044 - Eijebong:img-element-spec-update, r=jdm

Remove <img>'s historical progress events

Fixes #24011

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components/script/dom/htmlimageelement.rs

@@ -22,7 +22,7 @@ use crate::dom::bindings::str::{DOMString, USVString};
 use crate::dom::document::Document;
 use crate::dom::element::{reflect_cross_origin_attribute, set_cross_origin_attribute};
 use crate::dom::element::{AttributeMutation, Element, RawLayoutElementHelpers};
-use crate::dom::event::{Event, EventBubbles, EventCancelable};
+use crate::dom::event::Event;
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::htmlareaelement::HTMLAreaElement;
@@ -37,7 +37,6 @@ use crate::dom::node::{
     document_from_node, window_from_node, BindContext, Node, NodeDamage, ShadowIncluding,
 };
 use crate::dom::performanceresourcetiming::InitiatorType;
-use crate::dom::progressevent::ProgressEvent;
 use crate::dom::values::UNSIGNED_LONG_MAX;
 use crate::dom::virtualmethods::VirtualMethods;
 use crate::dom::window::Window;
@@ -809,26 +808,7 @@ impl HTMLImageElement {
                 return;
             },
         };
-        // Step 10.
-        let target = Trusted::new(self.upcast::<EventTarget>());
-        // FIXME(nox): Why are errors silenced here?
-        let _ = task_source.queue(
-            task!(fire_progress_event: move || {
-                let target = target.root();
 
-                let event = ProgressEvent::new(
-                    &target.global(),
-                    atom!("loadstart"),
-                    EventBubbles::DoesNotBubble,
-                    EventCancelable::NotCancelable,
-                    false,
-                    0,
-                    0,
-                );
-                event.upcast::<Event>().fire(&target);
-            }),
-            window.upcast(),
-        );
         // Step 11
         let base_url = document.base_url();
         let parsed_url = base_url.join(&src.0);
@@ -850,7 +830,6 @@ impl HTMLImageElement {
                             current_request.source_url = Some(USVString(src))
                         }
                         this.upcast::<EventTarget>().fire_event(atom!("error"));
-                        this.upcast::<EventTarget>().fire_event(atom!("loadend"));
 
                         // FIXME(nox): According to the spec, setting the current
                         // request to the broken state is done prior to queuing a

tests/wpt/metadata/MANIFEST.json

@@ -640951,7 +640951,7 @@
    "support"
   ],
   "html/semantics/embedded-content/the-img-element/invalid-src.html": [
-   "c3c57ee3c0a05019be4db6650eeefdd53648401e",
+   "37ea8ce754a3feaa3e305f10899632d231c92363",
    "testharness"
   ],
   "html/semantics/embedded-content/the-img-element/ismap/img-ismap-coordinates-iframe-after.html": [

tests/wpt/metadata/html/semantics/embedded-content/the-img-element/historical-progress-event.window.js.ini

@@ -1,4 +0,0 @@
-[historical-progress-event.window.html]
-  [<img> does not support ProgressEvent or loadstart/progress/loadend]
-    expected: FAIL
-

tests/wpt/web-platform-tests/html/semantics/embedded-content/the-img-element/invalid-src.html

@@ -9,41 +9,23 @@
 async_test(function(t) {
     var img = document.getElementById("brokenurl");
     img.src = "http://[";
-    var errorevent = false;
-    var loadendevent = false;
 
     // The errors should be queued in the event loop, so they should only trigger
     // after this block of code finishes, not during the img.src setter itself
     img.addEventListener('error', t.step_func(function() {
-        assert_false(loadendevent, "loadend should fire after error");
+        t.step_timeout(t.step_func_done(), 0);
-        errorevent = true;
-        t.step_timeout(t.step_func_done(function() {
-            assert_true(loadendevent, "loadend event fired");
-        }), 0);
-    }));
-    img.addEventListener('loadend', t.step_func(function() {
-        assert_true(errorevent, "error event fired");
-        loadendevent = true;
     }));
 }, 'src="http://["');
 
 async_test(function(t) {
     var img = document.getElementById("emptysrc");
     img.src = "";
-    var loadendevent = false;
 
     // Setting src to empty string triggers only error event.
     // The errors should be queued in the event loop, so they should only trigger
     // after this block of code finishes, not during the img.src setter itself
     img.addEventListener('error', t.step_func(function() {
-        // Queue this check in the event loop to check there is no loadend event
+        t.step_timeout(t.step_func_done(), 0);
-        // fired.
-        t.step_timeout(t.step_func_done(function() {
-            assert_false(loadendevent, "loadend event should not be fired");
-        }), 0);
-    }));
-    img.addEventListener('loadend', t.step_func(function() {
-        loadendevent = true;
     }));
 }, 'src=""');