LibWeb: Implement AbortSignal.abort()

This returns an AbortSignal that is already set as aborted.
Author: https://github.com/tcl3 Commit: 3b7c252175 Pull-request: https://github.com/SerenityOS/serenity/pull/23279 Reviewed-by: https://github.com/ADKaster Reviewed-by: https://github.com/kalenikaliaksandr
2025-07-31 21:29:06 +00:00 · 2024-02-20 20:51:29 +00:00 · 2024-02-20 20:51:29 +00:00 · 3b7c252175 · 2024-07-18 03:20:18 +09:00
commit 3b7c252175
parent fa95e5ec0e
5 changed files with 43 additions and 1 deletions
--- a/Userland/Libraries/LibWeb/DOM/AbortSignal.cpp
+++ b/Userland/Libraries/LibWeb/DOM/AbortSignal.cpp
@ -116,4 +116,20 @@ void AbortSignal::follow(JS::NonnullGCPtr<AbortSignal> parent_signal)
    });
 }

+// https://dom.spec.whatwg.org/#dom-abortsignal-abort
+WebIDL::ExceptionOr<JS::NonnullGCPtr<AbortSignal>> AbortSignal::abort(JS::VM& vm, JS::Value reason)
+{
+    // 1. Let signal be a new AbortSignal object.
+    auto signal = TRY(construct_impl(*vm.current_realm()));
+
+    // 2. Set signal’s abort reason to reason if it is given; otherwise to a new "AbortError" DOMException.
+    if (reason.is_undefined())
+        reason = WebIDL::AbortError::create(*vm.current_realm(), "Aborted without reason"_fly_string).ptr();
+
+    signal->set_reason(reason);
+
+    // 3. Return signal.
+    return signal;
+}
+
 }