LibWeb: Define steps to queue a media element task on a HTMLMediaElement

2 files changed, 16 insertions, 0 deletions

diff --git a/Userland/Libraries/LibWeb/HTML/HTMLMediaElement.cpp b/Userland/Libraries/LibWeb/HTML/HTMLMediaElement.cpp
index 2fea46c39a..a04a1fc6a7 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLMediaElement.cpp
+++ b/Userland/Libraries/LibWeb/HTML/HTMLMediaElement.cpp
@@ -25,6 +25,14 @@ JS::ThrowCompletionOr<void> HTMLMediaElement::initialize(JS::Realm& realm)
     return {};
 }
 
+// https://html.spec.whatwg.org/multipage/media.html#queue-a-media-element-task
+void HTMLMediaElement::queue_a_media_element_task(JS::SafeFunction<void()> steps)
+{
+    // To queue a media element task with a media element element and a series of steps steps, queue an element task on the media element's
+    // media element event task source given element and steps.
+    queue_an_element_task(media_element_event_task_source(), move(steps));
+}
+
 // https://html.spec.whatwg.org/multipage/media.html#dom-navigator-canplaytype
 Bindings::CanPlayTypeResult HTMLMediaElement::can_play_type(DeprecatedString const& type) const
 {
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLMediaElement.h b/Userland/Libraries/LibWeb/HTML/HTMLMediaElement.h
index 82d4307e1d..cd67e31fbb 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLMediaElement.h
+++ b/Userland/Libraries/LibWeb/HTML/HTMLMediaElement.h
@@ -6,6 +6,7 @@
 
 #pragma once
 
+#include <LibWeb/HTML/EventLoop/Task.h>
 #include <LibWeb/HTML/HTMLElement.h>
 
 namespace Web::HTML {
@@ -16,6 +17,8 @@ class HTMLMediaElement : public HTMLElement {
 public:
     virtual ~HTMLMediaElement() override;
 
+    void queue_a_media_element_task(JS::SafeFunction<void()> steps);
+
     enum class NetworkState : u16 {
         Empty,
         Idle,
@@ -35,6 +38,11 @@ protected:
     virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
 
 private:
+    Task::Source media_element_event_task_source() const { return m_media_element_event_task_source.source; }
+
+    // https://html.spec.whatwg.org/multipage/media.html#media-element-event-task-source
+    UniqueTaskSource m_media_element_event_task_source {};
+
     // https://html.spec.whatwg.org/multipage/media.html#dom-media-networkstate
     NetworkState m_network_state { NetworkState::Empty };
 };