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LibWeb: Implement the infrastructure necessary for requestIdleCallback

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This includes a bug fix for the event loop processing steps which has
not been merged yet: https://github.com/whatwg/html/pull/7768
This commit is contained in:
Simon Wanner 2022-03-31 21:55:01 +02:00 • committed by Linus Groh
parent 73da139cd7
commit 836d2ff259
6 changed files with 209 additions and 31 deletions
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13
Userland/Libraries/LibWeb/HTML/Window.h
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@ -24,6 +24,7 @@
namespace Web::HTML {
class RequestAnimationFrameCallback;
class IdleCallback;
class Window final
: public RefCounted<Window>
@ -58,6 +59,7 @@ public:
String prompt(String const&, String const&);
i32 request_animation_frame(NonnullOwnPtr<Bindings::CallbackType> js_callback);
void cancel_animation_frame(i32);
bool has_animation_frame_callbacks() const { return !m_request_animation_frame_callbacks.is_empty(); }
i32 set_timeout(Bindings::TimerHandler handler, i32 timeout, JS::MarkedVector<JS::Value> arguments);
i32 set_interval(Bindings::TimerHandler handler, i32 timeout, JS::MarkedVector<JS::Value> arguments);
@ -115,6 +117,8 @@ public:
String name() const;
void set_name(String const&);
void start_an_idle_period();
private:
explicit Window(DOM::Document&);
@ -127,6 +131,8 @@ private:
};
i32 run_timer_initialization_steps(Bindings::TimerHandler handler, i32 timeout, JS::MarkedVector<JS::Value> arguments, Repeat repeat, Optional<i32> previous_id = {});
void invoke_idle_callbacks();
// https://html.spec.whatwg.org/multipage/window-object.html#concept-document-window
WeakPtr<DOM::Document> m_associated_document;
@ -141,6 +147,13 @@ private:
RefPtr<DOM::Event> m_current_event;
HashMap<i32, NonnullRefPtr<RequestAnimationFrameCallback>> m_request_animation_frame_callbacks;
// https://w3c.github.io/requestidlecallback/#dfn-list-of-idle-request-callbacks
NonnullRefPtrVector<IdleCallback> m_idle_request_callbacks;
// https://w3c.github.io/requestidlecallback/#dfn-list-of-runnable-idle-callbacks
NonnullRefPtrVector<IdleCallback> m_runnable_idle_callbacks;
// https://w3c.github.io/requestidlecallback/#dfn-idle-callback-identifier
u32 m_idle_callback_identifier = 0;
};
void run_animation_frame_callbacks(DOM::Document&, double now);