eb3b8f8ee4
EventSource allows opening a persistent HTTP connection to a server over which events are continuously streamed. Unfortunately, our test infrastructure does not allow for automating any tests of this feature yet. It only works with HTTP connections.
100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
/*
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* Copyright (c) 2021-2024, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibJS/Heap/Cell.h>
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#include <LibJS/Heap/CellAllocator.h>
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#include <LibJS/SafeFunction.h>
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#include <LibWeb/Forward.h>
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namespace Web::HTML {
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struct UniqueTaskSource;
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class Task final : public JS::Cell {
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JS_CELL(Task, Cell);
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JS_DECLARE_ALLOCATOR(Task);
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public:
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// https://html.spec.whatwg.org/multipage/webappapis.html#generic-task-sources
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enum class Source {
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Unspecified,
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DOMManipulation,
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UserInteraction,
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Networking,
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HistoryTraversal,
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IdleTask,
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PostedMessage,
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Microtask,
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TimerTask,
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JavaScriptEngine,
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// https://html.spec.whatwg.org/multipage/webappapis.html#navigation-and-traversal-task-source
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NavigationAndTraversal,
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// https://w3c.github.io/FileAPI/#fileReadingTaskSource
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FileReading,
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// https://www.w3.org/TR/intersection-observer/#intersectionobserver-task-source
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IntersectionObserver,
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// https://w3c.github.io/performance-timeline/#dfn-performance-timeline-task-source
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PerformanceTimeline,
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// https://html.spec.whatwg.org/multipage/canvas.html#canvas-blob-serialisation-task-source
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CanvasBlobSerializationTask,
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// https://w3c.github.io/clipboard-apis/#clipboard-task-source
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Clipboard,
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// https://w3c.github.io/permissions/#permissions-task-source
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Permissions,
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// https://drafts.csswg.org/css-font-loading/#task-source
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FontLoading,
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// https://html.spec.whatwg.org/multipage/server-sent-events.html#remote-event-task-source
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RemoteEvent,
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// !!! IMPORTANT: Keep this field last!
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// This serves as the base value of all unique task sources.
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// Some elements, such as the HTMLMediaElement, must have a unique task source per instance.
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UniqueTaskSourceStart
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};
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static JS::NonnullGCPtr<Task> create(JS::VM&, Source, JS::GCPtr<DOM::Document const>, JS::NonnullGCPtr<JS::HeapFunction<void()>> steps);
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virtual ~Task() override;
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virtual void finalize() override;
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int id() const { return m_id; }
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Source source() const { return m_source; }
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void execute();
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DOM::Document const* document() const;
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bool is_runnable() const;
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private:
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Task(Source, JS::GCPtr<DOM::Document const>, JS::NonnullGCPtr<JS::HeapFunction<void()>> steps);
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virtual void visit_edges(Visitor&) override;
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int m_id { 0 };
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Source m_source { Source::Unspecified };
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JS::NonnullGCPtr<JS::HeapFunction<void()>> m_steps;
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JS::GCPtr<DOM::Document const> m_document;
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};
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struct UniqueTaskSource {
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UniqueTaskSource();
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~UniqueTaskSource();
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Task::Source const source;
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};
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}
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