ladybird/Libraries/LibWeb/DOM/Window.h

/*
 * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include <AK/Badge.h>
#include <AK/IDAllocator.h>
#include <AK/RefCounted.h>
#include <AK/RefPtr.h>
#include <LibWeb/Bindings/WindowObject.h>
#include <LibWeb/Bindings/Wrappable.h>
#include <LibWeb/DOM/Event.h>
#include <LibWeb/DOM/EventTarget.h>

namespace Web::DOM {

class Window final
    : public RefCounted<Window>
    , public EventTarget {
public:
    static NonnullRefPtr<Window> create_with_document(Document&);
    ~Window();

    using RefCounted::ref;
    using RefCounted::unref;

    virtual void ref_event_target() override { RefCounted::ref(); }
    virtual void unref_event_target() override { RefCounted::unref(); }
    virtual bool dispatch_event(NonnullRefPtr<Event>) override;
    virtual Bindings::EventTargetWrapper* create_wrapper(JS::GlobalObject&) override;

    const Document& document() const { return m_document; }
    Document& document() { return m_document; }

    void alert(const String&);
    bool confirm(const String&);
    i32 request_animation_frame(JS::Function&);
    void cancel_animation_frame(i32);

    i32 set_timeout(JS::Function&, i32);
    i32 set_interval(JS::Function&, i32);
    void clear_timeout(i32);
    void clear_interval(i32);

    void did_set_location_href(Badge<Bindings::LocationObject>, const URL& new_href);
    void did_call_location_reload(Badge<Bindings::LocationObject>);

    Bindings::WindowObject* wrapper() { return m_wrapper; }
    const Bindings::WindowObject* wrapper() const { return m_wrapper; }

    void set_wrapper(Badge<Bindings::WindowObject>, Bindings::WindowObject&);

    i32 allocate_timer_id(Badge<Timer>);
    void deallocate_timer_id(Badge<Timer>, i32);
    void timer_did_fire(Badge<Timer>, Timer&);

    HighResolutionTime::Performance& performance() { return *m_performance; }

    const Event* current_event() const { return m_current_event; }
    void set_current_event(Event* event) { m_current_event = event; }

private:
    explicit Window(Document&);

    Document& m_document;
    WeakPtr<Bindings::WindowObject> m_wrapper;

    IDAllocator m_timer_id_allocator;
    HashMap<int, NonnullRefPtr<Timer>> m_timers;

    NonnullOwnPtr<HighResolutionTime::Performance> m_performance;
    RefPtr<Event> m_current_event;
};

}