/*

 * Copyright (c) 2022, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#include <LibWeb/Bindings/Intrinsics.h>

#include <LibWeb/Bindings/WheelEventPrototype.h>

#include <LibWeb/HTML/EventNames.h>

#include <LibWeb/UIEvents/EventNames.h>

#include <LibWeb/UIEvents/KeyCode.h>

#include <LibWeb/UIEvents/WheelEvent.h>

#include <LibWeb/WebIDL/ExceptionOr.h>

namespace Web::UIEvents {

JS_DEFINE_ALLOCATOR(WheelEvent);

WheelEvent::WheelEvent(JS::Realm& realm, FlyString const& event_name, WheelEventInit const& event_init, double page_x, double page_y, double offset_x, double offset_y)

    : MouseEvent(realm, event_name, event_init, page_x, page_y, offset_x, offset_y)

    , m_delta_x(event_init.delta_x)

    , m_delta_y(event_init.delta_y)

    , m_delta_z(event_init.delta_z)

    , m_delta_mode(event_init.delta_mode)

{

}

WheelEvent::~WheelEvent() = default;

void WheelEvent::initialize(JS::Realm& realm)

{

    Base::initialize(realm);

    WEB_SET_PROTOTYPE_FOR_INTERFACE(WheelEvent);

}

JS::NonnullGCPtr<WheelEvent> WheelEvent::construct_impl(JS::Realm& realm, FlyString const& event_name, WheelEventInit const& wheel_event_init)

{

    return create(realm, event_name, wheel_event_init);

}

JS::NonnullGCPtr<WheelEvent> WheelEvent::create(JS::Realm& realm, FlyString const& event_name, WheelEventInit const& event_init, double page_x, double page_y, double offset_x, double offset_y)

{

    return realm.heap().allocate<WheelEvent>(realm, realm, event_name, event_init, page_x, page_y, offset_x, offset_y);

}

WebIDL::ExceptionOr<JS::NonnullGCPtr<WheelEvent>> WheelEvent::create_from_platform_event(JS::Realm& realm, FlyString const& event_name, CSSPixelPoint screen, CSSPixelPoint page, CSSPixelPoint client, CSSPixelPoint offset, double delta_x, double delta_y, unsigned button, unsigned buttons, unsigned modifiers)

{

    WheelEventInit event_init {};

    event_init.ctrl_key = modifiers & Mod_Ctrl;

    event_init.shift_key = modifiers & Mod_Shift;

    event_init.alt_key = modifiers & Mod_Alt;

    event_init.meta_key = modifiers & Mod_Super;

    event_init.screen_x = screen.x().to_double();

    event_init.screen_y = screen.y().to_double();

    event_init.client_x = client.x().to_double();

    event_init.client_y = client.y().to_double();

    event_init.button = button;

    event_init.buttons = buttons;

    event_init.delta_x = delta_x;

    event_init.delta_y = delta_y;

    event_init.delta_mode = WheelDeltaMode::DOM_DELTA_PIXEL;

    auto event = WheelEvent::create(realm, event_name, event_init, page.x().to_double(), page.y().to_double(), offset.x().to_double(), offset.y().to_double());

    event->set_is_trusted(true);

    event->set_bubbles(true);

    event->set_cancelable(true);

    event->set_composed(true);

    return event;

}

}