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834202aeb9
This needs to happen before prototype/constructor intitialization can be made lazy. Otherwise, GC could run during the C++ constructor and try to collect the object currently being created.
56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
/*
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* Copyright (c) 2022, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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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 <LibWeb/UIEvents/MouseEvent.h>
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#include <LibWeb/UIEvents/UIEvent.h>
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namespace Web::UIEvents {
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enum class WheelDeltaMode : unsigned long {
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DOM_DELTA_PIXEL = 0,
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DOM_DELTA_LINE = 1,
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DOM_DELTA_PAGE = 2,
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};
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struct WheelEventInit : public MouseEventInit {
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double delta_x = 0;
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double delta_y = 0;
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double delta_z = 0;
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WheelDeltaMode delta_mode = WheelDeltaMode::DOM_DELTA_PIXEL;
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};
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class WheelEvent final : public MouseEvent {
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WEB_PLATFORM_OBJECT(WheelEvent, MouseEvent);
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public:
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static WheelEvent* create(JS::Realm&, DeprecatedFlyString const& event_name, WheelEventInit const& event_init = {});
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static WheelEvent* create_from_platform_event(JS::Realm&, DeprecatedFlyString const& event_name, CSSPixels offset_x, CSSPixels offset_y, CSSPixels client_x, CSSPixels client_y, double delta_x, double delta_y, unsigned buttons, unsigned button);
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virtual ~WheelEvent() override;
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double delta_x() const { return m_delta_x; }
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double delta_y() const { return m_delta_y; }
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double delta_z() const { return m_delta_z; }
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unsigned long delta_mode() const { return to_underlying(m_delta_mode); }
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private:
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WheelEvent(JS::Realm&, DeprecatedFlyString const& event_name, WheelEventInit const& event_init);
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virtual void initialize(JS::Realm&) override;
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void set_event_characteristics();
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double m_delta_x { 0 };
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double m_delta_y { 0 };
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double m_delta_z { 0 };
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WheelDeltaMode m_delta_mode { WheelDeltaMode::DOM_DELTA_PIXEL };
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};
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}
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