ladybird/Libraries/LibWeb/Page/DragAndDropEventHandler.h
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

68 lines
2.7 KiB
C++

/*
* Copyright (c) 2024, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGC/Ptr.h>
#include <LibJS/Heap/Cell.h>
#include <LibWeb/Forward.h>
#include <LibWeb/HTML/DragDataStore.h>
#include <LibWeb/Page/EventResult.h>
#include <LibWeb/PixelUnits.h>
namespace Web {
class DragAndDropEventHandler {
public:
void visit_edges(JS::Cell::Visitor& visitor) const;
bool has_ongoing_drag_and_drop_operation() const { return !m_drag_data_store.is_null(); }
EventResult handle_drag_start(JS::Realm&, CSSPixelPoint screen_position, CSSPixelPoint page_offset, CSSPixelPoint client_offset, CSSPixelPoint offset, unsigned button, unsigned buttons, unsigned modifiers, Vector<HTML::SelectedFile> files);
EventResult handle_drag_move(JS::Realm&, GC::Ref<DOM::Document>, GC::Ref<DOM::Node>, CSSPixelPoint screen_position, CSSPixelPoint page_offset, CSSPixelPoint client_offset, CSSPixelPoint offset, unsigned button, unsigned buttons, unsigned modifiers);
EventResult handle_drag_leave(JS::Realm&, CSSPixelPoint screen_position, CSSPixelPoint page_offset, CSSPixelPoint client_offset, CSSPixelPoint offset, unsigned button, unsigned buttons, unsigned modifiers);
EventResult handle_drop(JS::Realm&, CSSPixelPoint screen_position, CSSPixelPoint page_offset, CSSPixelPoint client_offset, CSSPixelPoint offset, unsigned button, unsigned buttons, unsigned modifiers);
private:
enum class Cancelled {
No,
Yes,
};
EventResult handle_drag_end(JS::Realm&, Cancelled, CSSPixelPoint screen_position, CSSPixelPoint page_offset, CSSPixelPoint client_offset, CSSPixelPoint offset, unsigned button, unsigned buttons, unsigned modifiers);
GC::Ref<HTML::DragEvent> fire_a_drag_and_drop_event(
JS::Realm&,
GC::Ptr<DOM::EventTarget> target,
FlyString const& name,
CSSPixelPoint screen_position,
CSSPixelPoint page_offset,
CSSPixelPoint client_offset,
CSSPixelPoint offset,
unsigned button,
unsigned buttons,
unsigned modifiers,
GC::Ptr<DOM::EventTarget> related_target = nullptr);
bool allow_text_drop(GC::Ref<DOM::Node>) const;
void reset();
RefPtr<HTML::DragDataStore> m_drag_data_store;
// https://html.spec.whatwg.org/multipage/dnd.html#source-node
GC::Ptr<DOM::EventTarget> m_source_node;
// https://html.spec.whatwg.org/multipage/dnd.html#immediate-user-selection
GC::Ptr<DOM::Node> m_immediate_user_selection;
// https://html.spec.whatwg.org/multipage/dnd.html#current-target-element
GC::Ptr<DOM::Node> m_current_target_element;
// https://html.spec.whatwg.org/multipage/dnd.html#current-drag-operation
FlyString m_current_drag_operation;
};
}