ladybird/Userland/Libraries/LibWeb/Painting/TextPaintable.cpp
Aliaksandr Kalenik 31e5b5f5de LibWeb: Use paintable to represent event tracking node
The use of layout nodes likely predated the paintable tree, but now
there is no point in introducing another level of indirection.
2024-01-15 09:00:35 +01:00

70 lines
2.4 KiB
C++

/*
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/HTML/BrowsingContext.h>
#include <LibWeb/Layout/Label.h>
#include <LibWeb/Layout/LabelableNode.h>
#include <LibWeb/Page/EventHandler.h>
#include <LibWeb/Painting/TextPaintable.h>
namespace Web::Painting {
JS::NonnullGCPtr<TextPaintable> TextPaintable::create(Layout::TextNode const& layout_node)
{
return layout_node.heap().allocate_without_realm<TextPaintable>(layout_node);
}
TextPaintable::TextPaintable(Layout::TextNode const& layout_node)
: Paintable(layout_node)
{
}
bool TextPaintable::wants_mouse_events() const
{
return layout_node().first_ancestor_of_type<Layout::Label>();
}
DOM::Node* TextPaintable::mouse_event_target() const
{
if (auto* label = layout_node().first_ancestor_of_type<Layout::Label>()) {
if (auto* control = const_cast<Layout::Label*>(label)->labeled_control())
return &control->dom_node();
}
return nullptr;
}
TextPaintable::DispatchEventOfSameName TextPaintable::handle_mousedown(Badge<EventHandler>, CSSPixelPoint position, unsigned button, unsigned)
{
auto* label = layout_node().first_ancestor_of_type<Layout::Label>();
if (!label)
return DispatchEventOfSameName::No;
const_cast<Layout::Label*>(label)->handle_mousedown_on_label({}, position, button);
const_cast<HTML::BrowsingContext&>(browsing_context()).event_handler().set_mouse_event_tracking_paintable(this);
return DispatchEventOfSameName::Yes;
}
TextPaintable::DispatchEventOfSameName TextPaintable::handle_mouseup(Badge<EventHandler>, CSSPixelPoint position, unsigned button, unsigned)
{
auto* label = layout_node().first_ancestor_of_type<Layout::Label>();
if (!label)
return DispatchEventOfSameName::No;
const_cast<Layout::Label*>(label)->handle_mouseup_on_label({}, position, button);
const_cast<HTML::BrowsingContext&>(browsing_context()).event_handler().set_mouse_event_tracking_paintable(nullptr);
return DispatchEventOfSameName::Yes;
}
TextPaintable::DispatchEventOfSameName TextPaintable::handle_mousemove(Badge<EventHandler>, CSSPixelPoint position, unsigned button, unsigned)
{
auto* label = layout_node().first_ancestor_of_type<Layout::Label>();
if (!label)
return DispatchEventOfSameName::No;
const_cast<Layout::Label*>(label)->handle_mousemove_on_label({}, position, button);
return DispatchEventOfSameName::Yes;
}
}