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LibWeb: Move mouse event and label logic from layout to painting tree

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Input events have nothing to do with layout, so let's not send them to
layout nodes.

The job of Paintable starts to become clear. It represents a paintable
item that can be rendered into the viewport, which means it can also
be targeted by the mouse cursor.
This commit is contained in:
Andreas Kling 2022-03-10 22:46:35 +01:00
parent ed84fbce47
commit cb0c5390ff
35 changed files with 560 additions and 429 deletions
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84
Userland/Libraries/LibWeb/Layout/CheckBox.cpp
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@ -4,10 +4,7 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGUI/Event.h>
#include <LibGfx/Font.h>
#include <LibGfx/Painter.h>
#include <LibGfx/StylePainter.h>
#include <LibWeb/HTML/BrowsingContext.h>
#include <LibWeb/HTML/HTMLInputElement.h>
#include <LibWeb/Layout/CheckBox.h>
@ -27,87 +24,6 @@ CheckBox::~CheckBox()
{
}
void CheckBox::handle_mousedown(Badge<EventHandler>, const Gfx::IntPoint&, unsigned button, unsigned)
{
if (button != GUI::MouseButton::Primary || !dom_node().enabled())
return;
m_being_pressed = true;
set_needs_display();
m_tracking_mouse = true;
browsing_context().event_handler().set_mouse_event_tracking_layout_node(this);
}
void CheckBox::handle_mouseup(Badge<EventHandler>, const Gfx::IntPoint& position, unsigned button, unsigned)
{
if (!m_tracking_mouse || button != GUI::MouseButton::Primary || !dom_node().enabled())
return;
// NOTE: Changing the checked state of the DOM node may run arbitrary JS, which could disappear this node.
NonnullRefPtr protect = *this;
bool is_inside_node_or_label = enclosing_int_rect(paint_box()->absolute_rect()).contains(position);
if (!is_inside_node_or_label)
is_inside_node_or_label = Label::is_inside_associated_label(*this, position);
if (is_inside_node_or_label) {
dom_node().did_click_checkbox({});
dom_node().set_checked(!dom_node().checked(), HTML::HTMLInputElement::ChangeSource::User);
}
m_being_pressed = false;
m_tracking_mouse = false;
browsing_context().event_handler().set_mouse_event_tracking_layout_node(nullptr);
}
void CheckBox::handle_mousemove(Badge<EventHandler>, const Gfx::IntPoint& position, unsigned, unsigned)
{
if (!m_tracking_mouse || !dom_node().enabled())
return;
bool is_inside_node_or_label = enclosing_int_rect(paint_box()->absolute_rect()).contains(position);
if (!is_inside_node_or_label)
is_inside_node_or_label = Label::is_inside_associated_label(*this, position);
if (m_being_pressed == is_inside_node_or_label)
return;
m_being_pressed = is_inside_node_or_label;
set_needs_display();
}
void CheckBox::handle_associated_label_mousedown(Badge<Label>)
{
if (!dom_node().enabled())
return;
m_being_pressed = true;
set_needs_display();
}
void CheckBox::handle_associated_label_mouseup(Badge<Label>)
{
if (!dom_node().enabled())
return;
// NOTE: Changing the checked state of the DOM node may run arbitrary JS, which could disappear this node.
NonnullRefPtr protect = *this;
dom_node().did_click_checkbox({});
dom_node().set_checked(!dom_node().checked(), HTML::HTMLInputElement::ChangeSource::User);
m_being_pressed = false;
}
void CheckBox::handle_associated_label_mousemove(Badge<Label>, bool is_inside_node_or_label)
{
if (m_being_pressed == is_inside_node_or_label || !dom_node().enabled())
return;
m_being_pressed = is_inside_node_or_label;
set_needs_display();
}
RefPtr<Painting::Paintable> CheckBox::create_paintable() const
{
return Painting::CheckBoxPaintable::create(*this);