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https://github.com/RGBCube/serenity
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cb0c5390ff
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.
136 lines
4.4 KiB
C++
136 lines
4.4 KiB
C++
/*
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* Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibGUI/Event.h>
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#include <LibGfx/StylePainter.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/HTML/BrowsingContext.h>
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#include <LibWeb/HTML/HTMLImageElement.h>
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#include <LibWeb/Layout/Label.h>
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#include <LibWeb/Layout/RadioButton.h>
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#include <LibWeb/Painting/RadioButtonPaintable.h>
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namespace Web::Painting {
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NonnullRefPtr<RadioButtonPaintable> RadioButtonPaintable::create(Layout::RadioButton const& layout_box)
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{
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return adopt_ref(*new RadioButtonPaintable(layout_box));
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}
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RadioButtonPaintable::RadioButtonPaintable(Layout::RadioButton const& layout_box)
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: LabelablePaintable(layout_box)
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{
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}
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Layout::RadioButton const& RadioButtonPaintable::layout_box() const
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{
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return static_cast<Layout::RadioButton const&>(layout_node());
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}
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Layout::RadioButton& RadioButtonPaintable::layout_box()
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{
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return static_cast<Layout::RadioButton&>(layout_node());
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}
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void RadioButtonPaintable::paint(PaintContext& context, PaintPhase phase) const
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{
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if (!is_visible())
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return;
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PaintableBox::paint(context, phase);
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if (phase == PaintPhase::Foreground)
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Gfx::StylePainter::paint_radio_button(context.painter(), enclosing_int_rect(absolute_rect()), context.palette(), layout_box().dom_node().checked(), m_being_pressed);
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}
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void RadioButtonPaintable::handle_mousedown(Badge<EventHandler>, const Gfx::IntPoint&, unsigned button, unsigned)
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{
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if (button != GUI::MouseButton::Primary || !layout_box().dom_node().enabled())
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return;
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m_being_pressed = true;
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set_needs_display();
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m_tracking_mouse = true;
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browsing_context().event_handler().set_mouse_event_tracking_layout_node(&layout_box());
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}
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void RadioButtonPaintable::handle_mouseup(Badge<EventHandler>, const Gfx::IntPoint& position, unsigned button, unsigned)
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{
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if (!m_tracking_mouse || button != GUI::MouseButton::Primary || !layout_box().dom_node().enabled())
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return;
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// NOTE: Changing the checked state of the DOM node may run arbitrary JS, which could disappear this node.
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NonnullRefPtr protect = *this;
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bool is_inside_node_or_label = enclosing_int_rect(absolute_rect()).contains(position);
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if (!is_inside_node_or_label)
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is_inside_node_or_label = Layout::Label::is_inside_associated_label(layout_box(), position);
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if (is_inside_node_or_label)
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set_checked_within_group();
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m_being_pressed = false;
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m_tracking_mouse = false;
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browsing_context().event_handler().set_mouse_event_tracking_layout_node(nullptr);
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}
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void RadioButtonPaintable::handle_mousemove(Badge<EventHandler>, const Gfx::IntPoint& position, unsigned, unsigned)
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{
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if (!m_tracking_mouse || !layout_box().dom_node().enabled())
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return;
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bool is_inside_node_or_label = enclosing_int_rect(absolute_rect()).contains(position);
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if (!is_inside_node_or_label)
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is_inside_node_or_label = Layout::Label::is_inside_associated_label(layout_box(), position);
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if (m_being_pressed == is_inside_node_or_label)
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return;
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m_being_pressed = is_inside_node_or_label;
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set_needs_display();
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}
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void RadioButtonPaintable::handle_associated_label_mousedown(Badge<Layout::Label>)
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{
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m_being_pressed = true;
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set_needs_display();
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}
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void RadioButtonPaintable::handle_associated_label_mouseup(Badge<Layout::Label>)
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{
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// NOTE: Changing the checked state of the DOM node may run arbitrary JS, which could disappear this node.
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NonnullRefPtr protect = *this;
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set_checked_within_group();
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m_being_pressed = false;
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}
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void RadioButtonPaintable::handle_associated_label_mousemove(Badge<Layout::Label>, bool is_inside_node_or_label)
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{
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if (m_being_pressed == is_inside_node_or_label)
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return;
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m_being_pressed = is_inside_node_or_label;
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set_needs_display();
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}
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void RadioButtonPaintable::set_checked_within_group()
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{
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if (layout_box().dom_node().checked())
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return;
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layout_box().dom_node().set_checked(true, HTML::HTMLInputElement::ChangeSource::User);
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String name = layout_box().dom_node().name();
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document().for_each_in_inclusive_subtree_of_type<HTML::HTMLInputElement>([&](auto& element) {
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if (element.checked() && (element.paintable() != this) && (element.name() == name))
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element.set_checked(false, HTML::HTMLInputElement::ChangeSource::User);
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return IterationDecision::Continue;
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});
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}
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}
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