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.
126 lines
3.9 KiB
C++
126 lines
3.9 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 <LibWeb/HTML/BrowsingContext.h>
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#include <LibWeb/HTML/HTMLImageElement.h>
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#include <LibWeb/Layout/ButtonBox.h>
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#include <LibWeb/Layout/Label.h>
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#include <LibWeb/Painting/ButtonPaintable.h>
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namespace Web::Painting {
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NonnullRefPtr<ButtonPaintable> ButtonPaintable::create(Layout::ButtonBox const& layout_box)
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{
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return adopt_ref(*new ButtonPaintable(layout_box));
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}
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ButtonPaintable::ButtonPaintable(Layout::ButtonBox const& layout_box)
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: LabelablePaintable(layout_box)
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{
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}
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Layout::ButtonBox const& ButtonPaintable::layout_box() const
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{
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return static_cast<Layout::ButtonBox const&>(layout_node());
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}
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Layout::ButtonBox& ButtonPaintable::layout_box()
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{
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return static_cast<Layout::ButtonBox&>(layout_node());
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}
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void ButtonPaintable::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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auto text_rect = enclosing_int_rect(absolute_rect());
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if (m_being_pressed)
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text_rect.translate_by(1, 1);
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context.painter().draw_text(text_rect, layout_box().dom_node().value(), layout_box().font(), Gfx::TextAlignment::Center, computed_values().color());
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}
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}
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void ButtonPaintable::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 ButtonPaintable::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: Handling the click may run arbitrary JS, which could disappear this node.
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NonnullRefPtr protected_this = *this;
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NonnullRefPtr protected_browsing_context = browsing_context();
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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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const_cast<Layout::ButtonBox&>(layout_box()).dom_node().did_click_button({});
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m_being_pressed = false;
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m_tracking_mouse = false;
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protected_browsing_context->event_handler().set_mouse_event_tracking_layout_node(nullptr);
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}
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void ButtonPaintable::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 ButtonPaintable::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 ButtonPaintable::handle_associated_label_mouseup(Badge<Layout::Label>)
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{
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// NOTE: Handling the click may run arbitrary JS, which could disappear this node.
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NonnullRefPtr protected_this = *this;
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NonnullRefPtr protected_browsing_context = browsing_context();
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layout_box().dom_node().did_click_button({});
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m_being_pressed = false;
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}
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void ButtonPaintable::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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}
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