ca71ac484b
This is because it includes the initial node that the function was called on, which makes it "inclusive" as according to the spec. This is important as there are non-inclusive variants, particularly used in the node mutation algorithms.
149 lines
5 KiB
C++
149 lines
5 KiB
C++
/*
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* Copyright (c) 2021, Tim Flynn <trflynn89@pm.me>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibGUI/Event.h>
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#include <LibGfx/Painter.h>
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#include <LibGfx/StylePainter.h>
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#include <LibWeb/DOM/Document.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/Page/Frame.h>
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namespace Web::Layout {
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RadioButton::RadioButton(DOM::Document& document, HTML::HTMLInputElement& element, NonnullRefPtr<CSS::StyleProperties> style)
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: LabelableNode(document, element, move(style))
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{
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set_has_intrinsic_width(true);
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set_has_intrinsic_height(true);
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set_intrinsic_width(12);
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set_intrinsic_height(12);
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}
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RadioButton::~RadioButton()
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{
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}
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void RadioButton::paint(PaintContext& context, PaintPhase phase)
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{
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if (!is_visible())
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return;
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LabelableNode::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(), dom_node().checked(), m_being_pressed);
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}
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}
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void RadioButton::handle_mousedown(Badge<EventHandler>, const Gfx::IntPoint&, unsigned button, unsigned)
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{
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if (button != GUI::MouseButton::Left || !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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frame().event_handler().set_mouse_event_tracking_layout_node(this);
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}
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void RadioButton::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::Left || !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 = Label::is_inside_associated_label(*this, 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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frame().event_handler().set_mouse_event_tracking_layout_node(nullptr);
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}
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void RadioButton::handle_mousemove(Badge<EventHandler>, const Gfx::IntPoint& position, unsigned, unsigned)
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{
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if (!m_tracking_mouse || !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 = Label::is_inside_associated_label(*this, 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 RadioButton::handle_associated_label_mousedown(Badge<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 RadioButton::handle_associated_label_mouseup(Badge<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 RadioButton::handle_associated_label_mousemove(Badge<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 RadioButton::set_checked_within_group()
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{
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if (dom_node().checked())
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return;
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dom_node().set_checked(true);
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String name = 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.layout_node() != this) && (element.name() == name))
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element.set_checked(false);
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return IterationDecision::Continue;
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});
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}
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}
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