mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 15:40:19 +00:00
f87041bf3a
Resulting in a massive rename across almost everywhere! Alongside the namespace change, we now have the following names: * JS::NonnullGCPtr -> GC::Ref * JS::GCPtr -> GC::Ptr * JS::HeapFunction -> GC::Function * JS::CellImpl -> GC::Cell * JS::Handle -> GC::Root
121 lines
4.6 KiB
C++
121 lines
4.6 KiB
C++
/*
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* Copyright (c) 2021, Tim Flynn <trflynn89@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 <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/Element.h>
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#include <LibWeb/Layout/Label.h>
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#include <LibWeb/Layout/LabelableNode.h>
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#include <LibWeb/Layout/TextNode.h>
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#include <LibWeb/Layout/Viewport.h>
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#include <LibWeb/Painting/LabelablePaintable.h>
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#include <LibWeb/UIEvents/MouseButton.h>
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namespace Web::Layout {
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GC_DEFINE_ALLOCATOR(Label);
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Label::Label(DOM::Document& document, HTML::HTMLLabelElement* element, CSS::StyleProperties style)
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: BlockContainer(document, element, move(style))
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{
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}
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Label::~Label() = default;
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void Label::handle_mousedown_on_label(Badge<Painting::TextPaintable>, CSSPixelPoint, unsigned button)
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{
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if (button != UIEvents::MouseButton::Primary)
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return;
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if (auto control = dom_node().control(); control && is<Painting::LabelablePaintable>(control->paintable())) {
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auto& labelable_paintable = verify_cast<Painting::LabelablePaintable>(*control->paintable());
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labelable_paintable.handle_associated_label_mousedown({});
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}
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m_tracking_mouse = true;
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}
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void Label::handle_mouseup_on_label(Badge<Painting::TextPaintable>, CSSPixelPoint position, unsigned button)
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{
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if (!m_tracking_mouse || button != UIEvents::MouseButton::Primary)
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return;
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if (auto control = dom_node().control(); control && is<Painting::LabelablePaintable>(control->paintable())) {
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bool is_inside_control = control->paintable_box()->absolute_rect().contains(position);
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bool is_inside_label = paintable_box()->absolute_rect().contains(position);
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if (is_inside_control || is_inside_label) {
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auto& labelable_paintable = verify_cast<Painting::LabelablePaintable>(*control->paintable());
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labelable_paintable.handle_associated_label_mouseup({});
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}
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}
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m_tracking_mouse = false;
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}
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void Label::handle_mousemove_on_label(Badge<Painting::TextPaintable>, CSSPixelPoint position, unsigned)
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{
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if (!m_tracking_mouse)
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return;
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if (auto control = dom_node().control(); control && is<Painting::LabelablePaintable>(control->paintable())) {
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bool is_inside_control = control->paintable_box()->absolute_rect().contains(position);
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bool is_inside_label = paintable_box()->absolute_rect().contains(position);
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auto& labelable_paintable = verify_cast<Painting::LabelablePaintable>(*control->paintable());
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labelable_paintable.handle_associated_label_mousemove({}, is_inside_control || is_inside_label);
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}
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}
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bool Label::is_inside_associated_label(LabelableNode const& control, CSSPixelPoint position)
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{
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if (auto* label = label_for_control_node(control); label)
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return label->paintable_box()->absolute_rect().contains(position);
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return false;
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}
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bool Label::is_associated_label_hovered(LabelableNode const& control)
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{
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if (auto* label = label_for_control_node(control); label) {
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if (label->document().hovered_node() == &label->dom_node())
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return true;
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if (auto* child = label->first_child_of_type<TextNode>(); child)
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return label->document().hovered_node() == &child->dom_node();
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}
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return false;
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}
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// https://html.spec.whatwg.org/multipage/forms.html#labeled-control
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Label const* Label::label_for_control_node(LabelableNode const& control)
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{
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if (!control.document().layout_node())
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return nullptr;
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// The for attribute may be specified to indicate a form control with which the caption is to be associated.
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// If the attribute is specified, the attribute's value must be the ID of a labelable element in the
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// same tree as the label element. If the attribute is specified and there is an element in the tree
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// whose ID is equal to the value of the for attribute, and the first such element in tree order is
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// a labelable element, then that element is the label element's labeled control.
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if (auto const& id = control.dom_node().id(); id.has_value() && !id->is_empty()) {
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Label const* label = nullptr;
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control.document().layout_node()->for_each_in_inclusive_subtree_of_type<Label>([&](auto& node) {
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if (node.dom_node().for_() == id) {
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label = &node;
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return TraversalDecision::Break;
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}
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return TraversalDecision::Continue;
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});
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if (label)
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return label;
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}
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// If the for attribute is not specified, but the label element has a labelable element descendant,
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// then the first such descendant in tree order is the label element's labeled control.
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return control.first_ancestor_of_type<Label>();
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}
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}
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