mirror of
https://github.com/RGBCube/serenity
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7c57961c61
Browsing contexts are defined by the HTML specification, so let's move them into the HTML directory. :^)
140 lines
4.2 KiB
C++
140 lines
4.2 KiB
C++
/*
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* Copyright (c) 2021, Tim Flynn <trflynn89@pm.me>
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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/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/DOM/Element.h>
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#include <LibWeb/HTML/BrowsingContext.h>
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#include <LibWeb/Layout/InitialContainingBlock.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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namespace Web::Layout {
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Label::Label(DOM::Document& document, HTML::HTMLLabelElement* element, NonnullRefPtr<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()
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{
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}
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void Label::handle_mousedown_on_label(Badge<TextNode>, const Gfx::IntPoint&, unsigned button)
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{
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if (button != GUI::MouseButton::Primary)
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return;
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if (auto* control = control_node(); control)
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control->handle_associated_label_mousedown({});
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m_tracking_mouse = true;
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}
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void Label::handle_mouseup_on_label(Badge<TextNode>, const Gfx::IntPoint& position, unsigned button)
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{
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if (!m_tracking_mouse || button != GUI::MouseButton::Primary)
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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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if (auto* control = control_node(); control) {
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bool is_inside_control = enclosing_int_rect(control->absolute_rect()).contains(position);
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bool is_inside_label = enclosing_int_rect(absolute_rect()).contains(position);
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if (is_inside_control || is_inside_label)
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control->handle_associated_label_mouseup({});
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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<TextNode>, const Gfx::IntPoint& 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 = control_node(); control) {
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bool is_inside_control = enclosing_int_rect(control->absolute_rect()).contains(position);
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bool is_inside_label = enclosing_int_rect(absolute_rect()).contains(position);
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control->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& control, const Gfx::IntPoint& position)
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{
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if (auto* label = label_for_control_node(control); label)
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return enclosing_int_rect(label->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& 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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Label* Label::label_for_control_node(LabelableNode& control)
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{
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Label* label = nullptr;
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if (!control.document().layout_node())
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return label;
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String id = control.dom_node().attribute(HTML::AttributeNames::id);
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if (id.is_empty())
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return label;
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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 IterationDecision::Break;
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}
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return IterationDecision::Continue;
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});
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// FIXME: The spec also allows for associating a label with a labelable node by putting the
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// labelable node inside the label.
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return label;
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}
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LabelableNode* Label::control_node()
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{
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LabelableNode* control = nullptr;
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if (!document().layout_node())
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return control;
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String for_ = dom_node().for_();
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if (for_.is_empty())
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return control;
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document().layout_node()->for_each_in_inclusive_subtree_of_type<LabelableNode>([&](auto& node) {
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if (node.dom_node().attribute(HTML::AttributeNames::id) == for_) {
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control = &node;
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return IterationDecision::Break;
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}
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return IterationDecision::Continue;
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});
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// FIXME: The spec also allows for associating a label with a labelable node by putting the
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// labelable node inside the label.
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return control;
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}
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}
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