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LibWeb: Refactor "editable" and "editing host" concepts

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The DOM spec defines what it means for an element to be an "editing
host", and the Editing spec does the same for the "editable" concept.
Replace our `Node::is_editable()` implementation with these
spec-compliant algorithms.

An editing host is an element that has the properties to make its
contents effectively editable. Editable elements are descendants of an
editing host. Concepts like the inheritable contenteditable attribute
are propagated through the editable algorithm.
This commit is contained in:
Jelle Raaijmakers 2024-12-06 11:41:20 +01:00 • committed by Jelle Raaijmakers
commit 1c55153d43
Notes: github-actions[bot] 2024-12-10 13:55:36 +00:00
22 changed files with 85 additions and 102 deletions
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19
Libraries/LibWeb/DOM/Document.cpp
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@ -2000,11 +2000,6 @@ String const& Document::compat_mode() const
return css1_compat;
}
bool Document::is_editable() const
{
return m_editable;
}
// https://html.spec.whatwg.org/multipage/interaction.html#dom-documentorshadowroot-activeelement
void Document::update_active_element()
{
@ -2060,9 +2055,8 @@ void Document::set_focused_element(Element* element)
if (auto* invalidation_target = find_common_ancestor(old_focused_element, m_focused_element) ?: this)
invalidation_target->invalidate_style(StyleInvalidationReason::FocusedElementChange);
if (m_focused_element) {
if (m_focused_element)
m_focused_element->did_receive_focus();
}
if (paintable())
paintable()->set_needs_display();
@ -5538,7 +5532,7 @@ InputEventsTarget* Document::active_input_events_target()
return static_cast<HTML::HTMLInputElement*>(focused_element);
if (is<HTML::HTMLTextAreaElement>(*focused_element))
return static_cast<HTML::HTMLTextAreaElement*>(focused_element);
if (is<HTML::HTMLElement>(*focused_element) && static_cast<HTML::HTMLElement*>(focused_element)->is_editable())
if (focused_element->is_editable_or_editing_host())
return m_editing_host_manager;
return nullptr;
}
@ -5546,9 +5540,8 @@ InputEventsTarget* Document::active_input_events_target()
GC::Ptr<DOM::Position> Document::cursor_position() const
{
auto const* focused_element = this->focused_element();
if (!focused_element) {
if (!focused_element)
return nullptr;
}
Optional<HTML::FormAssociatedTextControlElement const&> target {};
if (is<HTML::HTMLInputElement>(*focused_element))
@ -5556,13 +5549,11 @@ GC::Ptr<DOM::Position> Document::cursor_position() const
else if (is<HTML::HTMLTextAreaElement>(*focused_element))
target = static_cast<HTML::HTMLTextAreaElement const&>(*focused_element);
if (target.has_value()) {
if (target.has_value())
return target->cursor_position();
}
if (is<HTML::HTMLElement>(*focused_element) && static_cast<HTML::HTMLElement const*>(focused_element)->is_editable()) {
if (focused_element->is_editable_or_editing_host())
return m_selection->cursor_position();
}
return nullptr;
}