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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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2
Libraries/LibWeb/Editing/Commands.cpp
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@ -384,7 +384,7 @@ bool command_insert_paragraph_action(DOM::Document& document, String const&)
// 2. If the active range's start node is neither editable nor an editing host, return true.
auto& active_range = *selection.range();
GC::Ptr<DOM::Node> node = active_range.start_container();
if (!node->is_editable() && !is_editing_host(*node))
if (!node->is_editable_or_editing_host())
return true;
// 3. Let node and offset be the active range's start node and offset.