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LibWeb: Implement input/textarea selection APIs

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For both types of elements, `.selectionStart`, `.selectionEnd`,
`.selectionDirection`, `.setSelectionRange()`, `.select()` and the
`select` event are now implemented.
This commit is contained in:
Jelle Raaijmakers 2024-08-22 15:20:24 +02:00 • committed by Tim Flynn
commit 814ca3267e
Notes: github-actions[bot] 2024-08-27 11:13:02 +00:00
12 changed files with 436 additions and 142 deletions
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41
Userland/Libraries/LibWeb/HTML/FormAssociatedElement.h
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2024, Jelle Raaijmakers <jelle@gmta.nl>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -49,6 +50,13 @@ private:
form_associated_element_attribute_changed(name, value); \
}
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#selection-direction
enum class SelectionDirection {
Forward,
Backward,
None,
};
class FormAssociatedElement {
public:
HTMLFormElement* form() { return m_form; }
@ -83,18 +91,37 @@ public:
virtual String value() const { return String {}; }
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#concept-textarea/input-relevant-value
String relevant_value() const;
virtual HTMLElement& form_associated_element_to_html_element() = 0;
HTMLElement const& form_associated_element_to_html_element() const { return const_cast<FormAssociatedElement&>(*this).form_associated_element_to_html_element(); }
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#concept-form-reset-control
virtual void reset_algorithm() {};
WebIDL::UnsignedLong selection_start() const;
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-select
WebIDL::ExceptionOr<void> select();
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-selectionstart
Optional<WebIDL::UnsignedLong> selection_start() const;
WebIDL::ExceptionOr<void> set_selection_start(Optional<WebIDL::UnsignedLong> const&);
WebIDL::UnsignedLong selection_end() const;
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-selectionend
Optional<WebIDL::UnsignedLong> selection_end() const;
WebIDL::ExceptionOr<void> set_selection_end(Optional<WebIDL::UnsignedLong> const&);
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-selectiondirection
Optional<String> selection_direction() const;
void set_selection_direction(Optional<String> direction);
SelectionDirection selection_direction_state() const { return m_selection_direction; }
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-setselectionrange
void set_the_selection_range(Optional<WebIDL::UnsignedLong> start, Optional<WebIDL::UnsignedLong> end, SelectionDirection direction = SelectionDirection::None);
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-textarea/input-setselectionrange
WebIDL::ExceptionOr<void> set_selection_range(Optional<WebIDL::UnsignedLong> start, Optional<WebIDL::UnsignedLong> end, Optional<String> direction);
protected:
FormAssociatedElement() = default;
virtual ~FormAssociatedElement() = default;
@ -107,13 +134,21 @@ protected:
void form_node_was_removed();
void form_node_attribute_changed(FlyString const&, Optional<String> const&);
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#concept-textarea/input-relevant-value
void relevant_value_was_changed(JS::GCPtr<DOM::Text>);
private:
void reset_form_owner();
WeakPtr<HTMLFormElement> m_form;
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#parser-inserted-flag
bool m_parser_inserted { false };
void reset_form_owner();
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#concept-textarea/input-selection
WebIDL::UnsignedLong m_selection_start { 0 };
WebIDL::UnsignedLong m_selection_end { 0 };
SelectionDirection m_selection_direction { SelectionDirection::None };
};
}