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LibWeb: Implement cloning steps for HTMLTextAreaElement

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Tim Ledbetter 2024-08-21 12:27:30 +01:00 committed by Andreas Kling
parent 71cfa705d1
commit d3e076f963
Notes: github-actions[bot] 2024-08-25 10:54:22 +00:00 
Author: https://github.com/tcl3
Commit: https://github.com/LadybirdBrowser/ladybird/commit/d3e076f9637
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/1185
4 changed files with 34 additions and 0 deletions
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1
Tests/LibWeb/Text/expected/HTML/HTMLTextAreaElement-cloning-steps.txt Normal file
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@ -0,0 +1 @@
Cloned textarea value: PASS

20
Tests/LibWeb/Text/input/HTML/HTMLTextAreaElement-cloning-steps.html Normal file
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@ -0,0 +1,20 @@
<!DOCTYPE html>
<script src="../include.js"></script>
<form>
<textarea id="testTextArea" value="FAIL"></textarea>
</form>
<script>
test(() => {
const form = document.forms[0];
const textarea = form.querySelector("textarea");
textarea.value = "PASS";
const clone = form.cloneNode(true);
document.body.appendChild(clone);
println(`Cloned textarea value: ${clone.querySelector("textarea").value}`);
form.remove();
clone.remove();
});
</script>

11
Userland/Libraries/LibWeb/HTML/HTMLTextAreaElement.cpp
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@ -116,6 +116,17 @@ void HTMLTextAreaElement::reset_algorithm()
}
}
// https://html.spec.whatwg.org/multipage/forms.html#the-textarea-element:concept-node-clone-ext
WebIDL::ExceptionOr<void> HTMLTextAreaElement::cloned(DOM::Node& copy, bool)
{
// The cloning steps for textarea elements must propagate the raw value and dirty value flag from the node being cloned to the copy.
auto& textarea_copy = verify_cast<HTMLTextAreaElement>(copy);
textarea_copy.m_raw_value = m_raw_value;
textarea_copy.m_dirty_value = m_dirty_value;
return {};
}
void HTMLTextAreaElement::form_associated_element_was_inserted()
{
create_shadow_tree_if_needed();

2
Userland/Libraries/LibWeb/HTML/HTMLTextAreaElement.h
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@ -63,6 +63,8 @@ public:
virtual void reset_algorithm() override;
virtual WebIDL::ExceptionOr<void> cloned(Node&, bool) override;
virtual void form_associated_element_was_inserted() override;
virtual void form_associated_element_was_removed(DOM::Node*) override;
virtual void form_associated_element_attribute_changed(FlyString const&, Optional<String> const&) override;