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LibWeb: Implement Element.outerHTML setter
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parent
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e070309258
Notes:
sideshowbarker
2024-07-17 03:25:24 +09:00
Author: https://github.com/shannonbooth Commit: https://github.com/SerenityOS/serenity/commit/e070309258 Pull-request: https://github.com/SerenityOS/serenity/pull/24202
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Tests/LibWeb/Text/expected/HTML/set-outerHTML.txt
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Tests/LibWeb/Text/expected/HTML/set-outerHTML.txt
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@ -0,0 +1,4 @@
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Changed box.
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oldBox='<p>A box.</p>'
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newBox='<p>Changed box.</p>'
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NoModificationAllowedError: Cannot set outer HTML on document
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20
Tests/LibWeb/Text/input/HTML/set-outerHTML.html
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Tests/LibWeb/Text/input/HTML/set-outerHTML.html
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<script src="../include.js"></script>
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<div id="oldBox"><p>A box.</p></div>
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<script>
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test(() => {
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let oldElement = document.getElementById("oldBox");
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println('');
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println(`${oldElement.id}='${oldElement.innerHTML}'`);
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oldElement.outerHTML = '<div id="newBox"><p>Changed box.</p></div>';
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let newElement = document.getElementById("newBox");
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println(`${newElement.id}='${newElement.innerHTML}'`);
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try {
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document.documentElement.outerHTML = 'should throw exception!';
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} catch (e) {
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println(e);
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}
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});
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</script>
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@ -23,6 +23,7 @@
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#include <LibWeb/DOM/DOMTokenList.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/DOM/ElementFactory.h>
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#include <LibWeb/DOM/HTMLCollection.h>
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#include <LibWeb/DOM/NamedNodeMap.h>
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#include <LibWeb/DOM/ShadowRoot.h>
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@ -1425,9 +1426,29 @@ WebIDL::ExceptionOr<String> Element::outer_html() const
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}
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// https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-element-outerhtml
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WebIDL::ExceptionOr<void> Element::set_outer_html(String const&)
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WebIDL::ExceptionOr<void> Element::set_outer_html(String const& value)
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{
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dbgln("FIXME: Implement Element::set_outer_html()");
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// 1. Let parent be this's parent.
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auto* parent = this->parent();
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// 2. If parent is null, return. There would be no way to obtain a reference to the nodes created even if the remaining steps were run.
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if (!parent)
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return {};
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// 3. If parent is a Document, throw a "NoModificationAllowedError" DOMException.
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if (parent->is_document())
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return WebIDL::NoModificationAllowedError::create(realm(), "Cannot set outer HTML on document"_fly_string);
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// 4. If parent is a DocumentFragment, set parent to the result of creating an element given this's node document, body, and the HTML namespace.
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if (parent->is_document_fragment())
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parent = TRY(create_element(document(), HTML::TagNames::body, Namespace::HTML));
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// 5. Let fragment be the result of invoking the fragment parsing algorithm steps given parent and the given value.
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auto fragment = TRY(DOMParsing::parse_fragment(value, verify_cast<Element>(*parent)));
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// 6. Replace this with fragment within this's parent.
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TRY(parent->replace_child(fragment, *this));
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return {};
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}
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