mirror of
https://github.com/RGBCube/serenity
synced 2025-05-16 20:25:07 +00:00
0264ae23bc
Instead of doing layout synchronously whenever something changes, we now use a basic event loop timer to defer and coalesce relayouts. If you did something that requires a relayout of the page, make sure to call Document::set_needs_layout() and it will get coalesced with all the other layout updates. There's lots of room for improvement here, but this already makes many web pages significantly snappier. :^) Also, note that this exposes a number of layout bugs where we have been relying on multiple relayouts to calculate the correct dimensions for things. Now that we only do a single layout in many cases, these kind of problems are much more noticeable. That should also make them easier to figure out and fix. :^)
55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/Event.h>
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#include <LibWeb/DOM/ShadowRoot.h>
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#include <LibWeb/DOMParsing/InnerHTML.h>
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#include <LibWeb/Layout/BlockBox.h>
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namespace Web::DOM {
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ShadowRoot::ShadowRoot(Document& document, Element& host)
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: DocumentFragment(document)
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{
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set_host(host);
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}
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// https://dom.spec.whatwg.org/#ref-for-get-the-parent%E2%91%A6
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EventTarget* ShadowRoot::get_parent(const Event& event)
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{
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if (!event.composed()) {
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auto& events_first_invocation_target = verify_cast<Node>(*event.path().first().invocation_target);
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if (&events_first_invocation_target.root() == this)
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return nullptr;
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}
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return host();
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}
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RefPtr<Layout::Node> ShadowRoot::create_layout_node()
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{
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return adopt_ref(*new Layout::BlockBox(document(), this, CSS::ComputedValues {}));
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}
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// https://w3c.github.io/DOM-Parsing/#dom-innerhtml-innerhtml
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String ShadowRoot::inner_html() const
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{
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return serialize_fragment(/* FIXME: Providing true for the require well-formed flag (which may throw) */);
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}
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// https://w3c.github.io/DOM-Parsing/#dom-innerhtml-innerhtml
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ExceptionOr<void> ShadowRoot::set_inner_html(String const& markup)
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{
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auto result = DOMParsing::InnerHTML::inner_html_setter(*this, markup);
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if (result.is_exception())
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return result.exception();
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set_needs_style_update(true);
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return {};
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}
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}
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