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LibWeb: Remove unecessary dependence on Window from DOM and WebIDL

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These classes only needed Window to get at its realm. Pass a realm
directly to construct DOM and WebIDL classes.

This change importantly removes the guarantee that a Document will
always have a non-null Window object. Only Documents created by a
BrowsingContext will have a non-null Window object. Documents created by
for example, DocumentFragment, will not have a Window (soon).

This incremental commit leaves some workarounds in place to keep other
parts of the code building.
This commit is contained in:
Andrew Kaster 2022-09-25 16:15:49 -06:00 • committed by Linus Groh
parent 8407bf60c5
commit 8de7e49a56
56 changed files with 364 additions and 326 deletions
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14
Userland/Libraries/LibWeb/DOM/MutationObserver.cpp
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@ -4,29 +4,29 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/Bindings/MainThreadVM.h>
#include <LibWeb/DOM/MutationObserver.h>
#include <LibWeb/DOM/Node.h>
#include <LibWeb/HTML/Window.h>
namespace Web::DOM {
JS::NonnullGCPtr<MutationObserver> MutationObserver::create_with_global_object(HTML::Window& window, JS::GCPtr<WebIDL::CallbackType> callback)
JS::NonnullGCPtr<MutationObserver> MutationObserver::construct_impl(JS::Realm& realm, JS::GCPtr<WebIDL::CallbackType> callback)
{
return *window.heap().allocate<MutationObserver>(window.realm(), window, callback);
return *realm.heap().allocate<MutationObserver>(realm, realm, callback);
}
// https://dom.spec.whatwg.org/#dom-mutationobserver-mutationobserver
MutationObserver::MutationObserver(HTML::Window& window, JS::GCPtr<WebIDL::CallbackType> callback)
: PlatformObject(window.realm())
MutationObserver::MutationObserver(JS::Realm& realm, JS::GCPtr<WebIDL::CallbackType> callback)
: PlatformObject(realm)
, m_callback(move(callback))
{
set_prototype(&window.cached_web_prototype("MutationObserver"));
set_prototype(&Bindings::cached_web_prototype(realm, "MutationObserver"));
// 1. Set this’s callback to callback.
// 2. Append this to this’s relevant agent’s mutation observers.
auto* agent_custom_data = verify_cast<Bindings::WebEngineCustomData>(window.vm().custom_data());
auto* agent_custom_data = verify_cast<Bindings::WebEngineCustomData>(realm.vm().custom_data());
agent_custom_data->mutation_observers.append(*this);
}