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LibWeb: Make MutationObserver GC-allocated

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This commit is contained in:
Andreas Kling 2022-09-01 17:59:48 +02:00
parent 43ec0f734f
commit 905eb8cb4d
8 changed files with 134 additions and 68 deletions
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13
Userland/Libraries/LibWeb/Bindings/MainThreadVM.cpp
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@ -14,7 +14,6 @@
#include <LibWeb/Bindings/IDLAbstractOperations.h>
#include <LibWeb/Bindings/LocationObject.h>
#include <LibWeb/Bindings/MainThreadVM.h>
#include <LibWeb/Bindings/MutationObserverWrapper.h>
#include <LibWeb/Bindings/WindowProxy.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/HTML/PromiseRejectionEvent.h>
@ -356,22 +355,22 @@ void queue_mutation_observer_microtask(DOM::Document& document)
for (auto& mutation_observer : notify_set) {
// 1. Let records be a clone of mo’s record queue.
// 2. Empty mo’s record queue.
auto records = mutation_observer.take_records();
auto records = mutation_observer->take_records();
// 3. For each node of mo’s node list, remove all transient registered observers whose observer is mo from node’s registered observer list.
for (auto& node : mutation_observer.node_list()) {
for (auto& node : mutation_observer->node_list()) {
// FIXME: Is this correct?
if (node.is_null())
continue;
node->registered_observers_list().remove_all_matching([&mutation_observer](DOM::RegisteredObserver& registered_observer) {
return is<DOM::TransientRegisteredObserver>(registered_observer) && static_cast<DOM::TransientRegisteredObserver&>(registered_observer).observer.ptr() == &mutation_observer;
return is<DOM::TransientRegisteredObserver>(registered_observer) && static_cast<DOM::TransientRegisteredObserver&>(registered_observer).observer().ptr() == mutation_observer.ptr();
});
}
// 4. If records is not empty, then invoke mo’s callback with « records, mo », and mo. If this throws an exception, catch it, and report the exception.
if (!records.is_empty()) {
auto& callback = mutation_observer.callback();
auto& callback = mutation_observer->callback();
auto& realm = callback.callback_context.realm();
auto* wrapped_records = MUST(JS::Array::create(realm, 0));
@ -381,9 +380,7 @@ void queue_mutation_observer_microtask(DOM::Document& document)
MUST(wrapped_records->create_data_property(property_index, record.ptr()));
}
auto* wrapped_mutation_observer = Bindings::wrap(realm, mutation_observer);
auto result = IDL::invoke_callback(callback, wrapped_mutation_observer, wrapped_records, wrapped_mutation_observer);
auto result = IDL::invoke_callback(callback, mutation_observer.ptr(), wrapped_records, mutation_observer.ptr());
if (result.is_abrupt())
HTML::report_exception(result);
}