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LibWeb: Implement and use fire_a_version_change_event

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stelar7 2024-11-04 19:21:18 +01:00 committed by Andrew Kaster
parent 54b5822e0b
commit c453761c3e
Notes: github-actions[bot] 2024-11-08 18:11:14 +00:00 
Author: https://github.com/stelar7
Commit: https://github.com/LadybirdBrowser/ladybird/commit/c453761c3e1
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2165
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/shannonbooth
2 changed files with 35 additions and 0 deletions
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34
Userland/Libraries/LibWeb/IndexedDB/Internal/Algorithms.cpp
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@ -5,8 +5,10 @@
*/
#include <LibJS/Runtime/VM.h>
#include <LibWeb/DOM/EventDispatcher.h>
#include <LibWeb/HTML/EventNames.h>
#include <LibWeb/IndexedDB/IDBRequest.h>
#include <LibWeb/IndexedDB/IDBVersionChangeEvent.h>
#include <LibWeb/IndexedDB/Internal/Algorithms.h>
#include <LibWeb/IndexedDB/Internal/ConnectionQueueHandler.h>
#include <LibWeb/IndexedDB/Internal/Database.h>
@ -67,6 +69,9 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<IDBDatabase>> open_a_database_connection(JS
// queue a task to fire a version change event named versionchange at entry with db’s version and version.
for (auto& entry : open_connections) {
if (!entry->close_pending()) {
HTML::queue_a_task(HTML::Task::Source::DatabaseAccess, nullptr, nullptr, JS::create_heap_function(realm.vm().heap(), [&realm, entry, db, version]() {
fire_a_version_change_event(realm, HTML::EventNames::versionchange, *entry, db->version(), version);
}));
}
}
@ -76,6 +81,9 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<IDBDatabase>> open_a_database_connection(JS
// queue a task to fire a version change event named blocked at request with db’s version and version.
for (auto& entry : open_connections) {
if (entry->state() != IDBDatabase::ConnectionState::Closed) {
HTML::queue_a_task(HTML::Task::Source::DatabaseAccess, nullptr, nullptr, JS::create_heap_function(realm.vm().heap(), [&realm, entry, db, version]() {
fire_a_version_change_event(realm, HTML::EventNames::blocked, *entry, db->version(), version);
}));
}
}
@ -107,4 +115,30 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<IDBDatabase>> open_a_database_connection(JS
return connection;
}
bool fire_a_version_change_event(JS::Realm& realm, FlyString const& event_name, JS::NonnullGCPtr<DOM::EventTarget> target, u64 old_version, Optional<u64> new_version)
{
IDBVersionChangeEventInit event_init = {};
// 4. Set event’s oldVersion attribute to oldVersion.
event_init.old_version = old_version;
// 5. Set event’s newVersion attribute to newVersion.
event_init.new_version = new_version;
// 1. Let event be the result of creating an event using IDBVersionChangeEvent.
// 2. Set event’s type attribute to e.
auto event = IDBVersionChangeEvent::create(realm, event_name, event_init);
// 3. Set event’s bubbles and cancelable attributes to false.
event->set_bubbles(false);
event->set_cancelable(false);
// 6. Let legacyOutputDidListenersThrowFlag be false.
auto legacy_output_did_listeners_throw_flag = false;
// 7. Dispatch event at target with legacyOutputDidListenersThrowFlag.
DOM::EventDispatcher::dispatch(target, *event, legacy_output_did_listeners_throw_flag);
// 8. Return legacyOutputDidListenersThrowFlag.
return legacy_output_did_listeners_throw_flag;
}
}

1
Userland/Libraries/LibWeb/IndexedDB/Internal/Algorithms.h
View file

@ -13,5 +13,6 @@
namespace Web::IndexedDB {
WebIDL::ExceptionOr<JS::NonnullGCPtr<IDBDatabase>> open_a_database_connection(JS::Realm&, StorageAPI::StorageKey, String, Optional<u64>, JS::NonnullGCPtr<IDBRequest>);
bool fire_a_version_change_event(JS::Realm&, FlyString const&, JS::NonnullGCPtr<DOM::EventTarget>, u64, Optional<u64>);
}