From 64eea90f298d7de5eeedb18ae8b27606be1c5544 Mon Sep 17 00:00:00 2001
From: stelar7 <dudedbz@gmail.com>
Date: Mon, 4 Nov 2024 18:19:19 +0100
Subject: [PATCH] LibWeb: Implement most of IDBFactory::open

---
 .../Libraries/LibWeb/IndexedDB/IDBFactory.cpp | 41 +++++++++++++++++++
 .../Libraries/LibWeb/IndexedDB/IDBFactory.h   |  4 ++
 .../Libraries/LibWeb/IndexedDB/IDBFactory.idl |  3 +-
 3 files changed, 46 insertions(+), 2 deletions(-)

diff --git a/Userland/Libraries/LibWeb/IndexedDB/IDBFactory.cpp b/Userland/Libraries/LibWeb/IndexedDB/IDBFactory.cpp
index 72ed33ec6cc..99516c37797 100644
--- a/Userland/Libraries/LibWeb/IndexedDB/IDBFactory.cpp
+++ b/Userland/Libraries/LibWeb/IndexedDB/IDBFactory.cpp
@@ -1,12 +1,18 @@
 /*
  * Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
+ * Copyright (c) 2024, stelar7 <dudedbz@gmail.com>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
 #include <LibWeb/Bindings/IDBFactoryPrototype.h>
 #include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/DOM/Event.h>
+#include <LibWeb/HTML/EventNames.h>
+#include <LibWeb/HTML/Scripting/TemporaryExecutionContext.h>
 #include <LibWeb/IndexedDB/IDBFactory.h>
+#include <LibWeb/Platform/EventLoopPlugin.h>
+#include <LibWeb/StorageAPI/StorageKey.h>
 
 namespace Web::IndexedDB {
 
@@ -25,4 +31,39 @@ void IDBFactory::initialize(JS::Realm& realm)
     WEB_SET_PROTOTYPE_FOR_INTERFACE(IDBFactory);
 }
 
+// https://w3c.github.io/IndexedDB/#dom-idbfactory-open
+WebIDL::ExceptionOr<JS::NonnullGCPtr<IDBOpenDBRequest>> IDBFactory::open(String const& name, Optional<u64> version)
+{
+    auto& realm = this->realm();
+
+    // 1. If version is 0 (zero), throw a TypeError.
+    if (version.has_value() && version.value() == 0)
+        return WebIDL::SimpleException { WebIDL::SimpleExceptionType::TypeError, "The version provided must not be 0"_string };
+
+    // 2. Let environment be this's relevant settings object.
+    auto& environment = HTML::relevant_settings_object(*this);
+
+    // 3. Let storageKey be the result of running obtain a storage key given environment.
+    //    If failure is returned, then throw a "SecurityError" DOMException and abort these steps.
+    auto storage_key = StorageAPI::obtain_a_storage_key(environment);
+    if (!storage_key.has_value())
+        return WebIDL::SecurityError::create(realm, "Failed to obtain a storage key"_string);
+
+    // 4. Let request be a new open request.
+    auto request = IDBOpenDBRequest::create(realm);
+
+    // 5. Run these steps in parallel:
+    Platform::EventLoopPlugin::the().deferred_invoke(JS::create_heap_function(realm.heap(), [&realm, storage_key, name, version, request] {
+        HTML::TemporaryExecutionContext context(realm, HTML::TemporaryExecutionContext::CallbacksEnabled::Yes);
+
+        (void)storage_key;
+        (void)name;
+        (void)version;
+        (void)request;
+    }));
+
+    // 6. Return a new IDBOpenDBRequest object for request.
+    return request;
+}
+
 }
diff --git a/Userland/Libraries/LibWeb/IndexedDB/IDBFactory.h b/Userland/Libraries/LibWeb/IndexedDB/IDBFactory.h
index b2d87a3eb78..0e4bdc2d91a 100644
--- a/Userland/Libraries/LibWeb/IndexedDB/IDBFactory.h
+++ b/Userland/Libraries/LibWeb/IndexedDB/IDBFactory.h
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2024, Shannon Booth <shannon@serenityos.org>
+ * Copyright (c) 2024, stelar7 <dudedbz@gmail.com>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -7,6 +8,7 @@
 #pragma once
 
 #include <LibWeb/Bindings/PlatformObject.h>
+#include <LibWeb/IndexedDB/IDBOpenDBRequest.h>
 
 namespace Web::IndexedDB {
 
@@ -18,6 +20,8 @@ class IDBFactory : public Bindings::PlatformObject {
 public:
     virtual ~IDBFactory() override;
 
+    WebIDL::ExceptionOr<JS::NonnullGCPtr<IDBOpenDBRequest>> open(String const& name, Optional<u64> version);
+
 protected:
     explicit IDBFactory(JS::Realm&);
 
diff --git a/Userland/Libraries/LibWeb/IndexedDB/IDBFactory.idl b/Userland/Libraries/LibWeb/IndexedDB/IDBFactory.idl
index c64cc356a32..e6b457c1457 100644
--- a/Userland/Libraries/LibWeb/IndexedDB/IDBFactory.idl
+++ b/Userland/Libraries/LibWeb/IndexedDB/IDBFactory.idl
@@ -1,8 +1,7 @@
 // https://w3c.github.io/IndexedDB/#idbfactory
 [Exposed=(Window,Worker)]
 interface IDBFactory {
-    [FIXME, NewObject] IDBOpenDBRequest open(DOMString name,
-                                             optional [EnforceRange] unsigned long long version);
+    [NewObject] IDBOpenDBRequest open(DOMString name, optional [EnforceRange] unsigned long long version);
     [FIXME, NewObject] IDBOpenDBRequest deleteDatabase(DOMString name);
 
     [FIXME] Promise<sequence<IDBDatabaseInfo>> databases();