Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibWeb/HTML/WorkerGlobalScope.cpp

@@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 2022, Andrew Kaster <akaster@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <AK/Vector.h>
+#include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/Bindings/WorkerGlobalScopePrototype.h>
+#include <LibWeb/CSS/FontFaceSet.h>
+#include <LibWeb/HTML/EventHandler.h>
+#include <LibWeb/HTML/EventNames.h>
+#include <LibWeb/HTML/MessageEvent.h>
+#include <LibWeb/HTML/MessagePort.h>
+#include <LibWeb/HTML/Scripting/ClassicScript.h>
+#include <LibWeb/HTML/StructuredSerialize.h>
+#include <LibWeb/HTML/WorkerGlobalScope.h>
+#include <LibWeb/HTML/WorkerLocation.h>
+#include <LibWeb/HTML/WorkerNavigator.h>
+#include <LibWeb/Page/Page.h>
+
+namespace Web::HTML {
+
+JS_DEFINE_ALLOCATOR(WorkerGlobalScope);
+
+WorkerGlobalScope::WorkerGlobalScope(JS::Realm& realm, JS::NonnullGCPtr<Web::Page> page)
+    : DOM::EventTarget(realm)
+    , m_page(page)
+{
+}
+
+WorkerGlobalScope::~WorkerGlobalScope() = default;
+
+void WorkerGlobalScope::initialize_web_interfaces_impl()
+{
+    auto& realm = this->realm();
+    Base::initialize(realm);
+
+    WindowOrWorkerGlobalScopeMixin::initialize(realm);
+
+    m_navigator = WorkerNavigator::create(*this);
+}
+
+void WorkerGlobalScope::visit_edges(Cell::Visitor& visitor)
+{
+    Base::visit_edges(visitor);
+    WindowOrWorkerGlobalScopeMixin::visit_edges(visitor);
+
+    visitor.visit(m_location);
+    visitor.visit(m_navigator);
+    visitor.visit(m_internal_port);
+    visitor.visit(m_page);
+    visitor.visit(m_fonts);
+}
+
+void WorkerGlobalScope::finalize()
+{
+    Base::finalize();
+    WindowOrWorkerGlobalScopeMixin::finalize();
+}
+
+void WorkerGlobalScope::set_internal_port(JS::NonnullGCPtr<MessagePort> port)
+{
+    m_internal_port = port;
+    m_internal_port->set_worker_event_target(*this);
+}
+
+// https://html.spec.whatwg.org/multipage/workers.html#close-a-worker
+void WorkerGlobalScope::close_a_worker()
+{
+    // 1. Discard any tasks that have been added to workerGlobal's relevant agent's event loop's task queues.
+    relevant_settings_object(*this).responsible_event_loop().task_queue().remove_tasks_matching([](HTML::Task const& task) {
+        // NOTE: We don't discard tasks with the PostedMessage source, as the spec expects PostMessage() to act as if it is invoked immediately
+        return task.source() != HTML::Task::Source::PostedMessage;
+    });
+
+    // 2. Set workerGlobal's closing flag to true. (This prevents any further tasks from being queued.)
+    m_closing = true;
+}
+
+// https://html.spec.whatwg.org/multipage/workers.html#importing-scripts-and-libraries
+// https://whatpr.org/html/9893/workers.html#importing-scripts-and-libraries
+WebIDL::ExceptionOr<void> WorkerGlobalScope::import_scripts(Vector<String> const& urls, PerformTheFetchHook perform_fetch)
+{
+    // The algorithm may optionally be customized by supplying custom perform the fetch hooks,
+    // which if provided will be used when invoking fetch a classic worker-imported script.
+    // NOTE: Service Workers is an example of a specification that runs this algorithm with its own options for the perform the fetch hook.
+
+    // FIXME: 1. If worker global scope's type is "module", throw a TypeError exception.
+
+    // 2. Let settings object be the current principal settings object.
+    auto& settings_object = HTML::current_principal_settings_object();
+
+    // 3. If urls is empty, return.
+    if (urls.is_empty())
+        return {};
+
+    // 4. Let urlRecords be « ».
+    Vector<URL::URL> url_records;
+    url_records.ensure_capacity(urls.size());
+
+    // 5. For each url of urls:
+    for (auto const& url : urls) {
+        // 1. Let urlRecord be the result of encoding-parsing a URL given url, relative to settings object.
+        auto url_record = settings_object.parse_url(url);
+
+        // 2. If urlRecord is failure, then throw a "SyntaxError" DOMException.
+        if (!url_record.is_valid())
+            return WebIDL::SyntaxError::create(realm(), "Invalid URL"_string);
+
+        // 3. Append urlRecord to urlRecords.
+        url_records.unchecked_append(url_record);
+    }
+
+    // 6. For each urlRecord of urlRecords:
+    for (auto const& url_record : url_records) {
+        // 1. Fetch a classic worker-imported script given urlRecord and settings object, passing along performFetch if provided.
+        //    If this succeeds, let script be the result. Otherwise, rethrow the exception.
+        auto classic_script = TRY(HTML::fetch_a_classic_worker_imported_script(url_record, settings_object, perform_fetch));
+
+        // 2. Run the classic script script, with the rethrow errors argument set to true.
+        // NOTE: script will run until it either returns, fails to parse, fails to catch an exception,
+        //       or gets prematurely aborted by the terminate a worker algorithm defined above.
+        // If an exception was thrown or if the script was prematurely aborted, then abort all these steps,
+        // letting the exception or aborting continue to be processed by the calling script.
+        TRY(classic_script->run(ClassicScript::RethrowErrors::Yes));
+    }
+
+    return {};
+}
+
+// https://html.spec.whatwg.org/multipage/workers.html#dom-workerglobalscope-location
+JS::NonnullGCPtr<WorkerLocation> WorkerGlobalScope::location() const
+{
+    // The location attribute must return the WorkerLocation object whose associated WorkerGlobalScope object is the WorkerGlobalScope object.
+    return *m_location;
+}
+
+// https://html.spec.whatwg.org/multipage/workers.html#dom-worker-navigator
+JS::NonnullGCPtr<WorkerNavigator> WorkerGlobalScope::navigator() const
+{
+    // The navigator attribute of the WorkerGlobalScope interface must return an instance of the WorkerNavigator interface,
+    // which represents the identity and state of the user agent (the client).
+    return *m_navigator;
+}
+
+#undef __ENUMERATE
+#define __ENUMERATE(attribute_name, event_name)                               \
+    void WorkerGlobalScope::set_##attribute_name(WebIDL::CallbackType* value) \
+    {                                                                         \
+        set_event_handler_attribute(event_name, move(value));                 \
+    }                                                                         \
+    WebIDL::CallbackType* WorkerGlobalScope::attribute_name()                 \
+    {                                                                         \
+        return event_handler_attribute(event_name);                           \
+    }
+ENUMERATE_WORKER_GLOBAL_SCOPE_EVENT_HANDLERS(__ENUMERATE)
+#undef __ENUMERATE
+
+JS::NonnullGCPtr<CSS::FontFaceSet> WorkerGlobalScope::fonts()
+{
+    if (!m_fonts)
+        m_fonts = CSS::FontFaceSet::create(realm());
+    return *m_fonts;
+}
+
+}