bfd354492e
With this change, we now have ~1200 CellAllocators across both LibJS and LibWeb in a normal WebContent instance. This gives us a minimum heap size of 4.7 MiB in the scenario where we only have one cell allocated per type. Of course, in practice there will be many more of each type, so the effective overhead is quite a bit smaller than that in practice. I left a few types unconverted to this mechanism because I got tired of doing this. :^)
87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
/*
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* Copyright (c) 2022, Andrew Kaster <akaster@serenityos.org>
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* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Heap/Heap.h>
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#include <LibJS/Runtime/Realm.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/Clipboard/Clipboard.h>
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#include <LibWeb/HTML/Navigator.h>
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#include <LibWeb/HTML/Scripting/Environments.h>
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#include <LibWeb/HTML/Window.h>
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#include <LibWeb/Page/Page.h>
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namespace Web::HTML {
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JS_DEFINE_ALLOCATOR(Navigator);
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JS::NonnullGCPtr<Navigator> Navigator::create(JS::Realm& realm)
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{
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return realm.heap().allocate<Navigator>(realm, realm);
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}
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Navigator::Navigator(JS::Realm& realm)
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: PlatformObject(realm)
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{
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}
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Navigator::~Navigator() = default;
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void Navigator::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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set_prototype(&Bindings::ensure_web_prototype<Bindings::NavigatorPrototype>(realm, "Navigator"));
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}
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// https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-pdfviewerenabled
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bool Navigator::pdf_viewer_enabled() const
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{
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// The NavigatorPlugins mixin's pdfViewerEnabled getter steps are to return the user agent's PDF viewer supported.
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// NOTE: The NavigatorPlugins mixin should only be exposed on the Window object.
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auto const& window = verify_cast<HTML::Window>(HTML::current_global_object());
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return window.page()->pdf_viewer_supported();
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}
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// https://w3c.github.io/webdriver/#dfn-webdriver
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bool Navigator::webdriver() const
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{
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// Returns true if webdriver-active flag is set, false otherwise.
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// NOTE: The NavigatorAutomationInformation interface should not be exposed on WorkerNavigator.
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auto const& window = verify_cast<HTML::Window>(HTML::current_global_object());
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return window.page()->is_webdriver_active();
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}
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void Navigator::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_mime_type_array);
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visitor.visit(m_plugin_array);
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visitor.visit(m_clipboard);
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}
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JS::NonnullGCPtr<MimeTypeArray> Navigator::mime_types()
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{
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if (!m_mime_type_array)
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m_mime_type_array = heap().allocate<MimeTypeArray>(realm(), realm());
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return *m_mime_type_array;
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}
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JS::NonnullGCPtr<PluginArray> Navigator::plugins()
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{
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if (!m_plugin_array)
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m_plugin_array = heap().allocate<PluginArray>(realm(), realm());
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return *m_plugin_array;
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}
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JS::NonnullGCPtr<Clipboard::Clipboard> Navigator::clipboard()
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{
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if (!m_clipboard)
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m_clipboard = heap().allocate<Clipboard::Clipboard>(realm(), realm());
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return *m_clipboard;
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}
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}
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