521ed0e911
We have two known PlatformObjects that need to implement some of the behavior of LegacyPlatformObjects to date: Window, and HTMLFormElement. To make this not require double (or virtual) inheritance of PlatformObject, move the behavior of LegacyPlatformObject into PlatformObject. The selection of LegacyPlatformObject behavior is done with a new bitfield of feature flags instead of a dozen virtual functions that return bool. This change simplifies every class involved in the diff with the notable exception of Window, which now needs some ugly const casts to implement named property access.
124 lines
4.4 KiB
C++
124 lines
4.4 KiB
C++
/*
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* Copyright (c) 2023, Luke Wilde <lukew@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 <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/HTML/PluginArray.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(PluginArray);
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PluginArray::PluginArray(JS::Realm& realm)
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: Bindings::PlatformObject(realm)
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{
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m_legacy_platform_object_flags = LegacyPlatformObjectFlags {
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.supports_indexed_properties = true,
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.supports_named_properties = true,
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.has_legacy_unenumerable_named_properties_interface_extended_attribute = true,
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};
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}
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PluginArray::~PluginArray() = default;
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void PluginArray::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::PluginArrayPrototype>(realm, "PluginArray"_fly_string));
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}
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// https://html.spec.whatwg.org/multipage/system-state.html#dom-pluginarray-refresh
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void PluginArray::refresh() const
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{
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// The PluginArray interface's refresh() method steps are to do nothing.
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}
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// https://html.spec.whatwg.org/multipage/system-state.html#pdf-viewing-support:support-named-properties
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Vector<FlyString> PluginArray::supported_property_names() const
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{
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// The PluginArray interface supports named properties. If the user agent's PDF viewer supported is true, then they are the PDF viewer plugin names. Otherwise, they are the empty list.
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auto const& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
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if (!window.page().pdf_viewer_supported())
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return {};
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// https://html.spec.whatwg.org/multipage/system-state.html#pdf-viewer-plugin-names
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static Vector<FlyString> const plugin_names = {
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"PDF Viewer"_fly_string,
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"Chrome PDF Viewer"_fly_string,
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"Chromium PDF Viewer"_fly_string,
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"Microsoft Edge PDF Viewer"_fly_string,
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"WebKit built-in PDF"_fly_string,
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};
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return plugin_names;
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}
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// https://html.spec.whatwg.org/multipage/system-state.html#pdf-viewing-support:supports-indexed-properties
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bool PluginArray::is_supported_property_index(u32 index) const
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{
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// The PluginArray interface supports indexed properties. The supported property indices are the indices of this's relevant global object's PDF viewer plugin objects.
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auto& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
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return index < window.pdf_viewer_plugin_objects().size();
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}
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// https://html.spec.whatwg.org/multipage/system-state.html#dom-pluginarray-length
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size_t PluginArray::length() const
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{
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// The PluginArray interface's length getter steps are to return this's relevant global object's PDF viewer plugin objects's size.
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auto& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
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return window.pdf_viewer_plugin_objects().size();
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}
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// https://html.spec.whatwg.org/multipage/system-state.html#dom-pluginarray-item
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JS::GCPtr<Plugin> PluginArray::item(u32 index) const
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{
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// 1. Let plugins be this's relevant global object's PDF viewer plugin objects.
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auto& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
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auto plugins = window.pdf_viewer_plugin_objects();
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// 2. If index < plugins's size, then return plugins[index].
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if (index < plugins.size())
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return plugins[index];
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// 3. Return null.
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return nullptr;
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}
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// https://html.spec.whatwg.org/multipage/system-state.html#dom-pluginarray-nameditem
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JS::GCPtr<Plugin> PluginArray::named_item(FlyString const& name) const
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{
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// 1. For each Plugin plugin of this's relevant global object's PDF viewer plugin objects: if plugin's name is name, then return plugin.
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auto& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
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auto plugins = window.pdf_viewer_plugin_objects();
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for (auto& plugin : plugins) {
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if (plugin->name() == name)
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return plugin;
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}
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// 2. Return null.
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return nullptr;
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}
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WebIDL::ExceptionOr<JS::Value> PluginArray::item_value(size_t index) const
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{
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auto return_value = item(index);
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if (!return_value)
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return JS::js_null();
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return return_value.ptr();
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}
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WebIDL::ExceptionOr<JS::Value> PluginArray::named_item_value(FlyString const& name) const
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{
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auto return_value = named_item(name);
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if (!return_value)
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return JS::js_null();
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return return_value.ptr();
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}
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}
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