c5c1a8fcc7
This removes some ambiguity about what the return value should be if the index is out of range. Previously, we would sometimes return a JS null, and other times a JS undefined. It will also let us fold together the checks for whether an index is a supported property index, followed by getting the value just afterwards.
125 lines
4.3 KiB
C++
125 lines
4.3 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/Bindings/PluginArrayPrototype.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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WEB_SET_PROTOTYPE_FOR_INTERFACE(PluginArray);
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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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Optional<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 {};
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return return_value.ptr();
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}
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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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