LibWeb: Implement navigator.{plugins,mimeTypes}

Author: https://github.com/Lubrsi Commit: 4d0277cd9a Pull-request: https://github.com/SerenityOS/serenity/pull/17658 Reviewed-by: https://github.com/linusg
2025-06-17 15:51:55 +00:00 · 2023-02-28 00:23:53 +00:00 · 2023-02-28 00:23:53 +00:00 · 4d0277cd9a · 2024-07-17 06:20:50 +09:00
commit 4d0277cd9a
parent 5e422bdae0
20 changed files with 767 additions and 4 deletions
--- a/Userland/Libraries/LibWeb/HTML/PluginArray.cpp
+++ b/Userland/Libraries/LibWeb/HTML/PluginArray.cpp
@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2023, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/HTML/PluginArray.h>
+#include <LibWeb/HTML/Scripting/Environments.h>
+#include <LibWeb/HTML/Window.h>
+#include <LibWeb/Page/Page.h>
+
+namespace Web::HTML {
+
+PluginArray::PluginArray(JS::Realm& realm)
+    : Bindings::LegacyPlatformObject(realm)
+{
+}
+
+PluginArray::~PluginArray() = default;
+
+JS::ThrowCompletionOr<void> PluginArray::initialize(JS::Realm& realm)
+{
+    MUST_OR_THROW_OOM(Base::initialize(realm));
+    set_prototype(&Bindings::ensure_web_prototype<Bindings::PluginArrayPrototype>(realm, "PluginArray"));
+
+    return {};
+}
+
+// https://html.spec.whatwg.org/multipage/system-state.html#dom-pluginarray-refresh
+void PluginArray::refresh() const
+{
+    // The PluginArray interface's refresh() method steps are to do nothing.
+}
+
+// https://html.spec.whatwg.org/multipage/system-state.html#pdf-viewing-support:support-named-properties
+Vector<DeprecatedString> PluginArray::supported_property_names() const
+{
+    // 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.
+    auto const& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
+    VERIFY(window.page());
+    if (!window.page()->pdf_viewer_supported())
+        return {};
+
+    // https://html.spec.whatwg.org/multipage/system-state.html#pdf-viewer-plugin-names
+    static Vector<DeprecatedString> plugin_names = {
+        "PDF Viewer"sv,
+        "Chrome PDF Viewer"sv,
+        "Chromium PDF Viewer"sv,
+        "Microsoft Edge PDF Viewer"sv,
+        "WebKit built-in PDF"sv,
+    };
+
+    return plugin_names;
+}
+
+// https://html.spec.whatwg.org/multipage/system-state.html#pdf-viewing-support:supports-indexed-properties
+bool PluginArray::is_supported_property_index(u32 index) const
+{
+    // The PluginArray interface supports indexed properties. The supported property indices are the indices of this's relevant global object's PDF viewer plugin objects.
+    auto& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
+    return index < window.pdf_viewer_plugin_objects().size();
+}
+
+// https://html.spec.whatwg.org/multipage/system-state.html#dom-pluginarray-length
+size_t PluginArray::length() const
+{
+    // The PluginArray interface's length getter steps are to return this's relevant global object's PDF viewer plugin objects's size.
+    auto& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
+    return window.pdf_viewer_plugin_objects().size();
+}
+
+// https://html.spec.whatwg.org/multipage/system-state.html#dom-pluginarray-item
+JS::GCPtr<Plugin> PluginArray::item(u32 index) const
+{
+    // 1. Let plugins be this's relevant global object's PDF viewer plugin objects.
+    auto& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
+    auto plugins = window.pdf_viewer_plugin_objects();
+
+    // 2. If index < plugins's size, then return plugins[index].
+    if (index < plugins.size())
+        return plugins[index];
+
+    // 3. Return null.
+    return nullptr;
+}
+
+// https://html.spec.whatwg.org/multipage/system-state.html#dom-pluginarray-nameditem
+JS::GCPtr<Plugin> PluginArray::named_item(String const& name) const
+{
+    // 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.
+    auto& window = verify_cast<HTML::Window>(HTML::relevant_global_object(*this));
+    auto plugins = window.pdf_viewer_plugin_objects();
+
+    for (auto& plugin : plugins) {
+        if (plugin->name() == name)
+            return plugin;
+    }
+
+    // 2. Return null.
+    return nullptr;
+}
+
+WebIDL::ExceptionOr<JS::Value> PluginArray::item_value(size_t index) const
+{
+    auto return_value = item(index);
+    if (!return_value)
+        return JS::js_null();
+    return return_value.ptr();
+}
+
+WebIDL::ExceptionOr<JS::Value> PluginArray::named_item_value(DeprecatedFlyString const& name) const
+{
+    auto converted_name = TRY_OR_THROW_OOM(vm(), String::from_deprecated_string(name));
+    auto return_value = named_item(converted_name);
+    if (!return_value)
+        return JS::js_null();
+    return return_value.ptr();
+}
+
+}