LibWeb: Add legacy Option factory function

6 files changed, 112 insertions, 1 deletions

diff --git a/Userland/Libraries/LibWeb/Bindings/OptionConstructor.cpp b/Userland/Libraries/LibWeb/Bindings/OptionConstructor.cpp
new file mode 100644
index 0000000000..e63daebfc3
--- /dev/null
+++ b/Userland/Libraries/LibWeb/Bindings/OptionConstructor.cpp
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2022, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/Bindings/HTMLOptionElementPrototype.h>
+#include <LibWeb/Bindings/HTMLOptionElementWrapper.h>
+#include <LibWeb/Bindings/NodeWrapperFactory.h>
+#include <LibWeb/Bindings/OptionConstructor.h>
+#include <LibWeb/DOM/ElementFactory.h>
+#include <LibWeb/HTML/HTMLOptionElement.h>
+#include <LibWeb/HTML/Window.h>
+#include <LibWeb/Namespace.h>
+
+namespace Web::Bindings {
+
+OptionConstructor::OptionConstructor(JS::GlobalObject& global_object)
+    : NativeFunction(*global_object.function_prototype())
+{
+}
+
+void OptionConstructor::initialize(JS::GlobalObject& global_object)
+{
+    auto& vm = this->vm();
+    auto& window = static_cast<WindowObject&>(global_object);
+    NativeFunction::initialize(global_object);
+
+    define_direct_property(vm.names.prototype, &window.ensure_web_prototype<HTMLOptionElementPrototype>("HTMLOptionElement"), 0);
+    define_direct_property(vm.names.length, JS::Value(0), JS::Attribute::Configurable);
+}
+
+JS::ThrowCompletionOr<JS::Value> OptionConstructor::call()
+{
+    return vm().throw_completion<JS::TypeError>(global_object(), JS::ErrorType::ConstructorWithoutNew, "Option");
+}
+
+// https://html.spec.whatwg.org/multipage/form-elements.html#dom-option
+JS::ThrowCompletionOr<JS::Object*> OptionConstructor::construct(FunctionObject&)
+{
+    // 1. Let document be the current global object's associated Document.
+    auto& window = static_cast<WindowObject&>(HTML::current_global_object());
+    auto& document = window.impl().associated_document();
+
+    // 2. Let option be the result of creating an element given document, option, and the HTML namespace.
+    auto option_element = static_ptr_cast<HTML::HTMLOptionElement>(DOM::create_element(document, HTML::TagNames::option, Namespace::HTML));
+
+    // 3. If text is not the empty string, then append to option a new Text node whose data is text.
+    if (vm().argument_count() > 0) {
+        auto text = TRY(vm().argument(0).to_string(global_object()));
+        if (!text.is_empty()) {
+            auto new_text_node = adopt_ref(*new DOM::Text(document, text));
+            option_element->append_child(new_text_node);
+        }
+    }
+
+    // 4. If value is given, then set an attribute value for option using "value" and value.
+    if (vm().argument_count() > 1) {
+        auto value = TRY(vm().argument(1).to_string(global_object()));
+        option_element->set_attribute(HTML::AttributeNames::value, value);
+    }
+
+    // 5. If defaultSelected is true, then set an attribute value for option using "selected" and the empty string.
+    if (vm().argument_count() > 2) {
+        auto default_selected = vm().argument(2).to_boolean();
+        if (default_selected) {
+            option_element->set_attribute(HTML::AttributeNames::selected, "");
+        }
+    }
+
+    // 6. If selected is true, then set option's selectedness to true; otherwise set its selectedness to false (even if defaultSelected is true).
+    option_element->m_selected = vm().argument(3).to_boolean();
+
+    // 7. Return option.
+    return wrap(global_object(), option_element);
+}
+
+}
diff --git a/Userland/Libraries/LibWeb/Bindings/OptionConstructor.h b/Userland/Libraries/LibWeb/Bindings/OptionConstructor.h
new file mode 100644
index 0000000000..c986d076d0
--- /dev/null
+++ b/Userland/Libraries/LibWeb/Bindings/OptionConstructor.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2022, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/StringView.h>
+#include <LibJS/Runtime/NativeFunction.h>
+
+namespace Web::Bindings {
+
+class OptionConstructor final : public JS::NativeFunction {
+public:
+    explicit OptionConstructor(JS::GlobalObject&);
+    virtual void initialize(JS::GlobalObject&) override;
+    virtual ~OptionConstructor() override = default;
+
+    virtual JS::ThrowCompletionOr<JS::Value> call() override;
+    virtual JS::ThrowCompletionOr<JS::Object*> construct(JS::FunctionObject& new_target) override;
+
+private:
+    virtual bool has_constructor() const override { return true; }
+    virtual StringView class_name() const override { return "OptionConstructor"sv; }
+};
+
+}
diff --git a/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h b/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h
index 74e9d13c7c..0f193d8bfe 100644
--- a/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h
+++ b/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h
@@ -244,6 +244,7 @@
 #include <LibWeb/Bindings/NodeListConstructor.h>
 #include <LibWeb/Bindings/NodeListPrototype.h>
 #include <LibWeb/Bindings/NodePrototype.h>
+#include <LibWeb/Bindings/OptionConstructor.h>
 #include <LibWeb/Bindings/PageTransitionEventConstructor.h>
 #include <LibWeb/Bindings/PageTransitionEventPrototype.h>
 #include <LibWeb/Bindings/PerformanceConstructor.h>
@@ -498,4 +499,5 @@
     ADD_WINDOW_OBJECT_INTERFACE(XMLHttpRequest)                                                     \
     ADD_WINDOW_OBJECT_INTERFACE(XMLHttpRequestEventTarget)                                          \
     ADD_WINDOW_OBJECT_CONSTRUCTOR_AND_PROTOTYPE(Audio, AudioConstructor, HTMLAudioElementPrototype) \
-    ADD_WINDOW_OBJECT_CONSTRUCTOR_AND_PROTOTYPE(Image, ImageConstructor, HTMLImageElementPrototype)
+    ADD_WINDOW_OBJECT_CONSTRUCTOR_AND_PROTOTYPE(Image, ImageConstructor, HTMLImageElementPrototype) \
+    ADD_WINDOW_OBJECT_CONSTRUCTOR_AND_PROTOTYPE(Option, OptionConstructor, HTMLOptionElementPrototype)
diff --git a/Userland/Libraries/LibWeb/CMakeLists.txt b/Userland/Libraries/LibWeb/CMakeLists.txt
index e6140eae1b..04abf8ac34 100644
--- a/Userland/Libraries/LibWeb/CMakeLists.txt
+++ b/Userland/Libraries/LibWeb/CMakeLists.txt
@@ -13,6 +13,7 @@ set(SOURCES
     Bindings/MainThreadVM.cpp
     Bindings/NavigatorObject.cpp
     Bindings/NodeWrapperFactory.cpp
+    Bindings/OptionConstructor.cpp
     Bindings/WindowObject.cpp
     Bindings/WindowProxy.cpp
     Bindings/Wrappable.cpp
diff --git a/Userland/Libraries/LibWeb/Forward.h b/Userland/Libraries/LibWeb/Forward.h
index a54b236caf..48bc54cbc1 100644
--- a/Userland/Libraries/LibWeb/Forward.h
+++ b/Userland/Libraries/LibWeb/Forward.h
@@ -501,6 +501,7 @@ class NodeFilterWrapper;
 class NodeIteratorWrapper;
 class NodeListWrapper;
 class NodeWrapper;
+class OptionConstructor;
 class PageTransitionEventWrapper;
 class PerformanceTimingWrapper;
 class PerformanceWrapper;
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLOptionElement.h b/Userland/Libraries/LibWeb/HTML/HTMLOptionElement.h
index 39a5ca2eb1..d8ce1708f7 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLOptionElement.h
+++ b/Userland/Libraries/LibWeb/HTML/HTMLOptionElement.h
@@ -22,6 +22,7 @@ public:
     void set_selected(bool);
 
 private:
+    friend class Bindings::OptionConstructor;
     friend class HTMLSelectElement;
 
     void parse_attribute(FlyString const& name, String const& value) override;