Browser+WebContent+WebDriver: Move Get Element Property to WebContent

Userland/Services/WebContent/ConnectionFromClient.cpp

@@ -495,28 +495,6 @@ void ConnectionFromClient::scroll_element_into_view(i32 element_id)
     element->scroll_into_view(options);
 }
 
-Messages::WebContentServer::GetElementPropertyResponse ConnectionFromClient::get_element_property(i32 element_id, String const& name)
-{
-    auto element = find_element_by_id(element_id);
-    if (!element.has_value())
-        return Optional<String> {};
-
-    auto property_or_error = element->get(name);
-    if (property_or_error.is_throw_completion())
-        return Optional<String> {};
-
-    auto property = property_or_error.release_value();
-
-    if (property.is_undefined())
-        return Optional<String> {};
-
-    auto string_or_error = property.to_string(element->vm());
-    if (string_or_error.is_error())
-        return Optional<String> {};
-
-    return { string_or_error.release_value() };
-}
-
 Messages::WebContentServer::GetActiveDocumentsTypeResponse ConnectionFromClient::get_active_documents_type()
 {
     auto* active_document = page().top_level_browsing_context().active_document();

Userland/Services/WebContent/ConnectionFromClient.h

@@ -84,7 +84,6 @@ private:
     virtual void js_console_request_messages(i32) override;
 
     virtual void scroll_element_into_view(i32 element_id) override;
-    virtual Messages::WebContentServer::GetElementPropertyResponse get_element_property(i32 element_id, String const& name) override;
     virtual Messages::WebContentServer::GetActiveDocumentsTypeResponse get_active_documents_type() override;
     virtual Messages::WebContentServer::GetComputedValueForElementResponse get_computed_value_for_element(i32 element_id, String const& property_name) override;
     virtual Messages::WebContentServer::GetElementTextResponse get_element_text(i32 element_id) override;

Userland/Services/WebContent/WebContentServer.ipc

@@ -43,7 +43,6 @@ endpoint WebContentServer
     js_console_request_messages(i32 start_index) =|
 
     scroll_element_into_view(i32 element_id) => ()
-    get_element_property(i32 element_id, String name) => (Optional<String> property)
     get_active_documents_type() => (String type)
     get_computed_value_for_element(i32 element_id, String property_name) => (String computed_value)
     get_element_text(i32 element_id) => (String text)

Userland/Services/WebContent/WebDriverClient.ipc

@@ -15,4 +15,5 @@ endpoint WebDriverClient {
     find_elements_from_element(JsonValue payload, String element_id) => (Web::WebDriver::Response response)
     is_element_selected(String element_id) => (Web::WebDriver::Response response)
     get_element_attribute(String element_id, String name) => (Web::WebDriver::Response response)
+    get_element_property(String element_id, String name) => (Web::WebDriver::Response response)
 }

Userland/Services/WebContent/WebDriverConnection.cpp

@@ -11,6 +11,7 @@
 #include <AK/JsonObject.h>
 #include <AK/JsonValue.h>
 #include <AK/Vector.h>
+#include <LibJS/Runtime/Value.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOM/Element.h>
 #include <LibWeb/HTML/AttributeNames.h>
@@ -524,6 +525,36 @@ Messages::WebDriverClient::GetElementAttributeResponse WebDriverConnection::get_
     return make_success_response({});
 }
 
+// 12.4.3 Get Element Property, https://w3c.github.io/webdriver/#dfn-get-element-property
+Messages::WebDriverClient::GetElementPropertyResponse WebDriverConnection::get_element_property(String const& element_id, String const& name)
+{
+    // 1. If the current browsing context is no longer open, return error with error code no such window.
+    TRY(ensure_open_top_level_browsing_context());
+
+    // FIXME: 2. Handle any user prompts and return its value if it is an error.
+
+    // 3. Let element be the result of trying to get a known connected element with url variable element id.
+    auto* element = TRY(get_known_connected_element(element_id));
+
+    Optional<String> result;
+
+    // 4. Let property be the result of calling the Object.[[GetProperty]](name) on element.
+    if (auto property_or_error = element->get(name); !property_or_error.is_throw_completion()) {
+        auto property = property_or_error.release_value();
+
+        // 5. Let result be the value of property if not undefined, or null.
+        if (!property.is_undefined()) {
+            if (auto string_or_error = property.to_string(element->vm()); !string_or_error.is_error())
+                result = string_or_error.release_value();
+        }
+    }
+
+    // 6. Return success with data result.
+    if (result.has_value())
+        return make_success_response(result.release_value());
+    return make_success_response({});
+}
+
 // https://w3c.github.io/webdriver/#dfn-no-longer-open
 ErrorOr<void, Web::WebDriver::Error> WebDriverConnection::ensure_open_top_level_browsing_context()
 {

Userland/Services/WebContent/WebDriverConnection.h

@@ -45,6 +45,7 @@ private:
     virtual Messages::WebDriverClient::FindElementsFromElementResponse find_elements_from_element(JsonValue const& payload, String const& element_id) override;
     virtual Messages::WebDriverClient::IsElementSelectedResponse is_element_selected(String const& element_id) override;
     virtual Messages::WebDriverClient::GetElementAttributeResponse get_element_attribute(String const& element_id, String const& name) override;
+    virtual Messages::WebDriverClient::GetElementPropertyResponse get_element_property(String const& element_id, String const& name) override;
 
     ErrorOr<void, Web::WebDriver::Error> ensure_open_top_level_browsing_context();
     void restore_the_window();