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@@ -466,6 +466,64 @@ ErrorOr<JsonValue, HttpError> Session::find_elements(JsonValue const& payload)
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return JsonValue(result);
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}
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+// 12.3.4 Find Element From Element, https://w3c.github.io/webdriver/#dfn-find-element-from-element
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+ErrorOr<JsonValue, HttpError> Session::find_element_from_element(JsonValue const& payload, StringView parameter_element_id)
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+{
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+ if (!payload.is_object())
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+ return HttpError { 400, "invalid argument", "Payload is not a JSON object" };
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+
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+ auto const& properties = payload.as_object();
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+ // 1. Let location strategy be the result of getting a property called "using".
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+ if (!properties.has("using"sv))
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+ return HttpError { 400, "invalid argument", "No property called 'using' present" };
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+ auto const& maybe_location_strategy = properties.get("using"sv);
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+ if (!maybe_location_strategy.is_string())
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+ return HttpError { 400, "invalid argument", "Property 'using' is not a String" };
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+
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+ auto location_strategy = maybe_location_strategy.to_string();
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+
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+ // 2. If location strategy is not present as a keyword in the table of location strategies, return error with error code invalid argument.
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+ if (!s_locator_strategies.first_matching([&](LocatorStrategy const& match) { return match.name == location_strategy; }).has_value())
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+ return HttpError { 400, "invalid argument", "No valid location strategy" };
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+
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+ // 3. Let selector be the result of getting a property called "value".
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+ // 4. If selector is undefined, return error with error code invalid argument.
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+ if (!properties.has("value"sv))
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+ return HttpError { 400, "invalid argument", "No property called 'value' present" };
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+ auto const& maybe_selector = properties.get("value"sv);
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+ if (!maybe_selector.is_string())
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+ return HttpError { 400, "invalid argument", "Property 'value' is not a String" };
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+
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+ auto selector = maybe_selector.to_string();
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+
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+ // 5. If the current browsing context is no longer open, return error with error code no such window.
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+ auto current_window = get_window_object();
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+ if (!current_window.has_value())
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+ return HttpError { 404, "no such window", "Window not found" };
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+
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+ // FIXME: 6. Handle any user prompts and return its value if it is an error.
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+
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+ // FIXME: 7. Let start node be the result of trying to get a known connected element with url variable element id.
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+ // NOTE: The whole concept of "connected elements" is not implemented yet. See get_or_create_a_web_element_reference()
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+ // For now the element is only represented by its ID
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+
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+ auto maybe_element_id = parameter_element_id.to_int();
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+ if (!maybe_element_id.has_value())
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+ return HttpError { 400, "invalid argument", "Element ID is not an i32" };
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+
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+ auto element_id = maybe_element_id.release_value();
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+ LocalElement start_node = { element_id };
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+
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+ // 8. Let result be the value of trying to Find with start node, location strategy, and selector.
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+ auto result = TRY(find(start_node, location_strategy, selector));
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+
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+ // 9. If result is empty, return error with error code no such element. Otherwise, return the first element of result.
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+ if (result.is_empty())
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+ return HttpError { 404, "no such element", "the requested element does not exist" };
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+
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+ return JsonValue(result.at(0));
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+}
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+
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// https://w3c.github.io/webdriver/#dfn-serialized-cookie
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static JsonObject serialize_cookie(Web::Cookie::Cookie const& cookie)
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{
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Tobias Christiansen