script(webdriver): Check if element is keyboard interactable in element send keys (#38235)

Step 7.6 of remote end steps of [Element Send
Keys](https://w3c.github.io/webdriver/#element-send-keys)
> If element is not
[keyboard-interactable](https://w3c.github.io/webdriver/#dfn-keyboard-interactable),
return [error](https://w3c.github.io/webdriver/#dfn-error) with [error
code](https://w3c.github.io/webdriver/#dfn-error-code) [element not
interactable](https://w3c.github.io/webdriver/#dfn-element-not-interactable).

---------

Signed-off-by: PotatoCP <Kenzie.Raditya.Tirtarahardja@huawei.com>

components/script/dom/element.rs

@@ -1740,6 +1740,15 @@ impl Element {
         }
     }
 
+    /// <https://dom.spec.whatwg.org/#document-element>
+    pub(crate) fn is_document_element(&self) -> bool {
+        if let Some(ref document_element) = self.owner_document().GetDocumentElement() {
+            **document_element == *self
+        } else {
+            false
+        }
+    }
+
     pub(crate) fn is_focusable_area(&self) -> bool {
         if self.is_actually_disabled() {
             return false;

components/script/webdriver_handlers.rs

@@ -61,6 +61,7 @@ use crate::dom::domrect::DOMRect;
 use crate::dom::element::Element;
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::globalscope::GlobalScope;
+use crate::dom::htmlbodyelement::HTMLBodyElement;
 use crate::dom::htmldatalistelement::HTMLDataListElement;
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmliframeelement::HTMLIFrameElement;
@@ -1069,6 +1070,11 @@ pub(crate) fn handle_get_element_shadow_root(
         .unwrap();
 }
 
+/// <https://w3c.github.io/webdriver/#dfn-keyboard-interactable>
+fn is_keyboard_interactable(element: &Element) -> bool {
+    element.is_focusable_area() || element.is::<HTMLBodyElement>() || element.is_document_element()
+}
+
 fn handle_send_keys_file(
     file_input: &HTMLInputElement,
     text: &str,
@@ -1169,10 +1175,15 @@ pub(crate) fn handle_will_send_keys(
 
                 // Step 7. If file is false or the session's strict file interactability
                 if file_input.is_none() || strict_file_interactability {
-                    // TODO: Step 7.1. Scroll Into View
-                    // TODO: Step 7.2 - 7.6
-                    // Wait until element become Keyboard-interactable
-                    // or return error with error code element not interactable.
+                    // TODO(24059): Step 7.1. Scroll Into View
+                    // TODO: Step 7.2 - 7.5
+                    // Wait until element become keyboard-interactable
+
+                    // Step 7.6. If element is not keyboard-interactable,
+                    // return ErrorStatus::ElementNotInteractable.
+                    if !is_keyboard_interactable(&element) {
+                        return Err(ErrorStatus::ElementNotInteractable);
+                    }
 
                     match element.downcast::<HTMLElement>() {
                         Some(element) => {

tests/wpt/meta/webdriver/tests/classic/element_send_keys/interactability.py.ini

@@ -5,9 +5,6 @@
   [test_readonly_element]
     expected: FAIL
 
-  [test_not_a_focusable_element]
-    expected: FAIL
-
   [test_display_none]
     expected: FAIL
 
@@ -16,6 +13,3 @@
 
   [test_hidden]
     expected: FAIL
-
-  [test_disabled]
-    expected: FAIL