[WebDriver] Add synchronization for key action (#37403)

Implement action synchronization for key event. Previously only done for
pointer https://github.com/servo/servo/pull/36932 and wheel
https://github.com/servo/servo/pull/37260.

---------

Signed-off-by: PotatoCP <kenzieradityatirtarahardja18@gmail.com>

components/constellation/constellation.rs

@@ -130,9 +130,9 @@ use embedder_traits::user_content_manager::UserContentManager;
 use embedder_traits::{
     AnimationState, CompositorHitTestResult, Cursor, EmbedderMsg, EmbedderProxy,
     FocusSequenceNumber, ImeEvent, InputEvent, JSValue, JavaScriptEvaluationError,
-    JavaScriptEvaluationId, MediaSessionActionType, MediaSessionEvent, MediaSessionPlaybackState,
-    MouseButton, MouseButtonAction, MouseButtonEvent, Theme, ViewportDetails, WebDriverCommandMsg,
-    WebDriverCommandResponse, WebDriverLoadStatus,
+    JavaScriptEvaluationId, KeyboardEvent, MediaSessionActionType, MediaSessionEvent,
+    MediaSessionPlaybackState, MouseButton, MouseButtonAction, MouseButtonEvent, Theme,
+    ViewportDetails, WebDriverCommandMsg, WebDriverCommandResponse, WebDriverLoadStatus,
 };
 use euclid::Size2D;
 use euclid::default::Size2D as UntypedSize2D;
@@ -141,7 +141,7 @@ use ipc_channel::Error as IpcError;
 use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
 use ipc_channel::router::ROUTER;
 use keyboard_types::webdriver::Event as WebDriverInputEvent;
-use keyboard_types::{Key, KeyState, KeyboardEvent, Modifiers};
+use keyboard_types::{Key, KeyState, Modifiers};
 use log::{debug, error, info, trace, warn};
 use media::WindowGLContext;
 use net_traits::pub_domains::reg_host;
@@ -3034,13 +3034,13 @@ where
     }
 
     fn update_active_keybord_modifiers(&mut self, event: &KeyboardEvent) {
-        self.active_keyboard_modifiers = event.modifiers;
+        self.active_keyboard_modifiers = event.event.modifiers;
 
         // `KeyboardEvent::modifiers` contains the pre-existing modifiers before this key was
         // either pressed or released, but `active_keyboard_modifiers` should track the subsequent
         // state. If this event will update that state, we need to ensure that we are tracking what
         // the event changes.
-        let modified_modifier = match event.key {
+        let modified_modifier = match event.event.key {
             Key::Alt => Modifiers::ALT,
             Key::AltGraph => Modifiers::ALT_GRAPH,
             Key::CapsLock => Modifiers::CAPS_LOCK,
@@ -3059,7 +3059,7 @@ where
             Key::Super => Modifiers::META,
             _ => return,
         };
-        match event.state {
+        match event.event.state {
             KeyState::Down => self.active_keyboard_modifiers.insert(modified_modifier),
             KeyState::Up => self.active_keyboard_modifiers.remove(modified_modifier),
         }
@@ -4840,7 +4840,7 @@ where
                             pressed_mouse_buttons: self.pressed_mouse_buttons,
                             active_keyboard_modifiers: event.modifiers,
                             hit_test_result: None,
-                            event: InputEvent::Keyboard(event),
+                            event: InputEvent::Keyboard(KeyboardEvent::new(event)),
                         },
                         WebDriverInputEvent::Composition(event) => ConstellationInputEvent {
                             pressed_mouse_buttons: self.pressed_mouse_buttons,
@@ -4855,7 +4855,14 @@ where
                     }
                 }
             },
-            WebDriverCommandMsg::KeyboardAction(browsing_context_id, event) => {
+            WebDriverCommandMsg::KeyboardAction(
+                browsing_context_id,
+                key_event,
+                msg_id,
+                response_sender,
+            ) => {
+                self.webdriver.input_command_response_sender = Some(response_sender);
+
                 let pipeline_id = match self.browsing_contexts.get(&browsing_context_id) {
                     Some(browsing_context) => browsing_context.pipeline_id,
                     None => {
@@ -4866,13 +4873,15 @@ where
                     Some(pipeline) => pipeline.event_loop.clone(),
                     None => return warn!("{}: KeyboardAction after closure", pipeline_id),
                 };
+                let event = InputEvent::Keyboard(KeyboardEvent::new(key_event.clone()))
+                    .with_webdriver_message_id(msg_id);
                 let control_msg = ScriptThreadMessage::SendInputEvent(
                     pipeline_id,
                     ConstellationInputEvent {
                         pressed_mouse_buttons: self.pressed_mouse_buttons,
-                        active_keyboard_modifiers: event.modifiers,
+                        active_keyboard_modifiers: key_event.modifiers,
                         hit_test_result: None,
-                        event: InputEvent::Keyboard(event),
+                        event,
                     },
                 );
                 if let Err(e) = event_loop.send(control_msg) {

components/script/dom/document.rs

@@ -2365,7 +2365,7 @@ impl Document {
     /// The entry point for all key processing for web content
     pub(crate) fn dispatch_key_event(
         &self,
-        keyboard_event: ::keyboard_types::KeyboardEvent,
+        keyboard_event: ::embedder_traits::KeyboardEvent,
         can_gc: CanGc,
     ) {
         let focused = self.get_focused_element();
@@ -2379,19 +2379,19 @@ impl Document {
 
         let keyevent = KeyboardEvent::new(
             &self.window,
-            DOMString::from(keyboard_event.state.to_string()),
+            DOMString::from(keyboard_event.event.state.to_string()),
             true,
             true,
             Some(&self.window),
             0,
-            keyboard_event.key.clone(),
-            DOMString::from(keyboard_event.code.to_string()),
-            keyboard_event.location as u32,
-            keyboard_event.repeat,
-            keyboard_event.is_composing,
-            keyboard_event.modifiers,
+            keyboard_event.event.key.clone(),
+            DOMString::from(keyboard_event.event.code.to_string()),
+            keyboard_event.event.location as u32,
+            keyboard_event.event.repeat,
+            keyboard_event.event.is_composing,
+            keyboard_event.event.modifiers,
             0,
-            keyboard_event.key.legacy_keycode(),
+            keyboard_event.event.key.legacy_keycode(),
             can_gc,
         );
         let event = keyevent.upcast::<Event>();
@@ -2402,9 +2402,9 @@ impl Document {
         // it MUST prevent the respective beforeinput and input
         // (and keypress if supported) events from being generated
         // TODO: keypress should be deprecated and superceded by beforeinput
-        if keyboard_event.state == KeyState::Down &&
-            is_character_value_key(&(keyboard_event.key)) &&
-            !keyboard_event.is_composing &&
+        if keyboard_event.event.state == KeyState::Down &&
+            is_character_value_key(&(keyboard_event.event.key)) &&
+            !keyboard_event.event.is_composing &&
             cancel_state != EventDefault::Prevented
         {
             // https://w3c.github.io/uievents/#keypress-event-order
@@ -2415,13 +2415,13 @@ impl Document {
                 true,
                 Some(&self.window),
                 0,
-                keyboard_event.key.clone(),
-                DOMString::from(keyboard_event.code.to_string()),
-                keyboard_event.location as u32,
-                keyboard_event.repeat,
-                keyboard_event.is_composing,
-                keyboard_event.modifiers,
-                keyboard_event.key.legacy_charcode(),
+                keyboard_event.event.key.clone(),
+                DOMString::from(keyboard_event.event.code.to_string()),
+                keyboard_event.event.location as u32,
+                keyboard_event.event.repeat,
+                keyboard_event.event.is_composing,
+                keyboard_event.event.modifiers,
+                keyboard_event.event.key.legacy_charcode(),
                 0,
                 can_gc,
             );
@@ -2439,8 +2439,8 @@ impl Document {
             // however *when* we do it is up to us.
             // Here, we're dispatching it after the key event so the script has a chance to cancel it
             // https://www.w3.org/Bugs/Public/show_bug.cgi?id=27337
-            if (keyboard_event.key == Key::Enter || keyboard_event.code == Code::Space) &&
-                keyboard_event.state == KeyState::Up
+            if (keyboard_event.event.key == Key::Enter || keyboard_event.event.code == Code::Space) &&
+                keyboard_event.event.state == KeyState::Up
             {
                 if let Some(elem) = target.downcast::<Element>() {
                     elem.upcast::<Node>()

components/servo/lib.rs

@@ -85,7 +85,9 @@ use gleam::gl::RENDERER;
 use ipc_channel::ipc::{self, IpcSender};
 use ipc_channel::router::ROUTER;
 use javascript_evaluator::JavaScriptEvaluator;
-pub use keyboard_types::*;
+pub use keyboard_types::{
+    Code, CompositionEvent, CompositionState, Key, KeyState, Location, Modifiers,
+};
 use layout::LayoutFactoryImpl;
 use log::{Log, Metadata, Record, debug, warn};
 use media::{GlApi, NativeDisplay, WindowGLContext};

components/servo/webview_delegate.rs

@@ -8,12 +8,11 @@ use base::id::PipelineId;
 use constellation_traits::EmbedderToConstellationMessage;
 use embedder_traits::{
     AllowOrDeny, AuthenticationResponse, ContextMenuResult, Cursor, FilterPattern,
-    GamepadHapticEffectType, InputMethodType, LoadStatus, MediaSessionEvent, Notification,
-    PermissionFeature, RgbColor, ScreenGeometry, SelectElementOptionOrOptgroup, SimpleDialog,
-    WebResourceRequest, WebResourceResponse, WebResourceResponseMsg,
+    GamepadHapticEffectType, InputMethodType, KeyboardEvent, LoadStatus, MediaSessionEvent,
+    Notification, PermissionFeature, RgbColor, ScreenGeometry, SelectElementOptionOrOptgroup,
+    SimpleDialog, WebResourceRequest, WebResourceResponse, WebResourceResponseMsg,
 };
 use ipc_channel::ipc::IpcSender;
-use keyboard_types::KeyboardEvent;
 use serde::Serialize;
 use url::Url;
 use webrender_api::units::{DeviceIntPoint, DeviceIntRect, DeviceIntSize};

components/shared/embedder/input_events.rs

@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
-use keyboard_types::{CompositionEvent, KeyboardEvent};
+use keyboard_types::{Code, CompositionEvent, Key, KeyState, Location, Modifiers};
 use log::error;
 use malloc_size_of_derive::MallocSizeOf;
 use serde::{Deserialize, Serialize};
@@ -53,7 +53,7 @@ impl InputEvent {
             InputEvent::EditingAction(..) => None,
             InputEvent::Gamepad(..) => None,
             InputEvent::Ime(..) => None,
-            InputEvent::Keyboard(..) => None,
+            InputEvent::Keyboard(event) => event.webdriver_id,
             InputEvent::MouseButton(event) => event.webdriver_id,
             InputEvent::MouseMove(event) => event.webdriver_id,
             InputEvent::Touch(..) => None,
@@ -67,7 +67,9 @@ impl InputEvent {
             InputEvent::EditingAction(..) => {},
             InputEvent::Gamepad(..) => {},
             InputEvent::Ime(..) => {},
-            InputEvent::Keyboard(..) => {},
+            InputEvent::Keyboard(ref mut event) => {
+                event.webdriver_id = webdriver_id;
+            },
             InputEvent::MouseButton(ref mut event) => {
                 event.webdriver_id = webdriver_id;
             },
@@ -85,6 +87,51 @@ impl InputEvent {
     }
 }
 
+/// Recreate KeyboardEvent from keyboard_types to pair it with webdriver_id,
+/// which is used for webdriver action synchronization.
+#[derive(Clone, Debug, Default, Deserialize, Serialize)]
+pub struct KeyboardEvent {
+    pub event: ::keyboard_types::KeyboardEvent,
+    webdriver_id: Option<WebDriverMessageId>,
+}
+
+impl KeyboardEvent {
+    pub fn new(keyboard_event: ::keyboard_types::KeyboardEvent) -> Self {
+        Self {
+            event: keyboard_event,
+            webdriver_id: None,
+        }
+    }
+
+    pub fn new_without_event(
+        state: KeyState,
+        key: Key,
+        code: Code,
+        location: Location,
+        modifiers: Modifiers,
+        repeat: bool,
+        is_composing: bool,
+    ) -> Self {
+        Self::new(::keyboard_types::KeyboardEvent {
+            state,
+            key,
+            code,
+            location,
+            modifiers,
+            repeat,
+            is_composing,
+        })
+    }
+
+    pub fn from_state_and_key(state: KeyState, key: Key) -> Self {
+        Self::new(::keyboard_types::KeyboardEvent {
+            state,
+            key,
+            ..::keyboard_types::KeyboardEvent::default()
+        })
+    }
+}
+
 #[derive(Clone, Copy, Debug, Deserialize, Serialize)]
 pub struct MouseButtonEvent {
     pub action: MouseButtonAction,

components/shared/embedder/lib.rs

@@ -25,7 +25,6 @@ use crossbeam_channel::Sender;
 use euclid::{Scale, Size2D};
 use http::{HeaderMap, Method, StatusCode};
 use ipc_channel::ipc::IpcSender;
-pub use keyboard_types::{KeyboardEvent, Modifiers};
 use log::warn;
 use malloc_size_of::malloc_size_of_is_0;
 use malloc_size_of_derive::MallocSizeOf;

components/shared/embedder/webdriver.rs

@@ -42,7 +42,13 @@ pub enum WebDriverCommandMsg {
     /// Act as if keys were pressed in the browsing context with the given ID.
     SendKeys(BrowsingContextId, Vec<WebDriverInputEvent>),
     /// Act as if keys were pressed or release in the browsing context with the given ID.
-    KeyboardAction(BrowsingContextId, KeyboardEvent),
+    KeyboardAction(
+        BrowsingContextId,
+        KeyboardEvent,
+        // Should never be None.
+        Option<WebDriverMessageId>,
+        IpcSender<WebDriverCommandResponse>,
+    ),
     /// Act as if the mouse was clicked in the browsing context with the given ID.
     MouseButtonAction(
         WebViewId,

components/webdriver_server/actions.rs

@@ -157,7 +157,7 @@ impl Handler {
             // Step 1.4. Wait for
             // The user agent event loop has spun enough times to process the DOM events
             // generated by the last invocation of the dispatch tick actions steps.
-            self.wait_for_user_agent_handling_complete(tick_actions)?;
+            self.wait_for_user_agent_handling_complete()?;
             // At least tick duration milliseconds have passed.
             let elapsed = now.elapsed();
             if elapsed.as_millis() < tick_duration as u128 {
@@ -171,29 +171,13 @@ impl Handler {
         Ok(())
     }
 
-    fn wait_for_user_agent_handling_complete(
-        &self,
-        tick_actions: &TickActions,
-    ) -> Result<(), ErrorStatus> {
-        // TODO: Add matches! for key actions
-        // after implmenting webdriver id for key events.
-        let count_non_null_actions_in_tick = tick_actions
-            .iter()
-            .filter(|(_, action)| {
-                matches!(
-                    action,
-                    ActionItem::Pointer(PointerActionItem::Pointer(_)) |
-                        ActionItem::Wheel(WheelActionItem::Wheel(_))
-                )
-            })
-            .count();
-
+    fn wait_for_user_agent_handling_complete(&self) -> Result<(), ErrorStatus> {
         // To ensure we wait for all events to be processed, only the last event
         // in each tick action step holds the message id.
         // Whenever a new event is generated, the message id is passed to it.
         //
-        // Wait for count_non_null_actions_in_tick number of responses
-        for _ in 0..count_non_null_actions_in_tick {
+        // Wait for num_pending_actions number of responses
+        for _ in 0..self.num_pending_actions.get() {
             match self.constellation_receiver.recv() {
                 Ok(response) => {
                     let current_waiting_id = self
@@ -213,6 +197,8 @@ impl Handler {
             };
         }
 
+        self.num_pending_actions.set(0);
+
         Ok(())
     }
 
@@ -320,9 +306,13 @@ impl Handler {
         let keyboard_event = key_input_state.dispatch_keydown(raw_key);
 
         // Step 12
+        self.increment_num_pending_actions();
+        let msg_id = self.current_action_id.get();
         let cmd_msg = WebDriverCommandMsg::KeyboardAction(
             self.session().unwrap().browsing_context_id,
             keyboard_event,
+            msg_id,
+            self.constellation_sender.clone(),
         );
         self.constellation_chan
             .send(EmbedderToConstellationMessage::WebDriverCommand(cmd_msg))
@@ -342,9 +332,13 @@ impl Handler {
 
         if let Some(keyboard_event) = key_input_state.dispatch_keyup(raw_key) {
             // Step 12
+            self.increment_num_pending_actions();
+            let msg_id = self.current_action_id.get();
             let cmd_msg = WebDriverCommandMsg::KeyboardAction(
                 self.session().unwrap().browsing_context_id,
                 keyboard_event,
+                msg_id,
+                self.constellation_sender.clone(),
             );
             self.constellation_chan
                 .send(EmbedderToConstellationMessage::WebDriverCommand(cmd_msg))
@@ -367,6 +361,7 @@ impl Handler {
         }
         pointer_input_state.pressed.insert(action.button);
 
+        self.increment_num_pending_actions();
         let msg_id = self.current_action_id.get();
         let cmd_msg = WebDriverCommandMsg::MouseButtonAction(
             session.webview_id,
@@ -397,6 +392,7 @@ impl Handler {
         }
         pointer_input_state.pressed.remove(&action.button);
 
+        self.increment_num_pending_actions();
         let msg_id = self.current_action_id.get();
         let cmd_msg = WebDriverCommandMsg::MouseButtonAction(
             session.webview_id,
@@ -523,6 +519,7 @@ impl Handler {
             if x != current_x || y != current_y || last {
                 // Step 7.2
                 let msg_id = if last {
+                    self.increment_num_pending_actions();
                     self.current_action_id.get()
                 } else {
                     None
@@ -660,6 +657,7 @@ impl Handler {
         if delta_x != 0 || delta_y != 0 || last {
             // Perform implementation-specific action dispatch steps
             let msg_id = if last {
+                self.increment_num_pending_actions();
                 self.current_action_id.get()
             } else {
                 None

components/webdriver_server/lib.rs

@@ -227,6 +227,9 @@ struct Handler {
     current_action_id: Cell<Option<WebDriverMessageId>>,
 
     resize_timeout: u32,
+
+    /// Number of pending actions of which WebDriver is waiting for responses.
+    num_pending_actions: Cell<u32>,
 }
 
 #[derive(Clone, Copy, Debug, PartialEq)]
@@ -459,9 +462,16 @@ impl Handler {
             id_generator: WebDriverMessageIdGenerator::new(),
             current_action_id: Cell::new(None),
             resize_timeout: 500,
+            num_pending_actions: Cell::new(0),
         }
     }
 
+    fn increment_num_pending_actions(&self) {
+        // Increase the num_pending_actions by one every time we dispatch non null actions.
+        self.num_pending_actions
+            .set(self.num_pending_actions.get() + 1);
+    }
+
     fn focus_webview_id(&self) -> WebDriverResult<WebViewId> {
         debug!("Getting focused context.");
         let (sender, receiver) = ipc::channel().unwrap();

ports/servoshell/desktop/app_state.rs

@@ -8,7 +8,7 @@ use std::path::PathBuf;
 use std::rc::Rc;
 
 use euclid::Vector2D;
-use keyboard_types::{Key, KeyboardEvent, Modifiers, ShortcutMatcher};
+use keyboard_types::{Key, Modifiers, ShortcutMatcher};
 use log::{error, info};
 use servo::base::id::WebViewId;
 use servo::config::{opts, pref};
@@ -17,8 +17,8 @@ use servo::webrender_api::ScrollLocation;
 use servo::webrender_api::units::{DeviceIntPoint, DeviceIntSize};
 use servo::{
     AllowOrDenyRequest, AuthenticationRequest, FilterPattern, FormControl, GamepadHapticEffectType,
-    LoadStatus, PermissionRequest, Servo, ServoDelegate, ServoError, SimpleDialog, TouchEventType,
-    WebView, WebViewBuilder, WebViewDelegate,
+    KeyboardEvent, LoadStatus, PermissionRequest, Servo, ServoDelegate, ServoError, SimpleDialog,
+    TouchEventType, WebView, WebViewBuilder, WebViewDelegate,
 };
 use url::Url;
 
@@ -314,7 +314,7 @@ impl RunningAppState {
     /// Handle servoshell key bindings that may have been prevented by the page in the focused webview.
     fn handle_overridable_key_bindings(&self, webview: ::servo::WebView, event: KeyboardEvent) {
         let origin = webview.rect().min.ceil().to_i32();
-        ShortcutMatcher::from_event(event)
+        ShortcutMatcher::from_event(event.event)
             .shortcut(CMD_OR_CONTROL, '=', || {
                 webview.set_zoom(1.1);
             })

ports/servoshell/desktop/headed_window.rs

@@ -184,16 +184,16 @@ impl Window {
             // no keyboard event is emitted. A dummy event is created in this case.
             (KeyboardEvent::default(), None)
         };
-        event.key = Key::Character(character.to_string());
+        event.event.key = Key::Character(character.to_string());
 
-        if event.state == KeyState::Down {
+        if event.event.state == KeyState::Down {
             // Ensure that when we receive a keyup event from winit, we are able
             // to infer that it's related to this character and set the event
             // properties appropriately.
             if let Some(key_code) = key_code {
                 self.keys_down
                     .borrow_mut()
-                    .insert(key_code, event.key.clone());
+                    .insert(key_code, event.event.key.clone());
             }
         }
 
@@ -223,20 +223,24 @@ impl Window {
             }
         }
 
-        if keyboard_event.state == KeyState::Down && keyboard_event.key == Key::Unidentified {
+        if keyboard_event.event.state == KeyState::Down &&
+            keyboard_event.event.key == Key::Unidentified
+        {
             // If pressed and probably printable, we expect a ReceivedCharacter event.
             // Wait for that to be received and don't queue any event right now.
             self.last_pressed
                 .set(Some((keyboard_event, Some(winit_event.logical_key))));
             return;
-        } else if keyboard_event.state == KeyState::Up && keyboard_event.key == Key::Unidentified {
+        } else if keyboard_event.event.state == KeyState::Up &&
+            keyboard_event.event.key == Key::Unidentified
+        {
             // If release and probably printable, this is following a ReceiverCharacter event.
             if let Some(key) = self.keys_down.borrow_mut().remove(&winit_event.logical_key) {
-                keyboard_event.key = key;
+                keyboard_event.event.key = key;
             }
         }
 
-        if keyboard_event.key != Key::Unidentified {
+        if keyboard_event.event.key != Key::Unidentified {
             self.last_pressed.set(None);
             let xr_poses = self.xr_window_poses.borrow();
             for xr_window_pose in &*xr_poses {
@@ -284,7 +288,7 @@ impl Window {
         };
 
         let mut handled = true;
-        ShortcutMatcher::from_event(key_event.clone())
+        ShortcutMatcher::from_event(key_event.event.clone())
             .shortcut(CMD_OR_CONTROL, 'R', || focused_webview.reload())
             .shortcut(CMD_OR_CONTROL, 'W', || {
                 state.close_webview(focused_webview.id());
@@ -828,14 +832,14 @@ impl servo::webxr::glwindow::GlWindow for XRWindow {
 
 impl XRWindowPose {
     fn handle_xr_translation(&self, input: &KeyboardEvent) {
-        if input.state != KeyState::Down {
+        if input.event.state != KeyState::Down {
             return;
         }
         const NORMAL_TRANSLATE: f32 = 0.1;
         const QUICK_TRANSLATE: f32 = 1.0;
         let mut x = 0.0;
         let mut z = 0.0;
-        match input.key {
+        match input.event.key {
             Key::Character(ref k) => match &**k {
                 "w" => z = -NORMAL_TRANSLATE,
                 "W" => z = -QUICK_TRANSLATE,

ports/servoshell/desktop/keyutils.rs

@@ -2,7 +2,8 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
-use keyboard_types::{Code, Key, KeyState, KeyboardEvent, Location, Modifiers};
+use keyboard_types::{Code, Key, KeyState, Location, Modifiers};
+use servo::KeyboardEvent;
 use winit::event::{ElementState, KeyEvent};
 use winit::keyboard::{
     Key as WinitKey, KeyCode, KeyLocation as WinitKeyLocation, ModifiersState, NamedKey,
@@ -583,13 +584,13 @@ fn keyboard_modifiers_from_winit_modifiers(mods: ModifiersState) -> Modifiers {
 }
 
 pub fn keyboard_event_from_winit(key_event: &KeyEvent, state: ModifiersState) -> KeyboardEvent {
-    KeyboardEvent {
-        state: KeyState::from_winit_key_event(key_event),
-        key: Key::from_winit_key_event(key_event),
-        code: Code::from_winit_key_event(key_event),
-        location: Location::from_winit_key_event(key_event),
-        modifiers: keyboard_modifiers_from_winit_modifiers(state),
-        repeat: false,
-        is_composing: false,
-    }
+    KeyboardEvent::new_without_event(
+        KeyState::from_winit_key_event(key_event),
+        Key::from_winit_key_event(key_event),
+        Code::from_winit_key_event(key_event),
+        Location::from_winit_key_event(key_event),
+        keyboard_modifiers_from_winit_modifiers(state),
+        false,
+        false,
+    )
 }

ports/servoshell/egl/app_state.rs

@@ -626,22 +626,14 @@ impl RunningAppState {
     }
 
     pub fn key_down(&self, key: Key) {
-        let key_event = KeyboardEvent {
-            state: KeyState::Down,
-            key,
-            ..KeyboardEvent::default()
-        };
+        let key_event = KeyboardEvent::from_state_and_key(KeyState::Down, key);
         self.active_webview()
             .notify_input_event(InputEvent::Keyboard(key_event));
         self.perform_updates();
     }
 
     pub fn key_up(&self, key: Key) {
-        let key_event = KeyboardEvent {
-            state: KeyState::Up,
-            key,
-            ..KeyboardEvent::default()
-        };
+        let key_event = KeyboardEvent::from_state_and_key(KeyState::Up, key);
         self.active_webview()
             .notify_input_event(InputEvent::Keyboard(key_event));
         self.perform_updates();
@@ -653,22 +645,20 @@ impl RunningAppState {
             return;
         }
         let active_webview = self.active_webview();
-        active_webview.notify_input_event(InputEvent::Keyboard(KeyboardEvent {
-            state: KeyState::Down,
-            key: Key::Process,
-            ..KeyboardEvent::default()
-        }));
+        active_webview.notify_input_event(InputEvent::Keyboard(KeyboardEvent::from_state_and_key(
+            KeyState::Down,
+            Key::Process,
+        )));
         active_webview.notify_input_event(InputEvent::Ime(ImeEvent::Composition(
             CompositionEvent {
                 state: CompositionState::End,
                 data: text,
             },
         )));
-        active_webview.notify_input_event(InputEvent::Keyboard(KeyboardEvent {
-            state: KeyState::Up,
-            key: Key::Process,
-            ..KeyboardEvent::default()
-        }));
+        active_webview.notify_input_event(InputEvent::Keyboard(KeyboardEvent::from_state_and_key(
+            KeyState::Up,
+            Key::Process,
+        )));
         self.perform_updates();
     }
 

tests/wpt/meta/webdriver/tests/classic/perform_actions/key.py.ini

@@ -5,9 +5,6 @@
   [test_key_down_closes_browsing_context]
     expected: FAIL
 
-  [test_backspace_erases_keys]
-    expected: FAIL
-
   [test_element_in_shadow_tree[outer-open\]]
     expected: FAIL
 

tests/wpt/meta/webdriver/tests/classic/perform_actions/key_shortcuts.py.ini

@@ -1,6 +0,0 @@
-[key_shortcuts.py]
-  [test_mod_a_mod_c_right_mod_v_pastes_text]
-    expected: FAIL
-
-  [test_mod_a_mod_x_deletes_all_text]
-    expected: FAIL

tests/wpt/meta/webdriver/tests/classic/perform_actions/key_special_keys.py.ini

@@ -1,7 +1,4 @@
 [key_special_keys.py]
-  [test_codepoint_keys_behave_correctly[\\U0001f60d\]]
-    expected: FAIL
-
   [test_codepoint_keys_behave_correctly[\\u0ba8\\u0bbf\]]
     expected: FAIL