CanGc fixes and checks in multiple files (#33836)

* CanGc fixes and checks in multiple files

Signed-off-by: L Ashwin B <lashwinib@gmail.com>

* CanGc fixes in storageevent.rs

Signed-off-by: L Ashwin B <lashwinib@gmail.com>

---------

Signed-off-by: L Ashwin B <lashwinib@gmail.com>

9 files changed, 78 insertions, 63 deletions

diff --git a/components/script/dom/bindings/codegen/Bindings.conf b/components/script/dom/bindings/codegen/Bindings.conf
index 1316b444e5b..9b38ddb4bc2 100644
--- a/components/script/dom/bindings/codegen/Bindings.conf
+++ b/components/script/dom/bindings/codegen/Bindings.conf
@@ -183,6 +183,7 @@ DOMInterfaces = {
 
 'RTCPeerConnection': {
     'inRealms': ['AddIceCandidate', 'CreateAnswer', 'CreateOffer', 'SetLocalDescription', 'SetRemoteDescription'],
+    'canGc': ['Close'],
 },
 
 'Range': {
diff --git a/components/script/dom/document.rs b/components/script/dom/document.rs
index e9b97d1c1a4..bc0f8c1b8e6 100644
--- a/components/script/dom/document.rs
+++ b/components/script/dom/document.rs
@@ -4645,6 +4645,7 @@ impl DocumentMethods for Document {
             "storageevent" => Ok(DomRoot::upcast(StorageEvent::new_uninitialized(
                 &self.window,
                 "".into(),
+                can_gc,
             ))),
             "touchevent" => Ok(DomRoot::upcast(TouchEvent::new_uninitialized(
                 &self.window,
@@ -4652,7 +4653,10 @@ impl DocumentMethods for Document {
                 &TouchList::new(&self.window, &[]),
                 &TouchList::new(&self.window, &[]),
             ))),
-            "uievent" | "uievents" => Ok(DomRoot::upcast(UIEvent::new_uninitialized(&self.window))),
+            "uievent" | "uievents" => Ok(DomRoot::upcast(UIEvent::new_uninitialized(
+                &self.window,
+                can_gc,
+            ))),
             _ => Err(Error::NotSupported),
         }
     }
diff --git a/components/script/dom/history.rs b/components/script/dom/history.rs
index f0be9b8ceac..b9d0a3231cb 100644
--- a/components/script/dom/history.rs
+++ b/components/script/dom/history.rs
@@ -31,7 +31,7 @@ use crate::dom::globalscope::GlobalScope;
 use crate::dom::hashchangeevent::HashChangeEvent;
 use crate::dom::popstateevent::PopStateEvent;
 use crate::dom::window::Window;
-use crate::script_runtime::JSContext;
+use crate::script_runtime::{CanGc, JSContext};
 
 enum PushOrReplace {
     Push,
@@ -83,7 +83,7 @@ impl History {
     /// <https://html.spec.whatwg.org/multipage/#history-traversal>
     /// Steps 5-16
     #[allow(unsafe_code)]
-    pub fn activate_state(&self, state_id: Option<HistoryStateId>, url: ServoUrl) {
+    pub fn activate_state(&self, state_id: Option<HistoryStateId>, url: ServoUrl, can_gc: CanGc) {
         // Steps 5
         let document = self.window.Document();
         let old_url = document.url().clone();
@@ -139,6 +139,7 @@ impl History {
                 self.window.upcast::<EventTarget>(),
                 &self.window,
                 unsafe { HandleValue::from_raw(self.state.handle()) },
+                can_gc,
             );
         }
 
diff --git a/components/script/dom/popstateevent.rs b/components/script/dom/popstateevent.rs
index bfd388ded45..ff24a1f1028 100644
--- a/components/script/dom/popstateevent.rs
+++ b/components/script/dom/popstateevent.rs
@@ -69,16 +69,14 @@ impl PopStateEvent {
         ev
     }
 
-    pub fn dispatch_jsval(target: &EventTarget, window: &Window, state: HandleValue) {
-        let event = PopStateEvent::new(
-            window,
-            None,
-            atom!("popstate"),
-            false,
-            false,
-            state,
-            CanGc::note(),
-        );
+    pub fn dispatch_jsval(
+        target: &EventTarget,
+        window: &Window,
+        state: HandleValue,
+        can_gc: CanGc,
+    ) {
+        let event =
+            PopStateEvent::new(window, None, atom!("popstate"), false, false, state, can_gc);
         event.upcast::<Event>().fire(target);
     }
 }
diff --git a/components/script/dom/rtcpeerconnection.rs b/components/script/dom/rtcpeerconnection.rs
index 9f2827b8c32..7582444b948 100644
--- a/components/script/dom/rtcpeerconnection.rs
+++ b/components/script/dom/rtcpeerconnection.rs
@@ -749,7 +749,7 @@ impl RTCPeerConnectionMethods for RTCPeerConnection {
     }
 
     /// <https://www.w3.org/TR/webrtc/#dom-rtcpeerconnection-close>
-    fn Close(&self) {
+    fn Close(&self, can_gc: CanGc) {
         // Step 1
         if self.closed.get() {
             return;
@@ -765,7 +765,7 @@ impl RTCPeerConnectionMethods for RTCPeerConnection {
 
         // Step 6
         for (_, val) in self.data_channels.borrow().iter() {
-            val.on_state_change(DataChannelState::Closed, CanGc::note());
+            val.on_state_change(DataChannelState::Closed, can_gc);
         }
 
         // Step 7-10
diff --git a/components/script/dom/storageevent.rs b/components/script/dom/storageevent.rs
index ee7d48d70ff..d9e32705c3a 100644
--- a/components/script/dom/storageevent.rs
+++ b/components/script/dom/storageevent.rs
@@ -49,8 +49,12 @@ impl StorageEvent {
         }
     }
 
-    pub fn new_uninitialized(window: &Window, url: DOMString) -> DomRoot<StorageEvent> {
-        Self::new_uninitialized_with_proto(window, None, url, CanGc::note())
+    pub fn new_uninitialized(
+        window: &Window,
+        url: DOMString,
+        can_gc: CanGc,
+    ) -> DomRoot<StorageEvent> {
+        Self::new_uninitialized_with_proto(window, None, url, can_gc)
     }
 
     fn new_uninitialized_with_proto(
diff --git a/components/script/dom/uievent.rs b/components/script/dom/uievent.rs
index dc729233bf0..b9da7792908 100644
--- a/components/script/dom/uievent.rs
+++ b/components/script/dom/uievent.rs
@@ -38,8 +38,8 @@ impl UIEvent {
         }
     }
 
-    pub fn new_uninitialized(window: &Window) -> DomRoot<UIEvent> {
-        Self::new_uninitialized_with_proto(window, None, CanGc::note())
+    pub fn new_uninitialized(window: &Window, can_gc: CanGc) -> DomRoot<UIEvent> {
+        Self::new_uninitialized_with_proto(window, None, can_gc)
     }
 
     fn new_uninitialized_with_proto(
@@ -57,16 +57,10 @@ impl UIEvent {
         cancelable: EventCancelable,
         view: Option<&Window>,
         detail: i32,
+        can_gc: CanGc,
     ) -> DomRoot<UIEvent> {
         Self::new_with_proto(
-            window,
-            None,
-            type_,
-            can_bubble,
-            cancelable,
-            view,
-            detail,
-            CanGc::note(),
+            window, None, type_, can_bubble, cancelable, view, detail, can_gc,
         )
     }
 
diff --git a/components/script/script_thread.rs b/components/script/script_thread.rs
index 7030285ab60..29a762ba80d 100644
--- a/components/script/script_thread.rs
+++ b/components/script/script_thread.rs
@@ -1463,9 +1463,10 @@ impl ScriptThread {
         id: PipelineId,
         size: WindowSizeData,
         size_type: WindowSizeType,
+        can_gc: CanGc,
     ) {
         self.profile_event(ScriptThreadEventCategory::Resize, Some(id), || {
-            self.handle_resize_event(id, size, size_type);
+            self.handle_resize_event(id, size, size_type, can_gc);
         });
     }
 
@@ -1694,7 +1695,7 @@ impl ScriptThread {
 
             if let Some((size, size_type)) = document.window().take_unhandled_resize_event() {
                 // Resize steps.
-                self.run_the_resize_steps(pipeline_id, size, size_type);
+                self.run_the_resize_steps(pipeline_id, size, size_type, can_gc);
 
                 // Evaluate media queries and report changes.
                 document
@@ -2366,7 +2367,7 @@ impl ScriptThread {
                 can_gc,
             ),
             ConstellationControlMsg::UpdateHistoryState(pipeline_id, history_state_id, url) => {
-                self.handle_update_history_state_msg(pipeline_id, history_state_id, url)
+                self.handle_update_history_state_msg(pipeline_id, history_state_id, url, can_gc)
             },
             ConstellationControlMsg::RemoveHistoryStates(pipeline_id, history_states) => {
                 self.handle_remove_history_states(pipeline_id, history_states)
@@ -2375,7 +2376,7 @@ impl ScriptThread {
                 self.handle_focus_iframe_msg(parent_pipeline_id, frame_id)
             },
             ConstellationControlMsg::WebDriverScriptCommand(pipeline_id, msg) => {
-                self.handle_webdriver_msg(pipeline_id, msg)
+                self.handle_webdriver_msg(pipeline_id, msg, can_gc)
             },
             ConstellationControlMsg::WebFontLoaded(pipeline_id, success) => {
                 self.handle_web_font_loaded(pipeline_id, success)
@@ -2630,7 +2631,12 @@ impl ScriptThread {
         }
     }
 
-    fn handle_webdriver_msg(&self, pipeline_id: PipelineId, msg: WebDriverScriptCommand) {
+    fn handle_webdriver_msg(
+        &self,
+        pipeline_id: PipelineId,
+        msg: WebDriverScriptCommand,
+        can_gc: CanGc,
+    ) {
         // https://github.com/servo/servo/issues/23535
         // These two messages need different treatment since the JS script might mutate
         // `self.documents`, which would conflict with the immutable borrow of it that
@@ -2777,7 +2783,7 @@ impl ScriptThread {
                 webdriver_handlers::handle_get_active_element(&documents, pipeline_id, reply)
             },
             WebDriverScriptCommand::GetPageSource(reply) => {
-                webdriver_handlers::handle_get_page_source(&documents, pipeline_id, reply)
+                webdriver_handlers::handle_get_page_source(&documents, pipeline_id, reply, can_gc)
             },
             WebDriverScriptCommand::GetCookies(reply) => {
                 webdriver_handlers::handle_get_cookies(&documents, pipeline_id, reply)
@@ -2818,6 +2824,7 @@ impl ScriptThread {
                     pipeline_id,
                     node_id,
                     reply,
+                    can_gc,
                 )
             },
             WebDriverScriptCommand::GetElementText(node_id, reply) => {
@@ -2829,6 +2836,7 @@ impl ScriptThread {
                     pipeline_id,
                     node_id,
                     reply,
+                    can_gc,
                 )
             },
             WebDriverScriptCommand::GetBrowsingContextId(webdriver_frame_id, reply) => {
@@ -3125,6 +3133,7 @@ impl ScriptThread {
         pipeline_id: PipelineId,
         history_state_id: Option<HistoryStateId>,
         url: ServoUrl,
+        can_gc: CanGc,
     ) {
         let window = self.documents.borrow().find_window(pipeline_id);
         match window {
@@ -3134,7 +3143,9 @@ impl ScriptThread {
                     pipeline_id
                 );
             },
-            Some(window) => window.History().activate_state(history_state_id, url),
+            Some(window) => window
+                .History()
+                .activate_state(history_state_id, url, can_gc),
         }
     }
 
@@ -4018,6 +4029,7 @@ impl ScriptThread {
         pipeline_id: PipelineId,
         new_size: WindowSizeData,
         size_type: WindowSizeType,
+        can_gc: CanGc,
     ) {
         let document = match self.documents.borrow().find_document(pipeline_id) {
             Some(document) => document,
@@ -4046,6 +4058,7 @@ impl ScriptThread {
                 EventCancelable::NotCancelable,
                 Some(window),
                 0i32,
+                can_gc,
             );
             uievent.upcast::<Event>().fire(window.upcast());
         }
diff --git a/components/script/webdriver_handlers.rs b/components/script/webdriver_handlers.rs
index e43c2047490..cbe74aa1263 100644
--- a/components/script/webdriver_handlers.rs
+++ b/components/script/webdriver_handlers.rs
@@ -374,7 +374,7 @@ pub fn handle_get_browsing_context_id(
 }
 
 // https://w3c.github.io/webdriver/#dfn-center-point
-fn get_element_in_view_center_point(element: &Element) -> Option<Point2D<i64>> {
+fn get_element_in_view_center_point(element: &Element, can_gc: CanGc) -> Option<Point2D<i64>> {
     window_from_node(element.upcast::<Node>())
         .Document()
         .GetBody()
@@ -382,31 +382,28 @@ fn get_element_in_view_center_point(element: &Element) -> Option<Point2D<i64>> {
         .and_then(|body| {
             // Step 1: Let rectangle be the first element of the DOMRect sequence
             // returned by calling getClientRects() on element.
-            element
-                .GetClientRects(CanGc::note())
-                .first()
-                .map(|rectangle| {
-                    let x = rectangle.X().round() as i64;
-                    let y = rectangle.Y().round() as i64;
-                    let width = rectangle.Width().round() as i64;
-                    let height = rectangle.Height().round() as i64;
-
-                    let client_width = body.ClientWidth() as i64;
-                    let client_height = body.ClientHeight() as i64;
-
-                    // Steps 2 - 5
-                    let left = cmp::max(0, cmp::min(x, x + width));
-                    let right = cmp::min(client_width, cmp::max(x, x + width));
-                    let top = cmp::max(0, cmp::min(y, y + height));
-                    let bottom = cmp::min(client_height, cmp::max(y, y + height));
-
-                    // Steps 6 - 7
-                    let x = (left + right) / 2;
-                    let y = (top + bottom) / 2;
-
-                    // Step 8
-                    Point2D::new(x, y)
-                })
+            element.GetClientRects(can_gc).first().map(|rectangle| {
+                let x = rectangle.X().round() as i64;
+                let y = rectangle.Y().round() as i64;
+                let width = rectangle.Width().round() as i64;
+                let height = rectangle.Height().round() as i64;
+
+                let client_width = body.ClientWidth() as i64;
+                let client_height = body.ClientHeight() as i64;
+
+                // Steps 2 - 5
+                let left = cmp::max(0, cmp::min(x, x + width));
+                let right = cmp::min(client_width, cmp::max(x, x + width));
+                let top = cmp::max(0, cmp::min(y, y + height));
+                let bottom = cmp::min(client_height, cmp::max(y, y + height));
+
+                // Steps 6 - 7
+                let x = (left + right) / 2;
+                let y = (top + bottom) / 2;
+
+                // Step 8
+                Point2D::new(x, y)
+            })
         })
 }
 
@@ -415,11 +412,12 @@ pub fn handle_get_element_in_view_center_point(
     pipeline: PipelineId,
     element_id: String,
     reply: IpcSender<Result<Option<(i64, i64)>, ErrorStatus>>,
+    can_gc: CanGc,
 ) {
     reply
         .send(
             find_node_by_unique_id(documents, pipeline, element_id).map(|node| {
-                get_element_in_view_center_point(node.downcast::<Element>().unwrap())
+                get_element_in_view_center_point(node.downcast::<Element>().unwrap(), can_gc)
                     .map(|point| (point.x, point.y))
             }),
         )
@@ -715,6 +713,7 @@ pub fn handle_get_page_source(
     documents: &Documents,
     pipeline: PipelineId,
     reply: IpcSender<Result<String, ErrorStatus>>,
+    can_gc: CanGc,
 ) {
     reply
         .send(
@@ -725,7 +724,7 @@ pub fn handle_get_page_source(
                     Some(element) => match element.GetOuterHTML() {
                         Ok(source) => Ok(source.to_string()),
                         Err(_) => {
-                            match XMLSerializer::new(document.window(), None, CanGc::note())
+                            match XMLSerializer::new(document.window(), None, can_gc)
                                 .SerializeToString(element.upcast::<Node>())
                             {
                                 Ok(source) => Ok(source.to_string()),
@@ -926,6 +925,7 @@ pub fn handle_get_bounding_client_rect(
     pipeline: PipelineId,
     element_id: String,
     reply: IpcSender<Result<Rect<f32>, ErrorStatus>>,
+    can_gc: CanGc,
 ) {
     reply
         .send(
@@ -933,7 +933,7 @@ pub fn handle_get_bounding_client_rect(
                 .downcast::<Element>(
             ) {
                 Some(element) => {
-                    let rect = element.GetBoundingClientRect(CanGc::note());
+                    let rect = element.GetBoundingClientRect(can_gc);
                     Ok(Rect::new(
                         Point2D::new(rect.X() as f32, rect.Y() as f32),
                         Size2D::new(rect.Width() as f32, rect.Height() as f32),