Storage notifications routed via the constellation.

components/script/dom/storage.rs

@@ -17,6 +17,7 @@ use ipc_channel::ipc::{self, IpcSender};
 use net_traits::IpcSend;
 use net_traits::storage_thread::{StorageThreadMsg, StorageType};
 use script_thread::{Runnable, ScriptThread};
+use script_traits::ScriptMsg;
 use task_source::TaskSource;
 use url::Url;
 
@@ -149,60 +150,60 @@ impl Storage {
     /// https://html.spec.whatwg.org/multipage/#send-a-storage-notification
     fn broadcast_change_notification(&self, key: Option<String>, old_value: Option<String>,
                                      new_value: Option<String>) {
+        let pipeline_id = self.global().pipeline_id();
+        let storage = self.storage_type;
+        let url = self.get_url();
+        let msg = ScriptMsg::BroadcastStorageEvent(pipeline_id, storage, url, key, old_value, new_value);
+        self.global().constellation_chan().send(msg).unwrap();
+    }
+
+    /// https://html.spec.whatwg.org/multipage/#send-a-storage-notification
+    pub fn queue_storage_event(&self, url: Url,
+                               key: Option<String>, old_value: Option<String>, new_value: Option<String>) {
         let global = self.global();
         let window = global.as_window();
         let task_source = window.dom_manipulation_task_source();
         let trusted_storage = Trusted::new(self);
         task_source
             .queue(
-                box StorageEventRunnable::new(trusted_storage, key, old_value, new_value), &global)
+                box StorageEventRunnable::new(trusted_storage, url, key, old_value, new_value), &global)
             .unwrap();
     }
 }
 
 pub struct StorageEventRunnable {
     element: Trusted<Storage>,
+    url: Url,
     key: Option<String>,
     old_value: Option<String>,
     new_value: Option<String>
 }
 
 impl StorageEventRunnable {
-    fn new(storage: Trusted<Storage>, key: Option<String>, old_value: Option<String>,
-           new_value: Option<String>) -> StorageEventRunnable {
-        StorageEventRunnable { element: storage, key: key, old_value: old_value, new_value: new_value }
+    fn new(storage: Trusted<Storage>, url: Url,
+           key: Option<String>, old_value: Option<String>, new_value: Option<String>) -> StorageEventRunnable {
+        StorageEventRunnable { element: storage, url: url, key: key, old_value: old_value, new_value: new_value }
     }
 }
 
 impl Runnable for StorageEventRunnable {
     fn name(&self) -> &'static str { "StorageEventRunnable" }
 
-    fn main_thread_handler(self: Box<StorageEventRunnable>, script_thread: &ScriptThread) {
+    fn main_thread_handler(self: Box<StorageEventRunnable>, _: &ScriptThread) {
         let this = *self;
         let storage = this.element.root();
         let global = storage.global();
-        let ev_url = storage.get_url();
+        let window = global.as_window();
 
         let storage_event = StorageEvent::new(
             &global,
             atom!("storage"),
             EventBubbles::DoesNotBubble, EventCancelable::NotCancelable,
             this.key.map(DOMString::from), this.old_value.map(DOMString::from), this.new_value.map(DOMString::from),
-            DOMString::from(ev_url.to_string()),
+            DOMString::from(this.url.into_string()),
             Some(&storage)
         );
 
-        // TODO: This is only iterating over documents in the current script
-        // thread, so we are not firing events to other script threads.
-        // NOTE: once that is fixed, we can remove borrow_documents from ScriptThread.
-        for (id, document) in script_thread.borrow_documents().iter() {
-            if ev_url.origin() == document.window().get_url().origin() {
-                // TODO: Such a Document object is not necessarily fully active, but events fired on such
-                // objects are ignored by the event loop until the Document becomes fully active again.
-                if global.pipeline_id() != id {
-                    storage_event.upcast::<Event>().fire(document.window().upcast());
-                }
-            }
-        }
+        storage_event.upcast::<Event>().fire(window.upcast());
     }
 }

components/script/script_thread.rs

@@ -75,6 +75,7 @@ use msg::constellation_msg::{FrameId, FrameType, PipelineId, PipelineNamespace};
 use net_traits::{CoreResourceMsg, IpcSend, Metadata, ReferrerPolicy, ResourceThreads};
 use net_traits::image_cache_thread::{ImageCacheChan, ImageCacheResult, ImageCacheThread};
 use net_traits::request::{CredentialsMode, Destination, RequestInit};
+use net_traits::storage_thread::StorageType;
 use network_listener::NetworkListener;
 use profile_traits::mem::{self, OpaqueSender, Report, ReportKind, ReportsChan};
 use profile_traits::time::{self, ProfilerCategory, profile};
@@ -90,7 +91,7 @@ use script_traits::CompositorEvent::{KeyEvent, MouseButtonEvent, MouseMoveEvent,
 use script_traits::CompositorEvent::{TouchEvent, TouchpadPressureEvent};
 use script_traits::webdriver_msg::WebDriverScriptCommand;
 use std::borrow::ToOwned;
-use std::cell::{Cell, Ref};
+use std::cell::Cell;
 use std::collections::{hash_map, HashMap, HashSet};
 use std::option::Option;
 use std::ptr;
@@ -605,12 +606,6 @@ impl ScriptThread {
         }))
     }
 
-    // TODO: This method is only needed for storage, and can be removed
-    // once storage event dispatch is moved to the constellation.
-    pub fn borrow_documents(&self) -> Ref<Documents> {
-        self.documents.borrow()
-    }
-
     /// Creates a new script thread.
     pub fn new(state: InitialScriptState,
                port: Receiver<MainThreadScriptMsg>,
@@ -981,6 +976,8 @@ impl ScriptThread {
             ConstellationControlMsg::DispatchFrameLoadEvent {
                 target: frame_id, parent: parent_id, child: child_id } =>
                 self.handle_frame_load_event(parent_id, frame_id, child_id),
+            ConstellationControlMsg::DispatchStorageEvent(pipeline_id, storage, url, key, old_value, new_value) =>
+                self.handle_storage_event(pipeline_id, storage, url, key, old_value, new_value),
             ConstellationControlMsg::FramedContentChanged(parent_pipeline_id, frame_id) =>
                 self.handle_framed_content_changed(parent_pipeline_id, frame_id),
             ConstellationControlMsg::ReportCSSError(pipeline_id, filename, line, column, msg) =>
@@ -1582,6 +1579,20 @@ impl ScriptThread {
         }
     }
 
+    /// Notify a window of a storage event
+    fn handle_storage_event(&self, pipeline_id: PipelineId, storage_type: StorageType, url: Url,
+                            key: Option<String>, old_value: Option<String>, new_value: Option<String>) {
+        let storage = match self.documents.borrow().find_window(pipeline_id) {
+            None => return warn!("Storage event sent to closed pipeline {}.", pipeline_id),
+            Some(window) => match storage_type {
+                StorageType::Local => window.LocalStorage(),
+                StorageType::Session => window.SessionStorage(),
+            },
+        };
+
+        storage.queue_storage_event(url, key, old_value, new_value);
+    }
+
     /// Notify the containing document of a child frame that has completed loading.
     fn handle_frame_load_event(&self, parent_id: PipelineId, frame_id: FrameId, child_id: PipelineId) {
         match self.documents.borrow().find_iframe(parent_id, frame_id) {