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-rw-r--r--components/script/script_task.rs98
1 files changed, 69 insertions, 29 deletions
diff --git a/components/script/script_task.rs b/components/script/script_task.rs
index 19c8c96ead0..847da174eff 100644
--- a/components/script/script_task.rs
+++ b/components/script/script_task.rs
@@ -24,6 +24,7 @@ use dom::bindings::codegen::Bindings::DocumentBinding::{DocumentMethods, Documen
use dom::bindings::codegen::InheritTypes::{ElementCast, EventTargetCast, HTMLIFrameElementCast, NodeCast, EventCast};
use dom::bindings::conversions::FromJSValConvertible;
use dom::bindings::conversions::StringificationBehavior;
+use dom::bindings::global::GlobalRef;
use dom::bindings::js::{JS, JSRef, Temporary, OptionalRootable, RootedReference};
use dom::bindings::js::{RootCollection, RootCollectionPtr};
use dom::bindings::refcounted::{LiveDOMReferences, Trusted, TrustedReference};
@@ -116,7 +117,7 @@ struct InProgressLoad {
/// The pipeline which requested this load.
pipeline_id: PipelineId,
/// The parent pipeline and child subpage associated with this load, if any.
- subpage_id: Option<(PipelineId, SubpageId)>,
+ parent_info: Option<(PipelineId, SubpageId)>,
/// The current window size associated with this pipeline.
window_size: Option<WindowSizeData>,
/// Channel to the layout task associated with this pipeline.
@@ -130,13 +131,13 @@ struct InProgressLoad {
impl InProgressLoad {
/// Create a new InProgressLoad object.
fn new(id: PipelineId,
- subpage_id: Option<(PipelineId, SubpageId)>,
+ parent_info: Option<(PipelineId, SubpageId)>,
layout_chan: LayoutChan,
window_size: Option<WindowSizeData>,
url: Url) -> InProgressLoad {
InProgressLoad {
pipeline_id: id,
- subpage_id: subpage_id,
+ parent_info: parent_info,
layout_chan: layout_chan,
window_size: window_size,
clip_rect: None,
@@ -332,6 +333,7 @@ impl ScriptTaskFactory for ScriptTask {
fn create<C>(_phantom: Option<&mut ScriptTask>,
id: PipelineId,
+ parent_info: Option<(PipelineId, SubpageId)>,
compositor: C,
layout_chan: &OpaqueScriptLayoutChannel,
control_chan: ScriptControlChan,
@@ -365,7 +367,7 @@ impl ScriptTaskFactory for ScriptTask {
});
let mut failsafe = ScriptMemoryFailsafe::new(&script_task);
- let new_load = InProgressLoad::new(id, None, layout_chan, window_size,
+ let new_load = InProgressLoad::new(id, parent_info, layout_chan, window_size,
load_data.url.clone());
script_task.start_page_load(new_load, load_data);
@@ -641,7 +643,15 @@ impl ScriptTask {
ConstellationControlMsg::Freeze(pipeline_id) =>
self.handle_freeze_msg(pipeline_id),
ConstellationControlMsg::Thaw(pipeline_id) =>
- self.handle_thaw_msg(pipeline_id)
+ self.handle_thaw_msg(pipeline_id),
+ ConstellationControlMsg::MozBrowserEvent(parent_pipeline_id,
+ subpage_id,
+ event_name,
+ event_detail) =>
+ self.handle_mozbrowser_event_msg(parent_pipeline_id,
+ subpage_id,
+ event_name,
+ event_detail),
}
}
@@ -783,6 +793,30 @@ impl ScriptTask {
window.r().thaw();
}
+ /// Handles a mozbrowser event, for example see:
+ /// https://developer.mozilla.org/en-US/docs/Web/Events/mozbrowserloadstart
+ fn handle_mozbrowser_event_msg(&self,
+ parent_pipeline_id: PipelineId,
+ subpage_id: SubpageId,
+ event_name: String,
+ event_detail: Option<String>) {
+ let borrowed_page = self.root_page();
+
+ let frame_element = borrowed_page.find(parent_pipeline_id).and_then(|page| {
+ let doc = page.document().root();
+ let doc: JSRef<Node> = NodeCast::from_ref(doc.r());
+
+ doc.traverse_preorder()
+ .filter_map(HTMLIFrameElementCast::to_ref)
+ .find(|node| node.subpage_id() == Some(subpage_id))
+ .map(Temporary::from_rooted)
+ }).root();
+
+ if let Some(frame_element) = frame_element {
+ frame_element.r().dispatch_mozbrowser_event(event_name, event_detail);
+ }
+ }
+
/// Handles a notification that reflow completed.
fn handle_reflow_complete_msg(&self, pipeline_id: PipelineId, reflow_id: uint) {
debug!("Script: Reflow {:?} complete for {:?}", reflow_id, pipeline_id);
@@ -832,7 +866,7 @@ impl ScriptTask {
response: LoadResponse) {
// Any notification received should refer to an existing, in-progress load that is tracked.
let idx = self.incomplete_loads.borrow().iter().position(|load| {
- load.pipeline_id == id && load.subpage_id.map(|sub| sub.1) == subpage
+ load.pipeline_id == id && load.parent_info.map(|info| info.1) == subpage
}).unwrap();
let load = self.incomplete_loads.borrow_mut().remove(idx);
self.load(response, load);
@@ -876,27 +910,31 @@ impl ScriptTask {
// We should either be initializing a root page or loading a child page of an
// existing one.
let root_page_exists = self.page.borrow().is_some();
- assert!(incomplete.subpage_id.is_none() || root_page_exists);
-
- let frame_element = incomplete.subpage_id.and_then(|(parent_id, subpage_id)| {
- let borrowed_page = self.root_page();
- // In the case a parent id exists but the matching page
- // cannot be found, this means the page exists in a different
- // script task (due to origin) so it shouldn't be returned.
- // TODO: window.parent will continue to return self in that
- // case, which is wrong. We should be returning an object that
- // denies access to most properties (per
- // https://github.com/servo/servo/issues/3939#issuecomment-62287025).
- borrowed_page.find(parent_id).and_then(|page| {
- let doc = page.document().root();
- let doc: JSRef<Node> = NodeCast::from_ref(doc.r());
- doc.traverse_preorder()
- .filter_map(HTMLIFrameElementCast::to_ref)
- .find(|node| node.subpage_id() == Some(subpage_id))
- .map(ElementCast::from_ref)
- .map(Temporary::from_rooted)
- })
+ let frame_element = incomplete.parent_info.and_then(|(parent_id, subpage_id)| {
+ // The root page may not exist yet, if the parent of this frame
+ // exists in a different script task.
+ let borrowed_page = self.page.borrow();
+
+ // In the case a parent id exists but the matching page
+ // cannot be found, this means the page exists in a different
+ // script task (due to origin) so it shouldn't be returned.
+ // TODO: window.parent will continue to return self in that
+ // case, which is wrong. We should be returning an object that
+ // denies access to most properties (per
+ // https://github.com/servo/servo/issues/3939#issuecomment-62287025).
+ borrowed_page.as_ref().and_then(|borrowed_page| {
+ borrowed_page.find(parent_id).and_then(|page| {
+ let doc = page.document().root();
+ let doc: JSRef<Node> = NodeCast::from_ref(doc.r());
+
+ doc.traverse_preorder()
+ .filter_map(HTMLIFrameElementCast::to_ref)
+ .find(|node| node.subpage_id() == Some(subpage_id))
+ .map(ElementCast::from_ref)
+ .map(Temporary::from_rooted)
+ })
+ })
}).root();
self.compositor.borrow_mut().set_ready_state(incomplete.pipeline_id, Loading);
@@ -909,9 +947,11 @@ impl ScriptTask {
if !root_page_exists {
// We have a new root frame tree.
*self.page.borrow_mut() = Some(page.clone());
- } else if let Some((parent, _)) = incomplete.subpage_id {
+ } else if let Some((parent, _)) = incomplete.parent_info {
// We have a new child frame.
let parent_page = self.root_page();
+ // TODO(gw): This find will fail when we are sharing script tasks
+ // between cross origin iframes in the same TLD.
parent_page.find(parent).expect("received load for subpage with missing parent");
parent_page.children.borrow_mut().push(page.clone());
}
@@ -972,7 +1012,7 @@ impl ScriptTask {
self.constellation_chan.clone(),
incomplete.layout_chan,
incomplete.pipeline_id,
- incomplete.subpage_id.map(|s| s.1),
+ incomplete.parent_info,
incomplete.window_size).root();
let last_modified: Option<DOMString> = response.metadata.headers.as_ref().and_then(|headers| {
@@ -1223,7 +1263,7 @@ impl ScriptTask {
/// argument until a notification is received that the fetch is complete.
fn start_page_load(&self, incomplete: InProgressLoad, mut load_data: LoadData) {
let id = incomplete.pipeline_id.clone();
- let subpage = incomplete.subpage_id.clone().map(|p| p.1);
+ let subpage = incomplete.parent_info.clone().map(|p| p.1);
let script_chan = self.chan.clone();
let resource_task = self.resource_task.clone();
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-09 02:28:43 +0000