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https://github.com/servo/servo.git
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Implement dissimilar-origin window.parent and window.top.
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parent
0b590aeed7
commit
6bcb5f68be
9 changed files with 207 additions and 87 deletions
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@ -63,25 +63,35 @@ pub struct BrowsingContext {
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/// The containing iframe element, if this is a same-origin iframe
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frame_element: Option<JS<Element>>,
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/// The parent browsing context, if this is a nested browsing context
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parent: Option<JS<BrowsingContext>>,
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}
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impl BrowsingContext {
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pub fn new_inherited(frame_id: FrameId,
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currently_active: PipelineId,
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frame_element: Option<&Element>)
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currently_active: Option<PipelineId>,
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frame_element: Option<&Element>,
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parent: Option<&BrowsingContext>)
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-> BrowsingContext
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{
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BrowsingContext {
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reflector: Reflector::new(),
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frame_id: frame_id,
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currently_active: Cell::new(Some(currently_active)),
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currently_active: Cell::new(currently_active),
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discarded: Cell::new(false),
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frame_element: frame_element.map(JS::from_ref),
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parent: parent.map(JS::from_ref),
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}
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}
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#[allow(unsafe_code)]
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pub fn new(window: &Window, frame_id: FrameId, frame_element: Option<&Element>) -> Root<BrowsingContext> {
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pub fn new(window: &Window,
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frame_id: FrameId,
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frame_element: Option<&Element>,
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parent: Option<&BrowsingContext>)
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-> Root<BrowsingContext>
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{
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unsafe {
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let WindowProxyHandler(handler) = window.windowproxy_handler();
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assert!(!handler.is_null());
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@ -97,8 +107,48 @@ impl BrowsingContext {
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assert!(!window_proxy.is_null());
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// Create a new browsing context.
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let currently_active = window.global().pipeline_id();
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let mut browsing_context = box BrowsingContext::new_inherited(frame_id, currently_active, frame_element);
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let current = Some(window.global().pipeline_id());
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let mut browsing_context = box BrowsingContext::new_inherited(frame_id, current, frame_element, parent);
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// The window proxy owns the browsing context.
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// When we finalize the window proxy, it drops the browsing context it owns.
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SetProxyExtra(window_proxy.get(), 0, &PrivateValue(&*browsing_context as *const _ as *const _));
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// Notify the JS engine about the new window proxy binding.
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SetWindowProxy(cx, window_jsobject, window_proxy.handle());
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// Set the reflector.
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debug!("Initializing reflector of {:p} to {:p}.", browsing_context, window_proxy.get());
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browsing_context.reflector.set_jsobject(window_proxy.get());
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Root::from_ref(&*Box::into_raw(browsing_context))
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}
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}
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#[allow(unsafe_code)]
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pub fn new_dissimilar_origin(global_to_clone_from: &GlobalScope,
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frame_id: FrameId,
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parent: Option<&BrowsingContext>)
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-> Root<BrowsingContext>
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{
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unsafe {
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let handler = CreateWrapperProxyHandler(&XORIGIN_PROXY_HANDLER);
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assert!(!handler.is_null());
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let cx = global_to_clone_from.get_cx();
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// Create a new browsing context.
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let mut browsing_context = box BrowsingContext::new_inherited(frame_id, None, None, parent);
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// Create a new dissimilar-origin window.
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let window = DissimilarOriginWindow::new(global_to_clone_from, &*browsing_context);
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let window_jsobject = window.reflector().get_jsobject();
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assert!(!window_jsobject.get().is_null());
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assert!(((*get_object_class(window_jsobject.get())).flags & JSCLASS_IS_GLOBAL) != 0);
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let _ac = JSAutoCompartment::new(cx, window_jsobject.get());
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// Create a new window proxy.
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rooted!(in(cx) let window_proxy = NewWindowProxy(cx, window_jsobject, handler));
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assert!(!window_proxy.is_null());
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// The window proxy owns the browsing context.
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// When we finalize the window proxy, it drops the browsing context it owns.
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@ -130,6 +180,18 @@ impl BrowsingContext {
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self.frame_element.r()
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}
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pub fn parent(&self) -> Option<&BrowsingContext> {
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self.parent.r()
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}
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pub fn top(&self) -> &BrowsingContext {
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let mut result = self;
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while let Some(parent) = result.parent() {
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result = parent;
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}
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result
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}
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#[allow(unsafe_code)]
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/// Change the Window that this browsing context's WindowProxy resolves to.
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// TODO: support setting the window proxy to a dummy value,
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@ -181,7 +243,8 @@ impl BrowsingContext {
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}
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pub fn unset_currently_active(&self) {
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let window = DissimilarOriginWindow::new(self);
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let globalscope = self.global();
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let window = DissimilarOriginWindow::new(&*globalscope, self);
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self.set_window_proxy(&*window.upcast(), &XORIGIN_PROXY_HANDLER);
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self.currently_active.set(None);
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}
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@ -7,7 +7,6 @@ use dom::bindings::codegen::Bindings::DissimilarOriginWindowBinding::DissimilarO
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use dom::bindings::error::{Error, ErrorResult};
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use dom::bindings::inheritance::Castable;
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use dom::bindings::js::{JS, MutNullableJS, Root};
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use dom::bindings::reflector::DomObject;
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use dom::bindings::str::DOMString;
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use dom::bindings::structuredclone::StructuredCloneData;
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use dom::browsingcontext::BrowsingContext;
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@ -45,19 +44,18 @@ pub struct DissimilarOriginWindow {
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impl DissimilarOriginWindow {
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#[allow(unsafe_code)]
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pub fn new(browsing_context: &BrowsingContext) -> Root<DissimilarOriginWindow> {
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let globalscope = browsing_context.global();
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let cx = globalscope.get_cx();
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pub fn new(global_to_clone_from: &GlobalScope, browsing_context: &BrowsingContext) -> Root<DissimilarOriginWindow> {
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let cx = global_to_clone_from.get_cx();
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// Any timer events fired on this window are ignored.
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let (timer_event_chan, _) = ipc::channel().unwrap();
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let win = box DissimilarOriginWindow {
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globalscope: GlobalScope::new_inherited(PipelineId::new(),
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globalscope.devtools_chan().cloned(),
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globalscope.mem_profiler_chan().clone(),
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globalscope.time_profiler_chan().clone(),
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globalscope.constellation_chan().clone(),
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globalscope.scheduler_chan().clone(),
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globalscope.resource_threads().clone(),
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global_to_clone_from.devtools_chan().cloned(),
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global_to_clone_from.mem_profiler_chan().clone(),
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global_to_clone_from.time_profiler_chan().clone(),
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global_to_clone_from.constellation_chan().clone(),
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global_to_clone_from.scheduler_chan().clone(),
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global_to_clone_from.resource_threads().clone(),
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timer_event_chan),
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browsing_context: JS::from_ref(browsing_context),
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location: MutNullableJS::new(None),
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@ -84,14 +82,26 @@ impl DissimilarOriginWindowMethods for DissimilarOriginWindow {
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// https://html.spec.whatwg.org/multipage/#dom-parent
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fn GetParent(&self) -> Option<Root<BrowsingContext>> {
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// TODO: implement window.parent correctly for x-origin windows.
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// Steps 1-3.
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if self.browsing_context.is_discarded() {
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return None;
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}
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// Step 4.
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if let Some(parent) = self.browsing_context.parent() {
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return Some(Root::from_ref(parent));
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}
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// Step 5.
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Some(Root::from_ref(&*self.browsing_context))
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}
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// https://html.spec.whatwg.org/multipage/#dom-top
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fn GetTop(&self) -> Option<Root<BrowsingContext>> {
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// TODO: implement window.top correctly for x-origin windows.
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Some(Root::from_ref(&*self.browsing_context))
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// Steps 1-3.
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if self.browsing_context.is_discarded() {
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return None;
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}
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// Steps 4-5.
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Some(Root::from_ref(self.browsing_context.top()))
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}
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// https://html.spec.whatwg.org/multipage/#dom-length
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@ -42,7 +42,7 @@ use dom::location::Location;
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use dom::mediaquerylist::{MediaQueryList, WeakMediaQueryListVec};
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use dom::messageevent::MessageEvent;
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use dom::navigator::Navigator;
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use dom::node::{Node, NodeDamage, document_from_node, from_untrusted_node_address, window_from_node};
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use dom::node::{Node, NodeDamage, document_from_node, from_untrusted_node_address};
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use dom::performance::Performance;
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use dom::promise::Promise;
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use dom::screen::Screen;
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@ -631,31 +631,35 @@ impl WindowMethods for Window {
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// https://html.spec.whatwg.org/multipage/#dom-parent
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fn GetParent(&self) -> Option<Root<BrowsingContext>> {
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// Steps 1. and 2.
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if self.maybe_browsing_context().map_or(true, |c| c.is_discarded()) {
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// Steps 1-3.
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let context = match self.maybe_browsing_context() {
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Some(context) => context,
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None => return None,
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};
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if context.is_discarded() {
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return None;
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}
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match self.parent() {
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// Step 4.
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Some(parent) => Some(parent.Window()),
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// Step 5.
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None => Some(self.Window())
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// Step 4.
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if let Some(parent) = context.parent() {
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return Some(Root::from_ref(parent));
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}
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}
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// Step 5.
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Some(context)
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}
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// https://html.spec.whatwg.org/multipage/#dom-top
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fn GetTop(&self) -> Option<Root<BrowsingContext>> {
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// Steps 1. and 2.
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if self.maybe_browsing_context().map_or(true, |c| c.is_discarded()) {
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// Steps 1-3.
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let context = match self.maybe_browsing_context() {
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Some(context) => context,
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None => return None,
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};
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if context.is_discarded() {
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return None;
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}
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// Step 5.
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let mut window = Root::from_ref(self);
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while let Some(parent) = window.parent() {
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window = parent;
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}
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Some(window.Window())
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}
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// Steps 4-5.
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Some(Root::from_ref(context.top()))
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}
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// https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/
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// NavigationTiming/Overview.html#sec-window.performance-attribute
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@ -1657,16 +1661,6 @@ impl Window {
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}
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}
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// https://html.spec.whatwg.org/multipage/#parent-browsing-context
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pub fn parent(&self) -> Option<Root<Window>> {
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if self.is_top_level() {
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return None;
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}
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self.browsing_context().frame_element()
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.map(|frame_element| window_from_node(frame_element))
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}
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/// Returns whether this window is mozbrowser.
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pub fn is_mozbrowser(&self) -> bool {
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PREFS.is_mozbrowser_enabled() && self.parent_info().is_none()
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