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Added a TopLevelBrowsingContextId type.

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This commit is contained in:
Alan Jeffrey 2017-05-15 16:09:49 -05:00
parent b428a94326
commit 42577365b7
15 changed files with 407 additions and 234 deletions
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92
components/script/dom/htmliframeelement.rs
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@ -40,7 +40,7 @@ use html5ever::{LocalName, Prefix};
use ipc_channel::ipc;
use js::jsapi::{JSAutoCompartment, JSContext, MutableHandleValue};
use js::jsval::{NullValue, UndefinedValue};
use msg::constellation_msg::{FrameType, BrowsingContextId, PipelineId, TraversalDirection};
use msg::constellation_msg::{FrameType, BrowsingContextId, PipelineId, TopLevelBrowsingContextId, TraversalDirection};
use net_traits::response::HttpsState;
use script_layout_interface::message::ReflowQueryType;
use script_thread::{ScriptThread, Runnable};
@ -84,7 +84,8 @@ enum ProcessingMode {
#[dom_struct]
pub struct HTMLIFrameElement {
htmlelement: HTMLElement,
browsing_context_id: BrowsingContextId,
top_level_browsing_context_id: Cell<Option<TopLevelBrowsingContextId>>,
browsing_context_id: Cell<Option<BrowsingContextId>>,
pipeline_id: Cell<Option<PipelineId>>,
pending_pipeline_id: Cell<Option<PipelineId>>,
sandbox: MutNullableJS<DOMTokenList>,
@ -112,13 +113,6 @@ impl HTMLIFrameElement {
}).unwrap_or_else(|| ServoUrl::parse("about:blank").unwrap())
}
pub fn generate_new_pipeline_id(&self) -> (Option<PipelineId>, PipelineId) {
let old_pipeline_id = self.pipeline_id.get();
let new_pipeline_id = PipelineId::new();
debug!("Frame {} created pipeline {}.", self.browsing_context_id, new_pipeline_id);
(old_pipeline_id, new_pipeline_id)
}
pub fn navigate_or_reload_child_browsing_context(&self,
load_data: Option<LoadData>,
nav_type: NavigationType,
@ -129,6 +123,16 @@ impl HTMLIFrameElement {
IFrameUnsandboxed
};
let browsing_context_id = match self.browsing_context_id() {
None => return warn!("Navigating unattached iframe."),
Some(id) => id,
};
let top_level_browsing_context_id = match self.top_level_browsing_context_id() {
None => return warn!("Navigating unattached iframe."),
Some(id) => id,
};
let document = document_from_node(self);
let mut load_blocker = self.load_blocker.borrow_mut();
@ -144,7 +148,8 @@ impl HTMLIFrameElement {
}
let window = window_from_node(self);
let (old_pipeline_id, new_pipeline_id) = self.generate_new_pipeline_id();
let old_pipeline_id = self.pipeline_id();
let new_pipeline_id = PipelineId::new();
self.pending_pipeline_id.set(Some(new_pipeline_id));
let private_iframe = self.privatebrowsing();
let frame_type = if self.Mozbrowser() { FrameType::MozBrowserIFrame } else { FrameType::IFrame };
@ -152,7 +157,8 @@ impl HTMLIFrameElement {
let global_scope = window.upcast::<GlobalScope>();
let load_info = IFrameLoadInfo {
parent_pipeline_id: global_scope.pipeline_id(),
browsing_context_id: self.browsing_context_id,
browsing_context_id: browsing_context_id,
top_level_browsing_context_id: top_level_browsing_context_id,
new_pipeline_id: new_pipeline_id,
is_private: private_iframe,
frame_type: frame_type,
@ -171,7 +177,8 @@ impl HTMLIFrameElement {
let new_layout_info = NewLayoutInfo {
parent_info: Some((global_scope.pipeline_id(), frame_type)),
new_pipeline_id: new_pipeline_id,
browsing_context_id: self.browsing_context_id,
browsing_context_id: browsing_context_id,
top_level_browsing_context_id: top_level_browsing_context_id,
load_data: load_data.unwrap(),
pipeline_port: pipeline_receiver,
content_process_shutdown_chan: None,
@ -246,11 +253,29 @@ impl HTMLIFrameElement {
// Synchronously create a new context and navigate it to about:blank.
let url = ServoUrl::parse("about:blank").unwrap();
let document = document_from_node(self);
let pipeline_id = Some(window_from_node(self).upcast::<GlobalScope>().pipeline_id());
let window = window_from_node(self);
let pipeline_id = Some(window.upcast::<GlobalScope>().pipeline_id());
let load_data = LoadData::new(url, pipeline_id, document.get_referrer_policy(), Some(document.url().clone()));
let (browsing_context_id, top_level_browsing_context_id) = if self.Mozbrowser() {
let top_level_browsing_context_id = TopLevelBrowsingContextId::new();
(BrowsingContextId::from(top_level_browsing_context_id), top_level_browsing_context_id)
} else {
(BrowsingContextId::new(), window.window_proxy().top_level_browsing_context_id())
};
self.pipeline_id.set(None);
self.pending_pipeline_id.set(None);
self.top_level_browsing_context_id.set(Some(top_level_browsing_context_id));
self.browsing_context_id.set(Some(browsing_context_id));
self.navigate_or_reload_child_browsing_context(Some(load_data), NavigationType::InitialAboutBlank, false);
}
fn destroy_nested_browsing_context(&self) {
self.pipeline_id.set(None);
self.pending_pipeline_id.set(None);
self.top_level_browsing_context_id.set(None);
self.browsing_context_id.set(None);
}
pub fn update_pipeline_id(&self, new_pipeline_id: PipelineId, reason: UpdatePipelineIdReason) {
if self.pending_pipeline_id.get() != Some(new_pipeline_id) && reason == UpdatePipelineIdReason::Navigation {
return;
@ -277,7 +302,8 @@ impl HTMLIFrameElement {
document: &Document) -> HTMLIFrameElement {
HTMLIFrameElement {
htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
browsing_context_id: BrowsingContextId::new(),
browsing_context_id: Cell::new(None),
top_level_browsing_context_id: Cell::new(None),
pipeline_id: Cell::new(None),
pending_pipeline_id: Cell::new(None),
sandbox: Default::default(),
@ -302,8 +328,13 @@ impl HTMLIFrameElement {
}
#[inline]
pub fn browsing_context_id(&self) -> BrowsingContextId {
self.browsing_context_id
pub fn browsing_context_id(&self) -> Option<BrowsingContextId> {
self.browsing_context_id.get()
}
#[inline]
pub fn top_level_browsing_context_id(&self) -> Option<TopLevelBrowsingContextId> {
self.top_level_browsing_context_id.get()
}
pub fn change_visibility_status(&self, visibility: bool) {
@ -364,7 +395,7 @@ impl HTMLIFrameElement {
pub trait HTMLIFrameElementLayoutMethods {
fn pipeline_id(&self) -> Option<PipelineId>;
fn browsing_context_id(&self) -> BrowsingContextId;
fn browsing_context_id(&self) -> Option<BrowsingContextId>;
fn get_width(&self) -> LengthOrPercentageOrAuto;
fn get_height(&self) -> LengthOrPercentageOrAuto;
}
@ -380,9 +411,9 @@ impl HTMLIFrameElementLayoutMethods for LayoutJS<HTMLIFrameElement> {
#[inline]
#[allow(unsafe_code)]
fn browsing_context_id(&self) -> BrowsingContextId {
fn browsing_context_id(&self) -> Option<BrowsingContextId> {
unsafe {
(*self.unsafe_get()).browsing_context_id
(*self.unsafe_get()).browsing_context_id.get()
}
}
@ -541,7 +572,8 @@ impl HTMLIFrameElementMethods for HTMLIFrameElement {
// https://html.spec.whatwg.org/multipage/#dom-iframe-contentwindow
fn GetContentWindow(&self) -> Option<Root<WindowProxy>> {
self.pipeline_id.get().and_then(|_| ScriptThread::find_window_proxy(self.browsing_context_id))
self.browsing_context_id.get()
.and_then(|browsing_context_id| ScriptThread::find_window_proxy(browsing_context_id))
}
// https://html.spec.whatwg.org/multipage/#dom-iframe-contentdocument
@ -711,7 +743,7 @@ impl VirtualMethods for HTMLIFrameElement {
// is in a document tree and has a browsing context, which is what causes
// the child browsing context to be created.
if self.upcast::<Node>().is_in_doc_with_browsing_context() {
debug!("iframe {} src set while in browsing context.", self.browsing_context_id);
debug!("iframe src set while in browsing context.");
self.process_the_iframe_attributes(ProcessingMode::NotFirstTime);
}
},
@ -740,7 +772,7 @@ impl VirtualMethods for HTMLIFrameElement {
// to the newly-created browsing context, and then process the
// iframe attributes for the "first time"."
if self.upcast::<Node>().is_in_doc_with_browsing_context() {
debug!("iframe {} bound to browsing context.", self.browsing_context_id);
debug!("iframe bound to browsing context.");
debug_assert!(tree_in_doc, "is_in_doc_with_bc, but not tree_in_doc");
self.create_nested_browsing_context();
self.process_the_iframe_attributes(ProcessingMode::FirstTime);
@ -754,13 +786,18 @@ impl VirtualMethods for HTMLIFrameElement {
LoadBlocker::terminate(&mut blocker);
// https://html.spec.whatwg.org/multipage/#a-browsing-context-is-discarded
debug!("Unbinding frame {}.", self.browsing_context_id);
let window = window_from_node(self);
let (sender, receiver) = ipc::channel().unwrap();
// Ask the constellation to remove the iframe, and tell us the
// pipeline ids of the closed pipelines.
let msg = ConstellationMsg::RemoveIFrame(self.browsing_context_id, sender);
let browsing_context_id = match self.browsing_context_id() {
None => return warn!("Unbinding already unbound iframe."),
Some(id) => id,
};
debug!("Unbinding frame {}.", browsing_context_id);
let msg = ConstellationMsg::RemoveIFrame(browsing_context_id, sender);
window.upcast::<GlobalScope>().constellation_chan().send(msg).unwrap();
let exited_pipeline_ids = receiver.recv().unwrap();
@ -769,9 +806,11 @@ impl VirtualMethods for HTMLIFrameElement {
// when the `PipelineExit` message arrives.
for exited_pipeline_id in exited_pipeline_ids {
if let Some(exited_document) = ScriptThread::find_document(exited_pipeline_id) {
debug!("Discarding browsing context for pipeline {}", exited_pipeline_id);
exited_document.window().window_proxy().discard_browsing_context();
for exited_iframe in exited_document.iter_iframes() {
exited_iframe.pipeline_id.set(None);
debug!("Discarding nested browsing context");
exited_iframe.destroy_nested_browsing_context();
}
}
}
@ -781,8 +820,7 @@ impl VirtualMethods for HTMLIFrameElement {
// the load doesn't think that it's a navigation, but instead
// a new iframe. Without this, the constellation gets very
// confused.
self.pipeline_id.set(None);
self.pending_pipeline_id.set(None);
self.destroy_nested_browsing_context();
}
}