mirror of
https://github.com/servo/servo.git
synced 2025-08-05 05:30:08 +01:00
Move everything unrelated to the frame tree out of Page and into Document or Window. Reduce the API surface of Page to a bare minimum to allow for easier future removal.
This commit is contained in:
parent
d9f04180a5
commit
e2c4f5ed67
23 changed files with 664 additions and 672 deletions
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@ -8,50 +8,59 @@ use dom::bindings::codegen::Bindings::FunctionBinding::Function;
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use dom::bindings::codegen::Bindings::WindowBinding;
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use dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
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use dom::bindings::codegen::Bindings::DocumentBinding::DocumentMethods;
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use dom::bindings::codegen::InheritTypes::EventTargetCast;
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use dom::bindings::codegen::InheritTypes::{NodeCast, EventTargetCast};
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use dom::bindings::global::global_object_for_js_object;
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use dom::bindings::error::{report_pending_exception, Fallible};
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use dom::bindings::error::Error::InvalidCharacter;
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use dom::bindings::global::GlobalRef;
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use dom::bindings::js::{MutNullableJS, JSRef, Temporary};
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use dom::bindings::utils::Reflectable;
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use dom::bindings::js::{MutNullableJS, JSRef, Temporary, OptionalRootable, RootedReference};
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use dom::bindings::utils::{GlobalStaticData, Reflectable, WindowProxyHandler};
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use dom::browsercontext::BrowserContext;
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use dom::console::Console;
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use dom::document::Document;
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use dom::document::{Document, DocumentHelpers};
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use dom::element::Element;
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use dom::eventtarget::{EventTarget, EventTargetHelpers, EventTargetTypeId};
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use dom::location::Location;
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use dom::navigator::Navigator;
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use dom::node::window_from_node;
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use dom::node::{window_from_node, Node, TrustedNodeAddress, NodeHelpers};
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use dom::performance::Performance;
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use dom::screen::Screen;
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use dom::storage::Storage;
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use layout_interface::{ReflowGoal, ReflowQueryType};
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use layout_interface::{ReflowGoal, ReflowQueryType, LayoutRPC, LayoutChan, Reflow, Msg};
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use layout_interface::{ContentBoxResponse, ContentBoxesResponse};
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use page::Page;
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use script_task::{TimerSource, ScriptChan};
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use script_task::ScriptMsg;
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use script_traits::ScriptControlChan;
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use timers::{IsInterval, TimerId, TimerManager, TimerCallback};
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use devtools_traits::DevtoolsControlChan;
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use msg::compositor_msg::ScriptListener;
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use msg::constellation_msg::LoadData;
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use msg::constellation_msg::{LoadData, PipelineId, SubpageId, ConstellationChan, WindowSizeData};
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use net::image_cache_task::ImageCacheTask;
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use net::resource_task::ResourceTask;
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use net::storage_task::StorageTask;
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use util::geometry::{self, Au, MAX_RECT};
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use util::str::{DOMString,HTML_SPACE_CHARACTERS};
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use geom::{Point2D, Rect, Size2D};
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use js::jsapi::JS_EvaluateUCScript;
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use js::jsapi::JSContext;
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use js::jsapi::{JS_GC, JS_GetRuntime};
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use js::jsval::{JSVal, UndefinedValue};
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use js::rust::with_compartment;
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use js::rust::{Cx, with_compartment};
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use url::{Url, UrlParser};
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use libc;
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use rustc_serialize::base64::{FromBase64, ToBase64, STANDARD};
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use std::cell::{Ref, RefMut};
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use std::cell::{Cell, Ref, RefMut};
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use std::default::Default;
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use std::ffi::CString;
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use std::mem::replace;
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use std::num::Float;
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use std::rc::Rc;
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use std::sync::mpsc::{channel, Receiver};
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use std::sync::mpsc::TryRecvError::{Empty, Disconnected};
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use time;
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#[dom_struct]
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@ -71,18 +80,80 @@ pub struct Window {
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screen: MutNullableJS<Screen>,
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session_storage: MutNullableJS<Storage>,
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timers: TimerManager,
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/// For providing instructions to an optional devtools server.
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devtools_chan: Option<DevtoolsControlChan>,
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/// A flag to indicate whether the developer tools have requested live updates of
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/// page changes.
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devtools_wants_updates: Cell<bool>,
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next_subpage_id: Cell<SubpageId>,
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/// Pending resize event, if any.
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resize_event: Cell<Option<WindowSizeData>>,
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/// Pipeline id associated with this page.
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id: PipelineId,
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/// Subpage id associated with this page, if any.
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subpage_id: Option<SubpageId>,
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/// Unique id for last reflow request; used for confirming completion reply.
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last_reflow_id: Cell<uint>,
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/// Global static data related to the DOM.
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dom_static: GlobalStaticData,
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/// The JavaScript context.
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js_context: DOMRefCell<Option<Rc<Cx>>>,
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/// A handle for communicating messages to the layout task.
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layout_chan: LayoutChan,
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/// A handle to perform RPC calls into the layout, quickly.
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layout_rpc: Box<LayoutRPC+'static>,
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/// The port that we will use to join layout. If this is `None`, then layout is not running.
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layout_join_port: DOMRefCell<Option<Receiver<()>>>,
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/// The current size of the window, in pixels.
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window_size: Cell<WindowSizeData>,
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/// Associated resource task for use by DOM objects like XMLHttpRequest
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resource_task: ResourceTask,
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/// A handle for communicating messages to the storage task.
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storage_task: StorageTask,
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/// A handle for communicating messages to the constellation task.
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constellation_chan: ConstellationChan,
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/// Pending scroll to fragment event, if any
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fragment_name: DOMRefCell<Option<String>>,
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/// An enlarged rectangle around the page contents visible in the viewport, used
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/// to prevent creating display list items for content that is far away from the viewport.
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page_clip_rect: Cell<Rect<Au>>,
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}
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impl Window {
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pub fn get_cx(&self) -> *mut JSContext {
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let js_info = self.page().js_info();
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(*js_info.as_ref().unwrap().js_context).ptr
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self.js_context.borrow().as_ref().unwrap().ptr
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}
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pub fn script_chan(&self) -> Box<ScriptChan+Send> {
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self.script_chan.clone()
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}
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pub fn pipeline(&self) -> PipelineId {
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self.id.clone()
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}
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pub fn subpage(&self) -> Option<SubpageId> {
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self.subpage_id.clone()
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}
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pub fn control_chan<'a>(&'a self) -> &'a ScriptControlChan {
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&self.control_chan
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}
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@ -103,16 +174,8 @@ impl Window {
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&*self.page
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}
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pub fn page_clone(&self) -> Rc<Page> {
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self.page.clone()
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}
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pub fn get_url(&self) -> Url {
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self.page().get_url()
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}
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pub fn storage_task(&self) -> StorageTask {
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self.page().storage_task.clone()
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self.storage_task.clone()
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}
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}
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@ -197,12 +260,11 @@ impl<'a> WindowMethods for JSRef<'a, Window> {
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}
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fn Close(self) {
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self.script_chan.send(ScriptMsg::ExitWindow(self.page.id.clone())).unwrap();
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self.script_chan.send(ScriptMsg::ExitWindow(self.id.clone())).unwrap();
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}
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fn Document(self) -> Temporary<Document> {
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let frame = self.page().frame();
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Temporary::new(frame.as_ref().unwrap().document.clone())
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self.browser_context().as_ref().unwrap().active_document()
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}
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fn Location(self) -> Temporary<Location> {
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@ -230,7 +292,7 @@ impl<'a> WindowMethods for JSRef<'a, Window> {
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args,
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timeout,
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IsInterval::NonInterval,
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TimerSource::FromWindow(self.page.id.clone()),
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TimerSource::FromWindow(self.id.clone()),
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self.script_chan.clone())
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}
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@ -239,7 +301,7 @@ impl<'a> WindowMethods for JSRef<'a, Window> {
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args,
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timeout,
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IsInterval::NonInterval,
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TimerSource::FromWindow(self.page.id.clone()),
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TimerSource::FromWindow(self.id.clone()),
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self.script_chan.clone())
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}
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@ -252,7 +314,7 @@ impl<'a> WindowMethods for JSRef<'a, Window> {
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args,
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timeout,
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IsInterval::Interval,
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TimerSource::FromWindow(self.page.id.clone()),
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TimerSource::FromWindow(self.id.clone()),
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self.script_chan.clone())
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}
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@ -261,7 +323,7 @@ impl<'a> WindowMethods for JSRef<'a, Window> {
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args,
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timeout,
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IsInterval::Interval,
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TimerSource::FromWindow(self.page.id.clone()),
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TimerSource::FromWindow(self.id.clone()),
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self.script_chan.clone())
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}
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@ -330,10 +392,35 @@ impl<'a> WindowMethods for JSRef<'a, Window> {
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}
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pub trait WindowHelpers {
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fn clear_js_context(self);
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fn clear_js_context_for_script_deallocation(self);
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fn flush_layout(self, goal: ReflowGoal, query: ReflowQueryType);
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fn init_browser_context(self, doc: JSRef<Document>, frame_element: Option<JSRef<Element>>);
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fn load_url(self, href: DOMString);
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fn handle_fire_timer(self, timer_id: TimerId);
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fn reflow(self, goal: ReflowGoal, query_type: ReflowQueryType);
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fn join_layout(self);
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fn layout(&self) -> &LayoutRPC;
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fn content_box_query(self, content_box_request: TrustedNodeAddress) -> Rect<Au>;
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fn content_boxes_query(self, content_boxes_request: TrustedNodeAddress) -> Vec<Rect<Au>>;
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fn handle_reflow_complete_msg(self, reflow_id: uint);
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fn handle_resize_inactive_msg(self, new_size: WindowSizeData);
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fn set_fragment_name(self, fragment: Option<String>);
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fn steal_fragment_name(self) -> Option<String>;
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fn set_window_size(self, size: WindowSizeData);
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fn window_size(self) -> WindowSizeData;
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fn get_url(self) -> Url;
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fn resource_task(self) -> ResourceTask;
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fn devtools_chan(self) -> Option<DevtoolsControlChan>;
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fn layout_chan(self) -> LayoutChan;
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fn constellation_chan(self) -> ConstellationChan;
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fn windowproxy_handler(self) -> WindowProxyHandler;
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fn get_next_subpage_id(self) -> SubpageId;
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fn layout_is_idle(self) -> bool;
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fn set_resize_event(self, event: WindowSizeData);
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fn steal_resize_event(self) -> Option<WindowSizeData>;
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fn set_page_clip_rect_with_new_viewport(self, viewport: Rect<f32>) -> bool;
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fn set_devtools_wants_updates(self, value: bool);
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fn IndexedGetter(self, _index: u32, _found: &mut bool) -> Option<Temporary<Window>>;
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fn thaw(self);
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fn freeze(self);
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@ -373,8 +460,132 @@ impl<'a, T: Reflectable> ScriptHelpers for JSRef<'a, T> {
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}
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impl<'a> WindowHelpers for JSRef<'a, Window> {
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fn clear_js_context(self) {
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*self.js_context.borrow_mut() = None;
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*self.browser_context.borrow_mut() = None;
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}
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#[allow(unsafe_blocks)]
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fn clear_js_context_for_script_deallocation(self) {
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unsafe {
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*self.js_context.borrow_for_script_deallocation() = None;
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*self.browser_context.borrow_for_script_deallocation() = None;
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}
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}
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fn flush_layout(self, goal: ReflowGoal, query: ReflowQueryType) {
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self.page().flush_layout(goal, query);
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self.reflow(goal, query);
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}
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/// Reflows the page if it's possible to do so and the page is dirty. This method will wait
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/// for the layout thread to complete (but see the `TODO` below). If there is no window size
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/// yet, the page is presumed invisible and no reflow is performed.
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///
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/// TODO(pcwalton): Only wait for style recalc, since we have off-main-thread layout.
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fn reflow(self, goal: ReflowGoal, query_type: ReflowQueryType) {
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let document = self.Document().root();
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let root = document.r().GetDocumentElement().root();
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let root = match root.r() {
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Some(root) => root,
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None => return,
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};
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debug!("script: performing reflow for goal {:?}", goal);
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let root: JSRef<Node> = NodeCast::from_ref(root);
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if !root.get_has_dirty_descendants() {
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debug!("root has no dirty descendants; avoiding reflow");
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return
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}
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debug!("script: performing reflow for goal {:?}", goal);
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// Layout will let us know when it's done.
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let (join_chan, join_port) = channel();
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{
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let mut layout_join_port = self.layout_join_port.borrow_mut();
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*layout_join_port = Some(join_port);
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}
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let last_reflow_id = &self.last_reflow_id;
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last_reflow_id.set(last_reflow_id.get() + 1);
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let window_size = self.window_size.get();
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// Send new document and relevant styles to layout.
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let reflow = box Reflow {
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document_root: root.to_trusted_node_address(),
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url: self.get_url(),
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iframe: self.subpage_id.is_some(),
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goal: goal,
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window_size: window_size,
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script_chan: self.control_chan.clone(),
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script_join_chan: join_chan,
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id: last_reflow_id.get(),
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query_type: query_type,
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page_clip_rect: self.page_clip_rect.get(),
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};
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let LayoutChan(ref chan) = self.layout_chan;
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chan.send(Msg::Reflow(reflow)).unwrap();
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debug!("script: layout forked");
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self.join_layout();
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}
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// FIXME(cgaebel): join_layout is racey. What if the compositor triggers a
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// reflow between the "join complete" message and returning from this
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// function?
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/// Sends a ping to layout and waits for the response. The response will arrive when the
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/// layout task has finished any pending request messages.
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fn join_layout(self) {
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let mut layout_join_port = self.layout_join_port.borrow_mut();
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if let Some(join_port) = replace(&mut *layout_join_port, None) {
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match join_port.try_recv() {
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Err(Empty) => {
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info!("script: waiting on layout");
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join_port.recv().unwrap();
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}
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Ok(_) => {}
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Err(Disconnected) => {
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panic!("Layout task failed while script was waiting for a result.");
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}
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}
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debug!("script: layout joined")
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}
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}
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fn layout(&self) -> &LayoutRPC {
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&*self.layout_rpc
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}
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fn content_box_query(self, content_box_request: TrustedNodeAddress) -> Rect<Au> {
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self.flush_layout(ReflowGoal::ForScriptQuery, ReflowQueryType::ContentBoxQuery(content_box_request));
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self.join_layout(); //FIXME: is this necessary, or is layout_rpc's mutex good enough?
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let ContentBoxResponse(rect) = self.layout_rpc.content_box();
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rect
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}
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fn content_boxes_query(self, content_boxes_request: TrustedNodeAddress) -> Vec<Rect<Au>> {
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self.flush_layout(ReflowGoal::ForScriptQuery, ReflowQueryType::ContentBoxesQuery(content_boxes_request));
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self.join_layout(); //FIXME: is this necessary, or is layout_rpc's mutex good enough?
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let ContentBoxesResponse(rects) = self.layout_rpc.content_boxes();
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rects
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}
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fn handle_reflow_complete_msg(self, reflow_id: uint) {
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let last_reflow_id = self.last_reflow_id.get();
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if last_reflow_id == reflow_id {
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*self.layout_join_port.borrow_mut() = None;
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}
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}
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fn handle_resize_inactive_msg(self, new_size: WindowSizeData) {
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self.window_size.set(new_size);
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}
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fn init_browser_context(self, doc: JSRef<Document>, frame_element: Option<JSRef<Element>>) {
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@ -383,17 +594,17 @@ impl<'a> WindowHelpers for JSRef<'a, Window> {
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/// Commence a new URL load which will either replace this window or scroll to a fragment.
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fn load_url(self, href: DOMString) {
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let base_url = self.page().get_url();
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let base_url = self.get_url();
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debug!("current page url is {}", base_url);
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let url = UrlParser::new().base_url(&base_url).parse(href.as_slice());
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// FIXME: handle URL parse errors more gracefully.
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let url = url.unwrap();
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match url.fragment {
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Some(fragment) => {
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self.script_chan.send(ScriptMsg::TriggerFragment(self.page.id, fragment)).unwrap();
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self.script_chan.send(ScriptMsg::TriggerFragment(self.id, fragment)).unwrap();
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},
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None => {
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self.script_chan.send(ScriptMsg::TriggerLoad(self.page.id, LoadData::new(url))).unwrap();
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self.script_chan.send(ScriptMsg::TriggerLoad(self.id, LoadData::new(url))).unwrap();
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}
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}
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}
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@ -403,6 +614,97 @@ impl<'a> WindowHelpers for JSRef<'a, Window> {
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self.flush_layout(ReflowGoal::ForDisplay, ReflowQueryType::NoQuery);
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}
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fn set_fragment_name(self, fragment: Option<String>) {
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*self.fragment_name.borrow_mut() = fragment;
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}
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fn steal_fragment_name(self) -> Option<String> {
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self.fragment_name.borrow_mut().take()
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}
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fn set_window_size(self, size: WindowSizeData) {
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self.window_size.set(size);
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}
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fn window_size(self) -> WindowSizeData {
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self.window_size.get()
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}
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||||
|
||||
fn get_url(self) -> Url {
|
||||
let doc = self.Document().root();
|
||||
doc.r().url()
|
||||
}
|
||||
|
||||
fn resource_task(self) -> ResourceTask {
|
||||
self.resource_task.clone()
|
||||
}
|
||||
|
||||
fn devtools_chan(self) -> Option<DevtoolsControlChan> {
|
||||
self.devtools_chan.clone()
|
||||
}
|
||||
|
||||
fn layout_chan(self) -> LayoutChan {
|
||||
self.layout_chan.clone()
|
||||
}
|
||||
|
||||
fn constellation_chan(self) -> ConstellationChan {
|
||||
self.constellation_chan.clone()
|
||||
}
|
||||
|
||||
fn windowproxy_handler(self) -> WindowProxyHandler {
|
||||
self.dom_static.windowproxy_handler
|
||||
}
|
||||
|
||||
fn get_next_subpage_id(self) -> SubpageId {
|
||||
let subpage_id = self.next_subpage_id.get();
|
||||
let SubpageId(id_num) = subpage_id;
|
||||
self.next_subpage_id.set(SubpageId(id_num + 1));
|
||||
subpage_id
|
||||
}
|
||||
|
||||
fn layout_is_idle(self) -> bool {
|
||||
self.layout_join_port.borrow().is_none()
|
||||
}
|
||||
|
||||
fn set_resize_event(self, event: WindowSizeData) {
|
||||
self.resize_event.set(Some(event));
|
||||
}
|
||||
|
||||
fn steal_resize_event(self) -> Option<WindowSizeData> {
|
||||
let event = self.resize_event.get();
|
||||
self.resize_event.set(None);
|
||||
event
|
||||
}
|
||||
|
||||
fn set_page_clip_rect_with_new_viewport(self, viewport: Rect<f32>) -> bool {
|
||||
// We use a clipping rectangle that is five times the size of the of the viewport,
|
||||
// so that we don't collect display list items for areas too far outside the viewport,
|
||||
// but also don't trigger reflows every time the viewport changes.
|
||||
static VIEWPORT_EXPANSION: f32 = 2.0; // 2 lengths on each side plus original length is 5 total.
|
||||
let proposed_clip_rect = geometry::f32_rect_to_au_rect(
|
||||
viewport.inflate(viewport.size.width * VIEWPORT_EXPANSION,
|
||||
viewport.size.height * VIEWPORT_EXPANSION));
|
||||
let clip_rect = self.page_clip_rect.get();
|
||||
if proposed_clip_rect == clip_rect {
|
||||
return false;
|
||||
}
|
||||
|
||||
let had_clip_rect = clip_rect != MAX_RECT;
|
||||
if had_clip_rect && !should_move_clip_rect(clip_rect, viewport) {
|
||||
return false;
|
||||
}
|
||||
|
||||
self.page_clip_rect.set(proposed_clip_rect);
|
||||
|
||||
// If we didn't have a clip rect, the previous display doesn't need rebuilding
|
||||
// because it was built for infinite clip (MAX_RECT).
|
||||
had_clip_rect
|
||||
}
|
||||
|
||||
fn set_devtools_wants_updates(self, value: bool) {
|
||||
self.devtools_wants_updates.set(value);
|
||||
}
|
||||
|
||||
// https://html.spec.whatwg.org/multipage/browsers.html#accessing-other-browsing-contexts
|
||||
fn IndexedGetter(self, _index: u32, _found: &mut bool) -> Option<Temporary<Window>> {
|
||||
None
|
||||
|
@ -419,13 +721,28 @@ impl<'a> WindowHelpers for JSRef<'a, Window> {
|
|||
}
|
||||
|
||||
impl Window {
|
||||
pub fn new(cx: *mut JSContext,
|
||||
pub fn new(js_context: Rc<Cx>,
|
||||
page: Rc<Page>,
|
||||
script_chan: Box<ScriptChan+Send>,
|
||||
control_chan: ScriptControlChan,
|
||||
compositor: Box<ScriptListener+'static>,
|
||||
image_cache_task: ImageCacheTask)
|
||||
image_cache_task: ImageCacheTask,
|
||||
resource_task: ResourceTask,
|
||||
storage_task: StorageTask,
|
||||
devtools_chan: Option<DevtoolsControlChan>,
|
||||
constellation_chan: ConstellationChan,
|
||||
layout_chan: LayoutChan,
|
||||
id: PipelineId,
|
||||
subpage_id: Option<SubpageId>,
|
||||
window_size: WindowSizeData)
|
||||
-> Temporary<Window> {
|
||||
let layout_rpc: Box<LayoutRPC> = {
|
||||
let (rpc_send, rpc_recv) = channel();
|
||||
let LayoutChan(ref lchan) = layout_chan;
|
||||
lchan.send(Msg::GetRPC(rpc_send)).unwrap();
|
||||
rpc_recv.recv().unwrap()
|
||||
};
|
||||
|
||||
let win = box Window {
|
||||
eventtarget: EventTarget::new_inherited(EventTargetTypeId::Window),
|
||||
script_chan: script_chan,
|
||||
|
@ -435,6 +752,7 @@ impl Window {
|
|||
page: page,
|
||||
navigator: Default::default(),
|
||||
image_cache_task: image_cache_task,
|
||||
devtools_chan: devtools_chan,
|
||||
browser_context: DOMRefCell::new(None),
|
||||
performance: Default::default(),
|
||||
navigation_start: time::get_time().sec as u64,
|
||||
|
@ -442,8 +760,43 @@ impl Window {
|
|||
screen: Default::default(),
|
||||
session_storage: Default::default(),
|
||||
timers: TimerManager::new(),
|
||||
id: id,
|
||||
subpage_id: subpage_id,
|
||||
dom_static: GlobalStaticData::new(),
|
||||
js_context: DOMRefCell::new(Some(js_context.clone())),
|
||||
resource_task: resource_task,
|
||||
storage_task: storage_task,
|
||||
constellation_chan: constellation_chan,
|
||||
page_clip_rect: Cell::new(MAX_RECT),
|
||||
fragment_name: DOMRefCell::new(None),
|
||||
last_reflow_id: Cell::new(0),
|
||||
resize_event: Cell::new(None),
|
||||
next_subpage_id: Cell::new(SubpageId(0)),
|
||||
layout_chan: layout_chan,
|
||||
layout_rpc: layout_rpc,
|
||||
layout_join_port: DOMRefCell::new(None),
|
||||
window_size: Cell::new(window_size),
|
||||
devtools_wants_updates: Cell::new(false),
|
||||
};
|
||||
|
||||
WindowBinding::Wrap(cx, win)
|
||||
WindowBinding::Wrap(js_context.ptr, win)
|
||||
}
|
||||
}
|
||||
|
||||
fn should_move_clip_rect(clip_rect: Rect<Au>, new_viewport: Rect<f32>) -> bool{
|
||||
let clip_rect = Rect(Point2D(geometry::to_frac_px(clip_rect.origin.x) as f32,
|
||||
geometry::to_frac_px(clip_rect.origin.y) as f32),
|
||||
Size2D(geometry::to_frac_px(clip_rect.size.width) as f32,
|
||||
geometry::to_frac_px(clip_rect.size.height) as f32));
|
||||
|
||||
// We only need to move the clip rect if the viewport is getting near the edge of
|
||||
// our preexisting clip rect. We use half of the size of the viewport as a heuristic
|
||||
// for "close."
|
||||
static VIEWPORT_SCROLL_MARGIN_SIZE: f32 = 0.5;
|
||||
let viewport_scroll_margin = new_viewport.size * VIEWPORT_SCROLL_MARGIN_SIZE;
|
||||
|
||||
(clip_rect.origin.x - new_viewport.origin.x).abs() <= viewport_scroll_margin.width ||
|
||||
(clip_rect.max_x() - new_viewport.max_x()).abs() <= viewport_scroll_margin.width ||
|
||||
(clip_rect.origin.y - new_viewport.origin.y).abs() <= viewport_scroll_margin.height ||
|
||||
(clip_rect.max_y() - new_viewport.max_y()).abs() <= viewport_scroll_margin.height
|
||||
}
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue