use std::borrow::{Cow, ToOwned};
use std::cell::{Cell, RefCell, RefMut};
use std::cmp;
use std::collections::hash_map::Entry;
use std::collections::{HashMap, HashSet};
use std::default::Default;
use std::io::{stderr, stdout, Write};
use std::ptr::NonNull;
use std::rc::Rc;
use std::sync::atomic::Ordering;
use std::sync::{Arc, Mutex};
use std::time::{Duration, Instant};
use app_units::Au;
use backtrace::Backtrace;
use base::cross_process_instant::CrossProcessInstant;
use base::id::{BrowsingContextId, PipelineId};
use base64::Engine;
use bluetooth_traits::BluetoothRequest;
use canvas_traits::webgl::WebGLChan;
use crossbeam_channel::{unbounded, Sender};
use cssparser::{Parser, ParserInput, SourceLocation};
use devtools_traits::{ScriptToDevtoolsControlMsg, TimelineMarker, TimelineMarkerType};
use dom_struct::dom_struct;
use embedder_traits::{EmbedderMsg, PromptDefinition, PromptOrigin, PromptResult};
use euclid::default::{Point2D as UntypedPoint2D, Rect as UntypedRect};
use euclid::{Point2D, Rect, Scale, Size2D, Vector2D};
use ipc_channel::ipc::{self, IpcSender};
use ipc_channel::router::ROUTER;
use js::conversions::ToJSValConvertible;
use js::jsapi::{GCReason, Heap, JSAutoRealm, JSObject, StackFormat, JSPROP_ENUMERATE, JS_GC};
use js::jsval::{NullValue, UndefinedValue};
use js::rust::wrappers::JS_DefineProperty;
use js::rust::{
CustomAutoRooter, CustomAutoRooterGuard, HandleObject, HandleValue, MutableHandleObject,
MutableHandleValue,
};
use malloc_size_of::MallocSizeOf;
use media::WindowGLContext;
use net_traits::image_cache::{
ImageCache, ImageResponder, ImageResponse, PendingImageId, PendingImageResponse,
};
use net_traits::storage_thread::StorageType;
use net_traits::ResourceThreads;
use num_traits::ToPrimitive;
use profile_traits::ipc as ProfiledIpc;
use profile_traits::mem::ProfilerChan as MemProfilerChan;
use profile_traits::time::ProfilerChan as TimeProfilerChan;
use script_layout_interface::{
combine_id_with_fragment_type, FragmentType, Layout, PendingImageState, QueryMsg, Reflow,
ReflowGoal, ReflowRequest, TrustedNodeAddress,
};
use script_traits::webdriver_msg::{WebDriverJSError, WebDriverJSResult};
use script_traits::{
ConstellationControlMsg, DocumentState, LoadData, NavigationHistoryBehavior, ScriptMsg,
ScriptToConstellationChan, ScrollState, StructuredSerializedData, Theme, TimerSchedulerMsg,
WindowSizeData, WindowSizeType,
};
use selectors::attr::CaseSensitivity;
use servo_arc::Arc as ServoArc;
use servo_atoms::Atom;
use servo_config::pref;
use servo_geometry::{f32_rect_to_au_rect, DeviceIndependentIntRect, MaxRect};
use servo_url::{ImmutableOrigin, MutableOrigin, ServoUrl};
use style::dom::OpaqueNode;
use style::error_reporting::{ContextualParseError, ParseErrorReporter};
use style::media_queries;
use style::parser::ParserContext as CssParserContext;
use style::properties::style_structs::Font;
use style::properties::PropertyId;
use style::queries::values::PrefersColorScheme;
use style::selector_parser::PseudoElement;
use style::str::HTML_SPACE_CHARACTERS;
use style::stylesheets::{CssRuleType, Origin, UrlExtraData};
use style_traits::{CSSPixel, ParsingMode};
use url::Position;
use webrender_api::units::{DevicePixel, LayoutPixel};
use webrender_api::{DocumentId, ExternalScrollId};
use webrender_traits::CrossProcessCompositorApi;
use super::bindings::codegen::Bindings::MessagePortBinding::StructuredSerializeOptions;
use super::bindings::trace::HashMapTracedValues;
use crate::dom::bindings::cell::{DomRefCell, Ref};
use crate::dom::bindings::codegen::Bindings::DocumentBinding::{
DocumentMethods, DocumentReadyState,
};
use crate::dom::bindings::codegen::Bindings::HTMLIFrameElementBinding::HTMLIFrameElementMethods;
use crate::dom::bindings::codegen::Bindings::HistoryBinding::History_Binding::HistoryMethods;
use crate::dom::bindings::codegen::Bindings::ImageBitmapBinding::{
ImageBitmapOptions, ImageBitmapSource,
};
use crate::dom::bindings::codegen::Bindings::MediaQueryListBinding::MediaQueryList_Binding::MediaQueryListMethods;
use crate::dom::bindings::codegen::Bindings::RequestBinding::RequestInit;
use crate::dom::bindings::codegen::Bindings::VoidFunctionBinding::VoidFunction;
use crate::dom::bindings::codegen::Bindings::WindowBinding::{
self, FrameRequestCallback, ScrollBehavior, ScrollToOptions, WindowMethods,
WindowPostMessageOptions,
};
use crate::dom::bindings::codegen::UnionTypes::{RequestOrUSVString, StringOrFunction};
use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
use crate::dom::bindings::inheritance::{Castable, ElementTypeId, HTMLElementTypeId, NodeTypeId};
use crate::dom::bindings::num::Finite;
use crate::dom::bindings::refcounted::Trusted;
use crate::dom::bindings::reflector::DomObject;
use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
use crate::dom::bindings::str::{DOMString, USVString};
use crate::dom::bindings::structuredclone;
use crate::dom::bindings::trace::{JSTraceable, RootedTraceableBox};
use crate::dom::bindings::utils::GlobalStaticData;
use crate::dom::bindings::weakref::DOMTracker;
use crate::dom::bluetooth::BluetoothExtraPermissionData;
use crate::dom::crypto::Crypto;
use crate::dom::cssstyledeclaration::{CSSModificationAccess, CSSStyleDeclaration, CSSStyleOwner};
use crate::dom::customelementregistry::CustomElementRegistry;
use crate::dom::document::{AnimationFrameCallback, Document, ReflowTriggerCondition};
use crate::dom::element::Element;
use crate::dom::event::{Event, EventBubbles, EventCancelable, EventStatus};
use crate::dom::eventtarget::EventTarget;
use crate::dom::globalscope::GlobalScope;
use crate::dom::hashchangeevent::HashChangeEvent;
use crate::dom::history::History;
use crate::dom::htmlcollection::{CollectionFilter, HTMLCollection};
use crate::dom::htmliframeelement::HTMLIFrameElement;
use crate::dom::location::Location;
use crate::dom::mediaquerylist::{MediaQueryList, MediaQueryListMatchState};
use crate::dom::mediaquerylistevent::MediaQueryListEvent;
use crate::dom::messageevent::MessageEvent;
use crate::dom::navigator::Navigator;
use crate::dom::node::{document_from_node, from_untrusted_node_address, Node, NodeDamage};
use crate::dom::performance::Performance;
use crate::dom::promise::Promise;
use crate::dom::screen::Screen;
use crate::dom::selection::Selection;
use crate::dom::storage::Storage;
use crate::dom::testrunner::TestRunner;
use crate::dom::types::UIEvent;
use crate::dom::webglrenderingcontext::WebGLCommandSender;
#[cfg(feature = "webgpu")]
use crate::dom::webgpu::identityhub::IdentityHub;
use crate::dom::windowproxy::{WindowProxy, WindowProxyHandler};
use crate::dom::worklet::Worklet;
use crate::dom::workletglobalscope::WorkletGlobalScopeType;
use crate::layout_image::fetch_image_for_layout;
use crate::microtask::MicrotaskQueue;
use crate::realms::{enter_realm, InRealm};
use crate::script_runtime::{
CanGc, CommonScriptMsg, JSContext, Runtime, ScriptChan, ScriptPort, ScriptThreadEventCategory,
};
use crate::script_thread::{
ImageCacheMsg, MainThreadScriptChan, MainThreadScriptMsg, ScriptThread,
SendableMainThreadScriptChan,
};
use crate::task_manager::TaskManager;
use crate::task_source::{TaskSource, TaskSourceName};
use crate::timers::{IsInterval, TimerCallback};
use crate::unminify::unminified_path;
use crate::webdriver_handlers::jsval_to_webdriver;
use crate::{fetch, window_named_properties};
#[derive(Clone, Copy, Debug, JSTraceable, MallocSizeOf, PartialEq)]
enum WindowState {
Alive,
Zombie, }
const INITIAL_REFLOW_DELAY: Duration = Duration::from_millis(200);
#[derive(Clone, Copy, MallocSizeOf)]
enum LayoutBlocker {
WaitingForParse,
Parsing(Instant),
FiredLoadEventOrParsingTimerExpired,
}
impl LayoutBlocker {
fn layout_blocked(&self) -> bool {
!matches!(self, Self::FiredLoadEventOrParsingTimerExpired)
}
}
#[dom_struct]
pub struct Window {
globalscope: GlobalScope,
#[ignore_malloc_size_of = "trait objects are hard"]
script_chan: MainThreadScriptChan,
task_manager: TaskManager,
#[no_trace]
#[ignore_malloc_size_of = "TODO: Add MallocSizeOf support to layout"]
layout: RefCell<Box<dyn Layout>>,
navigator: MutNullableDom<Navigator>,
#[ignore_malloc_size_of = "Arc"]
#[no_trace]
image_cache: Arc<dyn ImageCache>,
#[ignore_malloc_size_of = "channels are hard"]
#[no_trace]
image_cache_chan: Sender<ImageCacheMsg>,
window_proxy: MutNullableDom<WindowProxy>,
document: MutNullableDom<Document>,
location: MutNullableDom<Location>,
history: MutNullableDom<History>,
custom_element_registry: MutNullableDom<CustomElementRegistry>,
performance: MutNullableDom<Performance>,
#[no_trace]
navigation_start: Cell<CrossProcessInstant>,
screen: MutNullableDom<Screen>,
session_storage: MutNullableDom<Storage>,
local_storage: MutNullableDom<Storage>,
status: DomRefCell<DOMString>,
#[no_trace]
devtools_markers: DomRefCell<HashSet<TimelineMarkerType>>,
#[ignore_malloc_size_of = "channels are hard"]
#[no_trace]
devtools_marker_sender: DomRefCell<Option<IpcSender<Option<TimelineMarker>>>>,
#[no_trace]
unhandled_resize_event: DomRefCell<Option<(WindowSizeData, WindowSizeType)>>,
#[no_trace]
theme: Cell<PrefersColorScheme>,
#[no_trace]
parent_info: Option<PipelineId>,
dom_static: GlobalStaticData,
#[ignore_malloc_size_of = "Rc<T> is hard"]
js_runtime: DomRefCell<Option<Rc<Runtime>>>,
#[no_trace]
window_size: Cell<WindowSizeData>,
#[ignore_malloc_size_of = "channels are hard"]
#[no_trace]
bluetooth_thread: IpcSender<BluetoothRequest>,
bluetooth_extra_permission_data: BluetoothExtraPermissionData,
#[no_trace]
page_clip_rect: Cell<UntypedRect<Au>>,
#[no_trace]
layout_blocker: Cell<LayoutBlocker>,
#[ignore_malloc_size_of = "channels are hard"]
#[no_trace]
webdriver_script_chan: DomRefCell<Option<IpcSender<WebDriverJSResult>>>,
current_state: Cell<WindowState>,
#[no_trace]
current_viewport: Cell<UntypedRect<Au>>,
error_reporter: CSSErrorReporter,
#[no_trace]
scroll_offsets: DomRefCell<HashMap<OpaqueNode, Vector2D<f32, LayoutPixel>>>,
media_query_lists: DOMTracker<MediaQueryList>,
test_runner: MutNullableDom<TestRunner>,
#[ignore_malloc_size_of = "channels are hard"]
#[no_trace]
webgl_chan: Option<WebGLChan>,
#[ignore_malloc_size_of = "defined in webxr"]
#[no_trace]
#[cfg(feature = "webxr")]
webxr_registry: Option<webxr_api::Registry>,
pending_layout_images: DomRefCell<HashMapTracedValues<PendingImageId, Vec<Dom<Node>>>>,
unminified_css_dir: DomRefCell<Option<String>>,
local_script_source: Option<String>,
test_worklet: MutNullableDom<Worklet>,
paint_worklet: MutNullableDom<Worklet>,
#[ignore_malloc_size_of = "defined in webrender_api"]
#[no_trace]
webrender_document: DocumentId,
exists_mut_observer: Cell<bool>,
#[ignore_malloc_size_of = "Wraps an IpcSender"]
#[no_trace]
compositor_api: CrossProcessCompositorApi,
has_sent_idle_message: Cell<bool>,
relayout_event: bool,
prepare_for_screenshot: bool,
unminify_css: bool,
userscripts_path: Option<String>,
replace_surrogates: bool,
#[ignore_malloc_size_of = "defined in script_thread"]
#[no_trace]
player_context: WindowGLContext,
throttled: Cell<bool>,
#[ignore_malloc_size_of = "Rc is hard"]
layout_marker: DomRefCell<Rc<Cell<bool>>>,
current_event: DomRefCell<Option<Dom<Event>>>,
}
impl Window {
pub fn task_manager(&self) -> &TaskManager {
&self.task_manager
}
pub fn layout(&self) -> Ref<Box<dyn Layout>> {
self.layout.borrow()
}
pub fn layout_mut(&self) -> RefMut<Box<dyn Layout>> {
self.layout.borrow_mut()
}
pub fn get_exists_mut_observer(&self) -> bool {
self.exists_mut_observer.get()
}
pub fn set_exists_mut_observer(&self) {
self.exists_mut_observer.set(true);
}
#[allow(unsafe_code)]
pub fn clear_js_runtime_for_script_deallocation(&self) {
self.upcast::<GlobalScope>()
.remove_web_messaging_and_dedicated_workers_infra();
unsafe {
*self.js_runtime.borrow_for_script_deallocation() = None;
self.window_proxy.set(None);
self.current_state.set(WindowState::Zombie);
self.ignore_all_tasks();
}
}
pub fn discard_browsing_context(&self) {
let proxy = match self.window_proxy.get() {
Some(proxy) => proxy,
None => panic!("Discarding a BC from a window that has none"),
};
proxy.discard_browsing_context();
self.ignore_all_tasks();
}
pub fn ignore_all_tasks(&self) {
let mut ignore_flags = self.task_manager.task_cancellers.borrow_mut();
for task_source_name in TaskSourceName::all() {
let flag = ignore_flags.entry(*task_source_name).or_default();
flag.store(true, Ordering::SeqCst);
}
}
pub fn time_profiler_chan(&self) -> &TimeProfilerChan {
self.globalscope.time_profiler_chan()
}
pub fn origin(&self) -> &MutableOrigin {
self.globalscope.origin()
}
#[allow(unsafe_code)]
pub fn get_cx(&self) -> JSContext {
unsafe { JSContext::from_ptr(self.js_runtime.borrow().as_ref().unwrap().cx()) }
}
pub fn get_js_runtime(&self) -> Ref<Option<Rc<Runtime>>> {
self.js_runtime.borrow()
}
pub fn main_thread_script_chan(&self) -> &Sender<MainThreadScriptMsg> {
&self.script_chan.0
}
pub fn parent_info(&self) -> Option<PipelineId> {
self.parent_info
}
pub fn new_script_pair(&self) -> (Box<dyn ScriptChan + Send>, Box<dyn ScriptPort + Send>) {
let (tx, rx) = unbounded();
(Box::new(SendableMainThreadScriptChan(tx)), Box::new(rx))
}
pub fn image_cache(&self) -> Arc<dyn ImageCache> {
self.image_cache.clone()
}
pub fn window_proxy(&self) -> DomRoot<WindowProxy> {
self.window_proxy.get().unwrap()
}
pub fn undiscarded_window_proxy(&self) -> Option<DomRoot<WindowProxy>> {
self.window_proxy.get().and_then(|window_proxy| {
if window_proxy.is_browsing_context_discarded() {
None
} else {
Some(window_proxy)
}
})
}
pub fn bluetooth_thread(&self) -> IpcSender<BluetoothRequest> {
self.bluetooth_thread.clone()
}
pub fn bluetooth_extra_permission_data(&self) -> &BluetoothExtraPermissionData {
&self.bluetooth_extra_permission_data
}
pub fn css_error_reporter(&self) -> Option<&dyn ParseErrorReporter> {
Some(&self.error_reporter)
}
pub fn set_scroll_offsets(&self, offsets: HashMap<OpaqueNode, Vector2D<f32, LayoutPixel>>) {
*self.scroll_offsets.borrow_mut() = offsets
}
pub fn current_viewport(&self) -> UntypedRect<Au> {
self.current_viewport.clone().get()
}
pub(crate) fn webgl_chan(&self) -> Option<WebGLCommandSender> {
self.webgl_chan
.as_ref()
.map(|chan| WebGLCommandSender::new(chan.clone()))
}
#[cfg(feature = "webxr")]
pub fn webxr_registry(&self) -> Option<webxr_api::Registry> {
self.webxr_registry.clone()
}
fn new_paint_worklet(&self) -> DomRoot<Worklet> {
debug!("Creating new paint worklet.");
Worklet::new(self, WorkletGlobalScopeType::Paint)
}
pub fn pending_image_notification(&self, response: PendingImageResponse) {
let mut images = self.pending_layout_images.borrow_mut();
let nodes = images.entry(response.id);
let nodes = match nodes {
Entry::Occupied(nodes) => nodes,
Entry::Vacant(_) => return,
};
for node in nodes.get() {
node.dirty(NodeDamage::OtherNodeDamage);
}
match response.response {
ImageResponse::MetadataLoaded(_) => {},
ImageResponse::Loaded(_, _) |
ImageResponse::PlaceholderLoaded(_, _) |
ImageResponse::None => {
nodes.remove();
},
}
}
pub fn compositor_api(&self) -> &CrossProcessCompositorApi {
&self.compositor_api
}
pub fn get_userscripts_path(&self) -> Option<String> {
self.userscripts_path.clone()
}
pub fn replace_surrogates(&self) -> bool {
self.replace_surrogates
}
pub fn get_player_context(&self) -> WindowGLContext {
self.player_context.clone()
}
pub fn dispatch_event_with_target_override(&self, event: &Event, can_gc: CanGc) -> EventStatus {
event.dispatch(self.upcast(), true, can_gc)
}
}
pub fn base64_btoa(input: DOMString) -> Fallible<DOMString> {
if input.chars().any(|c: char| c > '\u{FF}') {
Err(Error::InvalidCharacter)
} else {
let octets = input.chars().map(|c: char| c as u8).collect::<Vec<u8>>();
let config =
base64::engine::general_purpose::GeneralPurposeConfig::new().with_encode_padding(true);
let engine = base64::engine::GeneralPurpose::new(&base64::alphabet::STANDARD, config);
Ok(DOMString::from(engine.encode(octets)))
}
}
pub fn base64_atob(input: DOMString) -> Fallible<DOMString> {
fn is_html_space(c: char) -> bool {
HTML_SPACE_CHARACTERS.iter().any(|&m| m == c)
}
let without_spaces = input
.chars()
.filter(|&c| !is_html_space(c))
.collect::<String>();
let mut input = &*without_spaces;
if input.len() % 4 == 0 {
if input.ends_with("==") {
input = &input[..input.len() - 2]
} else if input.ends_with('=') {
input = &input[..input.len() - 1]
}
}
if input.len() % 4 == 1 {
return Err(Error::InvalidCharacter);
}
if input
.chars()
.any(|c| c != '+' && c != '/' && !c.is_alphanumeric())
{
return Err(Error::InvalidCharacter);
}
let config = base64::engine::general_purpose::GeneralPurposeConfig::new()
.with_decode_padding_mode(base64::engine::DecodePaddingMode::RequireNone)
.with_decode_allow_trailing_bits(true);
let engine = base64::engine::GeneralPurpose::new(&base64::alphabet::STANDARD, config);
let data = engine.decode(input).map_err(|_| Error::InvalidCharacter)?;
Ok(data.iter().map(|&b| b as char).collect::<String>().into())
}
impl WindowMethods<crate::DomTypeHolder> for Window {
fn Alert_(&self) {
self.Alert(DOMString::new());
}
fn Alert(&self, s: DOMString) {
{
let stderr = stderr();
let mut stderr = stderr.lock();
let stdout = stdout();
let mut stdout = stdout.lock();
writeln!(&mut stdout, "\nALERT: {}", s).unwrap();
stdout.flush().unwrap();
stderr.flush().unwrap();
}
let (sender, receiver) =
ProfiledIpc::channel(self.global().time_profiler_chan().clone()).unwrap();
let prompt = PromptDefinition::Alert(s.to_string(), sender);
let msg = EmbedderMsg::Prompt(prompt, PromptOrigin::Untrusted);
self.send_to_embedder(msg);
receiver.recv().unwrap();
}
fn Confirm(&self, s: DOMString) -> bool {
let (sender, receiver) =
ProfiledIpc::channel(self.global().time_profiler_chan().clone()).unwrap();
let prompt = PromptDefinition::OkCancel(s.to_string(), sender);
let msg = EmbedderMsg::Prompt(prompt, PromptOrigin::Untrusted);
self.send_to_embedder(msg);
receiver.recv().unwrap() == PromptResult::Primary
}
fn Prompt(&self, message: DOMString, default: DOMString) -> Option<DOMString> {
let (sender, receiver) =
ProfiledIpc::channel(self.global().time_profiler_chan().clone()).unwrap();
let prompt = PromptDefinition::Input(message.to_string(), default.to_string(), sender);
let msg = EmbedderMsg::Prompt(prompt, PromptOrigin::Untrusted);
self.send_to_embedder(msg);
receiver.recv().unwrap().map(|s| s.into())
}
fn Stop(&self, can_gc: CanGc) {
let doc = self.Document();
doc.abort(can_gc);
}
fn Open(
&self,
url: USVString,
target: DOMString,
features: DOMString,
can_gc: CanGc,
) -> Fallible<Option<DomRoot<WindowProxy>>> {
self.window_proxy().open(url, target, features, can_gc)
}
fn GetOpener(
&self,
cx: JSContext,
in_realm_proof: InRealm,
mut retval: MutableHandleValue,
) -> Fallible<()> {
let current = match self.window_proxy.get() {
Some(proxy) => proxy,
None => {
retval.set(NullValue());
return Ok(());
},
};
if current.is_browsing_context_discarded() {
retval.set(NullValue());
return Ok(());
}
current.opener(*cx, in_realm_proof, retval);
Ok(())
}
#[allow(unsafe_code)]
fn SetOpener(&self, cx: JSContext, value: HandleValue) -> ErrorResult {
if value.is_null() {
if let Some(proxy) = self.window_proxy.get() {
proxy.disown();
}
return Ok(());
}
let obj = self.reflector().get_jsobject();
unsafe {
let result =
JS_DefineProperty(*cx, obj, c"opener".as_ptr(), value, JSPROP_ENUMERATE as u32);
if result {
Ok(())
} else {
Err(Error::JSFailed)
}
}
}
fn Closed(&self) -> bool {
self.window_proxy
.get()
.map(|ref proxy| proxy.is_browsing_context_discarded() || proxy.is_closing())
.unwrap_or(true)
}
fn Close(&self) {
let window_proxy = match self.window_proxy.get() {
Some(proxy) => proxy,
None => return,
};
if window_proxy.is_closing() {
return;
}
if let Ok(history_length) = self.History().GetLength() {
let is_auxiliary = window_proxy.is_auxiliary();
let is_script_closable = (self.is_top_level() && history_length == 1) ||
is_auxiliary ||
pref!(dom.allow_scripts_to_close_windows);
if is_script_closable {
window_proxy.close();
let this = Trusted::new(self);
let task = task!(window_close_browsing_context: move || {
let window = this.root();
let document = window.Document();
if document.prompt_to_unload(false, CanGc::note()) {
document.unload(false, CanGc::note());
window.discard_browsing_context();
window.send_to_constellation(ScriptMsg::DiscardTopLevelBrowsingContext);
}
});
self.task_manager()
.dom_manipulation_task_source()
.queue(task, self.upcast::<GlobalScope>())
.expect("Queuing window_close_browsing_context task to work");
}
}
}
fn Document(&self) -> DomRoot<Document> {
self.document
.get()
.expect("Document accessed before initialization.")
}
fn History(&self) -> DomRoot<History> {
self.history.or_init(|| History::new(self))
}
fn CustomElements(&self) -> DomRoot<CustomElementRegistry> {
self.custom_element_registry
.or_init(|| CustomElementRegistry::new(self))
}
fn Location(&self) -> DomRoot<Location> {
self.location.or_init(|| Location::new(self))
}
fn SessionStorage(&self) -> DomRoot<Storage> {
self.session_storage
.or_init(|| Storage::new(self, StorageType::Session))
}
fn LocalStorage(&self) -> DomRoot<Storage> {
self.local_storage
.or_init(|| Storage::new(self, StorageType::Local))
}
fn Crypto(&self) -> DomRoot<Crypto> {
self.upcast::<GlobalScope>().crypto()
}
fn GetFrameElement(&self) -> Option<DomRoot<Element>> {
let window_proxy = self.window_proxy.get()?;
let container = window_proxy.frame_element()?;
let container_doc = document_from_node(container);
let current_doc = GlobalScope::current()
.expect("No current global object")
.as_window()
.Document();
if !current_doc
.origin()
.same_origin_domain(container_doc.origin())
{
return None;
}
Some(DomRoot::from_ref(container))
}
fn Navigator(&self) -> DomRoot<Navigator> {
self.navigator.or_init(|| Navigator::new(self))
}
fn SetTimeout(
&self,
_cx: JSContext,
callback: StringOrFunction,
timeout: i32,
args: Vec<HandleValue>,
) -> i32 {
let callback = match callback {
StringOrFunction::String(i) => TimerCallback::StringTimerCallback(i),
StringOrFunction::Function(i) => TimerCallback::FunctionTimerCallback(i),
};
self.upcast::<GlobalScope>().set_timeout_or_interval(
callback,
args,
Duration::from_millis(timeout.max(0) as u64),
IsInterval::NonInterval,
)
}
fn ClearTimeout(&self, handle: i32) {
self.upcast::<GlobalScope>()
.clear_timeout_or_interval(handle);
}
fn SetInterval(
&self,
_cx: JSContext,
callback: StringOrFunction,
timeout: i32,
args: Vec<HandleValue>,
) -> i32 {
let callback = match callback {
StringOrFunction::String(i) => TimerCallback::StringTimerCallback(i),
StringOrFunction::Function(i) => TimerCallback::FunctionTimerCallback(i),
};
self.upcast::<GlobalScope>().set_timeout_or_interval(
callback,
args,
Duration::from_millis(timeout.max(0) as u64),
IsInterval::Interval,
)
}
fn ClearInterval(&self, handle: i32) {
self.ClearTimeout(handle);
}
fn QueueMicrotask(&self, callback: Rc<VoidFunction>) {
self.upcast::<GlobalScope>()
.queue_function_as_microtask(callback);
}
fn CreateImageBitmap(
&self,
image: ImageBitmapSource,
options: &ImageBitmapOptions,
can_gc: CanGc,
) -> Rc<Promise> {
let p = self
.upcast::<GlobalScope>()
.create_image_bitmap(image, options, can_gc);
p
}
fn Window(&self) -> DomRoot<WindowProxy> {
self.window_proxy()
}
fn Self_(&self) -> DomRoot<WindowProxy> {
self.window_proxy()
}
fn Frames(&self) -> DomRoot<WindowProxy> {
self.window_proxy()
}
fn Length(&self) -> u32 {
self.Document().iframes().iter().count() as u32
}
fn GetParent(&self) -> Option<DomRoot<WindowProxy>> {
let window_proxy = self.undiscarded_window_proxy()?;
if let Some(parent) = window_proxy.parent() {
return Some(DomRoot::from_ref(parent));
}
Some(window_proxy)
}
fn GetTop(&self) -> Option<DomRoot<WindowProxy>> {
let window_proxy = self.undiscarded_window_proxy()?;
Some(DomRoot::from_ref(window_proxy.top()))
}
fn Performance(&self) -> DomRoot<Performance> {
self.performance.or_init(|| {
let global_scope = self.upcast::<GlobalScope>();
Performance::new(global_scope, self.navigation_start.get())
})
}
global_event_handlers!();
window_event_handlers!();
fn Screen(&self) -> DomRoot<Screen> {
self.screen.or_init(|| Screen::new(self))
}
fn Btoa(&self, btoa: DOMString) -> Fallible<DOMString> {
base64_btoa(btoa)
}
fn Atob(&self, atob: DOMString) -> Fallible<DOMString> {
base64_atob(atob)
}
fn RequestAnimationFrame(&self, callback: Rc<FrameRequestCallback>) -> u32 {
self.Document()
.request_animation_frame(AnimationFrameCallback::FrameRequestCallback { callback })
}
fn CancelAnimationFrame(&self, ident: u32) {
let doc = self.Document();
doc.cancel_animation_frame(ident);
}
fn PostMessage(
&self,
cx: JSContext,
message: HandleValue,
target_origin: USVString,
transfer: CustomAutoRooterGuard<Vec<*mut JSObject>>,
) -> ErrorResult {
let incumbent = GlobalScope::incumbent().expect("no incumbent global?");
let source = incumbent.as_window();
let source_origin = source.Document().origin().immutable().clone();
self.post_message_impl(&target_origin, source_origin, source, cx, message, transfer)
}
fn PostMessage_(
&self,
cx: JSContext,
message: HandleValue,
options: RootedTraceableBox<WindowPostMessageOptions>,
) -> ErrorResult {
let mut rooted = CustomAutoRooter::new(
options
.parent
.transfer
.iter()
.map(|js: &RootedTraceableBox<Heap<*mut JSObject>>| js.get())
.collect(),
);
let transfer = CustomAutoRooterGuard::new(*cx, &mut rooted);
let incumbent = GlobalScope::incumbent().expect("no incumbent global?");
let source = incumbent.as_window();
let source_origin = source.Document().origin().immutable().clone();
self.post_message_impl(
&options.targetOrigin,
source_origin,
source,
cx,
message,
transfer,
)
}
fn CaptureEvents(&self) {
}
fn ReleaseEvents(&self) {
}
fn Debug(&self, message: DOMString) {
debug!("{}", message);
}
#[allow(unsafe_code)]
fn Gc(&self) {
unsafe {
JS_GC(*self.get_cx(), GCReason::API);
}
}
#[allow(unsafe_code)]
fn Js_backtrace(&self) {
unsafe {
capture_stack!(in(*self.get_cx()) let stack);
let js_stack = stack.and_then(|s| s.as_string(None, StackFormat::SpiderMonkey));
let rust_stack = Backtrace::new();
println!(
"Current JS stack:\n{}\nCurrent Rust stack:\n{:?}",
js_stack.unwrap_or_default(),
rust_stack
);
}
}
#[allow(unsafe_code)]
fn WebdriverCallback(&self, cx: JSContext, val: HandleValue) {
let rv = unsafe { jsval_to_webdriver(*cx, &self.globalscope, val) };
let opt_chan = self.webdriver_script_chan.borrow_mut().take();
if let Some(chan) = opt_chan {
chan.send(rv).unwrap();
}
}
fn WebdriverTimeout(&self) {
let opt_chan = self.webdriver_script_chan.borrow_mut().take();
if let Some(chan) = opt_chan {
chan.send(Err(WebDriverJSError::Timeout)).unwrap();
}
}
fn GetComputedStyle(
&self,
element: &Element,
pseudo: Option<DOMString>,
) -> DomRoot<CSSStyleDeclaration> {
let pseudo = pseudo.map(|mut s| {
s.make_ascii_lowercase();
s
});
let pseudo = match pseudo {
Some(ref pseudo) if pseudo == ":before" || pseudo == "::before" => {
Some(PseudoElement::Before)
},
Some(ref pseudo) if pseudo == ":after" || pseudo == "::after" => {
Some(PseudoElement::After)
},
_ => None,
};
CSSStyleDeclaration::new(
self,
CSSStyleOwner::Element(Dom::from_ref(element)),
pseudo,
CSSModificationAccess::Readonly,
)
}
fn InnerHeight(&self) -> i32 {
self.window_size
.get()
.initial_viewport
.height
.to_i32()
.unwrap_or(0)
}
fn InnerWidth(&self) -> i32 {
self.window_size
.get()
.initial_viewport
.width
.to_i32()
.unwrap_or(0)
}
fn ScrollX(&self) -> i32 {
self.current_viewport.get().origin.x.to_px()
}
fn PageXOffset(&self) -> i32 {
self.ScrollX()
}
fn ScrollY(&self) -> i32 {
self.current_viewport.get().origin.y.to_px()
}
fn PageYOffset(&self) -> i32 {
self.ScrollY()
}
fn Scroll(&self, options: &ScrollToOptions, can_gc: CanGc) {
let left = options.left.unwrap_or(0.0f64);
let top = options.top.unwrap_or(0.0f64);
self.scroll(left, top, options.parent.behavior, can_gc);
}
fn Scroll_(&self, x: f64, y: f64, can_gc: CanGc) {
self.scroll(x, y, ScrollBehavior::Auto, can_gc);
}
fn ScrollTo(&self, options: &ScrollToOptions) {
self.Scroll(options, CanGc::note());
}
fn ScrollTo_(&self, x: f64, y: f64) {
self.scroll(x, y, ScrollBehavior::Auto, CanGc::note());
}
fn ScrollBy(&self, options: &ScrollToOptions, can_gc: CanGc) {
let x = options.left.unwrap_or(0.0f64);
let y = options.top.unwrap_or(0.0f64);
self.ScrollBy_(x, y, can_gc);
self.scroll(x, y, options.parent.behavior, can_gc);
}
fn ScrollBy_(&self, x: f64, y: f64, can_gc: CanGc) {
let left = x + self.ScrollX() as f64;
let top = y + self.ScrollY() as f64;
self.scroll(left, top, ScrollBehavior::Auto, can_gc);
}
fn ResizeTo(&self, width: i32, height: i32) {
let dpr = self.device_pixel_ratio();
let size = Size2D::new(width, height).to_f32() * dpr;
self.send_to_embedder(EmbedderMsg::ResizeTo(size.to_i32()));
}
fn ResizeBy(&self, x: i32, y: i32) {
let (size, _) = self.client_window();
self.ResizeTo(
x + size.width.to_i32().unwrap_or(1),
y + size.height.to_i32().unwrap_or(1),
)
}
fn MoveTo(&self, x: i32, y: i32) {
let dpr = self.device_pixel_ratio();
let point = Point2D::new(x, y).to_f32() * dpr;
let msg = EmbedderMsg::MoveTo(point.to_i32());
self.send_to_embedder(msg);
}
fn MoveBy(&self, x: i32, y: i32) {
let (_, origin) = self.client_window();
self.MoveTo(x + origin.x, y + origin.y)
}
fn ScreenX(&self) -> i32 {
let (_, origin) = self.client_window();
origin.x
}
fn ScreenY(&self) -> i32 {
let (_, origin) = self.client_window();
origin.y
}
fn OuterHeight(&self) -> i32 {
let (size, _) = self.client_window();
size.height.to_i32().unwrap_or(1)
}
fn OuterWidth(&self) -> i32 {
let (size, _) = self.client_window();
size.width.to_i32().unwrap_or(1)
}
fn DevicePixelRatio(&self) -> Finite<f64> {
Finite::wrap(self.device_pixel_ratio().get() as f64)
}
fn Status(&self) -> DOMString {
self.status.borrow().clone()
}
fn SetStatus(&self, status: DOMString) {
*self.status.borrow_mut() = status
}
fn MatchMedia(&self, query: DOMString) -> DomRoot<MediaQueryList> {
let mut input = ParserInput::new(&query);
let mut parser = Parser::new(&mut input);
let url_data = UrlExtraData(self.get_url().get_arc());
let quirks_mode = self.Document().quirks_mode();
let context = CssParserContext::new(
Origin::Author,
&url_data,
Some(CssRuleType::Media),
ParsingMode::DEFAULT,
quirks_mode,
Default::default(),
self.css_error_reporter(),
None,
);
let media_query_list = media_queries::MediaList::parse(&context, &mut parser);
let document = self.Document();
let mql = MediaQueryList::new(&document, media_query_list);
self.media_query_lists.track(&*mql);
mql
}
fn Fetch(
&self,
input: RequestOrUSVString,
init: RootedTraceableBox<RequestInit>,
comp: InRealm,
can_gc: CanGc,
) -> Rc<Promise> {
fetch::Fetch(self.upcast(), input, init, comp, can_gc)
}
fn TestRunner(&self) -> DomRoot<TestRunner> {
self.test_runner.or_init(|| TestRunner::new(self.upcast()))
}
fn RunningAnimationCount(&self) -> u32 {
self.document
.get()
.map_or(0, |d| d.animations().running_animation_count() as u32)
}
fn SetName(&self, name: DOMString) {
if let Some(proxy) = self.undiscarded_window_proxy() {
proxy.set_name(name);
}
}
fn Name(&self) -> DOMString {
match self.undiscarded_window_proxy() {
Some(proxy) => proxy.get_name(),
None => "".into(),
}
}
fn Origin(&self) -> USVString {
USVString(self.origin().immutable().ascii_serialization())
}
fn GetSelection(&self) -> Option<DomRoot<Selection>> {
self.document.get().and_then(|d| d.GetSelection())
}
#[allow(unsafe_code)]
fn Event(&self, cx: JSContext, rval: MutableHandleValue) {
if let Some(ref event) = *self.current_event.borrow() {
unsafe {
event.reflector().get_jsobject().to_jsval(*cx, rval);
}
}
}
fn IsSecureContext(&self) -> bool {
self.upcast::<GlobalScope>().is_secure_context()
}
#[allow(unsafe_code)]
fn NamedGetter(&self, _cx: JSContext, name: DOMString) -> Option<NonNull<JSObject>> {
if name.is_empty() {
return None;
}
let document = self.Document();
let iframes: Vec<_> = document
.iframes()
.iter()
.filter(|iframe| {
if let Some(window) = iframe.GetContentWindow() {
return window.get_name() == name;
}
false
})
.collect();
let iframe_iter = iframes.iter().map(|iframe| iframe.upcast::<Element>());
let name = Atom::from(&*name);
let elements_with_name = document.get_elements_with_name(&name);
let name_iter = elements_with_name
.iter()
.map(|element| &**element)
.filter(|elem| is_named_element_with_name_attribute(elem));
let elements_with_id = document.get_elements_with_id(&name);
let id_iter = elements_with_id
.iter()
.map(|element| &**element)
.filter(|elem| is_named_element_with_id_attribute(elem));
for elem in iframe_iter.clone() {
if let Some(nested_window_proxy) = elem
.downcast::<HTMLIFrameElement>()
.and_then(|iframe| iframe.GetContentWindow())
{
unsafe {
return Some(NonNull::new_unchecked(
nested_window_proxy.reflector().get_jsobject().get(),
));
}
}
}
let mut elements = iframe_iter.chain(name_iter).chain(id_iter);
let first = elements.next()?;
if elements.next().is_none() {
unsafe {
return Some(NonNull::new_unchecked(
first.reflector().get_jsobject().get(),
));
}
}
#[derive(JSTraceable, MallocSizeOf)]
struct WindowNamedGetter {
#[no_trace]
name: Atom,
}
impl CollectionFilter for WindowNamedGetter {
fn filter(&self, elem: &Element, _root: &Node) -> bool {
let type_ = match elem.upcast::<Node>().type_id() {
NodeTypeId::Element(ElementTypeId::HTMLElement(type_)) => type_,
_ => return false,
};
if elem.get_id().as_ref() == Some(&self.name) {
return true;
}
match type_ {
HTMLElementTypeId::HTMLEmbedElement |
HTMLElementTypeId::HTMLFormElement |
HTMLElementTypeId::HTMLImageElement |
HTMLElementTypeId::HTMLObjectElement => {
elem.get_name().as_ref() == Some(&self.name)
},
_ => false,
}
}
}
let collection = HTMLCollection::create(
self,
document.upcast(),
Box::new(WindowNamedGetter { name }),
);
unsafe {
Some(NonNull::new_unchecked(
collection.reflector().get_jsobject().get(),
))
}
}
fn SupportedPropertyNames(&self) -> Vec<DOMString> {
let mut names_with_first_named_element_map: HashMap<&Atom, &Element> = HashMap::new();
let document = self.Document();
let name_map = document.name_map();
for (name, elements) in &name_map.0 {
if name.is_empty() {
continue;
}
let mut name_iter = elements
.iter()
.filter(|elem| is_named_element_with_name_attribute(elem));
if let Some(first) = name_iter.next() {
names_with_first_named_element_map.insert(name, first);
}
}
let id_map = document.id_map();
for (id, elements) in &id_map.0 {
if id.is_empty() {
continue;
}
let mut id_iter = elements
.iter()
.filter(|elem| is_named_element_with_id_attribute(elem));
if let Some(first) = id_iter.next() {
match names_with_first_named_element_map.entry(id) {
Entry::Vacant(entry) => drop(entry.insert(first)),
Entry::Occupied(mut entry) => {
if first.upcast::<Node>().is_before(entry.get().upcast()) {
*entry.get_mut() = first;
}
},
}
}
}
let mut names_with_first_named_element_vec: Vec<(&Atom, &Element)> =
names_with_first_named_element_map
.iter()
.map(|(k, v)| (*k, *v))
.collect();
names_with_first_named_element_vec.sort_unstable_by(|a, b| {
if a.1 == b.1 {
a.0.cmp(b.0)
} else if a.1.upcast::<Node>().is_before(b.1.upcast::<Node>()) {
cmp::Ordering::Less
} else {
cmp::Ordering::Greater
}
});
names_with_first_named_element_vec
.iter()
.map(|(k, _v)| DOMString::from(&***k))
.collect()
}
fn StructuredClone(
&self,
cx: JSContext,
value: HandleValue,
options: RootedTraceableBox<StructuredSerializeOptions>,
retval: MutableHandleValue,
) -> Fallible<()> {
self.upcast::<GlobalScope>()
.structured_clone(cx, value, options, retval)
}
}
impl Window {
#[allow(unsafe_code)]
pub fn create_named_properties_object(
cx: JSContext,
proto: HandleObject,
object: MutableHandleObject,
) {
window_named_properties::create(cx, proto, object)
}
pub(crate) fn set_current_event(&self, event: Option<&Event>) -> Option<DomRoot<Event>> {
let current = self
.current_event
.borrow()
.as_ref()
.map(|e| DomRoot::from_ref(&**e));
*self.current_event.borrow_mut() = event.map(Dom::from_ref);
current
}
fn post_message_impl(
&self,
target_origin: &USVString,
source_origin: ImmutableOrigin,
source: &Window,
cx: JSContext,
message: HandleValue,
transfer: CustomAutoRooterGuard<Vec<*mut JSObject>>,
) -> ErrorResult {
let data = structuredclone::write(cx, message, Some(transfer))?;
let target_origin = match target_origin.0[..].as_ref() {
"*" => None,
"/" => Some(source_origin.clone()),
url => match ServoUrl::parse(url) {
Ok(url) => Some(url.origin().clone()),
Err(_) => return Err(Error::Syntax),
},
};
self.post_message(target_origin, source_origin, &source.window_proxy(), data);
Ok(())
}
pub fn paint_worklet(&self) -> DomRoot<Worklet> {
self.paint_worklet.or_init(|| self.new_paint_worklet())
}
pub fn has_document(&self) -> bool {
self.document.get().is_some()
}
pub fn cancel_all_tasks(&self) {
let mut ignore_flags = self.task_manager.task_cancellers.borrow_mut();
for task_source_name in TaskSourceName::all() {
let flag = ignore_flags.entry(*task_source_name).or_default();
let cancelled = std::mem::take(&mut *flag);
cancelled.store(true, Ordering::SeqCst);
}
}
pub fn cancel_all_tasks_from_source(&self, task_source_name: TaskSourceName) {
let mut ignore_flags = self.task_manager.task_cancellers.borrow_mut();
let flag = ignore_flags.entry(task_source_name).or_default();
let cancelled = std::mem::take(&mut *flag);
cancelled.store(true, Ordering::SeqCst);
}
pub fn clear_js_runtime(&self) {
self.upcast::<GlobalScope>()
.remove_web_messaging_and_dedicated_workers_infra();
if let Some(custom_elements) = self.custom_element_registry.get() {
custom_elements.teardown();
}
self.Gc();
self.current_state.set(WindowState::Zombie);
*self.js_runtime.borrow_mut() = None;
if let Some(proxy) = self.window_proxy.get() {
let pipeline_id = self.upcast::<GlobalScope>().pipeline_id();
if let Some(currently_active) = proxy.currently_active() {
if currently_active == pipeline_id {
self.window_proxy.set(None);
}
}
}
if let Some(performance) = self.performance.get() {
performance.clear_and_disable_performance_entry_buffer();
}
self.ignore_all_tasks();
}
pub fn scroll(&self, x_: f64, y_: f64, behavior: ScrollBehavior, can_gc: CanGc) {
let xfinite = if x_.is_finite() { x_ } else { 0.0f64 };
let yfinite = if y_.is_finite() { y_ } else { 0.0f64 };
let viewport = self.window_size.get().initial_viewport;
let scrolling_area = self.scrolling_area_query(None, can_gc);
let x = xfinite
.min(scrolling_area.width() as f64 - viewport.width as f64)
.max(0.0f64);
let y = yfinite
.min(scrolling_area.height() as f64 - viewport.height as f64)
.max(0.0f64);
if x == self.ScrollX() as f64 && y == self.ScrollY() as f64 {
return;
}
let x = x.to_f32().unwrap_or(0.0f32);
let y = y.to_f32().unwrap_or(0.0f32);
self.update_viewport_for_scroll(x, y);
self.perform_a_scroll(
x,
y,
self.upcast::<GlobalScope>().pipeline_id().root_scroll_id(),
behavior,
None,
can_gc,
);
}
pub fn perform_a_scroll(
&self,
x: f32,
y: f32,
scroll_id: ExternalScrollId,
_behavior: ScrollBehavior,
_element: Option<&Element>,
can_gc: CanGc,
) {
self.reflow(
ReflowGoal::UpdateScrollNode(ScrollState {
scroll_id,
scroll_offset: Vector2D::new(-x, -y),
}),
can_gc,
);
}
pub fn update_viewport_for_scroll(&self, x: f32, y: f32) {
let size = self.current_viewport.get().size;
let new_viewport = Rect::new(Point2D::new(Au::from_f32_px(x), Au::from_f32_px(y)), size);
self.current_viewport.set(new_viewport)
}
pub fn device_pixel_ratio(&self) -> Scale<f32, CSSPixel, DevicePixel> {
self.window_size.get().device_pixel_ratio
}
fn client_window(&self) -> (Size2D<u32, CSSPixel>, Point2D<i32, CSSPixel>) {
let timer_profile_chan = self.global().time_profiler_chan().clone();
let (send, recv) =
ProfiledIpc::channel::<DeviceIndependentIntRect>(timer_profile_chan).unwrap();
let _ = self
.compositor_api
.sender()
.send(webrender_traits::CrossProcessCompositorMessage::GetClientWindowRect(send));
let rect = recv.recv().unwrap_or_default().to_u32();
(
Size2D::new(rect.size().width, rect.size().height),
Point2D::new(rect.min.x as i32, rect.min.y as i32),
)
}
#[allow(unsafe_code)]
pub fn advance_animation_clock(&self, delta_ms: i32) {
let pipeline_id = self.upcast::<GlobalScope>().pipeline_id();
self.Document()
.advance_animation_timeline_for_testing(delta_ms as f64 / 1000.);
ScriptThread::handle_tick_all_animations_for_testing(pipeline_id);
}
#[allow(unsafe_code)]
fn force_reflow(
&self,
reflow_goal: ReflowGoal,
condition: Option<ReflowTriggerCondition>,
) -> bool {
self.Document().ensure_safe_to_run_script_or_layout();
let layout_blocked = self.layout_blocker.get().layout_blocked();
let pipeline_id = self.upcast::<GlobalScope>().pipeline_id();
if reflow_goal == ReflowGoal::UpdateTheRendering && layout_blocked {
debug!("Suppressing pre-load-event reflow pipeline {pipeline_id}");
return false;
}
if condition != Some(ReflowTriggerCondition::PaintPostponed) {
debug!(
"Invalidating layout cache due to reflow condition {:?}",
condition
);
self.layout_marker.borrow().set(false);
*self.layout_marker.borrow_mut() = Rc::new(Cell::new(true));
} else {
debug!("Not invalidating cached layout values for paint-only reflow.");
}
debug!("script: performing reflow for goal {reflow_goal:?}");
let marker = if self.need_emit_timeline_marker(TimelineMarkerType::Reflow) {
Some(TimelineMarker::start("Reflow".to_owned()))
} else {
None
};
if self.relayout_event {
debug_reflow_events(pipeline_id, &reflow_goal);
}
let document = self.Document();
let stylesheets_changed = document.flush_stylesheets_for_reflow();
let for_display = reflow_goal.needs_display();
if for_display {
document.flush_dirty_webgl_canvases();
}
let pending_restyles = document.drain_pending_restyles();
let dirty_root = document
.take_dirty_root()
.filter(|_| !stylesheets_changed)
.or_else(|| document.GetDocumentElement())
.map(|root| root.upcast::<Node>().to_trusted_node_address());
let reflow = ReflowRequest {
reflow_info: Reflow {
page_clip_rect: self.page_clip_rect.get(),
},
document: document.upcast::<Node>().to_trusted_node_address(),
dirty_root,
stylesheets_changed,
window_size: self.window_size.get(),
origin: self.origin().immutable().clone(),
reflow_goal,
dom_count: document.dom_count(),
pending_restyles,
animation_timeline_value: document.current_animation_timeline_value(),
animations: document.animations().sets.clone(),
theme: self.theme.get(),
};
let Some(results) = self.layout.borrow_mut().reflow(reflow) else {
return false;
};
debug!("script: layout complete");
if let Some(marker) = marker {
self.emit_timeline_marker(marker.end());
}
document.set_needs_paint(!for_display);
for image in results.pending_images {
let id = image.id;
let node = unsafe { from_untrusted_node_address(image.node) };
if let PendingImageState::Unrequested(ref url) = image.state {
fetch_image_for_layout(url.clone(), &node, id, self.image_cache.clone());
}
let mut images = self.pending_layout_images.borrow_mut();
let nodes = images.entry(id).or_default();
if !nodes.iter().any(|n| std::ptr::eq(&**n, &*node)) {
let (responder, responder_listener) =
ProfiledIpc::channel(self.global().time_profiler_chan().clone()).unwrap();
let image_cache_chan = self.image_cache_chan.clone();
ROUTER.add_typed_route(
responder_listener.to_ipc_receiver(),
Box::new(move |message| {
let _ = image_cache_chan.send((pipeline_id, message.unwrap()));
}),
);
self.image_cache
.add_listener(id, ImageResponder::new(responder, id));
nodes.push(Dom::from_ref(&*node));
}
}
let size_messages = self
.Document()
.iframes_mut()
.handle_new_iframe_sizes_after_layout(results.iframe_sizes, self.device_pixel_ratio());
if !size_messages.is_empty() {
self.send_to_constellation(ScriptMsg::IFrameSizes(size_messages));
}
document.update_animations_post_reflow();
self.update_constellation_epoch();
true
}
pub(crate) fn reflow(&self, reflow_goal: ReflowGoal, can_gc: CanGc) -> bool {
let pending_web_fonts = self.layout.borrow().waiting_for_web_fonts_to_load();
self.Document().ensure_safe_to_run_script_or_layout();
let mut issued_reflow = false;
let condition = self.Document().needs_reflow();
let updating_the_rendering = reflow_goal == ReflowGoal::UpdateTheRendering;
let for_display = reflow_goal.needs_display();
if !updating_the_rendering || condition.is_some() {
debug!("Reflowing document ({:?})", self.pipeline_id());
issued_reflow = self.force_reflow(reflow_goal, condition);
if issued_reflow {
let condition = self.Document().needs_reflow();
let display_is_pending = condition == Some(ReflowTriggerCondition::PaintPostponed);
assert!(
condition.is_none() || (display_is_pending && !for_display),
"Needed reflow after reflow: {:?}",
condition
);
}
} else {
debug!(
"Document ({:?}) doesn't need reflow - skipping it (goal {reflow_goal:?})",
self.pipeline_id()
);
}
let document = self.Document();
let font_face_set = document.Fonts(can_gc);
let is_ready_state_complete = document.ReadyState() == DocumentReadyState::Complete;
if !pending_web_fonts && is_ready_state_complete {
font_face_set.fulfill_ready_promise_if_needed();
}
if self.prepare_for_screenshot && updating_the_rendering {
let html_element = document.GetDocumentElement();
let reftest_wait = html_element.is_some_and(|elem| {
elem.has_class(&atom!("reftest-wait"), CaseSensitivity::CaseSensitive) ||
elem.has_class(&Atom::from("test-wait"), CaseSensitivity::CaseSensitive)
});
let has_sent_idle_message = self.has_sent_idle_message.get();
let pending_images = !self.pending_layout_images.borrow().is_empty();
if !has_sent_idle_message &&
is_ready_state_complete &&
!reftest_wait &&
!pending_images &&
!pending_web_fonts
{
debug!(
"{:?}: Sending DocumentState::Idle to Constellation",
self.pipeline_id()
);
let event = ScriptMsg::SetDocumentState(DocumentState::Idle);
self.send_to_constellation(event);
self.has_sent_idle_message.set(true);
}
}
issued_reflow
}
pub(crate) fn reflow_if_reflow_timer_expired(&self, can_gc: CanGc) {
if !matches!(
self.layout_blocker.get(),
LayoutBlocker::Parsing(instant) if instant + INITIAL_REFLOW_DELAY < Instant::now()
) {
return;
}
self.allow_layout_if_necessary(can_gc);
}
pub(crate) fn prevent_layout_until_load_event(&self) {
if !matches!(self.layout_blocker.get(), LayoutBlocker::WaitingForParse) {
return;
}
self.layout_blocker
.set(LayoutBlocker::Parsing(Instant::now()));
}
pub(crate) fn allow_layout_if_necessary(&self, can_gc: CanGc) {
if matches!(
self.layout_blocker.get(),
LayoutBlocker::FiredLoadEventOrParsingTimerExpired
) {
return;
}
self.layout_blocker
.set(LayoutBlocker::FiredLoadEventOrParsingTimerExpired);
self.Document().set_needs_paint(true);
self.reflow(ReflowGoal::UpdateTheRendering, can_gc);
}
pub(crate) fn layout_blocked(&self) -> bool {
self.layout_blocker.get().layout_blocked()
}
pub(crate) fn update_constellation_epoch(&self) {
if !self.prepare_for_screenshot {
return;
}
let epoch = self.layout.borrow().current_epoch();
debug!(
"{:?}: Updating constellation epoch: {epoch:?}",
self.pipeline_id()
);
let (sender, receiver) = ipc::channel().expect("Failed to create IPC channel!");
let event = ScriptMsg::SetLayoutEpoch(epoch, sender);
self.send_to_constellation(event);
receiver.recv().unwrap();
}
pub fn layout_reflow(&self, query_msg: QueryMsg, can_gc: CanGc) -> bool {
self.reflow(ReflowGoal::LayoutQuery(query_msg), can_gc)
}
pub fn resolved_font_style_query(
&self,
node: &Node,
value: String,
can_gc: CanGc,
) -> Option<ServoArc<Font>> {
if !self.layout_reflow(QueryMsg::ResolvedFontStyleQuery, can_gc) {
return None;
}
let document = self.Document();
let animations = document.animations().sets.clone();
self.layout.borrow().query_resolved_font_style(
node.to_trusted_node_address(),
&value,
animations,
document.current_animation_timeline_value(),
)
}
pub fn content_box_query(&self, node: &Node, can_gc: CanGc) -> Option<UntypedRect<Au>> {
if !self.layout_reflow(QueryMsg::ContentBox, can_gc) {
return None;
}
self.layout.borrow().query_content_box(node.to_opaque())
}
pub fn content_boxes_query(&self, node: &Node, can_gc: CanGc) -> Vec<UntypedRect<Au>> {
if !self.layout_reflow(QueryMsg::ContentBoxes, can_gc) {
return vec![];
}
self.layout.borrow().query_content_boxes(node.to_opaque())
}
pub fn client_rect_query(&self, node: &Node, can_gc: CanGc) -> UntypedRect<i32> {
if !self.layout_reflow(QueryMsg::ClientRectQuery, can_gc) {
return Rect::zero();
}
self.layout.borrow().query_client_rect(node.to_opaque())
}
pub fn scrolling_area_query(&self, node: Option<&Node>, can_gc: CanGc) -> UntypedRect<i32> {
let opaque = node.map(|node| node.to_opaque());
if !self.layout_reflow(QueryMsg::ScrollingAreaQuery, can_gc) {
return Rect::zero();
}
self.layout.borrow().query_scrolling_area(opaque)
}
pub fn scroll_offset_query(&self, node: &Node) -> Vector2D<f32, LayoutPixel> {
if let Some(scroll_offset) = self.scroll_offsets.borrow().get(&node.to_opaque()) {
return *scroll_offset;
}
Vector2D::new(0.0, 0.0)
}
pub fn scroll_node(
&self,
node: &Node,
x_: f64,
y_: f64,
behavior: ScrollBehavior,
can_gc: CanGc,
) {
self.scroll_offsets
.borrow_mut()
.insert(node.to_opaque(), Vector2D::new(x_ as f32, y_ as f32));
let scroll_id = ExternalScrollId(
combine_id_with_fragment_type(node.to_opaque().id(), FragmentType::FragmentBody),
self.pipeline_id().into(),
);
self.perform_a_scroll(
x_.to_f32().unwrap_or(0.0f32),
y_.to_f32().unwrap_or(0.0f32),
scroll_id,
behavior,
None,
can_gc,
);
}
pub fn resolved_style_query(
&self,
element: TrustedNodeAddress,
pseudo: Option<PseudoElement>,
property: PropertyId,
can_gc: CanGc,
) -> DOMString {
if !self.layout_reflow(QueryMsg::ResolvedStyleQuery, can_gc) {
return DOMString::new();
}
let document = self.Document();
let animations = document.animations().sets.clone();
DOMString::from(self.layout.borrow().query_resolved_style(
element,
pseudo,
property,
animations,
document.current_animation_timeline_value(),
))
}
pub(crate) fn get_iframe_size_if_known(
&self,
browsing_context_id: BrowsingContextId,
can_gc: CanGc,
) -> Option<Size2D<f32, CSSPixel>> {
self.layout_reflow(QueryMsg::InnerWindowDimensionsQuery, can_gc);
self.Document()
.iframes()
.get(browsing_context_id)
.and_then(|iframe| iframe.size)
}
#[allow(unsafe_code)]
pub fn offset_parent_query(
&self,
node: &Node,
can_gc: CanGc,
) -> (Option<DomRoot<Element>>, UntypedRect<Au>) {
if !self.layout_reflow(QueryMsg::OffsetParentQuery, can_gc) {
return (None, Rect::zero());
}
let response = self.layout.borrow().query_offset_parent(node.to_opaque());
let element = response.node_address.and_then(|parent_node_address| {
let node = unsafe { from_untrusted_node_address(parent_node_address) };
DomRoot::downcast(node)
});
(element, response.rect)
}
pub fn text_index_query(
&self,
node: &Node,
point_in_node: UntypedPoint2D<f32>,
can_gc: CanGc,
) -> Option<usize> {
if !self.layout_reflow(QueryMsg::TextIndexQuery, can_gc) {
return None;
}
self.layout
.borrow()
.query_text_indext(node.to_opaque(), point_in_node)
}
#[allow(unsafe_code)]
pub fn init_window_proxy(&self, window_proxy: &WindowProxy) {
assert!(self.window_proxy.get().is_none());
self.window_proxy.set(Some(window_proxy));
}
#[allow(unsafe_code)]
pub fn init_document(&self, document: &Document) {
assert!(self.document.get().is_none());
assert!(document.window() == self);
self.document.set(Some(document));
if self.unminify_css {
*self.unminified_css_dir.borrow_mut() = Some(unminified_path("unminified-css"));
}
}
pub fn load_url(
&self,
history_handling: NavigationHistoryBehavior,
force_reload: bool,
load_data: LoadData,
can_gc: CanGc,
) {
let doc = self.Document();
if !force_reload &&
load_data.url.as_url()[..Position::AfterQuery] ==
doc.url().as_url()[..Position::AfterQuery]
{
if let Some(fragment) = load_data.url.fragment() {
self.send_to_constellation(ScriptMsg::NavigatedToFragment(
load_data.url.clone(),
history_handling,
));
doc.check_and_scroll_fragment(fragment, can_gc);
let this = Trusted::new(self);
let old_url = doc.url().into_string();
let new_url = load_data.url.clone().into_string();
let task = task!(hashchange_event: move || {
let this = this.root();
let event = HashChangeEvent::new(
&this,
atom!("hashchange"),
false,
false,
old_url,
new_url,
CanGc::note());
event.upcast::<Event>().fire(this.upcast::<EventTarget>(), CanGc::note());
});
let _ = self.script_chan.send(CommonScriptMsg::Task(
ScriptThreadEventCategory::DomEvent,
Box::new(
self.task_manager
.task_canceller(TaskSourceName::DOMManipulation)
.wrap_task(task),
),
Some(self.pipeline_id()),
TaskSourceName::DOMManipulation,
));
doc.set_url(load_data.url.clone());
return;
}
}
let pipeline_id = self.upcast::<GlobalScope>().pipeline_id();
let window_proxy = self.window_proxy();
if let Some(active) = window_proxy.currently_active() {
if pipeline_id == active && doc.is_prompting_or_unloading() {
return;
}
}
if doc.prompt_to_unload(false, can_gc) {
let window_proxy = self.window_proxy();
if window_proxy.parent().is_some() {
window_proxy.start_delaying_load_events_mode();
}
ScriptThread::navigate(
window_proxy.browsing_context_id(),
pipeline_id,
load_data,
history_handling,
);
};
}
pub fn set_window_size(&self, size: WindowSizeData) {
self.window_size.set(size);
}
pub fn window_size(&self) -> WindowSizeData {
self.window_size.get()
}
pub(crate) fn handle_theme_change(&self, new_theme: Theme) {
let new_theme = match new_theme {
Theme::Light => PrefersColorScheme::Light,
Theme::Dark => PrefersColorScheme::Dark,
};
if self.theme.get() == new_theme {
return;
}
self.theme.set(new_theme);
self.Document().set_needs_paint(true);
}
pub fn get_url(&self) -> ServoUrl {
self.Document().url()
}
pub fn windowproxy_handler(&self) -> &'static WindowProxyHandler {
self.dom_static.windowproxy_handler
}
pub fn add_resize_event(&self, event: WindowSizeData, event_type: WindowSizeType) {
*self.unhandled_resize_event.borrow_mut() = Some((event, event_type))
}
pub fn take_unhandled_resize_event(&self) -> Option<(WindowSizeData, WindowSizeType)> {
self.unhandled_resize_event.borrow_mut().take()
}
pub fn set_page_clip_rect_with_new_viewport(&self, viewport: UntypedRect<f32>) -> bool {
let rect = f32_rect_to_au_rect(viewport);
self.current_viewport.set(rect);
static VIEWPORT_EXPANSION: f32 = 2.0; let proposed_clip_rect = 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 != MaxRect::max_rect();
if had_clip_rect && !should_move_clip_rect(clip_rect, viewport) {
return false;
}
self.page_clip_rect.set(proposed_clip_rect);
self.Document().set_needs_paint(true);
had_clip_rect
}
pub fn suspend(&self) {
self.upcast::<GlobalScope>().suspend();
if self.window_proxy().currently_active() == Some(self.global().pipeline_id()) {
self.window_proxy().unset_currently_active();
}
self.Gc();
}
pub fn resume(&self) {
self.upcast::<GlobalScope>().resume();
self.window_proxy().set_currently_active(self);
self.Document().title_changed();
}
pub fn need_emit_timeline_marker(&self, timeline_type: TimelineMarkerType) -> bool {
let markers = self.devtools_markers.borrow();
markers.contains(&timeline_type)
}
pub fn emit_timeline_marker(&self, marker: TimelineMarker) {
let sender = self.devtools_marker_sender.borrow();
let sender = sender.as_ref().expect("There is no marker sender");
sender.send(Some(marker)).unwrap();
}
pub fn set_devtools_timeline_markers(
&self,
markers: Vec<TimelineMarkerType>,
reply: IpcSender<Option<TimelineMarker>>,
) {
*self.devtools_marker_sender.borrow_mut() = Some(reply);
self.devtools_markers.borrow_mut().extend(markers);
}
pub fn drop_devtools_timeline_markers(&self, markers: Vec<TimelineMarkerType>) {
let mut devtools_markers = self.devtools_markers.borrow_mut();
for marker in markers {
devtools_markers.remove(&marker);
}
if devtools_markers.is_empty() {
*self.devtools_marker_sender.borrow_mut() = None;
}
}
pub fn set_webdriver_script_chan(&self, chan: Option<IpcSender<WebDriverJSResult>>) {
*self.webdriver_script_chan.borrow_mut() = chan;
}
pub fn is_alive(&self) -> bool {
self.current_state.get() == WindowState::Alive
}
pub fn is_top_level(&self) -> bool {
self.parent_info.is_none()
}
pub(crate) fn run_the_resize_steps(&self, can_gc: CanGc) -> bool {
let Some((new_size, size_type)) = self.take_unhandled_resize_event() else {
return false;
};
if self.window_size() == new_size {
return false;
}
let _realm = enter_realm(self);
debug!(
"Resizing Window for pipeline {:?} from {:?} to {new_size:?}",
self.pipeline_id(),
self.window_size(),
);
self.set_window_size(new_size);
if size_type == WindowSizeType::Resize {
let uievent = UIEvent::new(
self,
DOMString::from("resize"),
EventBubbles::DoesNotBubble,
EventCancelable::NotCancelable,
Some(self),
0i32,
can_gc,
);
uievent.upcast::<Event>().fire(self.upcast(), can_gc);
}
self.Document().set_needs_paint(true);
true
}
pub fn evaluate_media_queries_and_report_changes(&self, can_gc: CanGc) {
let _realm = enter_realm(self);
rooted_vec!(let mut mql_list);
self.media_query_lists.for_each(|mql| {
if let MediaQueryListMatchState::Changed = mql.evaluate_changes() {
mql_list.push(Dom::from_ref(&*mql));
}
});
for mql in mql_list.iter() {
let event = MediaQueryListEvent::new(
&mql.global(),
atom!("change"),
false,
false,
mql.Media(),
mql.Matches(),
can_gc,
);
event
.upcast::<Event>()
.fire(mql.upcast::<EventTarget>(), can_gc);
}
}
pub fn set_throttled(&self, throttled: bool) {
self.throttled.set(throttled);
if throttled {
self.upcast::<GlobalScope>().slow_down_timers();
} else {
self.upcast::<GlobalScope>().speed_up_timers();
}
}
pub fn throttled(&self) -> bool {
self.throttled.get()
}
pub fn unminified_css_dir(&self) -> Option<String> {
self.unminified_css_dir.borrow().clone()
}
pub fn local_script_source(&self) -> &Option<String> {
&self.local_script_source
}
pub fn set_navigation_start(&self) {
self.navigation_start.set(CrossProcessInstant::now());
}
pub fn send_to_embedder(&self, msg: EmbedderMsg) {
self.send_to_constellation(ScriptMsg::ForwardToEmbedder(msg));
}
pub fn send_to_constellation(&self, msg: ScriptMsg) {
self.upcast::<GlobalScope>()
.script_to_constellation_chan()
.send(msg)
.unwrap();
}
pub fn webrender_document(&self) -> DocumentId {
self.webrender_document
}
#[cfg(feature = "webxr")]
pub fn in_immersive_xr_session(&self) -> bool {
self.navigator
.get()
.as_ref()
.and_then(|nav| nav.xr())
.is_some_and(|xr| xr.pending_or_active_session())
}
#[cfg(not(feature = "webxr"))]
pub fn in_immersive_xr_session(&self) -> bool {
false
}
}
impl Window {
#[allow(unsafe_code)]
#[allow(clippy::too_many_arguments)]
pub fn new(
runtime: Rc<Runtime>,
script_chan: MainThreadScriptChan,
task_manager: TaskManager,
layout: Box<dyn Layout>,
image_cache_chan: Sender<ImageCacheMsg>,
image_cache: Arc<dyn ImageCache>,
resource_threads: ResourceThreads,
bluetooth_thread: IpcSender<BluetoothRequest>,
mem_profiler_chan: MemProfilerChan,
time_profiler_chan: TimeProfilerChan,
devtools_chan: Option<IpcSender<ScriptToDevtoolsControlMsg>>,
constellation_chan: ScriptToConstellationChan,
control_chan: IpcSender<ConstellationControlMsg>,
scheduler_chan: IpcSender<TimerSchedulerMsg>,
pipelineid: PipelineId,
parent_info: Option<PipelineId>,
window_size: WindowSizeData,
origin: MutableOrigin,
creator_url: ServoUrl,
navigation_start: CrossProcessInstant,
webgl_chan: Option<WebGLChan>,
#[cfg(feature = "webxr")] webxr_registry: Option<webxr_api::Registry>,
microtask_queue: Rc<MicrotaskQueue>,
webrender_document: DocumentId,
compositor_api: CrossProcessCompositorApi,
relayout_event: bool,
prepare_for_screenshot: bool,
unminify_js: bool,
unminify_css: bool,
local_script_source: Option<String>,
userscripts_path: Option<String>,
is_headless: bool,
replace_surrogates: bool,
user_agent: Cow<'static, str>,
player_context: WindowGLContext,
#[cfg(feature = "webgpu")] gpu_id_hub: Arc<IdentityHub>,
inherited_secure_context: Option<bool>,
) -> DomRoot<Self> {
let error_reporter = CSSErrorReporter {
pipelineid,
script_chan: Arc::new(Mutex::new(control_chan)),
};
let initial_viewport = f32_rect_to_au_rect(UntypedRect::new(
Point2D::zero(),
window_size.initial_viewport.to_untyped(),
));
let win = Box::new(Self {
globalscope: GlobalScope::new_inherited(
pipelineid,
devtools_chan,
mem_profiler_chan,
time_profiler_chan,
constellation_chan,
scheduler_chan,
resource_threads,
origin,
Some(creator_url),
microtask_queue,
is_headless,
user_agent,
#[cfg(feature = "webgpu")]
gpu_id_hub,
inherited_secure_context,
unminify_js,
),
script_chan,
task_manager,
layout: RefCell::new(layout),
image_cache_chan,
image_cache,
navigator: Default::default(),
location: Default::default(),
history: Default::default(),
custom_element_registry: Default::default(),
window_proxy: Default::default(),
document: Default::default(),
performance: Default::default(),
navigation_start: Cell::new(navigation_start),
screen: Default::default(),
session_storage: Default::default(),
local_storage: Default::default(),
status: DomRefCell::new(DOMString::new()),
parent_info,
dom_static: GlobalStaticData::new(),
js_runtime: DomRefCell::new(Some(runtime.clone())),
bluetooth_thread,
bluetooth_extra_permission_data: BluetoothExtraPermissionData::new(),
page_clip_rect: Cell::new(MaxRect::max_rect()),
unhandled_resize_event: Default::default(),
window_size: Cell::new(window_size),
current_viewport: Cell::new(initial_viewport.to_untyped()),
layout_blocker: Cell::new(LayoutBlocker::WaitingForParse),
current_state: Cell::new(WindowState::Alive),
devtools_marker_sender: Default::default(),
devtools_markers: Default::default(),
webdriver_script_chan: Default::default(),
error_reporter,
scroll_offsets: Default::default(),
media_query_lists: DOMTracker::new(),
test_runner: Default::default(),
webgl_chan,
#[cfg(feature = "webxr")]
webxr_registry,
pending_layout_images: Default::default(),
unminified_css_dir: Default::default(),
local_script_source,
test_worklet: Default::default(),
paint_worklet: Default::default(),
webrender_document,
exists_mut_observer: Cell::new(false),
compositor_api,
has_sent_idle_message: Cell::new(false),
relayout_event,
prepare_for_screenshot,
unminify_css,
userscripts_path,
replace_surrogates,
player_context,
throttled: Cell::new(false),
layout_marker: DomRefCell::new(Rc::new(Cell::new(true))),
current_event: DomRefCell::new(None),
theme: Cell::new(PrefersColorScheme::Light),
});
unsafe { WindowBinding::Wrap(JSContext::from_ptr(runtime.cx()), win) }
}
pub fn pipeline_id(&self) -> PipelineId {
self.upcast::<GlobalScope>().pipeline_id()
}
pub fn cache_layout_value<T>(&self, value: T) -> LayoutValue<T>
where
T: Copy + MallocSizeOf,
{
LayoutValue::new(self.layout_marker.borrow().clone(), value)
}
}
#[derive(MallocSizeOf)]
pub struct LayoutValue<T: MallocSizeOf> {
#[ignore_malloc_size_of = "Rc is hard"]
is_valid: Rc<Cell<bool>>,
value: T,
}
#[allow(unsafe_code)]
unsafe impl<T: JSTraceable + MallocSizeOf> JSTraceable for LayoutValue<T> {
unsafe fn trace(&self, trc: *mut js::jsapi::JSTracer) {
self.value.trace(trc)
}
}
impl<T: Copy + MallocSizeOf> LayoutValue<T> {
fn new(marker: Rc<Cell<bool>>, value: T) -> Self {
LayoutValue {
is_valid: marker,
value,
}
}
pub fn get(&self) -> Result<T, ()> {
if self.is_valid.get() {
return Ok(self.value);
}
Err(())
}
}
fn should_move_clip_rect(clip_rect: UntypedRect<Au>, new_viewport: UntypedRect<f32>) -> bool {
let clip_rect = UntypedRect::new(
Point2D::new(
clip_rect.origin.x.to_f32_px(),
clip_rect.origin.y.to_f32_px(),
),
Size2D::new(
clip_rect.size.width.to_f32_px(),
clip_rect.size.height.to_f32_px(),
),
);
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
}
fn debug_reflow_events(id: PipelineId, reflow_goal: &ReflowGoal) {
let goal_string = match *reflow_goal {
ReflowGoal::UpdateTheRendering => "\tFull",
ReflowGoal::UpdateScrollNode(_) => "\tUpdateScrollNode",
ReflowGoal::LayoutQuery(ref query_msg) => match *query_msg {
QueryMsg::ContentBox => "\tContentBoxQuery",
QueryMsg::ContentBoxes => "\tContentBoxesQuery",
QueryMsg::NodesFromPointQuery => "\tNodesFromPointQuery",
QueryMsg::ClientRectQuery => "\tClientRectQuery",
QueryMsg::ScrollingAreaQuery => "\tNodeScrollGeometryQuery",
QueryMsg::ResolvedStyleQuery => "\tResolvedStyleQuery",
QueryMsg::ResolvedFontStyleQuery => "\nResolvedFontStyleQuery",
QueryMsg::OffsetParentQuery => "\tOffsetParentQuery",
QueryMsg::StyleQuery => "\tStyleQuery",
QueryMsg::TextIndexQuery => "\tTextIndexQuery",
QueryMsg::ElementInnerOuterTextQuery => "\tElementInnerOuterTextQuery",
QueryMsg::InnerWindowDimensionsQuery => "\tInnerWindowDimensionsQuery",
},
};
println!("**** pipeline={id}\t{goal_string}");
}
impl Window {
pub fn post_message(
&self,
target_origin: Option<ImmutableOrigin>,
source_origin: ImmutableOrigin,
source: &WindowProxy,
data: StructuredSerializedData,
) {
let this = Trusted::new(self);
let source = Trusted::new(source);
let task = task!(post_serialised_message: move || {
let this = this.root();
let source = source.root();
let document = this.Document();
if let Some(ref target_origin) = target_origin {
if !target_origin.same_origin(document.origin()) {
return;
}
}
let cx = this.get_cx();
let obj = this.reflector().get_jsobject();
let _ac = JSAutoRealm::new(*cx, obj.get());
rooted!(in(*cx) let mut message_clone = UndefinedValue());
if let Ok(ports) = structuredclone::read(this.upcast(), data, message_clone.handle_mut()) {
MessageEvent::dispatch_jsval(
this.upcast(),
this.upcast(),
message_clone.handle(),
Some(&source_origin.ascii_serialization()),
Some(&*source),
ports,
CanGc::note()
);
} else {
MessageEvent::dispatch_error(
this.upcast(),
this.upcast(),
CanGc::note()
);
}
});
let _ = self.script_chan.send(CommonScriptMsg::Task(
ScriptThreadEventCategory::DomEvent,
Box::new(
self.task_manager
.task_canceller(TaskSourceName::DOMManipulation)
.wrap_task(task),
),
Some(self.pipeline_id()),
TaskSourceName::DOMManipulation,
));
}
}
#[derive(Clone, MallocSizeOf)]
pub struct CSSErrorReporter {
pub pipelineid: PipelineId,
#[ignore_malloc_size_of = "Arc is defined in libstd"]
pub script_chan: Arc<Mutex<IpcSender<ConstellationControlMsg>>>,
}
unsafe_no_jsmanaged_fields!(CSSErrorReporter);
impl ParseErrorReporter for CSSErrorReporter {
fn report_error(
&self,
url: &UrlExtraData,
location: SourceLocation,
error: ContextualParseError,
) {
if log_enabled!(log::Level::Info) {
info!(
"Url:\t{}\n{}:{} {}",
url.0.as_str(),
location.line,
location.column,
error
)
}
let _ = self
.script_chan
.lock()
.unwrap()
.send(ConstellationControlMsg::ReportCSSError(
self.pipelineid,
url.0.to_string(),
location.line,
location.column,
error.to_string(),
));
}
}
fn is_named_element_with_name_attribute(elem: &Element) -> bool {
let type_ = match elem.upcast::<Node>().type_id() {
NodeTypeId::Element(ElementTypeId::HTMLElement(type_)) => type_,
_ => return false,
};
matches!(
type_,
HTMLElementTypeId::HTMLEmbedElement |
HTMLElementTypeId::HTMLFormElement |
HTMLElementTypeId::HTMLImageElement |
HTMLElementTypeId::HTMLObjectElement
)
}
fn is_named_element_with_id_attribute(elem: &Element) -> bool {
elem.is_html_element()
}