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ac4614d6ce
We use Size2D and Point2D across compositing, constellation and script, losing the type of pixels we use (DevicePixel, DeviceIndepententPixel or CSSPixel) along the way, which might lead to bugs like window.outerHeight not taking into account the page zoom (using DeviceIndepententPixel instead of CSSPixel).
210 lines
9.1 KiB
Rust
210 lines
9.1 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use AnimationState;
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use CompositorEvent;
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use DocumentState;
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use IFrameLoadInfo;
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use IFrameLoadInfoWithData;
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use LayoutControlMsg;
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use LoadData;
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use WorkerGlobalScopeInit;
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use WorkerScriptLoadOrigin;
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use canvas_traits::canvas::CanvasMsg;
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use devtools_traits::{ScriptToDevtoolsControlMsg, WorkerId};
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use euclid::{Size2D, TypedPoint2D, TypedSize2D};
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use gfx_traits::Epoch;
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use ipc_channel::ipc::{IpcReceiver, IpcSender};
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use msg::constellation_msg::{BrowsingContextId, PipelineId, TraversalDirection};
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use msg::constellation_msg::{Key, KeyModifiers, KeyState};
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use net_traits::CoreResourceMsg;
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use net_traits::request::RequestInit;
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use net_traits::storage_thread::StorageType;
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use servo_url::ImmutableOrigin;
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use servo_url::ServoUrl;
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use style_traits::{DevicePixel, CSSPixel};
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use style_traits::cursor::CursorKind;
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use style_traits::viewport::ViewportConstraints;
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/// Messages from the layout to the constellation.
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#[derive(Deserialize, Serialize)]
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pub enum LayoutMsg {
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/// Indicates whether this pipeline is currently running animations.
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ChangeRunningAnimationsState(PipelineId, AnimationState),
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/// Inform the constellation of the size of the iframe's viewport.
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IFrameSizes(Vec<(BrowsingContextId, TypedSize2D<f32, CSSPixel>)>),
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/// Requests that the constellation inform the compositor that it needs to record
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/// the time when the frame with the given ID (epoch) is painted.
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PendingPaintMetric(PipelineId, Epoch),
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/// Requests that the constellation inform the compositor of the a cursor change.
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SetCursor(CursorKind),
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/// Notifies the constellation that the viewport has been constrained in some manner
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ViewportConstrained(PipelineId, ViewportConstraints),
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}
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/// Whether a DOM event was prevented by web content
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#[derive(Deserialize, Serialize)]
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pub enum EventResult {
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/// Allowed by web content
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DefaultAllowed,
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/// Prevented by web content
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DefaultPrevented,
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}
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/// A log entry reported to the constellation
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/// We don't report all log entries, just serious ones.
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/// We need a separate type for this because `LogLevel` isn't serializable.
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub enum LogEntry {
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/// Panic, with a reason and backtrace
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Panic(String, String),
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/// Error, with a reason
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Error(String),
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/// warning, with a reason
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Warn(String),
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}
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/// Messages from the script to the constellation.
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#[derive(Deserialize, Serialize)]
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pub enum ScriptMsg {
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/// Requests are sent to constellation and fetches are checked manually
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/// for cross-origin loads
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InitiateNavigateRequest(RequestInit, /* cancellation_chan */ IpcReceiver<()>),
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/// Broadcast a storage event to every same-origin pipeline.
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/// The strings are key, old value and new value.
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BroadcastStorageEvent(StorageType, ServoUrl, Option<String>, Option<String>, Option<String>),
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/// Indicates whether this pipeline is currently running animations.
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ChangeRunningAnimationsState(AnimationState),
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/// Requests that a new 2D canvas thread be created. (This is done in the constellation because
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/// 2D canvases may use the GPU and we don't want to give untrusted content access to the GPU.)
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CreateCanvasPaintThread(Size2D<i32>, IpcSender<IpcSender<CanvasMsg>>),
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/// Notifies the constellation that this frame has received focus.
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Focus,
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/// Forward an event that was sent to the parent window.
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ForwardEvent(PipelineId, CompositorEvent),
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/// Requests that the constellation retrieve the current contents of the clipboard
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GetClipboardContents(IpcSender<String>),
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/// Get the browsing context id for a given pipeline.
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GetBrowsingContextId(PipelineId, IpcSender<Option<BrowsingContextId>>),
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/// Get the parent info for a given pipeline.
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GetParentInfo(PipelineId, IpcSender<Option<PipelineId>>),
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/// <head> tag finished parsing
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HeadParsed,
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/// All pending loads are complete, and the `load` event for this pipeline
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/// has been dispatched.
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LoadComplete,
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/// A new load has been requested, with an option to replace the current entry once loaded
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/// instead of adding a new entry.
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LoadUrl(LoadData, bool),
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/// Abort loading after sending a LoadUrl message.
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AbortLoadUrl,
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/// Post a message to the currently active window of a given browsing context.
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PostMessage(BrowsingContextId, Option<ImmutableOrigin>, Vec<u8>),
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/// HTMLIFrameElement Forward or Back traversal.
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TraverseHistory(TraversalDirection),
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/// Gets the length of the joint session history from the constellation.
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JointSessionHistoryLength(IpcSender<u32>),
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/// Favicon detected
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NewFavicon(ServoUrl),
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/// Status message to be displayed in the chrome, eg. a link URL on mouseover.
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NodeStatus(Option<String>),
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/// Notification that this iframe should be removed.
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/// Returns a list of pipelines which were closed.
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RemoveIFrame(BrowsingContextId, IpcSender<Vec<PipelineId>>),
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/// Change pipeline visibility
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SetVisible(bool),
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/// Notifies constellation that an iframe's visibility has been changed.
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VisibilityChangeComplete(bool),
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/// A load has been requested in an IFrame.
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ScriptLoadedURLInIFrame(IFrameLoadInfoWithData),
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/// A load of the initial `about:blank` has been completed in an IFrame.
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ScriptNewIFrame(IFrameLoadInfo, IpcSender<LayoutControlMsg>),
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/// Requests that the constellation set the contents of the clipboard
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SetClipboardContents(String),
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/// Mark a new document as active
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ActivateDocument,
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/// Set the document state for a pipeline (used by screenshot / reftests)
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SetDocumentState(DocumentState),
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/// Update the pipeline Url, which can change after redirections.
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SetFinalUrl(ServoUrl),
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/// Check if an alert dialog box should be presented
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Alert(String, IpcSender<bool>),
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/// Set title of current page
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/// <https://html.spec.whatwg.org/multipage/#document.title>
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SetTitle(Option<String>),
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/// Send a key event
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SendKeyEvent(Option<char>, Key, KeyState, KeyModifiers),
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/// Get Window Informations size and position
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GetClientWindow(IpcSender<(TypedSize2D<u32, DevicePixel>, TypedPoint2D<i32, DevicePixel>)>),
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/// Move the window to a point
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MoveTo(TypedPoint2D<i32, DevicePixel>),
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/// Resize the window to size
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ResizeTo(TypedSize2D<u32, DevicePixel>),
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/// Script has handled a touch event, and either prevented or allowed default actions.
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TouchEventProcessed(EventResult),
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/// A log entry, with the top-level browsing context id and thread name
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LogEntry(Option<String>, LogEntry),
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/// Notifies the constellation that this pipeline has exited.
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PipelineExited,
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/// Send messages from postMessage calls from serviceworker
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/// to constellation for storing in service worker manager
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ForwardDOMMessage(DOMMessage, ServoUrl),
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/// Store the data required to activate a service worker for the given scope
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RegisterServiceWorker(ScopeThings, ServoUrl),
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/// Enter or exit fullscreen
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SetFullscreenState(bool),
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/// Get the screen size (pixel)
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GetScreenSize(IpcSender<(TypedSize2D<u32, DevicePixel>)>),
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/// Get the available screen size (pixel)
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GetScreenAvailSize(IpcSender<(TypedSize2D<u32, DevicePixel>)>),
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/// Requests that the compositor shut down.
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Exit,
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}
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/// Entities required to spawn service workers
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#[derive(Clone, Deserialize, Serialize)]
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pub struct ScopeThings {
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/// script resource url
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pub script_url: ServoUrl,
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/// network load origin of the resource
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pub worker_load_origin: WorkerScriptLoadOrigin,
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/// base resources required to create worker global scopes
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pub init: WorkerGlobalScopeInit,
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/// the port to receive devtools message from
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pub devtools_chan: Option<IpcSender<ScriptToDevtoolsControlMsg>>,
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/// service worker id
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pub worker_id: WorkerId,
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}
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/// Message that gets passed to service worker scope on postMessage
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct DOMMessage(pub Vec<u8>);
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/// Channels to allow service worker manager to communicate with constellation and resource thread
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pub struct SWManagerSenders {
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/// sender for communicating with constellation
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pub swmanager_sender: IpcSender<SWManagerMsg>,
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/// sender for communicating with resource thread
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pub resource_sender: IpcSender<CoreResourceMsg>,
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}
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/// Messages sent to Service Worker Manager thread
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#[derive(Deserialize, Serialize)]
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pub enum ServiceWorkerMsg {
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/// Message to register the service worker
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RegisterServiceWorker(ScopeThings, ServoUrl),
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/// Timeout message sent by active service workers
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Timeout(ServoUrl),
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/// Message sent by constellation to forward to a running service worker
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ForwardDOMMessage(DOMMessage, ServoUrl),
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/// Exit the service worker manager
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Exit,
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}
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/// Messages outgoing from the Service Worker Manager thread to constellation
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#[derive(Deserialize, Serialize)]
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pub enum SWManagerMsg {
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/// Provide the constellation with a means of communicating with the Service Worker Manager
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OwnSender(IpcSender<ServiceWorkerMsg>),
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}
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