mirror of
https://github.com/servo/servo.git
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185 lines
7.8 KiB
Rust
185 lines
7.8 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 DocumentState;
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use IFrameLoadInfo;
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use MouseButton;
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use MouseEventType;
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use MozBrowserEvent;
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use WorkerGlobalScopeInit;
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use WorkerScriptLoadOrigin;
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use canvas_traits::CanvasMsg;
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use devtools_traits::{ScriptToDevtoolsControlMsg, WorkerId};
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use euclid::point::Point2D;
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use euclid::size::Size2D;
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use gfx_traits::LayerId;
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use ipc_channel::ipc::IpcSender;
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use msg::constellation_msg::{Key, KeyModifiers, KeyState, LoadData};
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use msg::constellation_msg::{PipelineId, SubpageId, TraversalDirection};
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use net_traits::CoreResourceMsg;
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use offscreen_gl_context::{GLContextAttributes, GLLimits};
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use style_traits::cursor::Cursor;
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use style_traits::viewport::ViewportConstraints;
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use url::Url;
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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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/// Requests that the constellation inform the compositor of the a cursor change.
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SetCursor(Cursor),
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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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/// Indicates whether this pipeline is currently running animations.
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ChangeRunningAnimationsState(PipelineId, 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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/// Requests that a new WebGL thread be created. (This is done in the constellation because
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/// WebGL uses the GPU and we don't want to give untrusted content access to the GPU.)
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CreateWebGLPaintThread(Size2D<i32>,
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GLContextAttributes,
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IpcSender<Result<(IpcSender<CanvasMsg>, GLLimits), String>>),
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/// Notifies the constellation that this frame has received focus.
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Focus(PipelineId),
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/// Re-send a mouse button event that was sent to the parent window.
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ForwardMouseButtonEvent(PipelineId, MouseEventType, MouseButton, Point2D<f32>),
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/// Re-send a mouse move event that was sent to the parent window.
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ForwardMouseMoveEvent(PipelineId, Point2D<f32>),
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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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/// <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(PipelineId),
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/// A new load has been requested.
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LoadUrl(PipelineId, LoadData),
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/// Dispatch a mozbrowser event to a given iframe,
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/// or to the window if no subpage id is provided.
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MozBrowserEvent(PipelineId, Option<SubpageId>, MozBrowserEvent),
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/// HTMLIFrameElement Forward or Back traversal.
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TraverseHistory(Option<PipelineId>, TraversalDirection),
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/// Gets the length of the joint session history from the constellation.
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JointSessionHistoryLength(PipelineId, IpcSender<u32>),
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/// Favicon detected
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NewFavicon(Url),
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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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RemoveIFrame(PipelineId, Option<IpcSender<()>>),
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/// Change pipeline visibility
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SetVisible(PipelineId, bool),
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/// Notifies constellation that an iframe's visibility has been changed.
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VisibilityChangeComplete(PipelineId, bool),
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/// A load has been requested in an IFrame.
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ScriptLoadedURLInIFrame(IFrameLoadInfo),
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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(PipelineId),
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/// Set the document state for a pipeline (used by screenshot / reftests)
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SetDocumentState(PipelineId, DocumentState),
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/// Update the pipeline Url, which can change after redirections.
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SetFinalUrl(PipelineId, Url),
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/// Check if an alert dialog box should be presented
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Alert(PipelineId, String, IpcSender<bool>),
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/// Scroll a page in a window
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ScrollFragmentPoint(PipelineId, LayerId, Point2D<f32>, 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(PipelineId, 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<(Size2D<u32>, Point2D<i32>)>),
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/// Move the window to a point
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MoveTo(Point2D<i32>),
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/// Resize the window to size
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ResizeTo(Size2D<u32>),
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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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/// Get Scroll Offset
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GetScrollOffset(PipelineId, LayerId, IpcSender<Point2D<f32>>),
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/// A log entry, with the pipeline id and thread name
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LogEntry(Option<PipelineId>, Option<String>, LogEntry),
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/// Notifies the constellation that this pipeline has exited.
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PipelineExited(PipelineId),
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/// Store the data required to activate a service worker for the given scope
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RegisterServiceWorker(ScopeThings, Url),
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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(Deserialize, Serialize, Clone)]
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pub struct ScopeThings {
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/// script resource url
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pub script_url: Url,
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/// pipeline which requested the activation
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pub pipeline_id: PipelineId,
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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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/// 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, Url),
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/// Timeout message sent by active service workers
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Timeout(Url),
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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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