mirror of
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82 lines
2.5 KiB
Rust
82 lines
2.5 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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//! The high-level interface from script to constellation. Using this abstract interface helps reduce
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//! coupling between these two components
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use geom::rect::Rect;
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use geom::size::TypedSize2D;
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use geom::scale_factor::ScaleFactor;
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use layers::geometry::DevicePixel;
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use servo_util::geometry::{PagePx, ViewportPx};
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use std::comm::{channel, Sender, Receiver};
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use url::Url;
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#[deriving(Clone)]
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pub struct ConstellationChan(pub Sender<Msg>);
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impl ConstellationChan {
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pub fn new() -> (Receiver<Msg>, ConstellationChan) {
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let (chan, port) = channel();
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(port, ConstellationChan(chan))
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}
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}
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#[deriving(PartialEq)]
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pub enum IFrameSandboxState {
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IFrameSandboxed,
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IFrameUnsandboxed
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}
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// We pass this info to various tasks, so it lives in a separate, cloneable struct.
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#[deriving(Clone)]
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pub struct Failure {
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pub pipeline_id: PipelineId,
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pub subpage_id: Option<SubpageId>,
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}
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pub struct WindowSizeData {
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/// The size of the initial layout viewport, before parsing an
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/// http://www.w3.org/TR/css-device-adapt/#initial-viewport
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pub initial_viewport: TypedSize2D<ViewportPx, f32>,
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/// The "viewing area" in page px. See `PagePx` documentation for details.
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pub visible_viewport: TypedSize2D<PagePx, f32>,
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/// The resolution of the window in dppx, not including any "pinch zoom" factor.
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pub device_pixel_ratio: ScaleFactor<ViewportPx, DevicePixel, f32>,
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}
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/// Messages from the compositor and script to the constellation.
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pub enum Msg {
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ExitMsg,
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FailureMsg(Failure),
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InitLoadUrlMsg(Url),
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LoadCompleteMsg(PipelineId, Url),
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FrameRectMsg(PipelineId, SubpageId, Rect<f32>),
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LoadUrlMsg(PipelineId, Url),
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LoadIframeUrlMsg(Url, PipelineId, SubpageId, IFrameSandboxState),
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NavigateMsg(NavigationDirection),
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RendererReadyMsg(PipelineId),
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ResizedWindowMsg(WindowSizeData),
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}
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/// Represents the two different ways to which a page can be navigated
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#[deriving(Clone, PartialEq, Hash)]
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pub enum NavigationType {
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Load, // entered or clicked on a url
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Navigate, // browser forward/back buttons
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}
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#[deriving(Clone, PartialEq, Hash)]
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pub enum NavigationDirection {
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Forward,
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Back,
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}
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#[deriving(Clone, PartialEq, Eq, Hash)]
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pub struct PipelineId(pub uint);
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#[deriving(Clone, PartialEq, Eq, Hash)]
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pub struct SubpageId(pub uint);
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