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ports/cef: Implement accelerated compositing for the CEF port.

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Patrick Walton 2014-11-24 17:23:30 -08:00
parent 315e166cf7
commit 8b2aadc30b
35 changed files with 1746 additions and 642 deletions
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104
components/compositing/compositor.rs
View file

@ -3,23 +3,23 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use compositor_layer::{CompositorData, CompositorLayer, DoesntWantScrollEvents};
use compositor_layer::WantsScrollEvents;
use compositor_task::{ChangeReadyState, ChangePaintState, CompositorEventListener};
use compositor_task::{CompositorProxy, CompositorReceiver, CompositorTask};
use compositor_task::{CreateOrUpdateDescendantLayer, CreateOrUpdateRootLayer, Exit};
use compositor_task::{FrameTreeUpdateMsg, GetGraphicsMetadata, LayerProperties};
use compositor_layer::{WantsScrollEvents};
use compositor_task::{ChangePageLoadData, ChangePageTitle, ChangePaintState, ChangeReadyState};
use compositor_task::{CompositorEventListener, CompositorProxy, CompositorReceiver};
use compositor_task::{CompositorTask, CreateOrUpdateDescendantLayer, CreateOrUpdateRootLayer};
use compositor_task::{Exit, FrameTreeUpdateMsg, GetGraphicsMetadata, LayerProperties};
use compositor_task::{LoadComplete, Msg, Paint, PaintMsgDiscarded, ScrollFragmentPoint};
use compositor_task::{ScrollTimeout, SetIds, SetLayerOrigin, ShutdownComplete};
use constellation::{SendableFrameTree, FrameTreeDiff};
use constellation::{FrameId, FrameTreeDiff, SendableFrameTree};
use pipeline::CompositionPipeline;
use scrolling::ScrollingTimerProxy;
use windowing;
use windowing::{IdleWindowEvent, LoadUrlWindowEvent, MouseWindowClickEvent};
use windowing::{MouseWindowEvent, MouseWindowEventClass, MouseWindowMouseDownEvent};
use windowing::{MouseWindowMouseUpEvent, MouseWindowMoveEventClass, NavigationWindowEvent};
use windowing::{IdleWindowEvent, InitializeCompositingWindowEvent};
use windowing::{KeyEvent, LoadUrlWindowEvent, MouseWindowClickEvent, MouseWindowEvent};
use windowing::{MouseWindowEventClass, MouseWindowMouseDownEvent, MouseWindowMouseUpEvent};
use windowing::{MouseWindowMoveEventClass, NavigationWindowEvent, PinchZoomWindowEvent};
use windowing::{QuitWindowEvent, RefreshWindowEvent, ResizeWindowEvent, ScrollWindowEvent};
use windowing::{WindowEvent, WindowMethods, WindowNavigateMsg, ZoomWindowEvent};
use windowing::{PinchZoomWindowEvent, KeyEvent};
use azure::azure_hl;
use std::cmp;
@ -40,11 +40,11 @@ use gleam::gl::types::{GLint, GLsizei};
use gleam::gl;
use script_traits::{ViewportMsg, ScriptControlChan};
use servo_msg::compositor_msg::{Blank, Epoch, FinishedLoading, IdlePaintState, LayerId};
use servo_msg::compositor_msg::{ReadyState, PaintingPaintState, PaintState, Scrollable};
use servo_msg::constellation_msg::{ConstellationChan, ExitMsg, LoadUrlMsg};
use servo_msg::constellation_msg::{NavigateMsg, LoadData, PipelineId, ResizedWindowMsg};
use servo_msg::constellation_msg::{WindowSizeData, KeyState, Key, KeyModifiers};
use servo_msg::constellation_msg;
use servo_msg::compositor_msg::{ReadyState, PaintState, PaintingPaintState, Scrollable};
use servo_msg::constellation_msg::{mod, ConstellationChan, ExitMsg};
use servo_msg::constellation_msg::{GetPipelineTitleMsg, Key, KeyModifiers, KeyState, LoadData};
use servo_msg::constellation_msg::{LoadUrlMsg, NavigateMsg, PipelineId, ResizedWindowMsg};
use servo_msg::constellation_msg::{WindowSizeData};
use servo_util::geometry::{PagePx, ScreenPx, ViewportPx};
use servo_util::memory::MemoryProfilerChan;
use servo_util::opts;
@ -58,6 +58,7 @@ use std::slice::bytes::copy_memory;
use time::{precise_time_ns, precise_time_s};
use url::Url;
/// NB: Never block on the constellation, because sometimes the constellation blocks on us.
pub struct IOCompositor<Window: WindowMethods> {
/// The application window.
window: Rc<Window>,
@ -65,8 +66,9 @@ pub struct IOCompositor<Window: WindowMethods> {
/// The port on which we receive messages.
port: Box<CompositorReceiver>,
/// The render context.
context: RenderContext,
/// The render context. This will be `None` if the windowing system has not yet sent us a
/// `PrepareRenderingEvent`.
context: Option<RenderContext>,
/// The root pipeline.
root_pipeline: Option<CompositionPipeline>,
@ -177,13 +179,10 @@ impl<Window: WindowMethods> IOCompositor<Window> {
// display list. This is only here because we don't have that logic in the painter yet.
let window_size = window.framebuffer_size();
let hidpi_factor = window.hidpi_factor();
let context = CompositorTask::create_graphics_context(&window.native_metadata());
let show_debug_borders = opts::get().show_debug_borders;
IOCompositor {
window: window,
port: receiver,
context: rendergl::RenderContext::new(context, show_debug_borders),
context: None,
root_pipeline: None,
scene: Scene::new(Rect {
origin: Zero::zero(),
@ -262,6 +261,14 @@ impl<Window: WindowMethods> IOCompositor<Window> {
self.change_paint_state(pipeline_id, paint_state);
}
(ChangePageTitle(pipeline_id, title), NotShuttingDown) => {
self.change_page_title(pipeline_id, title);
}
(ChangePageLoadData(frame_id, load_data), NotShuttingDown) => {
self.change_page_load_data(frame_id, load_data);
}
(PaintMsgDiscarded, NotShuttingDown) => {
self.remove_outstanding_paint_msg();
}
@ -305,13 +312,18 @@ impl<Window: WindowMethods> IOCompositor<Window> {
self.scroll_fragment_to_point(pipeline_id, layer_id, point);
}
(LoadComplete(..), NotShuttingDown) => {
(LoadComplete, NotShuttingDown) => {
self.got_load_complete_message = true;
// If we're painting in headless mode, schedule a recomposite.
if opts::get().output_file.is_some() {
self.composite_if_necessary();
}
// Inform the embedder that the load has finished.
//
// TODO(pcwalton): Specify which frame's load completed.
self.window.load_end();
}
(ScrollTimeout(timestamp), NotShuttingDown) => {
@ -371,6 +383,14 @@ impl<Window: WindowMethods> IOCompositor<Window> {
self.window.set_paint_state(paint_state);
}
fn change_page_title(&mut self, _: PipelineId, title: Option<String>) {
self.window.set_page_title(title);
}
fn change_page_load_data(&mut self, _: FrameId, load_data: LoadData) {
self.window.set_page_load_data(load_data);
}
fn all_pipelines_in_idle_paint_state(&self) -> bool {
if self.ready_states.len() == 0 {
return false;
@ -629,7 +649,11 @@ impl<Window: WindowMethods> IOCompositor<Window> {
IdleWindowEvent => {}
RefreshWindowEvent => {
self.composite_if_necessary()
self.composite();
}
InitializeCompositingWindowEvent => {
self.initialize_compositing();
}
ResizeWindowEvent(size) => {
@ -678,6 +702,8 @@ impl<Window: WindowMethods> IOCompositor<Window> {
}
fn on_resize_window_event(&mut self, new_size: TypedSize2D<DevicePixel, uint>) {
debug!("compositor resizing to {}", new_size.to_untyped());
// A size change could also mean a resolution change.
let new_hidpi_factor = self.window.hidpi_factor();
if self.hidpi_factor != new_hidpi_factor {
@ -960,6 +986,10 @@ impl<Window: WindowMethods> IOCompositor<Window> {
}
fn composite(&mut self) {
if !self.window.prepare_for_composite() {
return
}
let output_image = opts::get().output_file.is_some() &&
self.is_ready_to_paint_image_output();
@ -995,7 +1025,14 @@ impl<Window: WindowMethods> IOCompositor<Window> {
// paint the scene.
match self.scene.root {
Some(ref layer) => {
rendergl::render_scene(layer.clone(), self.context, &self.scene);
match self.context {
None => {
debug!("compositor: not compositing because context not yet set up")
}
Some(context) => {
rendergl::render_scene(layer.clone(), context, &self.scene);
}
}
}
None => {}
}
@ -1053,6 +1090,12 @@ impl<Window: WindowMethods> IOCompositor<Window> {
}
}
fn initialize_compositing(&mut self) {
let context = CompositorTask::create_graphics_context(&self.window.native_metadata());
let show_debug_borders = opts::get().show_debug_borders;
self.context = Some(rendergl::RenderContext::new(context, show_debug_borders))
}
fn find_topmost_layer_at_point_for_layer(&self,
layer: Rc<Layer<CompositorData>>,
point: TypedPoint2D<LayerPixel, f32>)
@ -1229,4 +1272,17 @@ impl<Window> CompositorEventListener for IOCompositor<Window> where Window: Wind
self.scrolling_timer.shutdown();
}
fn pinch_zoom_level(&self) -> f32 {
self.viewport_zoom.get() as f32
}
fn get_title_for_main_frame(&self) {
let root_pipeline_id = match self.root_pipeline {
None => return,
Some(ref root_pipeline) => root_pipeline.id,
};
let ConstellationChan(ref chan) = self.constellation_chan;
chan.send(GetPipelineTitleMsg(root_pipeline_id));
}
}

22
components/compositing/compositor_task.rs
View file

@ -5,7 +5,7 @@
//! Communication with the compositor task.
pub use windowing;
pub use constellation::{SendableFrameTree, FrameTreeDiff};
pub use constellation::{FrameId, SendableFrameTree, FrameTreeDiff};
use compositor;
use headless;
@ -19,7 +19,7 @@ use layers::platform::surface::{NativeCompositingGraphicsContext, NativeGraphics
use layers::layers::LayerBufferSet;
use servo_msg::compositor_msg::{Epoch, LayerId, LayerMetadata, ReadyState};
use servo_msg::compositor_msg::{PaintListener, PaintState, ScriptListener, ScrollPolicy};
use servo_msg::constellation_msg::{ConstellationChan, PipelineId};
use servo_msg::constellation_msg::{ConstellationChan, LoadData, PipelineId};
use servo_util::memory::MemoryProfilerChan;
use servo_util::time::TimeProfilerChan;
use std::comm::{channel, Sender, Receiver};
@ -81,8 +81,13 @@ impl ScriptListener for Box<CompositorProxy+'static+Send> {
fn dup(&mut self) -> Box<ScriptListener+'static> {
box self.clone_compositor_proxy() as Box<ScriptListener+'static>
}
fn set_title(&mut self, pipeline_id: PipelineId, title: Option<String>) {
self.send(ChangePageTitle(pipeline_id, title))
}
}
/// Information about each layer that the compositor keeps.
pub struct LayerProperties {
pub pipeline_id: PipelineId,
pub epoch: Epoch,
@ -184,9 +189,13 @@ pub enum Msg {
ChangeReadyState(PipelineId, ReadyState),
/// Alerts the compositor to the current status of painting.
ChangePaintState(PipelineId, PaintState),
/// Alerts the compositor that the PaintMsg has been discarded.
/// Alerts the compositor that the current page has changed its title.
ChangePageTitle(PipelineId, Option<String>),
/// Alerts the compositor that the current page has changed its load data (including URL).
ChangePageLoadData(FrameId, LoadData),
/// Alerts the compositor that a `PaintMsg` has been discarded.
PaintMsgDiscarded,
/// Sets the channel to the current layout and paint tasks, along with their id
/// Sets the channel to the current layout and paint tasks, along with their ID.
SetIds(SendableFrameTree, Sender<()>, ConstellationChan),
/// Sends an updated version of the frame tree.
FrameTreeUpdateMsg(FrameTreeDiff, Sender<()>),
@ -210,6 +219,8 @@ impl Show for Msg {
Paint(..) => write!(f, "Paint"),
ChangeReadyState(..) => write!(f, "ChangeReadyState"),
ChangePaintState(..) => write!(f, "ChangePaintState"),
ChangePageTitle(..) => write!(f, "ChangePageTitle"),
ChangePageLoadData(..) => write!(f, "ChangePageLoadData"),
PaintMsgDiscarded(..) => write!(f, "PaintMsgDiscarded"),
SetIds(..) => write!(f, "SetIds"),
FrameTreeUpdateMsg(..) => write!(f, "FrameTreeUpdateMsg"),
@ -269,5 +280,8 @@ pub trait CompositorEventListener {
fn handle_event(&mut self, event: WindowEvent) -> bool;
fn repaint_synchronously(&mut self);
fn shutdown(&mut self);
fn pinch_zoom_level(&self) -> f32;
/// Requests that the compositor send the title for the main frame as soon as possible.
fn get_title_for_main_frame(&self);
}

181
components/compositing/constellation.rs
View file

@ -4,7 +4,8 @@
use pipeline::{Pipeline, CompositionPipeline};
use compositor_task::{CompositorProxy, FrameTreeUpdateMsg, LoadComplete, ShutdownComplete, SetLayerOrigin, SetIds};
use compositor_task::{ChangePageLoadData, ChangePageTitle, CompositorProxy, FrameTreeUpdateMsg};
use compositor_task::{LoadComplete, SetLayerOrigin, SetIds, ShutdownComplete};
use devtools_traits;
use devtools_traits::DevtoolsControlChan;
use geom::rect::{Rect, TypedRect};
@ -14,16 +15,16 @@ use gfx::paint_task;
use layers::geometry::DevicePixel;
use layout_traits::{LayoutControlChan, LayoutTaskFactory, ExitNowMsg};
use libc;
use script_traits;
use script_traits::{ResizeMsg, ResizeInactiveMsg, ExitPipelineMsg, SendEventMsg};
use script_traits::{mod, GetTitleMsg, ResizeMsg, ResizeInactiveMsg, ExitPipelineMsg, SendEventMsg};
use script_traits::{ScriptControlChan, ScriptTaskFactory};
use servo_msg::compositor_msg::LayerId;
use servo_msg::constellation_msg::{ConstellationChan, ExitMsg, FailureMsg, Failure, FrameRectMsg};
use servo_msg::constellation_msg::{GetPipelineTitleMsg};
use servo_msg::constellation_msg::{IFrameSandboxState, IFrameUnsandboxed, InitLoadUrlMsg};
use servo_msg::constellation_msg::{LoadCompleteMsg, LoadUrlMsg, LoadData, Msg, NavigateMsg};
use servo_msg::constellation_msg::{NavigationType, PipelineId, PainterReadyMsg, ResizedWindowMsg};
use servo_msg::constellation_msg::{KeyEvent, Key, KeyState, KeyModifiers, LoadCompleteMsg};
use servo_msg::constellation_msg::{LoadData, LoadUrlMsg, Msg, NavigateMsg, NavigationType};
use servo_msg::constellation_msg::{PainterReadyMsg, PipelineId, ResizedWindowMsg};
use servo_msg::constellation_msg::{ScriptLoadedURLInIFrameMsg, SubpageId, WindowSizeData};
use servo_msg::constellation_msg::{KeyEvent, Key, KeyState, KeyModifiers};
use servo_msg::constellation_msg;
use servo_net::image_cache_task::{ImageCacheTask, ImageCacheTaskClient};
use servo_net::resource_task::ResourceTask;
@ -76,6 +77,10 @@ pub struct Constellation<LTF, STF> {
/// The next free ID to assign to a pipeline.
next_pipeline_id: PipelineId,
/// The next free ID to assign to a frame.
next_frame_id: FrameId,
/// Navigation operations that are in progress.
pending_frames: Vec<FrameChange>,
pending_sizes: HashMap<(PipelineId, SubpageId), TypedRect<PagePx, f32>>,
@ -86,17 +91,28 @@ pub struct Constellation<LTF, STF> {
pub window_size: WindowSizeData,
}
/// Stores the Id of the outermost frame's pipeline, along with a vector of children frames
/// A unique ID used to identify a frame.
pub struct FrameId(u32);
/// One frame in the hierarchy.
struct FrameTree {
/// The ID of this frame.
pub id: FrameId,
/// The pipeline for this frame.
pub pipeline: Rc<Pipeline>,
/// The parent frame's pipeline.
pub parent: RefCell<Option<Rc<Pipeline>>>,
/// A vector of child frames.
pub children: RefCell<Vec<ChildFrameTree>>,
/// Whether this frame has a compositor layer.
pub has_compositor_layer: Cell<bool>,
}
impl FrameTree {
fn new(pipeline: Rc<Pipeline>, parent_pipeline: Option<Rc<Pipeline>>) -> FrameTree {
fn new(id: FrameId, pipeline: Rc<Pipeline>, parent_pipeline: Option<Rc<Pipeline>>)
-> FrameTree {
FrameTree {
id: id,
pipeline: pipeline,
parent: RefCell::new(parent_pipeline),
children: RefCell::new(vec!()),
@ -234,16 +250,19 @@ impl Iterator<Rc<FrameTree>> for FrameTreeIterator {
/// Represents the portion of a page that is changing in navigating.
struct FrameChange {
/// The old pipeline ID.
pub before: Option<PipelineId>,
/// The resulting frame tree after navigation.
pub after: Rc<FrameTree>,
/// The kind of navigation that is occurring.
pub navigation_type: NavigationType,
}
/// Stores the Id's of the pipelines previous and next in the browser's history
struct NavigationContext {
pub previous: Vec<Rc<FrameTree>>,
pub next: Vec<Rc<FrameTree>>,
pub current: Option<Rc<FrameTree>>,
previous: Vec<Rc<FrameTree>>,
next: Vec<Rc<FrameTree>>,
current: Option<Rc<FrameTree>>,
}
impl NavigationContext {
@ -258,29 +277,30 @@ impl NavigationContext {
/* Note that the following two methods can fail. They should only be called *
* when it is known that there exists either a previous page or a next page. */
fn back(&mut self) -> Rc<FrameTree> {
fn back(&mut self, compositor_proxy: &mut CompositorProxy) -> Rc<FrameTree> {
self.next.push(self.current.take().unwrap());
let prev = self.previous.pop().unwrap();
self.current = Some(prev.clone());
self.set_current(prev.clone(), compositor_proxy);
prev
}
fn forward(&mut self) -> Rc<FrameTree> {
fn forward(&mut self, compositor_proxy: &mut CompositorProxy) -> Rc<FrameTree> {
self.previous.push(self.current.take().unwrap());
let next = self.next.pop().unwrap();
self.current = Some(next.clone());
self.set_current(next.clone(), compositor_proxy);
next
}
/// Loads a new set of page frames, returning all evicted frame trees
fn load(&mut self, frame_tree: Rc<FrameTree>) -> Vec<Rc<FrameTree>> {
fn load(&mut self, frame_tree: Rc<FrameTree>, compositor_proxy: &mut CompositorProxy)
-> Vec<Rc<FrameTree>> {
debug!("navigating to {}", frame_tree.pipeline.id);
let evicted = replace(&mut self.next, vec!());
match self.current.take() {
Some(current) => self.previous.push(current),
None => (),
}
self.current = Some(frame_tree);
self.set_current(frame_tree, compositor_proxy);
evicted
}
@ -308,6 +328,14 @@ impl NavigationContext {
frame_tree.contains(pipeline_id)
})
}
/// Always use this method to set the currently-displayed frame. It correctly informs the
/// compositor of the new URLs.
fn set_current(&mut self, new_frame: Rc<FrameTree>, compositor_proxy: &mut CompositorProxy) {
self.current = Some(new_frame.clone());
compositor_proxy.send(ChangePageLoadData(new_frame.id,
new_frame.pipeline.load_data.clone()));
}
}
impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
@ -334,6 +362,7 @@ impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
pipelines: HashMap::new(),
navigation_context: NavigationContext::new(),
next_pipeline_id: PipelineId(0),
next_frame_id: FrameId(0),
pending_frames: vec!(),
pending_sizes: HashMap::new(),
time_profiler_chan: time_profiler_chan,
@ -358,31 +387,30 @@ impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
}
/// Helper function for creating a pipeline
fn new_pipeline(&self,
fn new_pipeline(&mut self,
id: PipelineId,
subpage_id: Option<SubpageId>,
script_pipeline: Option<Rc<Pipeline>>,
load_data: LoadData)
-> Rc<Pipeline> {
let pipe = Pipeline::create::<LTF, STF>(id,
subpage_id,
self.chan.clone(),
self.compositor_proxy.clone_compositor_proxy(),
self.devtools_chan.clone(),
self.image_cache_task.clone(),
self.font_cache_task.clone(),
self.resource_task.clone(),
self.storage_task.clone(),
self.time_profiler_chan.clone(),
self.window_size,
script_pipeline,
load_data);
pipe.load();
Rc::new(pipe)
let pipe = Pipeline::create::<LTF, STF>(id,
subpage_id,
self.chan.clone(),
self.compositor_proxy.clone_compositor_proxy(),
self.devtools_chan.clone(),
self.image_cache_task.clone(),
self.font_cache_task.clone(),
self.resource_task.clone(),
self.storage_task.clone(),
self.time_profiler_chan.clone(),
self.window_size,
script_pipeline,
load_data.clone());
pipe.load();
Rc::new(pipe)
}
/// Helper function for getting a unique pipeline Id
/// Helper function for getting a unique pipeline ID.
fn get_next_pipeline_id(&mut self) -> PipelineId {
let id = self.next_pipeline_id;
let PipelineId(ref mut i) = self.next_pipeline_id;
@ -390,6 +418,14 @@ impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
id
}
/// Helper function for getting a unique frame ID.
fn get_next_frame_id(&mut self) -> FrameId {
let id = self.next_frame_id;
let FrameId(ref mut i) = self.next_frame_id;
*i += 1;
id
}
/// Convenience function for getting the currently active frame tree.
/// The currently active frame tree should always be the current painter
fn current_frame<'a>(&'a self) -> &'a Option<Rc<FrameTree>> {
@ -465,6 +501,10 @@ impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
debug!("constellation got key event message");
self.handle_key_msg(key, state, modifiers);
}
GetPipelineTitleMsg(pipeline_id) => {
debug!("constellation got get-pipeline-title message");
self.handle_get_pipeline_title_msg(pipeline_id);
}
}
true
}
@ -529,27 +569,38 @@ impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
debug!("creating replacement pipeline for about:failure");
let new_id = self.get_next_pipeline_id();
let new_frame_id = self.get_next_frame_id();
let pipeline = self.new_pipeline(new_id, subpage_id, None,
LoadData::new(Url::parse("about:failure").unwrap()));
self.pending_frames.push(FrameChange{
before: Some(pipeline_id),
after: Rc::new(FrameTree::new(pipeline.clone(), None)),
navigation_type: constellation_msg::Load,
});
self.browse(Some(pipeline_id),
Rc::new(FrameTree::new(new_frame_id, pipeline.clone(), None)),
constellation_msg::Load);
self.pipelines.insert(new_id, pipeline);
}
/// Performs navigation. This pushes a `FrameChange` object onto the list of pending frames.
///
/// TODO(pcwalton): Send a `BeforeBrowse` message to the embedder and allow cancellation.
fn browse(&mut self,
before: Option<PipelineId>,
after: Rc<FrameTree>,
navigation_type: NavigationType) {
self.pending_frames.push(FrameChange {
before: before,
after: after,
navigation_type: navigation_type,
});
}
fn handle_init_load(&mut self, url: Url) {
let next_pipeline_id = self.get_next_pipeline_id();
let next_frame_id = self.get_next_frame_id();
let pipeline = self.new_pipeline(next_pipeline_id, None, None, LoadData::new(url));
self.pending_frames.push(FrameChange {
before: None,
after: Rc::new(FrameTree::new(pipeline.clone(), None)),
navigation_type: constellation_msg::Load,
});
self.browse(None,
Rc::new(FrameTree::new(next_frame_id, pipeline.clone(), None)),
constellation_msg::Load);
self.pipelines.insert(pipeline.id, pipeline);
}
@ -690,15 +741,19 @@ impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
let rect = self.pending_sizes.remove(&(source_pipeline_id, subpage_id));
for frame_tree in frame_trees.iter() {
let next_frame_id = self.get_next_frame_id();
frame_tree.children.borrow_mut().push(ChildFrameTree::new(
Rc::new(FrameTree::new(pipeline.clone(), Some(source_pipeline.clone()))),
Rc::new(FrameTree::new(next_frame_id,
pipeline.clone(),
Some(source_pipeline.clone()))),
rect));
}
self.pipelines.insert(pipeline.id, pipeline);
}
fn handle_load_url_msg(&mut self, source_id: PipelineId, load_data: LoadData) {
debug!("Constellation: received message to load {:s}", load_data.url.to_string());
let url = load_data.url.to_string();
debug!("Constellation: received message to load {:s}", url);
// Make sure no pending page would be overridden.
let source_frame = self.current_frame().as_ref().unwrap().find(source_id).expect(
"Constellation: received a LoadUrlMsg from a pipeline_id associated
@ -723,14 +778,13 @@ impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
let parent = source_frame.parent.clone();
let subpage_id = source_frame.pipeline.subpage_id;
let next_pipeline_id = self.get_next_pipeline_id();
let next_frame_id = self.get_next_frame_id();
let pipeline = self.new_pipeline(next_pipeline_id, subpage_id, None, load_data);
self.pending_frames.push(FrameChange {
before: Some(source_id),
after: Rc::new(FrameTree::new(pipeline.clone(), parent.borrow().clone())),
navigation_type: constellation_msg::Load,
});
self.browse(Some(source_id),
Rc::new(FrameTree::new(next_frame_id,
pipeline.clone(),
parent.borrow().clone())),
constellation_msg::Load);
self.pipelines.insert(pipeline.id, pipeline);
}
@ -752,7 +806,7 @@ impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
frame.pipeline.revoke_paint_permission();
}
}
self.navigation_context.forward()
self.navigation_context.forward(&mut *self.compositor_proxy)
}
constellation_msg::Back => {
if self.navigation_context.previous.is_empty() {
@ -764,7 +818,7 @@ impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
frame.pipeline.revoke_paint_permission();
}
}
self.navigation_context.back()
self.navigation_context.back(&mut *self.compositor_proxy)
}
};
@ -787,6 +841,16 @@ impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
});
}
fn handle_get_pipeline_title_msg(&mut self, pipeline_id: PipelineId) {
match self.pipelines.get(&pipeline_id) {
None => self.compositor_proxy.send(ChangePageTitle(pipeline_id, None)),
Some(pipeline) => {
let ScriptControlChan(ref script_channel) = pipeline.script_chan;
script_channel.send(GetTitleMsg(pipeline_id));
}
}
}
fn handle_painter_ready_msg(&mut self, pipeline_id: PipelineId) {
debug!("Painter {} ready to send paint msg", pipeline_id);
// This message could originate from a pipeline in the navigation context or
@ -941,7 +1005,8 @@ impl<LTF: LayoutTaskFactory, STF: ScriptTaskFactory> Constellation<LTF, STF> {
match navigation_type {
constellation_msg::Load => {
debug!("evicting old frames due to load");
let evicted = self.navigation_context.load(frame_tree);
let evicted = self.navigation_context.load(frame_tree,
&mut *self.compositor_proxy);
self.handle_evicted_frames(evicted);
}
_ => {

12
components/compositing/headless.rs
View file

@ -5,7 +5,8 @@
use compositor_task::{GetGraphicsMetadata, CreateOrUpdateRootLayer, CreateOrUpdateDescendantLayer};
use compositor_task::{Exit, ChangeReadyState, LoadComplete, Paint, ScrollFragmentPoint, SetIds};
use compositor_task::{SetLayerOrigin, ShutdownComplete, ChangePaintState, PaintMsgDiscarded};
use compositor_task::{CompositorEventListener, CompositorReceiver, ScrollTimeout, FrameTreeUpdateMsg};
use compositor_task::{CompositorEventListener, CompositorReceiver, ScrollTimeout, ChangePageTitle};
use compositor_task::{ChangePageLoadData, FrameTreeUpdateMsg};
use windowing::WindowEvent;
use geom::scale_factor::ScaleFactor;
@ -104,7 +105,8 @@ impl CompositorEventListener for NullCompositor {
CreateOrUpdateDescendantLayer(..) |
SetLayerOrigin(..) | Paint(..) |
ChangeReadyState(..) | ChangePaintState(..) | ScrollFragmentPoint(..) |
LoadComplete | PaintMsgDiscarded(..) | ScrollTimeout(..) => ()
LoadComplete | PaintMsgDiscarded(..) | ScrollTimeout(..) | ChangePageTitle(..) |
ChangePageLoadData(..) => ()
}
true
}
@ -119,4 +121,10 @@ impl CompositorEventListener for NullCompositor {
self.time_profiler_chan.send(time::ExitMsg);
self.memory_profiler_chan.send(memory::ExitMsg);
}
fn pinch_zoom_level(&self) -> f32 {
1.0
}
fn get_title_for_main_frame(&self) {}
}

35
components/compositing/pipeline.rs
View file

@ -28,8 +28,10 @@ pub struct Pipeline {
pub paint_chan: PaintChan,
pub layout_shutdown_port: Receiver<()>,
pub paint_shutdown_port: Receiver<()>,
/// The most recently loaded page
/// Load data corresponding to the most recently-loaded page.
pub load_data: LoadData,
/// The title of the most recently-loaded page.
pub title: Option<String>,
}
/// The subset of the pipeline that is needed for layer composition.
@ -44,21 +46,21 @@ impl Pipeline {
/// Starts a paint task, layout task, and possibly a script task.
/// Returns the channels wrapped in a struct.
/// If script_pipeline is not None, then subpage_id must also be not None.
pub fn create<LTF:LayoutTaskFactory, STF:ScriptTaskFactory>(
id: PipelineId,
subpage_id: Option<SubpageId>,
constellation_chan: ConstellationChan,
compositor_proxy: Box<CompositorProxy+'static+Send>,
devtools_chan: Option<DevtoolsControlChan>,
image_cache_task: ImageCacheTask,
font_cache_task: FontCacheTask,
resource_task: ResourceTask,
storage_task: StorageTask,
time_profiler_chan: TimeProfilerChan,
window_size: WindowSizeData,
script_pipeline: Option<Rc<Pipeline>>,
load_data: LoadData)
-> Pipeline {
pub fn create<LTF,STF>(id: PipelineId,
subpage_id: Option<SubpageId>,
constellation_chan: ConstellationChan,
compositor_proxy: Box<CompositorProxy+'static+Send>,
devtools_chan: Option<DevtoolsControlChan>,
image_cache_task: ImageCacheTask,
font_cache_task: FontCacheTask,
resource_task: ResourceTask,
storage_task: StorageTask,
time_profiler_chan: TimeProfilerChan,
window_size: WindowSizeData,
script_pipeline: Option<Rc<Pipeline>>,
load_data: LoadData)
-> Pipeline
where LTF: LayoutTaskFactory, STF:ScriptTaskFactory {
let layout_pair = ScriptTaskFactory::create_layout_channel(None::<&mut STF>);
let (paint_port, paint_chan) = PaintChan::new();
let (paint_shutdown_chan, paint_shutdown_port) = channel();
@ -153,6 +155,7 @@ impl Pipeline {
layout_shutdown_port: layout_shutdown_port,
paint_shutdown_port: paint_shutdown_port,
load_data: load_data,
title: None,
}
}

25
components/compositing/windowing.rs
View file

@ -11,8 +11,8 @@ use geom::scale_factor::ScaleFactor;
use geom::size::TypedSize2D;
use layers::geometry::DevicePixel;
use layers::platform::surface::NativeGraphicsMetadata;
use servo_msg::constellation_msg::{Key, KeyState, KeyModifiers};
use servo_msg::compositor_msg::{ReadyState, PaintState};
use servo_msg::compositor_msg::{PaintState, ReadyState};
use servo_msg::constellation_msg::{Key, KeyState, KeyModifiers, LoadData};
use servo_util::geometry::ScreenPx;
use std::fmt::{FormatError, Formatter, Show};
use std::rc::Rc;
@ -37,8 +37,12 @@ pub enum WindowEvent {
/// It's possible that this should be something like
/// `CompositorMessageWindowEvent(compositor_task::Msg)` instead.
IdleWindowEvent,
/// Sent when part of the window is marked dirty and needs to be redrawn.
/// Sent when part of the window is marked dirty and needs to be redrawn. Before sending this
/// message, the window must make the same GL context as in `PrepareRenderingEvent` current.
RefreshWindowEvent,
/// Sent to initialize the GL context. The windowing system must have a valid, current GL
/// context when this message is sent.
InitializeCompositingWindowEvent,
/// Sent when the window is resized.
ResizeWindowEvent(TypedSize2D<DevicePixel, uint>),
/// Sent when a new URL is to be loaded.
@ -47,7 +51,8 @@ pub enum WindowEvent {
MouseWindowEventClass(MouseWindowEvent),
/// Sent when a mouse move.
MouseWindowMoveEventClass(TypedPoint2D<DevicePixel, f32>),
/// Sent when the user scrolls. Includes the current cursor position.
/// Sent when the user scrolls. The first point is the delta and the second point is the
/// origin.
ScrollWindowEvent(TypedPoint2D<DevicePixel, f32>, TypedPoint2D<DevicePixel, i32>),
/// Sent when the user zooms.
ZoomWindowEvent(f32),
@ -66,6 +71,7 @@ impl Show for WindowEvent {
match *self {
IdleWindowEvent => write!(f, "Idle"),
RefreshWindowEvent => write!(f, "Refresh"),
InitializeCompositingWindowEvent => write!(f, "InitializeCompositing"),
ResizeWindowEvent(..) => write!(f, "Resize"),
KeyEvent(..) => write!(f, "Key"),
LoadUrlWindowEvent(..) => write!(f, "LoadUrl"),
@ -92,6 +98,12 @@ pub trait WindowMethods {
fn set_ready_state(&self, ready_state: ReadyState);
/// Sets the paint state of the current page.
fn set_paint_state(&self, paint_state: PaintState);
/// Sets the page title for the current page.
fn set_page_title(&self, title: Option<String>);
/// Sets the load data for the current page.
fn set_page_load_data(&self, load_data: LoadData);
/// Called when the browser is done loading a frame.
fn load_end(&self);
/// Returns the hidpi factor of the monitor.
fn hidpi_factor(&self) -> ScaleFactor<ScreenPx, DevicePixel, f32>;
@ -106,5 +118,10 @@ pub trait WindowMethods {
/// magic to wake the up window's event loop.
fn create_compositor_channel(_: &Option<Rc<Self>>)
-> (Box<CompositorProxy+Send>, Box<CompositorReceiver>);
/// Requests that the window system prepare a composite. Typically this will involve making
/// some type of platform-specific graphics context current. Returns true if the composite may
/// proceed and false if it should not.
fn prepare_for_composite(&self) -> bool;
}