servo/components/compositing/headless.rs
Bruno de Oliveira Abinader b3927d5a2d Implement Msg::Status with serialized url upon mouseover
Credits for Mike Blumenkrantz (@zmike), I just rebased against trunk and
fixed the url serialization.

Fixes #6178.
2015-07-30 16:37:54 +03:00

137 lines
4.9 KiB
Rust

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use compositor_task::{CompositorEventListener, CompositorReceiver, Msg};
use windowing::WindowEvent;
use euclid::scale_factor::ScaleFactor;
use euclid::size::Size2D;
use msg::constellation_msg::Msg as ConstellationMsg;
use msg::constellation_msg::{ConstellationChan, WindowSizeData};
use profile_traits::mem;
use profile_traits::time;
/// Starts the compositor, which listens for messages on the specified port.
///
/// This is the null compositor which doesn't draw anything to the screen.
/// It's intended for headless testing.
pub struct NullCompositor {
/// The port on which we receive messages.
pub port: Box<CompositorReceiver>,
/// A channel to the constellation.
constellation_chan: ConstellationChan,
/// A channel to the time profiler.
time_profiler_chan: time::ProfilerChan,
/// A channel to the memory profiler.
mem_profiler_chan: mem::ProfilerChan,
}
impl NullCompositor {
fn new(port: Box<CompositorReceiver>,
constellation_chan: ConstellationChan,
time_profiler_chan: time::ProfilerChan,
mem_profiler_chan: mem::ProfilerChan)
-> NullCompositor {
NullCompositor {
port: port,
constellation_chan: constellation_chan,
time_profiler_chan: time_profiler_chan,
mem_profiler_chan: mem_profiler_chan,
}
}
pub fn create(port: Box<CompositorReceiver>,
constellation_chan: ConstellationChan,
time_profiler_chan: time::ProfilerChan,
mem_profiler_chan: mem::ProfilerChan)
-> NullCompositor {
let compositor = NullCompositor::new(port,
constellation_chan,
time_profiler_chan,
mem_profiler_chan);
// Tell the constellation about the initial fake size.
{
let ConstellationChan(ref chan) = compositor.constellation_chan;
chan.send(ConstellationMsg::ResizedWindow(WindowSizeData {
initial_viewport: Size2D::typed(640_f32, 480_f32),
visible_viewport: Size2D::typed(640_f32, 480_f32),
device_pixel_ratio: ScaleFactor::new(1.0),
})).unwrap();
}
compositor
}
}
impl CompositorEventListener for NullCompositor {
fn handle_events(&mut self, _: Vec<WindowEvent>) -> bool {
match self.port.recv_compositor_msg() {
Msg::Exit(chan) => {
debug!("shutting down the constellation");
let ConstellationChan(ref con_chan) = self.constellation_chan;
con_chan.send(ConstellationMsg::Exit).unwrap();
chan.send(()).unwrap();
}
Msg::ShutdownComplete => {
debug!("constellation completed shutdown");
return false
}
Msg::GetNativeDisplay(chan) => {
chan.send(None).unwrap();
}
Msg::SetFrameTree(_, response_chan, _) => {
response_chan.send(()).unwrap();
}
// Explicitly list ignored messages so that when we add a new one,
// we'll notice and think about whether it needs a response, like
// SetFrameTree.
Msg::InitializeLayersForPipeline(..) |
Msg::SetLayerRect(..) |
Msg::AssignPaintedBuffers(..) |
Msg::ChangeRunningAnimationsState(..) |
Msg::ScrollFragmentPoint(..) |
Msg::Status(..) |
Msg::LoadStart(..) |
Msg::LoadComplete(..) |
Msg::ScrollTimeout(..) |
Msg::RecompositeAfterScroll |
Msg::ChangePageTitle(..) |
Msg::ChangePageUrl(..) |
Msg::KeyEvent(..) |
Msg::SetCursor(..) |
Msg::ViewportConstrained(..) => {}
Msg::CreatePng(..) |
Msg::PaintTaskExited(..) |
Msg::IsReadyToSaveImageReply(..) => {}
Msg::NewFavicon(..) => {}
Msg::HeadParsed => {}
Msg::ReturnUnusedNativeSurfaces(..) => {}
Msg::CollectMemoryReports(..) => {}
}
true
}
fn repaint_synchronously(&mut self) {}
fn shutdown(&mut self) {
// Drain compositor port, sometimes messages contain channels that are blocking
// another task from finishing (i.e. SetIds)
while self.port.try_recv_compositor_msg().is_some() {}
self.time_profiler_chan.send(time::ProfilerMsg::Exit);
self.mem_profiler_chan.send(mem::ProfilerMsg::Exit);
}
fn pinch_zoom_level(&self) -> f32 {
1.0
}
fn get_title_for_main_frame(&self) {}
}