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Ensure that when outputting screenshots, animations are ticked as required.

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Fixes timeout in transition_calc.html.
This commit is contained in:
Glenn Watson 2016-01-28 11:49:47 +10:00
parent de81d88324
commit 6a85102a5a
1 changed files with 34 additions and 21 deletions
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55
components/compositing/compositor.rs
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@ -65,8 +65,7 @@ pub enum NotReadyToPaint {
LayerHasOutstandingPaintMessages,
MissingRoot,
PendingSubpages(usize),
AnimationsRunning,
AnimationCallbacksRunning,
AnimationsActive,
JustNotifiedConstellation,
WaitingOnConstellation,
}
@ -1584,6 +1583,22 @@ impl<Window: WindowMethods> IOCompositor<Window> {
false
}
// Check if any pipelines currently have active animations or animation callbacks.
fn animations_active(&self) -> bool {
for (_, details) in &self.pipeline_details {
// If animations are currently running, then don't bother checking
// with the constellation if the output image is stable.
if details.animations_running {
return true;
}
if details.animation_callbacks_running {
return true;
}
}
false
}
/// Query the constellation to see if the current compositor
/// output matches the current frame tree output, and if the
/// associated script threads are idle.
@ -1617,15 +1632,6 @@ impl<Window: WindowMethods> IOCompositor<Window> {
// frame tree.
let mut pipeline_epochs = HashMap::new();
for (id, details) in &self.pipeline_details {
// If animations are currently running, then don't bother checking
// with the constellation if the output image is stable.
if details.animations_running {
return Err(NotReadyToPaint::AnimationsRunning);
}
if details.animation_callbacks_running {
return Err(NotReadyToPaint::AnimationCallbacksRunning);
}
pipeline_epochs.insert(*id, details.current_epoch);
}
@ -1686,18 +1692,25 @@ impl<Window: WindowMethods> IOCompositor<Window> {
return Err(UnableToComposite::WindowUnprepared)
}
match target {
CompositeTarget::WindowAndPng | CompositeTarget::PngFile => {
if let Err(result) = self.is_ready_to_paint_image_output() {
return Err(UnableToComposite::NotReadyToPaintImage(result))
}
}
CompositeTarget::Window => {
if opts::get().exit_after_load {
if let Err(result) = self.is_ready_to_paint_image_output() {
return Err(UnableToComposite::NotReadyToPaintImage(result))
let wait_for_stable_image = match target {
CompositeTarget::WindowAndPng | CompositeTarget::PngFile => true,
CompositeTarget::Window => opts::get().exit_after_load,
};
if wait_for_stable_image {
match self.is_ready_to_paint_image_output() {
Ok(()) => {
// The current image is ready to output. However, if there are animations active,
// tick those instead and continue waiting for the image output to be stable AND
// all active animations to complete.
if self.animations_active() {
self.process_animations();
return Err(UnableToComposite::NotReadyToPaintImage(NotReadyToPaint::AnimationsActive));
}
}
Err(result) => {
return Err(UnableToComposite::NotReadyToPaintImage(result))
}
}
}