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style: Add a generic way to deal with lists of values, ditch all uses of as_servo in style/animations.rs

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Emilio Cobos Álvarez 2016-06-30 16:50:09 -07:00
parent 07da4e4ea2
commit ba53c4ea8d
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GPG key ID: 056B727BB9C1027C
6 changed files with 120 additions and 53 deletions
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63
components/style/animation.rs
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@ -253,10 +253,10 @@ impl PropertyAnimation {
new_style: &mut C)
-> Vec<PropertyAnimation> {
let mut result = vec![];
let box_style = new_style.as_servo().get_box();
let transition_property = box_style.transition_property.0[transition_index];
let timing_function = *box_style.transition_timing_function.0.get_mod(transition_index);
let duration = *box_style.transition_duration.0.get_mod(transition_index);
let box_style = new_style.get_box();
let transition_property = box_style.transition_property_at(transition_index);
let timing_function = box_style.transition_timing_function_mod(transition_index);
let duration = box_style.transition_duration_mod(transition_index);
if transition_property != TransitionProperty::All {
@ -333,23 +333,6 @@ impl PropertyAnimation {
}
}
/// Accesses an element of an array, "wrapping around" using modular arithmetic. This is needed
/// to handle [repeatable lists][lists] of differing lengths.
///
/// [lists]: https://drafts.csswg.org/css-transitions/#animtype-repeatable-list
pub trait GetMod {
type Item;
fn get_mod(&self, i: usize) -> &Self::Item;
}
impl<T> GetMod for Vec<T> {
type Item = T;
#[inline]
fn get_mod(&self, i: usize) -> &T {
&(*self)[i % self.len()]
}
}
/// Inserts transitions into the queue of running animations as applicable for
/// the given style difference. This is called from the layout worker threads.
/// Returns true if any animations were kicked off and false otherwise.
@ -362,7 +345,7 @@ pub fn start_transitions_if_applicable<Impl: SelectorImplExt>(new_animations_sen
new_style: &mut Arc<Impl::ComputedValues>)
-> bool {
let mut had_animations = false;
for i in 0..new_style.get_box().transition_count() {
for i in 0..new_style.get_box().transition_property_count() {
// Create any property animations, if applicable.
let property_animations = PropertyAnimation::from_transition(i, old_style, Arc::make_mut(new_style));
for property_animation in property_animations {
@ -372,14 +355,14 @@ pub fn start_transitions_if_applicable<Impl: SelectorImplExt>(new_animations_sen
property_animation.update(Arc::get_mut(new_style).unwrap(), 0.0);
// Kick off the animation.
let box_style = new_style.get_box();
let now = time::precise_time_s();
let box_style = new_style.as_servo().get_box();
let start_time =
now + (box_style.transition_delay.0.get_mod(i).seconds() as f64);
now + (box_style.transition_delay_mod(i).seconds() as f64);
new_animations_sender
.lock().unwrap()
.send(Animation::Transition(node, start_time, AnimationFrame {
duration: box_style.transition_duration.0.get_mod(i).seconds() as f64,
duration: box_style.transition_duration_mod(i).seconds() as f64,
property_animation: property_animation,
}, /* is_expired = */ false)).unwrap();
@ -427,10 +410,10 @@ pub fn maybe_start_animations<Impl: SelectorImplExt>(context: &SharedStyleContex
return false;
}
let box_style = new_style.as_servo().get_box();
for (i, name) in box_style.animation_name.0.iter().enumerate() {
let box_style = new_style.get_box();
for (i, name) in box_style.animation_name_iter().enumerate() {
debug!("maybe_start_animations: name={}", name);
let total_duration = box_style.animation_duration.0.get_mod(i).seconds();
let total_duration = box_style.animation_duration_mod(i).seconds();
if total_duration == 0. {
continue
}
@ -446,16 +429,16 @@ pub fn maybe_start_animations<Impl: SelectorImplExt>(context: &SharedStyleContex
continue;
}
let delay = box_style.animation_delay.0.get_mod(i).seconds();
let delay = box_style.animation_delay_mod(i).seconds();
let now = time::precise_time_s();
let animation_start = now + delay as f64;
let duration = box_style.animation_duration.0.get_mod(i).seconds();
let iteration_state = match *box_style.animation_iteration_count.0.get_mod(i) {
let duration = box_style.animation_duration_mod(i).seconds();
let iteration_state = match box_style.animation_iteration_count_mod(i) {
AnimationIterationCount::Infinite => KeyframesIterationState::Infinite,
AnimationIterationCount::Number(n) => KeyframesIterationState::Finite(0, n),
};
let animation_direction = *box_style.animation_direction.0.get_mod(i);
let animation_direction = box_style.animation_direction_mod(i);
let initial_direction = match animation_direction {
AnimationDirection::normal |
@ -464,7 +447,7 @@ pub fn maybe_start_animations<Impl: SelectorImplExt>(context: &SharedStyleContex
AnimationDirection::alternate_reverse => AnimationDirection::reverse,
};
let running_state = match *box_style.animation_play_state.0.get_mod(i) {
let running_state = match box_style.animation_play_state_mod(i) {
AnimationPlayState::paused => KeyframesRunningState::Paused(0.),
AnimationPlayState::running => KeyframesRunningState::Running,
};
@ -556,9 +539,9 @@ where Impl: SelectorImplExt,
debug_assert!(!animation.steps.is_empty());
let maybe_index = style.as_servo()
.get_box().animation_name.0.iter()
.position(|animation_name| name == animation_name);
let maybe_index = style.get_box()
.animation_name_iter()
.position(|animation_name| *name == animation_name);
let index = match maybe_index {
Some(index) => index,
@ -568,7 +551,7 @@ where Impl: SelectorImplExt,
}
};
let total_duration = style.as_servo().get_box().animation_duration.0.get_mod(index).seconds() as f64;
let total_duration = style.get_box().animation_duration_mod(index).seconds() as f64;
if total_duration == 0. {
debug!("update_style_for_animation: zero duration for animation {:?}", name);
return;
@ -648,9 +631,9 @@ where Impl: SelectorImplExt,
// NB: The spec says that the timing function can be overwritten
// from the keyframe style.
let mut timing_function = *style.as_servo().get_box().animation_timing_function.0.get_mod(index);
if !from_style.as_servo().get_box().animation_timing_function.0.is_empty() {
timing_function = from_style.as_servo().get_box().animation_timing_function.0[0];
let mut timing_function = style.get_box().animation_timing_function_mod(index);
if from_style.get_box().animation_timing_function_count() != 0 {
timing_function = from_style.get_box().animation_timing_function_at(0);
}
let target_style = compute_style_for_animation_step(context,