Currently endTime is calculated when getComputedTiming() is called. As a
result, the value returned there doesn't necessarily reflect what we are using
in the model. It would be more simple, consistent and useful if we simply
calculate this as part of GetComputedTimingAt and use it both internally and in
the result to getComputedTiming().
Nothing() represents linear function, i.e. skip calculation.
ParseEasing is changed to return a Maybe<ComputedTimingFunction>,
if timing function is linear function, ParseEasing returns Nothing().
This will allow us to re-use the constructor from Animatable.animate() since the
existing type, UnrestrictedDoubleOrKeyframeEffectOptions, is not compatible with
UnrestrictedDoubleOrKeyframeAnimationOptions (introduced in the next patch in
this series), as used by Animatable.animate()
We store the original value of duration in AnimationTiming, and add
computed duration in ComputedTiming, so both the Timing model and
AnimationEffectTimingReadOnly can get what they want.
By the way, replace mIterationDuration with mDuration.
--HG--
extra : rebase_source : f8e1fd648572e6d7b1cbecc2ac1888a2f74bbc7e
FillMode could be 'auto', and we should treat it as 'none' in the timing model.
However, AnimationEffectTimingReadOnly should get its original value.
By the way, replace mFillMode with mFill.
--HG--
extra : rebase_source : 5a397dd7fbb22ac76fe96003d82d097e398852c7
We want to store the original value from KeyframeEffectOptions whose
iterations is unrestricted double. Therefore, we can get the original value
of iterations by AnimationEffectTimingReadOnly.
By the way, replace mIterationCount with mIterations.
--HG--
extra : rebase_source : da2953056031079c41273ed977545dc926e1b83c
When updating animations, we shouldn't unnecessarily clobber the "wins in
cascade" state of their properties since this can lead to unnecessary restyles
when we then decide we need to update the cascade.
As of bug 1228229, the mWinsInCascade member of animation properties is set
consistently for both animations and transitions such that we only set this
to true if an animation is "in effect".
When an effect is initially created it is not "in effect" until it is attached
to a non-idle animation. We should, therefore, initialize this to false and,
when we become in effect, mark the cascade as needing an update.
Now that restyle requests are handled by the effect, we can more easily detect
cases where we don't need to trigger a style update by looking for when the
output of the effect could actually differ.
Currently, any changes that require updates where the progress does *not* change
(e.g. pausing) are triggered by the Animation. The exception is when we
update timing properties (e.g. animation-iteration-count) from CSS but
current nsAnimationManager takes care to adjust the animation generation in
this case.
--HG--
extra : rebase_source : ecc0b5c80e52ce17214ab8c6ac9681477e3f80ca
This patch implements "case 2" described in the commit message from part 4 of
this patch series.
--HG--
extra : rebase_source : 805f24376fa4648f094fb04247d48d075a73400c
KeyframeEffectReadOnly::NotifyAnimationTimingUpdated currently just acts as an
alias for UpdateTargetRegistration. However, bug 1226118 added logic to
UpdateTargetRegistration which is not strictly related to updating the target
element registration. This patch tidies this up so that UpdateTargetRegistration
only does what its name suggests. This is in preparation for adding more
logic to NotifyAnimationTimingUpdated.
--HG--
extra : rebase_source : c6162e8415613d7ec16744228d7cf498b4c19e2c
KeyframeEffectReadOnly::CanAnimatePropertyOnCompositor has a comment that says
it, "Returns true |aProperty| can be run on compositor for |aFrame|" but it
does nothing of the sort.
What it *does* do is check answer the question, "If there happened to be an
animation of |aProperty| on |aFrame|, should we still run animations on the
compositor for this element?".
This patch renames the method accordingly and moves the step where we iterate
over a given effect's animated properties from
AnimationCollection::CanPerformOnCompositor to inside this method, making this
method a class method rather than a static method at the same time.
As noted in the expanded comment, the approach of blocking opacity animations
in these situations seems unnecessary but for now this patch just preserves the
existing behavior.
This is so that when we have code like:
elem.animate({ opacity: 0 }, 1000)
the resulting Animation object is kept alive by |elem| based on the following
ownership chain:
elem --(strong)--> KeyframeEffectReadOnly --(strong)--> Animation
Now, there is an ownership cycle introduced here because KeyframeEffectReadOnly
objects also store owning references to their target elements. This is broken
when the Animation finishes (if it does not fill forwards) or is cancelled
since either event will trigger a call to
KeyframeEffectReadOnly::UpdateTargetRegistration.
If the Animation fills forwards, the resource will not be released until
it is cancelled. For Animations corresponding to CSS Animations / CSS
Transitions this happens when the Element is unbound or when the corresponding
style property is updated causing the animation to be replaced or removed.
For the general case of script-generated animations, however, this cycle won't
be broken until the Element is unbound and all external references to the
Animation or KeyframeEffectReadOnly are dropped.
It's unfortunate that we can't more aggressively prune these objects but it's
what the spec currently says. I've posted to the mailing list[1] about this but
have yet to find a good solution.
[1] https://lists.w3.org/Archives/Public/public-fx/2015OctDec/0029.html
Use mozilla::dom::FillMode and mozilla::dom::PlaybackDirection
in AnimationTiming.
--HG--
extra : rebase_source : 8210d002d6f116793f439d88b0325ab6fb880048
The preference check has been removed from CanThrottleTransformChanges
because we already perform that check that when deciding if we should run
an animation on the compositor (in CanPerformOnCompositorThread, as called
by GetAnimationsForCompositor). Hence if the "is running on compositor" flag
is true, we can assume the preference is set (or was set when we decided to
put the animation on the compositor-- we don't worry about pulling the
animation off the compositor immediately if the preference changes while
it is running)
Based on AnimationCollection::CanAnimatePropertyOnCompositor.
The first argument has been changed to nsIFrame* so that we don't need to
get style frame for CanAnimateTransformOnCompositor again.
If this patch (and part 9) is an overkill to throttle animations having both
of properties, one can be run on compositor and another can not be, a test
case in test_running_on_compositor[1] will fail.
The test case is for an animation which has transform and background-color
properties.
Animation::CanThrottle() returns true
(then, AnimationCollection::CanPerformOnCompositorThread() returns false)
on current trunk in the test case.
Animation::CanThrottle() returns false with this patch in the test case.
If the test passes, it proves the transform animation is running on compositor
in both cases.
[1] http://hg.mozilla.org/mozilla-central/file/6c7c983bce46/dom/animation/test/chrome/test_running_on_compositor.html#l77
Do some minor revisions in struct ComputedTiming.
1. Use Nullable<double> mProgress, so remove the static const kNullProgress.
The generated ComputedTimingProperties dictionary uses "Nullable" variable,
so we replace the origin type in ComputedTiming to make it more consistent
with that in ComputedTimingProperties dictionary.
2. Use scoped enums for AnimationPhase.
--HG--
extra : rebase_source : 31280c867a30e7bcdcfe831cbc72ca08c8ddc762
The bulk of this commit was generated with a script, executed at the top
level of a typical source code checkout. The only non-machine-generated
part was modifying MFBT's moz.build to reflect the new naming.
CLOSED TREE makes big refactorings like this a piece of cake.
# The main substitution.
find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \
xargs perl -p -i -e '
s/nsRefPtr\.h/RefPtr\.h/g; # handle includes
s/nsRefPtr ?</RefPtr</g; # handle declarations and variables
'
# Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h.
perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h
# Handle nsRefPtr.h itself, a couple places that define constructors
# from nsRefPtr, and code generators specially. We do this here, rather
# than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename
# things like nsRefPtrHashtable.
perl -p -i -e 's/nsRefPtr/RefPtr/g' \
mfbt/nsRefPtr.h \
xpcom/glue/nsCOMPtr.h \
xpcom/base/OwningNonNull.h \
ipc/ipdl/ipdl/lower.py \
ipc/ipdl/ipdl/builtin.py \
dom/bindings/Codegen.py \
python/lldbutils/lldbutils/utils.py
# In our indiscriminate substitution above, we renamed
# nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up.
find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \
xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g'
if [ -d .git ]; then
git mv mfbt/nsRefPtr.h mfbt/RefPtr.h
else
hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h
fi
--HG--
rename : mfbt/nsRefPtr.h => mfbt/RefPtr.h
Daisuke Akatsuka
Ryo Motozawa
Brian Birtles
Hiroyuki Ikezoe
Boris Chiou
Cameron McCormack
Nathan Froyd