mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
854 lines
30 KiB
C++
854 lines
30 KiB
C++
/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
|
|
/* 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/. */
|
|
|
|
#include "nsAnimationManager.h"
|
|
#include "nsTransitionManager.h"
|
|
|
|
#include "mozilla/EventDispatcher.h"
|
|
#include "mozilla/MemoryReporting.h"
|
|
|
|
#include "nsPresContext.h"
|
|
#include "nsRuleProcessorData.h"
|
|
#include "nsStyleSet.h"
|
|
#include "nsStyleChangeList.h"
|
|
#include "nsCSSRules.h"
|
|
#include "RestyleManager.h"
|
|
#include "nsStyleAnimation.h"
|
|
#include "nsLayoutUtils.h"
|
|
#include "nsIFrame.h"
|
|
#include "nsIDocument.h"
|
|
#include <math.h>
|
|
|
|
using namespace mozilla;
|
|
using namespace mozilla::css;
|
|
|
|
ElementAnimations::ElementAnimations(mozilla::dom::Element *aElement,
|
|
nsIAtom *aElementProperty,
|
|
nsAnimationManager *aAnimationManager,
|
|
TimeStamp aNow)
|
|
: CommonElementAnimationData(aElement, aElementProperty,
|
|
aAnimationManager, aNow)
|
|
{
|
|
}
|
|
|
|
static void
|
|
ElementAnimationsPropertyDtor(void *aObject,
|
|
nsIAtom *aPropertyName,
|
|
void *aPropertyValue,
|
|
void *aData)
|
|
{
|
|
ElementAnimations *ea = static_cast<ElementAnimations*>(aPropertyValue);
|
|
#ifdef DEBUG
|
|
NS_ABORT_IF_FALSE(!ea->mCalledPropertyDtor, "can't call dtor twice");
|
|
ea->mCalledPropertyDtor = true;
|
|
#endif
|
|
delete ea;
|
|
}
|
|
|
|
void
|
|
ElementAnimations::GetEventsAt(TimeStamp aRefreshTime,
|
|
EventArray& aEventsToDispatch)
|
|
{
|
|
for (uint32_t animIdx = mAnimations.Length(); animIdx-- != 0; ) {
|
|
ElementAnimation* anim = mAnimations[animIdx];
|
|
|
|
TimeDuration localTime = anim->GetLocalTimeAt(aRefreshTime);
|
|
ComputedTiming computedTiming =
|
|
ElementAnimation::GetComputedTimingAt(localTime, anim->mTiming);
|
|
|
|
switch (computedTiming.mPhase) {
|
|
case ComputedTiming::AnimationPhase_Before:
|
|
// Do nothing
|
|
break;
|
|
|
|
case ComputedTiming::AnimationPhase_Active:
|
|
// Dispatch 'animationstart' or 'animationiteration' when needed.
|
|
if (computedTiming.mCurrentIteration != anim->mLastNotification) {
|
|
// Notify 'animationstart' even if a negative delay puts us
|
|
// past the first iteration.
|
|
// Note that when somebody changes the animation-duration
|
|
// dynamically, this will fire an extra iteration event
|
|
// immediately in many cases. It's not clear to me if that's the
|
|
// right thing to do.
|
|
uint32_t message =
|
|
anim->mLastNotification == ElementAnimation::LAST_NOTIFICATION_NONE
|
|
? NS_ANIMATION_START : NS_ANIMATION_ITERATION;
|
|
|
|
anim->mLastNotification = computedTiming.mCurrentIteration;
|
|
TimeDuration iterationStart =
|
|
anim->mTiming.mIterationDuration *
|
|
computedTiming.mCurrentIteration;
|
|
TimeDuration elapsedTime =
|
|
std::max(iterationStart, anim->InitialAdvance());
|
|
AnimationEventInfo ei(mElement, anim->mName, message,
|
|
elapsedTime, PseudoElement());
|
|
aEventsToDispatch.AppendElement(ei);
|
|
}
|
|
break;
|
|
|
|
case ComputedTiming::AnimationPhase_After:
|
|
TimeDuration activeDuration =
|
|
ElementAnimation::ActiveDuration(anim->mTiming);
|
|
// If we skipped the animation interval entirely, dispatch
|
|
// 'animationstart' first
|
|
if (anim->mLastNotification ==
|
|
ElementAnimation::LAST_NOTIFICATION_NONE) {
|
|
// Notifying for start of 0th iteration.
|
|
// (This is overwritten below but we set it here to maintain
|
|
// internal consistency.)
|
|
anim->mLastNotification = 0;
|
|
TimeDuration elapsedTime =
|
|
std::min(anim->InitialAdvance(), activeDuration);
|
|
AnimationEventInfo ei(mElement, anim->mName, NS_ANIMATION_START,
|
|
elapsedTime, PseudoElement());
|
|
aEventsToDispatch.AppendElement(ei);
|
|
}
|
|
// Dispatch 'animationend' when needed.
|
|
if (anim->mLastNotification !=
|
|
ElementAnimation::LAST_NOTIFICATION_END) {
|
|
anim->mLastNotification = ElementAnimation::LAST_NOTIFICATION_END;
|
|
AnimationEventInfo ei(mElement, anim->mName, NS_ANIMATION_END,
|
|
activeDuration, PseudoElement());
|
|
aEventsToDispatch.AppendElement(ei);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
ElementAnimations*
|
|
nsAnimationManager::GetElementAnimations(dom::Element *aElement,
|
|
nsCSSPseudoElements::Type aPseudoType,
|
|
bool aCreateIfNeeded)
|
|
{
|
|
if (!aCreateIfNeeded && PR_CLIST_IS_EMPTY(&mElementData)) {
|
|
// Early return for the most common case.
|
|
return nullptr;
|
|
}
|
|
|
|
nsIAtom *propName;
|
|
if (aPseudoType == nsCSSPseudoElements::ePseudo_NotPseudoElement) {
|
|
propName = nsGkAtoms::animationsProperty;
|
|
} else if (aPseudoType == nsCSSPseudoElements::ePseudo_before) {
|
|
propName = nsGkAtoms::animationsOfBeforeProperty;
|
|
} else if (aPseudoType == nsCSSPseudoElements::ePseudo_after) {
|
|
propName = nsGkAtoms::animationsOfAfterProperty;
|
|
} else {
|
|
NS_ASSERTION(!aCreateIfNeeded,
|
|
"should never try to create transitions for pseudo "
|
|
"other than :before or :after");
|
|
return nullptr;
|
|
}
|
|
ElementAnimations *ea = static_cast<ElementAnimations*>(
|
|
aElement->GetProperty(propName));
|
|
if (!ea && aCreateIfNeeded) {
|
|
// FIXME: Consider arena-allocating?
|
|
ea = new ElementAnimations(aElement, propName, this,
|
|
mPresContext->RefreshDriver()->MostRecentRefresh());
|
|
nsresult rv = aElement->SetProperty(propName, ea,
|
|
ElementAnimationsPropertyDtor, false);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("SetProperty failed");
|
|
delete ea;
|
|
return nullptr;
|
|
}
|
|
if (propName == nsGkAtoms::animationsProperty) {
|
|
aElement->SetMayHaveAnimations();
|
|
}
|
|
|
|
AddElementData(ea);
|
|
}
|
|
|
|
return ea;
|
|
}
|
|
|
|
void
|
|
nsAnimationManager::UpdateStyleAndEvents(ElementAnimations* aEA,
|
|
TimeStamp aRefreshTime,
|
|
EnsureStyleRuleFlags aFlags)
|
|
{
|
|
aEA->EnsureStyleRuleFor(aRefreshTime, aFlags);
|
|
aEA->GetEventsAt(aRefreshTime, mPendingEvents);
|
|
CheckNeedsRefresh();
|
|
}
|
|
|
|
/* virtual */ void
|
|
nsAnimationManager::RulesMatching(ElementRuleProcessorData* aData)
|
|
{
|
|
NS_ABORT_IF_FALSE(aData->mPresContext == mPresContext,
|
|
"pres context mismatch");
|
|
nsIStyleRule *rule =
|
|
GetAnimationRule(aData->mElement,
|
|
nsCSSPseudoElements::ePseudo_NotPseudoElement);
|
|
if (rule) {
|
|
aData->mRuleWalker->Forward(rule);
|
|
}
|
|
}
|
|
|
|
/* virtual */ void
|
|
nsAnimationManager::RulesMatching(PseudoElementRuleProcessorData* aData)
|
|
{
|
|
NS_ABORT_IF_FALSE(aData->mPresContext == mPresContext,
|
|
"pres context mismatch");
|
|
if (aData->mPseudoType != nsCSSPseudoElements::ePseudo_before &&
|
|
aData->mPseudoType != nsCSSPseudoElements::ePseudo_after) {
|
|
return;
|
|
}
|
|
|
|
// FIXME: Do we really want to be the only thing keeping a
|
|
// pseudo-element alive? I *think* the non-animation restyle should
|
|
// handle that, but should add a test.
|
|
nsIStyleRule *rule = GetAnimationRule(aData->mElement, aData->mPseudoType);
|
|
if (rule) {
|
|
aData->mRuleWalker->Forward(rule);
|
|
}
|
|
}
|
|
|
|
/* virtual */ void
|
|
nsAnimationManager::RulesMatching(AnonBoxRuleProcessorData* aData)
|
|
{
|
|
}
|
|
|
|
#ifdef MOZ_XUL
|
|
/* virtual */ void
|
|
nsAnimationManager::RulesMatching(XULTreeRuleProcessorData* aData)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/* virtual */ size_t
|
|
nsAnimationManager::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
return CommonAnimationManager::SizeOfExcludingThis(aMallocSizeOf);
|
|
|
|
// Measurement of the following members may be added later if DMD finds it is
|
|
// worthwhile:
|
|
// - mPendingEvents
|
|
}
|
|
|
|
/* virtual */ size_t
|
|
nsAnimationManager::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
|
|
}
|
|
|
|
nsIStyleRule*
|
|
nsAnimationManager::CheckAnimationRule(nsStyleContext* aStyleContext,
|
|
mozilla::dom::Element* aElement)
|
|
{
|
|
if (!mPresContext->IsProcessingAnimationStyleChange()) {
|
|
if (!mPresContext->IsDynamic()) {
|
|
// For print or print preview, ignore animations.
|
|
return nullptr;
|
|
}
|
|
|
|
// Everything that causes our animation data to change triggers a
|
|
// style change, which in turn triggers a non-animation restyle.
|
|
// Likewise, when we initially construct frames, we're not in a
|
|
// style change, but also not in an animation restyle.
|
|
|
|
const nsStyleDisplay *disp = aStyleContext->StyleDisplay();
|
|
ElementAnimations *ea =
|
|
GetElementAnimations(aElement, aStyleContext->GetPseudoType(), false);
|
|
if (!ea &&
|
|
disp->mAnimationNameCount == 1 &&
|
|
disp->mAnimations[0].GetName().IsEmpty()) {
|
|
return nullptr;
|
|
}
|
|
|
|
// build the animations list
|
|
ElementAnimationPtrArray newAnimations;
|
|
BuildAnimations(aStyleContext, newAnimations);
|
|
|
|
if (newAnimations.IsEmpty()) {
|
|
if (ea) {
|
|
ea->Destroy();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
TimeStamp refreshTime = mPresContext->RefreshDriver()->MostRecentRefresh();
|
|
|
|
if (ea) {
|
|
ea->mStyleRule = nullptr;
|
|
ea->mStyleRuleRefreshTime = TimeStamp();
|
|
ea->UpdateAnimationGeneration(mPresContext);
|
|
|
|
// Copy over the start times and (if still paused) pause starts
|
|
// for each animation (matching on name only) that was also in the
|
|
// old list of animations.
|
|
// This means that we honor dynamic changes, which isn't what the
|
|
// spec says to do, but WebKit seems to honor at least some of
|
|
// them. See
|
|
// http://lists.w3.org/Archives/Public/www-style/2011Apr/0079.html
|
|
// In order to honor what the spec said, we'd copy more data over
|
|
// (or potentially optimize BuildAnimations to avoid rebuilding it
|
|
// in the first place).
|
|
if (!ea->mAnimations.IsEmpty()) {
|
|
for (uint32_t newIdx = 0, newEnd = newAnimations.Length();
|
|
newIdx != newEnd; ++newIdx) {
|
|
nsRefPtr<ElementAnimation> newAnim = newAnimations[newIdx];
|
|
|
|
// Find the matching animation with this name in the old list
|
|
// of animations. Because of this code, they must all have
|
|
// the same start time, though they might differ in pause
|
|
// state. So if a page uses multiple copies of the same
|
|
// animation in one element's animation list, and gives them
|
|
// different pause states, they, well, get what they deserve.
|
|
// We'll use the last one since it's more likely to be the one
|
|
// doing something.
|
|
const ElementAnimation* oldAnim = nullptr;
|
|
for (uint32_t oldIdx = ea->mAnimations.Length(); oldIdx-- != 0; ) {
|
|
const ElementAnimation* a = ea->mAnimations[oldIdx];
|
|
if (a->mName == newAnim->mName) {
|
|
oldAnim = a;
|
|
break;
|
|
}
|
|
}
|
|
if (!oldAnim) {
|
|
continue;
|
|
}
|
|
|
|
newAnim->mStartTime = oldAnim->mStartTime;
|
|
newAnim->mLastNotification = oldAnim->mLastNotification;
|
|
|
|
if (oldAnim->IsPaused()) {
|
|
if (newAnim->IsPaused()) {
|
|
// Copy pause start just like start time.
|
|
newAnim->mPauseStart = oldAnim->mPauseStart;
|
|
} else {
|
|
// Handle change in pause state by adjusting start
|
|
// time to unpause.
|
|
newAnim->mStartTime += refreshTime - oldAnim->mPauseStart;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
ea = GetElementAnimations(aElement, aStyleContext->GetPseudoType(),
|
|
true);
|
|
}
|
|
ea->mAnimations.SwapElements(newAnimations);
|
|
ea->mNeedsRefreshes = true;
|
|
|
|
UpdateStyleAndEvents(ea, refreshTime, EnsureStyleRule_IsNotThrottled);
|
|
// We don't actually dispatch the mPendingEvents now. We'll either
|
|
// dispatch them the next time we get a refresh driver notification
|
|
// or the next time somebody calls
|
|
// nsPresShell::FlushPendingNotifications.
|
|
if (!mPendingEvents.IsEmpty()) {
|
|
mPresContext->Document()->SetNeedStyleFlush();
|
|
}
|
|
}
|
|
|
|
return GetAnimationRule(aElement, aStyleContext->GetPseudoType());
|
|
}
|
|
|
|
class PercentageHashKey : public PLDHashEntryHdr
|
|
{
|
|
public:
|
|
typedef const float& KeyType;
|
|
typedef const float* KeyTypePointer;
|
|
|
|
PercentageHashKey(KeyTypePointer aKey) : mValue(*aKey) { }
|
|
PercentageHashKey(const PercentageHashKey& toCopy) : mValue(toCopy.mValue) { }
|
|
~PercentageHashKey() { }
|
|
|
|
KeyType GetKey() const { return mValue; }
|
|
bool KeyEquals(KeyTypePointer aKey) const { return *aKey == mValue; }
|
|
|
|
static KeyTypePointer KeyToPointer(KeyType aKey) { return &aKey; }
|
|
static PLDHashNumber HashKey(KeyTypePointer aKey) {
|
|
static_assert(sizeof(PLDHashNumber) == sizeof(uint32_t),
|
|
"this hash function assumes PLDHashNumber is uint32_t");
|
|
static_assert(PLDHashNumber(-1) > PLDHashNumber(0),
|
|
"this hash function assumes PLDHashNumber is uint32_t");
|
|
float key = *aKey;
|
|
NS_ABORT_IF_FALSE(0.0f <= key && key <= 1.0f, "out of range");
|
|
return PLDHashNumber(key * UINT32_MAX);
|
|
}
|
|
enum { ALLOW_MEMMOVE = true };
|
|
|
|
private:
|
|
const float mValue;
|
|
};
|
|
|
|
struct KeyframeData {
|
|
float mKey;
|
|
uint32_t mIndex; // store original order since sort algorithm is not stable
|
|
nsCSSKeyframeRule *mRule;
|
|
};
|
|
|
|
struct KeyframeDataComparator {
|
|
bool Equals(const KeyframeData& A, const KeyframeData& B) const {
|
|
return A.mKey == B.mKey && A.mIndex == B.mIndex;
|
|
}
|
|
bool LessThan(const KeyframeData& A, const KeyframeData& B) const {
|
|
return A.mKey < B.mKey || (A.mKey == B.mKey && A.mIndex < B.mIndex);
|
|
}
|
|
};
|
|
|
|
class ResolvedStyleCache {
|
|
public:
|
|
ResolvedStyleCache() : mCache(16) {}
|
|
nsStyleContext* Get(nsPresContext *aPresContext,
|
|
nsStyleContext *aParentStyleContext,
|
|
nsCSSKeyframeRule *aKeyframe);
|
|
|
|
private:
|
|
nsRefPtrHashtable<nsPtrHashKey<nsCSSKeyframeRule>, nsStyleContext> mCache;
|
|
};
|
|
|
|
nsStyleContext*
|
|
ResolvedStyleCache::Get(nsPresContext *aPresContext,
|
|
nsStyleContext *aParentStyleContext,
|
|
nsCSSKeyframeRule *aKeyframe)
|
|
{
|
|
// FIXME (spec): The css3-animations spec isn't very clear about how
|
|
// properties are resolved when they have values that depend on other
|
|
// properties (e.g., values in 'em'). I presume that they're resolved
|
|
// relative to the other styles of the element. The question is
|
|
// whether they are resolved relative to other animations: I assume
|
|
// that they're not, since that would prevent us from caching a lot of
|
|
// data that we'd really like to cache (in particular, the
|
|
// nsStyleAnimation::Value values in AnimationPropertySegment).
|
|
nsStyleContext *result = mCache.GetWeak(aKeyframe);
|
|
if (!result) {
|
|
nsCOMArray<nsIStyleRule> rules;
|
|
rules.AppendObject(aKeyframe);
|
|
nsRefPtr<nsStyleContext> resultStrong = aPresContext->StyleSet()->
|
|
ResolveStyleByAddingRules(aParentStyleContext, rules);
|
|
mCache.Put(aKeyframe, resultStrong);
|
|
result = resultStrong;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void
|
|
nsAnimationManager::BuildAnimations(nsStyleContext* aStyleContext,
|
|
ElementAnimationPtrArray& aAnimations)
|
|
{
|
|
NS_ABORT_IF_FALSE(aAnimations.IsEmpty(), "expect empty array");
|
|
|
|
ResolvedStyleCache resolvedStyles;
|
|
|
|
const nsStyleDisplay *disp = aStyleContext->StyleDisplay();
|
|
TimeStamp now = mPresContext->RefreshDriver()->MostRecentRefresh();
|
|
for (uint32_t animIdx = 0, animEnd = disp->mAnimationNameCount;
|
|
animIdx != animEnd; ++animIdx) {
|
|
const nsAnimation& src = disp->mAnimations[animIdx];
|
|
nsRefPtr<ElementAnimation> dest =
|
|
*aAnimations.AppendElement(new ElementAnimation());
|
|
|
|
dest->mName = src.GetName();
|
|
|
|
dest->mTiming.mIterationDuration =
|
|
TimeDuration::FromMilliseconds(src.GetDuration());
|
|
dest->mTiming.mDelay = TimeDuration::FromMilliseconds(src.GetDelay());
|
|
dest->mTiming.mIterationCount = src.GetIterationCount();
|
|
dest->mTiming.mDirection = src.GetDirection();
|
|
dest->mTiming.mFillMode = src.GetFillMode();
|
|
|
|
dest->mStartTime = now;
|
|
dest->mPlayState = src.GetPlayState();
|
|
if (dest->IsPaused()) {
|
|
dest->mPauseStart = now;
|
|
} else {
|
|
dest->mPauseStart = TimeStamp();
|
|
}
|
|
|
|
nsCSSKeyframesRule* rule =
|
|
mPresContext->StyleSet()->KeyframesRuleForName(mPresContext,
|
|
dest->mName);
|
|
if (!rule) {
|
|
// no segments
|
|
continue;
|
|
}
|
|
|
|
// While current drafts of css3-animations say that later keyframes
|
|
// with the same key entirely replace earlier ones (no cascading),
|
|
// this is a bad idea and contradictory to the rest of CSS. So
|
|
// we're going to keep all the keyframes for each key and then do
|
|
// the replacement on a per-property basis rather than a per-rule
|
|
// basis, just like everything else in CSS.
|
|
|
|
AutoInfallibleTArray<KeyframeData, 16> sortedKeyframes;
|
|
|
|
for (uint32_t ruleIdx = 0, ruleEnd = rule->StyleRuleCount();
|
|
ruleIdx != ruleEnd; ++ruleIdx) {
|
|
css::Rule* cssRule = rule->GetStyleRuleAt(ruleIdx);
|
|
NS_ABORT_IF_FALSE(cssRule, "must have rule");
|
|
NS_ABORT_IF_FALSE(cssRule->GetType() == css::Rule::KEYFRAME_RULE,
|
|
"must be keyframe rule");
|
|
nsCSSKeyframeRule *kfRule = static_cast<nsCSSKeyframeRule*>(cssRule);
|
|
|
|
const nsTArray<float> &keys = kfRule->GetKeys();
|
|
for (uint32_t keyIdx = 0, keyEnd = keys.Length();
|
|
keyIdx != keyEnd; ++keyIdx) {
|
|
float key = keys[keyIdx];
|
|
// FIXME (spec): The spec doesn't say what to do with
|
|
// out-of-range keyframes. We'll ignore them.
|
|
// (And PercentageHashKey currently assumes we either ignore or
|
|
// clamp them.)
|
|
if (0.0f <= key && key <= 1.0f) {
|
|
KeyframeData *data = sortedKeyframes.AppendElement();
|
|
data->mKey = key;
|
|
data->mIndex = ruleIdx;
|
|
data->mRule = kfRule;
|
|
}
|
|
}
|
|
}
|
|
|
|
sortedKeyframes.Sort(KeyframeDataComparator());
|
|
|
|
if (sortedKeyframes.Length() == 0) {
|
|
// no segments
|
|
continue;
|
|
}
|
|
|
|
// Record the properties that are present in any keyframe rules we
|
|
// are using.
|
|
nsCSSPropertySet properties;
|
|
|
|
for (uint32_t kfIdx = 0, kfEnd = sortedKeyframes.Length();
|
|
kfIdx != kfEnd; ++kfIdx) {
|
|
css::Declaration *decl = sortedKeyframes[kfIdx].mRule->Declaration();
|
|
for (uint32_t propIdx = 0, propEnd = decl->Count();
|
|
propIdx != propEnd; ++propIdx) {
|
|
nsCSSProperty prop = decl->GetPropertyAt(propIdx);
|
|
if (prop != eCSSPropertyExtra_variable) {
|
|
// CSS Variables are not animatable
|
|
properties.AddProperty(prop);
|
|
}
|
|
}
|
|
}
|
|
|
|
for (nsCSSProperty prop = nsCSSProperty(0);
|
|
prop < eCSSProperty_COUNT_no_shorthands;
|
|
prop = nsCSSProperty(prop + 1)) {
|
|
if (!properties.HasProperty(prop) ||
|
|
nsCSSProps::kAnimTypeTable[prop] == eStyleAnimType_None) {
|
|
continue;
|
|
}
|
|
|
|
// Build a list of the keyframes to use for this property. This
|
|
// means we need every keyframe with the property in it, except
|
|
// for those keyframes where a later keyframe with the *same key*
|
|
// also has the property.
|
|
AutoInfallibleTArray<uint32_t, 16> keyframesWithProperty;
|
|
float lastKey = 100.0f; // an invalid key
|
|
for (uint32_t kfIdx = 0, kfEnd = sortedKeyframes.Length();
|
|
kfIdx != kfEnd; ++kfIdx) {
|
|
KeyframeData &kf = sortedKeyframes[kfIdx];
|
|
if (!kf.mRule->Declaration()->HasProperty(prop)) {
|
|
continue;
|
|
}
|
|
if (kf.mKey == lastKey) {
|
|
// Replace previous occurrence of same key.
|
|
keyframesWithProperty[keyframesWithProperty.Length() - 1] = kfIdx;
|
|
} else {
|
|
keyframesWithProperty.AppendElement(kfIdx);
|
|
}
|
|
lastKey = kf.mKey;
|
|
}
|
|
|
|
AnimationProperty &propData = *dest->mProperties.AppendElement();
|
|
propData.mProperty = prop;
|
|
|
|
KeyframeData *fromKeyframe = nullptr;
|
|
nsRefPtr<nsStyleContext> fromContext;
|
|
bool interpolated = true;
|
|
for (uint32_t wpIdx = 0, wpEnd = keyframesWithProperty.Length();
|
|
wpIdx != wpEnd; ++wpIdx) {
|
|
uint32_t kfIdx = keyframesWithProperty[wpIdx];
|
|
KeyframeData &toKeyframe = sortedKeyframes[kfIdx];
|
|
|
|
nsRefPtr<nsStyleContext> toContext =
|
|
resolvedStyles.Get(mPresContext, aStyleContext, toKeyframe.mRule);
|
|
|
|
if (fromKeyframe) {
|
|
interpolated = interpolated &&
|
|
BuildSegment(propData.mSegments, prop, src,
|
|
fromKeyframe->mKey, fromContext,
|
|
fromKeyframe->mRule->Declaration(),
|
|
toKeyframe.mKey, toContext);
|
|
} else {
|
|
if (toKeyframe.mKey != 0.0f) {
|
|
// There's no data for this property at 0%, so use the
|
|
// cascaded value above us.
|
|
interpolated = interpolated &&
|
|
BuildSegment(propData.mSegments, prop, src,
|
|
0.0f, aStyleContext, nullptr,
|
|
toKeyframe.mKey, toContext);
|
|
}
|
|
}
|
|
|
|
fromContext = toContext;
|
|
fromKeyframe = &toKeyframe;
|
|
}
|
|
|
|
if (fromKeyframe->mKey != 1.0f) {
|
|
// There's no data for this property at 100%, so use the
|
|
// cascaded value above us.
|
|
interpolated = interpolated &&
|
|
BuildSegment(propData.mSegments, prop, src,
|
|
fromKeyframe->mKey, fromContext,
|
|
fromKeyframe->mRule->Declaration(),
|
|
1.0f, aStyleContext);
|
|
}
|
|
|
|
// If we failed to build any segments due to inability to
|
|
// interpolate, remove the property from the animation. (It's not
|
|
// clear if this is the right thing to do -- we could run some of
|
|
// the segments, but it's really not clear whether we should skip
|
|
// values (which?) or skip segments, so best to skip the whole
|
|
// thing for now.)
|
|
if (!interpolated) {
|
|
dest->mProperties.RemoveElementAt(dest->mProperties.Length() - 1);
|
|
}
|
|
}
|
|
|
|
aAnimations.AppendElement(dest);
|
|
}
|
|
}
|
|
|
|
bool
|
|
nsAnimationManager::BuildSegment(InfallibleTArray<AnimationPropertySegment>&
|
|
aSegments,
|
|
nsCSSProperty aProperty,
|
|
const nsAnimation& aAnimation,
|
|
float aFromKey, nsStyleContext* aFromContext,
|
|
mozilla::css::Declaration* aFromDeclaration,
|
|
float aToKey, nsStyleContext* aToContext)
|
|
{
|
|
nsStyleAnimation::Value fromValue, toValue, dummyValue;
|
|
if (!ExtractComputedValueForTransition(aProperty, aFromContext, fromValue) ||
|
|
!ExtractComputedValueForTransition(aProperty, aToContext, toValue) ||
|
|
// Check that we can interpolate between these values
|
|
// (If this is ever a performance problem, we could add a
|
|
// CanInterpolate method, but it seems fine for now.)
|
|
!nsStyleAnimation::Interpolate(aProperty, fromValue, toValue,
|
|
0.5, dummyValue)) {
|
|
return false;
|
|
}
|
|
|
|
AnimationPropertySegment &segment = *aSegments.AppendElement();
|
|
|
|
segment.mFromValue = fromValue;
|
|
segment.mToValue = toValue;
|
|
segment.mFromKey = aFromKey;
|
|
segment.mToKey = aToKey;
|
|
const nsTimingFunction *tf;
|
|
if (aFromDeclaration &&
|
|
aFromDeclaration->HasProperty(eCSSProperty_animation_timing_function)) {
|
|
tf = &aFromContext->StyleDisplay()->mAnimations[0].GetTimingFunction();
|
|
} else {
|
|
tf = &aAnimation.GetTimingFunction();
|
|
}
|
|
segment.mTimingFunction.Init(*tf);
|
|
|
|
return true;
|
|
}
|
|
|
|
nsIStyleRule*
|
|
nsAnimationManager::GetAnimationRule(mozilla::dom::Element* aElement,
|
|
nsCSSPseudoElements::Type aPseudoType)
|
|
{
|
|
NS_ABORT_IF_FALSE(
|
|
aPseudoType == nsCSSPseudoElements::ePseudo_NotPseudoElement ||
|
|
aPseudoType == nsCSSPseudoElements::ePseudo_before ||
|
|
aPseudoType == nsCSSPseudoElements::ePseudo_after,
|
|
"forbidden pseudo type");
|
|
|
|
if (!mPresContext->IsDynamic()) {
|
|
// For print or print preview, ignore animations.
|
|
return nullptr;
|
|
}
|
|
|
|
ElementAnimations *ea =
|
|
GetElementAnimations(aElement, aPseudoType, false);
|
|
if (!ea) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (mPresContext->IsProcessingRestyles() &&
|
|
!mPresContext->IsProcessingAnimationStyleChange()) {
|
|
// During the non-animation part of processing restyles, we don't
|
|
// add the animation rule.
|
|
|
|
if (ea->mStyleRule) {
|
|
ea->PostRestyleForAnimation(mPresContext);
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
NS_WARN_IF_FALSE(!ea->mNeedsRefreshes ||
|
|
ea->mStyleRuleRefreshTime ==
|
|
mPresContext->RefreshDriver()->MostRecentRefresh(),
|
|
"should already have refreshed style rule");
|
|
|
|
return ea->mStyleRule;
|
|
}
|
|
|
|
/* virtual */ void
|
|
nsAnimationManager::WillRefresh(mozilla::TimeStamp aTime)
|
|
{
|
|
NS_ABORT_IF_FALSE(mPresContext,
|
|
"refresh driver should not notify additional observers "
|
|
"after pres context has been destroyed");
|
|
if (!mPresContext->GetPresShell()) {
|
|
// Someone might be keeping mPresContext alive past the point
|
|
// where it has been torn down; don't bother doing anything in
|
|
// this case. But do get rid of all our transitions so we stop
|
|
// triggering refreshes.
|
|
RemoveAllElementData();
|
|
return;
|
|
}
|
|
|
|
FlushAnimations(Can_Throttle);
|
|
}
|
|
|
|
void
|
|
nsAnimationManager::AddElementData(CommonElementAnimationData* aData)
|
|
{
|
|
if (!mObservingRefreshDriver) {
|
|
NS_ASSERTION(static_cast<ElementAnimations*>(aData)->mNeedsRefreshes,
|
|
"Added data which doesn't need refreshing?");
|
|
// We need to observe the refresh driver.
|
|
mPresContext->RefreshDriver()->AddRefreshObserver(this, Flush_Style);
|
|
mObservingRefreshDriver = true;
|
|
}
|
|
|
|
PR_INSERT_BEFORE(aData, &mElementData);
|
|
}
|
|
|
|
void
|
|
nsAnimationManager::CheckNeedsRefresh()
|
|
{
|
|
for (PRCList *l = PR_LIST_HEAD(&mElementData); l != &mElementData;
|
|
l = PR_NEXT_LINK(l)) {
|
|
if (static_cast<ElementAnimations*>(l)->mNeedsRefreshes) {
|
|
if (!mObservingRefreshDriver) {
|
|
mPresContext->RefreshDriver()->AddRefreshObserver(this, Flush_Style);
|
|
mObservingRefreshDriver = true;
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
if (mObservingRefreshDriver) {
|
|
mObservingRefreshDriver = false;
|
|
mPresContext->RefreshDriver()->RemoveRefreshObserver(this, Flush_Style);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsAnimationManager::FlushAnimations(FlushFlags aFlags)
|
|
{
|
|
// FIXME: check that there's at least one style rule that's not
|
|
// in its "done" state, and if there isn't, remove ourselves from
|
|
// the refresh driver (but leave the animations!).
|
|
TimeStamp now = mPresContext->RefreshDriver()->MostRecentRefresh();
|
|
bool didThrottle = false;
|
|
for (PRCList *l = PR_LIST_HEAD(&mElementData); l != &mElementData;
|
|
l = PR_NEXT_LINK(l)) {
|
|
ElementAnimations *ea = static_cast<ElementAnimations*>(l);
|
|
bool canThrottleTick = aFlags == Can_Throttle &&
|
|
ea->CanPerformOnCompositorThread(
|
|
CommonElementAnimationData::CanAnimateFlags(0)) &&
|
|
ea->CanThrottleAnimation(now);
|
|
|
|
nsRefPtr<css::AnimValuesStyleRule> oldStyleRule = ea->mStyleRule;
|
|
UpdateStyleAndEvents(ea, now, canThrottleTick
|
|
? EnsureStyleRule_IsThrottled
|
|
: EnsureStyleRule_IsNotThrottled);
|
|
if (oldStyleRule != ea->mStyleRule) {
|
|
ea->PostRestyleForAnimation(mPresContext);
|
|
} else {
|
|
didThrottle = true;
|
|
}
|
|
}
|
|
|
|
if (didThrottle) {
|
|
mPresContext->Document()->SetNeedStyleFlush();
|
|
}
|
|
|
|
DispatchEvents(); // may destroy us
|
|
}
|
|
|
|
void
|
|
nsAnimationManager::DoDispatchEvents()
|
|
{
|
|
EventArray events;
|
|
mPendingEvents.SwapElements(events);
|
|
for (uint32_t i = 0, i_end = events.Length(); i < i_end; ++i) {
|
|
AnimationEventInfo &info = events[i];
|
|
EventDispatcher::Dispatch(info.mElement, mPresContext, &info.mEvent);
|
|
|
|
if (!mPresContext) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsAnimationManager::UpdateThrottledStylesForSubtree(nsIContent* aContent,
|
|
nsStyleContext* aParentStyle,
|
|
nsStyleChangeList& aChangeList)
|
|
{
|
|
dom::Element* element;
|
|
if (aContent->IsElement()) {
|
|
element = aContent->AsElement();
|
|
} else {
|
|
element = nullptr;
|
|
}
|
|
|
|
nsRefPtr<nsStyleContext> newStyle;
|
|
|
|
ElementAnimations* ea;
|
|
if (element &&
|
|
(ea = GetElementAnimations(element,
|
|
nsCSSPseudoElements::ePseudo_NotPseudoElement,
|
|
false))) {
|
|
// re-resolve our style
|
|
newStyle = UpdateThrottledStyle(element, aParentStyle, aChangeList);
|
|
// remove the current transition from the working set
|
|
ea->mFlushGeneration = mPresContext->RefreshDriver()->MostRecentRefresh();
|
|
} else {
|
|
newStyle = ReparentContent(aContent, aParentStyle);
|
|
}
|
|
|
|
// walk the children
|
|
if (newStyle) {
|
|
for (nsIContent *child = aContent->GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
UpdateThrottledStylesForSubtree(child, newStyle, aChangeList);
|
|
}
|
|
}
|
|
}
|
|
|
|
IMPL_UPDATE_ALL_THROTTLED_STYLES_INTERNAL(nsAnimationManager,
|
|
GetElementAnimations)
|
|
|
|
void
|
|
nsAnimationManager::UpdateAllThrottledStyles()
|
|
{
|
|
if (PR_CLIST_IS_EMPTY(&mElementData)) {
|
|
// no throttled animations, leave early
|
|
mPresContext->TickLastUpdateThrottledAnimationStyle();
|
|
return;
|
|
}
|
|
|
|
if (mPresContext->ThrottledAnimationStyleIsUpToDate()) {
|
|
// throttled transitions are up to date, leave early
|
|
return;
|
|
}
|
|
|
|
mPresContext->TickLastUpdateThrottledAnimationStyle();
|
|
|
|
UpdateAllThrottledStylesInternal();
|
|
}
|
|
|