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protect against cancel of just ended animations

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This commit is contained in:
Thomas Lübking 2016-02-03 12:53:37 +01:00
parent 4f66f324d7
commit 07cc30d136
1 changed files with 11 additions and 1 deletions
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12
libkwineffects/kwinanimationeffect.cpp
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@ -38,10 +38,15 @@ QElapsedTimer AnimationEffect::s_clock;
class AnimationEffectPrivate {
public:
AnimationEffectPrivate() { m_animated = m_damageDirty = m_animationsTouched = m_isInitialized = false; }
AnimationEffectPrivate()
{
m_animated = m_damageDirty = m_animationsTouched = m_isInitialized = false;
m_justEndedAnimation = 0;
}
AnimationEffect::AniMap m_animations;
EffectWindowList m_zombies;
bool m_animated, m_damageDirty, m_needSceneRepaint, m_animationsTouched, m_isInitialized;
quint64 m_justEndedAnimation; // protect against cancel
};
}
@ -231,6 +236,8 @@ quint64 AnimationEffect::p_animate( EffectWindow *w, Attribute a, uint meta, int
bool AnimationEffect::cancel(quint64 animationId)
{
Q_D(AnimationEffect);
if (animationId == d->m_justEndedAnimation)
return true; // this is just ending, do not try to cancel it but fake success
for (AniMap::iterator entry = d->m_animations.begin(), mapEnd = d->m_animations.end(); entry != mapEnd; ++entry) {
for (QList<AniData>::iterator anim = entry->first.begin(), animEnd = entry->first.end(); anim != animEnd; ++anim) {
if (quint64(&(*anim)) == animationId) {
@ -245,6 +252,7 @@ bool AnimationEffect::cancel(quint64 animationId)
}
if (d->m_animations.isEmpty())
disconnectGeometryChanges();
d->m_animationsTouched = true; // could be called from animationEnded
return true;
}
}
@ -292,7 +300,9 @@ void AnimationEffect::prePaintScreen( ScreenPrePaintData& data, int time )
oldW->unreferencePreviousWindowPixmap();
effects->addRepaint(oldW->expandedGeometry());
}
d->m_justEndedAnimation = quint64(&(*anim));
animationEnded(oldW, anim->attribute, anim->meta);
d->m_justEndedAnimation = 0;
// NOTICE animationEnded is an external call and might have called "::animate"
// as a result our iterators could now point random junk on the heap
// so we've to restore the former states, ie. find our window list and animation