[libkwineffects] Don't expose the fullscreen effect lock to the public API

Summary:
The fullscreen effect lock is purely an implementation detail of the
AnimationEffect, we don't need to have it in the public API.

Test Plan: KWin still compiles.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D16075

libkwineffects/anidata.cpp

@@ -31,6 +31,16 @@ QDebug operator<<(QDebug dbg, const KWin::AniData &a)
 using namespace KWin;
 static const int Gaussian = 46;
 
+FullScreenEffectLock::FullScreenEffectLock(Effect *effect)
+{
+    effects->setActiveFullScreenEffect(effect);
+}
+
+FullScreenEffectLock::~FullScreenEffectLock()
+{
+    effects->setActiveFullScreenEffect(nullptr);
+}
+
 AniData::AniData()
  : attribute(AnimationEffect::Opacity)
  , customCurve(0) // Linear

libkwineffects/anidata_p.h

@@ -27,6 +27,20 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 namespace KWin {
 
+/**
+ * Wraps effects->setActiveFullScreenEffect for the duration of it's lifespan
+ */
+class FullScreenEffectLock
+{
+public:
+    FullScreenEffectLock(Effect *effect);
+    ~FullScreenEffectLock();
+private:
+    Q_DISABLE_COPY(FullScreenEffectLock)
+    void *d; //unused currently
+};
+typedef QSharedPointer<FullScreenEffectLock> FullScreenEffectLockPtr;
+
 class KWINEFFECTS_EXPORT AniData {
 public:
     AniData();

libkwineffects/kwinanimationeffect.cpp

@@ -965,14 +965,4 @@ AnimationEffect::AniMap AnimationEffect::state() const
     return d->m_animations;
 }
 
-FullScreenEffectLock::FullScreenEffectLock(Effect *effect)
-{
-    effects->setActiveFullScreenEffect(effect);
-}
-
-FullScreenEffectLock::~FullScreenEffectLock()
-{
-    effects->setActiveFullScreenEffect(nullptr);
-}
-
 #include "moc_kwinanimationeffect.cpp"

libkwineffects/kwinanimationeffect.h

@@ -88,20 +88,6 @@ private:
     bool valid;
 };
 
-/**
- * Wraps effects->setActiveFullScreenEffect for the duration of it's lifespan
- */
-class FullScreenEffectLock
-{
-public:
-    FullScreenEffectLock(Effect *effect);
-    ~FullScreenEffectLock();
-private:
-    Q_DISABLE_COPY(FullScreenEffectLock)
-    void *d; //unused currently
-};
-typedef QSharedPointer<FullScreenEffectLock> FullScreenEffectLockPtr;
-
 class AniData;
 class AnimationEffectPrivate;
 class KWINEFFECTS_EXPORT AnimationEffect : public Effect