Add support for animation callbacks

Let QChannelMapping optionally specify a callback, which then gets
invoked either directly on a worker thread or the gui thread.

Change-Id: I871776f47cc921ceb254f9dc1a7b89ae5c5618d8
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/src/animation/backend/clipanimator.cpp b/src/animation/backend/clipanimator.cpp
index 65fd0f57f..ea31698d0 100644
--- a/src/animation/backend/clipanimator.cpp
+++ b/src/animation/backend/clipanimator.cpp
@@ -40,6 +40,7 @@
 #include <Qt3DAnimation/private/animationclip_p.h>
 #include <Qt3DAnimation/private/managers_p.h>
 #include <Qt3DAnimation/private/animationlogging_p.h>
+#include <Qt3DAnimation/private/qanimationcallbacktrigger_p.h>
 #include <Qt3DCore/qpropertyupdatedchange.h>
 #include <Qt3DCore/private/qpropertyupdatedchangebase_p.h>
 
@@ -129,6 +130,21 @@ void ClipAnimator::sendPropertyChanges(const QVector<Qt3DCore::QSceneChangePtr>
         notifyObservers(change);
 }
 
+void ClipAnimator::sendCallbacks(const QVector<AnimationCallbackAndValue> &callbacks)
+{
+    for (const AnimationCallbackAndValue &callback : callbacks) {
+        if (callback.flags.testFlag(QAnimationCallback::OnThreadPool)) {
+            callback.callback->valueChanged(callback.value);
+        } else {
+            auto e = QAnimationCallbackTriggerPtr::create(peerId());
+            e->setCallback(callback.callback);
+            e->setValue(callback.value);
+            e->setDeliveryFlags(Qt3DCore::QSceneChange::Nodes);
+            notifyObservers(e);
+        }
+    }
+}
+
 } // namespace Animation
 } // namespace Qt3DAnimation