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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <tools/diagnose_ex.h>
+
+#include <subsettableshapemanager.hxx>
+#include <eventqueue.hxx>
+#include "intrinsicanimationactivity.hxx"
+#include <intrinsicanimationeventhandler.hxx>
+
+#include <memory>
+
+namespace slideshow::internal
+{
+ namespace {
+
+ /** Activity for intrinsic shape animations
+
+ This is an Activity interface implementation for intrinsic
+ shape animations. Intrinsic shape animations are
+ animations directly within a shape, e.g. drawing layer
+ animations, or GIF animations.
+ */
+ class IntrinsicAnimationActivity : public Activity
+ {
+ public:
+ /** Create an IntrinsicAnimationActivity.
+
+ @param rContext
+ Common slideshow objects
+
+ @param rDrawShape
+ Shape to control the intrinsic animation for
+
+ @param rWakeupEvent
+ Externally generated wakeup event, to set this
+ activity to sleep during inter-frame intervals. Must
+ come from the outside, since wakeup event and this
+ object have mutual references to each other.
+
+ @param rTimeouts
+ Vector of timeout values, to wait before the next
+ frame is shown.
+ */
+ IntrinsicAnimationActivity( const SlideShowContext& rContext,
+ const DrawShapeSharedPtr& rDrawShape,
+ const WakeupEventSharedPtr& rWakeupEvent,
+ ::std::vector<double>&& rTimeouts,
+ ::std::size_t nNumLoops );
+ IntrinsicAnimationActivity(const IntrinsicAnimationActivity&) = delete;
+ IntrinsicAnimationActivity& operator=(const IntrinsicAnimationActivity&) = delete;
+
+ virtual void dispose() override;
+ virtual double calcTimeLag() const override;
+ virtual bool perform() override;
+ virtual bool isActive() const override;
+ virtual void dequeued() override;
+ virtual void end() override;
+
+ bool enableAnimations();
+
+ private:
+ SlideShowContext maContext;
+ std::weak_ptr<DrawShape> mpDrawShape;
+ WakeupEventSharedPtr mpWakeupEvent;
+ IntrinsicAnimationEventHandlerSharedPtr mpListener;
+ ::std::vector<double> maTimeouts;
+ ::std::size_t mnCurrIndex;
+ ::std::size_t mnNumLoops;
+ ::std::size_t mnLoopCount;
+ bool mbIsActive;
+ };
+
+
+ class IntrinsicAnimationListener : public IntrinsicAnimationEventHandler
+ {
+ public:
+ explicit IntrinsicAnimationListener( IntrinsicAnimationActivity& rActivity ) :
+ mrActivity( rActivity )
+ {}
+ IntrinsicAnimationListener(const IntrinsicAnimationListener&) = delete;
+ IntrinsicAnimationListener& operator=(const IntrinsicAnimationListener&) = delete;
+
+ private:
+
+ virtual bool enableAnimations() override { return mrActivity.enableAnimations(); }
+ virtual bool disableAnimations() override { mrActivity.end(); return true; }
+
+ IntrinsicAnimationActivity& mrActivity;
+ };
+
+ }
+
+ IntrinsicAnimationActivity::IntrinsicAnimationActivity( const SlideShowContext& rContext,
+ const DrawShapeSharedPtr& rDrawShape,
+ const WakeupEventSharedPtr& rWakeupEvent,
+ ::std::vector<double>&& rTimeouts,
+ ::std::size_t nNumLoops ) :
+ maContext( rContext ),
+ mpDrawShape( rDrawShape ),
+ mpWakeupEvent( rWakeupEvent ),
+ mpListener( std::make_shared<IntrinsicAnimationListener>(*this) ),
+ maTimeouts( std::move(rTimeouts) ),
+ mnCurrIndex(0),
+ mnNumLoops(nNumLoops),
+ mnLoopCount(0),
+ mbIsActive(false)
+ {
+ ENSURE_OR_THROW( rContext.mpSubsettableShapeManager,
+ "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Invalid shape manager" );
+ ENSURE_OR_THROW( rDrawShape,
+ "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Invalid draw shape" );
+ ENSURE_OR_THROW( rWakeupEvent,
+ "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Invalid wakeup event" );
+ ENSURE_OR_THROW( !maTimeouts.empty(),
+ "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Empty timeout vector" );
+
+ maContext.mpSubsettableShapeManager->addIntrinsicAnimationHandler(
+ mpListener );
+ }
+
+ void IntrinsicAnimationActivity::dispose()
+ {
+ end();
+
+ if( mpWakeupEvent )
+ mpWakeupEvent->dispose();
+
+ maContext.dispose();
+ mpDrawShape.reset();
+ mpWakeupEvent.reset();
+ maTimeouts.clear();
+ mnCurrIndex = 0;
+
+ maContext.mpSubsettableShapeManager->removeIntrinsicAnimationHandler(
+ mpListener );
+ }
+
+ double IntrinsicAnimationActivity::calcTimeLag() const
+ {
+ return 0.0;
+ }
+
+ bool IntrinsicAnimationActivity::perform()
+ {
+ if( !isActive() )
+ return false;
+
+ DrawShapeSharedPtr pDrawShape( mpDrawShape.lock() );
+ if( !pDrawShape || !mpWakeupEvent )
+ {
+ // event or draw shape vanished, no sense living on ->
+ // commit suicide.
+ dispose();
+ return false;
+ }
+
+ const ::std::size_t nNumFrames(maTimeouts.size());
+
+ // mnNumLoops == 0 means infinite looping
+ if( mnNumLoops != 0 &&
+ mnLoopCount >= mnNumLoops )
+ {
+ // #i55294# After finishing the loops, display the last frame
+ // powerpoint 2013 and firefox etc show the last frame when
+ // the animation ends
+ pDrawShape->setIntrinsicAnimationFrame(nNumFrames - 1);
+ maContext.mpSubsettableShapeManager->notifyShapeUpdate( pDrawShape );
+
+ end();
+
+ return false;
+ }
+
+ ::std::size_t nNewIndex = 0;
+
+ pDrawShape->setIntrinsicAnimationFrame( mnCurrIndex );
+
+ mpWakeupEvent->start();
+ mpWakeupEvent->setNextTimeout( maTimeouts[mnCurrIndex] );
+
+ mnLoopCount += (mnCurrIndex + 1) / nNumFrames;
+ nNewIndex = (mnCurrIndex + 1) % nNumFrames;
+
+ maContext.mrEventQueue.addEvent( mpWakeupEvent );
+ maContext.mpSubsettableShapeManager->notifyShapeUpdate( pDrawShape );
+ mnCurrIndex = nNewIndex;
+
+ return false; // don't reinsert, WakeupEvent will perform
+ // that after the given timeout
+ }
+
+ bool IntrinsicAnimationActivity::isActive() const
+ {
+ return mbIsActive;
+ }
+
+ void IntrinsicAnimationActivity::dequeued()
+ {
+ // not used here
+ }
+
+ void IntrinsicAnimationActivity::end()
+ {
+ // there is no dedicated end state, just become inactive:
+ mbIsActive = false;
+ }
+
+ bool IntrinsicAnimationActivity::enableAnimations()
+ {
+ mbIsActive = true;
+ return maContext.mrActivitiesQueue.addActivity( std::dynamic_pointer_cast<Activity>(shared_from_this()) );
+
+ }
+
+
+ ActivitySharedPtr createIntrinsicAnimationActivity(
+ const SlideShowContext& rContext,
+ const DrawShapeSharedPtr& rDrawShape,
+ const WakeupEventSharedPtr& rWakeupEvent,
+ ::std::vector<double>&& rTimeouts,
+ sal_uInt32 nNumLoops)
+ {
+ return std::make_shared<IntrinsicAnimationActivity>(rContext,
+ rDrawShape,
+ rWakeupEvent,
+ std::move(rTimeouts),
+ nNumLoops);
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */