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/** 
 * @file llpreviewanim.cpp
 * @brief LLPreviewAnim class implementation
 *
 * $LicenseInfo:firstyear=2004&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#include "llviewerprecompiledheaders.h"

#include "llpreviewanim.h"
#include "llbutton.h"
#include "llresmgr.h"
#include "llinventory.h"
#include "llvoavatarself.h"
#include "llagent.h"          // gAgent
#include "llkeyframemotion.h"
#include "llfilepicker.h"
#include "lllineeditor.h"
#include "lluictrlfactory.h"
#include "lluictrlfactory.h"

extern LLAgent gAgent;

LLPreviewAnim::LLPreviewAnim(const LLSD& key)
	: LLPreview( key )
{
	//Called from floater reg: LLUICtrlFactory::getInstance()->buildFloater(this,"floater_preview_animation.xml", FALSE);
}

// static
void LLPreviewAnim::endAnimCallback( void *userdata )
{
	LLHandle<LLFloater>* handlep = ((LLHandle<LLFloater>*)userdata);
	LLFloater* self = handlep->get();
	delete handlep; // done with the handle
	if (self)
	{
		self->childSetValue("Anim play btn", FALSE);
		self->childSetValue("Anim audition btn", FALSE);
	}
}

// virtual
BOOL LLPreviewAnim::postBuild()
{
	const LLInventoryItem* item = getItem();
	if(item)
	{
		gAgentAvatarp->createMotion(item->getAssetUUID()); // preload the animation
		childSetText("desc", item->getDescription());
	}

	childSetAction("Anim play btn",playAnim, this);
	childSetAction("Anim audition btn",auditionAnim, this);

	childSetCommitCallback("desc", LLPreview::onText, this);
	childSetPrevalidate("desc", &LLTextValidate::validateASCIIPrintableNoPipe);
	
	return LLPreview::postBuild();
}

void LLPreviewAnim::activate(e_activation_type type)
{
	switch ( type ) 
	{
		case PLAY:
		{
			playAnim( (void *) this );
			break;
		}
		case AUDITION:
		{
			auditionAnim( (void *) this );
			break;
		}
		default:
		{
		//do nothing
		}
	}
}

// static
void LLPreviewAnim::playAnim( void *userdata )
{
	LLPreviewAnim* self = (LLPreviewAnim*) userdata;
	const LLInventoryItem *item = self->getItem();

	if(item)
	{
		LLUUID itemID=item->getAssetUUID();

		LLButton* btn = self->getChild<LLButton>("Anim play btn");
		if (btn)
		{
			btn->toggleState();
		}
		
		if (self->childGetValue("Anim play btn").asBoolean() ) 
		{
			self->mPauseRequest = NULL;
			gAgent.sendAnimationRequest(itemID, ANIM_REQUEST_START);
			LLMotion* motion = gAgentAvatarp->findMotion(itemID);
			if (motion)
			{
				motion->setDeactivateCallback(&endAnimCallback, (void *)(new LLHandle<LLFloater>(self->getHandle())));
			}
		}
		else
		{
			gAgentAvatarp->stopMotion(itemID);
			gAgent.sendAnimationRequest(itemID, ANIM_REQUEST_STOP);
		}
	}
}

// static
void LLPreviewAnim::auditionAnim( void *userdata )
{
	LLPreviewAnim* self = (LLPreviewAnim*) userdata;
	const LLInventoryItem *item = self->getItem();

	if(item)
	{
		LLUUID itemID=item->getAssetUUID();

		LLButton* btn = self->getChild<LLButton>("Anim audition btn");
		if (btn)
		{
			btn->toggleState();
		}
		
		if (self->childGetValue("Anim audition btn").asBoolean() ) 
		{
			self->mPauseRequest = NULL;
			gAgentAvatarp->startMotion(item->getAssetUUID());
			LLMotion* motion = gAgentAvatarp->findMotion(itemID);
			
			if (motion)
			{
				motion->setDeactivateCallback(&endAnimCallback, (void *)(new LLHandle<LLFloater>(self->getHandle())));
			}
		}
		else
		{
			gAgentAvatarp->stopMotion(itemID);
			gAgent.sendAnimationRequest(itemID, ANIM_REQUEST_STOP);
		}
	}
}

// virtual
void LLPreviewAnim::onClose(bool app_quitting)
{
	const LLInventoryItem *item = getItem();

	if(item)
	{
		gAgentAvatarp->stopMotion(item->getAssetUUID());
		gAgent.sendAnimationRequest(item->getAssetUUID(), ANIM_REQUEST_STOP);
		LLMotion* motion = gAgentAvatarp->findMotion(item->getAssetUUID());
		
		if (motion)
		{
			// *TODO: minor memory leak here, user data is never deleted (Use real callbacks)
			motion->setDeactivateCallback(NULL, (void *)NULL);
		}
	}
}