/**
 * @file utilitybar.cpp
 * @brief Helper class for the utility bar controls
 *
 * $LicenseInfo:firstyear=2001&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2012, Zi Ree @ Second Life
 *
 * 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
 * $/LicenseInfo$
 */

#include "llviewerprecompiledheaders.h"

#include "utilitybar.h"

#include "llbutton.h"

#include "llagent.h"
#include "llstartup.h"
#include "llstatusbar.h"
#include "llviewercontrol.h"
#include "llviewermedia.h"

UtilityBar::UtilityBar() :
	LLSingleton<UtilityBar>(),
	LLEventTimer(0.5f),
	mAOInterfaceButton(NULL),
	mVolumeControlsInterfaceButton(NULL),
	mParcelMediaPlayButton(NULL),
	mParcelStreamPlayButton(NULL),
	mTalkButton(NULL),
	mPTTButton(NULL)
{
	// Tried to do this cleanly with callbacks and controls, but ran into dead ends on every approach.
	// This helper class works, but I am not at all satisfied with it. -Zi
}

UtilityBar::~UtilityBar()
{
}

void UtilityBar::init()
{
	LLView* rootView = LLUI::getInstance()->getRootView();

	// Skip all this if we don't have a skin that needs it
	if (!rootView->findChildView("chat_bar_utility_bar_stack"))
	{
		mEventTimer.stop();
		return;
	}

	mParcelStreamPlayButton = rootView->findChild<LLButton>("utility_parcel_audio_stream_button");
	mParcelMediaPlayButton = rootView->findChild<LLButton>("utility_parcel_media_button");
	mTalkButton = rootView->findChild<LLButton>("utility_talk_button");
	mAOInterfaceButton = rootView->findChild<LLButton>("show_ao_interface_button");
	mVolumeControlsInterfaceButton = rootView->findChild<LLButton>("show_volume_controls_button");
	mPTTButton = rootView->findChild<LLButton>("utility_push_to_talk_lock_button");

	if (mParcelStreamPlayButton)
	{
		mParcelStreamPlayButton->setCommitCallback(boost::bind(&UtilityBar::onParcelStreamClicked, this));
	}
	if (mParcelMediaPlayButton)
	{
		mParcelMediaPlayButton->setCommitCallback(boost::bind(&UtilityBar::onParcelMediaClicked, this));
	}

	if (mTalkButton)
	{
		mTalkButton->setMouseDownCallback(boost::bind(&LLAgent::pressMicrophone, _2));
		mTalkButton->setMouseUpCallback(boost::bind(&LLAgent::releaseMicrophone, _2));
	}

	mEventTimer.start();
}

// PushToTalkToggle
// 	commit.add("Agent.PressMicrophone", boost::bind(&LLAgent::pressMicrophone, _2));
// 	commit.add("Agent.ReleaseMicrophone", boost::bind(&LLAgent::releaseMicrophone, _2));
// 	commit.add("Agent.ToggleMicrophone", boost::bind(&LLAgent::toggleMicrophone, _2));
// 	enable.add("Agent.IsMicrophoneOn", boost::bind(&LLAgent::isMicrophoneOn, _2));
// 	enable.add("Agent.IsActionAllowed", boost::bind(&LLAgent::isActionAllowed, _2));

void UtilityBar::onParcelStreamClicked()
{
	gStatusBar->toggleStream(!LLViewerMedia::getInstance()->isParcelAudioPlaying());
}

void UtilityBar::onParcelMediaClicked()
{
	bool any_media_playing = (LLViewerMedia::getInstance()->isAnyMediaShowing() ||
							  LLViewerMedia::getInstance()->isParcelMediaPlaying());

	gStatusBar->toggleMedia(!any_media_playing);
}

BOOL UtilityBar::tick()
{
	// Don't check media before being logged in properly so we won't try to
	// initialize parcel media classes too early
	if (LLStartUp::getStartupState() != STATE_STARTED)
	{
		return FALSE;
	}

	// NOTE: copied from llstatusbar.cpp
	// This has to be resolved to callbacks or controls eventually -Zi
	LLViewerMedia* inst = LLViewerMedia::getInstance();

	if (mParcelMediaPlayButton)
	{
		// Disable media toggle if there's no media, parcel media, and no parcel audio
		// (or if media is disabled)
		static LLCachedControl<bool> audio_streaming_media(gSavedSettings, "AudioStreamingMedia");
		bool button_enabled = (audio_streaming_media) &&
							(inst->hasInWorldMedia() || inst->hasParcelMedia()	// || LLViewerMedia::hasParcelAudio()	// ## Zi: Media/Stream separation
							);
		mParcelMediaPlayButton->setEnabled(button_enabled);

		// Note the "sense" of the toggle is opposite whether media is playing or not
		bool any_media_playing = (inst->isAnyMediaShowing() ||
								inst->isParcelMediaPlaying());
		mParcelMediaPlayButton->setImageOverlay(any_media_playing ? "icn_pause.tga" : "icn_play.tga");
	}

	if (mParcelStreamPlayButton)
	{
		static LLCachedControl<bool> audio_streaming_music(gSavedSettings, "AudioStreamingMusic");
		bool button_enabled = (audio_streaming_music && inst->hasParcelAudio());

		mParcelStreamPlayButton->setEnabled(button_enabled);
		mParcelStreamPlayButton->setImageOverlay(inst->isParcelAudioPlaying() ? "icn_pause.tga" : "icn_play.tga");
	}

	if (mTalkButton)
	{
		mTalkButton->setValue(gAgent.isMicrophoneOn(LLSD()));
		mTalkButton->setEnabled(LLAgent::isActionAllowed(LLSD("speak")));
	}
	if (mPTTButton)
	{
		mPTTButton->setEnabled(LLAgent::isActionAllowed(LLSD("speak")));
	}

	return FALSE;
}

void UtilityBar::setAOInterfaceButtonExpanded(bool expanded)
{
	if (mAOInterfaceButton)
	{
		if (expanded)
		{
			mAOInterfaceButton->setImageOverlay("arrow_down.tga");
		}
		else
		{
			mAOInterfaceButton->setImageOverlay("arrow_up.tga");
		}
	}
}

void UtilityBar::setVolumeControlsButtonExpanded(bool expanded)
{
	if (mVolumeControlsInterfaceButton)
	{
		if (expanded)
		{
			mVolumeControlsInterfaceButton->setImageOverlay("arrow_down.tga");
		}
		else
		{
			mVolumeControlsInterfaceButton->setImageOverlay("arrow_up.tga");
		}
	}
}