/**
 * @file llpanelwearing.cpp
 * @brief List of agent's worn items.
 *
 * $LicenseInfo:firstyear=2010&license=viewergpl$
 *
 * Copyright (c) 2010, Linden Research, Inc.
 *
 * Second Life Viewer Source Code
 * The source code in this file ("Source Code") is provided by Linden Lab
 * to you under the terms of the GNU General Public License, version 2.0
 * ("GPL"), unless you have obtained a separate licensing agreement
 * ("Other License"), formally executed by you and Linden Lab.  Terms of
 * the GPL can be found in doc/GPL-license.txt in this distribution, or
 * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
 *
 * There are special exceptions to the terms and conditions of the GPL as
 * it is applied to this Source Code. View the full text of the exception
 * in the file doc/FLOSS-exception.txt in this software distribution, or
 * online at http://secondlifegrid.net/programs/open_source/licensing/flossexception
 *
 * By copying, modifying or distributing this software, you acknowledge
 * that you have read and understood your obligations described above,
 * and agree to abide by those obligations.
 *
 * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
 * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
 * COMPLETENESS OR PERFORMANCE.
 * $/LicenseInfo$
 */

#include "llviewerprecompiledheaders.h"

#include "llpanelwearing.h"

#include "llappearancemgr.h"
#include "llinventorymodel.h"
#include "llinventoryobserver.h"
#include "llsidetray.h"
#include "llviewermenu.h"
#include "llwearableitemslist.h"

// Context menu and Gear menu helper.
static void edit_outfit()
{
	LLSideTray::getInstance()->showPanel("sidepanel_appearance", LLSD().with("type", "edit_outfit"));
}

//////////////////////////////////////////////////////////////////////////

class LLWearingGearMenu
{
public:
	LLWearingGearMenu()
	:	mMenu(NULL)
	{
		LLUICtrl::CommitCallbackRegistry::ScopedRegistrar registrar;

		registrar.add("Gear.Edit", boost::bind(&edit_outfit));

		mMenu = LLUICtrlFactory::getInstance()->createFromFile<LLMenuGL>(
			"menu_wearing_gear.xml", gMenuHolder, LLViewerMenuHolderGL::child_registry_t::instance());
		llassert(mMenu);
	}

	void show(LLView* spawning_view)
	{
		if (!mMenu) return;

		mMenu->buildDrawLabels();
		mMenu->updateParent(LLMenuGL::sMenuContainer);
		S32 menu_x = 0;
		S32 menu_y = spawning_view->getRect().getHeight() + mMenu->getRect().getHeight();
		LLMenuGL::showPopup(spawning_view, mMenu, menu_x, menu_y);
	}

private:
	LLMenuGL*		mMenu;
};

//////////////////////////////////////////////////////////////////////////

class LLWearingContextMenu : public LLListContextMenu
{
protected:
	/* virtual */ LLContextMenu* createMenu()
	{
		LLUICtrl::CommitCallbackRegistry::ScopedRegistrar registrar;

		registrar.add("Wearing.Edit", boost::bind(&edit_outfit));

		return createFromFile("menu_wearing_tab.xml");
	}
};

//////////////////////////////////////////////////////////////////////////

std::string LLPanelAppearanceTab::sFilterSubString = LLStringUtil::null;

static LLRegisterPanelClassWrapper<LLPanelWearing> t_panel_wearing("panel_wearing");

LLPanelWearing::LLPanelWearing()
	:	LLPanelAppearanceTab()
	,	mCOFItemsList(NULL)
	,	mIsInitialized(false)
{
	mCategoriesObserver = new LLInventoryCategoriesObserver();

	mGearMenu = new LLWearingGearMenu();
	mContextMenu = new LLWearingContextMenu();
}

LLPanelWearing::~LLPanelWearing()
{
	delete mGearMenu;
	delete mContextMenu;

	if (gInventory.containsObserver(mCategoriesObserver))
	{
		gInventory.removeObserver(mCategoriesObserver);
		delete mCategoriesObserver;
	}
}

BOOL LLPanelWearing::postBuild()
{
	mCOFItemsList = getChild<LLWearableItemsList>("cof_items_list");
	mCOFItemsList->setRightMouseDownCallback(boost::bind(&LLPanelWearing::onWearableItemsListRightClick, this, _1, _2, _3));

	return TRUE;
}

//virtual
void LLPanelWearing::onOpen(const LLSD& /*info*/)
{
	if (!mIsInitialized)
	{
		// *TODO: I'm not sure is this check necessary but it never match while developing.
		if (!gInventory.isInventoryUsable())
			return;

		const LLUUID cof = gInventory.findCategoryUUIDForType(LLFolderType::FT_CURRENT_OUTFIT);

		// *TODO: I'm not sure is this check necessary but it never match while developing.
		LLViewerInventoryCategory* category = gInventory.getCategory(cof);
		if (!category)
			return;

		gInventory.addObserver(mCategoriesObserver);

		// Start observing changes in Current Outfit category.
		mCategoriesObserver->addCategory(cof, boost::bind(&LLWearableItemsList::updateList, mCOFItemsList, cof));

		// Fetch Current Outfit contents and refresh the list to display
		// initially fetched items. If not all items are fetched now
		// the observer will refresh the list as soon as the new items
		// arrive.
		category->fetch();

		mCOFItemsList->updateList(cof);

		mIsInitialized = true;
	}
}

// virtual
void LLPanelWearing::setFilterSubString(const std::string& string)
{
	sFilterSubString = string;
	mCOFItemsList->setFilterSubString(sFilterSubString);
}

// virtual
bool LLPanelWearing::isActionEnabled(const LLSD& userdata)
{
	const std::string command_name = userdata.asString();

	if (command_name == "save_outfit")
	{
		bool outfit_locked = LLAppearanceMgr::getInstance()->isOutfitLocked();
		bool outfit_dirty = LLAppearanceMgr::getInstance()->isOutfitDirty();
		// allow save only if outfit isn't locked and is dirty
		return !outfit_locked && outfit_dirty;
	}
	return false;
}

// virtual
void LLPanelWearing::showGearMenu(LLView* spawning_view)
{
	if (!mGearMenu) return;
	mGearMenu->show(spawning_view);
}

boost::signals2::connection LLPanelWearing::setSelectionChangeCallback(commit_callback_t cb)
{
	if (!mCOFItemsList) return boost::signals2::connection();

	return mCOFItemsList->setCommitCallback(cb);
}

void LLPanelWearing::onWearableItemsListRightClick(LLUICtrl* ctrl, S32 x, S32 y)
{
	LLWearableItemsList* list = dynamic_cast<LLWearableItemsList*>(ctrl);
	if (!list) return;

	uuid_vec_t selected_uuids;

	list->getSelectedUUIDs(selected_uuids);

	mContextMenu->show(ctrl, selected_uuids, x, y);
}

// EOF