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/**
* @file llnotificationtemplate.h
* @brief Description of notification contents
* @author Q (with assistance from Richard and Coco)
*
* $LicenseInfo:firstyear=2008&license=viewerlgpl$
* 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
* $/LicenseInfo$
*/

#ifndef LL_LLNOTIFICATION_TEMPLATE_H
#define LL_LLNOTIFICATION_TEMPLATE_H

//#include <string>
//#include <list>
//#include <vector>
//#include <map>
//#include <set>
//#include <iomanip>
//#include <sstream>
//
//#include <boost/utility.hpp>
//#include <boost/shared_ptr.hpp>
//#include <boost/enable_shared_from_this.hpp>
//#include <boost/type_traits.hpp>
//
//// we want to minimize external dependencies, but this one is important
//#include "llsd.h"
//
//// and we need this to manage the notification callbacks
//#include "llevents.h"
//#include "llfunctorregistry.h"
//#include "llpointer.h"
#include "llinitparam.h"
//#include "llnotificationslistener.h"
//#include "llnotificationptr.h"
//#include "llcachename.h"
#include "llnotifications.h"


typedef boost::shared_ptr<LLNotificationForm> LLNotificationFormPtr;

// This is the class of object read from the XML file (notifications.xml, 
// from the appropriate local language directory).
struct LLNotificationTemplate
{
	struct GlobalString : public LLInitParam::Block<GlobalString>
	{
		Mandatory<std::string>	name,
								value;

		GlobalString()
		:	name("name"),
			value("value")
		{}
	};

	struct UniquenessContext : public LLInitParam::Block<UniquenessContext>
	{
		Mandatory<std::string>	value;

		UniquenessContext()
		:	value("value")
		{
			addSynonym(value, "key");
		}
		
	};

	struct UniquenessConstraint : public LLInitParam::Block<UniquenessConstraint>
	{
	private:
		// this idiom allows 
		// <notification> <unique/> </notification>
		// as well as
		// <notification> <unique> <context></context> </unique>...
		Flag			dummy_val;
	public:
		Multiple<UniquenessContext>	contexts;

		UniquenessConstraint()
		:	contexts("context"),
			dummy_val("")
		{}
	};

	// Templates are used to define common form types, such as OK/Cancel dialogs, etc.

	struct Template : public LLInitParam::Block<Template>
	{
		Mandatory<std::string>					name;
		Mandatory<LLNotificationForm::Params>	form;

		Template()
		:	name("name"),
			form("form")
		{}
	};

	// Reference a template to use its form elements
	struct TemplateRef : public LLInitParam::Block<TemplateRef>
	{
		Mandatory<std::string>	name;
		Optional<std::string>	yes_text,
								no_text,
								cancel_text,
								ignore_text;

		TemplateRef()
		:	name("name"),
			yes_text("yestext"),
			no_text("notext"),
			cancel_text("canceltext"),
			ignore_text("ignoretext")
		{}
	};

	struct URL : public LLInitParam::Block<URL>
	{
		Mandatory<S32>			option;
		Mandatory<std::string>	value;
		Optional<std::string>	target;
		Ignored					name;

		URL()
		:	option("option", -1),
			value("value"),
			target("target", "_blank"),
			name("name")
		{}
	};

	struct FormRef : public LLInitParam::Choice<FormRef>
	{
		Alternative<LLNotificationForm::Params>		form;
		Alternative<TemplateRef>					form_template;

		FormRef()
		:	form("form"),
			form_template("usetemplate")
		{}
	};

	struct Tag : public LLInitParam::Block<Tag>
	{
		Mandatory<std::string>	value;

		Tag()
		:	value("value")
		{}
	};

	struct Params : public LLInitParam::Block<Params>
	{
		Mandatory<std::string>			name;
		Optional<bool>					persist;
		Optional<std::string>			functor,
										icon,
										label,
										sound,
										type,
										value;
		Optional<U32>					duration;
		Optional<S32>					expire_option;
		Optional<URL>					url;
		Optional<UniquenessConstraint>	unique;
		Optional<FormRef>				form_ref;
		Optional<ENotificationPriority, 
			NotificationPriorityValues> priority;
		Multiple<Tag>		tags;


		Params()
		:	name("name"),
			persist("persist", false),
			functor("functor"),
			icon("icon"),
			label("label"),
			priority("priority"),
			sound("sound"),
			type("type"),
			value("value"),
			duration("duration"),
			expire_option("expireOption", -1),
			url("url"),
			unique("unique"),
			form_ref(""),
			tags("tag")
		{}

	};

	struct Notifications : public LLInitParam::Block<Notifications>
	{
		Multiple<GlobalString>	strings;
		Multiple<Template>		templates;
		Multiple<Params>		notifications;

		Notifications()
		:	strings("global"),
			notifications("notification"),
			templates("template")
		{}
	};

	LLNotificationTemplate(const Params& p);
    // the name of the notification -- the key used to identify it
    // Ideally, the key should follow variable naming rules 
    // (no spaces or punctuation).
    std::string mName;
    // The type of the notification
    // used to control which queue it's stored in
    std::string mType;
    // The text used to display the notification. Replaceable parameters
    // are enclosed in square brackets like this [].
    std::string mMessage;
	// The label for the notification; used for 
	// certain classes of notification (those with a window and a window title). 
	// Also used when a notification pops up underneath the current one.
	// Replaceable parameters can be used in the label.
	std::string mLabel;
	// The name of the icon image. This should include an extension.
	std::string mIcon;
    // This is the Highlander bit -- "There Can Be Only One"
    // An outstanding notification with this bit set
    // is updated by an incoming notification with the same name,
    // rather than creating a new entry in the queue.
    // (used for things like progress indications, or repeating warnings
    // like "the grid is going down in N minutes")
    bool mUnique;
    // if we want to be unique only if a certain part of the payload or substitutions args
	// are constant specify the field names for the payload. The notification will only be
    // combined if all of the fields named in the context are identical in the
    // new and the old notification; otherwise, the notification will be
    // duplicated. This is to support suppressing duplicate offers from the same
    // sender but still differentiating different offers. Example: Invitation to
    // conference chat.
    std::vector<std::string> mUniqueContext;
    // If this notification expires automatically, this value will be 
    // nonzero, and indicates the number of seconds for which the notification
    // will be valid (a teleport offer, for example, might be valid for 
    // 300 seconds). 
    U32 mExpireSeconds;
    // if the offer expires, one of the options is chosen automatically
    // based on its "value" parameter. This controls which one. 
    // If expireSeconds is specified, expireOption should also be specified.
    U32 mExpireOption;
    // if the notification contains a url, it's stored here (and replaced 
    // into the message where [_URL] is found)
    std::string mURL;
    // if there's a URL in the message, this controls which option visits
    // that URL. Obsolete this and eliminate the buttons for affected
    // messages when we allow clickable URLs in the UI
    U32 mURLOption;
	
	std::string mURLTarget;
	//This is a flag that tells if the url needs to open externally dispite 
	//what the user setting is.
	
	// does this notification persist across sessions? if so, it will be
	// serialized to disk on first receipt and read on startup
	bool mPersist;
	// This is the name of the default functor, if present, to be
	// used for the notification's callback. It is optional, and used only if 
	// the notification is constructed without an identified functor.
	std::string mDefaultFunctor;
	// The form data associated with a given notification (buttons, text boxes, etc)
    LLNotificationFormPtr mForm;
	// default priority for notifications of this type
	ENotificationPriority mPriority;
	// UUID of the audio file to be played when this notification arrives
	// this is loaded as a name, but looked up to get the UUID upon template load.
	// If null, it wasn't specified.
	LLUUID mSoundEffect;
	// List of tags that rules can match against.
	std::list<std::string> mTags;
};

#endif //LL_LLNOTIFICATION_TEMPLATE_H