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/**
* @file llnotificationhandler.h
* @brief Here are implemented Notification Handling Classes.
*
* $LicenseInfo:firstyear=2003&license=viewergpl$
*
* Copyright (c) 2003-2009, 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.
* $/LicenseInfo$
*/
#ifndef LL_LLNOTIFICATIONHANDLER_H
#define LL_LLNOTIFICATIONHANDLER_H
#include "llwindow.h"
#include "llnotifications.h"
#include "llchannelmanager.h"
#include "llchat.h"
namespace LLNotificationsUI
{
// ENotificationType enumerates all possible types of notifications that could be met
//
typedef enum e_notification_type
{
NT_NOTIFY,
NT_NOTIFYTIP,
NT_GROUPNOTIFY,
NT_IMCHAT,
NT_GROUPCHAT,
NT_NEARBYCHAT,
NT_ALERT,
NT_ALERTMODAL
} ENotificationType;
/**
* Handler of notification events.
* This handler manages events related to toasts and chicklets. This is base class
* for chat and system notification handlers.
*/
// LLEventHandler is a base class that specifies a common interface for all
// notification handlers. It states, that every handler must react on the follofing
// events:
// - deleting of a toast;
// - initialization of a corresponding channel;
// Also every handler must have the following attributes:
// - type of the notification that this handler is responsible to;
// - pointer to a correspondent screen channel, in which all toasts of the handled notification's
// type should be displayed
// This class also provides the following signald:
// - increment counter signal
// - decrement counter signal
// - update counter signal
// - signal, that emits ID of the notification that is being processed
//
class LLEventHandler
{
public:
virtual ~LLEventHandler() {};
// callbacks for counters
typedef boost::function<void (void)> notification_callback_t;
typedef boost::signals2::signal<void (void)> notification_signal_t;
notification_signal_t mNewNotificationSignal;
notification_signal_t mDelNotificationSignal;
boost::signals2::connection setNewNotificationCallback(notification_callback_t cb) { return mNewNotificationSignal.connect(cb); }
boost::signals2::connection setDelNotification(notification_callback_t cb) { return mDelNotificationSignal.connect(cb); }
// callback for notification/toast
typedef boost::function<void (const LLUUID id)> notification_id_callback_t;
typedef boost::signals2::signal<void (const LLUUID id)> notification_id_signal_t;
notification_id_signal_t mNotificationIDSignal;
boost::signals2::connection setNotificationIDCallback(notification_id_callback_t cb) { return mNotificationIDSignal.connect(cb); }
protected:
virtual void onDeleteToast(LLToast* toast)=0;
// arrange handler's channel on a screen
// is necessary to unbind a moment of creation of a channel and a moment of positioning of it
// it is useful when positioning depends on positions of other controls, that could not be created
// at the moment, when a handlers creates a channel.
virtual void initChannel()=0;
LLScreenChannelBase* mChannel;
e_notification_type mType;
};
// LLSysHandler and LLChatHandler are more specific base classes
// that divide all notification handlers on to groups:
// - handlers for different system notifications (script dialogs, tips, group notices, alerts and IMs);
// - handlers for different messaging notifications (nearby chat)
/**
* Handler for system notifications.
*/
class LLSysHandler : public LLEventHandler
{
public:
virtual ~LLSysHandler() {};
virtual bool processNotification(const LLSD& notify)=0;
};
/**
* Handler for chat message notifications.
*/
class LLChatHandler : public LLEventHandler
{
public:
virtual ~LLChatHandler() {};
virtual void processChat(const LLChat& chat_msg)=0;
};
/**
* Handler for IM notifications.
* It manages life time of IMs, group messages.
*/
class LLIMHandler : public LLSysHandler
{
public:
LLIMHandler(e_notification_type type, const LLSD& id);
virtual ~LLIMHandler();
// base interface functions
virtual bool processNotification(const LLSD& notify);
protected:
virtual void onDeleteToast(LLToast* toast);
virtual void initChannel();
};
/**
* Handler for system informational notices.
* It manages life time of tip notices.
*/
class LLTipHandler : public LLSysHandler
{
public:
LLTipHandler(e_notification_type type, const LLSD& id);
virtual ~LLTipHandler();
// base interface functions
virtual bool processNotification(const LLSD& notify);
protected:
virtual void onDeleteToast(LLToast* toast);
virtual void initChannel();
};
/**
* Handler for system informational notices.
* It manages life time of script notices.
*/
class LLScriptHandler : public LLSysHandler
{
public:
LLScriptHandler(e_notification_type type, const LLSD& id);
virtual ~LLScriptHandler();
// base interface functions
virtual bool processNotification(const LLSD& notify);
protected:
virtual void onDeleteToast(LLToast* toast);
virtual void initChannel();
// own handlers
void onRejectToast(LLUUID& id);
};
/**
* Handler for group system notices.
*/
class LLGroupHandler : public LLSysHandler
{
public:
LLGroupHandler(e_notification_type type, const LLSD& id);
virtual ~LLGroupHandler();
// base interface functions
virtual bool processNotification(const LLSD& notify);
protected:
virtual void onDeleteToast(LLToast* toast);
virtual void initChannel();
};
/**
* Handler for alert system notices.
*/
class LLAlertHandler : public LLSysHandler
{
public:
LLAlertHandler(e_notification_type type, const LLSD& id);
virtual ~LLAlertHandler();
void setAlertMode(bool is_modal) { mIsModal = is_modal; }
// base interface functions
virtual bool processNotification(const LLSD& notify);
protected:
virtual void onDeleteToast(LLToast* toast);
virtual void initChannel();
bool mIsModal;
};
}
#endif
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