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/**
* @file llscreenchannel.h
* @brief Class implements a channel on a screen in which appropriate toasts may appear.
*
* $LicenseInfo:firstyear=2003&license=viewergpl$
*
* 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_LLSCREENCHANNEL_H
#define LL_LLSCREENCHANNEL_H
#include "lltoast.h"
#include <map>
#include <boost/shared_ptr.hpp>
namespace LLNotificationsUI
{
typedef enum e_notification_toast_alignment
{
NA_TOP,
NA_CENTRE,
NA_BOTTOM,
} EToastAlignment;
typedef enum e_channel_alignment
{
CA_LEFT,
CA_CENTRE,
CA_RIGHT,
} EChannelAlignment;
/**
* Screen channel manages toasts visibility and positioning on the screen.
*/
class LLScreenChannel : public LLUICtrl
{
friend class LLChannelManager;
public:
LLScreenChannel(LLUUID& id);
virtual ~LLScreenChannel();
// Channel's outfit-functions
// update channel's size and position in the World View
void updatePositionAndSize(LLRect old_world_rect, LLRect new_world_rect);
// initialization of channel's shape and position
void init(S32 channel_left, S32 channel_right);
// set allignment of toasts inside a channel
void setToastAlignment(EToastAlignment align) {mToastAlignment = align;}
// set allignment of channel inside a world view
void setChannelAlignment(EChannelAlignment align) {mChannelAlignment = align;}
// set a template for a string in the OverflowToast
void setOverflowFormatString ( std::string str) { mOverflowFormatString = str; }
// Operating with toasts
// add a toast to a channel
void addToast(LLToast::Params p);
// kill or modify a toast by its ID
void killToastByNotificationID(LLUUID id);
void modifyToastByNotificationID(LLUUID id, LLPanel* panel);
// hide all toasts from screen, but not remove them from a channel
void hideToastsFromScreen();
// removes all toasts from a channel
void removeToastsFromChannel();
// show all toasts in a channel
void redrawToasts();
//
void loadStoredToastsToChannel();
// finds a toast among stored by its Notification ID and throws it on a screen to a channel
void loadStoredToastByNotificationIDToChannel(LLUUID id);
// removes a toast from stored finding it by its Notification ID
void removeStoredToastByNotificationID(LLUUID id);
// removes from channel all toasts that belongs to the certain IM session
void removeToastsBySessionID(LLUUID id);
// remove all storable toasts from screen and store them
void removeAndStoreAllStorableToasts();
// close the Overflow Toast
void closeOverflowToastPanel();
// close the StartUp Toast
void closeStartUpToast();
// Channel's behavior-functions
// set whether a channel will control hovering inside itself or not
void setControlHovering(bool control) { mControlHovering = control; }
// set Hovering flag for a channel
void setHovering(bool hovering) { mIsHovering = hovering; }
// set whether a channel will store faded toasts or not
void setCanStoreToasts(bool store) { mCanStoreToasts = store; }
// tell all channels that the StartUp toast was shown and allow them showing of toasts
static void setStartUpToastShown() { mWasStartUpToastShown = true; }
// get StartUp Toast's state
static bool getStartUpToastShown() { return mWasStartUpToastShown; }
// set mode for dislaying of toasts
void setDisplayToastsAlways(bool display_toasts) { mDisplayToastsAlways = display_toasts; }
// get mode for dislaying of toasts
bool getDisplayToastsAlways() { return mDisplayToastsAlways; }
// tell a channel to show toasts or not
void setShowToasts(bool show) { mShowToasts = show; }
// determine whether channel shows toasts or not
bool getShowToasts() { return mShowToasts; }
// let a channel update its ShowToast flag
void updateShowToastsState();
// Channel's other interface functions functions
// get number of hidden notifications from a channel
S32 getNumberOfHiddenToasts() { return mHiddenToastsNum;}
// update number of notifications in the StartUp Toast
void updateStartUpString(S32 num);
// get toast allignment preset for a channel
e_notification_toast_alignment getToastAlignment() {return mToastAlignment;}
// get ID of a channel
LLUUID getChannelID() { return mID; }
// Channel's signals
// signal on storing of faded toasts event
typedef boost::function<void (LLPanel* info_panel, const LLUUID id)> store_tost_callback_t;
typedef boost::signals2::signal<void (LLPanel* info_panel, const LLUUID id)> store_tost_signal_t;
store_tost_signal_t mOnStoreToast;
boost::signals2::connection setOnStoreToastCallback(store_tost_callback_t cb) { return mOnStoreToast.connect(cb); }
// signal on rejecting of a toast event
typedef boost::function<void (LLUUID id)> reject_tost_callback_t;
typedef boost::signals2::signal<void (LLUUID id)> reject_tost_signal_t;
reject_tost_signal_t mRejectToastSignal;
boost::signals2::connection setOnRejectToastCallback(reject_tost_callback_t cb) { return mRejectToastSignal.connect(cb); }
private:
struct ToastElem
{
LLUUID id;
LLToast* toast;
ToastElem(LLToast::Params p) : id(p.notif_id)
{
toast = new LLToast(p);
}
ToastElem(const ToastElem& toast_elem)
{
id = toast_elem.id;
toast = toast_elem.toast;
}
bool operator == (const LLUUID &id_op) const
{
return (id == id_op);
}
bool operator == (LLPanel* panel_op) const
{
return (toast == panel_op);
}
};
// Channel's handlers
void onToastHover(LLToast* toast, bool mouse_enter);
void onToastFade(LLToast* toast);
void onToastDestroyed(LLToast* toast);
void onOverflowToastHide();
void onStartUpToastHide();
//
void storeToast(ToastElem& toast_elem);
// send signal to observers about destroying of a toast, update channel's Hovering state, close the toast
void deleteToast(LLToast* toast);
// show-functions depending on allignment of toasts
void showToastsBottom();
void showToastsCentre();
void showToastsTop();
// create the Overflow Toast
void createOverflowToast(S32 bottom, F32 timer);
// create the StartUp Toast
void createStartUpToast(S32 notif_num, S32 bottom, F32 timer);
// Channel's flags
static bool mWasStartUpToastShown;
bool mControlHovering;
bool mIsHovering;
bool mCanStoreToasts;
bool mDisplayToastsAlways;
bool mOverflowToastHidden;
// controls whether a channel shows toasts or not
bool mShowToasts;
//
EToastAlignment mToastAlignment;
EChannelAlignment mChannelAlignment;
// attributes for the Overflow Toast
S32 mHiddenToastsNum;
LLToast* mOverflowToastPanel;
std::string mOverflowFormatString;
// attributes for the StartUp Toast
LLToast* mStartUpToastPanel;
// channel's ID
LLUUID mID;
// store a connection to prevent futher crash that is caused by sending a signal to a destroyed channel
boost::signals2::connection mWorldViewRectConnection;
std::vector<ToastElem> mToastList;
std::vector<ToastElem> mStoredToastList;
std::map<LLToast*, bool> mToastEventStack;
};
}
#endif
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