/**
 * @file llscriptfloater.h
 * @brief LLScriptFloater class definition
 *
 * $LicenseInfo:firstyear=2009&license=viewerlgpl$
 * 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_SCRIPTFLOATER_H
#define LL_SCRIPTFLOATER_H

#include "lltransientdockablefloater.h"
#include "llnotificationptr.h"

class LLToastPanel;

/**
 * Handles script notifications ("ScriptDialog" and "ScriptDialogGroup")
 * and manages Script Floaters.
 */
class LLScriptFloaterManager : public LLSingleton<LLScriptFloaterManager>
{
    // *TODO
    // LLScriptFloaterManager and LLScriptFloater will need some refactoring after we
    // know how script notifications should look like.
    LLSINGLETON(LLScriptFloaterManager);
public:

    typedef enum e_object_type
    {
        OBJ_SCRIPT,
        OBJ_GIVE_INVENTORY,
        OBJ_LOAD_URL,

        OBJ_UNKNOWN
    }EObjectType;

    typedef enum e_limitation_type
    {
        SCRIPT_PER_OBJECT = 0,
        SCRIPT_PER_CHANNEL = 1,
        SCRIPT_ATTACHMENT_PER_CHANNEL,
        SCRIPT_HUD_PER_CHANNEL,
        SCRIPT_HUD_UNCONSTRAINED
    }ELimitationType;

    /**
     * Handles new notifications.
     * Saves notification and object ids, removes old notification if needed, creates script chiclet
     * Note that one object can spawn one script floater.
     */
    void onAddNotification(const LLUUID& notification_id);

    /**
     * Removes notification.
     */
    void removeNotification(const LLUUID& notification_id);

    /**
     * Handles notification removal.
     * Removes script notification toast, removes script chiclet, closes script floater
     */
    void onRemoveNotification(const LLUUID& notification_id);

    /**
     * Toggles script floater.
     * Removes "new message" icon from chiclet and removes notification toast.
     */
    void toggleScriptFloater(const LLUUID& object_id, bool set_new_message = false);

    LLUUID findObjectId(const LLUUID& notification_id);

    LLUUID findNotificationId(const LLUUID& object_id);

    static EObjectType getObjectType(const LLUUID& notification_id);

    static std::string getObjectName(const LLUUID& notification_id);

    typedef boost::signals2::signal<void(const LLSD&)> object_signal_t;

    boost::signals2::connection addNewObjectCallback(const object_signal_t::slot_type& cb) { return mNewObjectSignal.connect(cb); }
    boost::signals2::connection addToggleObjectFloaterCallback(const object_signal_t::slot_type& cb) { return mToggleFloaterSignal.connect(cb); }

    struct FloaterPositionInfo
    {
        LLRect mRect;
        bool mDockState;
    };

    void saveFloaterPosition(const LLUUID& object_id, const FloaterPositionInfo& fpi);

    bool getFloaterPosition(const LLUUID& object_id, FloaterPositionInfo& fpi);

    void setFloaterVisible(const LLUUID& notification_id, bool visible);

protected:

    /**
     * Removes all script-dialog notifications
     */
    static void clearScriptNotifications();

    typedef std::map<std::string, EObjectType> object_type_map;

    static object_type_map initObjectTypeMap();

    // <notification_id, object_id>
    typedef std::map<LLUUID, LLUUID> script_notification_map_t;

    script_notification_map_t::const_iterator findUsingObjectId(const LLUUID& object_id);
    script_notification_map_t::const_iterator findUsingObjectIdAndChannel(const LLUUID& object_id, S32 im_channel);

private:

    script_notification_map_t mNotifications;

    object_signal_t mNewObjectSignal;
    object_signal_t mToggleFloaterSignal;

    // <object_id, floater position>
    typedef std::map<LLUUID, FloaterPositionInfo> floater_position_map_t;

    floater_position_map_t mFloaterPositions;
    boost::signals2::connection mDialogLimitationsSlot;
};

/**
 * Floater script forms.
 * LLScriptFloater will create script form based on notification data and
 * will auto fit the form.
 */
class LLScriptFloater : public LLDockableFloater
{
public:

    /**
     * key - UUID of scripted Object
     */
    LLScriptFloater(const LLSD& key);

    virtual ~LLScriptFloater(){};

    /**
     * Toggle existing floater or create and show a new one.
     */
    static bool toggle(const LLUUID& object_id);

    /**
     * Creates and shows floater
     */
    static LLScriptFloater* show(const LLUUID& object_id);

    const LLUUID& getNotificationId() { return mNotificationId; }

    void setNotificationId(const LLUUID& id);

    /**
     * Close notification if script floater is closed.
     */
    /*virtual*/ void onClose(bool app_quitting);

    /**
     * Hide all notification toasts when we show dockable floater
     */
    /*virtual*/ void setDocked(bool docked, bool pop_on_undock = true);

    /**
     * Hide all notification toasts when we show dockable floater
     */
    /*virtual*/ void setVisible(bool visible);

    bool getSavePosition() { return mSaveFloaterPosition; }

    void setSavePosition(bool save) { mSaveFloaterPosition = save; }

    void savePosition();

    void restorePosition();

protected:

    /**
     * Creates script form, will delete old form if floater is shown for same object.
     */
    void createForm(const LLUUID& object_id);

    /**
     * Hide all notification toasts.
     */
    static void hideToastsIfNeeded();

    /**
     * Removes chiclets new messages icon
     */
    void onMouseDown();

    /*virtual*/ void onFocusLost();

    /*virtual*/ void onFocusReceived();

    void dockToChiclet(bool dock);

private:
    bool isScriptTextbox(LLNotificationPtr notification);

    LLToastPanel* mScriptForm;
    LLUUID mNotificationId;
    LLUUID mObjectId;
    bool mSaveFloaterPosition;
};

#endif //LL_SCRIPTFLOATER_H