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/*!
 * Deluge.Plugin.js
 * 
 * Copyright (c) Damien Churchill 2009-2010 <damoxc@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3, or (at your option)
 * any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, write to:
 *     The Free Software Foundation, Inc.,
 *     51 Franklin Street, Fifth Floor
 *     Boston, MA  02110-1301, USA.
 *
 * In addition, as a special exception, the copyright holders give
 * permission to link the code of portions of this program with the OpenSSL
 * library.
 * You must obey the GNU General Public License in all respects for all of
 * the code used other than OpenSSL. If you modify file(s) with this
 * exception, you may extend this exception to your version of the file(s),
 * but you are not obligated to do so. If you do not wish to do so, delete
 * this exception statement from your version. If you delete this exception
 * statement from all source files in the program, then also delete it here.
 */
Ext.ns('Deluge');

/**
 * @class Deluge.Plugin
 * @extends Ext.util.Observable
 */
Deluge.Plugin = Ext.extend(Ext.util.Observable, {

    /**
     * The plugins name
     * @property name
     * @type {String}
     */
    name: null,

    constructor: function(config) {
        this.isDelugePlugin = true;
        this.addEvents({
            /**
             * @event enabled
             * @param {Plugin} plugin the plugin instance
             */
            "enabled": true,

            /**
             * @event disabled
             * @param {Plugin} plugin the plugin instance
             */
            "disabled": true
        });
        Deluge.Plugin.superclass.constructor.call(this, config);
    },
    
    /**
     * Disables the plugin, firing the "{@link #disabled}" event and
     * then executing the plugins clean up method onDisabled.
     */
    disable: function() {
        this.fireEvent("disabled", this);
        if (this.onDisable) this.onDisable();
    },
    
    /**
     * Enables the plugin, firing the "{@link #enabled}" event and
     * then executes the plugins setup method, onEnabled.
     */
    enable: function() {
        this.fireEvent("enable", this);
        if (this.onEnable) this.onEnable();
    },

    registerTorrentStatus: function(key, header, options) {
        options = options || {};
        var cc = options.colCfg || {}, sc = options.storeCfg || {};
        sc = Ext.apply(sc, {name: key});
        deluge.torrents.meta.fields.push(sc);
        deluge.torrents.getStore().reader.onMetaChange(deluge.torrents.meta);

        cc = Ext.apply(cc, {
            header: header,
            dataIndex: key
        });
        var cols = deluge.torrents.columns.slice(0);
        cols.push(cc);
        deluge.torrents.colModel.setConfig(cols);
        deluge.torrents.columns = cols;

        Deluge.Keys.Grid.push(key);
        deluge.torrents.getView().refresh(true);
    },

    deregisterTorrentStatus: function(key) {
        var fields = [];
        Ext.each(deluge.torrents.meta.fields, function(field) {
            if (field.name != key) fields.push(field);
        });
        deluge.torrents.meta.fields = fields;
        deluge.torrents.getStore().reader.onMetaChange(deluge.torrents.meta);

        var cols = [];
        Ext.each(deluge.torrents.columns, function(col) {
            if (col.dataIndex != key) cols.push(col);
        });
        deluge.torrents.colModel.setConfig(cols);
        deluge.torrents.columns = cols;

        var keys = [];
        Ext.each(Deluge.Keys.Grid, function(k) {
            if (k == key) keys.push(k);
        });
        Deluge.Keys.Grid = keys;
        deluge.torrents.getView().refresh(true);
    }
});

Ext.ns('Deluge.plugins');