# Source: togglePanel.js

    /*
     * JBoss, Home of Professional Open Source
     * Copyright ${year}, Red Hat, Inc. and individual contributors
     * by the @authors tag. See the copyright.txt in the distribution for a
     * full listing of individual contributors.
     *
     * This 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; either version 2.1 of
     * the License, or (at your option) any later version.
     *
     * This software 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 software; if not, write to the Free
     * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
     * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
     */

    (function ($, rf) {

        rf.ui = rf.ui || {};

        /* SIMPLE INNER CLASS for handle switch operation*/
        function SwitchItems(comp) {
            this.comp = comp;
        }

        SwitchItems.prototype = {

            /**
             * @param {TogglePanelItem} oldPanel
             * @param {TogglePanelItem} newPanel
             *
             * @return {void}
             * */
            exec : function (oldPanel, newPanel) {
                if (newPanel.switchMode == "server") {
                    return this.execServer(oldPanel, newPanel);
                } else if (newPanel.switchMode == "ajax") {
                    return this.execAjax(oldPanel, newPanel);
                } else if (newPanel.switchMode == "client") {
                    return this.execClient(oldPanel, newPanel);
                } else {
                    rf.log.error("SwitchItems.exec : unknown switchMode (" + this.comp.switchMode + ")");
                }
            },

            /**
             * @protected
             * @param {TogglePanelItem} oldPanel
             * @param {TogglePanelItem} newPanel
             *
             * @return {Boolean} false
             * */
            execServer : function (oldPanel, newPanel) {
                if (oldPanel) {
                    var continueProcess = oldPanel.__leave();
                    if (!continueProcess) {
                        return false;
                    }
                }

                this.__setActiveItem(newPanel.getName());

                rf.submitForm(this.__getParentForm());

                return false;
            },

            /**
             * @protected
             * @param {TogglePanelItem} oldPanel
             * @param {TogglePanelItem} newPanel
             *
             * @return {Boolean} false
             * */
            execAjax : function (oldPanel, newPanel) {
                var options = $.extend({}, this.comp.options["ajax"], {}/*this.getParameters(newPanel)*/);

                this.__setActiveItem(newPanel.getName());
                rf.ajax(this.comp.id, null, options);

                if (oldPanel) {
                    this.__setActiveItem(oldPanel.getName());
                }

                return false;
            },

            /**
             * @protected
             * @param {TogglePanelItem} oldPanel
             * @param {TogglePanelItem} newPanel
             *
             * @return {undefined}
             *             - false - if process has been terminated
             *             - true  - in other cases
             * */
            execClient : function (oldPanel, newPanel) {
                if (oldPanel) {
                    var continueProcess = oldPanel.__leave();
                    if (!continueProcess) {
                        return false;
                    }
                }

                this.__setActiveItem(newPanel.getName());

                newPanel.__enter();
                this.comp.__fireItemChange(oldPanel, newPanel);

                return true;
            },

            /**
             * @private
             * */
            __getParentForm : function () {
                return $(rf.getDomElement(this.comp.id)).parents('form:first');
            },

            /**
             * @private
             * */
            __setActiveItem : function (name) {
                rf.getDomElement(this.__getValueInputId()).value = name;
                this.comp.activeItem = name;
            },

            /**
             * @private
             * */
            __getValueInputId: function () {
                return this.comp.id + "-value"
            }
        };

        /**
         * @class TogglePanel
         * @name TogglePanel
         *
         * @constructor
         * @param {String} componentId - component id
         * @param {Hash} options - params
         * */
        rf.ui.TogglePanel = rf.BaseComponent.extendClass({

                // class name
                name:"TogglePanel",

                init : function (componentId, options) {
                    $super.constructor.call(this, componentId);
                    this.attachToDom();

                    this.items = [];

                    this.options = $.extend(this.options, options || {});
                    this.activeItem = this.options.activeItem;

                    this.__addUserEventHandler("itemchange");
                    this.__addUserEventHandler("beforeitemchange");
                },

                /***************************** Public Methods  ****************************************************************/

                /**
                 * @methodOf
                 *
                 * @name TogglePanel#getSelectItem
                 *
                 * @return {String} name of current selected panel item
                 */
                getSelectItem: function () {
                    return this.activeItem;
                },

                /**
                 * @methodOf
                 * @name TogglePanel#switchToItem
                 *
                 * @param {String} name - panel item name to switch
                 *           we can use meta names @first, @prev, @next and @last
                 * @return {Boolean} - false if something wrong and true if all is ok
                 */
                switchToItem: function (name) {
                    var newPanel = this.getNextItem(name);
                    if (newPanel == null) {
                        rf.log.warn("TogglePanel.switchToItems(" + name + "): item with name '" + name + "' not found");
                        return false;
                    }

                    var oldPanel = this.__getItemByName(this.getSelectItem());

                    var continueProcess = this.__fireBeforeItemChange(oldPanel, newPanel);
                    if (!continueProcess) {
                        rf.log.warn("TogglePanel.switchToItems(" + name + "): switch has been canceled by beforeItemChange event");
                        return false
                    }

                    return this.__itemsSwitcher().exec(oldPanel, newPanel);
                },

                /**
                 * @methodOf
                 * @name TogglePanel#getNextItem
                 *
                 * @param {String} name of TogglePanelItem or meta name (@first | @prev | @next | @last)
                 * @return {TogglePanelItem} null if item not found
                 */
                getNextItem : function (name) {
                    if (name) {
                        var newItemIndex = this.__ITEMS_META_NAMES[name];
                        if (newItemIndex) {
                            return this.__getItem(newItemIndex(this));
                        } else {
                            return this.__getItemByName(name);
                        }
                    } else {
                        return this.__getItemByName(this.nextItem());
                    }
                },

                /**
                 * please, remove this method when client side ajax events will be added
                 *
                 * */
                onCompleteHandler : function (newItemName) {
                    var oldItem = this.__getItemByName(this.activeItem);
                    var newItem = this.__getItemByName(newItemName);

                    // Don't do like this and remove it ASAP
                    this.__itemsSwitcher().execClient(oldItem, newItem);
                    $(document.getElementById(newItem.getTogglePanel().id)).trigger("resize");
                },

                /**
                 * @methodOf
                 * @name TogglePanel#getItems
                 *
                 * @return {TogglePanelItem[]} all defined panel items
                 */
                getItems : function () {
                    return this.items;
                },

                /**
                 * @methodOf
                 * @name TogglePanel#getItemsNames
                 *
                 * @return {String[]} names of all defined items
                 */
                getItemsNames: function () {
                    var res = [];
                    for (var i = 0; i < this.items.length; i++) {
                        res.push(this.items[i].getName());
                    }

                    return res;
                },

                /**
                 * @methodOf
                 * @name TogglePanel#nextItem
                 *
                 * @param {String} [itemName = activeItem]
                 * @return {String} name of next panel item
                 */
                nextItem: function (itemName) {
                    var itemIndex = this.__getItemIndex(itemName || this.activeItem);
                    if (itemIndex == -1) {
                        return null;
                    }

                    return this.__getItemName(itemIndex + 1);
                },

                /**
                 * @methodOf
                 * @name TogglePanel#firstItem
                 *
                 * @return {String} name of first panel item
                 */
                firstItem: function () {
                    return this.__getItemName(0);
                },

                /**
                 * @methodOf
                 * @name TogglePanel#lastItem
                 *
                 * @return {String} name of last panel item
                 */
                lastItem: function () {
                    return this.__getItemName(this.items.length - 1);
                },

                /**
                 * @methodOf
                 * @name TogglePanel#prevItem
                 *
                 * @param {String} itemName
                 * @return {String} name of prev panel item
                 *                  null if it is first item
                 */
                prevItem: function (itemName) {
                    var itemIndex = this.__getItemIndex(itemName || this.activeItem);
                    if (!this.options.cycledSwitching && itemIndex < 1) {
                        return null;
                    }

                    return this.__getItemName(itemIndex - 1);
                },

                /////////////////////////////////////////////////////////////////////////////////
                //// Private
                /////////////////////////////////////////////////////////////////////////////////

                /********************* Methods *************************/

                __itemsSwitcher : function () {
                    return new SwitchItems(this);
                },

                __ITEMS_META_NAMES : (function () {
                    function goFrom(comp, ind, step) {
                        var res = ind;
                        while ((!comp.items[res] || comp.items[res].disabled) && res < comp.items.length && res > 0) {
                            res += step;
                        }
                        return res;
                    }

                    return {
                        "@first" : function (comp) {
                            return goFrom(comp, 0, 1);
                        },

                        "@prev"  : function (comp) {
                            return goFrom(comp, parseInt(comp.__getItemIndex(comp.activeItem)) - 1, -1);
                        },

                        "@next"  : function (comp) {
                            return goFrom(comp, parseInt(comp.__getItemIndex(comp.activeItem)) + 1, 1);
                        },

                        "@last"  : function (comp) {
                            return goFrom(comp, comp.items.length - 1, -1);
                        }
                    }
                })(),

                /**
                 * @private
                 * */
                __getItemIndex : function (itemName) {
                    var item;
                    for (var i = 0; i < this.items.length; i++) {
                        item = this.items[i];
                        if (!item.disabled && item.getName() === itemName) {
                            return i;
                        }
                    }

                    rf.log.info("TogglePanel.getItemIndex: item with name '" + itemName + "' not found");
                    return -1;
                },

                /**
                 * @private
                 * */
                __addUserEventHandler : function (name) {
                    var handler = this.options["on" + name];
                    if (handler) {
                        rf.Event.bindById(this.id, name, handler);
                    }
                },

                /**
                 * @private
                 * @param {Number} index - array index
                 *
                 * @return {TogglePanelItem}
                 *    null - if item not found
                 * */
                __getItem : function (index) {
                    if (this.options.cycledSwitching) {
                        var size = this.items.length;
                        return this.items[(size + index) % size]
                    } else if (index >= 0 && index < this.items.length) {
                        return this.items[index]
                    } else {
                        return null;
                    }
                },

                __getItemByName : function (name) {
                    return this.__getItem(this.__getItemIndex(name));
                },

                __getItemName : function (index) {
                    var item = this.__getItem(index);
                    if (item == null) {
                        return null;
                    }

                    return item.getName();
                },

                /**
                 * Fire Concealable Event
                 * */

                __fireItemChange : function (oldItem, newItem) {
                    return new rf.Event.fireById(this.id, "itemchange", {
                            id: this.id,
                            oldItem : oldItem,
                            newItem : newItem
                        });
                },

                __fireBeforeItemChange : function (oldItem, newItem) {
                    return rf.Event.fireById(this.id, "beforeitemchange", {
                            id: this.id,
                            oldItem : oldItem,
                            newItem : newItem
                        });
                }
            });

        // define super class link
        var $super = rf.ui.TogglePanel.$super;
    })(RichFaces.jQuery, RichFaces);