// Copyright (c) IPython Development Team.
// Distributed under the terms of the Modified BSD License.

define([
    'base/js/namespace',
    'jquery',
], function(IPython, $) {
    "use strict";

    /**
     * A generic toolbar on which one can add button
     * @class ToolBar
     * @constructor
     * @param {Dom object} selector
     */
    var ToolBar = function (selector, layout_manager) {
        this.selector = selector;
        this.layout_manager = layout_manager;
        if (this.selector !== undefined) {
            this.element = $(selector);
            this.style();
        }
    };

    /**
     *  add a group of button into the current toolbar.
     *
     *
     *  @example
     *
     *      IPython.toolbar.add_buttons_group([
     *          {
     *            label:'my button',
     *            icon:'icon-hdd',
     *            callback:function(){alert('hoho')},
     *            id : 'my_button_id',    // this is optional
     *          },
     *          {
     *            label:'my second button',
     *            icon:'icon-play',
     *            callback:function(){alert('be carefull I cut')}
     *          }
     *        ],
     *        "my_button_group_id"
     *      )
     *
     *  @method add_buttons_group
     *  @param list {List}
     *      List of button of the group, with the following paramter for each :
     *      @param list.label {string} text to show on button hover
     *      @param list.icon {string} icon to choose from [Font Awesome](http://fortawesome.github.io/Font-Awesome)
     *      @param list.callback {function} function to be called on button click
     *      @param [list.id] {String} id to give to the button
     *  @param [group_id] {String} optionnal id to give to the group
     *
     */
    ToolBar.prototype.add_buttons_group = function (list, group_id) {
        var btn_group = $('<div/>').addClass("btn-group");
        if( group_id !== undefined ) {
            btn_group.attr('id',group_id);
        }
        var el;
        for(var i=0; i < list.length; i++) {
            el = list[i];
            var button  = $('<button/>')
                .addClass('btn btn-default')
                .attr("title", el.label)
                .append(
                    $("<i/>").addClass(el.icon).addClass('fa')
                );
            var id = el.id;
            if( id !== undefined )
                button.attr('id',id);
            var fun = el.callback;
            button.click(fun);
            btn_group.append(button);
        }
        $(this.selector).append(btn_group);
    };

    ToolBar.prototype.style = function () {
        this.element.addClass('toolbar');
    };

    /**
     * Show and hide toolbar
     * @method toggle
     */
    ToolBar.prototype.toggle = function () {
        this.element.toggle();
        if (this.layout_manager !== undefined) {
            this.layout_manager.do_resize();
        }
    };

    // Backwards compatibility.
    IPython.ToolBar = ToolBar;

    return {'ToolBar': ToolBar};
});