{"version":3,"file":"showadvanced.min.js","sources":["https:\/\/biblestudydata.com\/moodle\/lib\/form\/amd\/src\/showadvanced.js"],"sourcesContent":["\/\/ This file is part of Moodle - http:\/\/moodle.org\/\n\/\/\n\/\/ Moodle is free software: you can redistribute it and\/or modify\n\/\/ it under the terms of the GNU General Public License as published by\n\/\/ the Free Software Foundation, either version 3 of the License, or\n\/\/ (at your option) any later version.\n\/\/\n\/\/ Moodle is distributed in the hope that it will be useful,\n\/\/ but WITHOUT ANY WARRANTY; without even the implied warranty of\n\/\/ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n\/\/ GNU General Public License for more details.\n\/\/\n\/\/ You should have received a copy of the GNU General Public License\n\/\/ along with Moodle.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n\n\/**\n * A class to help show and hide advanced form content.\n *\n * @module     core_form\/showadvanced\n * @copyright  2016 Damyon Wiese <damyon@moodle.com>\n * @license    http:\/\/www.gnu.org\/copyleft\/gpl.html GNU GPL v3 or later\n *\/\ndefine(['jquery', 'core\/log', 'core\/str', 'core\/notification'], function($, Log, Strings, Notification) {\n\n    var SELECTORS = {\n            FIELDSETCONTAINSADVANCED: 'fieldset.containsadvancedelements',\n            DIVFITEMADVANCED: 'div.fitem.advanced',\n            DIVADVANCEDSECTION: 'div#form-advanced-div',\n            DIVFCONTAINER: 'div.fcontainer',\n            MORELESSLINK: 'fieldset.containsadvancedelements .moreless-toggler'\n        },\n        CSS = {\n            SHOW: 'show',\n            MORELESSACTIONS: 'moreless-actions',\n            MORELESSTOGGLER: 'moreless-toggler',\n            SHOWLESS: 'moreless-less'\n        },\n        WRAPPERS = {\n            FITEM: '<div class=\"fitem\"><\/div>',\n            FELEMENT: '<div class=\"felement\"><\/div>',\n            ADVANCEDDIV: '<div id=\"form-advanced-div\"><\/div>'\n        },\n        IDPREFIX = 'showadvancedid-';\n\n    \/** @property {Integer} uniqIdSeed Auto incrementing number used to generate ids. *\/\n    var uniqIdSeed = 0;\n\n    \/**\n     * ShowAdvanced behaviour class.\n     *\n     * @class core_form\/showadvanced\n     * @param {String} id The id of the form.\n     *\/\n    var ShowAdvanced = function(id) {\n        this.id = id;\n\n        var form = $(document.getElementById(id));\n        this.enhanceForm(form);\n    };\n\n    \/** @property {String} id The form id to enhance. *\/\n    ShowAdvanced.prototype.id = '';\n\n    \/**\n     * @method enhanceForm\n     * @param {JQuery} form JQuery selector representing the form\n     * @return {ShowAdvanced}\n     *\/\n    ShowAdvanced.prototype.enhanceForm = function(form) {\n        var fieldsets = form.find(SELECTORS.FIELDSETCONTAINSADVANCED);\n\n        \/\/ Enhance each fieldset in the form matching the selector.\n        fieldsets.each(function(index, item) {\n            this.enhanceFieldset($(item));\n        }.bind(this));\n\n        \/\/ Attach some event listeners.\n        \/\/ Subscribe more\/less links to click event.\n        form.on('click', SELECTORS.MORELESSLINK, this.switchState);\n\n        \/\/ Subscribe to key events but filter for space or enter.\n        form.on('keydown', SELECTORS.MORELESSLINK, function(e) {\n            \/\/ Enter or space.\n            if (e.which == 13 || e.which == 32) {\n                return this.switchState(e);\n            }\n            return true;\n        }.bind(this));\n        return this;\n    };\n\n\n    \/**\n     * Generates a uniq id for the dom element it's called on unless the element already has an id.\n     * The id is set on the dom node before being returned.\n     *\n     * @method generateId\n     * @param {JQuery} node JQuery selector representing a single DOM Node.\n     * @return {String}\n     *\/\n    ShowAdvanced.prototype.generateId = function(node) {\n        var id = node.prop('id');\n        if (typeof id === 'undefined') {\n            id = IDPREFIX + (uniqIdSeed++);\n            node.prop('id', id);\n        }\n        return id;\n    };\n\n    \/**\n     * @method enhanceFieldset\n     * @param {JQuery} fieldset JQuery selector representing a fieldset\n     * @return {ShowAdvanced}\n     *\/\n    ShowAdvanced.prototype.enhanceFieldset = function(fieldset) {\n        var statuselement = $('input[name=mform_showmore_' + fieldset.prop('id') + ']');\n        if (!statuselement.length) {\n            Log.debug(\"M.form.showadvanced::processFieldset was called on an fieldset without a status field: '\" +\n                fieldset.prop('id') + \"'\");\n            return this;\n        }\n\n        \/\/ Fetch some strings.\n        Strings.get_strings([{\n            key: 'showmore',\n            component: 'core_form'\n        }, {\n            key: 'showless',\n            component: 'core_form'\n        }]).then(function(results) {\n            var showmore = results[0],\n                showless = results[1];\n\n            \/\/ Generate more\/less links.\n            var morelesslink = $('<a href=\"#\"><\/a>');\n            morelesslink.addClass(CSS.MORELESSTOGGLER);\n            if (statuselement.val() === '0') {\n                morelesslink.html(showmore);\n                morelesslink.attr('aria-expanded', 'false');\n            } else {\n                morelesslink.html(showless);\n                morelesslink.attr('aria-expanded', 'true');\n                morelesslink.addClass(CSS.SHOWLESS);\n                fieldset.find(SELECTORS.DIVFITEMADVANCED).addClass(CSS.SHOW);\n            }\n            \/\/ Build a list of advanced fieldsets.\n            var idlist = [];\n            fieldset.find(SELECTORS.DIVFITEMADVANCED).each(function(index, node) {\n                idlist[idlist.length] = this.generateId($(node));\n            }.bind(this));\n\n            \/\/ Set aria attributes.\n            morelesslink.attr('role', 'button');\n            morelesslink.attr('aria-controls', 'form-advanced-div');\n\n            var formadvancedsection = $(WRAPPERS.ADVANCEDDIV);\n            fieldset.find(SELECTORS.DIVFITEMADVANCED).wrapAll(formadvancedsection);\n            \/\/ Add elements to the DOM.\n            var fitem = $(WRAPPERS.FITEM);\n            fitem.addClass(CSS.MORELESSACTIONS);\n            var felement = $(WRAPPERS.FELEMENT);\n            felement.append(morelesslink);\n            fitem.append(felement);\n\n            fieldset.find(SELECTORS.DIVADVANCEDSECTION).before(fitem);\n            return true;\n        }.bind(this)).fail(Notification.exception);\n\n        return this;\n    };\n\n    \/**\n     * @method switchState\n     * @param {Event} e Event that triggered this action.\n     * @return {Boolean}\n     *\/\n    ShowAdvanced.prototype.switchState = function(e) {\n        e.preventDefault();\n\n        \/\/ Fetch some strings.\n        Strings.get_strings([{\n            key: 'showmore',\n            component: 'core_form'\n        }, {\n            key: 'showless',\n            component: 'core_form'\n        }]).then(function(results) {\n            var showmore = results[0],\n                showless = results[1],\n                fieldset = $(e.target).closest(SELECTORS.FIELDSETCONTAINSADVANCED);\n\n            \/\/ Toggle collapsed class.\n            fieldset.find(SELECTORS.DIVFITEMADVANCED).toggleClass(CSS.SHOW);\n\n            \/\/ Get corresponding hidden variable.\n            var statuselement = $('input[name=mform_showmore_' + fieldset.prop('id') + ']');\n\n            \/\/ Invert it and change the link text.\n            if (statuselement.val() === '0') {\n                statuselement.val(1);\n                $(e.target).addClass(CSS.SHOWLESS);\n                $(e.target).html(showless);\n                $(e.target).attr('aria-expanded', 'true');\n            } else {\n                statuselement.val(0);\n                $(e.target).removeClass(CSS.SHOWLESS);\n                $(e.target).html(showmore);\n                $(e.target).attr('aria-expanded', 'false');\n            }\n            return true;\n        }).fail(Notification.exception);\n\n        return this;\n    };\n\n    return {\n        \/**\n         * Initialise this module.\n         * @method init\n         * @param {String} formid\n         * @return {ShowAdvanced}\n         *\/\n        init: function(formid) {\n            return new ShowAdvanced(formid);\n        }\n    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