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: / home5 / rakcha / www / control / assets / js / pages / material_select /
Filename : getmdl-select.js
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/**

 *  Document   : getmdl-select.js

 *  Author     : redstar

 *  Description: js file for select item used in material design pages

 *

 **/



    'use strict';

    (function () {

        function whenLoaded() {

            getmdlSelect.init('.getmdl-select');

        };



        window.addEventListener ?

            window.addEventListener("load", whenLoaded, false) :

            window.attachEvent && window.attachEvent("onload", whenLoaded);



    }());



    var getmdlSelect = {

        _defaultValue: {

            width: 300

        },

        _addEventListeners: function (dropdown) {

            var input = dropdown.querySelector('input');

            var list = dropdown.querySelectorAll('li');

            var menu = dropdown.querySelector('.mdl-js-menu');



            //show menu on arrow down or arrow up

            input.onkeydown = function (event) {

                if (event.keyCode == 38 || event.keyCode == 40) {

                    menu['MaterialMenu'].show();

                }

            };



            //return focus to input

            menu.onkeydown = function (event) {

                if (event.keyCode == 13) {

                    input.focus();

                }

            };



            [].forEach.call(list, function (li) {

                li.onclick = function () {

                    var value = li.textContent.trim();

                    input.value = value;

                    dropdown.MaterialTextfield.change(value); // handles css class changes

                    setTimeout(function () {

                        dropdown.MaterialTextfield.updateClasses_(); //update css class

                    }, 250);



                    // update input with the "id" value

                    input.dataset.val = li.dataset.val || '';



                    if ("createEvent" in document) {

                        var evt = document.createEvent("HTMLEvents");

                        evt.initEvent("change", false, true);

                        menu['MaterialMenu'].hide();

                        input.dispatchEvent(evt);

                    } else {

                        input.fireEvent("onchange");

                    }

                };

            });

        },

        init: function (selector, widthDef) {

            var dropdowns = document.querySelectorAll(selector);

            [].forEach.call(dropdowns, function (i) {

                getmdlSelect._addEventListeners(i);

                var width = widthDef ? widthDef : (i.querySelector('.mdl-menu').offsetWidth ? i.querySelector('.mdl-menu').offsetWidth : getmdlSelect._defaultValue.width);

                i.style.width = width + 'px';

                componentHandler.upgradeElement(i);

                componentHandler.upgradeElement(i.querySelector('ul'));

            });

        }

    };