260 lines
11 KiB
JavaScript
260 lines
11 KiB
JavaScript
(function (window) {
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"use strict";
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window.ls.container.get('view').add(
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{
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selector: 'data-service',
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repeat: false,
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controller: function(element, view, container, form, alerts, expression, window, router) {
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let action = element.dataset['service'];
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let service = element.dataset['name'] || action;
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let event = element.dataset['event']; // load, click, change, submit
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let confirm = element.dataset['confirm'] || ''; // Free text
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let loading = element.dataset['loading'] || ''; // Free text
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let loaderId = null;
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let scope = element.dataset['scope'] || 'sdk'; // Free text
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let debug = !!(element.dataset['debug']); // Free text
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let success = (element.dataset['success'] || '');
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let failure = (element.dataset['failure'] || '');
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success = (success && success != '') ? success.trim().split(',') : [];
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failure = (failure && failure != '') ? failure.trim().split(',') : [];
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if (debug) console.log('%c[service init]: ' + action + ' (' + service + ')', 'color:red');
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let callbacks = {
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'reset': function () {
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return function () {
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if ('FORM' === element.tagName) {
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return element.reset();
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}
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throw new Error('This callback is only valid for forms');
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}
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},
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'alert': function (text, classname) {
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return function (alerts) {
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alerts.add({ text: text, class: (classname || 'success') }, 3000);
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}
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},
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'redirect': function (url) {
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return function (router) {
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router.change(url || '/');
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}
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},
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'reload': function () {
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return function (router) {
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router.reload();
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}
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},
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'trigger': function (events) {
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return function (document) {
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events = events.trim().split(',');
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for (let i = 0; i < events.length; i++) {
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if ('' === events[i]) {
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continue;
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}
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if (debug) console.log('%c[event triggered]: ' + events[i], 'color:green');
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document.dispatchEvent(new CustomEvent(events[i]));
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}
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}
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}
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};
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/**
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* Original Solution From:
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* @see https://stackoverflow.com/a/41322698/2299554
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* Notice: this version add support for $ sign in arg name.
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*
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* Retrieve a function's parameter names and default values
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* Notes:
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* - parameters with default values will not show up in transpiler code (Babel) because the parameter is removed from the function.
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* - does NOT support inline arrow functions as default values
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* to clarify: ( name = "string", add = defaultAddFunction ) - is ok
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* ( name = "string", add = ( a )=> a + 1 ) - is NOT ok
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* - does NOT support default string value that are appended with a non-standard ( word characters or $ ) variable name
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* to clarify: ( name = "string" + b ) - is ok
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* ( name = "string" + $b ) - is ok
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* ( name = "string" + b + "!" ) - is ok
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* ( name = "string" + λ ) - is NOT ok
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* @param {function} func
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* @returns {Array} - An array of the given function's parameter [key, default value] pairs.
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*/
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let getParams = function getParams(func) {
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const REGEX_COMMENTS = /((\/\/.*$)|(\/\*[\s\S]*?\*\/))/mg;
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const REGEX_FUNCTION_PARAMS = /(?:\s*(?:function\s*[^(]*)?\s*)((?:[^'"]|(?:(?:(['"])(?:(?:.*?[^\\]\2)|\2))))*?)\s*(?=(?:=>)|{)/m;
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const REGEX_PARAMETERS_VALUES = /\s*([\w\\$]+)\s*(?:=\s*((?:(?:(['"])(?:\3|(?:.*?[^\\]\3)))((\s*\+\s*)(?:(?:(['"])(?:\6|(?:.*?[^\\]\6)))|(?:[\w$]*)))*)|.*?))?\s*(?:,|$)/gm;
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let functionAsString = func.toString();
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let params = [];
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let match;
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functionAsString = functionAsString.replace(REGEX_COMMENTS, '');
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functionAsString = functionAsString.match(REGEX_FUNCTION_PARAMS)[1];
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if (functionAsString.charAt(0) === '(') {
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functionAsString = functionAsString.slice(1, -1);
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}
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while (match = REGEX_PARAMETERS_VALUES.exec(functionAsString)) {
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//params.push([match[1], match[2]]); // with default values
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params.push(match[1]); // only with arg name
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}
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return params;
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}
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let resolve = function(target, prefix = 'param', data = {}) {
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if (!target) {
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return function() {};
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}
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let args = getParams(target);
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if (debug) console.log('%c[form data]: ', 'color:green', data);
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return target.apply(target, args.map(function(value) {
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let result = null;
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if(!value) {
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return null;
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}
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/**
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* 1. Get from element data-param-* (expression supported)
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* 2. Get from element data-param-state-*
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* 3. Get from element form object-*
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*/
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if(element.dataset[prefix + value.charAt(0).toUpperCase() + value.slice(1)]) {
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result = expression.parse(element.dataset[prefix + value.charAt(0).toUpperCase() + value.slice(1)]);
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}
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if(data[value]) {
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result = data[value];
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}
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if(!result) {
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result = '';
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}
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if (debug) console.log('%c[param resolved]: (' + service + ') ' + value + '=' + result, 'color:#808080');
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return result;
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}));
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};
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let exec = function(event) {
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element.$lsSkip = true;
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if (debug) console.log('%c[executed]: ' + scope + '.' + action, 'color:yellow', event, element, document.body.contains(element));
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if(!document.body.contains(element)) {
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element = undefined;
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return false;
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}
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if(event) {
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event.preventDefault();
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}
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if(confirm) {
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if (window.confirm(confirm) !== true) {
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return false;
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}
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}
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if(loading) {
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loaderId = alerts.add({text: loading, class: ''}, 0);
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}
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let method = container.path(scope + '.' + action);
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if(!method) {
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throw new Error('Method "' + scope + '.' + action + '" not found');
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}
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let result = resolve(method, 'param', ('FORM' === element.tagName) ? form.toJson(element) : {});
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if(!result) {
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return;
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}
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result
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.then(function (data) {
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if(loaderId !== null) { // Remove loader if needed
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alerts.remove(loaderId);
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}
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if(!element) {
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return;
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}
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container.set(service.replace('.', '-'), data, true, true);
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if (debug) console.log('%cservice ready: "' + service.replace('.', '-') + '"', 'color:green');
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if (debug) console.log('%cservice:', 'color:blue', container.get(service.replace('.', '-')));
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for (let i = 0; i < success.length; i++) { // Trigger success callbacks
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container.resolve(resolve(callbacks[success[i]], 'successParam' + success[i].charAt(0).toUpperCase() + success[i].slice(1), {}));
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}
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element.$lsSkip = false;
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view.render(element);
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}, function (exception) {
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if(loaderId !== null) { // Remove loader if needed
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alerts.remove(loaderId);
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}
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if(!element) {
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return;
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}
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for (let i = 0; i < failure.length; i++) { // Trigger success callbacks
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container.resolve(resolve(callbacks[failure[i]], 'failureParam' + failure[i].charAt(0).toUpperCase() + failure[i].slice(1), {}));
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}
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element.$lsSkip = false;
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view.render(element);
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});
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};
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let events = event.trim().split(',');
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for (let y = 0; y < events.length; y++) {
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if ('' === events[y]) {
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continue;
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}
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switch (events[y].trim()) {
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case 'load':
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exec();
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break;
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case 'none':
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break;
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case 'click':
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case 'change':
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case 'keypress':
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case 'keydown':
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case 'keyup':
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case 'input':
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case 'submit':
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element.addEventListener(events[y], exec);
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break;
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default:
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document.addEventListener(events[y], exec);
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}
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if (debug) console.log('%cregistered: "' + events[y].trim() + '" (' + service + ')', 'color:blue');
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}
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}
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}
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);
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})(window); |