storm-toggler
Version:
Accessible UI state toggling
184 lines (153 loc) • 20.4 kB
JavaScript
(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
(function (global){
'use strict';
var _stormToggler = require('./libs/storm-toggler');
var _stormToggler2 = _interopRequireDefault(_stormToggler);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
var onDOMContentLoadedTasks = [function () {
_stormToggler2.default.init('.js-toggle');
_stormToggler2.default.init('.js-toggle__local', {
local: true,
delay: 0,
callback: function callback() {
var _this = this;
if (this.open) {
global.Togglers.forEach(function (toggler) {
if (toggler !== _this && !!toggler.open && toggler.DOMElement !== _this.targetElement) {
toggler.toggle();
}
});
}
}
});
}];
global.Togglers = {};
if ('addEventListener' in window) window.addEventListener('DOMContentLoaded', function () {
onDOMContentLoadedTasks.forEach(function (fn) {
return fn();
});
});
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./libs/storm-toggler":2}],2:[function(require,module,exports){
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
/**
* @name storm-toggler: Class and ARIA toggle UI state manipulation
* @version 0.11.0: Wed, 15 Mar 2017 13:46:42 GMT
* @author mjbp
* @license MIT
*/
var defaults = {
delay: 0,
startOpen: false,
local: false,
prehook: false,
callback: false,
focus: true,
trapTab: false
};
var StormToggler = {
init: function init() {
var _this = this;
this.targetElement = document.getElementById(this.targetId);
this.classTarget = !this.settings.local ? document.documentElement : this.targetElement.parentNode;
this.siblingBtns = [].slice.call(document.querySelectorAll('[href="#' + this.targetId + '"], [data-target="#' + this.targetId + '"]'));
if (this.settings.focus) this.focusableChildren = this.getFocusableChildren();
if (this.settings.trapTab) this.boundKeyListener = this.keyListener.bind(this);
this.statusClass = !this.settings.local ? 'on--' + this.targetId : 'active';
this.animatingClass = !this.settings.local ? 'animating--' + this.targetId : 'animating';
this.siblingBtns.forEach(function (btn) {
btn.setAttribute('role', 'button');
btn.setAttribute('aria-controls', _this.targetId);
btn.setAttribute('aria-expanded', 'false');
});
this.btn.addEventListener('click', function (e) {
_this.toggle(e);
});
this.settings.startOpen && this.toggle();
return this;
},
getFocusableChildren: function getFocusableChildren() {
var focusableElements = ['a[href]', 'area[href]', 'input:not([disabled])', 'select:not([disabled])', 'textarea:not([disabled])', 'button:not([disabled])', 'iframe', 'object', 'embed', '[contenteditable]', '[tabindex]:not([tabindex="-1"])'];
return [].slice.call(this.targetElement.querySelectorAll(focusableElements.join(',')));
},
toggleAttributes: function toggleAttributes() {
this.isOpen = !this.isOpen;
this.siblingBtns.forEach(function (sibling) {
sibling.setAttribute('aria-expanded', sibling.getAttribute('aria-expanded') === 'true' ? 'false' : 'true');
});
},
toggleDocumentState: function toggleDocumentState() {
this.classTarget.classList.remove(this.animatingClass);
this.classTarget.classList.toggle(this.statusClass);
},
manageFocus: function manageFocus() {
var _this2 = this;
if (!this.isOpen) {
this.lastFocused = document.activeElement;
this.focusableChildren.length && window.setTimeout(function () {
return _this2.focusableChildren[0].focus();
}, this.settings.delay);
this.settings.trapTab && document.addEventListener('keydown', this.boundKeyListener);
} else {
this.settings.trapTab && document.removeEventListener('keydown', this.boundKeyListener);
this.focusableChildren.length && window.setTimeout(function () {
_this2.lastFocused.focus();
_this2.lastFocused = false;
}, this.settings.delay);
}
},
trapTab: function trapTab(e) {
var focusedIndex = this.focusableChildren.indexOf(document.activeElement);
if (e.shiftKey && focusedIndex === 0) {
e.preventDefault();
this.focusableChildren[this.focusableChildren.length - 1].focus();
} else {
if (!e.shiftKey && focusedIndex === this.focusableChildren.length - 1) {
e.preventDefault();
this.focusableChildren[0].focus();
}
}
},
keyListener: function keyListener(e) {
if (this.isOpen && e.keyCode === 27) {
e.preventDefault();
this.toggle();
}
if (this.isOpen && e.keyCode === 9) {
this.trapTab(e);
}
},
toggle: function toggle(e) {
var _this3 = this;
var delay = this.classTarget.classList.contains(this.statusClass) ? this.settings.delay : 0;
!!this.settings.prehook && typeof this.settings.prehook === 'function' && this.settings.prehook.call(this);
if (e) {
e.preventDefault();
e.stopPropagation();
}
this.classTarget.classList.add(this.animatingClass);
window.setTimeout(function () {
!!_this3.settings.focus && _this3.focusableChildren && _this3.manageFocus();
_this3.toggleAttributes();
_this3.toggleDocumentState();
!!_this3.settings.callback && typeof _this3.settings.callback === 'function' && _this3.settings.callback.call(_this3);
}, delay);
}
};
var init = function init(sel, opts) {
var els = [].slice.call(document.querySelectorAll(sel));
if (!els.length) throw new Error('Toggler cannot be initialised, no augmentable elements found');
return els.map(function (el) {
return Object.assign(Object.create(StormToggler), {
btn: el,
targetId: (el.getAttribute('href') || el.getAttribute('data-target')).substr(1),
settings: Object.assign({}, defaults, opts)
}).init();
});
};
exports.default = { init: init };
},{}]},{},[1])
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e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})","import Toggler from './libs/storm-toggler';\n\nconst onDOMContentLoadedTasks = [() => {\n\tToggler.init('.js-toggle');\n\tToggler.init('.js-toggle__local', {\n\t\tlocal: true,\n\t\tdelay: 0,\n\t\tcallback: function() {\n\t\t\tif(this.open){\n\t\t\t\tglobal.Togglers.forEach(toggler => {\n\t\t\t\t\tif(toggler !== this && !!toggler.open && toggler.DOMElement !== this.targetElement){\n\t\t\t\t\t\ttoggler.toggle();\n\t\t\t\t\t}\n\t\t\t\t});\n\t\t\t}\n\t\t}\n\t});\n}];\n\nglobal.Togglers = {};\n    \nif('addEventListener' in window) window.addEventListener('DOMContentLoaded', () => { onDOMContentLoadedTasks.forEach((fn) => fn()); });\n","/**\n * @name storm-toggler: Class and ARIA toggle UI state manipulation\n * @version 0.11.0: Wed, 15 Mar 2017 13:46:42 GMT\n * @author mjbp\n * @license MIT\n */\nconst defaults = {\n\tdelay: 0,\n\tstartOpen: false,\n\tlocal: false,\n\tprehook: false,\n\tcallback: false,\n\tfocus: true,\n\ttrapTab: false\n};\n\nconst StormToggler = {\n\tinit() {\n\t\tthis.targetElement = document.getElementById(this.targetId);\n\t\tthis.classTarget = (!this.settings.local) ? document.documentElement : this.targetElement.parentNode;\n\t\tthis.siblingBtns = [].slice.call(document.querySelectorAll('[href=\"#' + this.targetId + '\"], [data-target=\"#' + this.targetId + '\"]'));\n\t\tif(this.settings.focus) this.focusableChildren = this.getFocusableChildren();\n\t\tif(this.settings.trapTab) this.boundKeyListener = this.keyListener.bind(this);\n\n\t\tthis.statusClass = !this.settings.local ? `on--${this.targetId}` : 'active';\n\t\tthis.animatingClass = !this.settings.local ? `animating--${this.targetId}` : 'animating';\n\n\t\tthis.siblingBtns.forEach(btn => {\n\t\t\tbtn.setAttribute('role','button');\n\t\t\tbtn.setAttribute('aria-controls', this.targetId);\n\t\t\tbtn.setAttribute('aria-expanded', 'false');\n\t\t});\n\n\t\tthis.btn.addEventListener('click', e => { this.toggle(e); });\n\t\tthis.settings.startOpen && this.toggle();\n\t\t\n\t\treturn this;\n\t},\n\tgetFocusableChildren() {\n\t\tconst focusableElements = ['a[href]', 'area[href]', 'input:not([disabled])', 'select:not([disabled])', 'textarea:not([disabled])', 'button:not([disabled])', 'iframe', 'object', 'embed', '[contenteditable]', '[tabindex]:not([tabindex=\"-1\"])'];\n\n\t\treturn [].slice.call(this.targetElement.querySelectorAll(focusableElements.join(',')));\n\t},\n\ttoggleAttributes: function(){\n\t\tthis.isOpen = !this.isOpen;\n\t\tthis.siblingBtns.forEach(sibling => {\n\t\t\tsibling.setAttribute('aria-expanded', sibling.getAttribute('aria-expanded') === 'true' ? 'false' : 'true');\n\t\t});\n\t},\n\ttoggleDocumentState: function(){\n\t\tthis.classTarget.classList.remove(this.animatingClass);\n\t\tthis.classTarget.classList.toggle(this.statusClass);\n\t},\n\tmanageFocus: function(){\n\t\tif(!this.isOpen){\n\t\t\tthis.lastFocused = document.activeElement;\n\t\t\tthis.focusableChildren.length && window.setTimeout(() => this.focusableChildren[0].focus(), this.settings.delay);\n\t\t\tthis.settings.trapTab && document.addEventListener('keydown', this.boundKeyListener);\n\t\t}\n\t\telse {\n\t\t\tthis.settings.trapTab && document.removeEventListener('keydown', this.boundKeyListener);\n\t\t\tthis.focusableChildren.length && window.setTimeout(() => {\n\t\t\t\tthis.lastFocused.focus();\n\t\t\t\tthis.lastFocused = false;\n\t\t\t}, this.settings.delay);\n\t\t}\n\t},\n\ttrapTab: function(e){\n\t\tlet focusedIndex = this.focusableChildren.indexOf(document.activeElement);\n\t\tif(e.shiftKey && focusedIndex === 0) {\n\t\t\te.preventDefault();\n\t\t\tthis.focusableChildren[this.focusableChildren.length - 1].focus();\n\t\t} else {\n\t\t\tif(!e.shiftKey && focusedIndex === this.focusableChildren.length - 1) {\n\t\t\t\te.preventDefault();\n\t\t\t\tthis.focusableChildren[0].focus();\n\t\t\t}\n\t\t}\n\t},\n\tkeyListener(e){\n\t\tif (this.isOpen && e.keyCode === 27) {\n\t\t\te.preventDefault();\n\t\t\tthis.toggle();\n\t\t}\n\t\tif (this.isOpen && e.keyCode === 9) {\n\t\t\tthis.trapTab(e);\n\t\t}\n\t},\n\ttoggle: function(e){\n\t\tlet delay = this.classTarget.classList.contains(this.statusClass) ?  this.settings.delay : 0;\n\n\t\t(!!this.settings.prehook && typeof this.settings.prehook === 'function') && this.settings.prehook.call(this);\n\t\t\n\t\tif(e){\n\t\t\te.preventDefault();\n\t\t\te.stopPropagation();\n\t\t}\n\t\t\n\t\tthis.classTarget.classList.add(this.animatingClass);\n\t\t\n\t\twindow.setTimeout(() => {\n\t\t\t(!!this.settings.focus && this.focusableChildren) && this.manageFocus();\n\t\t\tthis.toggleAttributes();\n\t\t\tthis.toggleDocumentState();\n\t\t\t(!!this.settings.callback && typeof this.settings.callback === 'function') && this.settings.callback.call(this);\n\t\t}, delay);\n\t}\n};\n\nconst init = (sel, opts) => {\n\tlet els = [].slice.call(document.querySelectorAll(sel));\n\t\n\tif(!els.length) throw new Error('Toggler cannot be initialised, no augmentable elements found');\n\n\treturn els.map((el) => {\n\t\treturn Object.assign(Object.create(StormToggler), {\n\t\t\tbtn: el,\n\t\t\ttargetId: (el.getAttribute('href')|| el.getAttribute('data-target')).substr(1),\n\t\t\tsettings: Object.assign({}, defaults, opts)\n\t\t}).init();\n\t});\n};\n\nexport default { init };"]}