{
  "version": 3,
  "sources": ["/cdn/shop/t/65/assets/delegate.js?cv=1.24.4"],
  "sourcesContent": ["/*jslint browser:true, node:true*/\n/*global define, Node*/\n\n/**\n * @preserve Create and manage a DOM event delegator.\n *\n * @version 0.1.3\n * @codingstandard ftlabs-jsv2\n * @copyright The Financial Times Limited [All Rights Reserved]\n * @license MIT License (see LICENSE.txt)\n */\n\n;(function(){\n\n\t'use strict';\n\n\t/**\n\t * DOM event delegator\n\t *\n\t * The delegator will listen\n\t * for events that bubble up\n\t * to the root node.\n\t *\n\t * @constructor\n\t * @param {Node|string} root The root node or a selector string matching the root node\n\t */\n\tfunction Delegate(root) {\n\t\tvar self = this;\n\n\t\tif (root) {\n\t\t\tthis.root(root);\n\t\t}\n\n\t\t/**\n\t\t * Maintain a map of listener\n\t\t * lists, keyed by event name.\n\t\t *\n\t\t * @type Object\n\t\t */\n\t\tthis.listenerMap = {};\n\n\t\t/** @type function() */\n\t\tthis.handle = function(event) { Delegate.prototype.handle.call(self, event); };\n\t}\n\n\t/**\n\t * @protected\n\t * @type ?boolean\n\t */\n\tDelegate.tagsCaseSensitive = null;\n\n\t/**\n\t * Start listening for events\n\t * on the provided DOM element\n\t *\n\t * @param  {Node} root The root node or a selector string matching the root node\n\t */\n\tDelegate.prototype.root = function(root) {\n\t\tvar listenerMap = this.listenerMap;\n\t\tvar eventType;\n\n\t\tif (typeof root === 'string') {\n\t\t\troot = document.querySelector(root);\n\t\t}\n\n\t\t// Remove master event listeners\n\t\tif (this.rootElement) {\n\t\t\tfor (eventType in listenerMap) {\n\t\t\t\tif (listenerMap.hasOwnProperty(eventType)) {\n\t\t\t\t\tthis.rootElement.removeEventListener(eventType, this.handle, this.captureForType(eventType));\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// If no root or root is not\n\t\t// a dom node, then remove internal\n\t\t// root reference and exit here\n\t\tif (!root || !root.addEventListener) {\n\t\t\tif (this.rootElement) {\n\t\t\t\tdelete this.rootElement;\n\t\t\t}\n\t\t\treturn;\n\t\t}\n\n\t\t/**\n\t\t * The root node at which\n\t\t * listeners are attached.\n\t\t *\n\t\t * @type Node\n\t\t */\n\t\tthis.rootElement = root;\n\n\t\t// Set up master event listeners\n\t\tfor (eventType in listenerMap) {\n\t\t\tif (listenerMap.hasOwnProperty(eventType)) {\n\t\t\t\tthis.rootElement.addEventListener(eventType, this.handle, this.captureForType(eventType));\n\t\t\t}\n\t\t}\n\t};\n\n\t/**\n\t * @param {string} eventType\n\t * @returns boolean\n\t */\n\tDelegate.prototype.captureForType = function(eventType) {\n\t\treturn eventType === 'error';\n\t};\n\n\t/**\n\t * Attach a handler to one\n\t * event for all elements\n\t * that match the selector,\n\t * now or in the future\n\t *\n\t * The handler function receives\n\t * three arguments: the DOM event\n\t * object, the node that matched\n\t * the selector while the event\n\t * was bubbling and a reference\n\t * to itself. Within the handler,\n\t * 'this' is equal to the second\n\t * argument.\n\t *\n\t * The node that actually received\n\t * the event can be accessed via\n\t * 'event.target'.\n\t *\n\t * @param {string} eventType Listen for these events (in a space-separated list)\n\t * @param {string} selector Only handle events on elements matching this selector\n\t * @param {function()} handler Handler function - event data passed here will be in event.data\n\t * @param {Object} [eventData] Data to pass in event.data\n\t * @returns {Delegate} This method is chainable\n\t */\n\tDelegate.prototype.on = function(eventType, selector, handler, eventData) {\n\t\tvar root, listenerMap, matcher, matcherParam, self = this, /** @const */ SEPARATOR = ' ';\n\n\t\tif (!eventType) {\n\t\t\tthrow new TypeError('Invalid event type: ' + eventType);\n\t\t}\n\n\t\tif (!selector) {\n\t\t\tthrow new TypeError('Invalid selector: ' + selector);\n\t\t}\n\n\t\t// Support a separated list of event types\n\t\tif (eventType.indexOf(SEPARATOR) !== -1) {\n\t\t\teventType.split(SEPARATOR).forEach(function(singleEventType) {\n\t\t\t\tself.on(singleEventType, selector, handler, eventData);\n\t\t\t});\n\n\t\t\treturn this;\n\t\t}\n\n\t\t// Normalise undefined eventData to null\n\t\tif (eventData === undefined) {\n\t\t\teventData = null;\n\t\t}\n\n\t\tif (typeof handler !== 'function') {\n\t\t\tthrow new TypeError('Handler must be a type of Function');\n\t\t}\n\n\t\troot = this.rootElement;\n\t\tlistenerMap = this.listenerMap;\n\n\t\t// Add master handler for type if not created yet\n\t\tif (!listenerMap[eventType]) {\n\t\t\tif (root) {\n\t\t\t\troot.addEventListener(eventType, this.handle, this.captureForType(eventType));\n\t\t\t}\n\t\t\tlistenerMap[eventType] = [];\n\t\t}\n\n\t\t// Compile a matcher for the given selector\n\t\tif (/^[a-z]+$/i.test(selector)) {\n\n\t\t\t// Lazily check whether tag names are case sensitive (as in XML or XHTML documents).\n\t\t\tif (Delegate.tagsCaseSensitive === null) {\n\t\t\t\tDelegate.tagsCaseSensitive = document.createElement('i').tagName === 'i';\n\t\t\t}\n\n\t\t\tif (!Delegate.tagsCaseSensitive) {\n\t\t\t\tmatcherParam = selector.toUpperCase();\n\t\t\t} else {\n\t\t\t\tmatcherParam = selector;\n\t\t\t}\n\n\t\t\tmatcher = this.matchesTag;\n\t\t} else if (/^#[a-z0-9\\-_]+$/i.test(selector)) {\n\t\t\tmatcherParam = selector.slice(1);\n\t\t\tmatcher = this.matchesId;\n\t\t} else {\n\t\t\tmatcherParam = selector;\n\t\t\tmatcher = this.matches;\n\t\t}\n\n\t\t// Add to the list of listeners\n\t\tlistenerMap[eventType].push({\n\t\t\tselector: selector,\n\t\t\teventData: eventData,\n\t\t\thandler: handler,\n\t\t\tmatcher: matcher,\n\t\t\tmatcherParam: matcherParam\n\t\t});\n\n\t\treturn this;\n\t};\n\n\t/**\n\t * Remove an event handler\n\t * for elements that match\n\t * the selector, forever\n\t *\n\t * @param {string} eventType Remove handlers for events matching this type, considering the other parameters\n\t * @param {string} [selector] If this parameter is omitted, only handlers which match the other two will be removed\n\t * @param {function()} [handler] If this parameter is omitted, only handlers which match the previous two will be removed\n\t * @returns {Delegate} This method is chainable\n\t */\n\tDelegate.prototype.off = function(eventType, selector, handler) {\n\t\tvar i, listener, listenerMap, listenerList, singleEventType, self = this, /** @const */ SEPARATOR = ' ';\n\n\t\tlistenerMap = this.listenerMap;\n\t\tif (!eventType) {\n\t\t\tfor (singleEventType in listenerMap) {\n\t\t\t\tif (listenerMap.hasOwnProperty(singleEventType)) {\n\t\t\t\t\tthis.off(singleEventType, selector, handler);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn this;\n\t\t}\n\n\t\tlistenerList = listenerMap[eventType];\n\t\tif (!listenerList || !listenerList.length) {\n\t\t\treturn this;\n\t\t}\n\n\t\t// Support a separated list of event types\n\t\tif (eventType.indexOf(SEPARATOR) !== -1) {\n\t\t\teventType.split(SEPARATOR).forEach(function(singleEventType) {\n\t\t\t\tself.off(singleEventType, selector, handler);\n\t\t\t});\n\n\t\t\treturn this;\n\t\t}\n\n\t\t// Remove only parameter matches if specified\n\t\tfor (i = listenerList.length - 1; i >= 0; i--) {\n\t\t\tlistener = listenerList[i];\n\n\t\t\tif ((!selector || selector === listener.selector) && (!handler || handler === listener.handler)) {\n\t\t\t\tlistenerList.splice(i, 1);\n\t\t\t}\n\t\t}\n\n\t\t// All listeners removed\n\t\tif (!listenerList.length) {\n\t\t\tdelete listenerMap[eventType];\n\n\t\t\t// Remove the main handler\n\t\t\tif (this.rootElement) {\n\t\t\t\tthis.rootElement.removeEventListener(eventType, this.handle, this.captureForType(eventType));\n\t\t\t}\n\t\t}\n\n\t\treturn this;\n\t};\n\n\n\t/**\n\t * Handle an arbitrary event.\n\t *\n\t * @param {Event} event\n\t */\n\tDelegate.prototype.handle = function(event) {\n\t\tvar i, l, root, listener, returned, listenerList, target, /** @const */ EVENTIGNORE = 'ftLabsDelegateIgnore';\n\n\t\tif (event[EVENTIGNORE] === true) {\n\t\t\treturn;\n\t\t}\n\n\t\ttarget = event.target;\n\t\tif (target.nodeType === Node.TEXT_NODE) {\n\t\t\ttarget = target.parentNode;\n\t\t}\n\n\t\troot = this.rootElement;\n\t\tlistenerList = this.listenerMap[event.type];\n\n\t\t// Need to continuously check\n\t\t// that the specific list is\n\t\t// still populated in case one\n\t\t// of the callbacks actually\n\t\t// causes the list to be destroyed.\n\t\tl = listenerList.length;\n\t\twhile (target && l) {\n\t\t\tfor (i = 0; 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