/*! jQuery UI Virtual Keyboard Typing Simulator v1.9.1 *//*
 * for Keyboard v1.18+ only (7/7/2015)
 *
 * By Rob Garrison (aka Mottie & Fudgey)
 * Licensed under the MIT License
 *
 * Use this extension with the Virtual Keyboard to simulate
 * typing for tutorials or whatever else use you can find
 *
 * Requires:
 *  jQuery
 *  Keyboard plugin : https://github.com/Mottie/Keyboard
 *
 * Setup:
 *  $('.ui-keyboard-input')
 *   .keyboard(options)
 *   .addTyping(typing-options);
 *
 *  // or if targeting a specific keyboard
 *  $('#keyboard1')
 *   .keyboard(options)
 *   .addTyping(typing-options);
 *
 * Basic Usage:
 *  // To disable manual typing on the virtual keyboard, just set "showTyping" option to false
 *  $('#keyboard-input').keyboard(options).addTyping({ showTyping: false });
 *
 *  // Change the default typing delay (time the virtual keyboard highlights the manually typed key) - default = 250 milliseconds
 *  $('#keyboard-input').keyboard(options).addTyping({ delay: 500 });
 *
 *  // get keyboard object, open it, then start typing simulation
 *  $('#keyboard-input').getkeyboard().reveal().typeIn('Hello World', 700);
 *
 *  // get keyboard object, open it, type in "This is a test" with 700ms delay between types, then accept & close the keyboard
 *  $('#keyboard-input').getkeyboard().reveal().typeIn('This is a test', 700, function(){ $('#keyboard-input').getkeyboard().close(true); });
 */

// EXAMPLES:
// $('#inter').getkeyboard().reveal().typeIn('\tHello \b\n\tWorld', 500);
// $('#meta').getkeyboard().reveal().typeIn('abCDd11123\u2648\u2649\u264A\u264B', 700, function(){ alert('all done!'); });
/*jshint browser:true, jquery:true, unused:false */
/*global require:false, define:false, module:false */
;(function(factory) {
	if (typeof define === 'function' && define.amd) {
		define(['jquery'], factory);
	} else if (typeof module === 'object' && typeof module.exports === 'object') {
		module.exports = factory(require('jquery'));
	} else {
		factory(jQuery);
	}
}(function($) {
	$.fn.addTyping = function(options){
		//Set the default values, use comma to separate the settings, example:
		var defaults = {
			showTyping : true,
			lockTypeIn : false,
			delay      : 250
		},
		$keyboard = $.keyboard;
		return this.each(function(){
			// make sure a keyboard is attached
			var o, base = $(this).data('keyboard');
			if (!base) { return; }

			// variables
			o = base.typing_options = $.extend({}, defaults, options);
			base.typing_keymap = {
				' '   : 'space',
				'"'   : '34',
				"'"   : '39',
				'&nbsp;' : 'space',
				'\b'  : 'bksp', // delete character to the left
				'{b}' : 'bksp',
				'{d}' : 'del',  // delete character to the right
				'{l}' : 'left', // move caret left
				'{r}' : 'right', // move caret right
				'\n'  : 'enter',
				'\r'  : 'enter',
				'{e}' : 'enter',
				'\t'  : 'tab',
				'{t}' : 'tab'
			};
			base.typing_xref = {
				8  : 'bksp',
				9  : 'tab',
				13 : 'enter',
				32 : 'space',
				46 : 'del'
			};
			base.typing_event = false;
			base.typing_namespace = base.namespace + 'typing';
			base.extensionNamespace.push( base.typing_namespace );
			// save lockInput setting
			o.savedLockInput = base.options.lockInput;

			base.typing_setup = function(){
				var kbevents = $keyboard.events,
					namespace = base.typing_namespace;
				base.$el.add( base.$preview ).unbind(namespace);
				base.$el
					.bind([ kbevents.kbHidden, kbevents.kbInactive, '' ].join( namespace + ' ' ), function(e){
						base.typing_reset();
					})
					.bind( $keyboard.events.kbBeforeVisible + namespace, function(){
						base.typing_setup();
					});
				base.$allKeys
					.bind('mousedown' + namespace, function(){
						base.typing_reset();
					});
				base.$preview
				.bind('keyup' + namespace, function(e){
					if (o.init && o.lockTypeIn) { return false; }
					if (e.which >= 37 && e.which <=40) { return; } // ignore arrow keys
					if (e.which === 16) { base.shiftActive = false; }
					if (e.which === 18) { base.altActive = false; }
					if (e.which === 16 || e.which === 18) {
						base.showSet();
						// Alt key will shift focus to the menu - doesn't work in Windows
						setTimeout(function(){ base.$preview.focus(); }, 200);
						return;
					}
				})
				// change keyset when either shift or alt is held down
				.bind('keydown' + namespace, function(e){
					if (o.init && o.lockTypeIn) { return false; }
					e.temp = false; // prevent repetitive calls while keydown repeats.
					if (e.which === 16) { e.temp = !base.shiftActive; base.shiftActive = true; }
					// it should be ok to reset e.temp, since both alt and shift will call this function separately
					if (e.which === 18) { e.temp = !base.altActive; base.altActive = true; }
					if (e.temp) {
						base.showSet();
						base.$preview.focus(); // Alt shift focus to the menu
					}
					base.typing_event = true;
					// Simulate key press for tab and backspace since they don't fire the keypress event
					if (e.which === 8 || e.which === 9) {
						base.typing_findKey( '', e ); // pass event object
					}

				})
				.bind('keypress' + namespace, function(e){
					if (o.init && o.lockTypeIn) { return false; }
					// Simulate key press on virtual keyboard
					if (base.typing_event && !base.options.lockInput) {
						base.typing_reset();
						base.typing_event = true;
						base.typing_findKey( '', e ); // pass event object
					}
				});
			};

			base.typing_reset = function(){
				base.typing_event = o.init = false;
				o.text = '';
				o.len = o.current = 0;
				base.options.lockInput = o.savedLockInput;
				// clearTimeout(base.typing_timer);
			};

			// Store typing text
			base.typeIn = function(txt, delay, callback, e){
				if (!base.isVisible()) {
					// keyboard was closed
					clearTimeout(base.typing_timer);
					base.typing_reset();
					return;
				}
				if (!base.typing_event){

					if (o.init !== true) {
						o.init = true;
						base.options.lockInput = o.lockTypeIn;
						o.text = txt || o.text || '';
						o.len = o.text.length;
						o.delay = delay || 300;
						o.current = 0; // position in text string
						if (callback) {
							o.callback = callback;
						}
					}
					// function that loops through and types each character
					txt = o.text.substring( o.current, ++o.current );
					// add support for curly-wrapped single character: {l}, {r}, {d}, etc.
					if ( txt === '{' && o.text.substring( o.current + 1, o.current + 2 ) === '}' ) {
						txt += o.text.substring( o.current, o.current += 2 );
					}
					base.typing_findKey( txt, e );
				} else if (typeof txt === 'undefined') {
					// typeIn called by user input
					base.typing_event = false;
					base.options.lockInput = o.savedLockInput;
					return;
				}

			};

			base.typing_findKey = function(txt, e){
				var tar, m, n, k, key, ks, meta, set,
					kbcss = $keyboard.css,
					mappedKeys = $keyboard.builtLayouts[base.layout].mappedKeys;
				// stop if keyboard is closed
				if ( !base.isOpen || !base.$keyboard.length ) { return; }
				ks = base.$keyboard.find('.' + kbcss.keySet);
				k = txt in base.typing_keymap ? base.typing_keymap[txt] : txt;
				// typing_event is true when typing on the actual keyboard - look for actual key
				// All of this breaks when the CapLock is on... unable to find a cross-browser method that works.
				tar = '.' + kbcss.keyButton + '[data-action="' + k + '"]';
				if (base.typing_event && e) {
					if (base.typing_xref.hasOwnProperty(e.keyCode || e.which)) {
						// special named keys: bksp, tab and enter
						tar = '.' + kbcss.keyPrefix + base.typing_xref[e.keyCode || e.which];
					} else {
						m = String.fromCharCode(e.charCode || e.which);
						tar = (mappedKeys.hasOwnProperty(m)) ?
							'.' + kbcss.keyButton + '[data-action="' + mappedKeys[m]  + '"]' :
							'.' + kbcss.keyPrefix + (e.charCode || e.which);
					}
				}
				// find key
				key = ks.filter(':visible').find(tar);
				if (key.length) {
					// key is visible, simulate typing
					base.typing_simulateKey(key, txt, e);
				} else {
					// key not found, check if it is in the keymap (tab, space, enter, etc)
					if (base.typing_event) {
						key = ks.find(tar);
					} else {
						// key not found, check if it is in the keymap (tab, space, enter, etc)
						n = txt in base.typing_keymap ? base.typing_keymap[txt] : base.processName( txt );
						// find actual key on keyboard
						key = ks.find('.' + kbcss.keyPrefix + n);
					}
					// find the keyset
					set = key.closest('.' + kbcss.keySet);
					// figure out which keyset the key is in then simulate clicking on that meta key, then on the key
					if (set.attr('name')) {
						// get meta key name
						meta = set.attr('name');
						// show correct key set
						base.shiftActive = /shift/.test(meta);
						base.altActive = /alt/.test(meta);
						base.metaActive = base.last.keyset[2] = (meta).match(/meta\d+/) || false;
						// make the plugin think we're passing it a jQuery object with a name
						base.showSet( base.metaActive );
						// Add the key
						base.typing_simulateKey(key, txt, e);
					} else {
						if (!base.typing_event) {
							// Key doesn't exist on the keyboard, so just enter it
							if (txt in base.typing_keymap && base.typing_keymap[txt] in $keyboard.keyaction) {
								$keyboard.keyaction[base.typing_keymap[txt]](base, key, e);
							} else {
								base.insertText(txt);
							}
							base.checkCombos();
							base.$el.trigger( $keyboard.events.kbChange, [ base, base.el ] );
						}
					}

				}

				if (o.current <= o.len && o.len !== 0){
					if (!base.isVisible()) { return; } // keyboard was closed, abort!!
					setTimeout(function(){ base.typeIn(); }, o.delay);
				} else if (o.len !== 0){
					// o.len is zero when the user typed on the actual keyboard during simulation
					base.typing_reset();
					if ($.isFunction(o.callback)) {
						// ensure all typing animation is done before the callback
						setTimeout(function(){
							// if the user typed during the key simulation, the "o" variable may sometimes be undefined
							if ($.isFunction(o.callback)) {
								o.callback(base);
							}
						}, o.delay);
					}
					return;
				} else {
					base.typing_reset();
				}
			};

			// mouseover the key, add the text directly, then mouseout on the key
			base.typing_simulateKey = function(el, txt, e){
				var len = el.length;
				if (len) { el.filter(':visible').trigger('mouseenter' + base.namespace); }
				base.typing_timer = setTimeout(function(){
					var len = el.length;
					if (len) { setTimeout(function(){ el.trigger('mouseleave' + base.namespace); }, o.delay/3); }
					if (!base.isVisible()) { return; }
					if (!base.typing_event) {
						if (txt in base.typing_keymap && base.typing_keymap[txt] in $keyboard.keyaction) {
							e = e || $.Event('keypress');
							e.target = el; // "Enter" checks for the e.target
							$keyboard.keyaction[base.typing_keymap[txt]](base, el, e );
						} else {
							base.insertText(txt);
						}
						base.checkCombos();
						base.$el.trigger( $keyboard.events.kbChange, [ base, base.el ] );
					}
				}, o.delay/3);
			};

			if (o.showTyping) {
				// visible event is fired before this extension is initialized, so check!
				if (base.options.alwaysOpen && base.isVisible()) {
					base.typing_setup();
				}
				// capture and simulate typing
				base.$el
					.unbind( $keyboard.events.kbBeforeVisible + base.typing_namespace )
					.bind( $keyboard.events.kbBeforeVisible + base.typing_namespace, function(){
						base.typing_setup();
					});
			}

		});
	};

}));
