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438 lines
12 KiB
JavaScript
438 lines
12 KiB
JavaScript
// The MIT License (MIT)
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// Typed.js | Copyright (c) 2016 Matt Boldt | www.mattboldt.com
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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! function($) {
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"use strict";
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var Typed = function(el, options) {
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// chosen element to manipulate text
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this.el = $(el);
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// options
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this.options = $.extend({}, $.fn.typed.defaults, options);
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// attribute to type into
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this.isInput = this.el.is('input');
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this.attr = this.options.attr;
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// show cursor
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this.showCursor = this.isInput ? false : this.options.showCursor;
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// text content of element
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this.elContent = this.attr ? this.el.attr(this.attr) : this.el.text();
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// html or plain text
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this.contentType = this.options.contentType;
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// typing speed
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this.typeSpeed = this.options.typeSpeed;
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// add a delay before typing starts
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this.startDelay = this.options.startDelay;
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// backspacing speed
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this.backSpeed = this.options.backSpeed;
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// amount of time to wait before backspacing
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this.backDelay = this.options.backDelay;
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// div containing strings
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this.stringsElement = this.options.stringsElement;
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// input strings of text
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this.strings = this.options.strings;
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// character number position of current string
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this.strPos = 0;
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// current array position
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this.arrayPos = 0;
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// number to stop backspacing on.
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// default 0, can change depending on how many chars
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// you want to remove at the time
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this.stopNum = 0;
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// Looping logic
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this.loop = this.options.loop;
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this.loopCount = this.options.loopCount;
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this.curLoop = 0;
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// for stopping
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this.stop = false;
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// custom cursor
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this.cursorChar = this.options.cursorChar;
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// shuffle the strings
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this.shuffle = this.options.shuffle;
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// the order of strings
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this.sequence = [];
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// All systems go!
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this.build();
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};
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Typed.prototype = {
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constructor: Typed,
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init: function() {
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// begin the loop w/ first current string (global self.strings)
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// current string will be passed as an argument each time after this
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var self = this;
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self.timeout = setTimeout(function() {
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for (var i=0;i<self.strings.length;++i) self.sequence[i]=i;
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// shuffle the array if true
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if(self.shuffle) self.sequence = self.shuffleArray(self.sequence);
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// Start typing
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self.typewrite(self.strings[self.sequence[self.arrayPos]], self.strPos);
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}, self.startDelay);
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},
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build: function() {
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var self = this;
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// Insert cursor
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if (this.showCursor === true) {
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this.cursor = $("<span class=\"typed-cursor\">" + this.cursorChar + "</span>");
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this.el.after(this.cursor);
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}
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if (this.stringsElement) {
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this.strings = [];
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this.stringsElement.hide();
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console.log(this.stringsElement.children());
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var strings = this.stringsElement.children();
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$.each(strings, function(key, value){
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self.strings.push($(value).html());
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});
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}
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this.init();
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},
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// pass current string state to each function, types 1 char per call
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typewrite: function(curString, curStrPos) {
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// exit when stopped
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if (this.stop === true) {
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return;
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}
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// varying values for setTimeout during typing
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// can't be global since number changes each time loop is executed
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var humanize = Math.round(Math.random() * (100 - 30)) + this.typeSpeed;
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var self = this;
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// ------------- optional ------------- //
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// backpaces a certain string faster
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// ------------------------------------ //
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// if (self.arrayPos == 1){
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// self.backDelay = 50;
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// }
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// else{ self.backDelay = 500; }
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// contain typing function in a timeout humanize'd delay
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self.timeout = setTimeout(function() {
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// check for an escape character before a pause value
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// format: \^\d+ .. eg: ^1000 .. should be able to print the ^ too using ^^
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// single ^ are removed from string
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var charPause = 0;
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var substr = curString.substr(curStrPos);
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if (substr.charAt(0) === '^') {
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var skip = 1; // skip atleast 1
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if (/^\^\d+/.test(substr)) {
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substr = /\d+/.exec(substr)[0];
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skip += substr.length;
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charPause = parseInt(substr);
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}
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// strip out the escape character and pause value so they're not printed
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curString = curString.substring(0, curStrPos) + curString.substring(curStrPos + skip);
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}
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if (self.contentType === 'html') {
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// skip over html tags while typing
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var curChar = curString.substr(curStrPos).charAt(0)
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if (curChar === '<' || curChar === '&') {
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var tag = '';
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var endTag = '';
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if (curChar === '<') {
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endTag = '>'
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}
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else {
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endTag = ';'
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}
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while (curString.substr(curStrPos + 1).charAt(0) !== endTag) {
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tag += curString.substr(curStrPos).charAt(0);
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curStrPos++;
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if (curStrPos + 1 > curString.length) { break; }
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}
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curStrPos++;
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tag += endTag;
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}
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}
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// timeout for any pause after a character
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self.timeout = setTimeout(function() {
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if (curStrPos === curString.length) {
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// fires callback function
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self.options.onStringTyped(self.arrayPos);
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// is this the final string
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if (self.arrayPos === self.strings.length - 1) {
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// animation that occurs on the last typed string
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self.options.callback();
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self.curLoop++;
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// quit if we wont loop back
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if (self.loop === false || self.curLoop === self.loopCount)
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return;
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}
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self.timeout = setTimeout(function() {
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self.backspace(curString, curStrPos);
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}, self.backDelay);
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} else {
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/* call before functions if applicable */
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if (curStrPos === 0) {
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self.options.preStringTyped(self.arrayPos);
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}
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// start typing each new char into existing string
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// curString: arg, self.el.html: original text inside element
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var nextString = curString.substr(0, curStrPos + 1);
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if (self.attr) {
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self.el.attr(self.attr, nextString);
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} else {
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if (self.isInput) {
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self.el.val(nextString);
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} else if (self.contentType === 'html') {
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self.el.html(nextString);
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} else {
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self.el.text(nextString);
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}
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}
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// add characters one by one
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curStrPos++;
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// loop the function
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self.typewrite(curString, curStrPos);
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}
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// end of character pause
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}, charPause);
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// humanized value for typing
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}, humanize);
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},
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backspace: function(curString, curStrPos) {
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// exit when stopped
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if (this.stop === true) {
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return;
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}
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// varying values for setTimeout during typing
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// can't be global since number changes each time loop is executed
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var humanize = Math.round(Math.random() * (100 - 30)) + this.backSpeed;
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var self = this;
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self.timeout = setTimeout(function() {
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// ----- this part is optional ----- //
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// check string array position
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// on the first string, only delete one word
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// the stopNum actually represents the amount of chars to
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// keep in the current string. In my case it's 14.
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// if (self.arrayPos == 1){
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// self.stopNum = 14;
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// }
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//every other time, delete the whole typed string
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// else{
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// self.stopNum = 0;
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// }
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if (self.contentType === 'html') {
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// skip over html tags while backspacing
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if (curString.substr(curStrPos).charAt(0) === '>') {
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var tag = '';
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while (curString.substr(curStrPos - 1).charAt(0) !== '<') {
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tag -= curString.substr(curStrPos).charAt(0);
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curStrPos--;
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if (curStrPos < 0) { break; }
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}
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curStrPos--;
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tag += '<';
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}
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}
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// ----- continue important stuff ----- //
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// replace text with base text + typed characters
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var nextString = curString.substr(0, curStrPos);
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if (self.attr) {
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self.el.attr(self.attr, nextString);
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} else {
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if (self.isInput) {
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self.el.val(nextString);
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} else if (self.contentType === 'html') {
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self.el.html(nextString);
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} else {
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self.el.text(nextString);
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}
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}
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// if the number (id of character in current string) is
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// less than the stop number, keep going
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if (curStrPos > self.stopNum) {
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// subtract characters one by one
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curStrPos--;
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// loop the function
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self.backspace(curString, curStrPos);
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}
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// if the stop number has been reached, increase
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// array position to next string
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else if (curStrPos <= self.stopNum) {
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self.arrayPos++;
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if (self.arrayPos === self.strings.length) {
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self.arrayPos = 0;
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// Shuffle sequence again
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if(self.shuffle) self.sequence = self.shuffleArray(self.sequence);
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self.init();
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} else
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self.typewrite(self.strings[self.sequence[self.arrayPos]], curStrPos);
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}
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// humanized value for typing
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}, humanize);
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},
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/**
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* Shuffles the numbers in the given array.
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* @param {Array} array
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* @returns {Array}
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*/
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shuffleArray: function(array) {
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var tmp, current, top = array.length;
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if(top) while(--top) {
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current = Math.floor(Math.random() * (top + 1));
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tmp = array[current];
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array[current] = array[top];
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array[top] = tmp;
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}
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return array;
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},
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// Start & Stop currently not working
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// , stop: function() {
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// var self = this;
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// self.stop = true;
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// clearInterval(self.timeout);
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// }
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// , start: function() {
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// var self = this;
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// if(self.stop === false)
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// return;
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// this.stop = false;
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// this.init();
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// }
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// Reset and rebuild the element
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reset: function() {
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var self = this;
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clearInterval(self.timeout);
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var id = this.el.attr('id');
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this.el.empty();
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if (typeof this.cursor !== 'undefined') {
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this.cursor.remove();
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}
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this.strPos = 0;
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this.arrayPos = 0;
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this.curLoop = 0;
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// Send the callback
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this.options.resetCallback();
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}
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};
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$.fn.typed = function(option) {
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return this.each(function() {
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var $this = $(this),
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data = $this.data('typed'),
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options = typeof option == 'object' && option;
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if (data) { data.reset(); }
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$this.data('typed', (data = new Typed(this, options)));
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if (typeof option == 'string') data[option]();
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});
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};
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$.fn.typed.defaults = {
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strings: ["These are the default values...", "You know what you should do?", "Use your own!", "Have a great day!"],
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stringsElement: null,
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// typing speed
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typeSpeed: 0,
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// time before typing starts
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startDelay: 0,
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// backspacing speed
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backSpeed: 0,
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// shuffle the strings
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shuffle: false,
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// time before backspacing
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backDelay: 500,
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// loop
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loop: false,
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// false = infinite
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loopCount: false,
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// show cursor
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showCursor: true,
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// character for cursor
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cursorChar: "|",
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// attribute to type (null == text)
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attr: null,
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// either html or text
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contentType: 'html',
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// call when done callback function
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callback: function() {},
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// starting callback function before each string
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preStringTyped: function() {},
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//callback for every typed string
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onStringTyped: function() {},
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// callback for reset
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resetCallback: function() {}
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};
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}(window.jQuery);
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