252 lines
13 KiB
Plaintext
252 lines
13 KiB
Plaintext
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/*
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_____ _____ _____ _______
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/\ \ /\ \ /\ \ /::\ \
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/::\ \ /::\ \ /::\ \ /::::\ \
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/::::\ \ \:::\ \ /::::\ \ /::::::\ \
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/::::::\ \ \:::\ \ /::::::\ \ /::::::::\ \
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/:::/\:::\ \ \:::\ \ /:::/\:::\ \ /:::/~~\:::\ \
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/:::/__\:::\ \ \:::\ \ /:::/__\:::\ \ /:::/ \:::\ \
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/::::\ \:::\ \ /::::\ \ \:::\ \:::\ \:::/ / \:::\ \
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/::::::\ \:::\ \__ /::::::\ \_\:::\ \:::\ \:/____/ \:::\____\
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/:::/\:::\ \:::\____\ \ /:::/\:::\ \ \:::\ \:::\ \ | |:::| |
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/:::/ \:::\ \:::| | \/:::/ \:::\____\ \:::\ \:::\____\___| |:::|____|
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\::/ |::::\ /:::|____| /:::/ \::/ / \:::\ \::/ / _\___/:::/ /
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\/____|:::::\/:::/ /\/:::/ / \/____/\ \:::\ \/____/:\ |::| /:::/ /
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|:::::::::/ /:::::/ / \:::\ \:::\ \ \:::\|::|/:::/ /
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|::|\::::/ /\::::/____/ \:::\ \:::\____\ \::::::::::/ /
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|::| \::/____/ \:::\ \ \:::\ /:::/ / \::::::::/ /
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|::| ~| \:::\ \ \:::\/:::/ / \::::::/ /
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|::| | \:::\ \ \::::::/ / \::::/____/
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\::| | \:::\____\ \::::/ / |::| |
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\:| | \::/ / \::/ / |::|____|
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\|___| \/____/ \/____/ ~~
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____.________ _____ .___ .___
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| |\_____ \ __ __ ___________ ___.__. / _ \ __| _/__ _______ ____ ____ ____ __| _/
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| | / / \ \| | \_/ __ \_ __ < | | / /_\ \ / __ |\ \/ /\__ \ / \_/ ___\/ __ \ / __ |
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/\__| |/ \_/. \ | /\ ___/| | \/\___ | / | \/ /_/ | \ / / __ \| | \ \__\ ___// /_/ |
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\________|\_____\ \_/____/ \___ >__| / ____| \____|__ /\____ | \_/ (____ /___| /\___ >___ >____ |
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\__> \/ \/ \/ \/ \/ \/ \/ \/ \/
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_______ ___________.__ __
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\ \ ______ _ ________ \__ ___/|__| ____ | | __ ___________
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______ / | \_/ __ \ \/ \/ / ___/ | | | |/ ___\| |/ // __ \_ __ \ ______
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/_____/ / | \ ___/\ /\___ \ | | | \ \___| <\ ___/| | \/ /_____/
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\____|__ /\___ >\/\_//____ > |____| |__|\___ >__|_ \\___ >__|
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\/ \/ \/ \/ \/ \/
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*/
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;
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(function($, window, document, undefined) {
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'use strict';
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// undefined is used here as the undefined global variable in ECMAScript 3 is
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// mutable (ie. it can be hasMoved by someone else). undefined isn't really being
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// passed in so we can ensure the value of it is truly undefined. In ES5, undefined
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// can no longer be modified.
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// window and document are passed through as local variable rather than global
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// as this (slightly) quickens the resolution process and can be more efficiently
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// minified (especially when both are regularly referenced in your plugin).
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// Create the defaults once
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var pluginName = 'newsTicker',
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defaults = {
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row_height: 20,
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max_rows: 3,
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speed: 400,
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duration: 2500,
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direction: 'up',
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autostart: 1,
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pauseOnHover: 1,
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nextButton: null,
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prevButton: null,
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startButton: null,
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stopButton: null,
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hasMoved: function() {},
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movingUp: function() {},
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movingDown: function() {},
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start: function() {},
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stop: function() {},
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pause: function() {},
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unpause: function() {}
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};
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// The actual plugin constructor
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function Plugin(element, options) {
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this.element = element;
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this.$el = $(element);
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this.options = $.extend({}, defaults, options);
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this._defaults = defaults;
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this._name = pluginName;
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this.moveInterval;
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this.state = 0;
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this.paused = 0;
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this.moving = 0;
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if (this.$el.is('ul')) {
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this.init();
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}
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}
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Plugin.prototype = {
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init: function() {
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this.$el.height(this.options.row_height * this.options.max_rows)
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.css({overflow : 'hidden'});
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this.checkSpeed();
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if(this.options.nextButton && typeof(this.options.nextButton[0]) !== 'undefined')
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this.options.nextButton.click(function(e) {
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this.moveNext();
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this.resetInterval();
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}.bind(this));
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if(this.options.prevButton && typeof(this.options.prevButton[0]) !== 'undefined')
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this.options.prevButton.click(function(e) {
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this.movePrev();
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this.resetInterval();
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}.bind(this));
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if(this.options.stopButton && typeof(this.options.stopButton[0]) !== 'undefined')
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this.options.stopButton.click(function(e) {
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this.stop()
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}.bind(this));
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if(this.options.startButton && typeof(this.options.startButton[0]) !== 'undefined')
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this.options.startButton.click(function(e) {
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this.start()
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}.bind(this));
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if(this.options.pauseOnHover) {
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this.$el.hover(function() {
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if (this.state)
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this.pause();
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}.bind(this), function() {
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if (this.state)
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this.unpause();
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}.bind(this));
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}
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if(this.options.autostart)
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this.start();
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},
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start: function() {
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if (!this.state) {
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this.state = 1;
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this.resetInterval();
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this.options.start();
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}
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},
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stop: function() {
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if (this.state) {
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clearInterval(this.moveInterval);
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this.state = 0;
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this.options.stop();
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}
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},
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resetInterval: function() {
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if (this.state) {
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clearInterval(this.moveInterval);
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this.moveInterval = setInterval(function() {this.move()}.bind(this), this.options.duration);
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}
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},
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move: function() {
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if (!this.paused) this.moveNext();
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},
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moveNext: function() {
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if (this.options.direction === 'down')
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this.moveDown();
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else if (this.options.direction === 'up')
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this.moveUp();
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},
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movePrev: function() {
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if (this.options.direction === 'down')
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this.moveUp();
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else if (this.options.direction === 'up')
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this.moveDown();
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},
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pause: function() {
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if (!this.paused) this.paused = 1;
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this.options.pause();
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},
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unpause: function() {
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if (this.paused) this.paused = 0;
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this.options.unpause();
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},
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moveDown: function() {
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if (!this.moving) {
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this.moving = 1;
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this.options.movingDown();
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this.$el.children('li:last').detach().prependTo(this.$el).css('marginTop', '-' + this.options.row_height + 'px')
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.animate({marginTop: '0px'}, this.options.speed, function(){
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this.moving = 0;
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this.options.hasMoved();
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}.bind(this));
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}
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},
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moveUp: function() {
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if (!this.moving) {
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this.moving = 1;
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this.options.movingUp();
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var element = this.$el.children('li:first');
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element.animate({marginTop: '-' + this.options.row_height + 'px'}, this.options.speed,
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function(){
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element.detach().css('marginTop', '0').appendTo(this.$el);
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this.moving = 0;
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this.options.hasMoved();
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}.bind(this));
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}
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},
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updateOption: function(option, value) {
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if (typeof(this.options[option]) !== 'undefined'){
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this.options[option] = value;
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if (option == 'duration' || option == 'speed'){
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this.checkSpeed();
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this.resetInterval();
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}
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}
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},
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getState: function() {
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if (paused) return 2
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else return this.state;//0 = stopped, 1 = started
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},
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checkSpeed: function() {
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if (this.options.duration < (this.options.speed + 25))
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this.options.speed = this.options.duration - 25;
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},
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destroy: function() {
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this._destroy(); //or this.delete; depends on jQuery version
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}
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};
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// A really lightweight plugin wrapper around the constructor,
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// preventing against multiple instantiations
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$.fn[pluginName] = function(option) {
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var args = arguments;
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return this.each(function() {
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var $this = $(this),
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data = $.data(this, 'plugin_' + pluginName),
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options = typeof option === 'object' && option;
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if (!data) {
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$this.data('plugin_' + pluginName, (data = new Plugin(this, options)));
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}
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// if first argument is a string, call silimarly named function
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// this gives flexibility to call functions of the plugin e.g.
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// - $('.dial').plugin('destroy');
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// - $('.dial').plugin('render', $('.new-child'));
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if (typeof option === 'string') {
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data[option].apply(data, Array.prototype.slice.call(args, 1));
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}
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});
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};
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})(jQuery, window, document);
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