87 lines
2 KiB
JavaScript
87 lines
2 KiB
JavaScript
'use strict';
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!function($) {
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function Timer(elem, options, cb) {
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var _this = this,
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duration = options.duration,//options is an object for easily adding features later.
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nameSpace = Object.keys(elem.data())[0] || 'timer',
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remain = -1,
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start,
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timer;
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this.isPaused = false;
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this.restart = function() {
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remain = -1;
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clearTimeout(timer);
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this.start();
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}
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this.start = function() {
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this.isPaused = false;
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// if(!elem.data('paused')){ return false; }//maybe implement this sanity check if used for other things.
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clearTimeout(timer);
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remain = remain <= 0 ? duration : remain;
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elem.data('paused', false);
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start = Date.now();
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timer = setTimeout(function(){
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if(options.infinite){
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_this.restart();//rerun the timer.
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}
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cb();
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}, remain);
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elem.trigger(`timerstart.zf.${nameSpace}`);
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}
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this.pause = function() {
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this.isPaused = true;
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//if(elem.data('paused')){ return false; }//maybe implement this sanity check if used for other things.
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clearTimeout(timer);
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elem.data('paused', true);
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var end = Date.now();
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remain = remain - (end - start);
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elem.trigger(`timerpaused.zf.${nameSpace}`);
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}
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}
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/**
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* Runs a callback function when images are fully loaded.
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* @param {Object} images - Image(s) to check if loaded.
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* @param {Func} callback - Function to execute when image is fully loaded.
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*/
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function onImagesLoaded(images, callback){
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var self = this,
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unloaded = images.length;
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if (unloaded === 0) {
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callback();
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}
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images.each(function() {
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if (this.complete) {
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singleImageLoaded();
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}
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else if (typeof this.naturalWidth !== 'undefined' && this.naturalWidth > 0) {
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singleImageLoaded();
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}
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else {
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$(this).one('load', function() {
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singleImageLoaded();
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});
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}
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});
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function singleImageLoaded() {
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unloaded--;
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if (unloaded === 0) {
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callback();
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}
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}
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}
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Foundation.Timer = Timer;
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Foundation.onImagesLoaded = onImagesLoaded;
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}(jQuery);
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