102 lines
2.2 KiB
JavaScript
102 lines
2.2 KiB
JavaScript
/**
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* jQuery.fastClick.js
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*
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* Work around the 300ms delay for the click event in some mobile browsers.
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*
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* Code based on <http://code.google.com/mobile/articles/fast_buttons.html>
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*
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* @usage
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* $('button').fastClick(function() {alert('clicked!');});
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*
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* @license MIT
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* @author Dave Hulbert (dave1010)
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* @version 1.0.0 2013-01-17
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*/
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/*global document, window, jQuery, Math */
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(function($) {
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$.fn.fastClick = function(handler) {
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return $(this).each(function(){
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$.FastButton($(this)[0], handler);
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});
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};
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$.FastButton = function(element, handler) {
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var startX, startY;
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var reset = function() {
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$(element).unbind('touchend');
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$("body").unbind('touchmove.fastClick');
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};
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var onClick = function(event) {
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event.stopPropagation();
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reset();
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handler.call(this, event);
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if (event.type === 'touchend') {
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$.clickbuster.preventGhostClick(startX, startY);
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}
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};
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var onTouchMove = function(event) {
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if (Math.abs(event.originalEvent.touches[0].clientX - startX) > 10 ||
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Math.abs(event.originalEvent.touches[0].clientY - startY) > 10) {
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reset();
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}
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};
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var onTouchStart = function(event) {
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event.stopPropagation();
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$(element).bind('touchend', onClick);
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$("body").bind('touchmove.fastClick', onTouchMove);
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startX = event.originalEvent.touches[0].clientX;
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startY = event.originalEvent.touches[0].clientY;
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};
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$(element).bind({
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touchstart: onTouchStart,
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click: onClick
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});
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};
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$.clickbuster = {
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coordinates: [],
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preventGhostClick: function(x, y) {
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$.clickbuster.coordinates.push(x, y);
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window.setTimeout($.clickbuster.pop, 2500);
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},
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pop: function() {
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$.clickbuster.coordinates.splice(0, 2);
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},
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onClick: function(event) {
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var x, y, i;
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for (i = 0; i < $.clickbuster.coordinates.length; i += 2) {
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x = $.clickbuster.coordinates[i];
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y = $.clickbuster.coordinates[i + 1];
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if (Math.abs(event.clientX - x) < 25 && Math.abs(event.clientY - y) < 25) {
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event.stopPropagation();
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event.preventDefault();
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}
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}
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}
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};
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$(function(){
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if (document.addEventListener){
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document.addEventListener('click', $.clickbuster.onClick, true);
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} else if (document.attachEvent){
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// for IE 7/8
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document.attachEvent('onclick', $.clickbuster.onClick);
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}
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});
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}(jQuery));
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