/*jshint multistr:true, curly: false */ /*global jQuery:false, define: false */ /** * jRange - Awesome range control * * Written by * ---------- * Nitin Hayaran (nitinhayaran@gmail.com) * * Licensed under the MIT (MIT-LICENSE.txt). * * @author Nitin Hayaran * @version 0.1-RELEASE * * Dependencies * ------------ * jQuery (http://jquery.com) * **/ ; (function($, window, document, undefined) { 'use strict'; var jRange = function() { return this.init.apply(this, arguments); }; jRange.prototype = { defaults: { onstatechange: function() {}, isRange: false, showLabels: true, showScale: true, step: 1, format: '%s', theme: 'theme-green', width: 300, disable: false }, template: '
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123456
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456789
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', init: function(node, options) { this.options = $.extend({}, this.defaults, options); this.inputNode = $(node); this.options.value = this.inputNode.val() || (this.options.isRange ? this.options.from + ',' + this.options.from : this.options.from); this.domNode = $(this.template); this.domNode.addClass(this.options.theme); this.inputNode.after(this.domNode); this.domNode.on('change', this.onChange); this.pointers = $('.pointer', this.domNode); this.lowPointer = this.pointers.first(); this.highPointer = this.pointers.last(); this.labels = $('.pointer-label', this.domNode); this.lowLabel = this.labels.first(); this.highLabel = this.labels.last(); this.scale = $('.scale', this.domNode); this.bar = $('.selected-bar', this.domNode); this.clickableBar = this.domNode.find('.clickable-dummy'); this.interval = this.options.to - this.options.from; this.render(); }, render: function() { // Check if inputNode is visible, and have some width, so that we can set slider width accordingly. if (this.inputNode.width() === 0 && !this.options.width) { console.log('jRange : no width found, returning'); return; } else { this.domNode.css('width', this.options.width || this.inputNode.width()); this.inputNode.hide(); } if (this.isSingle()) { this.lowPointer.hide(); this.lowLabel.hide(); } if (!this.options.showLabels) { this.labels.hide(); } this.attachEvents(); if (this.options.showScale) { this.renderScale(); } this.setValue(this.options.value); }, isSingle: function() { if (typeof(this.options.value) === 'number') { return true; } return (this.options.value.indexOf(',') !== -1 || this.options.isRange) ? false : true; }, attachEvents: function() { this.clickableBar.click($.proxy(this.barClicked, this)); this.pointers.on('mousedown touchstart', $.proxy(this.onDragStart, this)); this.pointers.bind('dragstart', function(event) { event.preventDefault(); }); }, onDragStart: function(e) { if ( this.options.disable || (e.type === 'mousedown' && e.which !== 1)) { return; } e.stopPropagation(); e.preventDefault(); var pointer = $(e.target); this.pointers.removeClass('last-active'); pointer.addClass('focused last-active'); this[(pointer.hasClass('low') ? 'low' : 'high') + 'Label'].addClass('focused'); $(document).on('mousemove.slider touchmove.slider', $.proxy(this.onDrag, this, pointer)); $(document).on('mouseup.slider touchend.slider touchcancel.slider', $.proxy(this.onDragEnd, this)); }, onDrag: function(pointer, e) { e.stopPropagation(); e.preventDefault(); if (e.originalEvent.touches && e.originalEvent.touches.length) { e = e.originalEvent.touches[0]; } else if (e.originalEvent.changedTouches && e.originalEvent.changedTouches.length) { e = e.originalEvent.changedTouches[0]; } var position = e.clientX - this.domNode.offset().left; this.domNode.trigger('change', [this, pointer, position]); }, onDragEnd: function(e) { this.pointers.removeClass('focused'); this.labels.removeClass('focused'); $(document).off('.slider'); }, barClicked: function(e) { if(this.options.disable) return; var x = e.pageX - this.clickableBar.offset().left; if (this.isSingle()) this.setPosition(this.pointers.last(), x, true, true); else { var pointer = Math.abs(parseInt(this.pointers.first().css('left'), 10) - x + this.pointers.first().width() / 2) < Math.abs(parseInt(this.pointers.last().css('left'), 10) - x + this.pointers.first().width() / 2) ? this.pointers.first() : this.pointers.last(); this.setPosition(pointer, x, true, true); } }, onChange: function(e, self, pointer, position) { var min, max; if (self.isSingle()) { min = 0; max = self.domNode.width(); } else { min = pointer.hasClass('high') ? self.lowPointer.position().left + self.lowPointer.width() / 2 : 0; max = pointer.hasClass('low') ? self.highPointer.position().left + self.highPointer.width() / 2 : self.domNode.width(); } var value = Math.min(Math.max(position, min), max); self.setPosition(pointer, value, true); }, setPosition: function(pointer, position, isPx, animate) { var leftPos, lowPos = this.lowPointer.position().left, highPos = this.highPointer.position().left, circleWidth = this.highPointer.width() / 2; if (!isPx) { position = this.prcToPx(position); } if (pointer[0] === this.highPointer[0]) { highPos = Math.round(position - circleWidth); } else { lowPos = Math.round(position - circleWidth); } pointer[animate ? 'animate' : 'css']({ 'left': Math.round(position - circleWidth) }); if (this.isSingle()) { leftPos = 0; } else { leftPos = lowPos + circleWidth; } this.bar[animate ? 'animate' : 'css']({ 'width': Math.round(highPos + circleWidth - leftPos), 'left': leftPos }); this.showPointerValue(pointer, position, animate); this.isReadonly(); }, // will be called from outside setValue: function(value) { var values = value.toString().split(','); this.options.value = value; var prc = this.valuesToPrc(values.length === 2 ? values : [0, values[0]]); if (this.isSingle()) { this.setPosition(this.highPointer, prc[1]); } else { this.setPosition(this.lowPointer, prc[0]); this.setPosition(this.highPointer, prc[1]); } }, renderScale: function() { var s = this.options.scale || [this.options.from, this.options.to]; var prc = Math.round((100 / (s.length - 1)) * 10) / 10; var str = ''; for (var i = 0; i < s.length; i++) { str += '' + (s[i] != '|' ? '' + s[i] + '' : '') + ''; } this.scale.html(str); $('ins', this.scale).each(function() { $(this).css({ marginLeft: -$(this).outerWidth() / 2 }); }); }, getBarWidth: function() { var values = this.options.value.split(','); if (values.length > 1) { return parseInt(values[1], 10) - parseInt(values[0], 10); } else { return parseInt(values[0], 10); } }, showPointerValue: function(pointer, position, animate) { var label = $('.pointer-label', this.domNode)[pointer.hasClass('low') ? 'first' : 'last'](); var text; var value = this.positionToValue(position); if ($.isFunction(this.options.format)) { var type = this.isSingle() ? undefined : (pointer.hasClass('low') ? 'low' : 'high'); text = this.options.format(value, type); } else { text = this.options.format.replace('%s', value); } var width = label.html(text).width(), left = position - width / 2; left = Math.min(Math.max(left, 0), this.options.width - width); label[animate ? 'animate' : 'css']({ left: left }); this.setInputValue(pointer, value); }, valuesToPrc: function(values) { var lowPrc = ((values[0] - this.options.from) * 100 / this.interval), highPrc = ((values[1] - this.options.from) * 100 / this.interval); return [lowPrc, highPrc]; }, prcToPx: function(prc) { return (this.domNode.width() * prc) / 100; }, positionToValue: function(pos) { var value = (pos / this.domNode.width()) * this.interval; value = value + this.options.from; return Math.round(value / this.options.step) * this.options.step; }, setInputValue: function(pointer, v) { // if(!isChanged) return; if (this.isSingle()) { this.options.value = v.toString(); } else { var values = this.options.value.split(','); if (pointer.hasClass('low')) { this.options.value = v + ',' + values[1]; } else { this.options.value = values[0] + ',' + v; } } if (this.inputNode.val() !== this.options.value) { this.inputNode.val(this.options.value); this.options.onstatechange.call(this, this.options.value); } }, getValue: function() { return this.options.value; }, isReadonly: function(){ this.domNode.toggleClass('slider-readonly', this.options.disable); }, disable: function(){ this.options.disable = true; this.isReadonly(); }, enable: function(){ this.options.disable = false; this.isReadonly(); }, toggleDisable: function(){ this.options.disable = !this.options.disable; this.isReadonly(); } }; /*$.jRange = function (node, options) { var jNode = $(node); if(!jNode.data('jrange')){ jNode.data('jrange', new jRange(node, options)); } return jNode.data('jrange'); }; $.fn.jRange = function (options) { return this.each(function(){ $.jRange(this, options); }); };*/ var pluginName = 'jRange'; // A really lightweight plugin wrapper around the constructor, // preventing against multiple instantiations $.fn[pluginName] = function(option) { var args = arguments, result; this.each(function() { var $this = $(this), data = $.data(this, 'plugin_' + pluginName), options = typeof option === 'object' && option; if (!data) { $this.data('plugin_' + pluginName, (data = new jRange(this, options))); $(window).resize(function() { data.setValue(data.getValue()); }); // Update slider position when window is resized to keep it in sync with scale } // if first argument is a string, call silimarly named function // this gives flexibility to call functions of the plugin e.g. // - $('.dial').plugin('destroy'); // - $('.dial').plugin('render', $('.new-child')); if (typeof option === 'string') { result = data[option].apply(data, Array.prototype.slice.call(args, 1)); } }); // To enable plugin returns values return result || this; }; })(jQuery, window, document);