1577 lines
50 KiB
JavaScript
1577 lines
50 KiB
JavaScript
/*! =========================================================
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* bootstrap-slider.js
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*
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* Maintainers:
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* Kyle Kemp
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* - Twitter: @seiyria
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* - Github: seiyria
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* Rohit Kalkur
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* - Twitter: @Rovolutionary
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* - Github: rovolution
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*
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* =========================================================
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* ========================================================= */
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/**
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* Bridget makes jQuery widgets
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* v1.0.1
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* MIT license
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*/
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(function(root, factory) {
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if(typeof define === "function" && define.amd) {
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define(["jquery"], factory);
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}
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else if(typeof module === "object" && module.exports) {
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var jQuery;
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try {
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jQuery = require("jquery");
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}
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catch (err) {
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jQuery = null;
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}
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module.exports = factory(jQuery);
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}
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else {
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root.Slider = factory(root.jQuery);
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}
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}(this, function($) {
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// Reference to Slider constructor
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var Slider;
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(function( $ ) {
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'use strict';
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// -------------------------- utils -------------------------- //
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var slice = Array.prototype.slice;
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function noop() {}
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// -------------------------- definition -------------------------- //
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function defineBridget( $ ) {
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// bail if no jQuery
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if ( !$ ) {
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return;
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}
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// -------------------------- addOptionMethod -------------------------- //
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/**
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* adds option method -> $().plugin('option', {...})
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* @param {Function} PluginClass - constructor class
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*/
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function addOptionMethod( PluginClass ) {
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// don't overwrite original option method
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if ( PluginClass.prototype.option ) {
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return;
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}
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// option setter
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PluginClass.prototype.option = function( opts ) {
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// bail out if not an object
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if ( !$.isPlainObject( opts ) ){
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return;
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}
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this.options = $.extend( true, this.options, opts );
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};
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}
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// -------------------------- plugin bridge -------------------------- //
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// helper function for logging errors
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// $.error breaks jQuery chaining
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var logError = typeof console === 'undefined' ? noop :
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function( message ) {
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console.error( message );
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};
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/**
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* jQuery plugin bridge, access methods like $elem.plugin('method')
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* @param {String} namespace - plugin name
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* @param {Function} PluginClass - constructor class
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*/
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function bridge( namespace, PluginClass ) {
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// add to jQuery fn namespace
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$.fn[ namespace ] = function( options ) {
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if ( typeof options === 'string' ) {
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// call plugin method when first argument is a string
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// get arguments for method
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var args = slice.call( arguments, 1 );
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for ( var i=0, len = this.length; i < len; i++ ) {
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var elem = this[i];
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var instance = $.data( elem, namespace );
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if ( !instance ) {
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logError( "cannot call methods on " + namespace + " prior to initialization; " +
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"attempted to call '" + options + "'" );
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continue;
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}
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if ( !$.isFunction( instance[options] ) || options.charAt(0) === '_' ) {
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logError( "no such method '" + options + "' for " + namespace + " instance" );
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continue;
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}
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// trigger method with arguments
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var returnValue = instance[ options ].apply( instance, args);
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// break look and return first value if provided
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if ( returnValue !== undefined && returnValue !== instance) {
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return returnValue;
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}
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}
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// return this if no return value
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return this;
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} else {
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var objects = this.map( function() {
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var instance = $.data( this, namespace );
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if ( instance ) {
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// apply options & init
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instance.option( options );
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instance._init();
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} else {
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// initialize new instance
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instance = new PluginClass( this, options );
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$.data( this, namespace, instance );
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}
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return $(this);
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});
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if(!objects || objects.length > 1) {
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return objects;
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} else {
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return objects[0];
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}
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}
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};
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}
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// -------------------------- bridget -------------------------- //
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/**
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* converts a Prototypical class into a proper jQuery plugin
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* the class must have a ._init method
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* @param {String} namespace - plugin name, used in $().pluginName
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* @param {Function} PluginClass - constructor class
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*/
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$.bridget = function( namespace, PluginClass ) {
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addOptionMethod( PluginClass );
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bridge( namespace, PluginClass );
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};
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return $.bridget;
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}
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// get jquery from browser global
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defineBridget( $ );
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})( $ );
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/*************************************************
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BOOTSTRAP-SLIDER SOURCE CODE
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**************************************************/
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(function($) {
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var ErrorMsgs = {
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formatInvalidInputErrorMsg : function(input) {
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return "Invalid input value '" + input + "' passed in";
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},
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callingContextNotSliderInstance : "Calling context element does not have instance of Slider bound to it. Check your code to make sure the JQuery object returned from the call to the slider() initializer is calling the method"
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};
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var SliderScale = {
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linear: {
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toValue: function(percentage) {
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var rawValue = percentage/100 * (this.options.max - this.options.min);
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if (this.options.ticks_positions.length > 0) {
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var minv, maxv, minp, maxp = 0;
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for (var i = 0; i < this.options.ticks_positions.length; i++) {
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if (percentage <= this.options.ticks_positions[i]) {
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minv = (i > 0) ? this.options.ticks[i-1] : 0;
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minp = (i > 0) ? this.options.ticks_positions[i-1] : 0;
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maxv = this.options.ticks[i];
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maxp = this.options.ticks_positions[i];
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break;
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}
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}
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if (i > 0) {
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var partialPercentage = (percentage - minp) / (maxp - minp);
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rawValue = minv + partialPercentage * (maxv - minv);
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}
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}
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var value = this.options.min + Math.round(rawValue / this.options.step) * this.options.step;
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if (value < this.options.min) {
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return this.options.min;
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} else if (value > this.options.max) {
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return this.options.max;
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} else {
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return value;
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}
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},
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toPercentage: function(value) {
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if (this.options.max === this.options.min) {
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return 0;
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}
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if (this.options.ticks_positions.length > 0) {
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var minv, maxv, minp, maxp = 0;
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for (var i = 0; i < this.options.ticks.length; i++) {
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if (value <= this.options.ticks[i]) {
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minv = (i > 0) ? this.options.ticks[i-1] : 0;
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minp = (i > 0) ? this.options.ticks_positions[i-1] : 0;
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maxv = this.options.ticks[i];
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maxp = this.options.ticks_positions[i];
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break;
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}
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}
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if (i > 0) {
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var partialPercentage = (value - minv) / (maxv - minv);
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return minp + partialPercentage * (maxp - minp);
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}
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}
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return 100 * (value - this.options.min) / (this.options.max - this.options.min);
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}
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},
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logarithmic: {
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/* Based on http://stackoverflow.com/questions/846221/logarithmic-slider */
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toValue: function(percentage) {
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var min = (this.options.min === 0) ? 0 : Math.log(this.options.min);
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var max = Math.log(this.options.max);
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var value = Math.exp(min + (max - min) * percentage / 100);
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value = this.options.min + Math.round((value - this.options.min) / this.options.step) * this.options.step;
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/* Rounding to the nearest step could exceed the min or
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* max, so clip to those values. */
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if (value < this.options.min) {
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return this.options.min;
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} else if (value > this.options.max) {
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return this.options.max;
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} else {
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return value;
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}
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},
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toPercentage: function(value) {
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if (this.options.max === this.options.min) {
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return 0;
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} else {
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var max = Math.log(this.options.max);
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var min = this.options.min === 0 ? 0 : Math.log(this.options.min);
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var v = value === 0 ? 0 : Math.log(value);
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return 100 * (v - min) / (max - min);
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}
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}
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}
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};
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/*************************************************
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CONSTRUCTOR
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**************************************************/
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Slider = function(element, options) {
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createNewSlider.call(this, element, options);
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return this;
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};
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function createNewSlider(element, options) {
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/*
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The internal state object is used to store data about the current 'state' of slider.
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This includes values such as the `value`, `enabled`, etc...
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*/
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this._state = {
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value: null,
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enabled: null,
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offset: null,
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size: null,
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percentage: null,
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inDrag: false,
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over: false
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};
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if(typeof element === "string") {
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this.element = document.querySelector(element);
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} else if(element instanceof HTMLElement) {
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this.element = element;
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}
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/*************************************************
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Process Options
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**************************************************/
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options = options ? options : {};
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var optionTypes = Object.keys(this.defaultOptions);
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for(var i = 0; i < optionTypes.length; i++) {
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var optName = optionTypes[i];
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// First check if an option was passed in via the constructor
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var val = options[optName];
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// If no data attrib, then check data atrributes
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val = (typeof val !== 'undefined') ? val : getDataAttrib(this.element, optName);
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// Finally, if nothing was specified, use the defaults
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val = (val !== null) ? val : this.defaultOptions[optName];
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// Set all options on the instance of the Slider
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if(!this.options) {
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this.options = {};
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}
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this.options[optName] = val;
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}
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/*
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Validate `tooltip_position` against 'orientation`
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- if `tooltip_position` is incompatible with orientation, swith it to a default compatible with specified `orientation`
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-- default for "vertical" -> "right"
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-- default for "horizontal" -> "left"
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*/
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if(this.options.orientation === "vertical" && (this.options.tooltip_position === "top" || this.options.tooltip_position === "bottom")) {
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this.options.tooltip_position = "right";
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}
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else if(this.options.orientation === "horizontal" && (this.options.tooltip_position === "left" || this.options.tooltip_position === "right")) {
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this.options.tooltip_position = "top";
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}
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function getDataAttrib(element, optName) {
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var dataName = "data-slider-" + optName.replace(/_/g, '-');
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var dataValString = element.getAttribute(dataName);
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try {
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return JSON.parse(dataValString);
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}
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catch(err) {
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return dataValString;
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}
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}
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/*************************************************
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Create Markup
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**************************************************/
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var origWidth = this.element.style.width;
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var updateSlider = false;
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var parent = this.element.parentNode;
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var sliderTrackSelection;
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var sliderTrackLow, sliderTrackHigh;
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var sliderMinHandle;
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var sliderMaxHandle;
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if (this.sliderElem) {
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updateSlider = true;
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} else {
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/* Create elements needed for slider */
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this.sliderElem = document.createElement("div");
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this.sliderElem.className = "slider";
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/* Create slider track elements */
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var sliderTrack = document.createElement("div");
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sliderTrack.className = "slider-track";
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sliderTrackLow = document.createElement("div");
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sliderTrackLow.className = "slider-track-low";
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sliderTrackSelection = document.createElement("div");
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sliderTrackSelection.className = "slider-selection";
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sliderTrackHigh = document.createElement("div");
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sliderTrackHigh.className = "slider-track-high";
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sliderMinHandle = document.createElement("div");
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sliderMinHandle.className = "slider-handle min-slider-handle";
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sliderMinHandle.setAttribute('role', 'slider');
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sliderMinHandle.setAttribute('aria-valuemin', this.options.min);
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sliderMinHandle.setAttribute('aria-valuemax', this.options.max);
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sliderMaxHandle = document.createElement("div");
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sliderMaxHandle.className = "slider-handle max-slider-handle";
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sliderMaxHandle.setAttribute('role', 'slider');
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sliderMaxHandle.setAttribute('aria-valuemin', this.options.min);
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sliderMaxHandle.setAttribute('aria-valuemax', this.options.max);
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sliderTrack.appendChild(sliderTrackLow);
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sliderTrack.appendChild(sliderTrackSelection);
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sliderTrack.appendChild(sliderTrackHigh);
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/* Add aria-labelledby to handle's */
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var isLabelledbyArray = Array.isArray(this.options.labelledby);
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if (isLabelledbyArray && this.options.labelledby[0]) {
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sliderMinHandle.setAttribute('aria-labelledby', this.options.labelledby[0]);
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}
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if (isLabelledbyArray && this.options.labelledby[1]) {
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sliderMaxHandle.setAttribute('aria-labelledby', this.options.labelledby[1]);
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}
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if (!isLabelledbyArray && this.options.labelledby) {
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sliderMinHandle.setAttribute('aria-labelledby', this.options.labelledby);
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sliderMaxHandle.setAttribute('aria-labelledby', this.options.labelledby);
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}
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/* Create ticks */
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this.ticks = [];
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if (Array.isArray(this.options.ticks) && this.options.ticks.length > 0) {
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for (i = 0; i < this.options.ticks.length; i++) {
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var tick = document.createElement('div');
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tick.className = 'slider-tick';
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this.ticks.push(tick);
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sliderTrack.appendChild(tick);
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}
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sliderTrackSelection.className += " tick-slider-selection";
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}
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sliderTrack.appendChild(sliderMinHandle);
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sliderTrack.appendChild(sliderMaxHandle);
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this.tickLabels = [];
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if (Array.isArray(this.options.ticks_labels) && this.options.ticks_labels.length > 0) {
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this.tickLabelContainer = document.createElement('div');
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this.tickLabelContainer.className = 'slider-tick-label-container';
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for (i = 0; i < this.options.ticks_labels.length; i++) {
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var label = document.createElement('div');
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var noTickPositionsSpecified = this.options.ticks_positions.length === 0;
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var tickLabelsIndex = (this.options.reversed && noTickPositionsSpecified) ? (this.options.ticks_labels.length - (i + 1)) : i;
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label.className = 'slider-tick-label';
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label.innerHTML = this.options.ticks_labels[tickLabelsIndex];
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this.tickLabels.push(label);
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this.tickLabelContainer.appendChild(label);
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}
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}
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var createAndAppendTooltipSubElements = function(tooltipElem) {
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var arrow = document.createElement("div");
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arrow.className = "tooltip-arrow";
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var inner = document.createElement("div");
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inner.className = "tooltip-inner";
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tooltipElem.appendChild(arrow);
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tooltipElem.appendChild(inner);
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};
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/* Create tooltip elements */
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var sliderTooltip = document.createElement("div");
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sliderTooltip.className = "tooltip tooltip-main";
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sliderTooltip.setAttribute('role', 'presentation');
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createAndAppendTooltipSubElements(sliderTooltip);
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var sliderTooltipMin = document.createElement("div");
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sliderTooltipMin.className = "tooltip tooltip-min";
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sliderTooltipMin.setAttribute('role', 'presentation');
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createAndAppendTooltipSubElements(sliderTooltipMin);
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var sliderTooltipMax = document.createElement("div");
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sliderTooltipMax.className = "tooltip tooltip-max";
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sliderTooltipMax.setAttribute('role', 'presentation');
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createAndAppendTooltipSubElements(sliderTooltipMax);
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/* Append components to sliderElem */
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this.sliderElem.appendChild(sliderTrack);
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this.sliderElem.appendChild(sliderTooltip);
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this.sliderElem.appendChild(sliderTooltipMin);
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this.sliderElem.appendChild(sliderTooltipMax);
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if (this.tickLabelContainer) {
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this.sliderElem.appendChild(this.tickLabelContainer);
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}
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/* Append slider element to parent container, right before the original <input> element */
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parent.insertBefore(this.sliderElem, this.element);
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/* Hide original <input> element */
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this.element.style.display = "none";
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}
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/* If JQuery exists, cache JQ references */
|
|
if($) {
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this.$element = $(this.element);
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this.$sliderElem = $(this.sliderElem);
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}
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/*************************************************
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|
|
|
Setup
|
|
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**************************************************/
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this.eventToCallbackMap = {};
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this.sliderElem.id = this.options.id;
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this.touchCapable = 'ontouchstart' in window || (window.DocumentTouch && document instanceof window.DocumentTouch);
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this.tooltip = this.sliderElem.querySelector('.tooltip-main');
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this.tooltipInner = this.tooltip.querySelector('.tooltip-inner');
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this.tooltip_min = this.sliderElem.querySelector('.tooltip-min');
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this.tooltipInner_min = this.tooltip_min.querySelector('.tooltip-inner');
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this.tooltip_max = this.sliderElem.querySelector('.tooltip-max');
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this.tooltipInner_max= this.tooltip_max.querySelector('.tooltip-inner');
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|
|
if (SliderScale[this.options.scale]) {
|
|
this.options.scale = SliderScale[this.options.scale];
|
|
}
|
|
|
|
if (updateSlider === true) {
|
|
// Reset classes
|
|
this._removeClass(this.sliderElem, 'slider-horizontal');
|
|
this._removeClass(this.sliderElem, 'slider-vertical');
|
|
this._removeClass(this.tooltip, 'hide');
|
|
this._removeClass(this.tooltip_min, 'hide');
|
|
this._removeClass(this.tooltip_max, 'hide');
|
|
|
|
// Undo existing inline styles for track
|
|
["left", "top", "width", "height"].forEach(function(prop) {
|
|
this._removeProperty(this.trackLow, prop);
|
|
this._removeProperty(this.trackSelection, prop);
|
|
this._removeProperty(this.trackHigh, prop);
|
|
}, this);
|
|
|
|
// Undo inline styles on handles
|
|
[this.handle1, this.handle2].forEach(function(handle) {
|
|
this._removeProperty(handle, 'left');
|
|
this._removeProperty(handle, 'top');
|
|
}, this);
|
|
|
|
// Undo inline styles and classes on tooltips
|
|
[this.tooltip, this.tooltip_min, this.tooltip_max].forEach(function(tooltip) {
|
|
this._removeProperty(tooltip, 'left');
|
|
this._removeProperty(tooltip, 'top');
|
|
this._removeProperty(tooltip, 'margin-left');
|
|
this._removeProperty(tooltip, 'margin-top');
|
|
|
|
this._removeClass(tooltip, 'right');
|
|
this._removeClass(tooltip, 'top');
|
|
}, this);
|
|
}
|
|
|
|
if(this.options.orientation === 'vertical') {
|
|
this._addClass(this.sliderElem,'slider-vertical');
|
|
this.stylePos = 'top';
|
|
this.mousePos = 'pageY';
|
|
this.sizePos = 'offsetHeight';
|
|
} else {
|
|
this._addClass(this.sliderElem, 'slider-horizontal');
|
|
this.sliderElem.style.width = origWidth;
|
|
this.options.orientation = 'horizontal';
|
|
this.stylePos = 'left';
|
|
this.mousePos = 'pageX';
|
|
this.sizePos = 'offsetWidth';
|
|
|
|
}
|
|
this._setTooltipPosition();
|
|
/* In case ticks are specified, overwrite the min and max bounds */
|
|
if (Array.isArray(this.options.ticks) && this.options.ticks.length > 0) {
|
|
this.options.max = Math.max.apply(Math, this.options.ticks);
|
|
this.options.min = Math.min.apply(Math, this.options.ticks);
|
|
}
|
|
|
|
if (Array.isArray(this.options.value)) {
|
|
this.options.range = true;
|
|
this._state.value = this.options.value;
|
|
}
|
|
else if (this.options.range) {
|
|
// User wants a range, but value is not an array
|
|
this._state.value = [this.options.value, this.options.max];
|
|
}
|
|
else {
|
|
this._state.value = this.options.value;
|
|
}
|
|
|
|
this.trackLow = sliderTrackLow || this.trackLow;
|
|
this.trackSelection = sliderTrackSelection || this.trackSelection;
|
|
this.trackHigh = sliderTrackHigh || this.trackHigh;
|
|
|
|
if (this.options.selection === 'none') {
|
|
this._addClass(this.trackLow, 'hide');
|
|
this._addClass(this.trackSelection, 'hide');
|
|
this._addClass(this.trackHigh, 'hide');
|
|
}
|
|
|
|
this.handle1 = sliderMinHandle || this.handle1;
|
|
this.handle2 = sliderMaxHandle || this.handle2;
|
|
|
|
if (updateSlider === true) {
|
|
// Reset classes
|
|
this._removeClass(this.handle1, 'round triangle');
|
|
this._removeClass(this.handle2, 'round triangle hide');
|
|
|
|
for (i = 0; i < this.ticks.length; i++) {
|
|
this._removeClass(this.ticks[i], 'round triangle hide');
|
|
}
|
|
}
|
|
|
|
var availableHandleModifiers = ['round', 'triangle', 'custom'];
|
|
var isValidHandleType = availableHandleModifiers.indexOf(this.options.handle) !== -1;
|
|
if (isValidHandleType) {
|
|
this._addClass(this.handle1, this.options.handle);
|
|
this._addClass(this.handle2, this.options.handle);
|
|
|
|
for (i = 0; i < this.ticks.length; i++) {
|
|
this._addClass(this.ticks[i], this.options.handle);
|
|
}
|
|
}
|
|
|
|
this._state.offset = this._offset(this.sliderElem);
|
|
this._state.size = this.sliderElem[this.sizePos];
|
|
this.setValue(this._state.value);
|
|
|
|
/******************************************
|
|
|
|
Bind Event Listeners
|
|
|
|
******************************************/
|
|
|
|
// Bind keyboard handlers
|
|
this.handle1Keydown = this._keydown.bind(this, 0);
|
|
this.handle1.addEventListener("keydown", this.handle1Keydown, false);
|
|
|
|
this.handle2Keydown = this._keydown.bind(this, 1);
|
|
this.handle2.addEventListener("keydown", this.handle2Keydown, false);
|
|
|
|
this.mousedown = this._mousedown.bind(this);
|
|
if (this.touchCapable) {
|
|
// Bind touch handlers
|
|
this.sliderElem.addEventListener("touchstart", this.mousedown, false);
|
|
}
|
|
this.sliderElem.addEventListener("mousedown", this.mousedown, false);
|
|
|
|
|
|
// Bind tooltip-related handlers
|
|
if(this.options.tooltip === 'hide') {
|
|
this._addClass(this.tooltip, 'hide');
|
|
this._addClass(this.tooltip_min, 'hide');
|
|
this._addClass(this.tooltip_max, 'hide');
|
|
}
|
|
else if(this.options.tooltip === 'always') {
|
|
this._showTooltip();
|
|
this._alwaysShowTooltip = true;
|
|
}
|
|
else {
|
|
this.showTooltip = this._showTooltip.bind(this);
|
|
this.hideTooltip = this._hideTooltip.bind(this);
|
|
|
|
this.sliderElem.addEventListener("mouseenter", this.showTooltip, false);
|
|
this.sliderElem.addEventListener("mouseleave", this.hideTooltip, false);
|
|
|
|
this.handle1.addEventListener("focus", this.showTooltip, false);
|
|
this.handle1.addEventListener("blur", this.hideTooltip, false);
|
|
|
|
this.handle2.addEventListener("focus", this.showTooltip, false);
|
|
this.handle2.addEventListener("blur", this.hideTooltip, false);
|
|
}
|
|
|
|
if(this.options.enabled) {
|
|
this.enable();
|
|
} else {
|
|
this.disable();
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*************************************************
|
|
|
|
INSTANCE PROPERTIES/METHODS
|
|
|
|
- Any methods bound to the prototype are considered
|
|
part of the plugin's `public` interface
|
|
|
|
**************************************************/
|
|
Slider.prototype = {
|
|
_init: function() {}, // NOTE: Must exist to support bridget
|
|
|
|
constructor: Slider,
|
|
|
|
defaultOptions: {
|
|
id: "",
|
|
min: 0,
|
|
max: 10,
|
|
step: 1,
|
|
precision: 0,
|
|
orientation: 'horizontal',
|
|
value: 5,
|
|
range: false,
|
|
selection: 'before',
|
|
tooltip: 'show',
|
|
tooltip_split: false,
|
|
handle: 'round',
|
|
reversed: false,
|
|
enabled: true,
|
|
formatter: function(val) {
|
|
if (Array.isArray(val)) {
|
|
return val[0] + " : " + val[1];
|
|
} else {
|
|
return val;
|
|
}
|
|
},
|
|
natural_arrow_keys: false,
|
|
ticks: [],
|
|
ticks_positions: [],
|
|
ticks_labels: [],
|
|
ticks_snap_bounds: 0,
|
|
scale: 'linear',
|
|
focus: false,
|
|
tooltip_position: null,
|
|
labelledby: null
|
|
},
|
|
|
|
getElement: function() {
|
|
return this.sliderElem;
|
|
},
|
|
|
|
getValue: function() {
|
|
if (this.options.range) {
|
|
return this._state.value;
|
|
}
|
|
else {
|
|
return this._state.value[0];
|
|
}
|
|
},
|
|
|
|
setValue: function(val, triggerSlideEvent, triggerChangeEvent) {
|
|
if (!val) {
|
|
val = 0;
|
|
}
|
|
var oldValue = this.getValue();
|
|
this._state.value = this._validateInputValue(val);
|
|
var applyPrecision = this._applyPrecision.bind(this);
|
|
|
|
if (this.options.range) {
|
|
this._state.value[0] = applyPrecision(this._state.value[0]);
|
|
this._state.value[1] = applyPrecision(this._state.value[1]);
|
|
|
|
this._state.value[0] = Math.max(this.options.min, Math.min(this.options.max, this._state.value[0]));
|
|
this._state.value[1] = Math.max(this.options.min, Math.min(this.options.max, this._state.value[1]));
|
|
}
|
|
else {
|
|
this._state.value = applyPrecision(this._state.value);
|
|
this._state.value = [ Math.max(this.options.min, Math.min(this.options.max, this._state.value))];
|
|
this._addClass(this.handle2, 'hide');
|
|
if (this.options.selection === 'after') {
|
|
this._state.value[1] = this.options.max;
|
|
} else {
|
|
this._state.value[1] = this.options.min;
|
|
}
|
|
}
|
|
|
|
if (this.options.max > this.options.min) {
|
|
this._state.percentage = [
|
|
this._toPercentage(this._state.value[0]),
|
|
this._toPercentage(this._state.value[1]),
|
|
this.options.step * 100 / (this.options.max - this.options.min)
|
|
];
|
|
} else {
|
|
this._state.percentage = [0, 0, 100];
|
|
}
|
|
|
|
this._layout();
|
|
var newValue = this.options.range ? this._state.value : this._state.value[0];
|
|
|
|
if(triggerSlideEvent === true) {
|
|
this._trigger('slide', newValue);
|
|
}
|
|
if( (oldValue !== newValue) && (triggerChangeEvent === true) ) {
|
|
this._trigger('change', {
|
|
oldValue: oldValue,
|
|
newValue: newValue
|
|
});
|
|
}
|
|
this._setDataVal(newValue);
|
|
|
|
return this;
|
|
},
|
|
|
|
destroy: function(){
|
|
// Remove event handlers on slider elements
|
|
this._removeSliderEventHandlers();
|
|
|
|
// Remove the slider from the DOM
|
|
this.sliderElem.parentNode.removeChild(this.sliderElem);
|
|
/* Show original <input> element */
|
|
this.element.style.display = "";
|
|
|
|
// Clear out custom event bindings
|
|
this._cleanUpEventCallbacksMap();
|
|
|
|
// Remove data values
|
|
this.element.removeAttribute("data");
|
|
|
|
// Remove JQuery handlers/data
|
|
if($) {
|
|
this._unbindJQueryEventHandlers();
|
|
this.$element.removeData('slider');
|
|
}
|
|
},
|
|
|
|
disable: function() {
|
|
this._state.enabled = false;
|
|
this.handle1.removeAttribute("tabindex");
|
|
this.handle2.removeAttribute("tabindex");
|
|
this._addClass(this.sliderElem, 'slider-disabled');
|
|
this._trigger('slideDisabled');
|
|
|
|
return this;
|
|
},
|
|
|
|
enable: function() {
|
|
this._state.enabled = true;
|
|
this.handle1.setAttribute("tabindex", 0);
|
|
this.handle2.setAttribute("tabindex", 0);
|
|
this._removeClass(this.sliderElem, 'slider-disabled');
|
|
this._trigger('slideEnabled');
|
|
|
|
return this;
|
|
},
|
|
|
|
toggle: function() {
|
|
if(this._state.enabled) {
|
|
this.disable();
|
|
} else {
|
|
this.enable();
|
|
}
|
|
return this;
|
|
},
|
|
|
|
isEnabled: function() {
|
|
return this._state.enabled;
|
|
},
|
|
|
|
on: function(evt, callback) {
|
|
this._bindNonQueryEventHandler(evt, callback);
|
|
return this;
|
|
},
|
|
|
|
off: function(evt, callback) {
|
|
if($) {
|
|
this.$element.off(evt, callback);
|
|
this.$sliderElem.off(evt, callback);
|
|
} else {
|
|
this._unbindNonQueryEventHandler(evt, callback);
|
|
}
|
|
},
|
|
|
|
getAttribute: function(attribute) {
|
|
if(attribute) {
|
|
return this.options[attribute];
|
|
} else {
|
|
return this.options;
|
|
}
|
|
},
|
|
|
|
setAttribute: function(attribute, value) {
|
|
this.options[attribute] = value;
|
|
return this;
|
|
},
|
|
|
|
refresh: function() {
|
|
this._removeSliderEventHandlers();
|
|
createNewSlider.call(this, this.element, this.options);
|
|
if($) {
|
|
// Bind new instance of slider to the element
|
|
$.data(this.element, 'slider', this);
|
|
}
|
|
return this;
|
|
},
|
|
|
|
relayout: function() {
|
|
this._layout();
|
|
return this;
|
|
},
|
|
|
|
/******************************+
|
|
|
|
HELPERS
|
|
|
|
- Any method that is not part of the public interface.
|
|
- Place it underneath this comment block and write its signature like so:
|
|
|
|
_fnName : function() {...}
|
|
|
|
********************************/
|
|
_removeSliderEventHandlers: function() {
|
|
// Remove keydown event listeners
|
|
this.handle1.removeEventListener("keydown", this.handle1Keydown, false);
|
|
this.handle2.removeEventListener("keydown", this.handle2Keydown, false);
|
|
|
|
if (this.showTooltip) {
|
|
this.handle1.removeEventListener("focus", this.showTooltip, false);
|
|
this.handle2.removeEventListener("focus", this.showTooltip, false);
|
|
}
|
|
if (this.hideTooltip) {
|
|
this.handle1.removeEventListener("blur", this.hideTooltip, false);
|
|
this.handle2.removeEventListener("blur", this.hideTooltip, false);
|
|
}
|
|
|
|
// Remove event listeners from sliderElem
|
|
if (this.showTooltip) {
|
|
this.sliderElem.removeEventListener("mouseenter", this.showTooltip, false);
|
|
}
|
|
if (this.hideTooltip) {
|
|
this.sliderElem.removeEventListener("mouseleave", this.hideTooltip, false);
|
|
}
|
|
this.sliderElem.removeEventListener("touchstart", this.mousedown, false);
|
|
this.sliderElem.removeEventListener("mousedown", this.mousedown, false);
|
|
},
|
|
_bindNonQueryEventHandler: function(evt, callback) {
|
|
if(this.eventToCallbackMap[evt] === undefined) {
|
|
this.eventToCallbackMap[evt] = [];
|
|
}
|
|
this.eventToCallbackMap[evt].push(callback);
|
|
},
|
|
_unbindNonQueryEventHandler: function(evt, callback) {
|
|
var callbacks = this.eventToCallbackMap[evt];
|
|
if(callbacks !== undefined) {
|
|
for (var i = 0; i < callbacks.length; i++) {
|
|
if (callbacks[i] === callback) {
|
|
callbacks.splice(i, 1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
},
|
|
_cleanUpEventCallbacksMap: function() {
|
|
var eventNames = Object.keys(this.eventToCallbackMap);
|
|
for(var i = 0; i < eventNames.length; i++) {
|
|
var eventName = eventNames[i];
|
|
this.eventToCallbackMap[eventName] = null;
|
|
}
|
|
},
|
|
_showTooltip: function() {
|
|
if (this.options.tooltip_split === false ){
|
|
this._addClass(this.tooltip, 'in');
|
|
this.tooltip_min.style.display = 'none';
|
|
this.tooltip_max.style.display = 'none';
|
|
} else {
|
|
this._addClass(this.tooltip_min, 'in');
|
|
this._addClass(this.tooltip_max, 'in');
|
|
this.tooltip.style.display = 'none';
|
|
}
|
|
this._state.over = true;
|
|
},
|
|
_hideTooltip: function() {
|
|
if (this._state.inDrag === false && this.alwaysShowTooltip !== true) {
|
|
this._removeClass(this.tooltip, 'in');
|
|
this._removeClass(this.tooltip_min, 'in');
|
|
this._removeClass(this.tooltip_max, 'in');
|
|
}
|
|
this._state.over = false;
|
|
},
|
|
_layout: function() {
|
|
var positionPercentages;
|
|
|
|
if(this.options.reversed) {
|
|
positionPercentages = [ 100 - this._state.percentage[0], this.options.range ? 100 - this._state.percentage[1] : this._state.percentage[1]];
|
|
}
|
|
else {
|
|
positionPercentages = [ this._state.percentage[0], this._state.percentage[1] ];
|
|
}
|
|
|
|
this.handle1.style[this.stylePos] = positionPercentages[0]+'%';
|
|
this.handle1.setAttribute('aria-valuenow', this._state.value[0]);
|
|
|
|
this.handle2.style[this.stylePos] = positionPercentages[1]+'%';
|
|
this.handle2.setAttribute('aria-valuenow', this._state.value[1]);
|
|
|
|
/* Position ticks and labels */
|
|
if (Array.isArray(this.options.ticks) && this.options.ticks.length > 0) {
|
|
|
|
var styleSize = this.options.orientation === 'vertical' ? 'height' : 'width';
|
|
var styleMargin = this.options.orientation === 'vertical' ? 'marginTop' : 'marginLeft';
|
|
var labelSize = this._state.size / (this.options.ticks.length - 1);
|
|
|
|
if (this.tickLabelContainer) {
|
|
var extraMargin = 0;
|
|
if (this.options.ticks_positions.length === 0) {
|
|
if (this.options.orientation !== 'vertical') {
|
|
this.tickLabelContainer.style[styleMargin] = -labelSize/2 + 'px';
|
|
}
|
|
|
|
extraMargin = this.tickLabelContainer.offsetHeight;
|
|
} else {
|
|
/* Chidren are position absolute, calculate height by finding the max offsetHeight of a child */
|
|
for (i = 0 ; i < this.tickLabelContainer.childNodes.length; i++) {
|
|
if (this.tickLabelContainer.childNodes[i].offsetHeight > extraMargin) {
|
|
extraMargin = this.tickLabelContainer.childNodes[i].offsetHeight;
|
|
}
|
|
}
|
|
}
|
|
if (this.options.orientation === 'horizontal') {
|
|
this.sliderElem.style.marginBottom = extraMargin + 'px';
|
|
}
|
|
}
|
|
for (var i = 0; i < this.options.ticks.length; i++) {
|
|
|
|
var percentage = this.options.ticks_positions[i] || this._toPercentage(this.options.ticks[i]);
|
|
|
|
if (this.options.reversed) {
|
|
percentage = 100 - percentage;
|
|
}
|
|
|
|
this.ticks[i].style[this.stylePos] = percentage + '%';
|
|
|
|
/* Set class labels to denote whether ticks are in the selection */
|
|
this._removeClass(this.ticks[i], 'in-selection');
|
|
if (!this.options.range) {
|
|
if (this.options.selection === 'after' && percentage >= positionPercentages[0]){
|
|
this._addClass(this.ticks[i], 'in-selection');
|
|
} else if (this.options.selection === 'before' && percentage <= positionPercentages[0]) {
|
|
this._addClass(this.ticks[i], 'in-selection');
|
|
}
|
|
} else if (percentage >= positionPercentages[0] && percentage <= positionPercentages[1]) {
|
|
this._addClass(this.ticks[i], 'in-selection');
|
|
}
|
|
|
|
if (this.tickLabels[i]) {
|
|
this.tickLabels[i].style[styleSize] = labelSize + 'px';
|
|
|
|
if (this.options.orientation !== 'vertical' && this.options.ticks_positions[i] !== undefined) {
|
|
this.tickLabels[i].style.position = 'absolute';
|
|
this.tickLabels[i].style[this.stylePos] = percentage + '%';
|
|
this.tickLabels[i].style[styleMargin] = -labelSize/2 + 'px';
|
|
} else if (this.options.orientation === 'vertical') {
|
|
this.tickLabels[i].style['marginLeft'] = this.sliderElem.offsetWidth + 'px';
|
|
this.tickLabelContainer.style['marginTop'] = this.sliderElem.offsetWidth / 2 * -1 + 'px';
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
var formattedTooltipVal;
|
|
|
|
if (this.options.range) {
|
|
formattedTooltipVal = this.options.formatter(this._state.value);
|
|
this._setText(this.tooltipInner, formattedTooltipVal);
|
|
this.tooltip.style[this.stylePos] = (positionPercentages[1] + positionPercentages[0])/2 + '%';
|
|
|
|
if (this.options.orientation === 'vertical') {
|
|
this._css(this.tooltip, 'margin-top', -this.tooltip.offsetHeight / 2 + 'px');
|
|
} else {
|
|
this._css(this.tooltip, 'margin-left', -this.tooltip.offsetWidth / 2 + 'px');
|
|
}
|
|
|
|
if (this.options.orientation === 'vertical') {
|
|
this._css(this.tooltip, 'margin-top', -this.tooltip.offsetHeight / 2 + 'px');
|
|
} else {
|
|
this._css(this.tooltip, 'margin-left', -this.tooltip.offsetWidth / 2 + 'px');
|
|
}
|
|
|
|
var innerTooltipMinText = this.options.formatter(this._state.value[0]);
|
|
this._setText(this.tooltipInner_min, innerTooltipMinText);
|
|
|
|
var innerTooltipMaxText = this.options.formatter(this._state.value[1]);
|
|
this._setText(this.tooltipInner_max, innerTooltipMaxText);
|
|
|
|
this.tooltip_min.style[this.stylePos] = positionPercentages[0] + '%';
|
|
|
|
if (this.options.orientation === 'vertical') {
|
|
this._css(this.tooltip_min, 'margin-top', -this.tooltip_min.offsetHeight / 2 + 'px');
|
|
} else {
|
|
this._css(this.tooltip_min, 'margin-left', -this.tooltip_min.offsetWidth / 2 + 'px');
|
|
}
|
|
|
|
this.tooltip_max.style[this.stylePos] = positionPercentages[1] + '%';
|
|
|
|
if (this.options.orientation === 'vertical') {
|
|
this._css(this.tooltip_max, 'margin-top', -this.tooltip_max.offsetHeight / 2 + 'px');
|
|
} else {
|
|
this._css(this.tooltip_max, 'margin-left', -this.tooltip_max.offsetWidth / 2 + 'px');
|
|
}
|
|
} else {
|
|
formattedTooltipVal = this.options.formatter(this._state.value[0]);
|
|
this._setText(this.tooltipInner, formattedTooltipVal);
|
|
|
|
this.tooltip.style[this.stylePos] = positionPercentages[0] + '%';
|
|
if (this.options.orientation === 'vertical') {
|
|
this._css(this.tooltip, 'margin-top', -this.tooltip.offsetHeight / 2 + 'px');
|
|
} else {
|
|
this._css(this.tooltip, 'margin-left', -this.tooltip.offsetWidth / 2 + 'px');
|
|
}
|
|
}
|
|
|
|
if (this.options.orientation === 'vertical') {
|
|
this.trackLow.style.top = '0';
|
|
this.trackLow.style.height = Math.min(positionPercentages[0], positionPercentages[1]) +'%';
|
|
|
|
this.trackSelection.style.top = Math.min(positionPercentages[0], positionPercentages[1]) +'%';
|
|
this.trackSelection.style.height = Math.abs(positionPercentages[0] - positionPercentages[1]) +'%';
|
|
|
|
this.trackHigh.style.bottom = '0';
|
|
this.trackHigh.style.height = (100 - Math.min(positionPercentages[0], positionPercentages[1]) - Math.abs(positionPercentages[0] - positionPercentages[1])) +'%';
|
|
}
|
|
else {
|
|
this.trackLow.style.left = '0';
|
|
this.trackLow.style.width = Math.min(positionPercentages[0], positionPercentages[1]) +'%';
|
|
|
|
this.trackSelection.style.left = Math.min(positionPercentages[0], positionPercentages[1]) +'%';
|
|
this.trackSelection.style.width = Math.abs(positionPercentages[0] - positionPercentages[1]) +'%';
|
|
|
|
this.trackHigh.style.right = '0';
|
|
this.trackHigh.style.width = (100 - Math.min(positionPercentages[0], positionPercentages[1]) - Math.abs(positionPercentages[0] - positionPercentages[1])) +'%';
|
|
|
|
var offset_min = this.tooltip_min.getBoundingClientRect();
|
|
var offset_max = this.tooltip_max.getBoundingClientRect();
|
|
|
|
if (offset_min.right > offset_max.left) {
|
|
this._removeClass(this.tooltip_max, 'top');
|
|
this._addClass(this.tooltip_max, 'bottom');
|
|
this.tooltip_max.style.top = 18 + 'px';
|
|
} else {
|
|
this._removeClass(this.tooltip_max, 'bottom');
|
|
this._addClass(this.tooltip_max, 'top');
|
|
this.tooltip_max.style.top = this.tooltip_min.style.top;
|
|
}
|
|
}
|
|
},
|
|
_removeProperty: function(element, prop) {
|
|
if (element.style.removeProperty) {
|
|
element.style.removeProperty(prop);
|
|
} else {
|
|
element.style.removeAttribute(prop);
|
|
}
|
|
},
|
|
_mousedown: function(ev) {
|
|
if(!this._state.enabled) {
|
|
return false;
|
|
}
|
|
|
|
this._state.offset = this._offset(this.sliderElem);
|
|
this._state.size = this.sliderElem[this.sizePos];
|
|
|
|
var percentage = this._getPercentage(ev);
|
|
|
|
if (this.options.range) {
|
|
var diff1 = Math.abs(this._state.percentage[0] - percentage);
|
|
var diff2 = Math.abs(this._state.percentage[1] - percentage);
|
|
this._state.dragged = (diff1 < diff2) ? 0 : 1;
|
|
} else {
|
|
this._state.dragged = 0;
|
|
}
|
|
|
|
this._state.percentage[this._state.dragged] = percentage;
|
|
this._layout();
|
|
|
|
if (this.touchCapable) {
|
|
document.removeEventListener("touchmove", this.mousemove, false);
|
|
document.removeEventListener("touchend", this.mouseup, false);
|
|
}
|
|
|
|
if(this.mousemove){
|
|
document.removeEventListener("mousemove", this.mousemove, false);
|
|
}
|
|
if(this.mouseup){
|
|
document.removeEventListener("mouseup", this.mouseup, false);
|
|
}
|
|
|
|
this.mousemove = this._mousemove.bind(this);
|
|
this.mouseup = this._mouseup.bind(this);
|
|
|
|
if (this.touchCapable) {
|
|
// Touch: Bind touch events:
|
|
document.addEventListener("touchmove", this.mousemove, false);
|
|
document.addEventListener("touchend", this.mouseup, false);
|
|
}
|
|
// Bind mouse events:
|
|
document.addEventListener("mousemove", this.mousemove, false);
|
|
document.addEventListener("mouseup", this.mouseup, false);
|
|
|
|
this._state.inDrag = true;
|
|
var newValue = this._calculateValue();
|
|
|
|
this._trigger('slideStart', newValue);
|
|
|
|
this._setDataVal(newValue);
|
|
this.setValue(newValue, false, true);
|
|
|
|
this._pauseEvent(ev);
|
|
|
|
if (this.options.focus) {
|
|
this._triggerFocusOnHandle(this._state.dragged);
|
|
}
|
|
|
|
return true;
|
|
},
|
|
_triggerFocusOnHandle: function(handleIdx) {
|
|
if(handleIdx === 0) {
|
|
this.handle1.focus();
|
|
}
|
|
if(handleIdx === 1) {
|
|
this.handle2.focus();
|
|
}
|
|
},
|
|
_keydown: function(handleIdx, ev) {
|
|
if(!this._state.enabled) {
|
|
return false;
|
|
}
|
|
|
|
var dir;
|
|
switch (ev.keyCode) {
|
|
case 37: // left
|
|
case 40: // down
|
|
dir = -1;
|
|
break;
|
|
case 39: // right
|
|
case 38: // up
|
|
dir = 1;
|
|
break;
|
|
}
|
|
if (!dir) {
|
|
return;
|
|
}
|
|
|
|
// use natural arrow keys instead of from min to max
|
|
if (this.options.natural_arrow_keys) {
|
|
var ifVerticalAndNotReversed = (this.options.orientation === 'vertical' && !this.options.reversed);
|
|
var ifHorizontalAndReversed = (this.options.orientation === 'horizontal' && this.options.reversed);
|
|
|
|
if (ifVerticalAndNotReversed || ifHorizontalAndReversed) {
|
|
dir = -dir;
|
|
}
|
|
}
|
|
|
|
var val = this._state.value[handleIdx] + dir * this.options.step;
|
|
if (this.options.range) {
|
|
val = [ (!handleIdx) ? val : this._state.value[0],
|
|
( handleIdx) ? val : this._state.value[1]];
|
|
}
|
|
|
|
this._trigger('slideStart', val);
|
|
this._setDataVal(val);
|
|
this.setValue(val, true, true);
|
|
|
|
this._setDataVal(val);
|
|
this._trigger('slideStop', val);
|
|
this._layout();
|
|
|
|
this._pauseEvent(ev);
|
|
|
|
return false;
|
|
},
|
|
_pauseEvent: function(ev) {
|
|
if(ev.stopPropagation) {
|
|
ev.stopPropagation();
|
|
}
|
|
if(ev.preventDefault) {
|
|
ev.preventDefault();
|
|
}
|
|
ev.cancelBubble=true;
|
|
ev.returnValue=false;
|
|
},
|
|
_mousemove: function(ev) {
|
|
if(!this._state.enabled) {
|
|
return false;
|
|
}
|
|
|
|
var percentage = this._getPercentage(ev);
|
|
this._adjustPercentageForRangeSliders(percentage);
|
|
this._state.percentage[this._state.dragged] = percentage;
|
|
this._layout();
|
|
|
|
var val = this._calculateValue(true);
|
|
this.setValue(val, true, true);
|
|
|
|
return false;
|
|
},
|
|
_adjustPercentageForRangeSliders: function(percentage) {
|
|
if (this.options.range) {
|
|
var precision = this._getNumDigitsAfterDecimalPlace(percentage);
|
|
precision = precision ? precision - 1 : 0;
|
|
var percentageWithAdjustedPrecision = this._applyToFixedAndParseFloat(percentage, precision);
|
|
if (this._state.dragged === 0 && this._applyToFixedAndParseFloat(this._state.percentage[1], precision) < percentageWithAdjustedPrecision) {
|
|
this._state.percentage[0] = this._state.percentage[1];
|
|
this._state.dragged = 1;
|
|
} else if (this._state.dragged === 1 && this._applyToFixedAndParseFloat(this._state.percentage[0], precision) > percentageWithAdjustedPrecision) {
|
|
this._state.percentage[1] = this._state.percentage[0];
|
|
this._state.dragged = 0;
|
|
}
|
|
}
|
|
},
|
|
_mouseup: function() {
|
|
if(!this._state.enabled) {
|
|
return false;
|
|
}
|
|
if (this.touchCapable) {
|
|
// Touch: Unbind touch event handlers:
|
|
document.removeEventListener("touchmove", this.mousemove, false);
|
|
document.removeEventListener("touchend", this.mouseup, false);
|
|
}
|
|
// Unbind mouse event handlers:
|
|
document.removeEventListener("mousemove", this.mousemove, false);
|
|
document.removeEventListener("mouseup", this.mouseup, false);
|
|
|
|
this._state.inDrag = false;
|
|
if (this._state.over === false) {
|
|
this._hideTooltip();
|
|
}
|
|
var val = this._calculateValue(true);
|
|
|
|
this._layout();
|
|
this._setDataVal(val);
|
|
this._trigger('slideStop', val);
|
|
|
|
return false;
|
|
},
|
|
_calculateValue: function(snapToClosestTick) {
|
|
var val;
|
|
if (this.options.range) {
|
|
val = [this.options.min,this.options.max];
|
|
if (this._state.percentage[0] !== 0){
|
|
val[0] = this._toValue(this._state.percentage[0]);
|
|
val[0] = this._applyPrecision(val[0]);
|
|
}
|
|
if (this._state.percentage[1] !== 100){
|
|
val[1] = this._toValue(this._state.percentage[1]);
|
|
val[1] = this._applyPrecision(val[1]);
|
|
}
|
|
} else {
|
|
val = this._toValue(this._state.percentage[0]);
|
|
val = parseFloat(val);
|
|
val = this._applyPrecision(val);
|
|
}
|
|
|
|
if (snapToClosestTick) {
|
|
var min = [val, Infinity];
|
|
for (var i = 0; i < this.options.ticks.length; i++) {
|
|
var diff = Math.abs(this.options.ticks[i] - val);
|
|
if (diff <= min[1]) {
|
|
min = [this.options.ticks[i], diff];
|
|
}
|
|
}
|
|
if (min[1] <= this.options.ticks_snap_bounds) {
|
|
return min[0];
|
|
}
|
|
}
|
|
|
|
return val;
|
|
},
|
|
_applyPrecision: function(val) {
|
|
var precision = this.options.precision || this._getNumDigitsAfterDecimalPlace(this.options.step);
|
|
return this._applyToFixedAndParseFloat(val, precision);
|
|
},
|
|
_getNumDigitsAfterDecimalPlace: function(num) {
|
|
var match = (''+num).match(/(?:\.(\d+))?(?:[eE]([+-]?\d+))?$/);
|
|
if (!match) { return 0; }
|
|
return Math.max(0, (match[1] ? match[1].length : 0) - (match[2] ? +match[2] : 0));
|
|
},
|
|
_applyToFixedAndParseFloat: function(num, toFixedInput) {
|
|
var truncatedNum = num.toFixed(toFixedInput);
|
|
return parseFloat(truncatedNum);
|
|
},
|
|
/*
|
|
Credits to Mike Samuel for the following method!
|
|
Source: http://stackoverflow.com/questions/10454518/javascript-how-to-retrieve-the-number-of-decimals-of-a-string-number
|
|
*/
|
|
_getPercentage: function(ev) {
|
|
if (this.touchCapable && (ev.type === 'touchstart' || ev.type === 'touchmove')) {
|
|
ev = ev.touches[0];
|
|
}
|
|
|
|
var eventPosition = ev[this.mousePos];
|
|
var sliderOffset = this._state.offset[this.stylePos];
|
|
var distanceToSlide = eventPosition - sliderOffset;
|
|
// Calculate what percent of the length the slider handle has slid
|
|
var percentage = (distanceToSlide / this._state.size) * 100;
|
|
percentage = Math.round(percentage / this._state.percentage[2]) * this._state.percentage[2];
|
|
if (this.options.reversed) {
|
|
percentage = 100 - percentage;
|
|
}
|
|
|
|
// Make sure the percent is within the bounds of the slider.
|
|
// 0% corresponds to the 'min' value of the slide
|
|
// 100% corresponds to the 'max' value of the slide
|
|
return Math.max(0, Math.min(100, percentage));
|
|
},
|
|
_validateInputValue: function(val) {
|
|
if (typeof val === 'number') {
|
|
return val;
|
|
} else if (Array.isArray(val)) {
|
|
this._validateArray(val);
|
|
return val;
|
|
} else {
|
|
throw new Error( ErrorMsgs.formatInvalidInputErrorMsg(val) );
|
|
}
|
|
},
|
|
_validateArray: function(val) {
|
|
for(var i = 0; i < val.length; i++) {
|
|
var input = val[i];
|
|
if (typeof input !== 'number') { throw new Error( ErrorMsgs.formatInvalidInputErrorMsg(input) ); }
|
|
}
|
|
},
|
|
_setDataVal: function(val) {
|
|
this.element.setAttribute('data-value', val);
|
|
this.element.setAttribute('value', val);
|
|
this.element.value = val;
|
|
},
|
|
_trigger: function(evt, val) {
|
|
val = (val || val === 0) ? val : undefined;
|
|
|
|
var callbackFnArray = this.eventToCallbackMap[evt];
|
|
if(callbackFnArray && callbackFnArray.length) {
|
|
for(var i = 0; i < callbackFnArray.length; i++) {
|
|
var callbackFn = callbackFnArray[i];
|
|
callbackFn(val);
|
|
}
|
|
}
|
|
|
|
/* If JQuery exists, trigger JQuery events */
|
|
if($) {
|
|
this._triggerJQueryEvent(evt, val);
|
|
}
|
|
},
|
|
_triggerJQueryEvent: function(evt, val) {
|
|
var eventData = {
|
|
type: evt,
|
|
value: val
|
|
};
|
|
this.$element.trigger(eventData);
|
|
this.$sliderElem.trigger(eventData);
|
|
},
|
|
_unbindJQueryEventHandlers: function() {
|
|
this.$element.off();
|
|
this.$sliderElem.off();
|
|
},
|
|
_setText: function(element, text) {
|
|
if(typeof element.innerText !== "undefined") {
|
|
element.innerText = text;
|
|
} else if(typeof element.textContent !== "undefined") {
|
|
element.textContent = text;
|
|
}
|
|
},
|
|
_removeClass: function(element, classString) {
|
|
var classes = classString.split(" ");
|
|
var newClasses = element.className;
|
|
|
|
for(var i = 0; i < classes.length; i++) {
|
|
var classTag = classes[i];
|
|
var regex = new RegExp("(?:\\s|^)" + classTag + "(?:\\s|$)");
|
|
newClasses = newClasses.replace(regex, " ");
|
|
}
|
|
|
|
element.className = newClasses.trim();
|
|
},
|
|
_addClass: function(element, classString) {
|
|
var classes = classString.split(" ");
|
|
var newClasses = element.className;
|
|
|
|
for(var i = 0; i < classes.length; i++) {
|
|
var classTag = classes[i];
|
|
var regex = new RegExp("(?:\\s|^)" + classTag + "(?:\\s|$)");
|
|
var ifClassExists = regex.test(newClasses);
|
|
|
|
if(!ifClassExists) {
|
|
newClasses += " " + classTag;
|
|
}
|
|
}
|
|
|
|
element.className = newClasses.trim();
|
|
},
|
|
_offsetLeft: function(obj){
|
|
return obj.getBoundingClientRect().left;
|
|
},
|
|
_offsetTop: function(obj){
|
|
var offsetTop = obj.offsetTop;
|
|
while((obj = obj.offsetParent) && !isNaN(obj.offsetTop)){
|
|
offsetTop += obj.offsetTop;
|
|
}
|
|
return offsetTop;
|
|
},
|
|
_offset: function (obj) {
|
|
return {
|
|
left: this._offsetLeft(obj),
|
|
top: this._offsetTop(obj)
|
|
};
|
|
},
|
|
_css: function(elementRef, styleName, value) {
|
|
if ($) {
|
|
$.style(elementRef, styleName, value);
|
|
} else {
|
|
var style = styleName.replace(/^-ms-/, "ms-").replace(/-([\da-z])/gi, function (all, letter) {
|
|
return letter.toUpperCase();
|
|
});
|
|
elementRef.style[style] = value;
|
|
}
|
|
},
|
|
_toValue: function(percentage) {
|
|
return this.options.scale.toValue.apply(this, [percentage]);
|
|
},
|
|
_toPercentage: function(value) {
|
|
return this.options.scale.toPercentage.apply(this, [value]);
|
|
},
|
|
_setTooltipPosition: function(){
|
|
var tooltips = [this.tooltip, this.tooltip_min, this.tooltip_max];
|
|
if (this.options.orientation === 'vertical'){
|
|
var tooltipPos = this.options.tooltip_position || 'right';
|
|
var oppositeSide = (tooltipPos === 'left') ? 'right' : 'left';
|
|
tooltips.forEach(function(tooltip){
|
|
this._addClass(tooltip, tooltipPos);
|
|
tooltip.style[oppositeSide] = '100%';
|
|
}.bind(this));
|
|
} else if(this.options.tooltip_position === 'bottom') {
|
|
tooltips.forEach(function(tooltip){
|
|
this._addClass(tooltip, 'bottom');
|
|
tooltip.style.top = 22 + 'px';
|
|
}.bind(this));
|
|
} else {
|
|
tooltips.forEach(function(tooltip){
|
|
this._addClass(tooltip, 'top');
|
|
tooltip.style.top = -this.tooltip.outerHeight - 14 + 'px';
|
|
}.bind(this));
|
|
}
|
|
}
|
|
};
|
|
|
|
/*********************************
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Attach to global namespace
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*********************************/
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if($) {
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var namespace = $.fn.slider ? 'bootstrapSlider' : 'slider';
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$.bridget(namespace, Slider);
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}
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})( $ );
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return Slider;
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}));
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