File: /var/www/html/tmpr/../tmpr/..//tmpr/../tmpr/../js/rangeslider.js
/*! rangeslider.js - v0.3.3 | (c) 2014 @andreruffert | MIT license | https://github.com/andreruffert/rangeslider.js */
(function(factory) {
'use strict';
if (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module.
define(['jquery'], factory);
}
else if (typeof exports === 'object') {
// CommonJS
factory(require('jquery'));
} else {
// Browser globals
factory(jQuery);
}
}(function($) {
'use strict';
/**
* Range feature detection
* @return {Boolean}
*/
function supportsRange() {
var input = document.createElement('input');
input.setAttribute('type', 'range');
return input.type !== 'text';
}
var pluginName = 'rangeslider',
pluginInstances = [],
inputrange = supportsRange(),
defaults = {
polyfill: true,
rangeClass: 'rangeslider',
disabledClass: 'rangeslider--disabled',
fillClass: 'rangeslider__fill',
handleClass: 'rangeslider__handle',
startEvent: ['mousedown', 'touchstart', 'pointerdown'],
moveEvent: ['mousemove', 'touchmove', 'pointermove'],
endEvent: ['mouseup', 'touchend', 'pointerup']
};
/**
* Delays a function for the given number of milliseconds, and then calls
* it with the arguments supplied.
*
* @param {Function} fn [description]
* @param {Number} wait [description]
* @return {Function}
*/
function delay(fn, wait) {
var args = Array.prototype.slice.call(arguments, 2);
return setTimeout(function(){ return fn.apply(null, args); }, wait);
}
/**
* Returns a debounced function that will make sure the given
* function is not triggered too much.
*
* @param {Function} fn Function to debounce.
* @param {Number} debounceDuration OPTIONAL. The amount of time in milliseconds for which we will debounce the function. (defaults to 100ms)
* @return {Function}
*/
function debounce(fn, debounceDuration) {
debounceDuration = debounceDuration || 100;
return function() {
if (!fn.debouncing) {
var args = Array.prototype.slice.apply(arguments);
fn.lastReturnVal = fn.apply(window, args);
fn.debouncing = true;
}
clearTimeout(fn.debounceTimeout);
fn.debounceTimeout = setTimeout(function(){
fn.debouncing = false;
}, debounceDuration);
return fn.lastReturnVal;
};
}
/**
* Plugin
* @param {String} element
* @param {Object} options
*/
function Plugin(element, options) {
this.$window = $(window);
this.$document = $(document);
this.$element = $(element);
this.options = $.extend( {}, defaults, options );
this._defaults = defaults;
this._name = pluginName;
this.startEvent = this.options.startEvent.join('.' + pluginName + ' ') + '.' + pluginName;
this.moveEvent = this.options.moveEvent.join('.' + pluginName + ' ') + '.' + pluginName;
this.endEvent = this.options.endEvent.join('.' + pluginName + ' ') + '.' + pluginName;
this.polyfill = this.options.polyfill;
this.onInit = this.options.onInit;
this.onSlide = this.options.onSlide;
this.onSlideEnd = this.options.onSlideEnd;
// Plugin should only be used as a polyfill
if (this.polyfill) {
// Input range support?
if (inputrange) { return false; }
}
this.identifier = 'js-' + pluginName + '-' +(+new Date());
this.min = parseFloat(this.$element[0].getAttribute('min') || 0);
this.max = parseFloat(this.$element[0].getAttribute('max') || 100);
this.value = parseFloat(this.$element[0].value || this.min + (this.max-this.min)/2);
this.step = parseFloat(this.$element[0].getAttribute('step') || 1);
this.$fill = $('<div class="' + this.options.fillClass + '" />');
this.$handle = $('<div class="' + this.options.handleClass + '" />');
this.$range = $('<div class="' + this.options.rangeClass + '" id="' + this.identifier + '" />').insertAfter(this.$element).prepend(this.$fill, this.$handle);
// visually hide the input
this.$element.css({
'position': 'absolute',
'width': '1px',
'height': '1px',
'overflow': 'hidden',
'opacity': '0'
});
// Store context
this.handleDown = $.proxy(this.handleDown, this);
this.handleMove = $.proxy(this.handleMove, this);
this.handleEnd = $.proxy(this.handleEnd, this);
this.init();
// Attach Events
var _this = this;
this.$window.on('resize' + '.' + pluginName, debounce(function() {
// Simulate resizeEnd event.
delay(function() { _this.update(); }, 300);
}, 20));
this.$document.on(this.startEvent, '#' + this.identifier + ':not(.' + this.options.disabledClass + ')', this.handleDown);
// Listen to programmatic value changes
this.$element.on('change' + '.' + pluginName, function(e, data) {
if (data && data.origin === pluginName) {
return;
}
var value = e.target.value,
pos = _this.getPositionFromValue(value);
_this.setPosition(pos);
});
}
Plugin.prototype.init = function() {
if (this.onInit && typeof this.onInit === 'function') {
this.onInit();
}
this.update();
};
Plugin.prototype.update = function() {
this.handleWidth = this.$handle[0].offsetWidth;
this.rangeWidth = this.$range[0].offsetWidth;
this.maxHandleX = this.rangeWidth - this.handleWidth;
this.grabX = this.handleWidth / 2;
this.position = this.getPositionFromValue(this.value);
// Consider disabled state
if (this.$element[0].disabled) {
this.$range.addClass(this.options.disabledClass);
} else {
this.$range.removeClass(this.options.disabledClass);
}
this.setPosition(this.position);
};
Plugin.prototype.handleDown = function(e) {
e.preventDefault();
this.$document.on(this.moveEvent, this.handleMove);
this.$document.on(this.endEvent, this.handleEnd);
// If we click on the handle don't set the new position
if ((' ' + e.target.className + ' ').replace(/[\n\t]/g, ' ').indexOf(this.options.handleClass) > -1) {
return;
}
var posX = this.getRelativePosition(e),
rangeX = this.$range[0].getBoundingClientRect().left,
handleX = this.getPositionFromNode(this.$handle[0]) - rangeX;
this.setPosition(posX - this.grabX);
if (posX >= handleX && posX < handleX + this.handleWidth) {
this.grabX = posX - handleX;
}
};
Plugin.prototype.handleMove = function(e) {
e.preventDefault();
var posX = this.getRelativePosition(e);
this.setPosition(posX - this.grabX);
};
Plugin.prototype.handleEnd = function(e) {
e.preventDefault();
this.$document.off(this.moveEvent, this.handleMove);
this.$document.off(this.endEvent, this.handleEnd);
if (this.onSlideEnd && typeof this.onSlideEnd === 'function') {
this.onSlideEnd(this.position, this.value);
}
};
Plugin.prototype.cap = function(pos, min, max) {
if (pos < min) { return min; }
if (pos > max) { return max; }
return pos;
};
Plugin.prototype.setPosition = function(pos) {
var value, left;
// Snapping steps
value = (this.getValueFromPosition(this.cap(pos, 0, this.maxHandleX)) / this.step) * this.step;
left = this.getPositionFromValue(value);
// Update ui
this.$fill[0].style.width = (left + this.grabX) + 'px';
this.$handle[0].style.left = left + 'px';
this.setValue(value);
// Update globals
this.position = left;
this.value = value;
if (this.onSlide && typeof this.onSlide === 'function') {
this.onSlide(left, value);
}
};
// Returns element position relative to the parent
Plugin.prototype.getPositionFromNode = function(node) {
var i = 0;
while (node !== null) {
i += node.offsetLeft;
node = node.offsetParent;
}
return i;
};
Plugin.prototype.getRelativePosition = function(e) {
// Get the offset left relative to the viewport
var rangeX = this.$range[0].getBoundingClientRect().left;
return (e.pageX || e.originalEvent.clientX || e.originalEvent.touches[0].clientX || e.currentPoint.x) - rangeX;
};
Plugin.prototype.getPositionFromValue = function(value) {
var percentage, pos;
percentage = (value - this.min)/(this.max - this.min);
pos = percentage * this.maxHandleX;
return pos;
};
Plugin.prototype.getValueFromPosition = function(pos) {
var percentage, value;
percentage = ((pos) / (this.maxHandleX || 1));
value = this.step * Math.ceil((((percentage) * (this.max - this.min)) + this.min) / this.step);
return Number((value).toFixed(2));
};
Plugin.prototype.setValue = function(value) {
if (value !== this.value) {
this.$element.val(value).trigger('change', {origin: pluginName});
}
};
Plugin.prototype.destroy = function() {
this.$document.off(this.startEvent, '#' + this.identifier, this.handleDown);
this.$element
.off('.' + pluginName)
.removeAttr('style')
.removeData('plugin_' + pluginName);
// Remove the generated markup
if (this.$range && this.$range.length) {
this.$range[0].parentNode.removeChild(this.$range[0]);
}
// Remove global events if there isn't any instance anymore.
pluginInstances.splice(pluginInstances.indexOf(this.$element[0]),1);
if (!pluginInstances.length) {
this.$window.off('.' + pluginName);
}
};
// A really lightweight plugin wrapper around the constructor,
// preventing against multiple instantiations
$.fn[pluginName] = function(options) {
return this.each(function() {
var $this = $(this),
data = $this.data('plugin_' + pluginName);
// Create a new instance.
if (!data) {
$this.data('plugin_' + pluginName, (data = new Plugin(this, options)));
pluginInstances.push(this);
}
// Make it possible to access methods from public.
// e.g `$element.rangeslider('method');`
if (typeof options === 'string') {
data[options]();
}
});
};
}));