/
numeric-slider.js
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/
numeric-slider.js
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/**
* @license This file is part of LimeSurvey
* See COPYRIGHT.php for copyright notices and details.
*
*/
var LSSlider = function (options) {
"use strict";
var LSvar = window.LSvar || {};
var debugMode = LSvar.debugMode || 0;
console.ls.log(LSvar, debugMode);
//contextual settings and constants
var
qid = options.qid,
elementName = options.element,
rootElementName = options.rootElement,
reset = options.reset || '',
prefix = options.prefix || '',
suffix = options.suffix || '',
position = options.position || '',
separator = options.separator || '.',
setPosition = options.setPosition || '',
custom_handle = options.custom_handle || null,
settings = {
value: options.value || null,
min: (typeof options.min != 'undefined') ? options.min : 0,
max: (typeof options.max != 'undefined') ? options.max : 100,
step: options.step || 1,
orientation: options.orientation || 'horizontal',
handle: options.handle || '',
tooltip: options.tooltip || '',
prefix: options.prefix || '',
suffix: options.suffix || '',
number: options.number || true,
integer: options.integer || true,
reversed: options.reversed || ''
};
//fillable variables
var sliderObject = null,
sliderSettings = null;
//recurringObjects
var elementObject = $('#answer' + elementName),
rootElementObject = $('#answer' + rootElementName),
listItemObject = $('#javatbd' + elementName);
//settingFunctions
var stringFormatter = function (value) {
var displayValue = value.toString().replace('.', separator);
return prefix + displayValue + suffix;
},
writeToRootElement = function(value){
if(listItemObject.find('.slider-container').hasClass('slider-untouched') && rootElementObject.hasClass('slider-untouched')){
return;
}
rootElementObject.val(value);
},
/**
* The slide start event triggered when the handle of the slider is touched
*/
slideStartEvent = function () {
listItemObject.find('.slider-container').removeClass('slider-untouched').removeClass('slider-reset').addClass('slider-touched');
sliderObject.$sliderElem.removeClass('slider-untouched').removeClass('slider-reset').addClass('slider-touched');
listItemObject.find('div.tooltip').show(); // Show the tooltip
var currentValue = elementObject.val(); // We get the current value of the bootstrapSlider
var displayValue = currentValue.toString().replace('.', separator); // We format it with the right separator
elementObject.val(displayValue); // We parse it to the element
rootElementObject.removeClass('slider-untouched');
writeToRootElement(displayValue);
if (debugMode > 0) {
console.ls.log('sliderDebug started dragging', elementObject);
console.ls.log('sliderDebug current value', currentValue);
console.ls.log('sliderDebug current display value', displayValue);
}
triggerChanges();
},
/**
* The slide stop event is triggered when the handle of the slider is stopped dragging
*/
slideStopEvent = function (event) {
//Correct the value to fit the correct decimal separator and trigger em.
var displayValue = event.value.toString().replace('.', separator); // We format it with the right separator
elementObject.val( displayValue );
writeToRootElement(displayValue);
if (debugMode > 0) {
console.ls.log('sliderDebug stopped dragging', elementObject);
console.ls.log('sliderDebug new value', event.value);
console.ls.log('sliderDebug new value', displayValue);
}
triggerChanges();
},
setValue = function (value) {
value = value || parseFloat(position);
sliderObject.setValue(value, true, true);
elementObject.val(value.toString().replace('.', separator)).trigger('keyup');
writeToRootElement(value);
triggerChanges();
},
triggerChanges = function () {
try{
ExprMgr_process_relevance_and_tailoring('keyup', rootElementName, 'change');
} catch(e) {
console.ls.warn(e);
rootElementObject.trigger('change');
rootElementObject.trigger('keyup');
}
if (debugMode > 0) {
console.ls.log('sliderDebug triggered change', rootElementObject);
}
},
/**
* Create the settings including the events.
* This capsulates the methods nicely
*/
createSliderSettings = function () {
sliderSettings = settings;
sliderSettings.formatter = stringFormatter;
return sliderSettings;
},
bindResetAction = function () {
console.ls.log('wiring reset slider:', '#answer' + rootElementName + '_resetslider');
$('#answer' + rootElementName + '_resetslider').on('click', function (e) {
e.preventDefault();
/* Position slider button at position */
listItemObject.find('.slider-container').removeClass('slider-touched').addClass('slider-reset');
sliderObject.$sliderElem.removeClass('slider-touched').addClass('slider-reset');
setValue(null, true, true);
/* if don't set position : reset to '' */
if (!setPosition) {
sliderObject.$sliderElem.addClass('slider-untouched');
listItemObject.find('div.tooltip').hide();
rootElementObject.val('').trigger('keyup');
} else {
elementObject.trigger('keyup');
}
});
},
bindSlideActions = function(){
sliderObject.$element.on('slideStart', slideStartEvent);
sliderObject.$element.on('slideStop', slideStopEvent);
},
createSlider = function () {
if (custom_handle != null) {
var customStyleSheet = $('<style></style>');
customStyleSheet.attr('type','text/css');
customStyleSheet.text('#' + elementObject.attr('id') + ' .slider-handle.custom::before { content: "' + custom_handle + '" }');
customStyleSheet.appendTo('body');
// document.styleSheets[0].addRule('#' + elementObject.attr('id') + ' .slider-handle.custom::before', '{ content: "' + custom_handle + '" }');
}
sliderObject = new Slider(elementObject[0], createSliderSettings());
/* a11y : slider need a label */
if(rootElementObject.attr("aria-labelledby") && $(sliderObject.getElement()).find("[role='slider']:not('.hide')").length) {
$(sliderObject.getElement()).find("[role='slider']:not('.hide')").attr("aria-labelledby",rootElementObject.attr("aria-labelledby"));
}
if(rootElementObject.val() === "") {
sliderObject.$sliderElem.addClass('slider-untouched');
if(setPosition) {
triggerChanges();
}
} else {
sliderObject.setValue(rootElementObject.val().toString().replace(separator,'.'), true, true);
}
if (debugMode > 0) {
console.ls.log('sliderDebug slider created', sliderObject);
console.ls.log('sliderDebug slider settings', sliderSettings);
console.ls.log('sliderDebug slider node', elementObject);
}
bindResetAction();
bindSlideActions();
return sliderObject;
},
getSlider = function (force) {
force = force || false;
if (sliderObject != null || force === true) {
sliderObject.destroy();
}
createSlider();
return sliderObject;
};
/**
* Return the slider object and some getters and setters to be able to change stuff on runtime
* The getSlider is a Singleton constructor
*/
return {
init: getSlider,
getSlider: getSlider,
setValue: setValue,
triggerChanges: triggerChanges,
getSettings: function () {
return $.extend(true, {}, sliderSettings);
},
unsetSlider: function () {
sliderObject.destroy();
sliderObject = null;
}
};
}