mirror of
https://github.com/psychopy/psychojs.git
synced 2025-05-10 10:40:54 +00:00
291 lines
9.6 KiB
JavaScript
291 lines
9.6 KiB
JavaScript
/**
|
|
* @desc Slider Star.
|
|
* */
|
|
|
|
class SliderStar
|
|
{
|
|
constructor (cfg = {})
|
|
{
|
|
const surveyCSS = cfg.question.css;
|
|
this._CSS_CLASSES = {
|
|
// INPUT_TEXT: `${surveyCSS.text.root} slider-star-text-input`
|
|
INPUT_TEXT: `slider-star-text-input`
|
|
};
|
|
this._question = cfg.question;
|
|
this._DOM = cfg.el;
|
|
this._engagedInputIdx = undefined;
|
|
this._pdowns = {};
|
|
|
|
this._bindedHandlers =
|
|
{
|
|
_handleInput: this._handleInput.bind(this),
|
|
_handlePointerDown: this._handlePointerDown.bind(this),
|
|
_handlePointerUp: this._handlePointerUp.bind(this),
|
|
_handlePointerMove: this._handlePointerMove.bind(this)
|
|
};
|
|
|
|
this._init(this._question, this._DOM);
|
|
}
|
|
|
|
_markStarsActive (n, qIdx)
|
|
{
|
|
let stars = this._DOM.querySelectorAll(`.stars-container[data-idx="${qIdx}"] .star-slider-star-input`);
|
|
let i;
|
|
for (i = 0; i < stars.length; i++)
|
|
{
|
|
stars[i].classList.remove("active");
|
|
if (i <= n - 1)
|
|
{
|
|
stars[i].classList.add("active");
|
|
}
|
|
}
|
|
}
|
|
|
|
_handleIndividualValueUpdate (v, qIdx)
|
|
{
|
|
if (this._question.value === undefined)
|
|
{
|
|
this._question.value = {};
|
|
}
|
|
if (this._question.value[qIdx] !== v)
|
|
{
|
|
this._question.value[qIdx] = v;
|
|
this._DOM.querySelector(`.slider-star-text-input[name="${qIdx}"]`).value = v;
|
|
this._markStarsActive(v, qIdx);
|
|
// Triggering internal SurveyJS mechanism for value update.
|
|
this._question.value = this._question.value;
|
|
}
|
|
}
|
|
|
|
_handleInput (e)
|
|
{
|
|
let v = parseInt(e.currentTarget.value, 10) || 0;
|
|
v = Math.max(0, Math.min(this._question.starCount, v));
|
|
const qIdx = e.currentTarget.name;
|
|
this._handleIndividualValueUpdate(v, qIdx);
|
|
}
|
|
|
|
_handlePointerDown (e)
|
|
{
|
|
e.preventDefault();
|
|
this._engagedInputIdx = e.currentTarget.dataset.idx;
|
|
this._pdowns[this._engagedInputIdx] = true;
|
|
const starIdx = [].indexOf.call(e.target.parentElement.children, e.target);
|
|
this._handleIndividualValueUpdate(starIdx + 1, this._engagedInputIdx);
|
|
}
|
|
|
|
_handlePointerUp (e)
|
|
{
|
|
if (this._engagedInputIdx !== undefined)
|
|
{
|
|
this._pdowns[this._engagedInputIdx] = false;
|
|
}
|
|
this._engagedInputIdx = undefined;
|
|
}
|
|
|
|
_handlePointerMove (e)
|
|
{
|
|
if (this._pdowns[this._engagedInputIdx])
|
|
{
|
|
e.preventDefault();
|
|
const starIdx = [].indexOf.call(e.target.parentElement.children, e.target);
|
|
this._handleIndividualValueUpdate(starIdx + 1, this._engagedInputIdx);
|
|
}
|
|
}
|
|
|
|
_init (question, el)
|
|
{
|
|
let t = performance.now();
|
|
let starsHTML = new Array(question.starCount).fill(`<div class="star-slider-star-input">★</div>`).join("");
|
|
let html = "";
|
|
let i;
|
|
for (i = 0; i < question.choices.length; i++)
|
|
{
|
|
html +=
|
|
`<div class="star-slider-container">
|
|
<div class="star-slider-title">${question.choices[i].text}</div>
|
|
<div class="star-slider-inputs">
|
|
<div class="stars-container" data-idx="${question.choices[i].value}">${starsHTML}</div>
|
|
${question.showValue ?
|
|
`<input type="number" class="${this._CSS_CLASSES.INPUT_TEXT}" max="${question.starCount}" min="0" name="${question.choices[i].value}">` :
|
|
""}
|
|
</div>
|
|
</div>`;
|
|
}
|
|
|
|
el.insertAdjacentHTML("beforeend", html);
|
|
const inputDOMS = el.querySelectorAll(".slider-star-text-input");
|
|
const starsContainers = el.querySelectorAll(".stars-container");
|
|
|
|
// Amount of inputDOMS and starsCointainer is the same.
|
|
// Also iterating over starContainers since text inputs might be absent.
|
|
for (i = 0; i < starsContainers.length; i++)
|
|
{
|
|
inputDOMS[i].addEventListener("input", this._bindedHandlers._handleInput);
|
|
starsContainers[i].addEventListener("pointerdown", this._bindedHandlers._handlePointerDown);
|
|
starsContainers[i].addEventListener("pointermove", this._bindedHandlers._handlePointerMove);
|
|
}
|
|
window.addEventListener("pointerup", this._bindedHandlers._handlePointerUp);
|
|
}
|
|
}
|
|
|
|
export default function init (Survey) {
|
|
var widget = {
|
|
//the widget name. It should be unique and written in lowcase.
|
|
name: "sliderstar",
|
|
|
|
//the widget title. It is how it will appear on the toolbox of the SurveyJS Editor/Builder
|
|
title: "Slider Star",
|
|
|
|
//the name of the icon on the toolbox. We will leave it empty to use the standard one
|
|
iconName: "",
|
|
|
|
//If the widgets depends on third-party library(s) then here you may check if this library(s) is loaded
|
|
widgetIsLoaded: function () {
|
|
//return typeof $ == "function" && !!$.fn.select2; //return true if jQuery and select2 widget are loaded on the page
|
|
return true; //we do not require anything so we just return true.
|
|
},
|
|
|
|
//SurveyJS library calls this function for every question to check, if it should use this widget instead of default rendering/behavior
|
|
isFit: function (question) {
|
|
//we return true if the type of question is sliderstar
|
|
return question.getType() === 'sliderstar';
|
|
//the following code will activate the widget for a text question with inputType equals to date
|
|
//return question.getType() === 'text' && question.inputType === "date";
|
|
},
|
|
|
|
//Use this function to create a new class or add new properties or remove unneeded properties from your widget
|
|
//activatedBy tells how your widget has been activated by: property, type or customType
|
|
//property - it means that it will activated if a property of the existing question type is set to particular value, for example inputType = "date"
|
|
//type - you are changing the behaviour of entire question type. For example render radiogroup question differently, have a fancy radio buttons
|
|
//customType - you are creating a new type, like in our example "sliderstar"
|
|
activatedByChanged: function (activatedBy) {
|
|
//we do not need to check acticatedBy parameter, since we will use our widget for customType only
|
|
//We are creating a new class and derived it from text question type. It means that text model (properties and fuctions) will be available to us
|
|
Survey.JsonObject.metaData.addClass("sliderstar", [], null, "text");
|
|
//signaturepad is derived from "empty" class - basic question class
|
|
//Survey.JsonObject.metaData.addClass("signaturepad", [], null, "empty");
|
|
|
|
//Add new property(s)
|
|
//For more information go to https://surveyjs.io/Examples/Builder/?id=addproperties#content-docs
|
|
Survey.JsonObject.metaData.addProperties("sliderstar", [
|
|
{
|
|
name: "choices",
|
|
isArray: true,
|
|
default: []
|
|
},
|
|
{
|
|
name: "starCount",
|
|
default: 5
|
|
},
|
|
{
|
|
name: "showValue",
|
|
default: true
|
|
},
|
|
{
|
|
name: "starType",
|
|
default: "descrete"
|
|
}
|
|
]);
|
|
},
|
|
|
|
//If you want to use the default question rendering then set this property to true. We do not need any default rendering, we will use our our htmlTemplate
|
|
isDefaultRender: false,
|
|
|
|
//You should use it if your set the isDefaultRender to false
|
|
htmlTemplate: "<div></div>",
|
|
|
|
//The main function, rendering and two-way binding
|
|
afterRender: function (question, el) {
|
|
new SliderStar({ question, el });
|
|
|
|
// let containers = el.querySelectorAll(".srv-slider-container");
|
|
// let inputDOMS = el.querySelectorAll(".srv-slider");
|
|
// let sliderDisplayDOMS = el.querySelectorAll(".srv-slider-display");
|
|
// if (!(question.value instanceof Array))
|
|
// {
|
|
// question.value = new Array(inputDOMS.length);
|
|
// question.value.fill(0);
|
|
// }
|
|
|
|
// for (i = 0; i < inputDOMS.length; i++)
|
|
// {
|
|
// inputDOMS[i].min = question.minVal;
|
|
// inputDOMS[i].max = question.maxVal;
|
|
// inputDOMS[i].addEventListener("input", (e) => {
|
|
// let idx = parseInt(e.currentTarget.dataset.idx, 10);
|
|
// question.value[idx] = parseFloat(e.currentTarget.value);
|
|
// // using .value setter to trigger update properly.
|
|
// // otherwise on survey competion it returns array of nulls.
|
|
// question.value = question.value;
|
|
// onValueChangedCallback();
|
|
// });
|
|
|
|
// // Handle grid lines?
|
|
// }
|
|
|
|
|
|
// function positionSliderDisplay (v, min, max, displayDOM)
|
|
// {
|
|
// v = parseFloat(v);
|
|
// min = parseFloat(min);
|
|
// max = parseFloat(max);
|
|
// // Formula is (halfThumbWidth - v * (fullThumbWidth / 100)), taking into account that display has translate(-50%, 0).
|
|
// // Size of thumb is set in CSS.
|
|
// displayDOM.style.left = `calc(${(v - min) / (max - min) * 100}% + ${10 - v * 0.2}px)`
|
|
// }
|
|
|
|
|
|
// var onValueChangedCallback = function () {
|
|
// let i;
|
|
// let v;
|
|
// for (i = 0; i < question.choices.length; i++)
|
|
// {
|
|
// v = question.value[i] || 0;
|
|
// inputDOMS[i].value = v;
|
|
// sliderDisplayDOMS[i].innerText = v;
|
|
// positionSliderDisplay(v, question.minVal, question.maxVal, sliderDisplayDOMS[i]);
|
|
// }
|
|
// }
|
|
|
|
// var onReadOnlyChangedCallback = function() {
|
|
// let i;
|
|
// if (question.isReadOnly) {
|
|
// for (i = 0; i < question.choices.length; i++)
|
|
// {
|
|
// inputDOMS[i].setAttribute('disabled', 'disabled');
|
|
// }
|
|
// } else {
|
|
// for (i = 0; i < question.choices.length; i++)
|
|
// {
|
|
// inputDOMS[i].removeAttribute("disabled");
|
|
// }
|
|
// }
|
|
// };
|
|
|
|
// if question becomes readonly/enabled add/remove disabled attribute
|
|
// question.readOnlyChangedCallback = onReadOnlyChangedCallback;
|
|
|
|
// if the question value changed in the code, for example you have changed it in JavaScript
|
|
// question.valueChangedCallback = onValueChangedCallback;
|
|
|
|
// set initial value
|
|
// onValueChangedCallback();
|
|
|
|
// make elements disabled if needed
|
|
// onReadOnlyChangedCallback();
|
|
},
|
|
|
|
//Use it to destroy the widget. It is typically needed by jQuery widgets
|
|
willUnmount: function (question, el) {
|
|
//We do not need to clear anything in our simple example
|
|
//Here is the example to destroy the image picker
|
|
//var $el = $(el).find("select");
|
|
//$el.data('picker').destroy();
|
|
}
|
|
}
|
|
|
|
//Register our widget in singleton custom widget collection
|
|
Survey.CustomWidgetCollection.Instance.addCustomWidget(widget, "customtype");
|
|
}
|