code-input.min.js

/**
 * **code-input** is a library which lets you create custom HTML `<code-input>`
 * elements that act like `<textarea>` elements but support syntax-highlighted
 * code, implemented using any typical syntax highlighting library.
 *
 * License of whole library for bundlers:
 *
 * Copyright 2021-2025 Oliver Geer and contributors
 * @license MIT
 *
 * **<https://code-input-js.org>**
 */"use strict";var codeInput={observedAttributes:["value","placeholder","language","lang","template"],textareaSyncAttributes:["value","min","max","type","pattern","autocomplete","autocorrect","autofocus","cols","dirname","disabled","form","maxlength","minlength","name","placeholder","readonly","required","rows","spellcheck","wrap"],textareaSyncEvents:["change","selectionchange","invalid","input","focus","blur","focusin","focusout"],usedTemplates:{},defaultTemplate:void 0,templateNotYetRegisteredQueue:{},registerTemplate:function(a,b){if(!("string"==typeof a||a instanceof String))throw TypeError(`code-input: Name of template "${a}" must be a string.`);if(!("function"==typeof b.highlight||b.highlight instanceof Function))throw TypeError(`code-input: Template for "${a}" invalid, because the highlight function provided is not a function; it is "${b.highlight}". Please make sure you use one of the constructors in codeInput.templates, and that you provide the correct arguments.`);if(!("boolean"==typeof b.includeCodeInputInHighlightFunc||b.includeCodeInputInHighlightFunc instanceof Boolean))throw TypeError(`code-input: Template for "${a}" invalid, because the includeCodeInputInHighlightFunc value provided is not a true or false; it is "${b.includeCodeInputInHighlightFunc}". Please make sure you use one of the constructors in codeInput.templates, and that you provide the correct arguments.`);if(!("boolean"==typeof b.preElementStyled||b.preElementStyled instanceof Boolean))throw TypeError(`code-input: Template for "${a}" invalid, because the preElementStyled value provided is not a true or false; it is "${b.preElementStyled}". Please make sure you use one of the constructors in codeInput.templates, and that you provide the correct arguments.`);if(!("boolean"==typeof b.isCode||b.isCode instanceof Boolean))throw TypeError(`code-input: Template for "${a}" invalid, because the isCode value provided is not a true or false; it is "${b.isCode}". Please make sure you use one of the constructors in codeInput.templates, and that you provide the correct arguments.`);if(!Array.isArray(b.plugins))throw TypeError(`code-input: Template for "${a}" invalid, because the plugin array provided is not an array; it is "${b.plugins}". Please make sure you use one of the constructors in codeInput.templates, and that you provide the correct arguments.`);if(b.plugins.forEach((c,d)=>{if(!(c instanceof codeInput.Plugin))throw TypeError(`code-input: Template for "${a}" invalid, because the plugin provided at index ${d} is not valid; it is "${b.plugins[d]}". Please make sure you use one of the constructors in codeInput.templates, and that you provide the correct arguments.`)}),codeInput.usedTemplates[a]=b,a in codeInput.templateNotYetRegisteredQueue)for(let c in codeInput.templateNotYetRegisteredQueue[a]){const d=codeInput.templateNotYetRegisteredQueue[a][c];d.templateObject=b,d.setup()}if(null==codeInput.defaultTemplate&&(codeInput.defaultTemplate=a,void 0 in codeInput.templateNotYetRegisteredQueue))for(let a in codeInput.templateNotYetRegisteredQueue[void 0]){const c=codeInput.templateNotYetRegisteredQueue[void 0][a];c.templateObject=b,c.setup()}},stylesheetI:0,Template:class{constructor(a=function(){},b=!0,c=!0,d=!1,e=[]){this.highlight=a,this.preElementStyled=b,this.isCode=c,this.includeCodeInputInHighlightFunc=d,this.plugins=e}highlight=function(){};preElementStyled=!0;isCode=!0;includeCodeInputInHighlightFunc=!1;plugins=[]},templates:{prism(a,b=[]){return new codeInput.templates.Prism(a,b)},hljs(a,b=[]){return new codeInput.templates.Hljs(a,b)},characterLimit(a){return{highlight:function(a,b,c=[]){let d=+b.getAttribute("data-character-limit"),e=b.escapeHtml(b.value.slice(0,d)),f=b.escapeHtml(b.value.slice(d));a.innerHTML=`${e}<mark class="overflow">${f}</mark>`,0<f.length&&(a.innerHTML+=` <mark class="overflow-msg">${b.getAttribute("data-overflow-msg")||"(Character limit reached)"}</mark>`)},includeCodeInputInHighlightFunc:!0,preElementStyled:!0,isCode:!1,plugins:a}},rainbowText(a=["red","orangered","orange","goldenrod","gold","green","darkgreen","navy","blue","magenta"],b="",c=[]){return{highlight:function(a,b){let c=[],d=b.value.split(b.template.delimiter);for(let e=0;e<d.length;e++)c.push(`<span style="color: ${b.template.rainbowColors[e%b.template.rainbowColors.length]}">${b.escapeHtml(d[e])}</span>`);a.innerHTML=c.join(b.template.delimiter)},includeCodeInputInHighlightFunc:!0,preElementStyled:!0,isCode:!1,rainbowColors:a,delimiter:b,plugins:c}},character_limit(){return this.characterLimit([])},rainbow_text(a=["red","orangered","orange","goldenrod","gold","green","darkgreen","navy","blue","magenta"],b="",c=[]){return this.rainbowText(a,b,c)},custom(a=function(){},b=!0,c=!0,d=!1,e=[]){return{highlight:a,includeCodeInputInHighlightFunc:d,preElementStyled:b,isCode:c,plugins:e}}},plugins:new Proxy({},{get(a,b){if(a[b]==null)throw ReferenceError(`code-input: Plugin '${b}' is not defined. Please ensure you import the necessary files from the plugins folder in the WebCoder49/code-input repository, in the <head> of your HTML, before the plugin is instatiated.`);return a[b]}}),Plugin:class{constructor(a){a.forEach(a=>{codeInput.observedAttributes.push(a)})}addTranslations(a,b){for(const c in b)a[c]=b[c]}beforeHighlight(){}afterHighlight(){}beforeElementsAdded(){}afterElementsAdded(){}attributeChanged(){}},CodeInput:class extends HTMLElement{constructor(){super()}templateObject=null;textareaElement=null;preElement=null;codeElement=null;dialogContainerElement=null;internalStyle=null;static formAssociated=!0;boundEventCallbacks={};pluginEvt(a,b){for(let c in this.templateObject.plugins){let d=this.templateObject.plugins[c];a in d&&(b===void 0?d[a](this):d[a](this,...b))}}needsHighlight=!1;originalAriaDescription;scheduleHighlight(){this.needsHighlight=!0}animateFrame(){this.needsHighlight&&(this.update(),this.needsHighlight=!1),window.requestAnimationFrame(this.animateFrame.bind(this))}update(){let a=this.codeElement,b=this.value;b+="\n",a.innerHTML=this.escapeHtml(b),this.pluginEvt("beforeHighlight"),this.templateObject.includeCodeInputInHighlightFunc?this.templateObject.highlight(a,this):this.templateObject.highlight(a),this.syncSize(),this.pluginEvt("afterHighlight")}getStyledHighlightingElement(){return this.templateObject.preElementStyled?this.preElement:this.codeElement}syncSize(){const a=getComputedStyle(this.getStyledHighlightingElement()).height;this.textareaElement.style.height=a,this.internalStyle.setProperty("--code-input_synced-height",a);const b=getComputedStyle(this.getStyledHighlightingElement()).width;this.textareaElement.style.width=b,this.internalStyle.setProperty("--code-input_synced-width",b)}syncIfColorNotOverridden(a=function(){}){if(this.checkingColorOverridden)return;this.checkingColorOverridden=!0;const b=this.style.transition;this.style.transition="unset",window.requestAnimationFrame(()=>{if(this.internalStyle.setProperty("--code-input_no-override-color","rgb(0, 0, 0)"),"rgb(0, 0, 0)"!=getComputedStyle(this).color)this.style.transition=b,this.checkingColorOverridden=!1,a();else if(this.internalStyle.setProperty("--code-input_no-override-color","rgb(255, 255, 255)"),"rgb(255, 255, 255)"==getComputedStyle(this).color){this.internalStyle.removeProperty("--code-input_no-override-color"),console.log(this,"Autoadapt; "+b),this.style.transition=b;const a=getComputedStyle(this.getStyledHighlightingElement()).color;this.internalStyle.setProperty("--code-input_highlight-text-color",a),this.internalStyle.setProperty("--code-input_default-caret-color",a),this.checkingColorOverridden=!1}else this.style.transition=b,this.checkingColorOverridden=!1,a();this.internalStyle.removeProperty("--code-input_no-override-color"),console.log(this,"No autoadapt; "+b),this.style.transition=b})}syncColorCompletely(){this.syncIfColorNotOverridden(()=>{this.internalStyle.removeProperty("--code-input_highlight-text-color"),this.internalStyle.setProperty("--code-input_default-caret-color",getComputedStyle(this).color)})}setKeyboardNavInstructions(a,b){this.dialogContainerElement.querySelector(".code-input_keyboard-navigation-instructions").innerText=a,b?this.textareaElement.setAttribute("aria-description",this.originalAriaDescription+". "+a):this.textareaElement.setAttribute("aria-description",a)}escapeHtml(a){return a.replace(/&/g,"&amp;").replace(/</g,"&lt;")}unescapeHtml(a){return a.replace(/&amp;/g,"&").replace(/&lt;/g,"<").replace(/&gt;/g,">")}getTemplate(){let a;return a=null==this.getAttribute("template")?codeInput.defaultTemplate:this.getAttribute("template"),a in codeInput.usedTemplates?codeInput.usedTemplates[a]:(a in codeInput.templateNotYetRegisteredQueue||(codeInput.templateNotYetRegisteredQueue[a]=[]),void codeInput.templateNotYetRegisteredQueue[a].push(this))}setup(){if(null!=this.textareaElement)return;this.classList.add("code-input_registered"),this.mutationObserver=new MutationObserver(this.mutationObserverCallback.bind(this)),this.mutationObserver.observe(this,{attributes:!0,attributeOldValue:!0}),this.classList.add("code-input_registered"),this.templateObject.preElementStyled&&this.classList.add("code-input_pre-element-styled");const a=this.querySelector("textarea[data-code-input-fallback]");let b,c,d,e,f,g=!1;a&&(a===document.activeElement&&(g=!0),b=a.selectionStart,c=a.selectionEnd,d=a.selectionDirection,e=a.scrollLeft,f=a.scrollTop);let h;if(a){let b=a.getAttributeNames();for(let c=0;c<b.length;c++){const d=b[c];"data-code-input-fallback"!=d&&(this.hasAttribute(d)||this.setAttribute(d,a.getAttribute(d)))}h=a.value,this.innerHTML=this.escapeHtml(h)}else h=this.unescapeHtml(this.innerHTML);h=h||this.getAttribute("value")||"",this.pluginEvt("beforeElementsAdded");const i=this.getAttribute("language")||this.getAttribute("lang"),j=this.getAttribute("placeholder")||i||"";this.initialValue=h;const k=document.createElement("textarea");k.placeholder=j,""!=h&&(k.value=h),k.innerHTML=this.innerHTML,this.hasAttribute("spellcheck")||k.setAttribute("spellcheck","false"),k.setAttribute("tabindex",this.getAttribute("tabindex")||0),this.setAttribute("tabindex",-1),this.originalAriaDescription=this.getAttribute("aria-description")||"Code input field",this.addEventListener("mousedown",()=>{this.classList.add("code-input_mouse-focused"),window.setTimeout(()=>{this.syncSize()},0)}),k.addEventListener("blur",()=>{this.classList.remove("code-input_mouse-focused"),window.setTimeout(()=>{this.syncSize()},0)}),k.addEventListener("focus",()=>{window.setTimeout(()=>{this.syncSize()},0)}),this.innerHTML="",this.classList.add("code-input_styles_"+codeInput.stylesheetI);const l=document.createElement("style");l.innerHTML="code-input.code-input_styles_"+codeInput.stylesheetI+" {}",this.appendChild(l),this.internalStyle=l.sheet.cssRules[0].style,codeInput.stylesheetI++;for(let a,b=0;b<this.attributes.length;b++)a=this.attributes[b].name,(codeInput.textareaSyncAttributes.includes(a)||"aria-"==a.substring(0,5))&&k.setAttribute(a,this.getAttribute(a));k.addEventListener("input",()=>{this.value=this.textareaElement.value}),this.textareaElement=k,this.append(k),this.setupTextareaSyncEvents(this.textareaElement);let m=document.createElement("code"),n=document.createElement("pre");n.setAttribute("aria-hidden","true"),n.setAttribute("tabindex","-1"),n.setAttribute("inert",!0),this.preElement=n,this.codeElement=m,n.append(m),this.append(n),this.templateObject.isCode&&i!=null&&""!=i&&m.classList.add("language-"+i.toLowerCase());let o=document.createElement("div");o.classList.add("code-input_dialog-container"),this.append(o),this.dialogContainerElement=o;let p=document.createElement("div");p.classList.add("code-input_keyboard-navigation-instructions"),o.append(p),this.pluginEvt("afterElementsAdded"),this.dispatchEvent(new CustomEvent("code-input_load")),this.value=h,b!==void 0&&(k.setSelectionRange(b,c,d),k.scrollTo(f,e)),g&&k.focus(),this.animateFrame();const q=new ResizeObserver(()=>{this.syncSize()});q.observe(this),q.observe(this.preElement),q.observe(this.codeElement);const r=a=>{"color"==a.propertyName&&this.syncIfColorNotOverridden()};this.preElement.addEventListener("transitionend",r),this.preElement.addEventListener("-webkit-transitionend",r);const s=a=>{"color"==a.propertyName&&this.syncColorCompletely(),a.target==this.dialogContainerElement&&a.stopPropagation()};this.dialogContainerElement.addEventListener("transitionend",s),this.dialogContainerElement.addEventListener("-webkit-transitionend",s),this.addEventListener("transitionend",s),this.addEventListener("-webkit-transitionend",s),this.syncColorCompletely(),this.classList.add("code-input_loaded")}escape_html(a){return this.escapeHtml(a)}get_template(){return this.getTemplate()}get template(){return this.templateObject}set template(a){}connectedCallback(){if(this.templateObject=this.getTemplate(),null!=this.templateObject&&(this.classList.add("code-input_registered"),"loading"===document.readyState?window.addEventListener("DOMContentLoaded",this.setup.bind(this)):this.setup()),"loading"===document.readyState)window.addEventListener("DOMContentLoaded",()=>{const a=this.querySelector("textarea[data-code-input-fallback]");a&&this.setupTextareaSyncEvents(a)});else{const a=this.querySelector("textarea[data-code-input-fallback]");a&&this.setupTextareaSyncEvents(a)}}mutationObserverCallback(a){for(const b of a)if("attributes"===b.type){for(let a=0;a<codeInput.observedAttributes.length;a++)if(b.attributeName==codeInput.observedAttributes[a])return this.attributeChangedCallback(b.attributeName,b.oldValue,super.getAttribute(b.attributeName));for(let a=0;a<codeInput.textareaSyncAttributes.length;a++)if(b.attributeName==codeInput.textareaSyncAttributes[a])return this.attributeChangedCallback(b.attributeName,b.oldValue,super.getAttribute(b.attributeName));if("aria-"==b.attributeName.substring(0,5))return this.attributeChangedCallback(b.attributeName,b.oldValue,super.getAttribute(b.attributeName))}}disconnectedCallback(){this.mutationObserver&&this.mutationObserver.disconnect()}attributeChangedCallback(a,b,c){if(this.isConnected)switch(this.pluginEvt("attributeChanged",[a,b,c]),a){case"value":this.value=c;break;case"template":this.templateObject=codeInput.usedTemplates[c||codeInput.defaultTemplate],this.templateObject.preElementStyled?this.classList.add("code-input_pre-element-styled"):this.classList.remove("code-input_pre-element-styled"),this.scheduleHighlight();break;case"lang":case"language":let d=this.codeElement,e=this.textareaElement;if(null!=c&&(c=c.toLowerCase(),d.classList.contains(`language-${c}`)))break;null!==b&&(b=b.toLowerCase(),d.classList.remove("language-"+b),d.parentElement.classList.remove("language-"+b)),d.classList.remove("language-none"),d.parentElement.classList.remove("language-none"),null!=c&&""!=c&&d.classList.add("language-"+c),(e.placeholder==b||null==b&&""==e.placeholder)&&(e.placeholder=c),this.scheduleHighlight();break;default:codeInput.textareaSyncAttributes.includes(a)||"aria-"==a.substring(0,5)?null==c||null==c?this.textareaElement.removeAttribute(a):this.textareaElement.setAttribute(a,c):codeInput.textareaSyncAttributes.regexp.forEach(b=>{a.match(b)&&(null==c?this.textareaElement.removeAttribute(a):this.textareaElement.setAttribute(a,c))})}}setupTextareaSyncEvents(a){for(let b=0;b<codeInput.textareaSyncEvents.length;b++){const c=codeInput.textareaSyncEvents[b];a.addEventListener(c,a=>{a.bubbles||this.dispatchEvent(new a.constructor(a.type,a))})}}addEventListener(a,b,c=void 0){let d=function(a){"function"==typeof b?b(a):b&&b.handleEvent&&b.handleEvent(a)}.bind(this);if(this.boundEventCallbacks[b]=d,!codeInput.textareaSyncEvents.includes(a))void 0===c?super.addEventListener(a,d):super.addEventListener(a,d,c);else if(this.boundEventCallbacks[b]=d,void 0===c){if(null==this.textareaElement){const b=this.querySelector("textarea[data-code-input-fallback]");b&&b.addEventListener(a,d),this.addEventListener("code-input_load",()=>{this.textareaElement.addEventListener(a,d)})}else this.textareaElement.addEventListener(a,d);}else if(null==this.textareaElement){const b=this.querySelector("textarea[data-code-input-fallback]");b&&b.addEventListener(a,d,c),this.addEventListener("code-input_load",()=>{this.textareaElement.addEventListener(a,d,c)})}else this.textareaElement.addEventListener(a,d,c)}removeEventListener(a,b,c=void 0){let d=this.boundEventCallbacks[b];if(!codeInput.textareaSyncEvents.includes(a))void 0===c?super.removeEventListener(a,d):super.removeEventListener(a,d,c);else if(void 0===c){if(null==this.textareaElement){const b=this.querySelector("textarea[data-code-input-fallback]");b&&b.removeEventListener(a,d),this.addEventListener("code-input_load",()=>{this.textareaElement.removeEventListener(a,d)})}else this.textareaElement.removeEventListener(a,d);}else if(null==this.textareaElement){const b=this.querySelector("textarea[data-code-input-fallback]");b&&b.removeEventListener(a,d,c),this.addEventListener("code-input_load",()=>{this.textareaElement.removeEventListener(a,d,c)})}else this.textareaElement.removeEventListener(a,d,c)}getTextareaProperty(a,b=void 0){if(this.textareaElement)return this.textareaElement[a];else{const c=this.querySelector("textarea[data-code-input-fallback]");if(c)return c[a];if(void 0===b)throw new Error("Cannot get "+a+" of an unregistered code-input element without a data-code-input-fallback textarea.");return b}}setTextareaProperty(a,b,c=!0){if(this.textareaElement)this.textareaElement[a]=b;else{const d=this.querySelector("textarea[data-code-input-fallback]");if(d)d[a]=b;else{if(!c)return(!1);throw new Error("Cannot set "+a+" of an unregistered code-input element without a data-code-input-fallback textarea.")}}return(!0)}get autocomplete(){return this.getAttribute("autocomplete")}set autocomplete(a){return this.setAttribute("autocomplete",a)}get cols(){return this.getTextareaProperty("cols",+this.getAttribute("cols"))}set cols(a){this.setAttribute("cols",a)}get defaultValue(){return this.initialValue}set defaultValue(a){this.initialValue=a}get textContent(){return this.initialValue}set textContent(a){this.initialValue=a}get dirName(){return this.getAttribute("dirName")||""}set dirName(a){this.setAttribute("dirname",a)}get disabled(){return this.hasAttribute("disabled")}set disabled(a){a?this.setAttribute("disabled",!0):this.removeAttribute("disabled")}get form(){return this.getTextareaProperty("form")}get labels(){return this.getTextareaProperty("labels")}get maxLength(){const a=+this.getAttribute("maxlength");return isNaN(a)?-1:a}set maxLength(a){-1==a?this.removeAttribute("maxlength"):this.setAttribute("maxlength",a)}get minLength(){const a=+this.getAttribute("minlength");return isNaN(a)?-1:a}set minLength(a){-1==a?this.removeAttribute("minlength"):this.setAttribute("minlength",a)}get name(){return this.getAttribute("name")||""}set name(a){this.setAttribute("name",a)}get placeholder(){return this.getAttribute("placeholder")||""}set placeholder(a){this.setAttribute("placeholder",a)}get readOnly(){return this.hasAttribute("readonly")}set readOnly(a){a?this.setAttribute("readonly",!0):this.removeAttribute("readonly")}get required(){return this.hasAttribute("readonly")}set required(a){a?this.setAttribute("readonly",!0):this.removeAttribute("readonly")}get rows(){return this.getTextareaProperty("rows",+this.getAttribute("rows"))}set rows(a){this.setAttribute("rows",a)}get selectionDirection(){return this.getTextareaProperty("selectionDirection")}set selectionDirection(a){this.setTextareaProperty("selectionDirection",a)}get selectionEnd(){return this.getTextareaProperty("selectionEnd")}set selectionEnd(a){this.setTextareaProperty("selectionEnd",a)}get selectionStart(){return this.getTextareaProperty("selectionStart")}set selectionStart(a){this.setTextareaProperty("selectionStart",a)}get textLength(){return this.value.length}get type(){return"textarea"}get validationMessage(){return this.getTextareaProperty("validationMessage")}get validity(){return this.getTextareaProperty("validationMessage")}get value(){return this.getTextareaProperty("value",this.getAttribute("value")||this.innerHTML)}set value(a){a=a||"",this.setTextareaProperty("value",a,!1)?this.textareaElement&&this.scheduleHighlight():this.innerHTML=a}get willValidate(){return this.getTextareaProperty("willValidate",this.disabled||this.readOnly)}get wrap(){return this.getAttribute("wrap")||""}set wrap(a){this.setAttribute("wrap",a)}getTextareaMethod(a){if(this.textareaElement)return this.textareaElement[a].bind(this.textareaElement);else{const b=this.querySelector("textarea[data-code-input-fallback]");if(b)return b[a].bind(b);throw new Error("Cannot call "+a+" on an unregistered code-input element without a data-code-input-fallback textarea.")}}blur(a={}){this.getTextareaMethod("blur")(a)}checkValidity(){return this.getTextareaMethod("checkValidity")()}focus(a={}){this.getTextareaMethod("focus")(a)}reportValidity(){return this.getTextareaMethod("reportValidity")()}setCustomValidity(a){this.getTextareaMethod("setCustomValidity")(a)}setRangeText(a,b=this.selectionStart,c=this.selectionEnd,d="preserve"){this.getTextareaMethod("setRangeText")(a,b,c,d),this.textareaElement&&this.scheduleHighlight()}setSelectionRange(a,b,c="none"){this.getTextareaMethod("setSelectionRange")(a,b,c)}pluginData={};formResetCallback(){this.value=this.initialValue}}};{class a extends codeInput.Template{constructor(a,b=[],c=!0){super(a.highlightElement,c,!0,!1,b)}}codeInput.templates.Prism=a;class b extends codeInput.Template{constructor(a,b=[],c=!1){super(function(b){b.removeAttribute("data-highlighted"),a.highlightElement(b)},c,!0,!1,b)}}codeInput.templates.Hljs=b}customElements.define("code-input",codeInput.CodeInput);