@ckeditor/ckeditor5-heading/build/heading.js

Headings feature for CKEditor 5.

!function(e){const t=e.en=e.en||{};t.dictionary=Object.assign(t.dictionary||{},{"Choose heading":"Choose heading",Heading:"Heading","Heading 1":"Heading 1","Heading 2":"Heading 2","Heading 3":"Heading 3","Heading 4":"Heading 4","Heading 5":"Heading 5","Heading 6":"Heading 6","Type or paste your content here.":"Type or paste your content here.","Type your title":"Type your title"})}(window.CKEDITOR_TRANSLATIONS||(window.CKEDITOR_TRANSLATIONS={})),
/*!
 * @license Copyright (c) 2003-2025, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md.
 */(()=>{var e={21:e=>{"use strict";e.exports=function(e,t){Object.keys(t).forEach((function(n){e.setAttribute(n,t[n])}))}},51:e=>{"use strict";e.exports=function(e){var t=document.createElement("style");return e.setAttributes(t,e.attributes),e.insert(t,e.options),t}},128:e=>{"use strict";var t={};e.exports=function(e,n){var o=function(e){if(void 0===t[e]){var n=document.querySelector(e);if(window.HTMLIFrameElement&&n instanceof window.HTMLIFrameElement)try{n=n.contentDocument.head}catch(e){n=null}t[e]=n}return t[e]}(e);if(!o)throw new Error("Couldn't find a style target. This probably means that the value for the 'insert' parameter is invalid.");o.appendChild(n)}},179:(e,t,n)=>{e.exports=n(237)("./src/paragraph.js")},237:e=>{"use strict";e.exports=CKEditor5.dll},311:(e,t,n)=>{e.exports=n(237)("./src/ui.js")},355:(e,t,n)=>{e.exports=n(237)("./src/icons.js")},584:(e,t,n)=>{e.exports=n(237)("./src/utils.js")},591:e=>{"use strict";var t=[];function n(e){for(var n=-1,o=0;o<t.length;o++)if(t[o].identifier===e){n=o;break}return n}function o(e,o){for(var r={},a=[],s=0;s<e.length;s++){var d=e[s],c=o.base?d[0]+o.base:d[0],l=r[c]||0,u="".concat(c," ").concat(l);r[c]=l+1;var g=n(u),m={css:d[1],media:d[2],sourceMap:d[3],supports:d[4],layer:d[5]};if(-1!==g)t[g].references++,t[g].updater(m);else{var h=i(m,o);o.byIndex=s,t.splice(s,0,{identifier:u,updater:h,references:1})}a.push(u)}return a}function i(e,t){var n=t.domAPI(t);n.update(e);return function(t){if(t){if(t.css===e.css&&t.media===e.media&&t.sourceMap===e.sourceMap&&t.supports===e.supports&&t.layer===e.layer)return;n.update(e=t)}else n.remove()}}e.exports=function(e,i){var r=o(e=e||[],i=i||{});return function(e){e=e||[];for(var a=0;a<r.length;a++){var s=n(r[a]);t[s].references--}for(var d=o(e,i),c=0;c<r.length;c++){var l=n(r[c]);0===t[l].references&&(t[l].updater(),t.splice(l,1))}r=d}}},639:e=>{"use strict";var t,n=(t=[],function(e,n){return t[e]=n,t.filter(Boolean).join("\n")});function o(e,t,o,i){var r;if(o)r="";else{r="",i.supports&&(r+="@supports (".concat(i.supports,") {")),i.media&&(r+="@media ".concat(i.media," {"));var a=void 0!==i.layer;a&&(r+="@layer".concat(i.layer.length>0?" ".concat(i.layer):""," {")),r+=i.css,a&&(r+="}"),i.media&&(r+="}"),i.supports&&(r+="}")}if(e.styleSheet)e.styleSheet.cssText=n(t,r);else{var s=document.createTextNode(r),d=e.childNodes;d[t]&&e.removeChild(d[t]),d.length?e.insertBefore(s,d[t]):e.appendChild(s)}}var i={singleton:null,singletonCounter:0};e.exports=function(e){if("undefined"==typeof document)return{update:function(){},remove:function(){}};var t=i.singletonCounter++,n=i.singleton||(i.singleton=e.insertStyleElement(e));return{update:function(e){o(n,t,!1,e)},remove:function(e){o(n,t,!0,e)}}}},707:(e,t,n)=>{"use strict";n.d(t,{A:()=>s});var o=n(758),i=n.n(o),r=n(935),a=n.n(r)()(i());a.push([e.id,".ck.ck-heading_heading1 .ck-button__label{font-size:20px}.ck.ck-heading_heading2 .ck-button__label{font-size:17px}.ck.ck-heading_heading3 .ck-button__label{font-size:14px}.ck[class*=ck-heading_heading]{font-weight:700}.ck.ck-dropdown.ck-heading-dropdown .ck-dropdown__button .ck-button__label{width:8em}.ck.ck-dropdown.ck-heading-dropdown .ck-dropdown__panel .ck-list__item{min-width:18em}",""]);const s=a},758:e=>{"use strict";e.exports=function(e){return e[1]}},782:(e,t,n)=>{e.exports=n(237)("./src/core.js")},783:(e,t,n)=>{e.exports=n(237)("./src/engine.js")},935:e=>{"use strict";e.exports=function(e){var t=[];return t.toString=function(){return this.map((function(t){var n="",o=void 0!==t[5];return t[4]&&(n+="@supports (".concat(t[4],") {")),t[2]&&(n+="@media ".concat(t[2]," {")),o&&(n+="@layer".concat(t[5].length>0?" ".concat(t[5]):""," {")),n+=e(t),o&&(n+="}"),t[2]&&(n+="}"),t[4]&&(n+="}"),n})).join("")},t.i=function(e,n,o,i,r){"string"==typeof e&&(e=[[null,e,void 0]]);var a={};if(o)for(var s=0;s<this.length;s++){var d=this[s][0];null!=d&&(a[d]=!0)}for(var c=0;c<e.length;c++){var l=[].concat(e[c]);o&&a[l[0]]||(void 0!==r&&(void 0===l[5]||(l[1]="@layer".concat(l[5].length>0?" ".concat(l[5]):""," {").concat(l[1],"}")),l[5]=r),n&&(l[2]?(l[1]="@media ".concat(l[2]," {").concat(l[1],"}"),l[2]=n):l[2]=n),i&&(l[4]?(l[1]="@supports (".concat(l[4],") {").concat(l[1],"}"),l[4]=i):l[4]="".concat(i)),t.push(l))}},t}}},t={};function n(o){var i=t[o];if(void 0!==i)return i.exports;var r=t[o]={id:o,exports:{}};return e[o](r,r.exports,n),r.exports}n.n=e=>{var t=e&&e.__esModule?()=>e.default:()=>e;return n.d(t,{a:t}),t},n.d=(e,t)=>{for(var o in t)n.o(t,o)&&!n.o(e,o)&&Object.defineProperty(e,o,{enumerable:!0,get:t[o]})},n.o=(e,t)=>Object.prototype.hasOwnProperty.call(e,t),n.r=e=>{"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})};var o={};(()=>{"use strict";n.r(o),n.d(o,{Heading:()=>_,HeadingButtonsUI:()=>T,HeadingEditing:()=>d,HeadingUI:()=>P,Title:()=>I});var e=n(782),t=n(179),i=n(584);class r extends e.Command{modelElements;constructor(e,t){super(e),this.modelElements=t}refresh(){const e=(0,i.first)(this.editor.model.document.selection.getSelectedBlocks());this.value=!!e&&this.modelElements.includes(e.name)&&e.name,this.isEnabled=!!e&&this.modelElements.some((t=>a(e,t,this.editor.model.schema)))}execute(e){const t=this.editor.model,n=t.document,o=e.value;t.change((e=>{const i=Array.from(n.selection.getSelectedBlocks()).filter((e=>a(e,o,t.schema)));for(const t of i)t.is("element",o)||e.rename(t,o)}))}}function a(e,t,n){return n.checkChild(e.parent,t)&&!n.isObject(e)}const s="paragraph";class d extends e.Plugin{static get pluginName(){return"HeadingEditing"}static get isOfficialPlugin(){return!0}constructor(e){super(e),e.config.define("heading",{options:[{model:"paragraph",title:"Paragraph",class:"ck-heading_paragraph"},{model:"heading1",view:"h2",title:"Heading 1",class:"ck-heading_heading1"},{model:"heading2",view:"h3",title:"Heading 2",class:"ck-heading_heading2"},{model:"heading3",view:"h4",title:"Heading 3",class:"ck-heading_heading3"}]})}static get requires(){return[t.Paragraph]}init(){const e=this.editor,t=e.config.get("heading.options"),n=[];for(const o of t)"paragraph"!==o.model&&(e.model.schema.register(o.model,{inheritAllFrom:"$block"}),e.conversion.elementToElement(o),n.push(o.model));this._addDefaultH1Conversion(e),e.commands.add("heading",new r(e,n))}afterInit(){const e=this.editor,t=e.commands.get("enter"),n=e.config.get("heading.options");t&&this.listenTo(t,"afterExecute",((t,o)=>{const i=e.model.document.selection.getFirstPosition().parent;n.some((e=>i.is("element",e.model)))&&!i.is("element",s)&&0===i.childCount&&o.writer.rename(i,s)}))}_addDefaultH1Conversion(e){e.conversion.for("upcast").elementToElement({model:"heading1",view:"h1",converterPriority:i.priorities.low+1})}}var c=n(311);function l(e){const t=e.t,n={Paragraph:t("Paragraph"),"Heading 1":t("Heading 1"),"Heading 2":t("Heading 2"),"Heading 3":t("Heading 3"),"Heading 4":t("Heading 4"),"Heading 5":t("Heading 5"),"Heading 6":t("Heading 6")};return e.config.get("heading.options").map((e=>{const t=n[e.title];return t&&t!=e.title&&(e.title=t),e}))}var u=n(591),g=n.n(u),m=n(639),h=n.n(m),p=n(128),f=n.n(p),v=n(21),w=n.n(v),b=n(51),y=n.n(b),x=n(707),H={attributes:{"data-cke":!0}};H.setAttributes=w(),H.insert=f().bind(null,"head"),H.domAPI=h(),H.insertStyleElement=y();g()(x.A,H);x.A&&x.A.locals&&x.A.locals;class P extends e.Plugin{static get pluginName(){return"HeadingUI"}static get isOfficialPlugin(){return!0}init(){const e=this.editor,t=e.t,n=l(e),o=t("Choose heading"),r=t("Heading");e.ui.componentFactory.add("heading",(t=>{const a={},s=new i.Collection,d=e.commands.get("heading"),l=e.commands.get("paragraph"),u=[d];for(const e of n){const t={type:"button",model:new c.ViewModel({label:e.title,class:e.class,role:"menuitemradio",withText:!0})};"paragraph"===e.model?(t.model.bind("isOn").to(l,"value"),t.model.set("commandName","paragraph"),u.push(l)):(t.model.bind("isOn").to(d,"value",(t=>t===e.model)),t.model.set({commandName:"heading",commandValue:e.model})),s.add(t),a[e.model]=e.title}const g=(0,c.createDropdown)(t);return(0,c.addListToDropdown)(g,s,{ariaLabel:r,role:"menu"}),g.buttonView.set({ariaLabel:r,ariaLabelledBy:void 0,isOn:!1,withText:!0,tooltip:r}),g.extendTemplate({attributes:{class:["ck-heading-dropdown"]}}),g.bind("isEnabled").toMany(u,"isEnabled",((...e)=>e.some((e=>e)))),g.buttonView.bind("label").to(d,"value",l,"value",((e,t)=>{const n=t?"paragraph":e;return"boolean"==typeof n?o:a[n]?a[n]:o})),g.buttonView.bind("ariaLabel").to(d,"value",l,"value",((e,t)=>{const n=t?"paragraph":e;return"boolean"==typeof n?r:a[n]?`${a[n]}, ${r}`:r})),this.listenTo(g,"execute",(t=>{const{commandName:n,commandValue:o}=t.source;e.execute(n,o?{value:o}:void 0),e.editing.view.focus()})),g})),e.ui.componentFactory.add("menuBar:heading",(o=>{const i=new c.MenuBarMenuView(o),r=e.commands.get("heading"),a=e.commands.get("paragraph"),s=[r],d=new c.MenuBarMenuListView(o);i.set({class:"ck-heading-dropdown"}),d.set({ariaLabel:t("Heading"),role:"menu"}),i.buttonView.set({label:t("Heading")}),i.panelView.children.add(d);for(const t of n){const n=new c.MenuBarMenuListItemView(o,i),l=new c.MenuBarMenuListItemButtonView(o);n.children.add(l),d.items.add(n),l.set({isToggleable:!0,label:t.title,role:"menuitemradio",class:t.class}),l.delegate("execute").to(i),l.on("execute",(()=>{const n="paragraph"===t.model?"paragraph":"heading";e.execute(n,{value:t.model}),e.editing.view.focus()})),"paragraph"===t.model?(l.bind("isOn").to(a,"value"),s.push(a)):l.bind("isOn").to(r,"value",(e=>e===t.model))}return i.bind("isEnabled").toMany(s,"isEnabled",((...e)=>e.some((e=>e)))),i}))}}class _ extends e.Plugin{static get requires(){return[d,P]}static get pluginName(){return"Heading"}static get isOfficialPlugin(){return!0}}var E=n(355);const C=(()=>({heading1:E.IconHeading1,heading2:E.IconHeading2,heading3:E.IconHeading3,heading4:E.IconHeading4,heading5:E.IconHeading5,heading6:E.IconHeading6}))();class T extends e.Plugin{init(){l(this.editor).filter((e=>"paragraph"!==e.model)).map((e=>this._createButton(e)))}_createButton(e){const t=this.editor;t.ui.componentFactory.add(e.model,(n=>{const o=new c.ButtonView(n),i=t.commands.get("heading");return o.label=e.title,o.icon=e.icon||C[e.model],o.tooltip=!0,o.isToggleable=!0,o.bind("isEnabled").to(i),o.bind("isOn").to(i,"value",(t=>t==e.model)),o.on("execute",(()=>{t.execute("heading",{value:e.model}),t.editing.view.focus()})),o}))}}var k=n(783);const A=new Set(["paragraph","heading1","heading2","heading3","heading4","heading5","heading6"]);class I extends e.Plugin{_bodyPlaceholder=new Map;static get pluginName(){return"Title"}static get isOfficialPlugin(){return!0}static get requires(){return["Paragraph"]}init(){const e=this.editor,t=e.model;t.schema.register("title",{isBlock:!0,allowIn:"$root"}),t.schema.register("title-content",{isBlock:!0,allowIn:"title",allowAttributes:["alignment"]}),t.schema.extend("$text",{allowIn:"title-content"}),t.schema.addAttributeCheck((e=>{if(e.endsWith("title-content $text"))return!1})),e.editing.mapper.on("modelToViewPosition",B(e.editing.view)),e.data.mapper.on("modelToViewPosition",B(e.editing.view)),e.conversion.for("downcast").elementToElement({model:"title-content",view:"h1"}),e.conversion.for("downcast").add((e=>e.on("insert:title",((e,t,n)=>{n.consumable.consume(t.item,e.name)})))),e.data.upcastDispatcher.on("element:h1",O,{priority:"high"}),e.data.upcastDispatcher.on("element:h2",O,{priority:"high"}),e.data.upcastDispatcher.on("element:h3",O,{priority:"high"}),t.document.registerPostFixer((e=>this._fixTitleContent(e))),t.document.registerPostFixer((e=>this._fixTitleElement(e))),t.document.registerPostFixer((e=>this._fixBodyElement(e))),t.document.registerPostFixer((e=>this._fixExtraParagraph(e))),this._attachPlaceholders(),this._attachTabPressHandling()}getTitle(e={}){const t=e.rootName?e.rootName:void 0,n=this._getTitleElement(t).getChild(0);return this.editor.data.stringify(n,e)}getBody(e={}){const t=this.editor,n=t.data,o=t.model,i=e.rootName?e.rootName:void 0,r=t.model.document.getRoot(i),a=t.editing.view,s=new k.DowncastWriter(a.document),d=o.createRangeIn(r),c=s.createDocumentFragment(),l=o.createPositionAfter(r.getChild(0)),u=o.createRange(l,o.createPositionAt(r,"end")),g=new Map;for(const e of o.markers){const t=u.getIntersection(e.getRange());t&&g.set(e.name,t)}return n.mapper.clearBindings(),n.mapper.bindElements(r,c),n.downcastDispatcher.convert(d,g,s,e),s.remove(s.createRangeOn(c.getChild(0))),t.data.processor.toData(c)}_getTitleElement(e){const t=this.editor.model.document.getRoot(e);for(const e of t.getChildren())if(S(e))return e}_fixTitleContent(e){let t=!1;for(const n of this.editor.model.document.getRootNames()){const o=this._getTitleElement(n);if(!o||1===o.maxOffset)continue;const i=Array.from(o.getChildren());i.shift();for(const t of i)e.move(e.createRangeOn(t),o,"after"),e.rename(t,"paragraph");t=!0}return t}_fixTitleElement(e){let t=!1;const n=this.editor.model;for(const o of this.editor.model.document.getRoots()){const i=Array.from(o.getChildren()).filter(S),r=i[0],a=o.getChild(0);if(a.is("element","title"))i.length>1&&(M(i,e,n),t=!0);else if(r||A.has(a.name))A.has(a.name)?N(a,e,n):e.move(e.createRangeOn(r),o,0),M(i,e,n),t=!0;else{const n=e.createElement("title");e.insert(n,o),e.insertElement("title-content",n),t=!0}}return t}_fixBodyElement(e){let t=!1;for(const n of this.editor.model.document.getRootNames()){const o=this.editor.model.document.getRoot(n);if(o.childCount<2){const i=e.createElement("paragraph");e.insert(i,o,1),this._bodyPlaceholder.set(n,i),t=!0}}return t}_fixExtraParagraph(e){let t=!1;for(const n of this.editor.model.document.getRootNames()){const o=this.editor.model.document.getRoot(n),i=this._bodyPlaceholder.get(n);D(i,o)&&(this._bodyPlaceholder.delete(n),e.remove(i),t=!0)}return t}_attachPlaceholders(){const e=this.editor,t=e.t,n=e.editing.view,o=e.sourceElement,i=e.config.get("title.placeholder")||t("Type your title"),r=e.config.get("placeholder")||o&&"textarea"===o.tagName.toLowerCase()&&o.getAttribute("placeholder")||t("Type or paste your content here.");e.editing.downcastDispatcher.on("insert:title-content",((e,t,o)=>{const r=o.mapper.toViewElement(t.item);r.placeholder=i,(0,k.enablePlaceholder)({view:n,element:r,keepOnFocus:!0})}));const a=new Map;n.document.registerPostFixer((e=>{let t=!1;for(const o of n.document.roots){if(o.isEmpty)continue;const n=o.getChild(1),i=a.get(o.rootName);n!==i&&(i&&((0,k.hidePlaceholder)(e,i),e.removeAttribute("data-placeholder",i)),e.setAttribute("data-placeholder",r,n),a.set(o.rootName,n),t=!0),t=(0,k.needsPlaceholder)(n,!0)&&2===o.childCount&&"p"===n.name?!!(0,k.showPlaceholder)(e,n)||t:!!(0,k.hidePlaceholder)(e,n)||t}return t}))}_attachTabPressHandling(){const e=this.editor,t=e.model;e.keystrokes.set("TAB",((e,n)=>{t.change((e=>{const o=t.document.selection,i=Array.from(o.getSelectedBlocks());if(1===i.length&&i[0].is("element","title-content")){const t=o.getFirstPosition().root.getChild(1);e.setSelection(t,0),n()}}))})),e.keystrokes.set("SHIFT + TAB",((n,o)=>{t.change((n=>{const r=t.document.selection;if(!r.isCollapsed)return;const a=(0,i.first)(r.getSelectedBlocks()),s=r.getFirstPosition(),d=e.model.document.getRoot(s.root.rootName),c=d.getChild(0);a===d.getChild(1)&&s.isAtStart&&(n.setSelection(c.getChild(0),0),o())}))}))}}function O(e,t,n){const o=t.modelCursor,i=t.viewItem;if(!o.isAtStart||!o.parent.is("element","$root"))return;if(!n.consumable.consume(i,{name:!0}))return;const r=n.writer,a=r.createElement("title"),s=r.createElement("title-content");r.append(s,a),r.insert(a,o),n.convertChildren(i,s),n.updateConversionResult(a,t)}function B(e){return(t,n)=>{const o=n.modelPosition.parent;if(!o.is("element","title"))return;const i=o.parent,r=n.mapper.toViewElement(i);n.viewPosition=e.createPositionAt(r,0),t.stop()}}function S(e){return e.is("element","title")}function N(e,t,n){const o=t.createElement("title");t.insert(o,e,"before"),t.insert(e,o,0),t.rename(e,"title-content"),n.schema.removeDisallowedAttributes([e],t)}function M(e,t,n){let o=!1;for(const i of e)0!==i.index&&(R(i,t,n),o=!0);return o}function R(e,t,n){const o=e.getChild(0);o.isEmpty?t.remove(e):(t.move(t.createRangeOn(o),e,"before"),t.rename(o,"paragraph"),t.remove(e),n.schema.removeDisallowedAttributes([o],t))}function D(e,t){return!(!e||!e.is("element","paragraph")||e.childCount)&&!(t.childCount<=2||t.getChild(t.childCount-1)!==e)}})(),(window.CKEditor5=window.CKEditor5||{}).heading=o})();