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@uiw/react-codemirror

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CodeMirror component for React.

uiwjs.github.io/react-codemirror

uiwjs/react-codemirror

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/*! 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Ee(this.parser,t,n,r,i,o,s,this.scheduleOn)}updateViewport(e){if(this.viewport.from==e.from&&this.viewport.to==e.to)return!1;this.viewport=e;let t=this.skipped.length;for(let n=0;n<this.skipped.length;n++){let{from:t,to:r}=this.skipped[n];t<e.to&&r>e.from&&(this.fragments=Me(this.fragments,t,r),this.skipped.splice(n--,1))}return!(this.skipped.length>=t)&&(this.reset(),!0)}reset(){this.parse&&(this.takeTree(),this.parse=null)}skipUntilInView(e,t){this.skipped.push({from:e,to:t})}static getSkippingParser(e){return new class extends class{startParse(e,t,n){return"string"==typeof e&&(e=new F(e)),n=n?n.length?n.map((e=>new p(e.from,e.to))):[new p(0,0)]:[new p(0,e.length)],this.createParse(e,t||[],n)}parse(e,t,n){let r=this.startParse(e,t,n);for(;;){let e=r.advance();if(e)return e}}}{createParse(t,n,r){let i=r[0].from,o=r[r.length-1].to;return{parsedPos:i,advance(){let t=Ae;if(t){for(let e of r)t.tempSkipped.push(e);e&&(t.scheduleOn=t.scheduleOn?Promise.all([t.scheduleOn,e]):e)}return this.parsedPos=o,new x(y.none,[],[],o-i)},stoppedAt:null,stopAt(){}}}}}isDone(e){e=Math.min(e,this.state.doc.length);let t=this.fragments;return this.treeLen>=e&&t.length&&0==t[0].from&&t[0].to>=e}static get(){return Ae}}function Me(e,t,n){return _.applyChanges(e,[{fromA:t,toA:n,fromB:t,toB:n}])}class Oe{constructor(e){this.context=e,this.tree=e.tree}apply(e){if(!e.docChanged&&this.tree==this.context.tree)return this;let t=this.context.changes(e.changes,e.state),n=this.context.treeLen==e.startState.doc.length?void 0:Math.max(e.changes.mapPos(this.context.treeLen),t.viewport.to);return t.work(20,n)||t.takeTree(),new Oe(t)}static init(e){let t=Math.min(3e3,e.doc.length),n=Ee.create(e.facet(Be).parser,e,{from:0,to:t});return n.work(20,t)||n.takeTree(),new Oe(n)}}xe.state=h.StateField.define({create:Oe.init,update(e,t){for(let n of t.effects)if(n.is(xe.setState))return n.value;return t.startState.facet(Be)!=t.state.facet(Be)?Oe.init(t.state):e.apply(t)}});let De=e=>{let t=setTimeout((()=>e()),500);return()=>clearTimeout(t)};"undefined"!=typeof requestIdleCallback&&(De=e=>{let t=-1,n=setTimeout((()=>{t=requestIdleCallback(e,{timeout:400})}),100);return()=>t<0?clearTimeout(n):cancelIdleCallback(t)});const Pe="undefined"!=typeof navigator&&(null===(be=navigator.scheduling)||void 0===be?void 0:be.isInputPending)?()=>navigator.scheduling.isInputPending():null,Ie=u.ViewPlugin.fromClass(class{constructor(e){this.view=e,this.working=null,this.workScheduled=0,this.chunkEnd=-1,this.chunkBudget=-1,this.work=this.work.bind(this),this.scheduleWork()}update(e){let t=this.view.state.field(xe.state).context;(t.updateViewport(e.view.viewport)||this.view.viewport.to>t.treeLen)&&this.scheduleWork(),e.docChanged&&(this.view.hasFocus&&(this.chunkBudget+=50),this.scheduleWork()),this.checkAsyncSchedule(t)}scheduleWork(){if(this.working)return;let{state:e}=this.view,t=e.field(xe.state);t.tree==t.context.tree&&t.context.isDone(e.doc.length)||(this.working=De(this.work))}work(e){this.working=null;let t=Date.now();if(this.chunkEnd<t&&(this.chunkEnd<0||this.view.hasFocus)&&(this.chunkEnd=t+3e4,this.chunkBudget=3e3),this.chunkBudget<=0)return;let{state:n,viewport:{to:r}}=this.view,i=n.field(xe.state);if(i.tree==i.context.tree&&i.context.isDone(r+1e5))return;let o=Date.now()+Math.min(this.chunkBudget,100,e&&!Pe?Math.max(25,e.timeRemaining()-5):1e9),s=i.context.treeLen<r&&n.doc.length>r+1e3,l=i.context.work((()=>Pe&&Pe()||Date.now()>o),r+(s?0:1e5));this.chunkBudget-=Date.now()-t,(l||this.chunkBudget<=0)&&(i.context.takeTree(),this.view.dispatch({effects:xe.setState.of(new Oe(i.context))})),this.chunkBudget>0&&(!l||s)&&this.scheduleWork(),this.checkAsyncSchedule(i.context)}checkAsyncSchedule(e){e.scheduleOn&&(this.workScheduled++,e.scheduleOn.then((()=>this.scheduleWork())).catch((e=>(0,u.logException)(this.view.state,e))).then((()=>this.workScheduled--)),e.scheduleOn=null)}destroy(){this.working&&this.working()}isWorking(){return!!(this.working||this.workScheduled>0)}},{eventHandlers:{focus(){this.scheduleWork()}}}),Be=h.Facet.define({combine:e=>e.length?e[0]:null,enables:[xe.state,Ie]});const Te=h.Facet.define(),Ne=h.Facet.define({combine:e=>{if(!e.length)return" ";if(!/^(?: +|\t+)$/.test(e[0]))throw new Error("Invalid indent unit: "+JSON.stringify(e[0]));return e[0]}});function Re(e){let t=e.facet(Ne);return 9==t.charCodeAt(0)?e.tabSize*t.length:t.length}function Le(e,t){let n="",r=e.tabSize;if(9==e.facet(Ne).charCodeAt(0))for(;t>=r;)n+="\t",t-=r;for(let i=0;i<t;i++)n+=" ";return n}function _e(e,t){e instanceof h.EditorState&&(e=new Fe(e));for(let r of e.state.facet(Te)){let n=r(e,t);if(null!=n)return n}let n=Se(e.state);return n?function(e,t,n){return qe(t.resolveInner(n).enterUnfinishedNodesBefore(n),n,e)}(e,n,t):null}class Fe{constructor(e,t={}){this.state=e,this.options=t,this.unit=Re(e)}lineAt(e,t=1){let n=this.state.doc.lineAt(e),{simulateBreak:r,simulateDoubleBreak:i}=this.options;return null!=r&&r>=n.from&&r<=n.to?i&&r==e?{text:"",from:e}:(t<0?r<e:r<=e)?{text:n.text.slice(r-n.from),from:r}:{text:n.text.slice(0,r-n.from),from:n.from}:n}textAfterPos(e,t=1){if(this.options.simulateDoubleBreak&&e==this.options.simulateBreak)return"";let{text:n,from:r}=this.lineAt(e,t);return n.slice(e-r,Math.min(n.length,e+100-r))}column(e,t=1){let{text:n,from:r}=this.lineAt(e,t),i=this.countColumn(n,e-r),o=this.options.overrideIndentation?this.options.overrideIndentation(r):-1;return o>-1&&(i+=o-this.countColumn(n,n.search(/\S|$/))),i}countColumn(e,t=e.length){return(0,h.countColumn)(e,this.state.tabSize,t)}lineIndent(e,t=1){let{text:n,from:r}=this.lineAt(e,t),i=this.options.overrideIndentation;if(i){let e=i(r);if(e>-1)return e}return this.countColumn(n,n.search(/\S|$/))}get simulatedBreak(){return this.options.simulateBreak||null}}const Ve=new m;function je(e){let t=e.type.prop(Ve);if(t)return t;let n,r=e.firstChild;if(r&&(n=r.type.prop(m.closedBy))){let t=e.lastChild,r=t&&n.indexOf(t.name)>-1;return e=>$e(e,!0,1,void 0,r&&!function(e){return e.pos==e.options.simulateBreak&&e.options.simulateDoubleBreak}(e)?t.from:void 0)}return null==e.parent?ze:null}function qe(e,t,n){for(;e;e=e.parent){let r=je(e);if(r)return r(We.create(n,t,e))}return null}function ze(){return 0}class We extends Fe{constructor(e,t,n){super(e.state,e.options),this.base=e,this.pos=t,this.node=n}static create(e,t,n){return new We(e,t,n)}get textAfter(){return this.textAfterPos(this.pos)}get baseIndent(){let e=this.state.doc.lineAt(this.node.from);for(;;){let t=this.node.resolve(e.from);for(;t.parent&&t.parent.from==t.from;)t=t.parent;if(Ue(t,this.node))break;e=this.state.doc.lineAt(t.from)}return this.lineIndent(e.from)}continue(){let e=this.node.parent;return e?qe(e,this.pos,this.base):0}}function Ue(e,t){for(let n=t;n;n=n.parent)if(e==n)return!0;return!1}function $e(e,t,n,r,i){let o=e.textAfter,s=o.match(/^\s*/)[0].length,l=r&&o.slice(s,s+r.length)==r||i==e.pos+s,a=t?function(e){let t=e.node,n=t.childAfter(t.from),r=t.lastChild;if(!n)return null;let i=e.options.simulateBreak,o=e.state.doc.lineAt(n.from),s=null==i||i<=o.from?o.to:Math.min(o.to,i);for(let l=n.to;;){let e=t.childAfter(l);if(!e||e==r)return null;if(!e.type.isSkipped)return e.from<s?n:null;l=e.to}}(e):null;return a?l?e.column(a.from):e.column(a.to):e.baseIndent+(l?0:e.unit*n)}function He(){return h.EditorState.transactionFilter.of((e=>{if(!e.docChanged||!e.isUserEvent("input.type")&&!e.isUserEvent("input.complete"))return e;let t=e.startState.languageDataAt("indentOnInput",e.startState.selection.main.head);if(!t.length)return e;let n=e.newDoc,{head:r}=e.newSelection.main,i=n.lineAt(r);if(r>i.from+200)return e;let o=n.sliceString(i.from,r);if(!t.some((e=>e.test(o))))return e;let{state:s}=e,l=-1,a=[];for(let{head:c}of s.selection.ranges){let e=s.doc.lineAt(c);if(e.from==l)continue;l=e.from;let t=_e(s,e.from);if(null==t)continue;let n=/^\s*/.exec(e.text)[0],r=Le(s,t);n!=r&&a.push({from:e.from,to:e.from+n.length,insert:r})}return a.length?[e,{changes:a,sequential:!0}]:e}))}const Je=h.Facet.define(),Ke=new m;function Ge(e){let t=e.lastChild;return t&&t.to==e.to&&t.type.isError}function Qe(e,t,n){for(let r of e.facet(Je)){let i=r(e,t,n);if(i)return i}return function(e,t,n){let r=Se(e);if(r.length<n)return null;let i=null;for(let o=r.resolveInner(n);o;o=o.parent){if(o.to<=n||o.from>n)continue;if(i&&o.from<t)break;let s=o.type.prop(Ke);if(s&&(o.to<r.length-50||r.length==e.doc.length||!Ge(o))){let r=s(o,e);r&&r.from<=n&&r.from>=t&&r.to>n&&(i=r)}}return i}(e,t,n)}function Ye(e,t){let n=t.mapPos(e.from,1),r=t.mapPos(e.to,-1);return n>=r?void 0:{from:n,to:r}}const Ze=h.StateEffect.define({map:Ye}),Xe=h.StateEffect.define({map:Ye});function et(e){let t=[];for(let{head:n}of e.state.selection.ranges)t.some((e=>e.from<=n&&e.to>=n))||t.push(e.lineBlockAt(n));return t}const tt=h.StateField.define({create:()=>u.Decoration.none,update(e,t){e=e.map(t.changes);for(let n of t.effects)n.is(Ze)&&!rt(e,n.value.from,n.value.to)?e=e.update({add:[ht.range(n.value.from,n.value.to)]}):n.is(Xe)&&(e=e.update({filter:(e,t)=>n.value.from!=e||n.value.to!=t,filterFrom:n.value.from,filterTo:n.value.to}));if(t.selection){let n=!1,{head:r}=t.selection.main;e.between(r,r,((e,t)=>{e<r&&t>r&&(n=!0)})),n&&(e=e.update({filterFrom:r,filterTo:r,filter:(e,t)=>t<=r||e>=r}))}return e},provide:e=>u.EditorView.decorations.from(e),toJSON(e,t){let n=[];return e.between(0,t.doc.length,((e,t)=>{n.push(e,t)})),n},fromJSON(e){if(!Array.isArray(e)||e.length%2)throw new RangeError("Invalid JSON for fold state");let t=[];for(let n=0;n<e.length;){let r=e[n++],i=e[n++];if("number"!=typeof r||"number"!=typeof i)throw new RangeError("Invalid JSON for fold state");t.push(ht.range(r,i))}return u.Decoration.set(t,!0)}});function nt(e,t,n){var r;let i=null;return null===(r=e.field(tt,!1))||void 0===r||r.between(t,n,((e,t)=>{(!i||i.from>e)&&(i={from:e,to:t})})),i}function rt(e,t,n){let r=!1;return e.between(t,t,((e,i)=>{e==t&&i==n&&(r=!0)})),r}function it(e,t){return e.field(tt,!1)?t:t.concat(h.StateEffect.appendConfig.of(ct()))}function ot(e,t,n=!0){let r=e.state.doc.lineAt(t.from).number,i=e.state.doc.lineAt(t.to).number;return u.EditorView.announce.of(`${e.state.phrase(n?"Folded lines":"Unfolded lines")} ${r} ${e.state.phrase("to")} ${i}.`)}const st=[{key:"Ctrl-Shift-[",mac:"Cmd-Alt-[",run:e=>{for(let t of et(e)){let n=Qe(e.state,t.from,t.to);if(n)return e.dispatch({effects:it(e.state,[Ze.of(n),ot(e,n)])}),!0}return!1}},{key:"Ctrl-Shift-]",mac:"Cmd-Alt-]",run:e=>{if(!e.state.field(tt,!1))return!1;let t=[];for(let n of et(e)){let r=nt(e.state,n.from,n.to);r&&t.push(Xe.of(r),ot(e,r,!1))}return t.length&&e.dispatch({effects:t}),t.length>0}},{key:"Ctrl-Alt-[",run:e=>{let{state:t}=e,n=[];for(let r=0;r<t.doc.length;){let i=e.lineBlockAt(r),o=Qe(t,i.from,i.to);o&&n.push(Ze.of(o)),r=(o?e.lineBlockAt(o.to):i).to+1}return n.length&&e.dispatch({effects:it(e.state,n)}),!!n.length}},{key:"Ctrl-Alt-]",run:e=>{let t=e.state.field(tt,!1);if(!t||!t.size)return!1;let n=[];return t.between(0,e.state.doc.length,((e,t)=>{n.push(Xe.of({from:e,to:t}))})),e.dispatch({effects:n}),!0}}],lt={placeholderDOM:null,placeholderText:"\u2026"},at=h.Facet.define({combine:e=>(0,h.combineConfig)(e,lt)});function ct(e){let t=[tt,pt];return e&&t.push(at.of(e)),t}const ht=u.Decoration.replace({widget:new class extends u.WidgetType{toDOM(e){let{state:t}=e,n=t.facet(at),r=t=>{let n=e.lineBlockAt(e.posAtDOM(t.target)),r=nt(e.state,n.from,n.to);r&&e.dispatch({effects:Xe.of(r)}),t.preventDefault()};if(n.placeholderDOM)return n.placeholderDOM(e,r);let i=document.createElement("span");return i.textContent=n.placeholderText,i.setAttribute("aria-label",t.phrase("folded code")),i.title=t.phrase("unfold"),i.className="cm-foldPlaceholder",i.onclick=r,i}}}),ut={openText:"\u2304",closedText:"\u203a",markerDOM:null,domEventHandlers:{},foldingChanged:()=>!1};class ft extends u.GutterMarker{constructor(e,t){super(),this.config=e,this.open=t}eq(e){return this.config==e.config&&this.open==e.open}toDOM(e){if(this.config.markerDOM)return this.config.markerDOM(this.open);let t=document.createElement("span");return t.textContent=this.open?this.config.openText:this.config.closedText,t.title=e.state.phrase(this.open?"Fold line":"Unfold line"),t}}function dt(e={}){let t=Object.assign(Object.assign({},ut),e),n=new ft(t,!0),r=new ft(t,!1),i=u.ViewPlugin.fromClass(class{constructor(e){this.from=e.viewport.from,this.markers=this.buildMarkers(e)}update(e){(e.docChanged||e.viewportChanged||e.startState.facet(Be)!=e.state.facet(Be)||e.startState.field(tt,!1)!=e.state.field(tt,!1)||Se(e.startState)!=Se(e.state)||t.foldingChanged(e))&&(this.markers=this.buildMarkers(e.view))}buildMarkers(e){let t=new h.RangeSetBuilder;for(let i of e.viewportLineBlocks){let o=nt(e.state,i.from,i.to)?r:Qe(e.state,i.from,i.to)?n:null;o&&t.add(i.from,i.from,o)}return t.finish()}}),{domEventHandlers:o}=t;return[i,(0,u.gutter)({class:"cm-foldGutter",markers(e){var t;return(null===(t=e.plugin(i))||void 0===t?void 0:t.markers)||h.RangeSet.empty},initialSpacer:()=>new ft(t,!1),domEventHandlers:Object.assign(Object.assign({},o),{click:(e,t,n)=>{if(o.click&&o.click(e,t,n))return!0;let r=nt(e.state,t.from,t.to);if(r)return e.dispatch({effects:Xe.of(r)}),!0;let i=Qe(e.state,t.from,t.to);return!!i&&(e.dispatch({effects:Ze.of(i)}),!0)}})}),ct()]}const pt=u.EditorView.baseTheme({".cm-foldPlaceholder":{backgroundColor:"#eee",border:"1px solid #ddd",color:"#888",borderRadius:".2em",margin:"0 1px",padding:"0 1px",cursor:"pointer"},".cm-foldGutter span":{padding:"0 1px",cursor:"pointer"}});class mt{constructor(e,t){let n;function r(e){let t=ge.newName();return(n||(n=Object.create(null)))["."+t]=e,t}const i="string"==typeof t.all?t.all:t.all?r(t.all):void 0,o=t.scope;this.scope=o instanceof xe?e=>e.prop(we)==o.data:o?e=>e==o:void 0,this.style=J(e.map((e=>({tag:e.tag,class:e.class||r(Object.assign({},e,{tag:null}))}))),{all:i}).style,this.module=n?new ge(n):null,this.themeType=t.themeType}static define(e,t){return new mt(e,t||{})}}const gt=h.Facet.define(),yt=h.Facet.define({combine:e=>e.length?[e[0]]:null});function vt(e){let t=e.facet(gt);return t.length?t:e.facet(yt)}function bt(e,t){let n,r=[xt];return e instanceof mt&&(e.module&&r.push(u.EditorView.styleModule.of(e.module)),n=e.themeType),(null===t||void 0===t?void 0:t.fallback)?r.push(yt.of(e)):n?r.push(gt.computeN([u.EditorView.darkTheme],(t=>t.facet(u.EditorView.darkTheme)==("dark"==n)?[e]:[]))):r.push(gt.of(e)),r}class wt{constructor(e){this.markCache=Object.create(null),this.tree=Se(e.state),this.decorations=this.buildDeco(e,vt(e.state))}update(e){let t=Se(e.state),n=vt(e.state),r=n!=vt(e.startState);t.length<e.view.viewport.to&&!r&&t.type==this.tree.type?this.decorations=this.decorations.map(e.changes):(t!=this.tree||e.viewportChanged||r)&&(this.tree=t,this.decorations=this.buildDeco(e.view,n))}buildDeco(e,t){if(!t||!this.tree.length)return u.Decoration.none;let n=new h.RangeSetBuilder;for(let{from:r,to:i}of e.visibleRanges)G(this.tree,t,((e,t,r)=>{n.add(e,t,this.markCache[r]||(this.markCache[r]=u.Decoration.mark({class:r})))}),r,i);return n.finish()}}const xt=h.Prec.high(u.ViewPlugin.fromClass(wt,{decorations:e=>e.decorations})),kt=mt.define([{tag:fe.meta,color:"#7a757a"},{tag:fe.link,textDecoration:"underline"},{tag:fe.heading,textDecoration:"underline",fontWeight:"bold"},{tag:fe.emphasis,fontStyle:"italic"},{tag:fe.strong,fontWeight:"bold"},{tag:fe.strikethrough,textDecoration:"line-through"},{tag:fe.keyword,color:"#708"},{tag:[fe.atom,fe.bool,fe.url,fe.contentSeparator,fe.labelName],color:"#219"},{tag:[fe.literal,fe.inserted],color:"#164"},{tag:[fe.string,fe.deleted],color:"#a11"},{tag:[fe.regexp,fe.escape,fe.special(fe.string)],color:"#e40"},{tag:fe.definition(fe.variableName),color:"#00f"},{tag:fe.local(fe.variableName),color:"#30a"},{tag:[fe.typeName,fe.namespace],color:"#085"},{tag:fe.className,color:"#167"},{tag:[fe.special(fe.variableName),fe.macroName],color:"#256"},{tag:fe.definition(fe.propertyName),color:"#00c"},{tag:fe.comment,color:"#940"},{tag:fe.invalid,color:"#f00"}]),St=u.EditorView.baseTheme({"&.cm-focused .cm-matchingBracket":{backgroundColor:"#328c8252"},"&.cm-focused .cm-nonmatchingBracket":{backgroundColor:"#bb555544"}}),Ct="