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n=je(this.config.theme);if(Fe(n,this.el),this._buildToolbar(),this._updateModeButtons(),this._bindToolbarKeyboard(),this._initAriaLive(),this._bindEvents(),this._bindContextMenu(),this._trackOutlineScroll(),!1!==this.config.floatingToolbar&&this._initFloatingToolbar(),this.textarea.value=this._value,this._wordWrap||(this.textarea.style.whiteSpace="pre"),this._pushHistory(),this._render(),this._updateWordCount(),this._buildOutline(),this._zenMode&&this._setZen(!0),Array.isArray(this.config.plugins)){const e=this.config.plugins.map(e=>"string"==typeof e?{...$e[e],_isStringRef:!0}:e).filter(Boolean);Te(e).forEach(e=>this.use(e))}if(this.config.autofocus&&!this.config.readOnly&&this.focus(),"function"==typeof this.config.onCreate)try{this.config.onCreate(this)}catch(e){}bt.trigger("afterCreate",this)}_buildDOM(){const e=document.createElement("div");var t;e.className=`me-wrapper me-theme-${t=this.config.theme,t&&"auto"!==t?t:Re("auto")}`,this.config.readOnly&&e.classList.add("me-readonly"),e.dataset.id=this.id,e.setAttribute("role","application"),e.setAttribute("aria-label",this.t("edit")),this.config.className&&this.config.className.split(/\s+/).filter(Boolean).forEach(t=>e.classList.add(t));const n=this.config.height;e.style.height="number"==typeof n?`${n}px`:n||"400px",this.config.style&&"object"==typeof this.config.style&&Object.entries(this.config.style).forEach(([t,n])=>{n&&(e.style[t]=n)});const r=document.createElement("div");r.className="me-toolbar",r.setAttribute("role","toolbar");const i=document.createElement("div");i.className=`me-body me-mode-${this._mode}`;const o=document.createElement("div");o.className="me-editor-pane";const s=document.createElement("div");s.className="me-editor-inner";const a=document.createElement("div");a.className="me-gutter",this.config.lineNumbers||(a.style.display="none"),s.appendChild(a);const l=document.createElement("textarea");l.className="me-textarea",l.spellcheck=!!this.config.spellcheck,l.readOnly=!!this.config.readOnly,this.config.maxLength&&this.config.maxLength>0&&(l.maxLength=this.config.maxLength),l.style.tabSize=String(this.config.tabSize||2),l.placeholder=this.config.placeholder||this.t("placeholder"),l.setAttribute("aria-label",this.t("edit")),s.appendChild(l),o.appendChild(s);const c=document.createElement("div");c.className="me-divider",c.setAttribute("role","separator");const h=document.createElement("div");h.className="me-preview-pane",h.setAttribute("role","region"),h.setAttribute("aria-label",this.t("preview"));const d=document.createElement("div");d.className="me-preview",h.appendChild(d),i.appendChild(o),i.appendChild(c),i.appendChild(h),e.appendChild(r),e.appendChild(i);let u=null;this.config.wordCount&&(u=document.createElement("div"),u.className="me-statusbar",e.appendChild(u)),this.container.appendChild(e),this.el=e,this.toolbarEl=r,this.bodyEl=i,this.editorPane=o,this.editorInner=s,this.gutter=a,this.previewPane=h,this.dividerEl=c,this.textarea=l,this.previewEl=d,this.statusEl=u,this._restoreDividerPosition()}_buildToolbar(){const e=this.config.toolbar;if(!e||!Array.isArray(e)||0===e.length)return;const t=[];if(e.forEach(e=>{if("|"===e){const e=document.createElement("span");return e.className="me-toolbar-sep",void this.toolbarEl.appendChild(e)}"edit"!==e&&"split"!==e&&"preview"!==e&&"fullscreen"!==e?this.toolbarEl.appendChild(this._createBtn(e)):t.push(e)}),t.length){const e=document.createElement("div");e.className="me-toolbar-group",t.forEach(t=>{const n=this._createBtn(t);"edit"!==t&&"split"!==t&&"preview"!==t||(n.dataset.mode=t,t===this._mode&&n.classList.add("me-active")),e.appendChild(n)}),this.toolbarEl.appendChild(e)}}_createBtn(e){const n=document.createElement("button");n.type="button",n.className=`me-btn me-btn-${e}`,n.dataset.action=e;const i=this.t(e)||e;return n.title=i,n.setAttribute("aria-label",i),n.innerHTML=r[e]||`${t(e)}`,n}_bindEvents(){const e=this.textarea,t=()=>{const t=this._value;if(this._value=e.value,bt.trigger("beforeChange",this),this._emit("beforeChange",t,this._value),this._scheduleRender(),this._scheduleHistory(),this._updateWordCount(),this._renderGutter(),this._updateOutline(),this._emit("input",this._value),this._emit("change",this._value),"function"==typeof this.config.onInput)try{this.config.onInput(this._value,this)}catch(e){}if("function"==typeof this.config.onChange)try{this.config.onChange(this._value,this)}catch(e){}this._emit("afterChange",this._value),bt.trigger("afterChange",this)};e.addEventListener("input",t);const n=e=>{"Enter"!==e.key||e.shiftKey||e.ctrlKey||e.metaKey||this._handleSmartEnter(e),this._handleKeydown(e)};e.addEventListener("keydown",n);const r=e=>this._handleBracketAutoClose(e);e.addEventListener("keypress",r);const i=()=>{this._updateCurrentLine(),this._emitCursorEvents()};e.addEventListener("click",i),e.addEventListener("keyup",i);const o=()=>{this._syncScroll()};e.addEventListener("scroll",o);const s=()=>{if(!this.config.syncScroll||"split"!==this._mode)return;if(this._syncing)return;this._syncing=!0;const t=this.previewPane.scrollHeight-this.previewPane.clientHeight;if(t<=0)return void(this._syncing=!1);const n=this.previewPane.scrollTop/t,r=e.scrollHeight-e.clientHeight;if(e.scrollTop=n*r,this.gutter){const e=this.gutter.scrollHeight-this.gutter.clientHeight;this.gutter.scrollTop=e>0?n*e:n*r}requestAnimationFrame(()=>{this._syncing=!1})};this.previewPane.addEventListener("scroll",s);const a=()=>{if(this._emit("focus"),"function"==typeof this.config.onFocus)try{this.config.onFocus(this)}catch(e){}},l=()=>{if(this._emit("blur"),"function"==typeof this.config.onBlur)try{this.config.onBlur(this)}catch(e){}};e.addEventListener("focus",a),e.addEventListener("blur",l),this.previewEl.addEventListener("click",e=>{const t=e.target.closest("a");if(!t)return;const n=t.getAttribute("href");if(n&&!n.startsWith("#"))if(e.preventDefault(),this._emit("linkClick",{href:n,text:t.textContent}),"function"!=typeof this.config.onLinkClick)window.open(n,"_blank","noopener");else try{this.config.onLinkClick(n,t.textContent,this)}catch(e){}});const c=e=>{const t=e.target.closest(".me-btn");if(!t)return;const n=t.dataset.mode;if(n)return void this.setMode(n);const r=t.dataset.action;r&&this.exec(r)};this.toolbarEl.addEventListener("click",c);const h=e=>this._bindDividerDrag(e);this.dividerEl.addEventListener("pointerdown",h),this._bindDragDrop(),this._cleanups.push(()=>{e.removeEventListener("input",t),e.removeEventListener("keydown",n),e.removeEventListener("keypress",r),e.removeEventListener("scroll",o),this.previewPane.removeEventListener("scroll",s),e.removeEventListener("click",i),e.removeEventListener("keyup",i),e.removeEventListener("focus",a),e.removeEventListener("blur",l),this.toolbarEl.removeEventListener("click",c),this.dividerEl.removeEventListener("pointerdown",h)})}_handleKeydown(e){if("Tab"===e.key)return e.preventDefault(),void this._handleTab(e.shiftKey);if(this._shortcuts.length)for(const t of this._shortcuts){const n=t.ctrl?e.ctrlKey||e.metaKey:!e.ctrlKey&&!e.metaKey,r=t.shift?e.shiftKey:!e.shiftKey,i=t.alt?e.altKey:!e.altKey;if(e.key.toLowerCase()===t.key&&n&&r&&i){if(e.preventDefault(),"string"==typeof t.handler)this.exec(t.handler);else if("function"==typeof t.handler)try{t.handler(this)}catch(e){}return}}if(!e.ctrlKey&&!e.metaKey)return;const t=e.key.toLowerCase(),n={b:"bold",i:"italic",k:"link",u:"underline",e:"code",1:"h1",2:"h2",3:"h3",q:"quote"};if("z"!==t||e.shiftKey)if("z"===t&&e.shiftKey||"y"===t)e.preventDefault(),this.redo();else if("s"===t){if(e.preventDefault(),this._emit("save",this._value),"function"==typeof this.config.onSave)try{this.config.onSave(this._value,this)}catch(e){}}else n[t]&&(e.preventDefault(),this.exec(n[t]));else e.preventDefault(),this.undo()}_handleTab(e){const t=this.textarea,n=t.selectionStart,r=t.selectionEnd,i=this.config.tabSize||0,o=i>0?" ".repeat(i):"\t";if(n===r)t.value=t.value.slice(0,n)+o+t.value.slice(r),t.selectionStart=t.selectionEnd=n+o.length;else{const i=t.value.lastIndexOf("\n",n-1)+1,s=t.value.slice(i,r).split("\n");let a;a=e?s.map(e=>e.replace(/^(\t| {1,4})/,"")).join("\n"):s.map(e=>o+e).join("\n"),t.value=t.value.slice(0,i)+a+t.value.slice(r),t.selectionStart=i,t.selectionEnd=i+a.length}this._value=t.value,this._pushHistory(),this._render(),this._emit("change",this._value)}_bindDividerDrag(e){if("split"!==this._mode)return;e.preventDefault();const t=e.clientX,n=this.editorPane.getBoundingClientRect().width,r=this.bodyEl.getBoundingClientRect().width;if(r<=0)return;const i=this.dividerEl,o=e=>{const o=e.clientX-t;let s=n+o;const a=r-80-i.offsetWidth;s=Math.max(80,Math.min(a,s));const l=s/r*100;this.editorPane.style.flex=`0 0 ${l}%`,this.previewPane.style.flex=`1 1 ${100-l}%`},s=()=>{window.removeEventListener("pointermove",o),window.removeEventListener("pointerup",s),this._saveDividerPosition()};window.addEventListener("pointermove",o),window.addEventListener("pointerup",s)}_saveDividerPosition(){try{const e=this.editorPane.style.flex;e&&localStorage.setItem(`metona-editor-divider-${this.id}`,e)}catch(e){}}_restoreDividerPosition(){try{const e=localStorage.getItem(`metona-editor-divider-${this.id}`);e&&"split"===this._mode&&(this.editorPane.style.flex=e,this.previewPane.style.flex="1 1 auto")}catch(e){}}_scheduleRender(){this._renderRaf||(this._renderRaf=requestAnimationFrame(()=>{this._renderRaf=null,this._render()}))}_render(){if("edit"===this._mode)return void this._renderGutter();if(this._lastRenderedValue===this._value)return;let e;this._lastRenderedValue=this._value,bt.trigger("beforeRender",this),this._emit("beforeRender",this);try{e=this._renderFn(this._value,{highlight:this._highlightFn||void 0,locale:this.getLocale()})}catch(n){e=`
${this.t("renderError")}: ${t(n.message)}
`}if("function"==typeof this.config.sanitize)try{e=this.config.sanitize(e)}catch(e){}this.previewEl.innerHTML=e,this._renderGutter(),bt.trigger("afterRender",this),this._emit("afterRender",this)}_renderGutter(){if(!this.config.lineNumbers||!this.gutter)return;const e=this.getStats(),t=e.lines>0?e.lines:1,n=this.gutter.children.length;if(n!==t)if(n${r}`;this.gutter.insertAdjacentHTML("beforeend",e)}else for(;this.gutter.children.length>t;)this.gutter.removeChild(this.gutter.lastChild)}_updateCurrentLine(){if(!this.gutter)return;const e=this.textarea.selectionStart,t=this._value.substring(0,e).split("\n").length,n=this.gutter.querySelector(".me-gutter-active");n&&n.classList.remove("me-gutter-active");const r=this.gutter.children[t-1];r&&r.classList.add("me-gutter-active")}_emitCursorEvents(){if(!this.textarea)return;const e=this.textarea.selectionStart,t=this.textarea.selectionEnd;e===this._lastSelStart&&t===this._lastSelEnd||(this._lastSelStart=e,this._lastSelEnd=t,this._emit("selectionChange",{start:e,end:t,text:this._value.slice(e,t)})),this._emit("cursorMove",this.getCursorPosition())}_handleSmartEnter(e){const t=this.textarea,n=t.selectionStart,r=t.value,i=r.lastIndexOf("\n",n-1)+1,o=r.slice(i,n),s=o.match(/^(\s*)([-*+]|\d+\.)\s(.*)/);if(s){const o=s[1],a=s[2];if(!s[3].trim())return e.preventDefault(),t.value=r.slice(0,i)+"\n"+r.slice(n),t.selectionStart=t.selectionEnd=i,this._value=t.value,this._pushHistory(),this._renderGutter(),void this._emit("change",this._value);let l=a;if(/^\d+\.$/.test(a)){const e=parseInt(a,10);isNaN(e)||(l=e+1+".")}e.preventDefault();const c="\n"+o+l+" ";return t.value=r.slice(0,n)+c+r.slice(t.selectionEnd),t.selectionStart=t.selectionEnd=n+c.length,this._value=t.value,this._pushHistory(),this._renderGutter(),void this._emit("change",this._value)}const a=o.match(/^(\s*>+\s?)(.*)/);if(a){const o=a[1];if(!a[2].trim())return e.preventDefault(),t.value=r.slice(0,i)+"\n"+r.slice(n),t.selectionStart=t.selectionEnd=i,this._value=t.value,this._pushHistory(),this._renderGutter(),void this._emit("change",this._value);e.preventDefault();const s="\n"+o;t.value=r.slice(0,n)+s+r.slice(t.selectionEnd),t.selectionStart=t.selectionEnd=n+s.length,this._value=t.value,this._pushHistory(),this._renderGutter(),this._emit("change",this._value)}}_handleBracketAutoClose(e){if(!this.config.autoBrackets)return;const t=this.textarea,n=e.key,r=ft[n];if(!r)return;const i=t.selectionStart,o=t.selectionEnd;if(i!==o){e.preventDefault();const s=t.value.slice(i,o),a=n+s+r;return t.value=t.value.slice(0,i)+a+t.value.slice(o),t.selectionStart=i+1,t.selectionEnd=i+1+s.length,this._value=t.value,this._pushHistory(),void this._emit("change",this._value)}const s=t.value[i]||"";if(n===r){if(s===r)return e.preventDefault(),void(t.selectionStart=t.selectionEnd=i+1);if(/\w/.test(s))return}e.preventDefault();const a=n+r;t.value=t.value.slice(0,i)+a+t.value.slice(o),t.selectionStart=t.selectionEnd=i+1,this._value=t.value,this._pushHistory(),this._emit("change",this._value)}_bindDragDrop(){const e=this.textarea;if(!e)return;const t=e=>{e.preventDefault(),e.dataTransfer&&(e.dataTransfer.dropEffect="copy")},n=e=>{e.preventDefault();const t=e.dataTransfer?.files;if(t&&t.length)return void Array.from(t).forEach(e=>{if(e.type.startsWith("image/")){const t=e.size/1024;if(t>500)return void this.toast(this.t("imageTooLarge",{size:t.toFixed(0),max:500})||`Image too large (${t.toFixed(0)}KB > 500KB)`,{type:"warning"});const n=new FileReader;n.onload=()=>{this.insert(`![${e.name}](${n.result})\n`)},n.readAsDataURL(e)}else if(e.type.startsWith("text/")||/\.(md|txt|js|ts|json|css|html|xml|yml|yaml)$/i.test(e.name)){const t=new FileReader;t.onload=()=>this.insert(t.result),t.readAsText(e)}});const n=e.dataTransfer?.getData("text/plain");n&&this.insert(n)};e.addEventListener("dragover",t),e.addEventListener("drop",n),this._cleanups.push(()=>{e.removeEventListener("dragover",t),e.removeEventListener("drop",n)})}_scheduleHistory(){this._historyTimer&&clearTimeout(this._historyTimer),this._historyTimer=setTimeout(()=>this._pushHistory(),this.config.historyDebounce||400)}_pushHistory(){if(this.config.maxLength&&this.config.maxLength>0&&this._value.length>this.config.maxLength&&(this._value=this._value.slice(0,this.config.maxLength),this.textarea&&(this.textarea.value=this._value)),this._history[this._historyIndex]===this._value)return;this._history=this._history.slice(0,this._historyIndex+1),this._history.push(this._value);const e=this.config.historyLimit>0?this.config.historyLimit:100;for(;this._history.length>e;)this._history.shift();this._historyIndex=this._history.length-1}undo(){return this._historyIndex<=0||(this._captureCursor(),this._historyIndex--,this._applyHistory(),this._restoreCapturedCursor()),this}redo(){return this._historyIndex>=this._history.length-1||(this._captureCursor(),this._historyIndex++,this._applyHistory(),this._restoreCapturedCursor()),this}canUndo(){return this._historyIndex>0}canRedo(){return this._historyIndexthis._wrapSelection("**","**"),italic:()=>this._wrapSelection("*","*"),strikethrough:()=>this._wrapSelection("~~","~~"),underline:()=>this._wrapSelection("",""),code:()=>this._wrapSelection("`","`"),h1:()=>this._toggleLinePrefix("# "),h2:()=>this._toggleLinePrefix("## "),h3:()=>this._toggleLinePrefix("### "),quote:()=>this._toggleLinePrefix("> "),ul:()=>this._toggleLinePrefix("- "),ol:()=>this._toggleLinePrefix("1. "),indent:()=>this._handleTab(!1),outdent:()=>this._handleTab(!0),hr:()=>this._insertBlock("\n---\n"),link:()=>this._insertLink(),image:()=>this._insertImage(),table:()=>this._insertTable(),undo:()=>this.undo(),redo:()=>this.redo(),edit:()=>this.setMode("edit"),split:()=>this.setMode("split"),preview:()=>this.setMode("preview"),fullscreen:()=>this.toggleFullscreen(),zen:()=>this.toggleZen(),wordwrap:()=>this.toggleWordWrap(),formatTable:()=>this._formatTable()}[e];if(n)return n.apply(this,t),this;if(this._customActions&&"function"==typeof this._customActions[e])try{this._customActions[e].apply(this,t)}catch(e){}return this}setMode(e){if(!mt.includes(e)||e===this._mode)return this;const t=this.textarea.scrollTop,n=this.previewPane.scrollTop;if(this._mode=e,this.bodyEl.className=`me-body me-mode-${e}`,this._updateModeButtons(),"edit"!==e&&(this._render(),this._buildOutline()),this.textarea.scrollTop=t,this.previewPane.scrollTop=n,this._emit("modeChange",e),this._announce(`${this.t(e)||e} mode`),"function"==typeof this.config.onModeChange)try{this.config.onModeChange(e,this)}catch(e){}return this}getMode(){return this._mode}_updateModeButtons(){const e="preview"===this._mode,t=this.config.readOnly;this.toolbarEl.querySelectorAll(".me-btn").forEach(n=>{const r=n,i=r.dataset.mode,o=r.dataset.action;if(i)return r.classList.toggle("me-active",i===this._mode),void(r.disabled=!1);r.disabled="fullscreen"!==o&&(t||!!e)&&!("undo"===o||"redo"===o)})}toggleFullscreen(){this._fullscreen=!this._fullscreen,this.el.classList.toggle("me-fullscreen",this._fullscreen);const e=this.toolbarEl.querySelector(".me-btn-fullscreen");if(e&&(e.title=this._fullscreen?this.t("fullscreenExit")||"退出全屏":this.t("fullscreen")||"全屏"),this._emit("fullscreen",this._fullscreen),"function"==typeof this.config.onFullscreen)try{this.config.onFullscreen(this._fullscreen,this)}catch(e){}return this}isFullscreen(){return this._fullscreen}exitFullscreen(){return this._fullscreen&&this.toggleFullscreen(),this}toggleZen(){return this._setZen(!this._zenMode),this}_setZen(e){this._zenMode=!!e,this.el&&(this.el.classList.toggle("me-zen",this._zenMode),this._applyZenWidth(),this._zenMode&&this.toolbarEl?(this._zenMouseHandler||(this._zenMouseHandler=e=>{this.toolbarEl.style.opacity=e.clientY<40?"1":"0",this.toolbarEl.style.pointerEvents=e.clientY<40?"auto":"none"},document.addEventListener("mousemove",this._zenMouseHandler)),this.toolbarEl.style.transition="opacity 0.2s",this.toolbarEl.style.opacity="0",this.toolbarEl.style.pointerEvents="none",this.statusEl&&(this.statusEl.style.display="none")):(this._zenMouseHandler&&(document.removeEventListener("mousemove",this._zenMouseHandler),this._zenMouseHandler=null),this.toolbarEl&&(this.toolbarEl.style.opacity="",this.toolbarEl.style.pointerEvents="",this.toolbarEl.style.transition=""),this.statusEl&&(this.statusEl.style.display="")),this._emit("zenChange",this._zenMode))}isZen(){return 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