GIF89a=( õ' 7IAXKgNgYvYx\%wh…hŽth%ˆs%—x¨}9®Œ©€&©‰%¶†(¹–.¹5·œD¹&Çš)ÇŸ5ǘ;Í£*È¡&Õ²)ׯ7×µ<Ñ»4ï°3ø‘HÖ§KͯT÷¨Yÿšqÿ»qÿÔFØ !ù ' !ÿ NETSCAPE2.0 , =( þÀ“pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§gª«ªE¯°¨¬ª±²Œ¹º¹E¾­”´ÂB¶¯ §Åȸ»ÑD¾¿Á•ÄÅ®° ÝH¾ÒLÀÆDÙ«D¶BÝïðÀ¾DÑÑÔTÌÍíH òGö¨A RÎڐ |¥ ٭&ºìE8œ¹kGÔAÞpx­a¶­ã R2XB®åE8I€Õ6Xî:vT)äžþÀq¦è³¥ì仕F~%xñ  4#ZÔ‰O|-4Bs‘X:= QÉ œš lºÒyXJŠGȦ|s hÏíK–3l7·B|¥$'7Jީܪ‰‡àá”Dæn=Pƒ ¤Òëí‰`䌨ljóá¯Éüv>á–Á¼5 ½.69ûϸd«­ºÀûnlv©‹ªîf{¬ÜãPbŸ  l5‘Ž¯pß ´ ˜3aÅùäI«O’ý·‘áÞ‡˜¾Æ‚ÙÏiÇÿ‹Àƒ #öó)pâš Þ½ ‘Ý{ó)vmÞü%D~ 6f s}ŃƒDØW Eþ`‡þ À…L8xá†ç˜{)x`X/> Ì}mø‚–RØ‘*|`D=‚Ø_ ^ð5 !_…'aä“OÚ—7âcð`D”Cx`ÝÂ¥ä‹éY¹—F¼¤¥Š?¡Õ™ n@`} lď’ÄÉ@4>ñd œ à‘vÒxNÃ×™@žd=ˆgsžG±æ ´²æud &p8Qñ)ˆ«lXD©øÜéAžHìySun jª×k*D¤LH] †¦§C™Jä–´Xb~ʪwStŽ6K,°£qÁœ:9ت:¨þªl¨@¡`‚ûÚ ».Û¬¯t‹ÆSÉ[:°=Š‹„‘Nåû”Ìî{¿ÂA ‡Rà›ÀÙ6úë°Ÿð0Ä_ ½;ÃϱîÉì^ÇÛÇ#Ëë¼ôº!±Ä˜íUîÅÇ;0L1óÁµö«p% AÀºU̬ݵ¼á%霼€‡¯Á~`ÏG¯»À× ­²± =4ªnpð3¾¤³¯­ü¾¦îuÙuµÙ®|%2ÊIÿür¦#0·ÔJ``8È@S@5ê¢ ö×Þ^`8EÜ]ý.뜃Âç 7 ú ȉÞj œ½Dç zý¸iþœÑÙûÄë!ˆÞÀl§Ïw‹*DçI€nEX¯¬¼ &A¬Go¼QföõFç°¯;é¦÷îŽêJ°îúôF5¡ÌQ|îúöXªæ»TÁÏyñêï]ê² o óÎC=öõ›ÒÓPB@ D×½œä(>èCÂxŽ`±«Ÿ–JЀ»Û á¤±p+eE0`ëŽ`A Ú/NE€Ø†À9‚@¤à H½7”à‡%B‰`Àl*ƒó‘–‡8 2ñ%¸ —€:Ù1Á‰E¸àux%nP1ð!‘ðC)¾P81lÑɸF#ˆ€{´âé°ÈB„0>±û °b¡Š´±O‚3È–Ù()yRpbµ¨E.Z‘D8ÊH@% òŒx+%Ù˜Æcü »¸˜fõ¬b·d`Fê™8èXH"ÉÈ-±|1Ô6iI, 2““¬$+](A*jÐ QTÂo‰.ÛU슬Œã„Ž`¯SN¡–¶Äåyše¯ª’­¬‚´b¦Éož œ)åyâ@Ì®3 ÎtT̉°&Ø+žLÀf"Ø-|žçÔ>‡Ðv¦Ðžì\‚ Q1)Ž@Žh#aP72”ˆ™¨$‚ !ù " , =( …7IAXG]KgNgYvYxR"k\%w]'}hŽth%ˆg+ˆs%—r.—m3šx3˜x¨}9®€&©€+¨‡7§‰%¶†(¹–.¹œD¹&ǘ;Í•&ײ)×»4ïÌ6ò§KÍ þ@‘pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g «¬ E ±± ¨­¶°ººE Á´”·®C¬²§Ç¶Œ»ÓDÃÕƷ¯Ê±H½ºM×ÁGÚ¬D¶BËÁ½î½DÓôTÏÛßîG»ôõC×CÌ l&âž:'òtU³6ɹ#·Ø)€'Ü.6±&ëÍÈ» K(8p0N?!æ2"ÛˆNIJX>R¼ÐO‚M '¡¨2¸*Ÿþ>#n↠å@‚<[:¡Iïf’ ¤TÚ˘CdbÜÙ“[«ŽEú5MBo¤×@€`@„€Êt W-3 ¶Ÿ¡BíêäjIÝ…Eò9[T…$íêﯧ„…•s»Óȳ¹€ÅÚdc®UUρ#±Ùïldj?´í¼²`\ŽÁðÞu|3'ÖŒ]ë6 ¶S#²‡˜FKLÈ *N E´‘áäŠ$˜›eÄYD„ºq«.è촁ƒs \-ÔjA 9²õ÷å- üúM[Âx(ís÷ì®x€|í¡Ù’p¦‚ ŽkÛTÇDpE@WÜ ²Ç]kŠ1¨ þ€·Yb ÓÁ‰l°*n0 ç™—žzBdОu¾7ĉBl€â‰-ºx~|UåU‰  h*Hœ|e"#"?vpÄiŠe6^ˆ„+qâŠm8 #VÇá ‘å–ÄV„œ|Šè•m"сœn|@›U¶ÆΞ—Špb¥G¨ED”€±Úê2FÌIç? >Éxå Œ± ¡¤„%‘žjŸ‘ꄯ<Ìaà9ijÐ2˜D¦È&›†Z`‚å]wþ¼Â:ç6àB¤7eFJ|õÒ§Õ,¨äàFÇ®cS·Ê¶+B°,‘Þ˜ºNûãØ>PADÌHD¹æž«ÄÀnÌ¥}­#Ë’ë QÀÉSÌÂÇ2ÌXÀ{æk²lQÁ2«ÊðÀ¯w|2Í h‹ÄÂG€,m¾¶ë3ÐÙ6-´ÅE¬L°ÆIij*K½ÀÇqï`DwVÍQXœÚÔpeœ±¬Ñ q˜§Tœ½µƒ°Œìu Â<¶aØ*At¯lmEØ ü ôÛN[P1ÔÛ¦­±$ÜÆ@`ùåDpy¶yXvCAyåB`ŽD¶ 0QwG#¯ æš[^Äþ $ÀÓÝǦ{„L™[±úKÄgÌ;ï£S~¹ìGX.ôgoT.»åˆ°ùŸûù¡?1zö¦Ÿž:ÅgÁ|ìL¹ „®£œŠ‚à0œ]PÁ^p F<"•ç?!,ñ‡N4—…PÄ Á„ö¨Û:Tè@hÀ‹%táÿ:ø-žI<`þ‹p I….)^ 40D#p@ƒj4–؀:²‰1Øâr˜¼F2oW¼#Z†;$Q q” ‘ ÂK¦ñNl#29 !’F@¥Bh·ᏀL!—XFóLH‘Kh¤.«hE&JòG¨¥<™WN!€ÑÙÚˆY„@†>Œž19J" 2,/ &.GXB%ÌRÈ9B6¹W]’î×ÔW¥’IÎ$ ñ‹ÓŒE8YÆ ¼³™ñA5“à®Q.aŸB€&Ø©³ JÁ—! ¦t)K%tœ-¦JF bòNMxLôþ)ÐR¸Ð™‘ èÝ6‘O!THÌ„HÛ ‰ !ù ) , =( …AXKgNgYvYxR"k\%wh…hŽh%ˆg+ˆs%—r.—x3˜x¨}9®€&©€+¨Œ,©‡7§‰%¶†(¹–.¹5·&Çš)ǘ;Í•&×£*Ȳ)ׯ7×»4ï°3øÌ6ò‘HÖ§KÍ»Hó¯T÷¨Yÿ»qÿÇhÿ þÀ”pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g ª« E$±²¨ª­ · °²½$E$ÂÕ««D· Í ¿¦Ç¶¸ÌŒ¾³CÃÅÆ E ééH½MÛÂGâªD­ çBêêϾD²ÒaÀà€Š1r­ðÓ¤ ÔožzU!L˜C'¾yW½UGtäÇïÙllê0×àÂuGþ)AÀs[þ·xì ÁxO%ƒûX2ó—  P£n›R/¡ÑšHše+êDm?# —‘Ç£6¡8íJ¡ŸâDiäªM¥Ö„ôj“¬¹£5oQ7°- <‡ *´lãÓŒ2r/a!l)dÈ A™ÈE¢ôÔ͆…ð ;Ö˜c ¡%ß‚’Ùˆâ¸b½—pe~C"BíëÚHïeF2§æŠ8qb t_`urŠeü wÅu3êæPv§h•"ß`íÍxçLĹÜÖ3á  ~Öº“®›¸ÏMDfJÙ °„ÛµáWõ%§œ‚à©–‚X Ó؁)@®Ñ›Eþ´wëuÅSxb8y\mÖzœ¥§ZbºE—ÂLªÌw!y(>¡™wú=Ç|ÅÝs¢d €CÁW)HÜcC$€L Ä7„r.á\{)@ð` @ äXÈ$PD” `šaG:§æˆOˆ72EÐamn]ù"ŒcÊxÑŒ° &dR8`g«iÙŸLR!¦P …d’ä¡“¦ðÎTƒ¦ià|À _ ¥ Qi#¦Šg›Æ ›noMµ ›V ã£)p ç£ÎW…š=Âeªk§†j„ ´®1ß²sÉxéW«jšl|0¯B0Û, \jÛ´›6±¬¶C ÛíWþï|ëÙ‹¸ñzĸV {ì;Ýñn¼òVˆm³I¼³.Ðã¤PN¥ ²µ¼„µCã+¹ÍByî£Ñ¾HŸ›ëê 7ìYÆFTk¨SaoaY$Dµœìï¿Ã29RÈkt Çïfñ ÇÒ:ÀÐSp¹3ÇI¨â¥DZÄ ü9Ïýögñ½­uÔ*3)O‘˜Ö[_hv ,àî×Et Ÿé¶BH€ Õ[ü±64M@ÔSÌM7dÐl5-ÄÙU܍´©zߌ3Ô€3ž„ „ ¶ÛPô½5×g› êÚ˜kN„Ý…0Îj4€Ìë°“#{þÕ3S2çKÜ'ợlø¼Ú2K{° {Û¶?žm𸧠ËI¼nEò='êüóºè^üæÃ_Û=°óž‚ì#Oý¿Í'¡½áo..ÏYìnüñCœO±Áa¿¢Kô½o,üÄËbö²çºíï{ËC Ú— "”Ï{ËK ÍÒw„õ±Oz dÕ¨à:$ ƒô—«v»] A#ð «€¿šéz)Rx׿ˆ¥‚d``èw-îyÏf×K!ð€þ­Ð|ìPľ„=Ì`ý(f” 'Pa ¥ÐBJa%Ðâf§„%Š¡}FàáÝ×6>ÉäŠG"éŽè=ø!oŠ°^FP¼Ø©Q„ÀCÙÁ`(Ž\ÄÝ® ©Â$<n@dÄ E#ììUÒI! ‚#lù‹`k¦ÐÇ'Rró’ZýNBÈMF Í[¤+‹ðɈ-áwj¨¥þ8¾rá ,VÂh„"|½œ=×G_¦Ñ™EØ 0i*%̲˜Æda0mV‚k¾)›;„&6 p>ÓjK “¦Ç# âDÂ:ûc?:R Ó¬fÞéI-Ì“•Ã<ä=™Ï7˜3œ¨˜c2ŒW ,ˆ”8(T™P‰F¡Jhç"‚ ; 403WebShell
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Current File : /home4/diablo/dev/wp-admin/js/code-editor.js
/**
 * @output wp-admin/js/code-editor.js
 */

/* global console */

/* eslint-env es2020 */

if ( 'undefined' === typeof window.wp ) {
	/**
	 * @namespace wp
	 */
	window.wp = {};
}
if ( 'undefined' === typeof window.wp.codeEditor ) {
	/**
	 * @namespace wp.codeEditor
	 */
	window.wp.codeEditor = {};
}

/**
 * @typedef {object} CodeMirrorState
 * @property {boolean} [completionActive] - Whether completion is active.
 * @property {boolean} [focused] - Whether the editor is focused.
 */

/**
 * @typedef {import('codemirror').EditorFromTextArea & {
 *   options: import('codemirror').EditorConfiguration,
 *   performLint?: () => void,
 *   showHint?: (options: import('codemirror').ShowHintOptions) => void,
 *   state: CodeMirrorState
 * }} CodeMirrorEditor
 */

/**
 * @typedef {object} LintAnnotation
 * @property {string} message - Message.
 * @property {'error'|'warning'} severity - Severity.
 * @property {import('codemirror').Position} from - From position.
 * @property {import('codemirror').Position} to - To position.
 */

/**
 * @typedef {object} CodeMirrorTokenState
 * @property {object} [htmlState] - HTML state.
 * @property {string} [htmlState.tagName] - Tag name.
 * @property {CodeMirrorTokenState} [curState] - Current state.
 */

/**
 * @typedef {import('codemirror').EditorConfiguration & {
 *   lint?: boolean | CombinedLintOptions,
 *   autoCloseBrackets?: boolean,
 *   matchBrackets?: boolean,
 *   continueComments?: boolean,
 *   styleActiveLine?: boolean
 * }} CodeMirrorSettings
 */

/**
 * @typedef {object} CSSLintRules
 * @property {boolean} [errors] - Errors.
 * @property {boolean} [box-model] - Box model rules.
 * @property {boolean} [display-property-grouping] - Display property grouping rules.
 * @property {boolean} [duplicate-properties] - Duplicate properties rules.
 * @property {boolean} [known-properties] - Known properties rules.
 * @property {boolean} [outline-none] - Outline none rules.
 */

/**
 * @typedef {object} JSHintRules
 * @property {number} [esversion] - ECMAScript version.
 * @property {boolean} [module] - Whether to use modules.
 * @property {boolean} [boss] - Whether to allow assignments in control expressions.
 * @property {boolean} [curly] - Whether to require curly braces.
 * @property {boolean} [eqeqeq] - Whether to require === and !==.
 * @property {boolean} [eqnull] - Whether to allow == null.
 * @property {boolean} [expr] - Whether to allow expressions.
 * @property {boolean} [immed] - Whether to require immediate function invocation.
 * @property {boolean} [noarg] - Whether to prohibit arguments.caller/callee.
 * @property {boolean} [nonbsp] - Whether to prohibit non-breaking spaces.
 * @property {string} [quotmark] - Quote mark preference.
 * @property {boolean} [undef] - Whether to prohibit undefined variables.
 * @property {boolean} [unused] - Whether to prohibit unused variables.
 * @property {boolean} [browser] - Whether to enable browser globals.
 * @property {Record<string, boolean>} [globals] - Global variables.
 */

/**
 * @typedef {object} HTMLHintRules
 * @property {boolean} [tagname-lowercase] - Tag name lowercase rules.
 * @property {boolean} [attr-lowercase] - Attribute lowercase rules.
 * @property {boolean} [attr-value-double-quotes] - Attribute value double quotes rules.
 * @property {boolean} [doctype-first] - Doctype first rules.
 * @property {boolean} [tag-pair] - Tag pair rules.
 * @property {boolean} [spec-char-escape] - Spec char escape rules.
 * @property {boolean} [id-unique] - ID unique rules.
 * @property {boolean} [src-not-empty] - Src not empty rules.
 * @property {boolean} [attr-no-duplication] - Attribute no duplication rules.
 * @property {boolean} [alt-require] - Alt require rules.
 * @property {string} [space-tab-mixed-disabled] - Space tab mixed disabled rules.
 * @property {boolean} [attr-unsafe-chars] - Attribute unsafe chars rules.
 * @property {JSHintRules} [jshint] - JSHint rules.
 * @property {CSSLintRules} [csslint] - CSSLint rules.
 */

/**
 * Settings for the code editor.
 *
 * @typedef {object} CodeEditorSettings
 *
 * @property {CodeMirrorSettings} [codemirror] - CodeMirror settings.
 * @property {CSSLintRules} [csslint] - CSSLint rules.
 * @property {JSHintRules} [jshint] - JSHint rules.
 * @property {HTMLHintRules} [htmlhint] - HTMLHint rules.
 *
 * @property {(codemirror: CodeMirrorEditor, event: KeyboardEvent|JQuery.KeyDownEvent) => void} [onTabNext] - Callback to handle tabbing to the next tabbable element.
 * @property {(codemirror: CodeMirrorEditor, event: KeyboardEvent|JQuery.KeyDownEvent) => void} [onTabPrevious] - Callback to handle tabbing to the previous tabbable element.
 * @property {(errorAnnotations: LintAnnotation[], annotations: LintAnnotation[], annotationsSorted: LintAnnotation[], cm: CodeMirrorEditor) => void} [onChangeLintingErrors] - Callback for when the linting errors have changed.
 * @property {(errorAnnotations: LintAnnotation[], editor: CodeMirrorEditor) => void} [onUpdateErrorNotice] - Callback for when error notice should be displayed.
 */

/**
 * @typedef {import('codemirror/addon/lint/lint').LintStateOptions<Record<string, unknown>> & JSHintRules & CSSLintRules & { rules?: HTMLHintRules }} CombinedLintOptions
 */

/**
 * @typedef {object} CodeEditorInstance
 * @property {CodeEditorSettings} settings - The code editor settings.
 * @property {CodeMirrorEditor} codemirror - The CodeMirror instance.
 * @property {() => void} updateErrorNotice - Force update the error notice.
 */

/**
 * @typedef {object} WpCodeEditor
 * @property {CodeEditorSettings} defaultSettings - Default settings.
 * @property {(textarea: string|JQuery|Element, settings?: CodeEditorSettings) => CodeEditorInstance} initialize - Initialize.
 */

/**
 * @param {JQueryStatic} $ - jQuery.
 * @param {Object & {
 *   codeEditor: WpCodeEditor,
 *   CodeMirror: typeof import('codemirror'),
 * }} wp - WordPress namespace.
 */
( function( $, wp ) {
	'use strict';

	/**
	 * Default settings for code editor.
	 *
	 * @since 4.9.0
	 * @type {CodeEditorSettings}
	 */
	wp.codeEditor.defaultSettings = {
		codemirror: {},
		csslint: {},
		htmlhint: {},
		jshint: {},
		onTabNext: function() {},
		onTabPrevious: function() {},
		onChangeLintingErrors: function() {},
		onUpdateErrorNotice: function() {},
	};

	/**
	 * Configure linting.
	 *
	 * @param {CodeEditorSettings} settings - Code editor settings.
	 *
	 * @return {LintingController} Linting controller.
	 */
	function configureLinting( settings ) { // eslint-disable-line complexity
		/** @type {LintAnnotation[]} */
		let currentErrorAnnotations = [];

		/** @type {LintAnnotation[]} */
		let previouslyShownErrorAnnotations = [];

		/**
		 * Call the onUpdateErrorNotice if there are new errors to show.
		 *
		 * @param {import('codemirror').Editor} editor - Editor.
		 * @return {void}
		 */
		function updateErrorNotice( editor ) {
			if ( settings.onUpdateErrorNotice && ! _.isEqual( currentErrorAnnotations, previouslyShownErrorAnnotations ) ) {
				settings.onUpdateErrorNotice( currentErrorAnnotations, /** @type {CodeMirrorEditor} */ ( editor ) );
				previouslyShownErrorAnnotations = currentErrorAnnotations;
			}
		}

		/**
		 * Get lint options.
		 *
		 * @return {CombinedLintOptions|false} Lint options.
		 */
		function getLintOptions() { // eslint-disable-line complexity
			/** @type {CombinedLintOptions | boolean} */
			let options = settings.codemirror?.lint ?? false;

			if ( ! options ) {
				return false;
			}

			if ( true === options ) {
				options = {};
			} else if ( _.isObject( options ) ) {
				options = $.extend( {}, options );
			}
			const linterOptions = /** @type {CombinedLintOptions} */ ( options );

			// Configure JSHint.
			if ( 'javascript' === settings.codemirror?.mode && settings.jshint ) {
				$.extend( linterOptions, settings.jshint );
			}

			// Configure CSSLint.
			if ( 'css' === settings.codemirror?.mode && settings.csslint ) {
				$.extend( linterOptions, settings.csslint );
			}

			// Configure HTMLHint.
			if ( 'htmlmixed' === settings.codemirror?.mode && settings.htmlhint ) {
				linterOptions.rules = $.extend( {}, settings.htmlhint );

				if ( settings.jshint && linterOptions.rules ) {
					linterOptions.rules.jshint = settings.jshint;
				}
				if ( settings.csslint && linterOptions.rules ) {
					linterOptions.rules.csslint = settings.csslint;
				}
			}

			// Wrap the onUpdateLinting CodeMirror event to route to onChangeLintingErrors and onUpdateErrorNotice.
			linterOptions.onUpdateLinting = (function( onUpdateLintingOverridden ) {
				/**
				 * @param {LintAnnotation[]} annotations - Annotations.
				 * @param {LintAnnotation[]} annotationsSorted - Sorted annotations.
				 * @param {CodeMirrorEditor} cm - Editor.
				 */
				return function( annotations, annotationsSorted, cm ) {
					const errorAnnotations = annotations.filter( function( annotation ) {
						return 'error' === annotation.severity;
					} );

					if ( onUpdateLintingOverridden ) {
						onUpdateLintingOverridden( annotations, annotationsSorted, cm );
					}

					// Skip if there are no changes to the errors.
					if ( _.isEqual( errorAnnotations, currentErrorAnnotations ) ) {
						return;
					}

					currentErrorAnnotations = errorAnnotations;

					if ( settings.onChangeLintingErrors ) {
						settings.onChangeLintingErrors( errorAnnotations, annotations, annotationsSorted, cm );
					}

					/*
					 * Update notifications when the editor is not focused to prevent error message
					 * from overwhelming the user during input, unless there are now no errors or there
					 * were previously errors shown. In these cases, update immediately so they can know
					 * that they fixed the errors.
					 */
					if ( ! cm.state.focused || 0 === currentErrorAnnotations.length || previouslyShownErrorAnnotations.length > 0 ) {
						updateErrorNotice( cm );
					}
				};
			})( linterOptions.onUpdateLinting );

			return linterOptions;
		}

		return {
			getLintOptions,
			/**
			 * @param {CodeMirrorEditor} editor - Editor instance.
			 * @return {void}
			 */
			init: function( editor ) {
				// Keep lint options populated.
				editor.on( 'optionChange', function( _cm, option ) {
					const gutterName = 'CodeMirror-lint-markers';
					if ( 'lint' !== ( /** @type {string} */ ( option ) ) ) {
						return;
					}
					const gutters = ( /** @type {string[]} */ ( editor.getOption( 'gutters' ) ) ) || [];
					const options = editor.getOption( 'lint' );
					if ( true === options ) {
						if ( ! _.contains( gutters, gutterName ) ) {
							editor.setOption( 'gutters', [ gutterName ].concat( gutters ) );
						}
						editor.setOption( 'lint', getLintOptions() ); // Expand to include linting options.
					} else if ( ! options ) {
						editor.setOption( 'gutters', _.without( gutters, gutterName ) );
					}

					// Force update on error notice to show or hide.
					if ( editor.getOption( 'lint' ) && editor.performLint ) {
						editor.performLint();
					} else {
						currentErrorAnnotations = [];
						updateErrorNotice( editor );
					}
				} );

				// Update error notice when leaving the editor.
				editor.on( 'blur', updateErrorNotice );

				// Work around hint selection with mouse causing focus to leave editor.
				editor.on( 'startCompletion', function() {
					editor.off( 'blur', updateErrorNotice );
				} );
				editor.on( 'endCompletion', function() {
					const editorRefocusWait = 500;
					editor.on( 'blur', updateErrorNotice );

					// Wait for editor to possibly get re-focused after selection.
					_.delay( function() {
						if ( ! editor.state.focused ) {
							updateErrorNotice( editor );
						}
					}, editorRefocusWait );
				} );

				/*
				 * Make sure setting validities are set if the user tries to click Publish
				 * while an autocomplete dropdown is still open. The Customizer will block
				 * saving when a setting has an error notifications on it. This is only
				 * necessary for mouse interactions because keyboards will have already
				 * blurred the field and cause onUpdateErrorNotice to have already been
				 * called.
				 */
				$( document.body ).on( 'mousedown', function( /** @type {JQuery.MouseDownEvent} */ event ) {
					if (
						editor.state.focused &&
						! editor.getWrapperElement().contains( event.target ) &&
						! event.target.classList.contains( 'CodeMirror-hint' )
					) {
						updateErrorNotice( editor );
					}
				} );
			},
			/**
			 * @param {CodeMirrorEditor} editor - Editor instance.
			 * @return {void}
			 */
			updateErrorNotice,
		};
	}

	/**
	 * Configure tabbing.
	 *
	 * @param {CodeMirrorEditor} codemirror - Editor.
	 * @param {CodeEditorSettings} settings - Code editor settings.
	 *
	 * @return {void}
	 */
	function configureTabbing( codemirror, settings ) {
		const $textarea = $( codemirror.getTextArea() );

		codemirror.on( 'blur', function() {
			$textarea.data( 'next-tab-blurs', false );
		});
		codemirror.on( 'keydown', function onKeydown( _editor, event ) {
			// Take note of the ESC keypress so that the next TAB can focus outside the editor.
			if ( 'Escape' === event.key ) {
				$textarea.data( 'next-tab-blurs', true );
				return;
			}

			// Short-circuit if tab key is not being pressed or the tab key press should move focus.
			if ( 'Tab' !== event.key || ! $textarea.data( 'next-tab-blurs' ) ) {
				return;
			}

			// Focus on previous or next focusable item.
			if ( event.shiftKey && settings.onTabPrevious ) {
				settings.onTabPrevious( codemirror, event );
			} else if ( ! event.shiftKey && settings.onTabNext ) {
				settings.onTabNext( codemirror, event );
			}

			// Reset tab state.
			$textarea.data( 'next-tab-blurs', false );

			// Prevent tab character from being added.
			event.preventDefault();
		});
	}

	/**
	 * @typedef {object} LintingController
	 * @property {() => CombinedLintOptions|false} getLintOptions - Get lint options.
	 * @property {(editor: CodeMirrorEditor) => void} init - Initialize.
	 * @property {(editor: import('codemirror').Editor) => void} updateErrorNotice - Update error notice.
	 */

	/**
	 * Initialize Code Editor (CodeMirror) for an existing textarea.
	 *
	 * @since 4.9.0
	 *
	 * @param {string|JQuery<HTMLElement>|HTMLElement} textarea - The HTML id, jQuery object, or DOM Element for the textarea that is used for the editor.
	 * @param {CodeEditorSettings}    [settings] - Settings to override defaults.
	 *
	 * @return {CodeEditorInstance} Instance.
	 */
	wp.codeEditor.initialize = function initialize( textarea, settings ) {
		if ( document.readyState === 'loading' ) {
			console.warn( 'wp.codeEditor.initialize() ran too early. Invoke this function in a `DOMContentLoaded` event listener.' );
		}

		let $textarea;
		if ( 'string' === typeof textarea ) {
			$textarea = $( '#' + textarea );
		} else {
			$textarea = $( textarea );
		}

		/** @type {CodeEditorSettings} */
		const instanceSettings = $.extend( true, {}, wp.codeEditor.defaultSettings, settings );

		const lintingController = configureLinting( instanceSettings );
		if ( instanceSettings.codemirror ) {
			instanceSettings.codemirror.lint = lintingController.getLintOptions();
		}

		const codemirror = /** @type {CodeMirrorEditor} */ ( wp.CodeMirror.fromTextArea( $textarea[0], instanceSettings.codemirror ) );

		lintingController.init( codemirror );

		/** @type {CodeEditorInstance} */
		const instance = {
			settings: instanceSettings,
			codemirror,
			updateErrorNotice: function() {
				lintingController.updateErrorNotice( codemirror );
			},
		};

		if ( codemirror.showHint ) {
			codemirror.on( 'inputRead', function( _editor, change ) {
				// Only trigger autocompletion for typed input or IME composition.
				if ( ! change.origin || ( '+input' !== change.origin && ! change.origin.startsWith( '*compose' ) ) ) {
					return;
				}

				// Only trigger autocompletion for single-character inputs.
				// The text property is an array of strings, one for each line.
				// We check that there is only one line and that line has only one character.
				if ( 1 !== change.text.length || 1 !== change.text[0].length ) {
					return;
				}

				const char = change.text[0];
				const isAlphaKey = /^[a-zA-Z]$/.test( char );
				if ( codemirror.state.completionActive && isAlphaKey ) {
					return;
				}

				// Prevent autocompletion in string literals or comments.
				const token = /** @type {import('codemirror').Token & { state: CodeMirrorTokenState }} */ ( codemirror.getTokenAt( codemirror.getCursor() ) );
				if ( 'string' === token.type || 'comment' === token.type ) {
					return;
				}

				const innerMode = wp.CodeMirror.innerMode( codemirror.getMode(), token.state ).mode.name;
				const doc = codemirror.getDoc();
				const lineBeforeCursor = doc.getLine( doc.getCursor().line ).slice( 0, doc.getCursor().ch );
				let shouldAutocomplete = false;
				if ( 'html' === innerMode || 'xml' === innerMode ) {
					shouldAutocomplete = (
						'<' === char ||
						( '/' === char && 'tag' === token.type ) ||
						( isAlphaKey && 'tag' === token.type ) ||
						( isAlphaKey && 'attribute' === token.type ) ||
						( '=' === char && !! (
							token.state.htmlState?.tagName ||
							token.state.curState?.htmlState?.tagName
						) )
					);
				} else if ( 'css' === innerMode ) {
					shouldAutocomplete =
						isAlphaKey ||
						':' === char ||
						( ' ' === char && /:\s+$/.test( lineBeforeCursor ) );
				} else if ( 'javascript' === innerMode ) {
					shouldAutocomplete = isAlphaKey || '.' === char;
				} else if ( 'clike' === innerMode && 'php' === codemirror.options.mode ) {
					shouldAutocomplete = isAlphaKey && ( 'keyword' === token.type || 'variable' === token.type );
				}
				if ( shouldAutocomplete ) {
					codemirror.showHint( { completeSingle: false } );
				}
			} );
		}

		// Facilitate tabbing out of the editor.
		configureTabbing( codemirror, instanceSettings );

		return instance;
	};

})( jQuery, window.wp );

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