pines/elements/monaco-editor.html

<div x-data="{
        monacoContent: '',
        monacoLanguage: 'html',
        monacoPlaceholder: true,
        monacoPlaceholderText: 'Start typing here',
        monacoLoader: true,
        monacoFontSize: '15px',
        monacoId: $id('monaco-editor'),
        monacoEditor(editor){
            editor.onDidChangeModelContent((e) => {
                this.monacoContent = editor.getValue();
                this.updatePlaceholder(editor.getValue());
            });

            editor.onDidBlurEditorWidget(() => {
                this.updatePlaceholder(editor.getValue());
            });

            editor.onDidFocusEditorWidget(() => {
                this.updatePlaceholder(editor.getValue());
            });
        },
        updatePlaceholder: function(value) {
            if (value == '') {
                this.monacoPlaceholder = true;
                return;
            }
            this.monacoPlaceholder = false;
        },
        monacoEditorFocus(){
            document.getElementById(this.monacoId).dispatchEvent(new CustomEvent('monaco-editor-focused', { monacoId: this.monacoId }));
        },
        monacoEditorAddLoaderScriptToHead() {
            script = document.createElement('script');
            script.src = 'https://cdnjs.cloudflare.com/ajax/libs/monaco-editor/0.39.0/min/vs/loader.min.js';
            document.head.appendChild(script);
        }
    }"
    x-init="
            
        if(typeof _amdLoaderGlobal == 'undefined'){
            monacoEditorAddLoaderScriptToHead();
        }

        monacoLoaderInterval = setInterval(function(){
            if(typeof _amdLoaderGlobal !== 'undefined'){

                // Based on https://jsfiddle.net/developit/bwgkr6uq/ which works without needing service worker. Provided by loader.min.js.
                require.config({ paths: { 'vs': 'https://cdnjs.cloudflare.com/ajax/libs/monaco-editor/0.39.0/min/vs' }});
                let proxy = URL.createObjectURL(new Blob([` self.MonacoEnvironment = { baseUrl: 'https://cdnjs.cloudflare.com/ajax/libs/monaco-editor/0.39.0/min' }; importScripts('https://cdnjs.cloudflare.com/ajax/libs/monaco-editor/0.39.0/min/vs/base/worker/workerMain.min.js');`], { type: 'text/javascript' }));
                window.MonacoEnvironment = { getWorkerUrl: () => proxy };

                require(['vs/editor/editor.main'], function() {
                    
                    monacoTheme = {'base':'vs-dark','inherit':true,'rules':[{'background':'0C1021','token':''},{'foreground':'aeaeae','token':'comment'},{'foreground':'d8fa3c','token':'constant'},{'foreground':'ff6400','token':'entity'},{'foreground':'fbde2d','token':'keyword'},{'foreground':'fbde2d','token':'storage'},{'foreground':'61ce3c','token':'string'},{'foreground':'61ce3c','token':'meta.verbatim'},{'foreground':'8da6ce','token':'support'},{'foreground':'ab2a1d','fontStyle':'italic','token':'invalid.deprecated'},{'foreground':'f8f8f8','background':'9d1e15','token':'invalid.illegal'},{'foreground':'ff6400','fontStyle':'italic','token':'entity.other.inherited-class'},{'foreground':'ff6400','token':'string constant.other.placeholder'},{'foreground':'becde6','token':'meta.function-call.py'},{'foreground':'7f90aa','token':'meta.tag'},{'foreground':'7f90aa','token':'meta.tag entity'},{'foreground':'ffffff','token':'entity.name.section'},{'foreground':'d5e0f3','token':'keyword.type.variant'},{'foreground':'f8f8f8','token':'source.ocaml keyword.operator.symbol'},{'foreground':'8da6ce','token':'source.ocaml keyword.operator.symbol.infix'},{'foreground':'8da6ce','token':'source.ocaml keyword.operator.symbol.prefix'},{'fontStyle':'underline','token':'source.ocaml keyword.operator.symbol.infix.floating-point'},{'fontStyle':'underline','token':'source.ocaml keyword.operator.symbol.prefix.floating-point'},{'fontStyle':'underline','token':'source.ocaml constant.numeric.floating-point'},{'background':'ffffff08','token':'text.tex.latex meta.function.environment'},{'background':'7a96fa08','token':'text.tex.latex meta.function.environment meta.function.environment'},{'foreground':'fbde2d','token':'text.tex.latex support.function'},{'foreground':'ffffff','token':'source.plist string.unquoted'},{'foreground':'ffffff','token':'source.plist keyword.operator'}],'colors':{'editor.foreground':'#F8F8F8','editor.background':'#0C1021','editor.selectionBackground':'#253B76','editor.lineHighlightBackground':'#FFFFFF0F','editorCursor.foreground':'#FFFFFFA6','editorWhitespace.foreground':'#FFFFFF40'}};
                    monaco.editor.defineTheme('blackboard', monacoTheme);
                    document.getElementById(monacoId).editor = monaco.editor.create($refs.monacoEditorElement, {
                        value: monacoContent,
                        theme: 'blackboard',
                        fontSize: monacoFontSize,
                        lineNumbersMinChars: 3,
                        automaticLayout: true,
                        language: monacoLanguage
                    });
                    monacoEditor(document.getElementById(monacoId).editor);
                    document.getElementById(monacoId).addEventListener('monaco-editor-focused', function(event){
                        document.getElementById(monacoId).editor.focus();
                    });
                    updatePlaceholder(document.getElementById(monacoId).editor.getValue());
                    
                });

                clearInterval(monacoLoaderInterval);
                monacoLoader = false;
            }
        }, 5);
    " :id="monacoId" class="flex flex-col items-center relative justify-start w-full bg-[#0C1021] min-h-[250px] pt-3 h-100">
    <div x-show="monacoLoader" class="absolute inset-0 z-20 flex items-center justify-center w-full h-full duration-1000 ease-out">
        <svg class="w-4 h-4 text-gray-400 animate-spin" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24"><circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle><path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path></svg>
    </div>

    <div x-show="!monacoLoader" class="relative z-10 w-full h-full">
        <div x-ref="monacoEditorElement" class="w-full h-full text-lg"></div>
        <div x-ref="monacoPlaceholderElement" x-show="monacoPlaceholder" @click="monacoEditorFocus()" :style="'font-size: ' + monacoFontSize" class="w-full text-sm font-mono absolute z-50 text-gray-500 ml-14 -translate-x-0.5 mt-0.5 left-0 top-0" x-text="monacoPlaceholderText"></div>
    </div>
</div>