calc-monaco-editor/src/main/html/index.html at c7b89ea68ccf3b375e6710fc382fc91d8eda1555 · Strumenta/calc-monaco-editor · GitHub

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<!DOCTYPE html>
<html>
<head>
	<title>Calc Editor</title>
	<meta http-equiv="X-UA-Compatible" content="IE=edge" />
	<meta http-equiv="Content-Type" content="text/html;charset=utf-8" >
	<link rel="stylesheet" href="css/style.css">
</head>
<body>

<h2>Calc Editor</h2>
<div>
	<button id="run">
		Run
	</button>
</div>
<div id="modal">
</div>

<div id="container" style="width:800px;height:600px;border:1px solid grey"></div>
<div class="output">
	<p id="output-value"> >> </p>
</div>

<script src="node_modules/monaco-editor/min/vs/loader.js"></script>
<script src="js/main.js"></script>

<script>
	require.config({ paths: { 'vs': 'node_modules/monaco-editor/min/vs' }});
	let editor;
	let result=[];
	let variables=[];
	require(['vs/editor/editor.main'], function() {
		monaco.languages.register({ id: 'calc' });

		monaco.languages.setTokensProvider('calc', new CalcTokensProvider.CalcTokensProvider());

		let literalFg = '3b8737';
		let idFg = '344482';
		let symbolsFg = '000000';
		let keywordFg = '7132a8';
		let errorFg = 'ff0000';

		monaco.editor.defineTheme('myCoolTheme', {
			base: 'vs',
			inherit: false,
			rules: [
				{ token: 'number_lit.calc',   foreground: literalFg },

				{ token: 'id.calc',           foreground: idFg,       fontStyle: 'italic' },

				{ token: 'lparen.calc',       foreground: symbolsFg },
				{ token: 'rparen.calc',       foreground: symbolsFg },

				{ token: 'equal.calc',        foreground: symbolsFg },
				{ token: 'minus.calc',        foreground: symbolsFg },
				{ token: 'plus.calc',         foreground: symbolsFg },
				{ token: 'div.calc',          foreground: symbolsFg },
				{ token: 'mul.calc',          foreground: symbolsFg },

				{ token: 'input_kw.calc',     foreground: keywordFg,  fontStyle: 'bold' },
				{ token: 'output_kw.calc',    foreground: keywordFg,  fontStyle: 'bold' },

				{ token: 'unrecognized.calc', foreground: errorFg }
			]
		});

		editor = monaco.editor.create(document.getElementById('container'), {
			value: [
				'input salary',
				'input nEmployees',
				'input revenues',
				'input otherExpenses',
				'input taxRate',
				'',
				'totalExpenses = salary * nEmployees + otherExpenses',
				'grossProfit = revenues - totalExpenses',
				'totalTaxes = grossProfit * (taxRate / 100)',
				'profit = profit - totalTaxes',
				'',
				'output totalTaxes',
				'output profit',
				''
			].join('\n'),
			language: 'calc',
			theme: 'myCoolTheme'
		});
		editor.onDidChangeModelContent(function (e) {
			let code = editor.getValue()
			let syntaxErrors = ParserFacade.validate(code);
			let monacoErrors = [];
			for (let e of syntaxErrors) {
				monacoErrors.push({
					startLineNumber: e.startLine,
					startColumn: e.startCol,
					endLineNumber: e.endLine,
					endColumn: e.endCol,
					message: e.message,
					severity: monaco.MarkerSeverity.Error
				});
			};
			window.syntaxErrors = syntaxErrors;
			let model = monaco.editor.getModels()[0];
			monaco.editor.setModelMarkers(model, "owner", monacoErrors);
		});

	});

	document.getElementById("run").addEventListener("click", ()=>{
		const code = editor.getValue();
		// get the inputs only and ask the user for the values
		variables = ParserFacade.getInputs(code);
		const modals = document.getElementById("modal")
		if(variables.length>0){
			let html=`<div id="modal">
							<div class="modal-content">`
			for (let i = 0; i < variables.length; i++) {
				html+=`
					<input type="text"" id="textInput-${variables[i].variable}" placeholder="Enter the ${variables[i].variable} value">
				`
			}
			html+=`<button id="saveButton">Save</button></div></div>`
			modals.innerHTML=html;
			document.getElementById("modal").style.display = "block";
		}
		else {
			// run the visitor giving it the input values to the class constructor
			result = ParserFacade.calculateExpression(code,variables);
			writeOutputToConsole(result);
		}

		const saveButton = document.getElementById('saveButton');

		saveButton.addEventListener('click', () => {
			// Get text from modal
			for (let i = 0; i < variables.length; i++) {
				const textInput = document.getElementById(`textInput-${variables[i].variable}`);
				const text = textInput.value;
				// Check if the inserted value is a number to prevent misbehavior
				if(isNaN(text)){
					writeErrorToConsole("Error: Assigning "+text+" to "+ variables[i].variable +" : is not a number");
					return;
				}
				variables[i].value=text
			}
			document.getElementById("modal").style.display = "none";
			// Call visitor to make calculations
			result = ParserFacade.calculateExpression(code,variables);
			writeOutputToConsole(result);

		});
	});

	function writeOutputToConsole(result){
		for (let i = 0; i <result.output.length ; i++) {
			let output = document.getElementById("output-value");
			output.innerHTML += "<b>"+result.output[i].variable+"</b>" + " = " + result.output[i].value+"<br>";
			output.innerHTML += ">> ";
		}
		for (let i = 0; i <result.errors.length ; i++) {
			let output = document.getElementById("output-value");
			output.innerHTML += '<span style="color:red">'+result.errors[i].message+"</span>"+"<br>";
			output.innerHTML += ">> ";
		}
	}

	function writeErrorToConsole(messsage){
		let output = document.getElementById("output-value");
		output.innerHTML += '<span style="color:red">'+messsage+"</span>"+"<br>";
		output.innerHTML += ">> ";
	}

</script>
</body>
</html>