fyp/index.html at master · ryanfuller/fyp · GitHub

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<!DOCTYPE html>
<html>
	<head>
		<title>fyp try</title>
		<style>
			body {
				margin: 0;
				overflow: hidden;
			}
			canvas {
				background: red;
				width: 100%;
				height: 100%;
			}
		</style>
	</head>
	<body>
		<div>
			 <label for="input_file">Specify a file:</label><br>
			 <input type="file" id="input_file">
		</div>
		<script src="three.js"></script>

		<!--<script src="screenrenderer.js"></script>-->
		<textarea id="content-target"></textarea>
		<div>
		 	<label>only accepts csv files that have the graph starting in the top most cell</label>
		 	<label>results will appear in console</label>
		</div>

		<script src="classes.js"></script>
		<script>

            document.getElementById('input_file').addEventListener('change', getFile)

			var inputManager = grapher.GetInputManager();

            function getFile(event) {
                const input = event.target
                if ('files' in input && input.files.length > 0) {//works with repeat changes to file importing
                    placeFileContent(document.getElementById('content-target'),input.files[0]);//uses only the first file if multiple are chosen
                }
            }

            function placeFileContent(target, file) {
                //readFileContent(file).then(content => {target.value = content}).catch(error => console.log(error));
                readFileContent(file).then(content => {inputManager.MakeNewBarGraph(content);target.value = content}).catch(error => console.log(error));

            }

            function readFileContent(file) {
                const reader = new FileReader()
                return new Promise((resolve, reject) => {
                    reader.onload = event => resolve(event.target.result);
                    reader.onerror = error => reject(error);
                    reader.readAsText(file);
                })
            }
		</script>
	</body>
</html>