Inline Text Editing

by Roman Bruckner

HTML

<html>
<head>
    <link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/jointjs/3.3.0/joint.css" />
</head>
<body>
      <!-- content -->
      <div id="paper"></div>

      <!-- dependencies -->
        <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.20/lodash.min.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.4.0/backbone.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/jointjs/3.3.0/joint.js"></script>
    
    </body>
</html>

JavaScript

var graph = new joint.dia.Graph({}, {
  cellNamespace: joint.shapes
});

const paper = new joint.dia.Paper({
  el: document.getElementById('paper'),
  width: 800,
  height: 900,
  model: graph,
  cellViewNamespace: joint.shapes,
  preventDefaultBlankAction: false,
});

var el1 = new joint.shapes.standard.Rectangle({
  position: {
    x: 10,
    y: 10
  },
  size: {
    width: 100,
    height: 100
  },
  attrs: {
    label: {
      text: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.',
      fill: 'white',
      fontSize: 10,
      textWrap: {
        ellipsis: true
      }
    },
    body: {
      fill: 'gray'
    }
  }
});
var el2 = new joint.shapes.standard.Rectangle({
  position: {
    x: 100,
    y: 200
  },
  size: {
    width: 100,
    height: 100
  },
  attrs: {
    label: {
      text: 'Curabitur maximus sagittis justo quis imperdiet.',
      fill: 'yellow',
      fontSize: 14,
      textWrap: {
        ellipsis: true
      }
    },
    body: {
      fill: 'blue'
    }
  }
});
var el3 = new joint.shapes.standard.Rectangle({
  position: {
    x: 300,
    y: 100
  },
  size: {
    width: 200,
    height: 50
  },
  attrs: {
    label: {
      text: 'Morbi ac urna quis arcu suscipit vestibulum.',
      fontSize: 14,
      fill: 'black',
      textWrap: {
        ellipsis: true
      }
    },
    body: {
      fill: 'white'
    }
  }
});
var l1 = new joint.shapes.standard.Link({
  source: {
    id: el1.id
  },
  target: {
    id: el2.id
  },
  labels: [{
    attrs: {
      text: {
        text: 'Label'
      }
    }
  }]
});

graph.addCells([el1, el2, el3, l1]);

paper.on('link:pointerdblclick', function(linkView, evt) {

  const labelNode = linkView.findLabelNode(0, 'rect');
  if (!labelNode.parentNode.contains(evt.target)) return;

  const link = linkView.model;

  const bbox = V(labelNode).getBBox({
    target: paper.svg
  });
  bbox.width = Math.max(bbox.width, 100);
  bbox.height = Math.max(bbox.height, 20);

  const textarea =...