GitHub Discussion #1910

https://github.com/clientIO/joint/discussions/1910 highighterSelector

by Roman Bruckner

HTML

<html>
<head>
    <link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/jointjs/3.6.2/joint.css" />
</head>
<body>
      <!-- content -->
      <div id="paper"></div>

      <!-- dependencies -->
        <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.1/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/3.6.2/joint.js"></script>
    
    </body>
</html>

JavaScript

const 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,
  gridSize: 10,
  async: true,
  sorting: joint.dia.Paper.sorting.APPROX,
  linkPinning: false,
  defaultLink: () => new joint.shapes.standard.DoubleLink(),
});

// Example

const el1 = new joint.shapes.standard.Rectangle({
  position: {
    x: 10,
    y: 170
  },
  size: {
    width: 100,
    height: 90
  }
});

const el2 = new joint.shapes.standard.Ellipse({
  position: {
    x: 400,
    y: 10
  },
  size: {
    width: 100,
    height: 90
  },
  attrs: {
    label: {
      text: 'Highlight root',
      fontSize: 12,
      fontFamily: 'sans-serif'
    }
  }
});

const el3 = new joint.shapes.standard.Ellipse({
  position: {
    x: 400,
    y: 125
  },
  size: {
    width: 100,
    height: 90
  },
  attrs: {
    root: {
      highlighterSelector: 'body'
    },
    label: {
      text: 'Highlight body',
      fontSize: 12,
      fontFamily: 'sans-serif'
    }
  }
});

const el4 = new joint.shapes.standard.Ellipse({
  position: {
    x: 400,
    y: 240
  },
  size: {
    width: 100,
    height: 90
  },
  attrs: {
    root: {
      highlighterSelector: 'text'
    },
    label: {
      text: 'Highlight text',
      fontSize: 12,
      fontFamily: 'sans-serif'
    }
  }
});


const l1 = new joint.shapes.standard.Link({
  source: {
    id: el1.id
  },
  target: {
    x: 200,
    y: 200
  }
});


graph.resetCells([el1, el2, el3, el4, l1]);

paper.unfreeze();

l1.findView(paper).addTools(new joint.dia.ToolsView({
  tools: [new joint.linkTools.TargetArrowhead()]
}));