phorge-phorge/webroot/rsrc/js/application/diffusion/behavior-line-linker.js

/**
 * @provides javelin-behavior-diffusion-line-linker
 * @requires javelin-behavior
 *           javelin-stratcom
 *           javelin-dom
 *           javelin-uri
 */

JX.behavior('diffusion-line-linker', function() {

  var origin = null;
  var target = null;
  var root = null;

  function getRowNumber(tr) {
    var th = JX.DOM.find(tr, 'th', 'diffusion-line-link');
    return +(th.textContent || th.innerText);
  }

  JX.Stratcom.listen(
    'mousedown',
    'diffusion-line-link',
    function(e) {
      if (e.isRightButton()) {
        return;
      }
      origin = e.getNode('tag:tr');
      target = origin;
      root = e.getNode('diffusion-source');
      e.kill();
    });

  JX.Stratcom.listen(
    'mouseover',
    'diffusion-source',
    function(e) {
      if (!origin || e.getNode('diffusion-source') !== root) {
        return;
      }
      target = e.getNode('tag:tr');

      var highlighting = false;
      var source = null;
      var trs = JX.DOM.scry(root, 'tr');
      for (var i = 0; i < trs.length; i++) {
        if (!highlighting && (trs[i] === origin || trs[i] === target)) {
          highlighting = true;
          source = trs[i];
        }
        JX.DOM.alterClass(trs[i], 'highlighted', highlighting);
        if (trs[i] === (source === origin ? target : origin)) {
          highlighting = false;
        }
      }
    });

  JX.Stratcom.listen(
    'mouseup',
    null,
    function(e) {
      if (!origin) {
        return;
      }

      var o = getRowNumber(origin);
      var t = getRowNumber(target);
      var lines = (o == t ? o : Math.min(o, t) + '-' + Math.max(o, t));
      var th = JX.DOM.find(origin, 'th', 'diffusion-line-link');
      var uri = JX.DOM.find(th, 'a').href;
      uri = uri.replace(/(.*\$)\d+/, '$1' + lines);

      origin = null;
      target = null;
      e.kill();
      JX.$U(uri).go();
    });

});