Function setCursor

src/js/svgcanvas.js:3453–3503

(index)

  var allow_dbl;
  
  function setCursor(index) {
    var empty = (textinput.value === "");
    $(textinput).focus();
  
    if(!arguments.length) {
      if(empty) {
        index = 0;
      } else {
        if(textinput.selectionEnd !== textinput.selectionStart) return;
        index = textinput.selectionEnd;
      }
    }
    
    var charbb;
    charbb = chardata[index];
    if (!charbb) return;
    if(!empty) {
      textinput.setSelectionRange(index, index);
    }
    cursor = getElem("text_cursor");
    if (!cursor) {
      cursor = document.createElementNS(svgns, "line");
      assignAttributes(cursor, {
        'id': "text_cursor",
        'stroke': "#333",
        'stroke-width': 1
      });
      cursor = getElem("selectorParentGroup").appendChild(cursor);
    }

    if(!blinker) {
      blinker = setInterval(function() {
        var show = (cursor.getAttribute('display') === 'none');
        cursor.setAttribute('display', show ? 'inline': 'none');
      }, 600);
    }
    
    var start_pt = ptToScreen(charbb.x, textbb.y);
    var end_pt = ptToScreen(charbb.x, (textbb.y + textbb.height));
    
    assignAttributes(cursor, {
      x1: start_pt.x,
      y1: start_pt.y,
      x2: end_pt.x,
      y2: end_pt.y,
      visibility: 'visible',
      display: 'inline'
    });
    
    if(selblock) selblock.setAttribute('d', 'M 0 0');
  }
  
  function setSelection(start, end, skipInput) {
    if(start === end) {