Function updateFakeCursor

src/codemirror.js:14244–14252

(cm)

      }
    }
    function updateFakeCursor(cm) {
      var vim = cm.state.vim;
      var from = clipCursorToContent(cm, copyCursor(vim.sel.head));
      var to = offsetCursor(from, 0, 1);
      if (vim.fakeCursor) {
        vim.fakeCursor.clear();
      }
      vim.fakeCursor = cm.markText(from, to, {className: 'cm-animate-fat-cursor'});
    }
    function handleExternalSelection(cm, vim) {
      var anchor = cm.getCursor('anchor');
      var head = cm.getCursor('head');