export default function hooks ()
{
  this._hooks = {};
  this.all = ['preRenderSvg', 'postRenderSvg', 'insertText'];

  this.prototype.list = function (hook)
  {
    if(typeof this._hooks[hook] === 'undefined') {
      return false;
    }

    return this._hooks[hook];
  }

  this.prototype.attach  = function (hook, obj)
  {
    if(typeof this._hooks[hook] === 'undefined') return;
    for(let func of this._hooks[hook]) {
      obj.pre(hook, func);
    }
  }
}