"use strict";
  
  const { mixin } = require("../../utils");
  const SVGNumber = require("../generated/SVGNumber");
  const SVGGraphicsElementImpl = require("./SVGGraphicsElement-impl").implementation;
  const WindowEventHandlersImpl = require("./WindowEventHandlers-impl").implementation;
  const { domSymbolTree } = require("../helpers/internal-constants");
  const { ELEMENT_NODE } = require("../node-type");
  
  class SVGSVGElementImpl extends SVGGraphicsElementImpl {
    constructor(globalObject, args, privateData) {
      super(globalObject, args, privateData);
      this._proxyWindowEventsToWindow();
    }
  
    createSVGNumber() {
      return SVGNumber.createImpl(this._globalObject, [], {});
    }
  
    getElementById(elementId) {
      // TODO: optimize with _ids caching trick; see Document class.
      for (const node of domSymbolTree.treeIterator(this)) {
        if (node.nodeType === ELEMENT_NODE && node.getAttributeNS(null, "id") === elementId) {
          return node;
        }
      }
      return null;
    }
  
    suspendRedraw() {
      return 1;
    }
    unsuspendRedraw() {}
    unsuspendRedrawAll() {}
    forceRedraw() {}
  }
  
  mixin(SVGSVGElementImpl.prototype, WindowEventHandlersImpl.prototype);
  
  module.exports = {
    implementation: SVGSVGElementImpl
  };