packages/odo-viewport/dist/odo-viewport.js
function Viewport() {
      classCallCheck(this, Viewport);

      this.addId = null;
      this.hasActiveHandlers = false;
      this.items = new Map();

      // Assume there is no horizontal scrollbar. documentElement.clientHeight
      // is incorrect on iOS 8 because it includes toolbars.
      this.viewportHeight = window.innerHeight;
      this.viewportWidth = document.documentElement.clientWidth;
      this.viewportTop = 0;

      // What's nice here is that rAF won't execute until the user is on this tab,
      // so if they open the page in a new tab which they aren't looking at,
      // this will execute when they come back to that tab.
      requestAnimationFrame(this.handleScroll.bind(this));
    }
function Viewport() {
      classCallCheck(this, Viewport);

      this.addId = null;
      this.hasActiveHandlers = false;
      this.items = new Map();

      // Assume there is no horizontal scrollbar. documentElement.clientHeight
      // is incorrect on iOS 8 because it includes toolbars.
      this.viewportHeight = window.innerHeight;
      this.viewportWidth = document.documentElement.clientWidth;
      this.viewportTop = 0;

      // What's nice here is that rAF won't execute until the user is on this tab,
      // so if they open the page in a new tab which they aren't looking at,
      // this will execute when they come back to that tab.
      requestAnimationFrame(this.handleScroll.bind(this));
    }
function Viewport ( ) { classCallCheck ( this , Viewport ) ; this . addId = null ; this . hasActiveHandlers = false ; this . items = new Map ( ) ; // Assume there is no horizontal scrollbar. documentElement.clientHeight // is incorrect on iOS 8 because it includes toolbars. this . viewportHeight = window . innerHeight ; this . viewportWidth = document . documentElement . clientWidth ; this . viewportTop = 0 ; // What's nice here is that rAF won't execute until the user is on this tab, // so if they open the page in a new tab which they aren't looking at, // this will execute when they come back to that tab. requestAnimationFrame ( this . handleScroll . bind ( this ) ) ; }
Viewport singleton.
@constructor
Viewport singleton .