este-library-oldschool/este/app/screen/oneview.js

Library for github.com/steida/este.git

// Generated by github.com/steida/coffee2closure 900.1.18
/**
  @fileoverview Simple view manager. It switches view elements without fancy
  animation. Use it for desktop or old mobile devices, where FX is slow and
  ```-webkit-overflow-scrolling: touch;``` does not work.
 */
var extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.superClass_ = parent.prototype; return child; },
  hasProp = {}.hasOwnProperty;
goog.provide('este.app.screen.OneView');
goog.require('este.app.screen.Base');
goog.require('goog.dom');
goog.require('goog.dom.classlist');
goog.require('goog.userAgent');

/**
  @param {boolean} scrollingOnHistory
  @constructor
  @extends {este.app.screen.Base}
 */
este.app.screen.OneView = function(scrollingOnHistory) {
  this.scrollingOnHistory = scrollingOnHistory;
  este.app.screen.OneView.superClass_.constructor.call(this);
  goog.dom.classlist.add(document.documentElement, 'e-app-screen-oneview');
}
extend(este.app.screen.OneView, superClass);

/**
  @type {boolean}
  @protected
 */
este.app.screen.OneView.prototype.scrollingOnHistory = true;

/**
  @override
 */
este.app.screen.OneView.prototype.enterDocument = function() {
  este.app.screen.OneView.superClass_.enterDocument.call(this);
  if (this.scrollingOnHistory) {
    this.on(window, 'scroll', this.onWindowScroll);
  }
};

/**
  @param {goog.events.BrowserEvent} e
  @protected
 */
este.app.screen.OneView.prototype.onWindowScroll = function(e) {
  if (!this.currentView) {
    return;
  }
  return this.currentView.scroll = goog.dom.getDocumentScroll();
};

/**
  @param {boolean} isNavigation
  @protected
 */
este.app.screen.OneView.prototype.updateScroll = function(isNavigation) {
  var update;
  update = (function(_this) {
    return function() {
      if (isNavigation && _this.currentView.scroll) {
        return window.scrollTo(_this.currentView.scroll.x, _this.currentView.scroll.y);
      } else {
        return _this.scrollTo(0, 0);
      }
    };
  })(this);
  if (goog.userAgent.MOBILE) {
    return setTimeout(update, 0);
  } else {
    return update();
  }
};

/**
  @override
 */
este.app.screen.OneView.prototype.show = function(view, isNavigation) {
  this.removePreviousView();
  this.setCurrentView(view);
  this.lazyRenderView();
  this.rememberPreviousView();
  return this.updateScroll(isNavigation);
};

/**
  @override
 */
este.app.screen.OneView.prototype.hide = function(view) {
  return view.exitDocument();
};