2015年4月22日水曜日

環境構築してみた

sass:ある程度覚えた
compass:イマのところ、つかいどころなし
coffeescript: 楽しい部分もあるけど、微妙
gulpでタスクをいれるとすごくいい
browser-syncは、
変更ファイルがあるとその部分を配信更新してくれるので、
iphoneやシュミレータで、つくるときに、webkitやwebViewで一旦は、browser-syncのサーバでリモートでアクセスしながら作成できるので、形にできそうな気がします。その変更ソースは、iphoneの配信ソースそのままで良いので、リビルドなしである程度いけるというのが素晴らしい。
{
  "name": "javascript",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "browser-sync": "^2.6.4",
    "gulp": "^3.8.11",
    "gulp-autoprefixer": "^2.1.0",
    "gulp-plumber": "^1.0.0",
    "gulp-sass": "^1.3.3",
    "gulp-uglify": "^1.2.0"
  }
}

2015年4月12日日曜日

[ratchet] 次のステップ

一通りjsを確認したので、次のステップとして、

 1,CSSをみる
  2,POPサンプルのすごく簡易版をつくる
  3,リストでスワイプしたら削除ボタンがでる

とかをやってみたいと思う。

[ratchet] push.jsをみる

今まで以上にながいけど、ひととおり目を通す。 - sessionStrageにデータを保持 - histをしっかり書き換える もっと簡易なものをサンプルとしてかいてみると、もっと理解できそう。
/* ========================================================================
 * Ratchet: push.js v2.0.2
 * http://goratchet.com/components#push
 * ========================================================================
 * inspired by @defunkt's jquery.pjax.js
 * Copyright 2014 Connor Sears
 * Licensed under MIT (https://github.com/twbs/ratchet/blob/master/LICENSE)
 * ======================================================================== */

/* global _gaq: true */

!(function () {
  'use strict';

// no oprationとかの略かな?

  var noop = function () {};


  // Pushstate caching
  // ==================

  var isScrolling;
  var maxCacheLength = 20;
/*
Web Storage
 sessionStorage(ウィンドウやタブを閉じるまで)
 localStorage(永続的)
*/
  var cacheMapping   = sessionStorage;
  var domCache       = {};
  var transitionMap  = {
    slideIn  : 'slide-out',
    slideOut : 'slide-in',
    fade     : 'fade'
  };

  var bars = {
    bartab             : '.bar-tab',
    barnav             : '.bar-nav',
    barfooter          : '.bar-footer',
    barheadersecondary : '.bar-header-secondary'
  };

  var cacheReplace = function (data, updates) {
    PUSH.id = data.id;
    if (updates) {
      data = getCached(data.id);
    }
    cacheMapping[data.id] = JSON.stringify(data);
/*
現在の履歴エントリの URL または state オブジェクトを更新する
*/
    window.history.replaceState(data.id, data.title, data.url);
/*
子ノードも含めてクローンしたものを保持
*/
    domCache[data.id] = document.body.cloneNode(true);
  };

/*
キャッシュにpushしている(データを追加している)
*/
  var cachePush = function () {
    var id = PUSH.id;

    var cacheForwardStack = JSON.parse(cacheMapping.cacheForwardStack || '[]');
    var cacheBackStack    = JSON.parse(cacheMapping.cacheBackStack    || '[]');

    cacheBackStack.push(id);
/*
全部削除
*/
    while (cacheForwardStack.length) {
      delete cacheMapping[cacheForwardStack.shift()];
    }
/*
指定数を超えたら、古いものから削除
*/
    while (cacheBackStack.length > maxCacheLength) {
      delete cacheMapping[cacheBackStack.shift()];
    }

/*
遷移なしで履歴を追加
*/
    window.history.pushState(null, '', cacheMapping[PUSH.id].url);

/*
作り直したものを保持
*/
    cacheMapping.cacheForwardStack = JSON.stringify(cacheForwardStack);
    cacheMapping.cacheBackStack    = JSON.stringify(cacheBackStack);
  };


/*
キャッシュにpopしている(データを(取り出して)削除している)
*/
  var cachePop = function (id, direction) {
    var forward           = direction === 'forward';
    var cacheForwardStack = JSON.parse(cacheMapping.cacheForwardStack || '[]');
    var cacheBackStack    = JSON.parse(cacheMapping.cacheBackStack    || '[]');
    var pushStack         = forward ? cacheBackStack    : cacheForwardStack;
    var popStack          = forward ? cacheForwardStack : cacheBackStack;

/*
すこし気になる部分、使う箇所によって意味がすごくかわる
*/
    if (PUSH.id) {
      pushStack.push(PUSH.id);
    }
    popStack.pop();

    cacheMapping.cacheForwardStack = JSON.stringify(cacheForwardStack);
    cacheMapping.cacheBackStack    = JSON.stringify(cacheBackStack);
  };

  var getCached = function (id) {
    return JSON.parse(cacheMapping[id] || null) || {};
  };



  var getTarget = function (e) {
//今までみてきたものと同じ、イベント発生部分をAタグで検索
//Aタグに何かをかぶせたりして、先にイベントを取っちゃうのをかんがえているのかな。
    var target = findTarget(e.target);

    if (!target ||
        e.which > 1 ||
        e.metaKey ||
        e.ctrlKey ||
        isScrolling ||
        location.protocol !== target.protocol ||
        location.host     !== target.host ||
        !target.hash && /#/.test(target.href) ||
        target.hash && target.href.replace(target.hash, '') === location.href.replace(location.hash, '') ||
        target.getAttribute('data-ignore') === 'push') { return; }

    return target;
  };


  // Main event handlers (touchend, popstate)
  // ==========================================

  var touchend = function (e) {
    var target = getTarget(e);

    if (!target) {
      return;
    }

    e.preventDefault();

    PUSH({
      url        : target.href,
      hash       : target.hash,
      timeout    : target.getAttribute('data-timeout'),
      transition : target.getAttribute('data-transition')
    });
  };

  var popstate = function (e) {
    var key;
    var barElement;
    var activeObj;
    var activeDom;
    var direction;
    var transition;
    var transitionFrom;
    var transitionFromObj;
    var id = e.state;

    if (!id || !cacheMapping[id]) {
      return;
    }

    direction = PUSH.id < id ? 'forward' : 'back';

    cachePop(id, direction);

    activeObj = getCached(id);
    activeDom = domCache[id];

    if (activeObj.title) {
      document.title = activeObj.title;
    }

    if (direction === 'back') {
      transitionFrom    = JSON.parse(direction === 'back' ? cacheMapping.cacheForwardStack : cacheMapping.cacheBackStack);
      transitionFromObj = getCached(transitionFrom[transitionFrom.length - 1]);
    } else {
      transitionFromObj = activeObj;
    }

    if (direction === 'back' && !transitionFromObj.id) {
      return (PUSH.id = id);
    }

    transition = direction === 'back' ? transitionMap[transitionFromObj.transition] : transitionFromObj.transition;

    if (!activeDom) {
      return PUSH({
        id         : activeObj.id,
        url        : activeObj.url,
        title      : activeObj.title,
        timeout    : activeObj.timeout,
        transition : transition,
        ignorePush : true
      });
    }

    if (transitionFromObj.transition) {
      activeObj = extendWithDom(activeObj, '.content', activeDom.cloneNode(true));
      for (key in bars) {
        if (bars.hasOwnProperty(key)) {
          barElement = document.querySelector(bars[key]);
          if (activeObj[key]) {
            swapContent(activeObj[key], barElement);
          } else if (barElement) {
            barElement.parentNode.removeChild(barElement);
          }
        }
      }
    }

    swapContent(
      (activeObj.contents || activeDom).cloneNode(true),
      document.querySelector('.content'),
      transition
    );

    PUSH.id = id;

    document.body.offsetHeight; // force reflow to prevent scroll
  };


  // Core PUSH functionality
  // =======================

  var PUSH = function (options) {
    var key;
    var xhr = PUSH.xhr;

    options.container = options.container || options.transition ? document.querySelector('.content') : document.body;

    for (key in bars) {
      if (bars.hasOwnProperty(key)) {
        options[key] = options[key] || document.querySelector(bars[key]);
      }
    }

    if (xhr && xhr.readyState < 4) {
      xhr.onreadystatechange = noop;
//処理を止める
      xhr.abort();
    }

    xhr = new XMLHttpRequest();
    xhr.open('GET', options.url, true);
    xhr.setRequestHeader('X-PUSH', 'true');

    xhr.onreadystatechange = function () {
      if (options._timeout) {
        clearTimeout(options._timeout);
      }
      if (xhr.readyState === 4) {
        xhr.status === 200 ? success(xhr, options) : failure(options.url);
      }
    };

    if (!PUSH.id) {
      cacheReplace({
        id         : +new Date(),
        url        : window.location.href,
        title      : document.title,
        timeout    : options.timeout,
        transition : null
      });
    }

    if (options.timeout) {
      options._timeout = setTimeout(function () {  xhr.abort('timeout'); }, options.timeout);
    }

    xhr.send();

    if (xhr.readyState && !options.ignorePush) {
      cachePush();
    }
  };


  // Main XHR handlers
  // =================

  var success = function (xhr, options) {
    var key;
    var barElement;
    var data = parseXHR(xhr, options);

    if (!data.contents) {
      return locationReplace(options.url);
    }

    if (data.title) {
      document.title = data.title;
    }

    if (options.transition) {
      for (key in bars) {
        if (bars.hasOwnProperty(key)) {
          barElement = document.querySelector(bars[key]);
          if (data[key]) {
            swapContent(data[key], barElement);
          } else if (barElement) {
            barElement.parentNode.removeChild(barElement);
          }
        }
      }
    }

    swapContent(data.contents, options.container, options.transition, function () {
      cacheReplace({
        id         : options.id || +new Date(),
        url        : data.url,
        title      : data.title,
        timeout    : options.timeout,
        transition : options.transition
      }, options.id);
      triggerStateChange();
    });

    if (!options.ignorePush && window._gaq) {
      _gaq.push(['_trackPageview']); // google analytics
    }
    if (!options.hash) {
      return;
    }
  };

  var failure = function (url) {
    throw new Error('Could not get: ' + url);
  };


  // PUSH helpers
  // ============

  var swapContent = function (swap, container, transition, complete) {
    var enter;
    var containerDirection;
    var swapDirection;

    if (!transition) {
      if (container) {
        container.innerHTML = swap.innerHTML;
      } else if (swap.classList.contains('content')) {
        document.body.appendChild(swap);
      } else {
        document.body.insertBefore(swap, document.querySelector('.content'));
      }
    } else {
      enter  = /in$/.test(transition);

      if (transition === 'fade') {
        container.classList.add('in');
        container.classList.add('fade');
        swap.classList.add('fade');
      }

      if (/slide/.test(transition)) {
        swap.classList.add('sliding-in', enter ? 'right' : 'left');
        swap.classList.add('sliding');
        container.classList.add('sliding');
      }

      container.parentNode.insertBefore(swap, container);
    }

/*
以下遷移に合わせのアニメーション動作
*/
    if (!transition) {
      complete && complete();
    }

    if (transition === 'fade') {
      container.offsetWidth; // force reflow
      container.classList.remove('in');
      var fadeContainerEnd = function () {
        container.removeEventListener('webkitTransitionEnd', fadeContainerEnd);
        swap.classList.add('in');
        swap.addEventListener('webkitTransitionEnd', fadeSwapEnd);
      };
      var fadeSwapEnd = function () {
        swap.removeEventListener('webkitTransitionEnd', fadeSwapEnd);
        container.parentNode.removeChild(container);
        swap.classList.remove('fade');
        swap.classList.remove('in');
        complete && complete();
      };
      container.addEventListener('webkitTransitionEnd', fadeContainerEnd);

    }

    if (/slide/.test(transition)) {
      var slideEnd = function () {
        swap.removeEventListener('webkitTransitionEnd', slideEnd);
        swap.classList.remove('sliding', 'sliding-in');
        swap.classList.remove(swapDirection);
        container.parentNode.removeChild(container);
        complete && complete();
      };

      container.offsetWidth; // force reflow
      swapDirection      = enter ? 'right' : 'left';
      containerDirection = enter ? 'left' : 'right';
      container.classList.add(containerDirection);
      swap.classList.remove(swapDirection);
      swap.addEventListener('webkitTransitionEnd', slideEnd);
    }
  };

/*
push完了通知
*/
  var triggerStateChange = function () {
    var e = new CustomEvent('push', {
      detail: { state: getCached(PUSH.id) },
      bubbles: true,
      cancelable: true
    });

    window.dispatchEvent(e);
  };

  var findTarget = function (target) {
    var i;
    var toggles = document.querySelectorAll('a');

    for (; target && target !== document; target = target.parentNode) {
      for (i = toggles.length; i--;) {
        if (toggles[i] === target) {
          return target;
        }
      }
    }
  };

  var locationReplace = function (url) {
    window.history.replaceState(null, '', '#');
    window.location.replace(url);
  };

  var extendWithDom = function (obj, fragment, dom) {
    var i;
    var result = {};

    for (i in obj) {
      if (obj.hasOwnProperty(i)) {
        result[i] = obj[i];
      }
    }

    Object.keys(bars).forEach(function (key) {
      var el = dom.querySelector(bars[key]);
      if (el) {
        el.parentNode.removeChild(el);
      }
      result[key] = el;
    });

    result.contents = dom.querySelector(fragment);

    return result;
  };

  var parseXHR = function (xhr, options) {
    var head;
    var body;
    var data = {};
    var responseText = xhr.responseText;

    data.url = options.url;

    if (!responseText) {
      return data;
    }

/*
取ってきたデータを変換している
*/
    if (/]*>([\s\S.]*)<\/head>/i)[0];
      body.innerHTML = responseText.match(/]*>([\s\S.]*)<\/body>/i)[0];
    } else {
      head           = body = document.createElement('div');
      head.innerHTML = responseText;
    }

    data.title = head.querySelector('title');
    var text = 'innerText' in data.title ? 'innerText' : 'textContent';
    data.title = data.title && data.title[text].trim();

    if (options.transition) {
      data = extendWithDom(data, '.content', body);
    } else {
      data.contents = body;
    }

    return data;
  };


  // Attach PUSH event handlers
  // ==========================

  window.addEventListener('touchstart', function () { isScrolling = false; });
  window.addEventListener('touchmove', function () { isScrolling = true; });
  window.addEventListener('touchend', touchend);
  window.addEventListener('click', function (e) { if (getTarget(e)) {e.preventDefault();} });
  window.addEventListener('popstate', popstate);
  window.PUSH = PUSH;

}());

2015年4月9日木曜日

[Unity][ios][Hagoita] NSURLProtocol を使ったiOS連携のテスト

Unityで出力したProjectでのHagoitaが導入できるかテストしてみました
Hagoita: https://github.com/withstandist/hagoita

今回は、簡単な動作テストのため、HKURLProtocolをカスタマイズしたものを使います。
つまり、普通にNSURLProtocolとUnityの連携になります。
1,Unityで,uGUIでボタンを作成
using UnityEngine;
using System.Collections;

public class buttonAction : MonoBehaviour {

 // Use this for initialization
 void Start () {
 
 }
 
 // Update is called once per frame
 void Update () {
 
 }

 public void ClickTest () {
  Debug.Log ("Clicked.");
  StartCoroutine(Get("http://localhost:7777/test"));
 }

 IEnumerator Get (string url) {
  // 送信開始
  WWW www = new WWW (url);
  yield return www;
  
  // 成功
  if (www.error == null) {
   Debug.Log ("Get Success");
  } else {
   Debug.Log ("Get ERROR");
  }
 }
}
2、HKURLProtocolカスタムを用意
//
//  HKURLProtocol.m
//  Unity-iPhone
//
//  Created by KIMITA Yusuke on 2015/04/09.
//
//

#import "HKURLProtocol.h"

@implementation HKURLProtocol


+ (BOOL)canInitWithRequest:(NSURLRequest *)request{
    NSLog(@"canInitWithRequest");
    return YES;
}


+ (NSURLRequest *)canonicalRequestForRequest:(NSURLRequest *)request
{
    return request;
}

- (void)startLoading
{
//Alertをだしてみた
    UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"title" message:@"message" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
    [alert show];
    
    [self responseJSONWithHttpStatusCode:200 data:[@"{}" dataUsingEncoding:NSUTF8StringEncoding]];
}

- (void) responseJSONWithHttpStatusCode:(int)statusCode data:(NSData*) data{
    NSDictionary*headers = [NSDictionary dictionaryWithObjectsAndKeys:@"application/json", @"Content-Type",
                            [NSString stringWithFormat:@"%ld",[data length]], @"Content-Length",
                            nil];
    NSHTTPURLResponse* response = [[NSHTTPURLResponse alloc] initWithURL:[self.request URL]
                                                              statusCode:statusCode
                                                             HTTPVersion:@"1.1"
                                                            headerFields:headers];
    
    [self.client URLProtocol:self
          didReceiveResponse:response
          cacheStoragePolicy:NSURLCacheStorageNotAllowed];
    
    [self.client URLProtocol:self didLoadData:data];
    [self.client URLProtocolDidFinishLoading:self];
}

- (void)stopLoading
{
}

@end
3、UnityAppController.mmでNSURLProtocolを登録する
- (void)startUnity:(UIApplication*)application
{
    [NSURLProtocol registerClass:HKURLProtocol.class];

4、結果
できました。
アンドロイドでの同様な仕組みができれば、使い道は広がりそうです。

2015年4月5日日曜日

[Ratchet] sliders.jsをみる

display: inline-block;のスクロール制御で実装されている
/* ========================================================================
 * Ratchet: sliders.js v2.0.2
 * http://goratchet.com/components#sliders
 * ========================================================================
   Adapted from Brad Birdsall's swipe
 * Copyright 2014 Connor Sears
 * Licensed under MIT (https://github.com/twbs/ratchet/blob/master/LICENSE)
 * ======================================================================== */

!(function () {
  'use strict';

  var pageX;
  var pageY;
  var slider;
  var deltaX;
  var deltaY;
  var offsetX;
  var lastSlide;
  var startTime;
  var resistance;
  var sliderWidth;
  var slideNumber;
  var isScrolling;
  var scrollableArea;

  var getSlider = function (target) {
    var i;
//.sliderのしたslide-groupにslideたちがありそれが対象する
    var sliders = document.querySelectorAll('.slider > .slide-group');

    for (; target && target !== document; target = target.parentNode) {
      for (i = sliders.length; i--;) {
        if (sliders[i] === target) {
          return target;
        }
      }
    }
  };

  var getScroll = function () {
    if ('webkitTransform' in slider.style) {
      var translate3d = slider.style.webkitTransform.match(/translate3d\(([^,]*)/);
      var ret = translate3d ? translate3d[1] : 0;
      return parseInt(ret, 10);
    }
  };

  var setSlideNumber = function (offset) {
    var round = offset ? (deltaX < 0 ? 'ceil' : 'floor') : 'round';
    slideNumber = Math[round](getScroll() / (scrollableArea / slider.children.length));
    slideNumber += offset;
    slideNumber = Math.min(slideNumber, 0);
    slideNumber = Math.max(-(slider.children.length - 1), slideNumber);
  };

//初期位置の値のセット
  var onTouchStart = function (e) {
    slider = getSlider(e.target);

    if (!slider) {
      return;
    }

    var firstItem  = slider.querySelector('.slide');

    scrollableArea = firstItem.offsetWidth * slider.children.length;
    isScrolling    = undefined;
    sliderWidth    = slider.offsetWidth;
    resistance     = 1;
    lastSlide      = -(slider.children.length - 1);
    startTime      = +new Date();
    pageX          = e.touches[0].pageX;
    pageY          = e.touches[0].pageY;
    deltaX         = 0;
    deltaY         = 0;

    setSlideNumber(0);

    slider.style['-webkit-transition-duration'] = 0;
  };

  var onTouchMove = function (e) {
    if (e.touches.length > 1 || !slider) {
      return; // Exit if a pinch || no slider
    }

    deltaX = e.touches[0].pageX - pageX;
    deltaY = e.touches[0].pageY - pageY;
    pageX  = e.touches[0].pageX;
    pageY  = e.touches[0].pageY;

    if (typeof isScrolling === 'undefined') {
      isScrolling = Math.abs(deltaY) > Math.abs(deltaX);
    }

    if (isScrolling) {
      return;
    }

    offsetX = (deltaX / resistance) + getScroll();

    e.preventDefault();

    resistance = slideNumber === 0         && deltaX > 0 ? (pageX / sliderWidth) + 1.25 :
                 slideNumber === lastSlide && deltaX < 0 ? (Math.abs(pageX) / sliderWidth) + 1.25 : 1;

    slider.style.webkitTransform = 'translate3d(' + offsetX + 'px,0,0)';
  };


//Slideを位置に合わせて移動
  var onTouchEnd = function (e) {
    if (!slider || isScrolling) {
      return;
    }

    setSlideNumber(
      (+new Date()) - startTime < 1000 && Math.abs(deltaX) > 15 ? (deltaX < 0 ? -1 : 1) : 0
    );

    offsetX = slideNumber * sliderWidth;

//cssでアニメーション
    slider.style['-webkit-transition-duration'] = '.2s';
    slider.style.webkitTransform = 'translate3d(' + offsetX + 'px,0,0)';

//Slideイベントを発生
    e = new CustomEvent('slide', {
      detail: { slideNumber: Math.abs(slideNumber) },
      bubbles: true,
      cancelable: true
    });

    slider.parentNode.dispatchEvent(e);
  };


//Eventの紐付け
  window.addEventListener('touchstart', onTouchStart);
  window.addEventListener('touchmove', onTouchMove);
  window.addEventListener('touchend', onTouchEnd);

}());

2015年4月4日土曜日

[Ratchet] segmented-controllersを見る

/* ========================================================================
 * Ratchet: segmented-controllers.js v2.0.2
 * http://goratchet.com/components#segmentedControls
 * ========================================================================
 * Copyright 2014 Connor Sears
 * Licensed under MIT (https://github.com/twbs/ratchet/blob/master/LICENSE)
 * ======================================================================== */

!(function () {
  'use strict';

  var getTarget = function (target) {
    var i;

//modal.js,popover.jsとちがい直接的に指定することで限定している。
    var segmentedControls = document.querySelectorAll('.segmented-control .control-item');

    for (; target && target !== document; target = target.parentNode) {
      for (i = segmentedControls.length; i--;) {
        if (segmentedControls[i] === target) {
          return target;
        }
      }
    }
  };

//touchendEventに紐付け
  window.addEventListener('touchend', function (e) {
    var activeTab;
    var activeBodies;
    var targetBody;
    var targetTab     = getTarget(e.target);
    var className     = 'active';
    var classSelector = '.' + className;

    if (!targetTab) {
      return;
    }

//activeなものを検索
    activeTab = targetTab.parentNode.querySelector(classSelector);

    if (activeTab) {
//一旦削除
//一つしかactiveがない想定(変なhtmlはだめ)
      activeTab.classList.remove(className);
    }

//自分をactiveに
    targetTab.classList.add(className);

    if (!targetTab.hash) {
      return;
    }

//href でターゲットを指定
    targetBody = document.querySelector(targetTab.hash);

    if (!targetBody) {
      return;
    }

// 大きなくくりの中に、各ページが用意されている必要がある
    activeBodies = targetBody.parentNode.querySelectorAll(classSelector);

    for (var i = 0; i < activeBodies.length; i++) {
      activeBodies[i].classList.remove(className);
    }
//activeを一つへ
    targetBody.classList.add(className);
  });

  window.addEventListener('click', function (e) { if (getTarget(e.target)) {e.preventDefault();} });
}());

[Ratchet] popoverをみる

/* ========================================================================
 * Ratchet: popovers.js v2.0.2
 * http://goratchet.com/components#popovers
 * ========================================================================
 * Copyright 2014 Connor Sears
 * Licensed under MIT (https://github.com/twbs/ratchet/blob/master/LICENSE)
 * ======================================================================== */

!(function () {
  'use strict'; //厳密モード

  var popover;

/*
Modalと同じ
*/
  var findPopovers = function (target) {
    var i;
    var popovers = document.querySelectorAll('a');

    for (; target && target !== document; target = target.parentNode) {
      for (i = popovers.length; i--;) {
        if (popovers[i] === target) {
          return target;
        }
      }
    }
  };

/*
閉じる
*/
  var onPopoverHidden = function () {
    popover.style.display = 'none';
    popover.removeEventListener('webkitTransitionEnd', onPopoverHidden);
  };

/*
後ろに薄い背景のこと
*/
  var backdrop = (function () {
    var element = document.createElement('div');
    element.classList.add('backdrop');

/*
backdropをタッチでクローズ処理
*/
    element.addEventListener('touchend', function () {
//element.addEventListener('touchend', function (e) {
      popover.addEventListener('webkitTransitionEnd', onPopoverHidden);
      popover.classList.remove('visible');
      popover.parentNode.removeChild(backdrop);
//e.preventDefault(); 
    });

    return element;
  }());

/*
Modalと基本ロジック同じだが、例外処理(try/catch)をしている
*/
  var getPopover = function (e) {
    var anchor = findPopovers(e.target);

    if (!anchor || !anchor.hash || (anchor.hash.indexOf('/') > 0)) {
      return;
    }

    try {
      popover = document.querySelector(anchor.hash);
    }
    catch (error) {
      popover = null;
    }

    if (popover === null) {
      return;
    }

    if (!popover || !popover.classList.contains('popover')) {
      return;
    }
    return popover;
  };

/*
PopOverを表示するよう登録
*/
  var showHidePopover = function (e) {
    var popover = getPopover(e);

    if (!popover) {
      return;
    }

    popover.style.display = 'block';
    popover.offsetHeight;
    popover.classList.add('visible');

    popover.parentNode.appendChild(backdrop);
  };

//touchendイベントにbind
  window.addEventListener('touchend', showHidePopover);

}());