/*
  text-shadow for MSIE with jQuery
  http://asamuzak.jp
*/

var isMSIE = /*@cc_on!@*/false;
var ieVersion = (function(reg) { return isMSIE && navigator.userAgent.match(reg) ? RegExp.$1 * 1 : null; })(/MSIE\s([0-9]+[\.0-9]*)/);

var cNum = (function(n) { return function() { return n++; }})(0);

function showElm(eId) {
  var elm = document.getElementById(eId);
  elm && (elm.style.visibility = 'visible');
}
function hideElm(eId) {
  var elm = document.getElementById(eId);
  elm && (elm.style.visibility = 'hidden');
}

(function($) {
  $.fn.textShadowForMSIE = function(sObj) {
    var getCompStyle = function(elm) {
      return isMSIE && ieVersion < 9 ? elm.currentStyle : document.defaultView.getComputedStyle(elm, '');
    };
    var getAncestObj = function(pElm) {
      var arr = [];
      if(pElm = pElm.parentNode) {
        for(arr[arr.length] = pElm; pElm.nodeName.toLowerCase() != "body";) {
          (pElm = pElm.parentNode) && (arr[arr.length] = pElm);
        }
      }
      return arr;
    };
    var convPercentTo256 = function(cProf) {
      if(cProf.match(/(rgba?)\(\s*([0-9\.]+%?\s*,\s*[0-9\.]+%?\s*,\s*[0-9\.]+%?)\s*(,\s*[01]?[\.0-9]*)?\s*\)/)) {
        for(var cType = RegExp.$1, arr = RegExp.$2.split(/,/), aCh = (RegExp.$3 || ''), rgbArr = [], i = 0, l = arr.length; i < l; i++) {
          arr[i].match(/([0-9\.]+)%/) && (arr[i] = Math.round(RegExp.$1 * 255 / 100));
          rgbArr[rgbArr.length] = arr[i];
        }
        return cType + '(' + rgbArr.join(',') + aCh + ')';
      }
    };
    var convUnitToPx = function(sUnit, obj) {
      var getUnitRatio = function(sUnit) {
        var elm, val, dId = cNum(), dBox = document.createElement('div'), dBody = document.getElementsByTagName('body')[0];
        dBox.id = 'dummyDiv' + dId;  dId++;
        dBox.style.width = sUnit;
        dBox.style.height = 0;
        dBox.style.visibility = 'hidden';
        dBody.appendChild(dBox);
        elm = document.getElementById(dBox.id);
        val = Math.abs(elm.getBoundingClientRect().right - elm.getBoundingClientRect().left);
        dBody.removeChild(elm);
        return val;
      };
      if(sUnit.match(/^0(em|ex|px|cm|mm|in|pt|pc)?$/)) {
        return 0;
      }
      else if(sUnit.match(/^(\-?[0-9\.]+)px$/)) {
        return RegExp.$1 * 1;
      }
      else if(sUnit.match(/^(\-?[0-9\.]+)(cm|mm|in|pt|pc)$/)) {
        return RegExp.$1 * 1 >= 0 ? getUnitRatio(sUnit) : getUnitRatio((RegExp.$1 * -1) + RegExp.$2) * -1;
      }
      else if(sUnit.match(/^(\-?[0-9\.]+)(em|ex)$/)) {
        var val = (getUnitRatio(sUnit) / getUnitRatio('1em')), arr = getAncestObj(obj), dRoot = document.getElementsByTagName('html')[0], fSize = [];
        arr.unshift(obj);  arr[arr.length] = dRoot;
        for(var i = 0, l = arr.length; i < l; i++) {
          fSize[fSize.length] = getCompStyle(arr[i]).fontSize;
        }
        for(i = 0, l = fSize.length; i < l; i++) {
          if(fSize[i].match(/^([0-9\.]+)%$/)) {
            val *= (RegExp.$1 / 100);
          }
          else if(fSize[i].match(/^[0-9\.]+(em|ex)$/)) {
            val *= (getUnitRatio(fSize[i]) / getUnitRatio('1em'));
          }
          else if(fSize[i].match(/^smaTagr$/)) {
            val /= 1.2;
          }
          else if(fSize[i].match(/^larger$/)) {
            val *= 1.2;
          }
          else if(fSize[i].match(/^([0-9\.]+)(px|cm|mm|in|pt|pc)$/)) {
            val *= getUnitRatio(fSize[i]);
            break;
          }
          else if(fSize[i].match(/^xx\-small$/)) {
            val *= (getUnitRatio(getCompStyle(dRoot).fontSize) / 1.728);
            break;
          }
          else if(fSize[i].match(/^x\-small$/)) {
            val *= (getUnitRatio(getCompStyle(dRoot).fontSize) / 1.44);
            break;
          }
          else if(fSize[i].match(/^small$/)) {
            val *= (getUnitRatio(getCompStyle(dRoot).fontSize) / 1.2);
            break;
          }
          else if(fSize[i].match(/^medium$/)){
            val *= getUnitRatio(getCompStyle(dRoot).fontSize);
            break;
          }
          else if(fSize[i].match(/^large$/)) {
            val *= (getUnitRatio(getCompStyle(dRoot).fontSize) * 1.2);
            break;
          }
          else if(fSize[i].match(/^x\-large$/)) {
            val *= (getUnitRatio(getCompStyle(dRoot).fontSize) * 1.44);
            break;
          }
          else if(fSize[i].match(/^xx\-large$/)) {
            val *= (getUnitRatio(getCompStyle(dRoot).fontSize) * 1.728);
            break;
          }
          else if(fSize[i].match(/^([0-9\.]+)([a-z]+)/)) {
            val *= getUnitRatio(fSize[i]);
            break;
          }
          else {
            break;
          }
        }
        return Math.round(val);
      }
    };
    var removeDupFunc = function(fStr) {
      for(var arr = fStr.replace(/\s+/, '').split(/;/), fArr = [], bool, i = 0, l = arr.length; i < l; i++) {
        bool = true;
        for(var j = i; j < l; j++) {
          i != j && arr[i] == arr[j] && (bool = false);
        }
        bool && arr[i] != '' && (fArr[fArr.length] = arr[i]);
      }
      return fArr.join(';') + ';';
    };
    var revArr = function(arr) {
      for(var rArr = [], i = 0, l = arr.length; i < l; i++) {
        rArr.unshift(arr[i]);
      }
      return rArr;
    };
    var getShadowValue = function() {
      if(sObj.sValue.match(/none/)) {
        return 'none';
      }
      else {
        for(var val = [], arr = sObj.sValue.match(/((rgba?\(\s*[0-9\.]+%?\s*,\s*[0-9\.]+%?\s*,\s*[0-9\.]+%?\s*(,\s*[01]?[\.0-9]*\s*)?\)|#[0-9a-fA-F]{3,6}|[a-zA-Z]+)\s)?(\-?[0-9\.]+(em|ex|px|cm|mm|in|pt|pc)?\s*){2,3}(rgba?\(\s*[0-9\.]+%?\s*,\s*[0-9\.]+%?\s*,\s*[0-9\.]+%?\s*(,\s*[01]?[\.0-9]*\s*)?\)|#[0-9a-fA-F]{3,6}|[a-zA-Z]+)?/g), i = 0, l = arr.length; i < l; i++) {
          val[i] = { x : '0', y : '0', z : '0', cProf : null };
          var uArr = arr[i].match(/\-?[0-9\.]+(em|ex|px|cm|mm|in|pt|pc)?\s+\-?[0-9\.]+(em|ex|px|cm|mm|in|pt|pc)?(\s+[0-9\.]+(em|ex|px|cm|mm|in|pt|pc)?)?/);
          if(uArr = uArr[0].split(/\s+/), uArr[0].match(/^(\-?[0-9\.]+(em|ex|px|cm|mm|in|pt|pc)?)$/) && uArr[1].match(/^(\-?[0-9\.]+(em|ex|px|cm|mm|in|pt|pc)?)$/)) {
            uArr.length >= 2 && (val[i].x = uArr[0], val[i].y = uArr[1]);
            uArr.length == 3 && uArr[2].match(/^([0-9\.]+(em|ex|px|cm|mm|in|pt|pc)?)$/) && (val[i].z = uArr[2]);
            arr[i].match(/%/) && (arr[i] = convPercentTo256(arr[i]));
            arr[i].match(/^(rgba?\(\s*[0-9]+\s*,\s*[0-9]+\s*,\s*[0-9]+\s*(,\s*[01]?[\.0-9]*\s*)?\)|[a-zA-Z]+)/) ? (val[i].cProf = RegExp.$1) :
            arr[i].match(/\s(rgba?\(\s*[0-9]+\s*,\s*[0-9]+\s*,\s*[0-9]+\s*(,\s*[01]?[\.0-9]*\s*)?\)|#[0-9a-fA-F]{3,6}|[a-zA-Z]+)$/) && (val[i].cProf = RegExp.$1);
          }
          else {
            val = 'invalid';
            break;
          }
        }
        return val;
      }
    };
    var setShadowNodeColor = function(elm) {
      for(var arr = elm.childNodes, i = 0, l = arr.length; i < l; i++) {
        if(arr[i].nodeType == 1) {
          !arr[i].hasChildNodes() ? arr[i].style.visibility = 'hidden' : (arr[i].style.color = elm.style.color, setShadowNodeColor(arr[i]));
        }
      }
    };
    var hideAncestShadow = function(oElm, pElm) {
      for(var arr = pElm.childNodes, i = 0, l = arr.length; i < l; i++) {
        if(arr[i].hasChildNodes()) {
          arr[i].nodeName.toLowerCase() == oElm.tagName.toLowerCase() && arr[i].firstChild == oElm.firstChild ? arr[i].style.visibility = 'hidden' : hideAncestShadow(oElm, arr[i]);
        }
      }
    };
    var boolShadowChild = function(elm) {
      for(var bool = true, arr = getAncestObj(elm), i = 0, l = arr.length; i < l; i++) {
        if(arr[i].tagName.toLowerCase() == 'span' && arr[i].className.match(/dummyShadow/)) {
          bool = false;
          break;
        }
      }
      return bool;
    };
    var setShadow = function(elm) {
      var sShadow = getShadowValue();
      if(sShadow != 'invalid') {
        for(var arr = [], nArr = elm.childNodes, bool = false, i = 0, l = nArr.length; i < l; i++) {
          if(nArr[i].nodeName.toLowerCase() == 'span' && nArr[i].className.match(/dummyShadow/)) {
            nArr[i].className.match(/hasImp/) && (bool = true);
            arr[arr.length] = nArr[i].id;
          }
        }
        if(bool == false || hasImp == true) {
          var mOver = elm.getAttribute('onmouseover') || '';
          var mOut = elm.getAttribute('onmouseout') || '';
          mOver != '' && !mOver.match(/;$/) && (mOver += ';');
          mOut != '' && !mOut.match(/;$/) && (mOut += ';');
          for(i = 0, l = arr.length; i < l; i++) {
            if(sObj.onHover && sShadow == 'none') {
              mOver += "hideElm('" + arr[i] + "');";
              mOut += "showElm('" + arr[i] + "');";
            }
            else if(!(sObj.onHover && sShadow != 'none')) {
              elm.removeChild(document.getElementById(arr[i]));
            }
          }
          sObj.onHover && sShadow == 'none' && elm.setAttribute('onmouseover', mOver), elm.setAttribute('onmouseout', mOut);
          for(var aBg, arr = getAncestObj(elm), i = 0, l = arr.length; i < l; i++) {
            aBg == null && (getCompStyle(arr[i]).backgroundColor != 'transparent' || getCompStyle(arr[i]).backgroundImage != 'none') && (aBg = arr[i]);
            for(var cArr = arr[i].childNodes, j = 0, k = cArr.length; j < k; j++) {
              cArr[j].nodeType == 1 && cArr[j].nodeName.toLowerCase() == 'span' && cArr[j].className.match(/dummyShadow/) && hideAncestShadow(elm, document.getElementById(cArr[j].id));
            }
          }
          sShadow != 'none' && sShadow.length > 1 && (getCompStyle(elm).backgroundColor != 'transparent' || getCompStyle(elm).backgroundImage != 'none') && (sShadow = revArr(sShadow));
          if(sShadow == 'none' && sObj.onHover == false) {
            for(var arr = elm.parentNode.childNodes, i = 0, l = arr.length; i < l; i++) {
              if(arr[i].nodeName.toLowerCase() == 'span' && arr[i].className == 'dummyShadow') {
                getCompStyle(elm).display == 'inline-block' && (elm.style.display = 'inline');
                getCompStyle(elm).position == 'relative' && (elm.style.position = 'static');
                break;
              }
            }
          }
          if(sShadow != 'none' && nArr.length != 0 && boolShadowChild(elm)) {
            for(var hArr = [], clNode = elm.cloneNode(true), arr = clNode.childNodes, i = 0, l = arr.length; i < l; i++) {
              arr[i] != null && arr[i].hasChildNodes() && arr[i].nodeName.toLowerCase() == 'span' && arr[i].className.match(/dummyShadow/) && (hArr[hArr.length] = arr[i].id, clNode.removeChild(arr[i]));
            }
            var sNode = clNode.innerHTML;
            ieVersion == 9 && (sNode = sNode.replace(/\n/, ' '));
            ieVersion == 8 && (elm.innerHTML = elm.innerHTML);
            for(i = 0, l = sShadow.length; i < l; i++) {
              var pxRad = convUnitToPx(sShadow[i].z, elm);
              var xPos = convUnitToPx(sShadow[i].x, elm) - pxRad + convUnitToPx(getCompStyle(elm).paddingLeft, elm);
              getCompStyle(elm).textAlign == 'center' && (xPos -= ((convUnitToPx(getCompStyle(elm).paddingLeft, elm) + convUnitToPx(getCompStyle(elm).paddingRight, elm)) / 2));
              var yPos = convUnitToPx(sShadow[i].y, elm) - pxRad + convUnitToPx(getCompStyle(elm).paddingTop, elm);
              if(ieVersion == 7 && pxRad == 0) {
                xPos >= 0 && (xPos -= 1);
                yPos >= 0 && (yPos -= 1);
              }
              var sColor = sShadow[i].cProf || getCompStyle(elm).color;
              var sOpacity = 0.6;
              sShadow[i].cProf != null && sShadow[i].cProf.match(/rgba\(\s*([0-9]+\s*,\s*[0-9]+\s*,\s*[0-9]+)\s*,\s*([01]?[\.0-9]*)\)/) && (sColor = 'rgb(' + RegExp.$1 + ')', sOpacity = (RegExp.$2 * 1));
              var sBox = document.createElement('span');
              var sId = cNum();
              sBox.id = 'dummyShadow' + sId;  sId++;
              sBox.className = (sObj.hasImp == true) ? 'dummyShadow hasImp' : 'dummyShadow';
              sBox.style.display = 'block';
              sBox.style.position = 'absolute';
              sBox.style.left = xPos + 'px';
              sBox.style.top = yPos + 'px';
              sBox.style.width = '100%';
              sBox.style.color = sColor;
              sBox.style.filter = 'progid:DXImageTransform.Microsoft.Blur(PixelRadius=' + pxRad + ', MakeShadow=false, ShadowOpacity=' + sOpacity + ')';
              sBox.style.zIndex = -(i + 1);
              sBox.innerHTML = sNode;
              if(getCompStyle(elm).display == 'inline') {
                elm.style.display = 'inline-block';
              }
              if(!(getCompStyle(elm).position == 'absolute' || getCompStyle(elm).position == 'fixed')) {
                elm.style.position = 'relative';
                ieVersion == 7 && (elm.style.top = getCompStyle(elm).paddingTop);
              }
              if(getCompStyle(elm).backgroundColor != 'transparent' || getCompStyle(elm).backgroundImage != 'none') {
                getCompStyle(elm).zIndex != ('auto' || null) ? (sBox.style.zIndex = elm.style.zIndex) : (elm.style.zIndex = sBox.style.zIndex = -1);
              }
              if(aBg && aBg.tagName.toLowerCase() != 'body') {
                elm.style.zIndex = 1; sBox.style.zIndex = -1;
              }
              ieVersion == 7 && getCompStyle(elm).lineHeight.match(/^([0-9\.]+)(em|ex|px|cm|mm|in|pt|pc|%)?$/) && (elm.style.minHeight = !RegExp.$2 ? convUnitToPx(RegExp.$1 + 'em', elm) : RegExp.$2 == '%' ? convUnitToPx((RegExp.$1 / 100) + 'em', elm) : convUnitToPx(RegExp.$1 + RegExp.$2, elm));
              elm.appendChild(sBox);
              if(sObj.onHover) {
                sBox.style.visibility = 'hidden';
                mOver = elm.getAttribute('onmouseover') || '';
                mOut = elm.getAttribute('onmouseout') || '';
                mOver != '' && !mOver.match(/;$/) && (mOver += ';');
                mOut != '' && !mOut.match(/;$/) && (mOut += ';');
                mOver += ("showElm('" + sBox.id + "');");
                mOut += ("hideElm('" + sBox.id + "');");
                if(hArr.length > 0) {
                  for(j = 0, k = hArr.length; j < k; j++) {
                    var hElm = document.getElementById(hArr[j]);
                    if(hElm) {
                      mOver += ("hideElm('" + hElm.id + "');");
                      mOut += ("showElm('" + hElm.id + "');");
                    }
                  }
                }
                elm.setAttribute('onmouseover', removeDupFunc(mOver));
                elm.setAttribute('onmouseout', removeDupFunc(mOut));
              }
              setShadowNodeColor(document.getElementById(sBox.id));
            }
          }
        }
      }
    };
    return this.each(function() {
      setShadow(this);
    });
  };
})(jQuery);

$().ready(function() {
  if(ieVersion >= 7 && ieVersion <= 9) {
    var ieShadowSettings = function() {
      var sArr = [];
      sArr = cssShadowValues();
      //  自動的にスタイルシートからtext-shadow値を読み込みます
      //  読み込ませたくない場合は上記1行（sArr = cssShadowValues();）をコメントアウトのこと
      //  Gets text-shadow values from stylesheets automatically.
      //  If you don't want to do so, comment out the line above (sArr = cssShadowValues();).
      var arr = [
      //  ここにtext-shadowを適用させるセレクタの配列と影の値を記述
      //  セレクタ毎に「カンマ区切り」で配列を追加（カンマを忘れるとエラー発生）
      //  Write your shadow settings here, like below.
      //  { sel : 'h1', shadow : '2px 2px 2px gray' },
      //  { sel : 'em', shadow : '1px 1px 1px rgb(0, 100, 100)' }
        { sel : '.c1', shadow : '0 0 1px #007CBA' },
        { sel : '.c2', shadow : '0 0 1px #999' }
      ];
      return sArr.concat(arr);
    };
    var cssShadowValues = function() {
      var getCssValues = function(prop) {
        var sReg = prop.match(/(\-)/) ? prop.replace(RegExp.$1, '\\\-') : prop;
        sReg += '\\s*:\\s*([0-9a-zA-Z\\s\\-\\+\\*\\\&#\\.\\(\\)%\\,\\!\\"\\\'\\>\\<\\\\]+);?';
        var getCssRules = function(sSheet) {
          for(var arr = [], sRules = sSheet.cssRules || sSheet.rules, i = 0, l = sRules.length; i < l; i++) {
            if(sRules[i].type) {
              sRules[i].type == 3 && (arr = arr.concat(getCssRules(sRules[i].styleSheet)));
              sRules[i].type == 4 && sRules[i].media.mediaText.match(/all|screen/) && (arr = arr.concat(getCssRules(sRules[i])));
              sRules[i].type == 1 && sRules[i].style.cssText.match(sReg) && (arr[arr.length] = { sel : sRules[i].selectorText, prop : prop, val : RegExp.$1 });
            }
            else {
              var sText = sRules[i].style.cssText || sRules[i].cssText;
              sText.match(sReg) && (arr[arr.length] = { sel : sRules[i].selectorText, prop : prop, val : RegExp.$1 });
            }
          }
          return arr;
        };
        if(document.styleSheets) {
          for(var arr = [], sArr = document.styleSheets, i = 0, l = sArr.length; i < l; i++) {
            if(isMSIE && ieVersion < 9 && sArr[i].imports) {
              for(var iArr = sArr[i].imports, j = 0, k = iArr.length; j < k; j++) {
                iArr[j] != undefined && (arr = arr.concat(getCssRules(iArr[j])));
              }
            }
            arr = arr.concat(getCssRules(sArr[i]));
          }
        }
        for(var aTag = document.getElementsByTagName('*'), oId = cNum(), i = 0, l = aTag.length; i < l; i++) {
          if(aTag[i].style != null && aTag[i].style.cssText.match(sReg)) {
            aTag[i].id == '' && (aTag[i].id = 'objId' + oId, oId++);
            arr[arr.length] = { sel : '#' + aTag[i].id, prop : prop, val : RegExp.$1 };
          }
        }
        return arr;
      }
      for(var arr = [], sArr = getCssValues('text-shadow'), revReg = /^(#[0-9a-fA-F]{3,6})\s+([0-9a-zA-Z\s\-\.\(\)%\,\!]+)$/, i = 0, l = sArr.length; i < l; i++) {
        arr[arr.length] = { sel : sArr[i].sel, shadow : sArr[i].val.match(revReg) ? RegExp.$2 + ' ' + RegExp.$1 : sArr[i].val };
      }
      return arr;
    };
    for(var arr = ieShadowSettings(), i = 0, l = arr.length; i < l; i++) {
      for(var sArr = arr[i].sel.split(/\s*,\s*/), j = 0, k = sArr.length; j < k; j++) {
        var sObj = { sValue : arr[i].shadow, onHover : sArr[j].match(/:hover/) ? true : false, hasImp : arr[i].shadow.match(/important/) ? true : false };
        sObj.onHover && (sArr[j] = sArr[j].replace(/:hover/, ''));
        $(sArr[j]).textShadowForMSIE(sObj);
      }
    }
  }
});