summaryrefslogtreecommitdiffstats
path: root/src/usr/local/www/themes/nervecenter/javascript/ie7/ie7-fixed.js
blob: 4321cdae73e6d9da9f21143eaf174b9087c87dd6 (plain)
1
2
/* IE7 version 0.7.3 (alpha) 2004/09/18 */
if(window.IE7)IE7.addModule("ie7-fixed",function(){var PERCENT=/^\d+%$/;CSSFixes.addRecalc("position\x5cs*:\x5cs*fixed",positionFixed);CSSFixes.addRecalc("background[\x5cw\x5cs-]*:[^};]*fixed",backgroundFixed);var body=document.body;var viewport$=(quirksMode)?"body":"documentElement";var viewport=eval(viewport$);function fixBackground(){if(body.currentStyle.backgroundAttachment!="fixed"){if(body.currentStyle.backgroundImage=="none"){body.runtimeStyle.backgroundImage="url("+location.protocol+")"}body.runtimeStyle.backgroundAttachment="fixed"}fixBackground=DUMMY};var ie7_tmp=tmpElement("img");function topFunction(leftFunction){return String(leftFunction).replace(/Left/g,"Top").replace(/left/g,"top").replace(/Width/g,"Height").replace(/X/g,"Y")};function backgroundFixed(element){if(element.currentStyle.backgroundAttachment!="fixed")return;if(!element.contains(body)){fixBackground();backgroundFixed[backgroundFixed.count++]=element;backgroundLeft(element);backgroundTop(element);backgroundPosition(element)}};backgroundFixed.count=0;function backgroundPosition(element){ie7_tmp.src=element.currentStyle.backgroundImage.slice(5,-2);var parentElement=(element.canHaveChildren)?element:element.parentElement;parentElement.appendChild(ie7_tmp);setOffsetLeft(element);setOffsetTop(element);parentElement.removeChild(ie7_tmp)};function backgroundLeft(element){element.style.backgroundPositionX=element.currentStyle.backgroundPositionX;if(!isFixed(element)){var expression="(parseInt(runtimeStyle.offsetLeft)+document."+viewport$+".scrollLeft)||0";element.runtimeStyle.setExpression("backgroundPositionX",expression)}};eval(topFunction(backgroundLeft));function setOffsetLeft(element){var propertyName=isFixed(element)?"backgroundPositionX":"offsetLeft";element.runtimeStyle[propertyName]=getOffsetLeft(element,element.style.backgroundPositionX)-element.getBoundingClientRect().left-element.clientLeft};eval(topFunction(setOffsetLeft));function isFixed(element){if(!element)return false;if(element.style.position=="fixed"||element.currentStyle.position=="fixed")return true;return arguments.callee(element.parentElement)};function getOffsetLeft(element,position){switch(position){case "left":case "top":return 0;case "right":case "bottom":return viewport.clientWidth-ie7_tmp.offsetWidth;case "center":return(viewport.clientWidth-ie7_tmp.offsetWidth)/2;default:if(PERCENT.test(position)){return parseInt((viewport.clientWidth-ie7_tmp.offsetWidth)*parseFloat(position)/100)}ie7_tmp.style.left=position;return ie7_tmp.offsetLeft}};eval(topFunction(getOffsetLeft));function positionFixed(element){if(element.currentStyle.position!="fixed")return;fixBackground();positionFixed[positionFixed.count++]=element;element.style.position="fixed";element.runtimeStyle.position="absolute";foregroundPosition(element)};positionFixed.count=0;function foregroundPosition(element,recalc){positionLeft(element,recalc);positionTop(element,recalc);if(!recalc||element.runtimeStyle.autoTop){if(parseInt(element.currentStyle.bottom)==0)element.runtimeStyle.screenTop++}};function positionLeft(element,recalc){if(!recalc&&PERCENT.test(element.currentStyle.width))element.runtimeStyle.fixWidth=element.currentStyle.width;if(element.runtimeStyle.fixWidth)element.runtimeStyle.width=parseInt(parseFloat(element.runtimeStyle.fixWidth)/100*viewport.clientWidth);if(recalc){if(!element.runtimeStyle.autoLeft)return}else{element.runtimeStyle.autoLeft=element.currentStyle.right!="auto"&&element.currentStyle.left=="auto"}element.runtimeStyle.left="";element.runtimeStyle.screenLeft=getScreenLeft(element);if(element.currentStyle.marginLeft!="auto"){element.parentElement.appendChild(ie7_tmp);ie7_tmp.style.left=element.currentStyle.marginLeft;element.runtimeStyle.screenLeft-=ie7_tmp.offsetLeft;element.parentElement.removeChild(ie7_tmp)}if(isFixed(element.offsetParent))element.runtimeStyle.pixelLeft=element.runtimeStyle.screenLeft;else if(!recalc)element.runtimeStyle.setExpression("pixelLeft","runtimeStyle.screenLeft+document."+viewport$+".scrollLeft")};eval(topFunction(positionLeft).replace(/right/g,"bottom").replace(/width/g,"height"));function getScreenLeft(element){var getScreenLeft=element.offsetLeft,nested=false;var fixed=isFixed(element.offsetParent)&&element.runtimeStyle.autoLeft;while(element=element.offsetParent){if(!fixed&&element.currentStyle.position!="static")nested=true;getScreenLeft+=element.offsetLeft*(nested?-1:1)}return getScreenLeft};eval(topFunction(getScreenLeft));function resize(){for(var i=0;i<backgroundFixed.count;i++)backgroundPosition(backgroundFixed[i]);for(i=0;i<positionFixed.count;i++)foregroundPosition(positionFixed[i],true);timer=0};var timer;addEventHandler(window,"onresize",function(){if(!timer)timer=setTimeout(resize,10)})});
OpenPOWER on IntegriCloud