12 lines
8.7 KiB
JavaScript
12 lines
8.7 KiB
JavaScript
/*
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Jquery Iframe Auto Height Plugin
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Version 1.2.5 (09.10.2013)
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Author : Ilker Guller (https://ilkerguller.com)
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Description: This plugin can get contents of iframe and set height of iframe automatically. Also it has cross-domain fix (*).
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Details: https://github.com/Sly777/Iframe-Height-Jquery-Plugin
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*/
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(function($){var uuid=0;var iframeOptions={resizeMaxTry:4,resizeWaitTime:50,minimumHeight:200,defaultHeight:3000,heightOffset:0,exceptPages:"",debugMode:false,visibilitybeforeload:false,blockCrossDomain:false,externalHeightName:"bodyHeight",onMessageFunctionName:"getHeight",domainName:"*",watcher:false,watcherTime:400};$.iframeHeight=function(el,options){var base=this;$.iframeHeight.resizeTimeout=null;$.iframeHeight.resizeCount=0;base.$el=$(el);base.el=el;base.$el.before("<div id='iframeHeight-Container-"+uuid+"' style='padding: 0; margin: 0; border: none; background-color: transparent;'></div>");base.$el.appendTo("#iframeHeight-Container-"+uuid);base.$container=$("#iframeHeight-Container-"+uuid);base.$el.data("iframeHeight",base);base.watcher=null;base.debug={FirstTime:true,Init:function(){if(!('console'in window))console={};'log info warn error dir clear'.replace(/\w+/g,function(f){if(!(f in console))console[f]=console.log||new Function})},Log:function(message){if(this.FirstTime&&this.FirstTime===true){this.Init();this.FirstTime=false}if(base.options.debugMode&&base.options.debugMode===true&&console&&(message!==null||message!=="")){console["log"]("Iframe Plugin : "+message)}},GetBrowserInfo:(function(pub){var matched,browserObj;var uaMatch=function(ua){ua=ua.toLowerCase();if(/*@cc_on/*@if(@_jscript_version<=5.6)1@else@*/0/*@end@*/){ua="msie 6.0"}var match=/(chrome)[ \/]([\w.]+)/.exec(ua)||/(webkit)[ \/]([\w.]+)/.exec(ua)||/(opera)(?:.*version|)[ \/]([\w.]+)/.exec(ua)||/(msie) ([\w.]+)/.exec(ua)||ua.indexOf("compatible")<0&&/(mozilla)(?:.*? rv:([\w.]+)|)/.exec(ua)||[];return{browserObj:match[1]||"",version:match[2]||"0"}};matched=uaMatch(navigator.userAgent);browserObj={chrome:false,safari:false,mozilla:false,msie:false,webkit:false};if(matched.browserObj){browserObj[matched.browserObj]=true;browserObj.version=matched.version}if(browserObj.chrome){browserObj.webkit=true}else if(browserObj.webkit){browserObj.safari=true}pub=browserObj;return pub}(this.GetBrowserInfo||{}))};var isThisCDI=function(){try{var contentHtml;if(base.debug.GetBrowserInfo.msie&&base.debug.GetBrowserInfo.version=="7.0"){contentHtml=base.$el.get(0).contentWindow.location.href}else{contentHtml=base.$el.get(0).contentDocument.location.href}base.debug.Log("This page is non-Cross Domain - "+contentHtml);return false}catch(err){base.debug.Log("This page is Cross Domain");return true}};base.resetIframe=function(){if(base.options.visibilitybeforeload&&!(base.debug.GetBrowserInfo.msie&&base.debug.GetBrowserInfo.version=="7.0"))base.$el.css("visibility","hidden");base.debug.Log("Old Height is "+base.$el.height()+"px");base.$el.css("height","").removeAttr("height");base.debug.Log("Reset iframe");base.debug.Log("Height is "+base.$el.height()+"px after reset")};base.resizeFromOutside=function(event){if(base.options.blockCrossDomain){base.debug.Log("Blocked cross domain fix");return false}if(typeof event==="undefined")return false;if(typeof event.data=="string"){if(event.data=="reset"){base.$el.css("height","").removeAttr("height")}else{if(!/^ifh*/.test(event.data))return false;if(typeof parseInt(event.data.substring(3))!="number")return false;var frameHeightPx=parseInt(event.data.substring(3))+parseInt(base.options.heightOffset);base.resetIframe();base.setIframeHeight(frameHeightPx)}}else{return false}return true};base.checkMessageEvent=function(){if(base.options.blockCrossDomain||(base.debug.GetBrowserInfo.msie&&base.debug.GetBrowserInfo.version=="7.0")){base.debug.Log("Blocked cross domain fix");return false}base.resetIframe();if(base.options.visibilitybeforeload&&!(base.debug.GetBrowserInfo.msie&&base.debug.GetBrowserInfo.version=="7.0"))base.$el.css("visibility","visible");if(window.addEventListener){window.addEventListener('message',base.resizeFromOutside,false)}else if(window.attachEvent){window.attachEvent('onmessage',base.resizeFromOutside)}if(!base.$el.id){base.$el.id="iframe-id-"+(++uuid)}var frame=document.getElementById(base.$el.attr("id"));var message=base.options.onMessageFunctionName;if(frame.contentWindow.postMessage){frame.contentWindow.postMessage(message,"*")}else{base.debug.Log("Your browser does not support the postMessage method!");return false}base.debug.Log("Cross Domain Iframe started");return true};var tryFixIframe=function(){if($.iframeHeight.resizeCount<=base.options.resizeMaxTry){$.iframeHeight.resizeCount++;$.iframeHeight.resizeTimeout=setTimeout($.iframeHeight.resizeIframe,base.options.resizeWaitTime);base.debug.Log($.iframeHeight.resizeCount+" time(s) tried")}else{clearTimeout($.iframeHeight.resizeTimeout);$.iframeHeight.resizeCount=0;base.debug.Log("set default height for iframe");base.setIframeHeight(base.options.defaultHeight+base.options.heightOffset)}};base.sendInfotoTop=function(){if(top.length>0&&typeof JSON!="undefined"){var data={};data[base.options.externalHeightName].value=$(document).height();var domain='*';data=JSON.stringify(data);top.postMessage(data,domain);base.debug.Log("sent info to top page");return false}return true};base.setIframeHeight=function(_height){base.$el.height(_height).css("height",_height);if(base.$el.data("iframeheight")!=_height)base.$container.height(_height).css("height",_height);if(base.options.visibilitybeforeload&&!(base.debug.GetBrowserInfo.msie&&base.debug.GetBrowserInfo.version=="7.0"))base.$el.css("visibility","visible");base.debug.Log("Now iframe height is "+_height+"px");base.$el.data("iframeheight",_height)};$.iframeHeight.resizeIframe=function(){base.resetIframe();if(isThisCDI()){base.$el.height(base.options.defaultHeight+base.options.heightOffset).css("height",base.options.defaultHeight+base.options.heightOffset);if(base.options.visibilitybeforeload&&!(base.debug.GetBrowserInfo.msie&&base.debug.GetBrowserInfo.version=="7.0"))base.$el.css("visibility","visible");base.checkMessageEvent()}else{if(base.$el.css("height")===base.options.minimumHeight+"px"){base.resetIframe()}if(base.$el.get(0).contentWindow.document.body!==null){base.debug.Log("This page has body info");var _pageHeight=$(base.$el.get(0).contentWindow.document).height();var _pageName=base.$el.get(0).contentWindow.document.location.pathname.substring(base.$el.get(0).contentWindow.document.location.pathname.lastIndexOf('/')+1).toLowerCase();base.debug.Log("page height : "+_pageHeight+"px || page name : "+_pageName);if((_pageHeight<=base.options.minimumHeight&&base.options.exceptPages.indexOf(_pageName)==-1)){tryFixIframe()}else if(_pageHeight>base.options.minimumHeight&&base.options.exceptPages.indexOf(_pageName)==-1){base.setIframeHeight(_pageHeight+base.options.heightOffset)}}else{base.debug.Log("This page has not body info");tryFixIframe()}}};this.$el.bind("updateIframe",function(){$.iframeHeight.resizeIframe();base.debug.Log("Updated Iframe Manually")});this.$el.bind("killWatcher",function(){window.clearInterval(base.watcher);base.debug.Log("Killed Watcher")});base.init=function(){base.options=$.extend({},$.iframeHeight.defaultOptions,options);if(base.options.watcher==true)base.options.blockCrossDomain=true;base.debug.Log(base.options);if(base.$el.get(0).tagName===undefined||base.$el.get(0).tagName.toLowerCase()!=="iframe"){base.debug.Log("This element is not iframe!");return false}$.iframeHeight.resizeIframe();base.$el.load(function(){$.iframeHeight.resizeIframe()});if(base.options.watcher){base.watcher=setInterval(function(){$.iframeHeight.resizeIframe();base.debug.Log("Checked Iframe")},base.options.watcherTime)}return true};base.init()};$.iframeHeight.defaultOptions=iframeOptions;$.fn.iframeHeight=function(options){return this.each(function(){(new $.iframeHeight(this,options))})};$.iframeHeightExternal=function(){if(arguments.length===1){if($.isPlainObject(arguments[0])){iframeOptions=arguments[0]}}if(window.addEventListener){window.addEventListener("message",OnMessage,false)}else if(window.attachEvent){window.attachEvent("onmessage",OnMessage)}function OnMessage(event){var _domain;if('domain'in event){_domain=event.domain}if('origin'in event){_domain=event.origin}if(iframeOptions.domainName!=="*"){if(_domain!==iframeOptions.domainName){$.iframeHeight.debug.Log("It's not same domain. Blocked!");return}}if(event.data==iframeOptions.onMessageFunctionName){var message="ifh"+$(document).height();event.source.postMessage(message,event.origin)}}return{update:function(){this.reset();window.__domainname=iframeOptions.domainName;setTimeout(function(){var message="ifh"+$(document).height();parent.postMessage(message,window.__domainname)},90)},reset:function(){parent.postMessage("reset",iframeOptions.domainName)}}}})(jQuery);
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