applyLayout

def applyLayout = { attrs, body ->
        if(!groovyPagesTemplateEngine) throw new IllegalStateException("Property [groovyPagesTemplateEngine] must be set!")
        def oldPage = getPage()
        def contentType = attrs.contentType ? attrs.contentType : "text/html"
        def content = ""
        GSPSitemeshPage gspSiteMeshPage = null
        if(attrs.url) {
        	content = new URL(attrs.url).text
        } else {
        	def oldGspSiteMeshPage=request.getAttribute(GrailsPageFilter.GSP_SITEMESH_PAGE)
        	try {
        		gspSiteMeshPage = new GSPSitemeshPage()
        		request.setAttribute(GrailsPageFilter.GSP_SITEMESH_PAGE, gspSiteMeshPage)
		        if(attrs.view || attrs.template) {
		            content = render(attrs)
		        }
		        else {
		        	def bodyClosure = GroovyPage.createOutputCapturingClosure(this, body, webRequest, true)
		            content = bodyClosure()
		        }
        		if(content instanceof StreamCharBuffer) {
        			gspSiteMeshPage.setPageBuffer(content)
        		} else if (content != null) {
        			def buf=new StreamCharBuffer()
        			buf.writer.write(content)
        			gspSiteMeshPage.setPageBuffer(buf)
        		}
        	} finally {
          		 if(oldGspSiteMeshPage != null) {
        			 request.setAttribute(GrailsPageFilter.GSP_SITEMESH_PAGE, oldGspSiteMeshPage)
        		 }        		
        	}
        }
        def page = null
        if(gspSiteMeshPage != null && gspSiteMeshPage.isUsed()) {
        	page = gspSiteMeshPage
        } else {
            def parser = getFactory().getPageParser(contentType)
        	page = parser.parse(content.toCharArray())
        }
        attrs.params?.each { k,v->
            page.addProperty(k,v)
        }
        def decoratorMapper = getFactory().getDecoratorMapper()
        if(decoratorMapper) {
            def d = decoratorMapper.getNamedDecorator(request, attrs.name)
            if(d && d.page) {
                try {
                    request[PAGE] = page
                  	def t = groovyPagesTemplateEngine.createTemplate(d.getPage())
                    def w = t.make()
                    w.writeTo(out)
                } finally {
                    request[PAGE] = oldPage
                }
            }
        }
    }
    private Factory getFactory() {
        return FactoryHolder.getFactory()
    }