001/** 002 * 003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved. 004 * 005 * This library is free software; you can redistribute it and/or 006 * modify it under the terms of the GNU Lesser General Public 007 * License as published by the Free Software Foundation; either 008 * version 2.1 of the License, or (at your option) any later version. 009 * 010 * This library is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013 * Lesser General Public License for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public 016 * License along with this library. If not, see <http://www.gnu.org/licenses/>. 017 * 018 **/ 019package lucee.runtime.tag; 020 021 022import java.io.IOException; 023 024import lucee.commons.lang.StringUtil; 025import lucee.runtime.PageContextImpl; 026import lucee.runtime.exp.ApplicationException; 027import lucee.runtime.exp.PageException; 028 029/** 030* Writes the text specified in the text attribute to the 'head' section of a generated HTML page. 031* The cfhtmlhead tag can be useful for embedding CSS code, or placing other HTML tags such, as 032* META, LINK, TITLE, or BASE in an HTML page header. 033*/ 034public final class HtmlHead extends HtmlHeadBodyBase { 035 036 public String getTagName() { 037 return "htmlhead"; 038 } 039 040 public void actionAppend() throws IOException, ApplicationException { 041 042 ((PageContextImpl) pageContext).getRootOut().appendHTMLHead(text); 043 } 044 045 public void actionWrite() throws IOException, ApplicationException { 046 047 ((PageContextImpl) pageContext).getRootOut().writeHTMLHead(text); 048 } 049 050 public void actionReset() throws IOException { 051 052 ((PageContextImpl) pageContext).getRootOut().resetHTMLHead(); 053 } 054 055 public void actionRead() throws PageException, IOException { 056 057 String str = ((PageContextImpl) pageContext).getRootOut().getHTMLHead(); 058 pageContext.setVariable(!StringUtil.isEmpty(variable,true) ? variable : "cfhtmlhead", str); 059 } 060 061 public void actionFlush() throws IOException { 062 063 ((PageContextImpl) pageContext).getRootOut().flushHTMLHead(); 064 } 065 066}