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/scalate-core/src/main/scala/org/fusesource/scalate/filter/CssFilter.scala

http://github.com/scalate/scalate
Scala | 69 lines | 21 code | 7 blank | 41 comment | 2 complexity | 69d64e53a686926935a7fce5aeb1ba50 MD5 | raw file
 1/**
 2 * Copyright (C) 2009-2011 the original author or authors.
 3 * See the notice.md file distributed with this work for additional
 4 * information regarding copyright ownership.
 5 *
 6 * Licensed under the Apache License, Version 2.0 (the "License");
 7 * you may not use this file except in compliance with the License.
 8 * You may obtain a copy of the License at
 9 *
10 *     http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18package org.fusesource.scalate.filter
19
20/**
21 * Copyright (C) 2009-2010 the original author or authors.
22 * See the notice.md file distributed with this work for additional
23 * information regarding copyright ownership.
24 *
25 * Licensed under the Apache License, Version 2.0 (the "License");
26 * you may not use this file except in compliance with the License.
27 * You may obtain a copy of the License at
28 *
29 *     http://www.apache.org/licenses/LICENSE-2.0
30 *
31 * Unless required by applicable law or agreed to in writing, software
32 * distributed under the License is distributed on an "AS IS" BASIS,
33 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
34 * See the License for the specific language governing permissions and
35 * limitations under the License.
36 */
37
38import org.fusesource.scalate._
39import org.fusesource.scalate.support.RenderHelper
40
41/**
42 * Surrounds the filtered text with <style> and CDATA tags.
43 *
44 * <p>Useful for including inline CSS.</p>
45 *
46 * @author <a href="http://hiramchirino.com">Hiram Chirino</a>
47 */
48object CssFilter extends Filter {
49
50  def filter(context: RenderContext, content: String) = {
51    lazy val css = RenderHelper.indent("    ", content)
52
53    if (useCData(context)) {
54      """<style type='text/css'>
55         |  /* <![CDATA[ */
56         |    """.stripMargin + css + """
57         |  /* ]]> */
58         |</style>""".stripMargin
59    } else {
60      """<style type='text/css'>
61         |  """.stripMargin + css + """
62         |</style>""".stripMargin
63    }
64  }
65
66  def useCData(context: RenderContext): Boolean =
67    context.wrapCssInCData
68
69}