| // Copyright 2013 Google Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| // Author: mpalem@google.com (Maya Palem) |
| |
| #include "net/instaweb/rewriter/public/css_url_extractor.h" |
| |
| #include "net/instaweb/rewriter/public/css_tag_scanner.h" |
| #include "pagespeed/kernel/base/null_message_handler.h" |
| #include "pagespeed/kernel/base/null_writer.h" |
| #include "pagespeed/kernel/base/string_util.h" |
| |
| namespace net_instaweb { |
| |
| CssUrlExtractor::~CssUrlExtractor() { |
| } |
| |
| void CssUrlExtractor::ExtractUrl(const StringPiece& in_text, |
| StringVector* urls) { |
| // We dont care about the output, we just want the url string captured. |
| NullWriter out; |
| NullMessageHandler handler; |
| out_urls_ = urls; |
| CssTagScanner::TransformUrls(in_text, &out, this, &handler); |
| } |
| |
| CssTagScanner::Transformer::TransformStatus CssUrlExtractor::Transform( |
| GoogleString* str) { |
| if (!str->empty()) { |
| // Push the Url into the output vector |
| GoogleString* url = StringVectorAdd(out_urls_); |
| *url = *str; |
| } |
| return kNoChange; |
| } |
| |
| } // namespace net_instaweb |