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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "content/renderer/android/address_detector.h"
      6 
      7 #include <bitset>
      8 
      9 #include "base/strings/string_util.h"
     10 #include "base/strings/utf_string_conversions.h"
     11 #include "content/common/android/address_parser.h"
     12 #include "content/public/renderer/android_content_detection_prefixes.h"
     13 #include "net/base/escape.h"
     14 
     15 namespace {
     16 
     17 // Maximum text length to be searched for address detection.
     18 static const size_t kMaxAddressLength = 250;
     19 
     20 }  // anonymous namespace
     21 
     22 namespace content {
     23 
     24 AddressDetector::AddressDetector() {
     25 }
     26 
     27 AddressDetector::~AddressDetector() {
     28 }
     29 
     30 GURL AddressDetector::GetIntentURL(const std::string& content_text) {
     31   return GURL(kAddressPrefix +
     32       net::EscapeQueryParamValue(content_text, true));
     33 }
     34 
     35 size_t AddressDetector::GetMaximumContentLength() {
     36   return kMaxAddressLength;
     37 }
     38 
     39 std::string AddressDetector::GetContentText(const base::string16& text) {
     40   // Get the address and replace unicode bullets with commas.
     41   base::string16 address_16 = base::CollapseWhitespace(text, false);
     42   std::replace(address_16.begin(), address_16.end(),
     43       static_cast<base::char16>(0x2022), static_cast<base::char16>(','));
     44   return base::UTF16ToUTF8(address_16);
     45 }
     46 
     47 bool AddressDetector::FindContent(
     48     const base::string16::const_iterator& begin,
     49     const base::string16::const_iterator& end,
     50     size_t* start_pos,
     51     size_t* end_pos,
     52     std::string* content_text) {
     53   if (address_parser::FindAddress(begin, end, start_pos, end_pos)) {
     54     content_text->assign(
     55         GetContentText(base::string16(begin + *start_pos, begin + *end_pos)));
     56     return true;
     57   }
     58   return false;
     59 }
     60 
     61 }  // namespace content
     62