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 "chrome/browser/autocomplete/url_prefix.h"
6
7#include "base/basictypes.h"
8#include "base/strings/string_util.h"
9#include "base/strings/utf_string_conversions.h"
10
11URLPrefix::URLPrefix(const string16& prefix, size_t num_components)
12    : prefix(prefix),
13      num_components(num_components) {
14}
15
16// static
17const URLPrefixes& URLPrefix::GetURLPrefixes() {
18  CR_DEFINE_STATIC_LOCAL(URLPrefixes, prefixes, ());
19  if (prefixes.empty()) {
20    prefixes.push_back(URLPrefix(ASCIIToUTF16("https://www."), 2));
21    prefixes.push_back(URLPrefix(ASCIIToUTF16("http://www."), 2));
22    prefixes.push_back(URLPrefix(ASCIIToUTF16("ftp://ftp."), 2));
23    prefixes.push_back(URLPrefix(ASCIIToUTF16("ftp://www."), 2));
24    prefixes.push_back(URLPrefix(ASCIIToUTF16("https://"), 1));
25    prefixes.push_back(URLPrefix(ASCIIToUTF16("http://"), 1));
26    prefixes.push_back(URLPrefix(ASCIIToUTF16("ftp://"), 1));
27    prefixes.push_back(URLPrefix(string16(), 0));
28  }
29  return prefixes;
30}
31
32// static
33bool URLPrefix::IsURLPrefix(const string16& prefix) {
34  const URLPrefixes& list = GetURLPrefixes();
35  for (URLPrefixes::const_iterator i = list.begin(); i != list.end(); ++i)
36    if (i->prefix == prefix)
37      return true;
38  return false;
39}
40
41// static
42const URLPrefix* URLPrefix::BestURLPrefix(const string16& text,
43                                          const string16& prefix_suffix) {
44  const URLPrefixes& list = GetURLPrefixes();
45  for (URLPrefixes::const_iterator i = list.begin(); i != list.end(); ++i)
46    if (StartsWith(text, i->prefix + prefix_suffix, false))
47      return &(*i);
48  return NULL;
49}
50