1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/autocomplete/builtin_provider.h"
#include <algorithm>
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/autocomplete/autocomplete_input.h"
#include "chrome/browser/autocomplete/history_provider.h"
#include "chrome/common/net/url_fixer_upper.h"
#include "chrome/common/url_constants.h"
namespace {
#if !defined(OS_ANDROID)
// This list should be kept in sync with chrome/common/url_constants.h.
// Only include useful sub-pages, confirmation alerts are not useful.
const char* const kChromeSettingsSubPages[] = {
chrome::kAutofillSubPage,
chrome::kClearBrowserDataSubPage,
chrome::kContentSettingsSubPage,
chrome::kContentSettingsExceptionsSubPage,
chrome::kImportDataSubPage,
chrome::kLanguageOptionsSubPage,
chrome::kPasswordManagerSubPage,
chrome::kResetProfileSettingsSubPage,
chrome::kSearchEnginesSubPage,
chrome::kSyncSetupSubPage,
#if defined(OS_CHROMEOS)
chrome::kInternetOptionsSubPage,
#endif
};
#endif // !defined(OS_ANDROID)
} // namespace
const int BuiltinProvider::kRelevance = 860;
BuiltinProvider::BuiltinProvider(AutocompleteProviderListener* listener,
Profile* profile)
: AutocompleteProvider(listener, profile,
AutocompleteProvider::TYPE_BUILTIN) {
std::vector<std::string> builtins(
chrome::kChromeHostURLs,
chrome::kChromeHostURLs + chrome::kNumberOfChromeHostURLs);
std::sort(builtins.begin(), builtins.end());
for (std::vector<std::string>::iterator i(builtins.begin());
i != builtins.end(); ++i)
builtins_.push_back(base::ASCIIToUTF16(*i));
#if !defined(OS_ANDROID)
base::string16 settings(base::ASCIIToUTF16(chrome::kChromeUISettingsHost) +
base::ASCIIToUTF16("/"));
for (size_t i = 0; i < arraysize(kChromeSettingsSubPages); i++) {
builtins_.push_back(
settings + base::ASCIIToUTF16(kChromeSettingsSubPages[i]));
}
#endif
}
void BuiltinProvider::Start(const AutocompleteInput& input,
bool minimal_changes) {
matches_.clear();
if ((input.type() == AutocompleteInput::INVALID) ||
(input.type() == AutocompleteInput::FORCED_QUERY) ||
(input.type() == AutocompleteInput::QUERY))
return;
const size_t kAboutSchemeLength = strlen(content::kAboutScheme);
const base::string16 kAbout = base::ASCIIToUTF16(content::kAboutScheme) +
base::ASCIIToUTF16(url::kStandardSchemeSeparator);
const base::string16 kChrome = base::ASCIIToUTF16(content::kChromeUIScheme) +
base::ASCIIToUTF16(url::kStandardSchemeSeparator);
const int kUrl = ACMatchClassification::URL;
const int kMatch = kUrl | ACMatchClassification::MATCH;
base::string16 text = input.text();
bool starting_chrome = StartsWith(kChrome, text, false);
if (starting_chrome || StartsWith(kAbout, text, false)) {
ACMatchClassifications styles;
// Highlight the input portion matching "chrome://"; or if the user has
// input "about:" (with optional slashes), highlight the whole "chrome://".
bool highlight = starting_chrome || text.length() > kAboutSchemeLength;
styles.push_back(ACMatchClassification(0, highlight ? kMatch : kUrl));
size_t offset = starting_chrome ? text.length() : kChrome.length();
if (highlight)
styles.push_back(ACMatchClassification(offset, kUrl));
// Include some common builtin chrome URLs as the user types the scheme.
AddMatch(base::ASCIIToUTF16(chrome::kChromeUIChromeURLsURL),
base::string16(), styles);
#if !defined(OS_ANDROID)
AddMatch(base::ASCIIToUTF16(chrome::kChromeUISettingsURL),
base::string16(), styles);
#endif
AddMatch(base::ASCIIToUTF16(chrome::kChromeUIVersionURL),
base::string16(), styles);
} else {
// Match input about: or chrome: URL input against builtin chrome URLs.
GURL url = URLFixerUpper::FixupURL(base::UTF16ToUTF8(text), std::string());
// BuiltinProvider doesn't know how to suggest valid ?query or #fragment
// extensions to chrome: URLs.
if (url.SchemeIs(content::kChromeUIScheme) && url.has_host() &&
!url.has_query() && !url.has_ref()) {
// Suggest about:blank for substrings, taking URL fixup into account.
// Chrome does not support trailing slashes or paths for about:blank.
const base::string16 blank_host = base::ASCIIToUTF16("blank");
const base::string16 host = base::UTF8ToUTF16(url.host());
if (StartsWith(text, base::ASCIIToUTF16(content::kAboutScheme), false) &&
StartsWith(blank_host, host, false) && (url.path().length() <= 1) &&
!EndsWith(text, base::ASCIIToUTF16("/"), false)) {
ACMatchClassifications styles;
styles.push_back(ACMatchClassification(0, kMatch));
base::string16 match = base::ASCIIToUTF16(content::kAboutBlankURL);
// Measure the length of the matching host after the "about:" scheme.
const size_t corrected_length = kAboutSchemeLength + 1 + host.length();
if (blank_host.length() > host.length())
styles.push_back(ACMatchClassification(corrected_length, kUrl));
AddMatch(match, match.substr(corrected_length), styles);
}
// Include the path for sub-pages (e.g. "chrome://settings/browser").
base::string16 host_and_path = base::UTF8ToUTF16(url.host() + url.path());
base::TrimString(host_and_path, base::ASCIIToUTF16("/"), &host_and_path);
size_t match_length = kChrome.length() + host_and_path.length();
for (Builtins::const_iterator i(builtins_.begin());
(i != builtins_.end()) && (matches_.size() < kMaxMatches); ++i) {
if (StartsWith(*i, host_and_path, false)) {
ACMatchClassifications styles;
// Highlight the "chrome://" scheme, even for input "about:foo".
styles.push_back(ACMatchClassification(0, kMatch));
base::string16 match_string = kChrome + *i;
if (match_string.length() > match_length)
styles.push_back(ACMatchClassification(match_length, kUrl));
AddMatch(match_string, match_string.substr(match_length), styles);
}
}
}
}
for (size_t i = 0; i < matches_.size(); ++i)
matches_[i].relevance = kRelevance + matches_.size() - (i + 1);
if (!HistoryProvider::PreventInlineAutocomplete(input) &&
(matches_.size() == 1)) {
// If there's only one possible completion of the user's input and
// allowing completions is okay, give the match a high enough score to
// allow it to beat url-what-you-typed and be inlined.
matches_[0].relevance = 1250;
matches_[0].allowed_to_be_default_match = true;
}
}
BuiltinProvider::~BuiltinProvider() {}
void BuiltinProvider::AddMatch(const base::string16& match_string,
const base::string16& inline_completion,
const ACMatchClassifications& styles) {
AutocompleteMatch match(this, kRelevance, false,
AutocompleteMatchType::NAVSUGGEST);
match.fill_into_edit = match_string;
match.inline_autocompletion = inline_completion;
match.destination_url = GURL(match_string);
match.contents = match_string;
match.contents_class = styles;
matches_.push_back(match);
}
|
