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.
5 #include "chrome/common/extensions/extension_icon_set.h"
7 #include "base/logging.h"
9 ExtensionIconSet::ExtensionIconSet() {}
11 ExtensionIconSet::~ExtensionIconSet() {}
13 void ExtensionIconSet::Clear() {
17 void ExtensionIconSet::Add(int size, const std::string& path) {
18 DCHECK(!path.empty() && path[0] != '/');
22 std::string ExtensionIconSet::Get(int size, MatchType match_type) const {
23 // The searches for MATCH_BIGGER and MATCH_SMALLER below rely on the fact that
24 // std::map is sorted. This is per the spec, so it should be safe to rely on.
25 if (match_type == MATCH_EXACTLY) {
26 IconMap::const_iterator result = map_.find(size);
27 return result == map_.end() ? std::string() : result->second;
28 } else if (match_type == MATCH_SMALLER) {
29 IconMap::const_reverse_iterator result = map_.rend();
30 for (IconMap::const_reverse_iterator iter = map_.rbegin();
31 iter != map_.rend(); ++iter) {
32 if (iter->first <= size) {
37 return result == map_.rend() ? std::string() : result->second;
39 DCHECK(match_type == MATCH_BIGGER);
40 IconMap::const_iterator result = map_.end();
41 for (IconMap::const_iterator iter = map_.begin(); iter != map_.end();
43 if (iter->first >= size) {
48 return result == map_.end() ? std::string() : result->second;
52 bool ExtensionIconSet::ContainsPath(const std::string& path) const {
53 return GetIconSizeFromPath(path) != 0;
56 int ExtensionIconSet::GetIconSizeFromPath(const std::string& path) const {
60 DCHECK(path[0] != '/') <<
61 "ExtensionIconSet stores icon paths without leading slash.";
63 for (IconMap::const_iterator iter = map_.begin(); iter != map_.end();
65 if (iter->second == path)