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// Copyright 2014 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 "extensions/common/extension_icon_set.h"
#include "base/files/file_path.h"
#include "base/logging.h"
#include "base/strings/string_util.h"
ExtensionIconSet::ExtensionIconSet() {}
ExtensionIconSet::ExtensionIconSet(const ExtensionIconSet& other) = default;
ExtensionIconSet::~ExtensionIconSet() {}
void ExtensionIconSet::Clear() {
map_.clear();
}
void ExtensionIconSet::Add(int size, const std::string& path) {
DCHECK(!path.empty() && path[0] != '/');
map_[size] = path;
}
const std::string& ExtensionIconSet::Get(int size, MatchType match_type) const {
// The searches for MATCH_BIGGER and MATCH_SMALLER below rely on the fact that
// std::map is sorted. This is per the spec, so it should be safe to rely on.
if (match_type == MATCH_EXACTLY) {
IconMap::const_iterator result = map_.find(size);
return result == map_.end() ? base::EmptyString() : result->second;
} else if (match_type == MATCH_SMALLER) {
IconMap::const_reverse_iterator result = map_.rend();
for (IconMap::const_reverse_iterator iter = map_.rbegin();
iter != map_.rend(); ++iter) {
if (iter->first <= size) {
result = iter;
break;
}
}
return result == map_.rend() ? base::EmptyString() : result->second;
} else {
DCHECK(match_type == MATCH_BIGGER);
IconMap::const_iterator result = map_.end();
for (IconMap::const_iterator iter = map_.begin(); iter != map_.end();
++iter) {
if (iter->first >= size) {
result = iter;
break;
}
}
return result == map_.end() ? base::EmptyString() : result->second;
}
}
bool ExtensionIconSet::ContainsPath(const std::string& path) const {
return GetIconSizeFromPath(path) != 0;
}
int ExtensionIconSet::GetIconSizeFromPath(const std::string& path) const {
if (path.empty())
return 0;
DCHECK_NE(path[0], '/') <<
"ExtensionIconSet stores icon paths without leading slash.";
for (IconMap::const_iterator iter = map_.begin(); iter != map_.end();
++iter) {
if (iter->second == path)
return iter->first;
}
return 0;
}
void ExtensionIconSet::GetPaths(std::set<base::FilePath>* paths) const {
CHECK(paths);
for (auto iter : map())
paths->insert(base::FilePath::FromUTF8Unsafe(iter.second));
}
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