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// Copyright (c) 2009 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/common/extensions/extension_resource.h"
#include "base/file_path.h"
#include "base/file_util.h"
#include "base/string_util.h"
#include "chrome/browser/extensions/extension_l10n_util.h"
#include "googleurl/src/gurl.h"
#include "net/base/net_util.h"
ExtensionResource::ExtensionResource() {
}
ExtensionResource::ExtensionResource(const FilePath& extension_root,
const FilePath& relative_path)
: extension_root_(extension_root),
relative_path_(relative_path) {
}
const FilePath& ExtensionResource::GetFilePath() const {
if (extension_root_.empty() || relative_path_.empty()) {
DCHECK(full_resource_path_.empty());
return full_resource_path_;
}
// We've already checked, just return last value.
if (!full_resource_path_.empty())
return full_resource_path_;
full_resource_path_ = GetFilePath(extension_root_, relative_path_);
return full_resource_path_;
}
// Static version...
FilePath ExtensionResource::GetFilePath(const FilePath& extension_root,
const FilePath& relative_path) {
std::vector<FilePath> l10n_relative_paths;
extension_l10n_util::GetL10nRelativePaths(relative_path,
&l10n_relative_paths);
// Stat l10n file(s), and return new path if it exists.
for (size_t i = 0; i < l10n_relative_paths.size(); ++i) {
FilePath full_path;
if (extension_root.AppendAndResolveRelative(l10n_relative_paths[i],
&full_path) &&
extension_root.IsParent(full_path) &&
file_util::PathExists(full_path)) {
return full_path;
}
}
// Fall back to root resource.
FilePath full_path;
if (extension_root.AppendAndResolveRelative(relative_path, &full_path) &&
extension_root.IsParent(full_path)) {
return full_path;
}
return FilePath();
}
// Unittesting helpers.
FilePath::StringType ExtensionResource::NormalizeSeperators(
FilePath::StringType path) const {
#if defined(FILE_PATH_USES_WIN_SEPARATORS)
FilePath::StringType ret_val;
for (size_t i = 0; i < path.length(); i++) {
if (FilePath::IsSeparator(path[i]))
path[i] = FilePath::kSeparators[0];
}
#endif // FILE_PATH_USES_WIN_SEPARATORS
return path;
}
bool ExtensionResource::ComparePathWithDefault(const FilePath& path) const {
// Make sure we have a cached value to test against...
if (full_resource_path_.empty())
GetFilePath();
if (NormalizeSeperators(path.value()) ==
NormalizeSeperators(full_resource_path_.value())) {
return true;
} else {
return false;
}
}
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