| // 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/media_galleries/linux/mtp_device_object_enumerator.h" |
| |
| #include "base/logging.h" |
| |
| MTPDeviceObjectEnumerator::MTPDeviceObjectEnumerator( |
| const std::vector<MtpFileEntry>& entries) |
| : file_entries_(entries), |
| index_(0U), |
| is_index_ready_(false) { |
| } |
| |
| MTPDeviceObjectEnumerator::~MTPDeviceObjectEnumerator() { |
| } |
| |
| base::FilePath MTPDeviceObjectEnumerator::Next() { |
| if (IsIndexReadyAndInRange()) |
| ++index_; // Normal traversal. |
| else if (!is_index_ready_) |
| is_index_ready_ = true; // First time calling Next(). |
| |
| if (!HasMoreEntries()) |
| return base::FilePath(); |
| return base::FilePath(file_entries_[index_].file_name()); |
| } |
| |
| int64 MTPDeviceObjectEnumerator::Size() { |
| if (!IsIndexReadyAndInRange()) |
| return 0; |
| return file_entries_[index_].file_size(); |
| } |
| |
| bool MTPDeviceObjectEnumerator::IsDirectory() { |
| if (!IsIndexReadyAndInRange()) |
| return false; |
| return file_entries_[index_].file_type() == MtpFileEntry::FILE_TYPE_FOLDER; |
| } |
| |
| base::Time MTPDeviceObjectEnumerator::LastModifiedTime() { |
| if (!IsIndexReadyAndInRange()) |
| return base::Time(); |
| return base::Time::FromTimeT(file_entries_[index_].modification_time()); |
| } |
| |
| bool MTPDeviceObjectEnumerator::GetEntryId(uint32* entry_id) const { |
| DCHECK(entry_id); |
| if (!IsIndexReadyAndInRange()) |
| return false; |
| |
| *entry_id = file_entries_[index_].item_id(); |
| return true; |
| } |
| |
| bool MTPDeviceObjectEnumerator::HasMoreEntries() const { |
| return index_ < file_entries_.size(); |
| } |
| |
| bool MTPDeviceObjectEnumerator::IsIndexReadyAndInRange() const { |
| return is_index_ready_ && HasMoreEntries(); |
| } |