| // Copyright 2013 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 "printing/printing_utils.h" |
| |
| #include <algorithm> |
| |
| #include "base/logging.h" |
| |
| #include "base/strings/utf_string_conversions.h" |
| #include "third_party/icu/source/common/unicode/uchar.h" |
| #include "ui/gfx/text_elider.h" |
| |
| namespace printing { |
| |
| namespace { |
| |
| const size_t kMaxDocumentTitleLength = 80; |
| |
| } // namespace |
| |
| base::string16 SimplifyDocumentTitleWithLength(const base::string16& title, |
| size_t length) { |
| base::string16 no_controls(title); |
| no_controls.erase( |
| std::remove_if(no_controls.begin(), no_controls.end(), &u_iscntrl), |
| no_controls.end()); |
| base::string16 result; |
| gfx::ElideString(no_controls, static_cast<int>(length), &result); |
| return result; |
| } |
| |
| base::string16 FormatDocumentTitleWithOwnerAndLength( |
| const base::string16& owner, |
| const base::string16& title, |
| size_t length) { |
| const base::string16 separator = base::ASCIIToUTF16(": "); |
| DCHECK(separator.size() < length); |
| |
| base::string16 short_title = |
| SimplifyDocumentTitleWithLength(owner, length - separator.size()); |
| short_title += separator; |
| if (short_title.size() < length) { |
| short_title += |
| SimplifyDocumentTitleWithLength(title, length - short_title.size()); |
| } |
| |
| return short_title; |
| } |
| |
| base::string16 SimplifyDocumentTitle(const base::string16& title) { |
| return SimplifyDocumentTitleWithLength(title, kMaxDocumentTitleLength); |
| } |
| |
| base::string16 FormatDocumentTitleWithOwner(const base::string16& owner, |
| const base::string16& title) { |
| return FormatDocumentTitleWithOwnerAndLength(owner, title, |
| kMaxDocumentTitleLength); |
| } |
| |
| } // namespace printing |