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// 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 <stddef.h>
#include <algorithm>
#include "base/logging.h"
#include "base/strings/string_util.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::ReplaceChars(no_controls, base::ASCIIToUTF16("\\"),
base::ASCIIToUTF16("_"), &no_controls);
base::string16 result;
gfx::ElideString(no_controls, 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_LT(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
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