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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "chrome/common/favicon/large_icon_url_parser.h" |
| 6 |
| 7 #include "base/logging.h" |
| 8 #include "base/strings/string_number_conversions.h" |
| 9 #include "base/strings/string_split.h" |
| 10 #include "base/strings/string_util.h" |
| 11 #include "third_party/skia/include/utils/SkParse.h" |
| 12 #include "ui/gfx/favicon_size.h" |
| 13 |
| 14 LargeIconUrlParser::LargeIconUrlParser() : size_in_pixels_(48) { |
| 15 } |
| 16 |
| 17 LargeIconUrlParser::~LargeIconUrlParser() { |
| 18 } |
| 19 |
| 20 bool LargeIconUrlParser::Parse(base::StringPiece path) { |
| 21 if (path.empty()) |
| 22 return false; |
| 23 |
| 24 size_t slash = path.find("/", 0); // |path| does not start with '/'. |
| 25 if (slash == base::StringPiece::npos) |
| 26 return false; |
| 27 base::StringPiece size_str = path.substr(0, slash); |
| 28 // Disallow empty, non-numeric, or non-positive sizes. |
| 29 if (size_str.empty() || |
| 30 !base::StringToInt(size_str, &size_in_pixels_) || |
| 31 size_in_pixels_ <= 0) |
| 32 return false; |
| 33 |
| 34 // Need to store the index of the URL field, so Instant Extended can translate |
| 35 // large icon URLs using advanced parameters. |
| 36 // Example: |
| 37 // "chrome-search://large-icon/48/<renderer-id>/<most-visited-id>" |
| 38 // would be translated to: |
| 39 // "chrome-search://large-icon/48/<most-visited-item-with-given-id>". |
| 40 path_index_ = slash + 1; |
| 41 url_string_ = path.substr(path_index_).as_string(); |
| 42 return true; |
| 43 } |
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