| // Copyright 2015 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 "components/favicon_base/large_icon_url_parser.h" |
| |
| #include "base/logging.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/string_split.h" |
| #include "base/strings/string_util.h" |
| #include "third_party/skia/include/utils/SkParse.h" |
| #include "ui/gfx/favicon_size.h" |
| |
| LargeIconUrlParser::LargeIconUrlParser() : size_in_pixels_(48) { |
| } |
| |
| LargeIconUrlParser::~LargeIconUrlParser() { |
| } |
| |
| bool LargeIconUrlParser::Parse(base::StringPiece path) { |
| if (path.empty()) |
| return false; |
| |
| size_t slash = path.find("/", 0); // |path| does not start with '/'. |
| if (slash == base::StringPiece::npos) |
| return false; |
| base::StringPiece size_str = path.substr(0, slash); |
| // Disallow empty, non-numeric, or non-positive sizes. |
| if (size_str.empty() || |
| !base::StringToInt(size_str, &size_in_pixels_) || |
| size_in_pixels_ <= 0) |
| return false; |
| |
| // Need to store the index of the URL field, so Instant Extended can translate |
| // large icon URLs using advanced parameters. |
| // Example: |
| // "chrome-search://large-icon/48/<renderer-id>/<most-visited-id>" |
| // would be translated to: |
| // "chrome-search://large-icon/48/<most-visited-item-with-given-id>". |
| path_index_ = slash + 1; |
| url_string_ = path.substr(path_index_).as_string(); |
| return true; |
| } |