components/favicon_base/fallback_icon_url_parser.h

   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 #ifndef COMPONENTS_FAVICON_BASE_FALLBACK_ICON_URL_PARSER_H_
   6 #define COMPONENTS_FAVICON_BASE_FALLBACK_ICON_URL_PARSER_H_
   7
   8 #include <string>
   9
  10 #include "base/gtest_prod_util.h"
  11 #include "base/macros.h"
  12 #include "components/favicon_base/fallback_icon_style.h"
  13 #include "third_party/skia/include/core/SkColor.h"
  14
  15 namespace chrome {
  16
  17 class ParsedFallbackIconPath {
  18  public:
  19   ParsedFallbackIconPath();
  20   ~ParsedFallbackIconPath();
  21
  22   const std::string& url_string() const { return url_string_; }
  23
  24   int size_in_pixels() const { return size_in_pixels_; }
  25
  26   const favicon_base::FallbackIconStyle& style() const { return style_; }
  27
  28   size_t path_index() const { return path_index_; }
  29
  30   // Parses |path|, which should be in the format described at the top of the
  31   // file "chrome/browser/ui/webui/fallback_icon_source.h".
  32   bool Parse(const std::string& path);
  33
  34  private:
  35   // Parses |specs_str|, which should be the comma-separated value portion
  36   // in the format described at the top of the file
  37   // "chrome/browser/ui/webui/fallback_icon_source.h".
  38   static bool ParseSpecs(const std::string& specs_str,
  39                          int *size,
  40                          favicon_base::FallbackIconStyle* style);
  41
  42   // Helper to parse color string (e.g., "red", "#f00", "#aB0137"). On success,
  43   // returns true and writes te result to |*color|.
  44   static bool ParseColor(const std::string& color_str, SkColor* color);
  45
  46   friend class FallbackIconUrlParserTest;
  47   FRIEND_TEST_ALL_PREFIXES(FallbackIconUrlParserTest, ParseColorSuccess);
  48   FRIEND_TEST_ALL_PREFIXES(FallbackIconUrlParserTest, ParseColorFailure);
  49   FRIEND_TEST_ALL_PREFIXES(FallbackIconUrlParserTest, ParseSpecsEmpty);
  50   FRIEND_TEST_ALL_PREFIXES(FallbackIconUrlParserTest, ParseSpecsPartial);
  51   FRIEND_TEST_ALL_PREFIXES(FallbackIconUrlParserTest, ParseSpecsFull);
  52   FRIEND_TEST_ALL_PREFIXES(FallbackIconUrlParserTest, ParseSpecsFailure);
  53
  54   // The page URL string the fallback icon is requested for.
  55   std::string url_string_;
  56
  57   // The size of the requested fallback icon in pixels.
  58   int size_in_pixels_;
  59
  60   // Styling specifications of fallback icon.
  61   favicon_base::FallbackIconStyle style_;
  62
  63   // The index of the first character (relative to the path) where the the URL
  64   // from which the fallback icon is being requested is located.
  65   size_t path_index_;
  66
  67   DISALLOW_COPY_AND_ASSIGN(ParsedFallbackIconPath);
  68 };
  69
  70 }  // namespace chrome
  71
  72 #endif  // COMPONENTS_FAVICON_BASE_FALLBACK_ICON_URL_PARSER_H_