extensions/common/extension_icon_set.h

   1 // Copyright 2014 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 EXTENSIONS_COMMON_EXTENSION_ICON_SET_H_
   6 #define EXTENSIONS_COMMON_EXTENSION_ICON_SET_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 // Represents the set of icons for an extension.
  12 class ExtensionIconSet {
  13  public:
  14   // Get an icon from the set, optionally falling back to a smaller or bigger
  15   // size. MatchType is exclusive (do not OR them together).
  16   enum MatchType {
  17     MATCH_EXACTLY,
  18     MATCH_BIGGER,
  19     MATCH_SMALLER
  20   };
  21
  22   // Access to the underlying map from icon size->{path, bitmap}.
  23   typedef std::map<int, std::string> IconMap;
  24
  25   ExtensionIconSet();
  26   ~ExtensionIconSet();
  27
  28   const IconMap& map() const { return map_; }
  29   bool empty() const { return map_.empty(); }
  30
  31   // Remove all icons from the set.
  32   void Clear();
  33
  34   // Add an icon path to the set. If a path for the specified size is already
  35   // present, it is overwritten.
  36   void Add(int size, const std::string& path);
  37
  38   // Gets path value of the icon found when searching for |size| using
  39   // |mathc_type|.
  40   const std::string& Get(int size, MatchType match_type) const;
  41
  42   // Returns true iff the set contains the specified path.
  43   bool ContainsPath(const std::string& path) const;
  44
  45   // Returns icon size if the set contains the specified path or 0 if not found.
  46   int GetIconSizeFromPath(const std::string& path) const;
  47
  48  private:
  49   IconMap map_;
  50 };
  51
  52 #endif  // EXTENSIONS_COMMON_EXTENSION_ICON_SET_H_