components/search_provider_logos/logo_common.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 COMPONENTS_SEARCH_PROVIDER_LOGOS_LOGO_COMMON_H_
   6 #define COMPONENTS_SEARCH_PROVIDER_LOGOS_LOGO_COMMON_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/ref_counted.h"
  11 #include "base/memory/ref_counted_memory.h"
  12 #include "base/time/time.h"
  13 #include "third_party/skia/include/core/SkBitmap.h"
  14
  15 namespace search_provider_logos {
  16
  17 // The maximum number of milliseconds that a logo can be cached.
  18 extern const int64 kMaxTimeToLiveMS;
  19
  20 struct LogoMetadata {
  21   LogoMetadata();
  22   ~LogoMetadata();
  23
  24   // For use by the client ----------------------------------------------------
  25
  26   // The URL to load when the logo is clicked.
  27   std::string on_click_url;
  28   // The accessibility text for the logo.
  29   std::string alt_text;
  30   // The mime type of the logo image.
  31   std::string mime_type;
  32
  33   // For use by LogoTracker ---------------------------------------------------
  34
  35   // The URL from which the logo was downloaded (without the fingerprint param).
  36   std::string source_url;
  37   // A fingerprint (i.e. hash) identifying the logo. Used when revalidating the
  38   // logo with the server.
  39   std::string fingerprint;
  40   // Whether the logo can be shown optimistically after it's expired while a
  41   // fresh logo is being downloaded.
  42   bool can_show_after_expiration;
  43   // When the logo expires. After this time, the logo will not be used and will
  44   // be deleted.
  45   base::Time expiration_time;
  46 };
  47
  48 struct EncodedLogo {
  49   EncodedLogo();
  50   ~EncodedLogo();
  51
  52   // The jpeg- or png-encoded image.
  53   scoped_refptr<base::RefCountedString> encoded_image;
  54   // Metadata about the logo.
  55   LogoMetadata metadata;
  56 };
  57
  58 struct Logo {
  59   Logo();
  60   ~Logo();
  61
  62   // The logo image.
  63   SkBitmap image;
  64   // Metadata about the logo.
  65   LogoMetadata metadata;
  66 };
  67
  68 }  // namespace search_provider_logos
  69
  70 #endif  // COMPONENTS_SEARCH_PROVIDER_LOGOS_LOGO_COMMON_H_