content/public/common/manifest.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 CONTENT_PUBLIC_COMMON_MANIFEST_H_
   6 #define CONTENT_PUBLIC_COMMON_MANIFEST_H_
   7
   8 #include <vector>
   9
  10 #include "base/strings/nullable_string16.h"
  11 #include "content/common/content_export.h"
  12 #include "third_party/WebKit/public/platform/WebScreenOrientationLockType.h"
  13 #include "ui/gfx/geometry/size.h"
  14 #include "url/gurl.h"
  15
  16 namespace content {
  17
  18 // The Manifest structure is an internal representation of the Manifest file
  19 // described in the "Manifest for Web Application" document:
  20 // http://w3c.github.io/manifest/
  21 struct CONTENT_EXPORT Manifest {
  22   enum DisplayMode {
  23     DISPLAY_MODE_UNSPECIFIED,
  24     DISPLAY_MODE_FULLSCREEN,
  25     DISPLAY_MODE_STANDALONE,
  26     DISPLAY_MODE_MINIMAL_UI,
  27     DISPLAY_MODE_BROWSER
  28   };
  29
  30   // Structure representing an icon as per the Manifest specification, see:
  31   // http://w3c.github.io/manifest/#dfn-icon-object
  32   struct CONTENT_EXPORT Icon {
  33     Icon();
  34     ~Icon();
  35
  36     // MUST be a valid url. If an icon doesn't have a valid URL, it will not be
  37     // successfully parsed, thus will not be represented in the Manifest.
  38     GURL src;
  39
  40     // Null if the parsing failed or the field was not present. The type can be
  41     // any string and doesn't have to be a valid image MIME type at this point.
  42     // It is up to the consumer of the object to check if the type matches a
  43     // supported type.
  44     base::NullableString16 type;
  45
  46     // Default value is 1.0 if the value is missing or invalid.
  47     double density;
  48
  49     // Empty if the parsing failed, the field was not present or empty.
  50     // The special value "any" is represented by gfx::Size(0, 0).
  51     std::vector<gfx::Size> sizes;
  52
  53     // Default density. Set to 1.0.
  54     static const double kDefaultDensity;
  55   };
  56
  57   Manifest();
  58   ~Manifest();
  59
  60   // Returns whether this Manifest had no attribute set. A newly created
  61   // Manifest is always empty.
  62   bool IsEmpty() const;
  63
  64   // Null if the parsing failed or the field was not present.
  65   base::NullableString16 name;
  66
  67   // Null if the parsing failed or the field was not present.
  68   base::NullableString16 short_name;
  69
  70   // Empty if the parsing failed or the field was not present.
  71   GURL start_url;
  72
  73   // Set to DISPLAY_MODE_UNSPECIFIED if the parsing failed or the field was not
  74   // present.
  75   DisplayMode display;
  76
  77   // Set to blink::WebScreenOrientationLockDefault if the parsing failed or the
  78   // field was not present.
  79   blink::WebScreenOrientationLockType orientation;
  80
  81   // Empty if the parsing failed, the field was not present, empty or all the
  82   // icons inside the JSON array were invalid.
  83   std::vector<Icon> icons;
  84
  85   // This is a proprietary extension of the web Manifest, double-check that it
  86   // is okay to use this entry.
  87   // Null if parsing failed or the field was not present.
  88   base::NullableString16 gcm_sender_id;
  89
  90   // This is a proprietary extension of the web Manifest, double-check that it
  91   // is okay to use this entry.
  92   // False if parsing failed or the field was not present.
  93   bool gcm_user_visible_only;
  94
  95   // Maximum length for all the strings inside the Manifest when it is sent over
  96   // IPC. The renderer process should truncate the strings before sending the
  97   // Manifest and the browser process must do the same when receiving it.
  98   static const size_t kMaxIPCStringLength;
  99 };
 100
 101 } // namespace content
 102
 103 #endif  // CONTENT_PUBLIC_COMMON_MANIFEST_H_