chrome/common/extensions/manifest_handlers/icons_handler.cc

   1 // Copyright (c) 2013 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 #include "chrome/common/extensions/manifest_handlers/icons_handler.h"
   6
   7 #include "base/file_util.h"
   8 #include "base/lazy_instance.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/strings/string_number_conversions.h"
  11 #include "base/strings/utf_string_conversions.h"
  12 #include "base/values.h"
  13 #include "chrome/common/extensions/extension_constants.h"
  14 #include "chrome/common/extensions/extension_file_util.h"
  15 #include "chrome/common/extensions/manifest_handler_helpers.h"
  16 #include "extensions/common/extension.h"
  17 #include "extensions/common/manifest_constants.h"
  18 #include "grit/generated_resources.h"
  19 #include "grit/theme_resources.h"
  20 #include "third_party/skia/include/core/SkBitmap.h"
  21 #include "ui/base/resource/resource_bundle.h"
  22 #include "ui/gfx/size.h"
  23
  24 namespace extensions {
  25
  26 namespace keys = manifest_keys;
  27
  28 static base::LazyInstance<ExtensionIconSet> g_empty_icon_set =
  29     LAZY_INSTANCE_INITIALIZER;
  30
  31 const int IconsInfo::kPageActionIconMaxSize = 19;
  32 const int IconsInfo::kBrowserActionIconMaxSize = 19;
  33
  34 // static
  35 const ExtensionIconSet& IconsInfo::GetIcons(const Extension* extension) {
  36   IconsInfo* info = static_cast<IconsInfo*>(
  37       extension->GetManifestData(keys::kIcons));
  38   return info ? info->icons : g_empty_icon_set.Get();
  39 }
  40
  41 // static
  42 const gfx::ImageSkia& IconsInfo::GetDefaultAppIcon() {
  43   return *ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
  44       IDR_APP_DEFAULT_ICON);
  45 }
  46
  47 // static
  48 const gfx::ImageSkia& IconsInfo::GetDefaultExtensionIcon() {
  49   return *ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
  50       IDR_EXTENSION_DEFAULT_ICON);
  51 }
  52
  53 // static
  54 ExtensionResource IconsInfo::GetIconResource(
  55     const Extension* extension,
  56     int size,
  57     ExtensionIconSet::MatchType match_type) {
  58   std::string path = GetIcons(extension).Get(size, match_type);
  59   return path.empty() ? ExtensionResource() : extension->GetResource(path);
  60 }
  61
  62 // static
  63 GURL IconsInfo::GetIconURL(const Extension* extension,
  64                            int size,
  65                            ExtensionIconSet::MatchType match_type) {
  66   std::string path = GetIcons(extension).Get(size, match_type);
  67   return path.empty() ? GURL() : extension->GetResourceURL(path);
  68 }
  69
  70 IconsHandler::IconsHandler() {
  71 }
  72
  73 IconsHandler::~IconsHandler() {
  74 }
  75
  76 bool IconsHandler::Parse(Extension* extension, base::string16* error) {
  77   scoped_ptr<IconsInfo> icons_info(new IconsInfo);
  78   const base::DictionaryValue* icons_dict = NULL;
  79   if (!extension->manifest()->GetDictionary(keys::kIcons, &icons_dict)) {
  80     *error = base::ASCIIToUTF16(manifest_errors::kInvalidIcons);
  81     return false;
  82   }
  83
  84   if (!manifest_handler_helpers::LoadIconsFromDictionary(
  85           icons_dict,
  86           extension_misc::kExtensionIconSizes,
  87           extension_misc::kNumExtensionIconSizes,
  88           &icons_info->icons,
  89           error)) {
  90     return false;
  91   }
  92
  93   extension->SetManifestData(keys::kIcons, icons_info.release());
  94   return true;
  95 }
  96
  97 bool IconsHandler::Validate(const Extension* extension,
  98                             std::string* error,
  99                             std::vector<InstallWarning>* warnings) const {
 100   return extension_file_util::ValidateExtensionIconSet(
 101       IconsInfo::GetIcons(extension),
 102       extension,
 103       IDS_EXTENSION_LOAD_ICON_FAILED,
 104       error);
 105 }
 106
 107 const std::vector<std::string> IconsHandler::Keys() const {
 108   return SingleKey(keys::kIcons);
 109 }
 110
 111 }  // namespace extensions