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      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 = 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
    112