src/chrome/common/extensions/api/extension_action/page_action_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/api/extension_action/page_action_handler.h"
   6
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "base/values.h"
   9 #include "chrome/common/extensions/extension_constants.h"
  10 #include "chrome/grit/generated_resources.h"
  11 #include "extensions/common/extension.h"
  12 #include "extensions/common/file_util.h"
  13 #include "extensions/common/manifest_constants.h"
  14
  15 namespace extensions {
  16
  17 namespace keys = manifest_keys;
  18 namespace errors = manifest_errors;
  19
  20 PageActionHandler::PageActionHandler() {
  21 }
  22
  23 PageActionHandler::~PageActionHandler() {
  24 }
  25
  26 bool PageActionHandler::Parse(Extension* extension, base::string16* error) {
  27   scoped_ptr<ActionInfo> page_action_info;
  28   const base::DictionaryValue* page_action_value = NULL;
  29
  30   if (extension->manifest()->HasKey(keys::kPageActions)) {
  31     const base::ListValue* list_value = NULL;
  32     if (!extension->manifest()->GetList(keys::kPageActions, &list_value)) {
  33       *error = base::ASCIIToUTF16(errors::kInvalidPageActionsList);
  34       return false;
  35     }
  36
  37     size_t list_value_length = list_value->GetSize();
  38
  39     if (list_value_length == 0u) {
  40       // A list with zero items is allowed, and is equivalent to not having
  41       // a page_actions key in the manifest.  Don't set |page_action_value|.
  42     } else if (list_value_length == 1u) {
  43       if (!list_value->GetDictionary(0, &page_action_value)) {
  44         *error = base::ASCIIToUTF16(errors::kInvalidPageAction);
  45         return false;
  46       }
  47     } else {  // list_value_length > 1u.
  48       *error = base::ASCIIToUTF16(errors::kInvalidPageActionsListSize);
  49       return false;
  50     }
  51   } else if (extension->manifest()->HasKey(keys::kPageAction)) {
  52     if (!extension->manifest()->GetDictionary(keys::kPageAction,
  53                                               &page_action_value)) {
  54       *error = base::ASCIIToUTF16(errors::kInvalidPageAction);
  55       return false;
  56     }
  57   }
  58
  59   // An extension cannot have both browser and page actions.
  60   if (extension->manifest()->HasKey(keys::kBrowserAction)) {
  61     *error = base::ASCIIToUTF16(errors::kOneUISurfaceOnly);
  62     return false;
  63   }
  64
  65   // If page_action_value is not NULL, then there was a valid page action.
  66   if (page_action_value) {
  67     page_action_info = ActionInfo::Load(extension, page_action_value, error);
  68     if (!page_action_info)
  69       return false;  // Failed to parse page action definition.
  70   }
  71   ActionInfo::SetPageActionInfo(extension, page_action_info.release());
  72
  73   return true;
  74 }
  75
  76 bool PageActionHandler::Validate(const Extension* extension,
  77                                  std::string* error,
  78                                  std::vector<InstallWarning>* warnings) const {
  79   const extensions::ActionInfo* action =
  80       extensions::ActionInfo::GetPageActionInfo(extension);
  81   if (action && !action->default_icon.empty() &&
  82       !file_util::ValidateExtensionIconSet(
  83           action->default_icon,
  84           extension,
  85           IDS_EXTENSION_LOAD_ICON_FOR_PAGE_ACTION_FAILED,
  86           error)) {
  87     return false;
  88   }
  89   return true;
  90 }
  91
  92 const std::vector<std::string> PageActionHandler::Keys() const {
  93   std::vector<std::string> keys;
  94   keys.push_back(keys::kPageAction);
  95   keys.push_back(keys::kPageActions);
  96   return keys;
  97 }
  98
  99 }  // namespace extensions