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#include "extensions/common/manifest_handlers/icons_handler.h"
6
7#include "base/files/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 "extensions/common/constants.h"
14#include "extensions/common/extension.h"
15#include "extensions/common/file_util.h"
16#include "extensions/common/manifest_constants.h"
17#include "extensions/common/manifest_handler_helpers.h"
18#include "grit/extensions_strings.h"
19#include "ui/gfx/size.h"
20
21namespace extensions {
22
23namespace keys = manifest_keys;
24
25static base::LazyInstance<ExtensionIconSet> g_empty_icon_set =
26    LAZY_INSTANCE_INITIALIZER;
27
28// static
29const ExtensionIconSet& IconsInfo::GetIcons(const Extension* extension) {
30  IconsInfo* info = static_cast<IconsInfo*>(
31      extension->GetManifestData(keys::kIcons));
32  return info ? info->icons : g_empty_icon_set.Get();
33}
34
35// static
36ExtensionResource IconsInfo::GetIconResource(
37    const Extension* extension,
38    int size,
39    ExtensionIconSet::MatchType match_type) {
40  const std::string& path = GetIcons(extension).Get(size, match_type);
41  return path.empty() ? ExtensionResource() : extension->GetResource(path);
42}
43
44// static
45GURL IconsInfo::GetIconURL(const Extension* extension,
46                           int size,
47                           ExtensionIconSet::MatchType match_type) {
48  const std::string& path = GetIcons(extension).Get(size, match_type);
49  return path.empty() ? GURL() : extension->GetResourceURL(path);
50}
51
52IconsHandler::IconsHandler() {
53}
54
55IconsHandler::~IconsHandler() {
56}
57
58bool IconsHandler::Parse(Extension* extension, base::string16* error) {
59  scoped_ptr<IconsInfo> icons_info(new IconsInfo);
60  const base::DictionaryValue* icons_dict = NULL;
61  if (!extension->manifest()->GetDictionary(keys::kIcons, &icons_dict)) {
62    *error = base::ASCIIToUTF16(manifest_errors::kInvalidIcons);
63    return false;
64  }
65
66  if (!manifest_handler_helpers::LoadIconsFromDictionary(
67          icons_dict,
68          extension_misc::kExtensionIconSizes,
69          extension_misc::kNumExtensionIconSizes,
70          &icons_info->icons,
71          error)) {
72    return false;
73  }
74
75  extension->SetManifestData(keys::kIcons, icons_info.release());
76  return true;
77}
78
79bool IconsHandler::Validate(const Extension* extension,
80                            std::string* error,
81                            std::vector<InstallWarning>* warnings) const {
82  return file_util::ValidateExtensionIconSet(IconsInfo::GetIcons(extension),
83                                             extension,
84                                             IDS_EXTENSION_LOAD_ICON_FAILED,
85                                             error);
86}
87
88const std::vector<std::string> IconsHandler::Keys() const {
89  return SingleKey(keys::kIcons);
90}
91
92}  // namespace extensions
93