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/browser/extension_function_registry.h"
6
7#include "base/memory/singleton.h"
8#include "extensions/browser/extension_function.h"
9#include "extensions/browser/extensions_browser_client.h"
10
11// static
12ExtensionFunctionRegistry* ExtensionFunctionRegistry::GetInstance() {
13  return Singleton<ExtensionFunctionRegistry>::get();
14}
15
16ExtensionFunctionRegistry::ExtensionFunctionRegistry() {
17  extensions::ExtensionsBrowserClient* client =
18      extensions::ExtensionsBrowserClient::Get();
19  if (client) {
20    client->RegisterExtensionFunctions(this);
21  }
22}
23
24ExtensionFunctionRegistry::~ExtensionFunctionRegistry() {}
25
26void ExtensionFunctionRegistry::GetAllNames(std::vector<std::string>* names) {
27  for (FactoryMap::iterator iter = factories_.begin(); iter != factories_.end();
28       ++iter) {
29    names->push_back(iter->first);
30  }
31}
32
33bool ExtensionFunctionRegistry::OverrideFunction(
34    const std::string& name,
35    ExtensionFunctionFactory factory) {
36  FactoryMap::iterator iter = factories_.find(name);
37  if (iter == factories_.end()) {
38    return false;
39  } else {
40    iter->second.factory_ = factory;
41    return true;
42  }
43}
44
45ExtensionFunction* ExtensionFunctionRegistry::NewFunction(
46    const std::string& name) {
47  FactoryMap::iterator iter = factories_.find(name);
48  if (iter == factories_.end()) {
49    return NULL;
50  }
51  ExtensionFunction* function = iter->second.factory_();
52  function->set_name(name);
53  function->set_histogram_value(iter->second.histogram_value_);
54  return function;
55}
56
57ExtensionFunctionRegistry::FactoryEntry::FactoryEntry()
58    : factory_(0), histogram_value_(extensions::functions::UNKNOWN) {}
59
60ExtensionFunctionRegistry::FactoryEntry::FactoryEntry(
61    ExtensionFunctionFactory factory,
62    extensions::functions::HistogramValue histogram_value)
63    : factory_(factory), histogram_value_(histogram_value) {}
64