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 "content/browser/webui/web_ui_controller_factory_registry.h"
6
7#include "base/lazy_instance.h"
8#include "content/browser/frame_host/debug_urls.h"
9#include "content/public/common/url_constants.h"
10#include "url/gurl.h"
11
12namespace content {
13
14base::LazyInstance<std::vector<WebUIControllerFactory*> > g_factories =
15    LAZY_INSTANCE_INITIALIZER;
16
17void WebUIControllerFactory::RegisterFactory(WebUIControllerFactory* factory) {
18  g_factories.Pointer()->push_back(factory);
19}
20
21void WebUIControllerFactory::UnregisterFactoryForTesting(
22    WebUIControllerFactory* factory) {
23  std::vector<WebUIControllerFactory*>* factories = g_factories.Pointer();
24  for (size_t i = 0; i < factories->size(); ++i) {
25    if ((*factories)[i] == factory) {
26      factories->erase(factories->begin() + i);
27      return;
28    }
29  }
30  NOTREACHED() << "Tried to unregister a factory but it wasn't found";
31}
32
33WebUIControllerFactoryRegistry* WebUIControllerFactoryRegistry::GetInstance() {
34  return Singleton<WebUIControllerFactoryRegistry>::get();
35}
36
37WebUIController* WebUIControllerFactoryRegistry::CreateWebUIControllerForURL(
38    WebUI* web_ui, const GURL& url) const {
39  std::vector<WebUIControllerFactory*>* factories = g_factories.Pointer();
40  for (size_t i = 0; i < factories->size(); ++i) {
41    WebUIController* controller = (*factories)[i]->CreateWebUIControllerForURL(
42        web_ui, url);
43    if (controller)
44      return controller;
45  }
46  return NULL;
47}
48
49WebUI::TypeID WebUIControllerFactoryRegistry::GetWebUIType(
50    BrowserContext* browser_context, const GURL& url) const {
51  std::vector<WebUIControllerFactory*>* factories = g_factories.Pointer();
52  for (size_t i = 0; i < factories->size(); ++i) {
53    WebUI::TypeID type = (*factories)[i]->GetWebUIType(browser_context, url);
54    if (type != WebUI::kNoWebUI)
55      return type;
56  }
57  return WebUI::kNoWebUI;
58}
59
60bool WebUIControllerFactoryRegistry::UseWebUIForURL(
61    BrowserContext* browser_context, const GURL& url) const {
62  std::vector<WebUIControllerFactory*>* factories = g_factories.Pointer();
63  for (size_t i = 0; i < factories->size(); ++i) {
64    if ((*factories)[i]->UseWebUIForURL(browser_context, url))
65      return true;
66  }
67  return false;
68}
69
70bool WebUIControllerFactoryRegistry::UseWebUIBindingsForURL(
71    BrowserContext* browser_context, const GURL& url) const {
72  std::vector<WebUIControllerFactory*>* factories = g_factories.Pointer();
73  for (size_t i = 0; i < factories->size(); ++i) {
74    if ((*factories)[i]->UseWebUIBindingsForURL(browser_context, url))
75      return true;
76  }
77  return false;
78}
79
80bool WebUIControllerFactoryRegistry::IsURLAcceptableForWebUI(
81    BrowserContext* browser_context,
82    const GURL& url) const {
83  return UseWebUIForURL(browser_context, url) ||
84      // It's possible to load about:blank in a Web UI renderer.
85      // See http://crbug.com/42547
86      url.spec() == url::kAboutBlankURL ||
87      // javascript: and debug URLs like chrome://kill are allowed.
88      IsRendererDebugURL(url);
89}
90
91WebUIControllerFactoryRegistry::WebUIControllerFactoryRegistry() {
92}
93
94WebUIControllerFactoryRegistry::~WebUIControllerFactoryRegistry() {
95}
96
97}  // namespace content
98