content/browser/webui/web_ui_controller_factory_registry.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 "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
  12 namespace content {
  13
  14 base::LazyInstance<std::vector<WebUIControllerFactory*> > g_factories =
  15     LAZY_INSTANCE_INITIALIZER;
  16
  17 void WebUIControllerFactory::RegisterFactory(WebUIControllerFactory* factory) {
  18   g_factories.Pointer()->push_back(factory);
  19 }
  20
  21 void 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
  33 WebUIControllerFactoryRegistry* WebUIControllerFactoryRegistry::GetInstance() {
  34   return Singleton<WebUIControllerFactoryRegistry>::get();
  35 }
  36
  37 WebUIController* 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
  49 WebUI::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
  60 bool 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
  70 bool 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
  80 bool 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
  91 WebUIControllerFactoryRegistry::WebUIControllerFactoryRegistry() {
  92 }
  93
  94 WebUIControllerFactoryRegistry::~WebUIControllerFactoryRegistry() {
  95 }
  96
  97 }  // namespace content