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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/webui/web_ui_controller_factory_registry.h"
#include <stddef.h>
#include "base/lazy_instance.h"
#include "content/browser/renderer_host/debug_urls.h"
#include "content/public/browser/web_ui_controller.h"
#include "content/public/common/content_client.h"
#include "content/public/common/url_constants.h"
#include "content/public/common/url_utils.h"
#include "third_party/blink/public/common/chrome_debug_urls.h"
#include "url/gurl.h"
namespace content {
base::LazyInstance<std::vector<WebUIControllerFactory*>>::DestructorAtExit
g_web_ui_controller_factories = LAZY_INSTANCE_INITIALIZER;
void WebUIControllerFactory::RegisterFactory(WebUIControllerFactory* factory) {
g_web_ui_controller_factories.Pointer()->push_back(factory);
}
int WebUIControllerFactory::GetNumRegisteredFactoriesForTesting() {
if (!g_web_ui_controller_factories.IsCreated())
return 0;
return g_web_ui_controller_factories.Get().size();
}
WebUIControllerFactoryRegistry* WebUIControllerFactoryRegistry::GetInstance() {
return base::Singleton<WebUIControllerFactoryRegistry>::get();
}
std::unique_ptr<WebUIController>
WebUIControllerFactoryRegistry::CreateWebUIControllerForURL(WebUI* web_ui,
const GURL& url) {
std::vector<WebUIControllerFactory*>& factories =
g_web_ui_controller_factories.Get();
for (WebUIControllerFactory* factory : factories) {
auto controller = factory->CreateWebUIControllerForURL(web_ui, url);
if (controller)
return controller;
}
return nullptr;
}
WebUI::TypeID WebUIControllerFactoryRegistry::GetWebUIType(
BrowserContext* browser_context,
const GURL& url) {
std::vector<WebUIControllerFactory*>* factories =
g_web_ui_controller_factories.Pointer();
for (size_t i = 0; i < factories->size(); ++i) {
WebUI::TypeID type = (*factories)[i]->GetWebUIType(browser_context, url);
if (type != WebUI::kNoWebUI)
return type;
}
return WebUI::kNoWebUI;
}
bool WebUIControllerFactoryRegistry::UseWebUIForURL(
BrowserContext* browser_context,
const GURL& url) {
std::vector<WebUIControllerFactory*>* factories =
g_web_ui_controller_factories.Pointer();
for (size_t i = 0; i < factories->size(); ++i) {
if ((*factories)[i]->UseWebUIForURL(browser_context, url))
return true;
}
return false;
}
bool WebUIControllerFactoryRegistry::IsURLAcceptableForWebUI(
BrowserContext* browser_context,
const GURL& url) {
return UseWebUIForURL(browser_context, url) ||
// It's possible to load about:blank in a Web UI renderer.
// See http://crbug.com/42547
url.spec() == url::kAboutBlankURL ||
// javascript: and debug URLs like chrome://kill are allowed.
blink::IsRendererDebugURL(url);
}
WebUIControllerFactoryRegistry::WebUIControllerFactoryRegistry() = default;
WebUIControllerFactoryRegistry::~WebUIControllerFactoryRegistry() = default;
void WebUIControllerFactory::UnregisterFactoryForTesting(
WebUIControllerFactory* factory) {
std::vector<WebUIControllerFactory*>* factories =
g_web_ui_controller_factories.Pointer();
for (size_t i = 0; i < factories->size(); ++i) {
if ((*factories)[i] == factory) {
factories->erase(factories->begin() + i);
return;
}
}
NOTREACHED() << "Tried to unregister a factory but it wasn't found. Tip: if "
"trying to unregister a global like "
"ChromeWebUIControllerFactory::GetInstance(), create the "
"ScopedWebUIControllerFactoryRegistration in the "
"setup method instead of the constructor, to ensure the "
"global exists.";
}
} // namespace content
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