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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_WEBUI_WEB_UI_FACTORY_H_
#define CONTENT_BROWSER_WEBUI_WEB_UI_FACTORY_H_
#pragma once
#include "content/browser/webui/web_ui.h"
#include "content/common/content_export.h"
class TabContents;
class GURL;
namespace content {
class BrowserContext;
// Interface for an object which controls which URLs are considered WebUI URLs
// and creates WebUI instances for given URLs.
class CONTENT_EXPORT WebUIFactory {
public:
// Returns a WebUI instance for the given URL, or NULL if the URL doesn't
// correspond to a WebUI.
virtual WebUI* CreateWebUIForURL(TabContents* source,
const GURL& url) const = 0;
// Gets the WebUI type for the given URL. This will return kNoWebUI if the
// corresponding call to CreateWebUIForURL would fail, or something non-NULL
// if CreateWebUIForURL would succeed.
virtual WebUI::TypeID GetWebUIType(content::BrowserContext* browser_context,
const GURL& url) const = 0;
// Shorthand for the above, but returns a simple yes/no.
virtual bool UseWebUIForURL(content::BrowserContext* browser_context,
const GURL& url) const = 0;
// Returns true if the url has a scheme for WebUI. This differs from the above
// in that it only checks the scheme; it is faster and can be used to
// determine security policy.
virtual bool HasWebUIScheme(const GURL& url) const = 0;
// Returns true if the given URL can be loaded by Web UI system. This allows
// URLs with WebUI types (as above) and also URLs that can be loaded by
// normal tabs such as javascript: URLs or about:hang.
virtual bool IsURLAcceptableForWebUI(content::BrowserContext* browser_context,
const GURL& url) const = 0;
virtual ~WebUIFactory() {}
// Helper function to streamline retrieval of the current WebUIFactory. Only
// to be used in content/. Guaranteed to return non-NULL.
static WebUIFactory* Get();
};
} // namespace content
#endif // CONTENT_BROWSER_WEBUI_WEB_UI_FACTORY_H_
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