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content / browser / renderer_host / page_factory.h [blame]
// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_RENDERER_HOST_PAGE_FACTORY_H_
#define CONTENT_BROWSER_RENDERER_HOST_PAGE_FACTORY_H_
#include <stdint.h>
#include "content/browser/renderer_host/browsing_context_state.h"
#include "content/browser/renderer_host/page_impl.h"
#include "content/common/content_export.h"
namespace content {
class RenderFrameHostImpl;
class PageDelegate;
// A factory for creating Page. There is a global factory function that can be
// installed for the purposes of testing to provide a specialized Page class.
class PageFactory {
public:
// Creates a Page using the currently registered factory, or the default one
// if no factory is registered. Ownership of the returned pointer will be
// passed to the caller.
static std::unique_ptr<PageImpl> Create(RenderFrameHostImpl& rfh,
PageDelegate& delegate);
PageFactory(const PageFactory&) = delete;
PageFactory& operator=(const PageFactory&) = delete;
// Returns true if there is currently a globally-registered factory.
static bool has_factory() { return !!factory_; }
protected:
PageFactory() = default;
virtual ~PageFactory() = default;
// You can derive from this class and specify an implementation for this
// function to create a different kind of Page for testing.
virtual std::unique_ptr<PageImpl> CreatePage(RenderFrameHostImpl& rfh,
PageDelegate& delegate) = 0;
// Registers your factory to be called when new Page are created.
// We have only one global factory, so there must be no factory registered
// before the call. This class does NOT take ownership of the pointer.
CONTENT_EXPORT static void RegisterFactory(PageFactory* factory);
// Unregister the previously registered factory. With no factory registered,
// the default Page will be created.
CONTENT_EXPORT static void UnregisterFactory();
private:
// The current globally registered factory. This is NULL when we should
// create the default Page.
CONTENT_EXPORT static PageFactory* factory_;
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_PAGE_FACTORY_H_