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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_MINT_QUEUE_H_
#define CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_MINT_QUEUE_H_
#include <list>
#include <map>
#include <set>
#include "base/memory/raw_ptr.h"
#include "chrome/browser/extensions/api/identity/extension_token_key.h"
namespace extensions {
// getAuthToken requests are serialized to avoid excessive traffic to
// GAIA and to consolidate UI pop-ups. IdentityMintRequestQueue
// maitains a set of queues, one for each RequestKey.
//
// The queue calls StartMintToken on each Request when it reaches the
// head of the line.
//
// The queue does not own Requests. Request pointers must be valid
// until they are removed from the queue with RequestComplete or
// RequestCancel.
class IdentityMintRequestQueue {
public:
enum MintType {
MINT_TYPE_NONINTERACTIVE,
MINT_TYPE_INTERACTIVE
};
IdentityMintRequestQueue();
virtual ~IdentityMintRequestQueue();
class Request {
public:
virtual ~Request() = default;
virtual void StartMintToken(IdentityMintRequestQueue::MintType type) = 0;
};
// Adds a request to the queue specified by the token key.
void RequestStart(IdentityMintRequestQueue::MintType type,
const ExtensionTokenKey& key,
IdentityMintRequestQueue::Request* request);
// Removes a request from the queue specified by the token key.
void RequestComplete(IdentityMintRequestQueue::MintType type,
const ExtensionTokenKey& key,
IdentityMintRequestQueue::Request* request);
// Cancels a request. OK to call if `request` is not queued.
// Does *not* start a new request, even if the canceled request is at
// the head of the queue.
void RequestCancel(const ExtensionTokenKey& key,
IdentityMintRequestQueue::Request* request);
bool empty(IdentityMintRequestQueue::MintType type,
const ExtensionTokenKey& key);
private:
typedef std::list<raw_ptr<IdentityMintRequestQueue::Request, CtnExperimental>>
RequestQueue;
typedef std::map<const ExtensionTokenKey, RequestQueue> RequestQueueMap;
RequestQueueMap& GetRequestQueueMap(IdentityMintRequestQueue::MintType type);
void RunRequest(IdentityMintRequestQueue::MintType type,
RequestQueue& request_queue);
RequestQueueMap interactive_request_queue_map_;
RequestQueueMap noninteractive_request_queue_map_;
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_MINT_QUEUE_H_
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