print_job_manager.h revision c407dc5cd9bdc5668497f21b26b09d988ab439de 
1// Copyright (c) 2006-2008 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#ifndef CHROME_BROWSER_PRINTING_PRINT_JOB_MANAGER_H_
6#define CHROME_BROWSER_PRINTING_PRINT_JOB_MANAGER_H_
7
8#include <string>
9#include <vector>
10
11#include "base/lock.h"
12#include "base/ref_counted.h"
13#include "chrome/common/notification_registrar.h"
14
15namespace printing {
16
17class JobEventDetails;
18class PrintedDocument;
19class PrintJob;
20class PrintedPage;
21class PrinterQuery;
22
23class PrintJobManager : public NotificationObserver {
24 public:
25  PrintJobManager();
26  ~PrintJobManager();
27
28  // On browser quit, we should wait to have the print job finished.
29  void OnQuit();
30
31  // Queues a semi-initialized worker thread. Can be called from any thread.
32  // Current use case is queuing from the I/O thread.
33  // TODO(maruel):  Have them vanish after a timeout (~5 minutes?)
34  void QueuePrinterQuery(PrinterQuery* job);
35
36  // Pops a queued PrintJobWorkerOwner object that was previously queued. Can be
37  // called from any thread. Current use case is poping from the browser thread.
38  void PopPrinterQuery(int document_cookie, scoped_refptr<PrinterQuery>* job);
39
40  // NotificationObserver
41  virtual void Observe(NotificationType type,
42                       const NotificationSource& source,
43                       const NotificationDetails& details);
44
45 private:
46  typedef std::vector<scoped_refptr<PrintJob> > PrintJobs;
47  typedef std::vector<scoped_refptr<PrinterQuery> > PrinterQueries;
48
49  // Processes a NOTIFY_PRINT_JOB_EVENT notification.
50  void OnPrintJobEvent(PrintJob* print_job,
51                       const JobEventDetails& event_details);
52
53  NotificationRegistrar registrar_;
54
55  // Used to serialize access to queued_workers_.
56  Lock lock_;
57
58  PrinterQueries queued_queries_;
59
60  // Current print jobs that are active.
61  PrintJobs current_jobs_;
62
63  DISALLOW_COPY_AND_ASSIGN(PrintJobManager);
64};
65
66}  // namespace printing
67
68#endif  // CHROME_BROWSER_PRINTING_PRINT_JOB_MANAGER_H_
69