1 : /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /* ex: set tabstop=8 softtabstop=4 shiftwidth=4 expandtab: */
3 : /* ***** BEGIN LICENSE BLOCK *****
4 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 : *
6 : * The contents of this file are subject to the Mozilla Public License Version
7 : * 1.1 (the "License"); you may not use this file except in compliance with
8 : * the License. You may obtain a copy of the License at
9 : * http://www.mozilla.org/MPL/
10 : *
11 : * Software distributed under the License is distributed on an "AS IS" basis,
12 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13 : * for the specific language governing rights and limitations under the
14 : * License.
15 : *
16 : * The Original Code is the Mozilla PostScript driver printer list component.
17 : *
18 : * The Initial Developer of the Original Code is
19 : * Kenneth Herron <kherron+mozilla@fmailbox.com>
20 : * Portions created by the Initial Developer are Copyright (C) 2004
21 : * the Initial Developer. All Rights Reserved.
22 : *
23 : * Contributor(s):
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either the GNU General Public License Version 2 or later (the "GPL"), or
27 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 : * in which case the provisions of the GPL or the LGPL are applicable instead
29 : * of those above. If you wish to allow use of your version of this file only
30 : * under the terms of either the GPL or the LGPL, and not to allow others to
31 : * use your version of this file under the terms of the MPL, indicate your
32 : * decision by deleting the provisions above and replace them with the notice
33 : * and other provisions required by the GPL or the LGPL. If you do not delete
34 : * the provisions above, a recipient may use your version of this file under
35 : * the terms of any one of the MPL, the GPL or the LGPL.
36 : *
37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : #ifndef nsCUPSShim_h___
40 : #define nsCUPSShim_h___
41 :
42 : #include "prtypes.h"
43 :
44 : /* Various CUPS data types. We don't #include cups headers to avoid
45 : * requiring CUPS to be installed on the build host (and to avoid having
46 : * to test for CUPS in configure).
47 : */
48 : typedef struct /**** Printer Options ****/
49 : {
50 : char *name; /* Name of option */
51 : char *value; /* Value of option */
52 : } cups_option_t;
53 :
54 : typedef struct /**** Destination ****/
55 : {
56 : char *name, /* Printer or class name */
57 : *instance; /* Local instance name or NULL */
58 : int is_default; /* Is this printer the default? */
59 : int num_options; /* Number of options */
60 : cups_option_t *options; /* Options */
61 : } cups_dest_t;
62 :
63 : typedef cups_dest_t* (PR_CALLBACK *CupsGetDestType)(const char *printer,
64 : const char *instance,
65 : int num_dests,
66 : cups_dest_t *dests);
67 : typedef int (PR_CALLBACK *CupsGetDestsType)(cups_dest_t **dests);
68 : typedef int (PR_CALLBACK *CupsFreeDestsType)(int num_dests,
69 : cups_dest_t *dests);
70 : typedef int (PR_CALLBACK *CupsPrintFileType)(const char *printer,
71 : const char *filename,
72 : const char *title,
73 : int num_options,
74 : cups_option_t *options);
75 : typedef int (PR_CALLBACK *CupsTempFdType)(char *filename,
76 : int length);
77 : typedef int (PR_CALLBACK *CupsAddOptionType)(const char *name,
78 : const char *value,
79 : int num_options,
80 : cups_option_t **options);
81 :
82 : struct PRLibrary;
83 :
84 : /* Note: this class relies on static initialization. */
85 : class nsCUPSShim {
86 : public:
87 : /**
88 : * Initialize this object. Attempt to load the CUPS shared
89 : * library and find function pointers for the supported
90 : * functions (see below).
91 : * @return false if the shared library could not be loaded, or if
92 : * any of the functions could not be found.
93 : * true for successful initialization.
94 : */
95 : bool Init();
96 :
97 : /**
98 : * @return true if the object was initialized successfully.
99 : * false otherwise.
100 : */
101 0 : bool IsInitialized() { return nsnull != mCupsLib; }
102 :
103 : /* Function pointers for supported functions. These are only
104 : * valid after successful initialization.
105 : */
106 : CupsAddOptionType mCupsAddOption;
107 : CupsFreeDestsType mCupsFreeDests;
108 : CupsGetDestType mCupsGetDest;
109 : CupsGetDestsType mCupsGetDests;
110 : CupsPrintFileType mCupsPrintFile;
111 : CupsTempFdType mCupsTempFd;
112 :
113 : private:
114 : PRLibrary *mCupsLib;
115 : };
116 :
117 :
118 :
119 : #endif /* nsCUPSShim_h___ */
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