1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/widget/gtk/nsCUPSShim.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,86 @@
1.4 +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* ex: set tabstop=8 softtabstop=4 shiftwidth=4 expandtab: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef nsCUPSShim_h___
1.11 +#define nsCUPSShim_h___
1.12 +
1.13 +
1.14 +/* Various CUPS data types. We don't #include cups headers to avoid
1.15 + * requiring CUPS to be installed on the build host (and to avoid having
1.16 + * to test for CUPS in configure).
1.17 + */
1.18 +typedef struct /**** Printer Options ****/
1.19 +{
1.20 + char *name; /* Name of option */
1.21 + char *value; /* Value of option */
1.22 +} cups_option_t;
1.23 +
1.24 +typedef struct /**** Destination ****/
1.25 +{
1.26 + char *name, /* Printer or class name */
1.27 + *instance; /* Local instance name or nullptr */
1.28 + int is_default; /* Is this printer the default? */
1.29 + int num_options; /* Number of options */
1.30 + cups_option_t *options; /* Options */
1.31 +} cups_dest_t;
1.32 +
1.33 +typedef cups_dest_t* (*CupsGetDestType)(const char *printer,
1.34 + const char *instance,
1.35 + int num_dests,
1.36 + cups_dest_t *dests);
1.37 +typedef int (*CupsGetDestsType)(cups_dest_t **dests);
1.38 +typedef int (*CupsFreeDestsType)(int num_dests,
1.39 + cups_dest_t *dests);
1.40 +typedef int (*CupsPrintFileType)(const char *printer,
1.41 + const char *filename,
1.42 + const char *title,
1.43 + int num_options,
1.44 + cups_option_t *options);
1.45 +typedef int (*CupsTempFdType)(char *filename,
1.46 + int length);
1.47 +typedef int (*CupsAddOptionType)(const char *name,
1.48 + const char *value,
1.49 + int num_options,
1.50 + cups_option_t **options);
1.51 +
1.52 +struct PRLibrary;
1.53 +
1.54 +/* Note: this class relies on static initialization. */
1.55 +class nsCUPSShim {
1.56 + public:
1.57 + /**
1.58 + * Initialize this object. Attempt to load the CUPS shared
1.59 + * library and find function pointers for the supported
1.60 + * functions (see below).
1.61 + * @return false if the shared library could not be loaded, or if
1.62 + * any of the functions could not be found.
1.63 + * true for successful initialization.
1.64 + */
1.65 + bool Init();
1.66 +
1.67 + /**
1.68 + * @return true if the object was initialized successfully.
1.69 + * false otherwise.
1.70 + */
1.71 + bool IsInitialized() { return nullptr != mCupsLib; }
1.72 +
1.73 + /* Function pointers for supported functions. These are only
1.74 + * valid after successful initialization.
1.75 + */
1.76 + CupsAddOptionType mCupsAddOption;
1.77 + CupsFreeDestsType mCupsFreeDests;
1.78 + CupsGetDestType mCupsGetDest;
1.79 + CupsGetDestsType mCupsGetDests;
1.80 + CupsPrintFileType mCupsPrintFile;
1.81 + CupsTempFdType mCupsTempFd;
1.82 +
1.83 + private:
1.84 + PRLibrary *mCupsLib;
1.85 +};
1.86 +
1.87 +
1.88 +
1.89 +#endif /* nsCUPSShim_h___ */
