The Tor Browser / file comparison
comparison: widget/gtk/nsPSPrinters.cpp
widget/gtk/nsPSPrinters.cpp
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
deleted
inserted
replaced
| -1:000000000000 | 0:1655838b4065 |
|---|---|
| 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 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #include "nscore.h" | |
| 8 #include "nsCUPSShim.h" | |
| 9 #include "nsIServiceManager.h" | |
| 10 #include "nsPSPrinters.h" | |
| 11 #include "nsReadableUtils.h" // StringBeginsWith() | |
| 12 #include "nsCUPSShim.h" | |
| 13 #include "mozilla/Preferences.h" | |
| 14 | |
| 15 #include "prlink.h" | |
| 16 #include "prenv.h" | |
| 17 #include "plstr.h" | |
| 18 | |
| 19 using namespace mozilla; | |
| 20 | |
| 21 #define NS_CUPS_PRINTER "CUPS/" | |
| 22 #define NS_CUPS_PRINTER_LEN (sizeof(NS_CUPS_PRINTER) - 1) | |
| 23 | |
| 24 /* dummy printer name for the gfx/src/ps driver */ | |
| 25 #define NS_POSTSCRIPT_DRIVER_NAME "PostScript/" | |
| 26 | |
| 27 nsCUPSShim gCupsShim; | |
| 28 | |
| 29 nsPSPrinterList::nsPSPrinterList() | |
| 30 { | |
| 31 // Should we try cups? | |
| 32 if (Preferences::GetBool("print.postscript.cups.enabled", true) && | |
| 33 !gCupsShim.IsInitialized()) { | |
| 34 gCupsShim.Init(); | |
| 35 } | |
| 36 } | |
| 37 | |
| 38 | |
| 39 /* Check whether the PostScript module has been disabled at runtime */ | |
| 40 bool | |
| 41 nsPSPrinterList::Enabled() | |
| 42 { | |
| 43 const char *val = PR_GetEnv("MOZILLA_POSTSCRIPT_ENABLED"); | |
| 44 if (val && (val[0] == '0' || !PL_strcasecmp(val, "false"))) | |
| 45 return false; | |
| 46 | |
| 47 // is the PS module enabled? | |
| 48 return Preferences::GetBool("print.postscript.enabled", true); | |
| 49 } | |
| 50 | |
| 51 | |
| 52 /* Fetch a list of printers handled by the PostsScript module */ | |
| 53 void | |
| 54 nsPSPrinterList::GetPrinterList(nsTArray<nsCString>& aList) | |
| 55 { | |
| 56 aList.Clear(); | |
| 57 | |
| 58 // Query CUPS for a printer list. The default printer goes to the | |
| 59 // head of the output list; others are appended. | |
| 60 if (gCupsShim.IsInitialized()) { | |
| 61 cups_dest_t *dests; | |
| 62 | |
| 63 int num_dests = (gCupsShim.mCupsGetDests)(&dests); | |
| 64 if (num_dests) { | |
| 65 for (int i = 0; i < num_dests; i++) { | |
| 66 nsAutoCString fullName(NS_CUPS_PRINTER); | |
| 67 fullName.Append(dests[i].name); | |
| 68 if (dests[i].instance != nullptr) { | |
| 69 fullName.Append("/"); | |
| 70 fullName.Append(dests[i].instance); | |
| 71 } | |
| 72 if (dests[i].is_default) | |
| 73 aList.InsertElementAt(0, fullName); | |
| 74 else | |
| 75 aList.AppendElement(fullName); | |
| 76 } | |
| 77 } | |
| 78 (gCupsShim.mCupsFreeDests)(num_dests, dests); | |
| 79 } | |
| 80 | |
| 81 // Build the "classic" list of printers -- those accessed by running | |
| 82 // an opaque command. This list always contains a printer named "default". | |
| 83 // In addition, we look for either an environment variable | |
| 84 // MOZILLA_POSTSCRIPT_PRINTER_LIST or a preference setting | |
| 85 // print.printer_list, which contains a space-separated list of printer | |
| 86 // names. | |
| 87 aList.AppendElement( | |
| 88 NS_LITERAL_CSTRING(NS_POSTSCRIPT_DRIVER_NAME "default")); | |
| 89 | |
| 90 nsAutoCString list(PR_GetEnv("MOZILLA_POSTSCRIPT_PRINTER_LIST")); | |
| 91 if (list.IsEmpty()) { | |
| 92 list = Preferences::GetCString("print.printer_list"); | |
| 93 } | |
| 94 if (!list.IsEmpty()) { | |
| 95 // For each printer (except "default" which was already added), | |
| 96 // construct a string "PostScript/<name>" and append it to the list. | |
| 97 char *state; | |
| 98 | |
| 99 for (char *name = PL_strtok_r(list.BeginWriting(), " ", &state); | |
| 100 nullptr != name; | |
| 101 name = PL_strtok_r(nullptr, " ", &state) | |
| 102 ) { | |
| 103 if (0 != strcmp(name, "default")) { | |
| 104 nsAutoCString fullName(NS_POSTSCRIPT_DRIVER_NAME); | |
| 105 fullName.Append(name); | |
| 106 aList.AppendElement(fullName); | |
| 107 } | |
| 108 } | |
| 109 } | |
| 110 } | |
| 111 | |
| 112 | |
| 113 /* Identify the printer type */ | |
| 114 nsPSPrinterList::PrinterType | |
| 115 nsPSPrinterList::GetPrinterType(const nsACString& aName) | |
| 116 { | |
| 117 if (StringBeginsWith(aName, NS_LITERAL_CSTRING(NS_POSTSCRIPT_DRIVER_NAME))) | |
| 118 return kTypePS; | |
| 119 else if (StringBeginsWith(aName, NS_LITERAL_CSTRING(NS_CUPS_PRINTER))) | |
| 120 return kTypeCUPS; | |
| 121 else | |
| 122 return kTypeUnknown; | |
| 123 } |
