The Tor Browser: widget/xpwidgets/nsPrintOptionsImpl.cpp@97036ab72558 (annotated)

widget/xpwidgets/nsPrintOptionsImpl.cpp@97036ab72558 (annotated)

widget/xpwidgets/nsPrintOptionsImpl.cpp

Tue, 06 Jan 2015 21:39:09 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Tue, 06 Jan 2015 21:39:09 +0100
branch: TOR_BUG_9701
changeset 8: 97036ab72558
permissions: -rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include "nsPrintOptionsImpl.h"
 #include "nsReadableUtils.h"
 #include "nsPrintSettingsImpl.h"
 #include "nsIDOMWindow.h"
 #include "nsIServiceManager.h"
 #include "nsIDialogParamBlock.h"
 #include "nsXPCOM.h"
 #include "nsISupportsPrimitives.h"
 #include "nsIWindowWatcher.h"
 #include "nsISupportsArray.h"
 #include "prprf.h"
 #include "nsIStringEnumerator.h"
 #include "nsISupportsPrimitives.h"
 #include "stdlib.h"
 #include "nsAutoPtr.h"
 #include "mozilla/Preferences.h"
 #include "nsPrintfCString.h"
 using namespace mozilla;
 NS_IMPL_ISUPPORTS(nsPrintOptions, nsIPrintOptions, nsIPrintSettingsService)
 // Pref Constants
 static const char kMarginTop[]       = "print_margin_top";
 static const char kMarginLeft[]      = "print_margin_left";
 static const char kMarginBottom[]    = "print_margin_bottom";
 static const char kMarginRight[]     = "print_margin_right";
 static const char kEdgeTop[]         = "print_edge_top";
 static const char kEdgeLeft[]        = "print_edge_left";
 static const char kEdgeBottom[]      = "print_edge_bottom";
 static const char kEdgeRight[]       = "print_edge_right";
 static const char kUnwriteableMarginTop[]    = "print_unwriteable_margin_top";
 static const char kUnwriteableMarginLeft[]   = "print_unwriteable_margin_left";
 static const char kUnwriteableMarginBottom[] = "print_unwriteable_margin_bottom";
 static const char kUnwriteableMarginRight[]  = "print_unwriteable_margin_right";
 // Prefs for Print Options
 static const char kPrintEvenPages[]       = "print_evenpages";
 static const char kPrintOddPages[]        = "print_oddpages";
 static const char kPrintHeaderStrLeft[]   = "print_headerleft";
 static const char kPrintHeaderStrCenter[] = "print_headercenter";
 static const char kPrintHeaderStrRight[]  = "print_headerright";
 static const char kPrintFooterStrLeft[]   = "print_footerleft";
 static const char kPrintFooterStrCenter[] = "print_footercenter";
 static const char kPrintFooterStrRight[]  = "print_footerright";
 // Additional Prefs
 static const char kPrintReversed[]      = "print_reversed";
 static const char kPrintInColor[]       = "print_in_color";
 static const char kPrintPaperName[]     = "print_paper_name";
 static const char kPrintPlexName[]      = "print_plex_name";
 static const char kPrintPaperSizeType[] = "print_paper_size_type";
 static const char kPrintPaperData[]     = "print_paper_data";
 static const char kPrintPaperSizeUnit[] = "print_paper_size_unit";
 static const char kPrintPaperWidth[]    = "print_paper_width";
 static const char kPrintPaperHeight[]   = "print_paper_height";
 static const char kPrintColorspace[]    = "print_colorspace";
 static const char kPrintResolutionName[]= "print_resolution_name";
 static const char kPrintDownloadFonts[] = "print_downloadfonts";
 static const char kPrintOrientation[]   = "print_orientation";
 static const char kPrintCommand[]       = "print_command";
 static const char kPrinterName[]        = "print_printer";
 static const char kPrintToFile[]        = "print_to_file";
 static const char kPrintToFileName[]    = "print_to_filename";
 static const char kPrintPageDelay[]     = "print_page_delay";
 static const char kPrintBGColors[]      = "print_bgcolor";
 static const char kPrintBGImages[]      = "print_bgimages";
 static const char kPrintShrinkToFit[]   = "print_shrink_to_fit";
 static const char kPrintScaling[]       = "print_scaling";
 static const char kPrintResolution[]    = "print_resolution";
 static const char kPrintDuplex[]        = "print_duplex";
 static const char kJustLeft[]   = "left";
 static const char kJustCenter[] = "center";
 static const char kJustRight[]  = "right";
 #define NS_PRINTER_ENUMERATOR_CONTRACTID "@mozilla.org/gfx/printerenumerator;1"
 nsPrintOptions::nsPrintOptions()
 {
 }
 nsPrintOptions::~nsPrintOptions()
 {
 }
 nsresult
 nsPrintOptions::Init()
 {
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintOptions::ShowPrintSetupDialog(nsIPrintSettings *aPS)
 {
   NS_ENSURE_ARG_POINTER(aPS);
   nsresult rv;
   // create a nsISupportsArray of the parameters
   // being passed to the window
   nsCOMPtr<nsISupportsArray> array;
   rv = NS_NewISupportsArray(getter_AddRefs(array));
   NS_ENSURE_SUCCESS(rv, rv);
   nsCOMPtr<nsISupports> psSupports = do_QueryInterface(aPS);
   NS_ASSERTION(psSupports, "PrintSettings must be a supports");
   array->AppendElement(psSupports);
   nsCOMPtr<nsIDialogParamBlock> ioParamBlock =
       do_CreateInstance(NS_DIALOGPARAMBLOCK_CONTRACTID, &rv);
   NS_ENSURE_SUCCESS(rv, rv);
   ioParamBlock->SetInt(0, 0);
   nsCOMPtr<nsISupports> blkSupps = do_QueryInterface(ioParamBlock);
   NS_ASSERTION(blkSupps, "IOBlk must be a supports");
   array->AppendElement(blkSupps);
   nsCOMPtr<nsIWindowWatcher> wwatch =
       do_GetService(NS_WINDOWWATCHER_CONTRACTID, &rv);
   NS_ENSURE_SUCCESS(rv, rv);
   nsCOMPtr<nsIDOMWindow> parent;
   wwatch->GetActiveWindow(getter_AddRefs(parent));
   // null |parent| is non-fatal
   nsCOMPtr<nsIDOMWindow> newWindow;
   return wwatch->OpenWindow(parent,
                             "chrome://global/content/printPageSetup.xul",
                             "_blank","chrome,modal,centerscreen", array,
                             getter_AddRefs(newWindow));
 }
 /** ---------------------------------------------------
  *  Helper function - Creates the "prefix" for the pref
  *  It is either "print."
  *  or "print.printer_<print name>."
  */
 const char*
 nsPrintOptions::GetPrefName(const char * aPrefName,
                             const nsAString& aPrinterName)
 {
   if (!aPrefName || !*aPrefName) {
     NS_ERROR("Must have a valid pref name!");
     return aPrefName;
   }
   mPrefName.AssignLiteral("print.");
   if (aPrinterName.Length()) {
     mPrefName.AppendLiteral("printer_");
     AppendUTF16toUTF8(aPrinterName, mPrefName);
     mPrefName.AppendLiteral(".");
   }
   mPrefName += aPrefName;
   return mPrefName.get();
 }
 //----------------------------------------------------------------------
 // Testing of read/write prefs
 // This define controls debug output
 #ifdef DEBUG_rods_X
 static void WriteDebugStr(const char* aArg1, const char* aArg2,
                           const char16_t* aStr)
 {
   nsString str(aStr);
   char16_t s = '&';
   char16_t r = '_';
   str.ReplaceChar(s, r);
   printf("%s %s = %s \n", aArg1, aArg2, ToNewUTF8String(str));
 }
 const char* kWriteStr = "Write Pref:";
 const char* kReadStr  = "Read Pref:";
 #define DUMP_STR(_a1, _a2, _a3)  WriteDebugStr((_a1), GetPrefName((_a2), \
 aPrefName), (_a3));
 #define DUMP_BOOL(_a1, _a2, _a3) printf("%s %s = %s \n", (_a1), \
 GetPrefName((_a2), aPrefName), (_a3)?"T":"F");
 #define DUMP_INT(_a1, _a2, _a3)  printf("%s %s = %d \n", (_a1), \
 GetPrefName((_a2), aPrefName), (_a3));
 #define DUMP_DBL(_a1, _a2, _a3)  printf("%s %s = %10.5f \n", (_a1), \
 GetPrefName((_a2), aPrefName), (_a3));
 #else
 #define DUMP_STR(_a1, _a2, _a3)
 #define DUMP_BOOL(_a1, _a2, _a3)
 #define DUMP_INT(_a1, _a2, _a3)
 #define DUMP_DBL(_a1, _a2, _a3)
 #endif /* DEBUG_rods_X */
 //----------------------------------------------------------------------
 /**
  *  This will either read in the generic prefs (not specific to a printer)
  *  or read the prefs in using the printer name to qualify.
  *  It is either "print.attr_name" or "print.printer_HPLasr5.attr_name"
  */
 nsresult
 nsPrintOptions::ReadPrefs(nsIPrintSettings* aPS, const nsAString& aPrinterName,
                           uint32_t aFlags)
 {
   NS_ENSURE_ARG_POINTER(aPS);
   if (aFlags & nsIPrintSettings::kInitSaveMargins) {
     int32_t halfInch = NS_INCHES_TO_INT_TWIPS(0.5);
     nsIntMargin margin(halfInch, halfInch, halfInch, halfInch);
     ReadInchesToTwipsPref(GetPrefName(kMarginTop, aPrinterName), margin.top,
                           kMarginTop);
     DUMP_INT(kReadStr, kMarginTop, margin.top);
     ReadInchesToTwipsPref(GetPrefName(kMarginLeft, aPrinterName), margin.left,
                           kMarginLeft);
     DUMP_INT(kReadStr, kMarginLeft, margin.left);
     ReadInchesToTwipsPref(GetPrefName(kMarginBottom, aPrinterName),
                           margin.bottom, kMarginBottom);
     DUMP_INT(kReadStr, kMarginBottom, margin.bottom);
     ReadInchesToTwipsPref(GetPrefName(kMarginRight, aPrinterName), margin.right,
                           kMarginRight);
     DUMP_INT(kReadStr, kMarginRight, margin.right);
     aPS->SetMarginInTwips(margin);
   }
   if (aFlags & nsIPrintSettings::kInitSaveEdges) {
     nsIntMargin margin(0,0,0,0);
     ReadInchesIntToTwipsPref(GetPrefName(kEdgeTop, aPrinterName), margin.top,
                              kEdgeTop);
     DUMP_INT(kReadStr, kEdgeTop, margin.top);
     ReadInchesIntToTwipsPref(GetPrefName(kEdgeLeft, aPrinterName), margin.left,
                              kEdgeLeft);
     DUMP_INT(kReadStr, kEdgeLeft, margin.left);
     ReadInchesIntToTwipsPref(GetPrefName(kEdgeBottom, aPrinterName),
                              margin.bottom, kEdgeBottom);
     DUMP_INT(kReadStr, kEdgeBottom, margin.bottom);
     ReadInchesIntToTwipsPref(GetPrefName(kEdgeRight, aPrinterName), margin.right,
                              kEdgeRight);
     DUMP_INT(kReadStr, kEdgeRight, margin.right);
     aPS->SetEdgeInTwips(margin);
   }
   if (aFlags & nsIPrintSettings::kInitSaveUnwriteableMargins) {
     nsIntMargin margin;
     ReadInchesIntToTwipsPref(GetPrefName(kUnwriteableMarginTop, aPrinterName), margin.top,
                              kUnwriteableMarginTop);
     DUMP_INT(kReadStr, kUnwriteableMarginTop, margin.top);
     ReadInchesIntToTwipsPref(GetPrefName(kUnwriteableMarginLeft, aPrinterName), margin.left,
                              kUnwriteableMarginLeft);
     DUMP_INT(kReadStr, kUnwriteableMarginLeft, margin.left);
     ReadInchesIntToTwipsPref(GetPrefName(kUnwriteableMarginBottom, aPrinterName),
                              margin.bottom, kUnwriteableMarginBottom);
     DUMP_INT(kReadStr, kUnwriteableMarginBottom, margin.bottom);
     ReadInchesIntToTwipsPref(GetPrefName(kUnwriteableMarginRight, aPrinterName), margin.right,
                              kUnwriteableMarginRight);
     DUMP_INT(kReadStr, kUnwriteableMarginRight, margin.right);
     aPS->SetUnwriteableMarginInTwips(margin);
   }
   bool     b;
   nsAutoString str;
   int32_t  iVal;
   double   dbl;
 #define GETBOOLPREF(_prefname, _retval)                 \
   NS_SUCCEEDED(                                         \
     Preferences::GetBool(                               \
       GetPrefName(_prefname, aPrinterName), _retval     \
     )                                                   \
   )
 #define GETSTRPREF(_prefname, _retval)                  \
   NS_SUCCEEDED(                                         \
     Preferences::GetString(                             \
       GetPrefName(_prefname, aPrinterName), _retval     \
     )                                                   \
   )
 #define GETINTPREF(_prefname, _retval)                  \
   NS_SUCCEEDED(                                         \
     Preferences::GetInt(                                \
       GetPrefName(_prefname, aPrinterName), _retval     \
     )                                                   \
   )
 #define GETDBLPREF(_prefname, _retval)                  \
   NS_SUCCEEDED(                                         \
     ReadPrefDouble(                                     \
       GetPrefName(_prefname, aPrinterName), _retval     \
     )                                                   \
   )
   // Paper size prefs are read as a group
   if (aFlags & nsIPrintSettings::kInitSavePaperSize) {
     int32_t sizeUnit, sizeType;
     double width, height;
     bool success = GETINTPREF(kPrintPaperSizeUnit, &sizeUnit)
                   && GETINTPREF(kPrintPaperSizeType, &sizeType)
                   && GETDBLPREF(kPrintPaperWidth, width)
                   && GETDBLPREF(kPrintPaperHeight, height)
                   && GETSTRPREF(kPrintPaperName, &str);
     // Bug 315687: Sanity check paper size to avoid paper size values in
     // mm when the size unit flag is inches. The value 100 is arbitrary
     // and can be changed.
     if (success) {
       success = (sizeUnit != nsIPrintSettings::kPaperSizeInches)
              || (width < 100.0)
              || (height < 100.0);
     }
     if (success) {
       aPS->SetPaperSizeUnit(sizeUnit);
       DUMP_INT(kReadStr, kPrintPaperSizeUnit, sizeUnit);
       aPS->SetPaperSizeType(sizeType);
       DUMP_INT(kReadStr, kPrintPaperSizeType, sizeType);
       aPS->SetPaperWidth(width);
       DUMP_DBL(kReadStr, kPrintPaperWidth, width);
       aPS->SetPaperHeight(height);
       DUMP_DBL(kReadStr, kPrintPaperHeight, height);
       aPS->SetPaperName(str.get());
       DUMP_STR(kReadStr, kPrintPaperName, str.get());
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveOddEvenPages) {
   if (GETBOOLPREF(kPrintEvenPages, &b)) {
     aPS->SetPrintOptions(nsIPrintSettings::kPrintEvenPages, b);
     DUMP_BOOL(kReadStr, kPrintEvenPages, b);
   }
   }
   if (aFlags & nsIPrintSettings::kInitSaveOddEvenPages) {
     if (GETBOOLPREF(kPrintOddPages, &b)) {
       aPS->SetPrintOptions(nsIPrintSettings::kPrintOddPages, b);
       DUMP_BOOL(kReadStr, kPrintOddPages, b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveHeaderLeft) {
     if (GETSTRPREF(kPrintHeaderStrLeft, &str)) {
       aPS->SetHeaderStrLeft(str.get());
       DUMP_STR(kReadStr, kPrintHeaderStrLeft, str.get());
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveHeaderCenter) {
     if (GETSTRPREF(kPrintHeaderStrCenter, &str)) {
       aPS->SetHeaderStrCenter(str.get());
       DUMP_STR(kReadStr, kPrintHeaderStrCenter, str.get());
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveHeaderRight) {
     if (GETSTRPREF(kPrintHeaderStrRight, &str)) {
       aPS->SetHeaderStrRight(str.get());
       DUMP_STR(kReadStr, kPrintHeaderStrRight, str.get());
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveFooterLeft) {
     if (GETSTRPREF(kPrintFooterStrLeft, &str)) {
       aPS->SetFooterStrLeft(str.get());
       DUMP_STR(kReadStr, kPrintFooterStrLeft, str.get());
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveFooterCenter) {
     if (GETSTRPREF(kPrintFooterStrCenter, &str)) {
       aPS->SetFooterStrCenter(str.get());
       DUMP_STR(kReadStr, kPrintFooterStrCenter, str.get());
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveFooterRight) {
     if (GETSTRPREF(kPrintFooterStrRight, &str)) {
       aPS->SetFooterStrRight(str.get());
       DUMP_STR(kReadStr, kPrintFooterStrRight, str.get());
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveBGColors) {
     if (GETBOOLPREF(kPrintBGColors, &b)) {
       aPS->SetPrintBGColors(b);
       DUMP_BOOL(kReadStr, kPrintBGColors, b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveBGImages) {
     if (GETBOOLPREF(kPrintBGImages, &b)) {
       aPS->SetPrintBGImages(b);
       DUMP_BOOL(kReadStr, kPrintBGImages, b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveReversed) {
     if (GETBOOLPREF(kPrintReversed, &b)) {
       aPS->SetPrintReversed(b);
       DUMP_BOOL(kReadStr, kPrintReversed, b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveInColor) {
     if (GETBOOLPREF(kPrintInColor, &b)) {
       aPS->SetPrintInColor(b);
       DUMP_BOOL(kReadStr, kPrintInColor, b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSavePlexName) {
     if (GETSTRPREF(kPrintPlexName, &str)) {
       aPS->SetPlexName(str.get());
       DUMP_STR(kReadStr, kPrintPlexName, str.get());
     }
   }
   if (aFlags & nsIPrintSettings::kInitSavePaperData) {
     if (GETINTPREF(kPrintPaperData, &iVal)) {
       aPS->SetPaperData(iVal);
       DUMP_INT(kReadStr, kPrintPaperData, iVal);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveColorspace) {
     if (GETSTRPREF(kPrintColorspace, &str)) {
       aPS->SetColorspace(str.get());
       DUMP_STR(kReadStr, kPrintColorspace, str.get());
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveResolutionName) {
     if (GETSTRPREF(kPrintResolutionName, &str)) {
       aPS->SetResolutionName(str.get());
       DUMP_STR(kReadStr, kPrintResolutionName, str.get());
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveDownloadFonts) {
     if (GETBOOLPREF(kPrintDownloadFonts, &b)) {
       aPS->SetDownloadFonts(b);
       DUMP_BOOL(kReadStr, kPrintDownloadFonts, b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveOrientation) {
     if (GETINTPREF(kPrintOrientation, &iVal)) {
       aPS->SetOrientation(iVal);
       DUMP_INT(kReadStr, kPrintOrientation, iVal);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSavePrintCommand) {
     if (GETSTRPREF(kPrintCommand, &str)) {
       aPS->SetPrintCommand(str.get());
       DUMP_STR(kReadStr, kPrintCommand, str.get());
     }
   }
   if (aFlags & nsIPrintSettings::kInitSavePrintToFile) {
     if (GETBOOLPREF(kPrintToFile, &b)) {
       aPS->SetPrintToFile(b);
       DUMP_BOOL(kReadStr, kPrintToFile, b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveToFileName) {
     if (GETSTRPREF(kPrintToFileName, &str)) {
       aPS->SetToFileName(str.get());
       DUMP_STR(kReadStr, kPrintToFileName, str.get());
     }
   }
   if (aFlags & nsIPrintSettings::kInitSavePageDelay) {
     if (GETINTPREF(kPrintPageDelay, &iVal)) {
       aPS->SetPrintPageDelay(iVal);
       DUMP_INT(kReadStr, kPrintPageDelay, iVal);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveShrinkToFit) {
     if (GETBOOLPREF(kPrintShrinkToFit, &b)) {
       aPS->SetShrinkToFit(b);
       DUMP_BOOL(kReadStr, kPrintShrinkToFit, b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveScaling) {
     if (GETDBLPREF(kPrintScaling, dbl)) {
       aPS->SetScaling(dbl);
       DUMP_DBL(kReadStr, kPrintScaling, dbl);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveResolution) {
     if (GETINTPREF(kPrintResolution, &iVal)) {
       aPS->SetResolution(iVal);
       DUMP_INT(kReadStr, kPrintResolution, iVal);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveDuplex) {
     if (GETINTPREF(kPrintDuplex, &iVal)) {
       aPS->SetDuplex(iVal);
       DUMP_INT(kReadStr, kPrintDuplex, iVal);
     }
   }
   // Not Reading In:
   //   Number of Copies
   return NS_OK;
 }
 /** ---------------------------------------------------
  *  See documentation in nsPrintOptionsImpl.h
  *  @update 1/12/01 rods
  */
 nsresult
 nsPrintOptions::WritePrefs(nsIPrintSettings *aPS, const nsAString& aPrinterName,
                            uint32_t aFlags)
 {
   NS_ENSURE_ARG_POINTER(aPS);
   bool persistMarginBoxSettings;
   aPS->GetPersistMarginBoxSettings(&persistMarginBoxSettings);
   nsIntMargin margin;
   if (aFlags & nsIPrintSettings::kInitSaveMargins) {
     if (NS_SUCCEEDED(aPS->GetMarginInTwips(margin))) {
       WriteInchesFromTwipsPref(GetPrefName(kMarginTop, aPrinterName),
                                margin.top);
       DUMP_INT(kWriteStr, kMarginTop, margin.top);
       WriteInchesFromTwipsPref(GetPrefName(kMarginLeft, aPrinterName),
                                margin.left);
       DUMP_INT(kWriteStr, kMarginLeft, margin.top);
       WriteInchesFromTwipsPref(GetPrefName(kMarginBottom, aPrinterName),
                                margin.bottom);
       DUMP_INT(kWriteStr, kMarginBottom, margin.top);
       WriteInchesFromTwipsPref(GetPrefName(kMarginRight, aPrinterName),
                                margin.right);
       DUMP_INT(kWriteStr, kMarginRight, margin.top);
     }
   }
   nsIntMargin edge;
   if (aFlags & nsIPrintSettings::kInitSaveEdges) {
     if (NS_SUCCEEDED(aPS->GetEdgeInTwips(edge))) {
       WriteInchesIntFromTwipsPref(GetPrefName(kEdgeTop, aPrinterName),
                                   edge.top);
       DUMP_INT(kWriteStr, kEdgeTop, edge.top);
       WriteInchesIntFromTwipsPref(GetPrefName(kEdgeLeft, aPrinterName),
                                   edge.left);
       DUMP_INT(kWriteStr, kEdgeLeft, edge.top);
       WriteInchesIntFromTwipsPref(GetPrefName(kEdgeBottom, aPrinterName),
                                   edge.bottom);
       DUMP_INT(kWriteStr, kEdgeBottom, edge.top);
       WriteInchesIntFromTwipsPref(GetPrefName(kEdgeRight, aPrinterName),
                                   edge.right);
       DUMP_INT(kWriteStr, kEdgeRight, edge.top);
     }
   }
   nsIntMargin unwriteableMargin;
   if (aFlags & nsIPrintSettings::kInitSaveUnwriteableMargins) {
     if (NS_SUCCEEDED(aPS->GetUnwriteableMarginInTwips(unwriteableMargin))) {
       WriteInchesIntFromTwipsPref(GetPrefName(kUnwriteableMarginTop, aPrinterName),
                                   unwriteableMargin.top);
       DUMP_INT(kWriteStr, kUnwriteableMarginTop, unwriteableMargin.top);
       WriteInchesIntFromTwipsPref(GetPrefName(kUnwriteableMarginLeft, aPrinterName),
                                   unwriteableMargin.left);
       DUMP_INT(kWriteStr, kUnwriteableMarginLeft, unwriteableMargin.top);
       WriteInchesIntFromTwipsPref(GetPrefName(kUnwriteableMarginBottom, aPrinterName),
                                   unwriteableMargin.bottom);
       DUMP_INT(kWriteStr, kUnwriteableMarginBottom, unwriteableMargin.top);
       WriteInchesIntFromTwipsPref(GetPrefName(kUnwriteableMarginRight, aPrinterName),
                                   unwriteableMargin.right);
       DUMP_INT(kWriteStr, kUnwriteableMarginRight, unwriteableMargin.top);
     }
   }
   // Paper size prefs are saved as a group
   if (aFlags & nsIPrintSettings::kInitSavePaperSize) {
     int16_t sizeUnit, sizeType;
     double width, height;
     char16_t *name;
     if (
       NS_SUCCEEDED(aPS->GetPaperSizeUnit(&sizeUnit)) &&
       NS_SUCCEEDED(aPS->GetPaperSizeType(&sizeType)) &&
       NS_SUCCEEDED(aPS->GetPaperWidth(&width)) &&
       NS_SUCCEEDED(aPS->GetPaperHeight(&height)) &&
       NS_SUCCEEDED(aPS->GetPaperName(&name))
     ) {
       DUMP_INT(kWriteStr, kPrintPaperSizeUnit, sizeUnit);
       Preferences::SetInt(GetPrefName(kPrintPaperSizeUnit, aPrinterName),
                           int32_t(sizeUnit));
       DUMP_INT(kWriteStr, kPrintPaperSizeType, sizeType);
       Preferences::SetInt(GetPrefName(kPrintPaperSizeType, aPrinterName),
                           int32_t(sizeType));
       DUMP_DBL(kWriteStr, kPrintPaperWidth, width);
       WritePrefDouble(GetPrefName(kPrintPaperWidth, aPrinterName), width);
       DUMP_DBL(kWriteStr, kPrintPaperHeight, height);
       WritePrefDouble(GetPrefName(kPrintPaperHeight, aPrinterName), height);
       DUMP_STR(kWriteStr, kPrintPaperName, name);
       Preferences::SetString(GetPrefName(kPrintPaperName, aPrinterName), name);
     }
   }
   bool       b;
   char16_t* uStr;
   int32_t    iVal;
   int16_t    iVal16;
   double     dbl;
   if (aFlags & nsIPrintSettings::kInitSaveOddEvenPages) {
     if (NS_SUCCEEDED(aPS->GetPrintOptions(nsIPrintSettings::kPrintEvenPages,
                                           &b))) {
           DUMP_BOOL(kWriteStr, kPrintEvenPages, b);
           Preferences::SetBool(GetPrefName(kPrintEvenPages, aPrinterName), b);
         }
   }
   if (aFlags & nsIPrintSettings::kInitSaveOddEvenPages) {
     if (NS_SUCCEEDED(aPS->GetPrintOptions(nsIPrintSettings::kPrintOddPages,
                                           &b))) {
           DUMP_BOOL(kWriteStr, kPrintOddPages, b);
           Preferences::SetBool(GetPrefName(kPrintOddPages, aPrinterName), b);
         }
   }
   if (persistMarginBoxSettings) {
     if (aFlags & nsIPrintSettings::kInitSaveHeaderLeft) {
       if (NS_SUCCEEDED(aPS->GetHeaderStrLeft(&uStr))) {
         DUMP_STR(kWriteStr, kPrintHeaderStrLeft, uStr);
         Preferences::SetString(GetPrefName(kPrintHeaderStrLeft, aPrinterName),
                                uStr);
       }
     }
     if (aFlags & nsIPrintSettings::kInitSaveHeaderCenter) {
       if (NS_SUCCEEDED(aPS->GetHeaderStrCenter(&uStr))) {
         DUMP_STR(kWriteStr, kPrintHeaderStrCenter, uStr);
         Preferences::SetString(GetPrefName(kPrintHeaderStrCenter, aPrinterName),
                                uStr);
       }
     }
     if (aFlags & nsIPrintSettings::kInitSaveHeaderRight) {
       if (NS_SUCCEEDED(aPS->GetHeaderStrRight(&uStr))) {
         DUMP_STR(kWriteStr, kPrintHeaderStrRight, uStr);
         Preferences::SetString(GetPrefName(kPrintHeaderStrRight, aPrinterName),
                                uStr);
       }
     }
     if (aFlags & nsIPrintSettings::kInitSaveFooterLeft) {
       if (NS_SUCCEEDED(aPS->GetFooterStrLeft(&uStr))) {
         DUMP_STR(kWriteStr, kPrintFooterStrLeft, uStr);
         Preferences::SetString(GetPrefName(kPrintFooterStrLeft, aPrinterName),
                                uStr);
       }
     }
     if (aFlags & nsIPrintSettings::kInitSaveFooterCenter) {
       if (NS_SUCCEEDED(aPS->GetFooterStrCenter(&uStr))) {
         DUMP_STR(kWriteStr, kPrintFooterStrCenter, uStr);
         Preferences::SetString(GetPrefName(kPrintFooterStrCenter, aPrinterName),
                                uStr);
       }
     }
     if (aFlags & nsIPrintSettings::kInitSaveFooterRight) {
       if (NS_SUCCEEDED(aPS->GetFooterStrRight(&uStr))) {
         DUMP_STR(kWriteStr, kPrintFooterStrRight, uStr);
         Preferences::SetString(GetPrefName(kPrintFooterStrRight, aPrinterName),
                                uStr);
       }
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveBGColors) {
     if (NS_SUCCEEDED(aPS->GetPrintBGColors(&b))) {
       DUMP_BOOL(kWriteStr, kPrintBGColors, b);
       Preferences::SetBool(GetPrefName(kPrintBGColors, aPrinterName), b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveBGImages) {
     if (NS_SUCCEEDED(aPS->GetPrintBGImages(&b))) {
       DUMP_BOOL(kWriteStr, kPrintBGImages, b);
       Preferences::SetBool(GetPrefName(kPrintBGImages, aPrinterName), b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveReversed) {
     if (NS_SUCCEEDED(aPS->GetPrintReversed(&b))) {
       DUMP_BOOL(kWriteStr, kPrintReversed, b);
       Preferences::SetBool(GetPrefName(kPrintReversed, aPrinterName), b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveInColor) {
     if (NS_SUCCEEDED(aPS->GetPrintInColor(&b))) {
       DUMP_BOOL(kWriteStr, kPrintInColor, b);
       Preferences::SetBool(GetPrefName(kPrintInColor, aPrinterName), b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSavePlexName) {
     if (NS_SUCCEEDED(aPS->GetPlexName(&uStr))) {
       DUMP_STR(kWriteStr, kPrintPlexName, uStr);
       Preferences::SetString(GetPrefName(kPrintPlexName, aPrinterName), uStr);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSavePaperData) {
     if (NS_SUCCEEDED(aPS->GetPaperData(&iVal16))) {
       DUMP_INT(kWriteStr, kPrintPaperData, iVal16);
       Preferences::SetInt(GetPrefName(kPrintPaperData, aPrinterName),
                           int32_t(iVal16));
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveColorspace) {
     if (NS_SUCCEEDED(aPS->GetColorspace(&uStr))) {
       DUMP_STR(kWriteStr, kPrintColorspace, uStr);
       Preferences::SetString(GetPrefName(kPrintColorspace, aPrinterName), uStr);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveResolutionName) {
     if (NS_SUCCEEDED(aPS->GetResolutionName(&uStr))) {
       DUMP_STR(kWriteStr, kPrintResolutionName, uStr);
       Preferences::SetString(GetPrefName(kPrintResolutionName, aPrinterName),
                              uStr);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveDownloadFonts) {
     if (NS_SUCCEEDED(aPS->GetDownloadFonts(&b))) {
       DUMP_BOOL(kWriteStr, kPrintDownloadFonts, b);
       Preferences::SetBool(GetPrefName(kPrintDownloadFonts, aPrinterName), b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveOrientation) {
     if (NS_SUCCEEDED(aPS->GetOrientation(&iVal))) {
       DUMP_INT(kWriteStr, kPrintOrientation, iVal);
       Preferences::SetInt(GetPrefName(kPrintOrientation, aPrinterName), iVal);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSavePrintCommand) {
     if (NS_SUCCEEDED(aPS->GetPrintCommand(&uStr))) {
       DUMP_STR(kWriteStr, kPrintCommand, uStr);
       Preferences::SetString(GetPrefName(kPrintCommand, aPrinterName), uStr);
     }
   }
   // Only the general version of this pref is saved
   if ((aFlags & nsIPrintSettings::kInitSavePrinterName)
       && aPrinterName.IsEmpty()) {
     if (NS_SUCCEEDED(aPS->GetPrinterName(&uStr))) {
       DUMP_STR(kWriteStr, kPrinterName, uStr);
       Preferences::SetString(kPrinterName, uStr);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSavePrintToFile) {
     if (NS_SUCCEEDED(aPS->GetPrintToFile(&b))) {
       DUMP_BOOL(kWriteStr, kPrintToFile, b);
       Preferences::SetBool(GetPrefName(kPrintToFile, aPrinterName), b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveToFileName) {
     if (NS_SUCCEEDED(aPS->GetToFileName(&uStr))) {
       DUMP_STR(kWriteStr, kPrintToFileName, uStr);
       Preferences::SetString(GetPrefName(kPrintToFileName, aPrinterName), uStr);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSavePageDelay) {
     if (NS_SUCCEEDED(aPS->GetPrintPageDelay(&iVal))) {
       DUMP_INT(kWriteStr, kPrintPageDelay, iVal);
       Preferences::SetInt(GetPrefName(kPrintPageDelay, aPrinterName), iVal);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveShrinkToFit) {
     if (NS_SUCCEEDED(aPS->GetShrinkToFit(&b))) {
       DUMP_BOOL(kWriteStr, kPrintShrinkToFit, b);
       Preferences::SetBool(GetPrefName(kPrintShrinkToFit, aPrinterName), b);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveScaling) {
     if (NS_SUCCEEDED(aPS->GetScaling(&dbl))) {
       DUMP_DBL(kWriteStr, kPrintScaling, dbl);
       WritePrefDouble(GetPrefName(kPrintScaling, aPrinterName), dbl);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveResolution) {
     if (NS_SUCCEEDED(aPS->GetResolution(&iVal))) {
       DUMP_INT(kWriteStr, kPrintResolution, iVal);
       Preferences::SetInt(GetPrefName(kPrintResolution, aPrinterName), iVal);
     }
   }
   if (aFlags & nsIPrintSettings::kInitSaveDuplex) {
     if (NS_SUCCEEDED(aPS->GetDuplex(&iVal))) {
       DUMP_INT(kWriteStr, kPrintDuplex, iVal);
       Preferences::SetInt(GetPrefName(kPrintDuplex, aPrinterName), iVal);
     }
   }
   // Not Writing Out:
   //   Number of Copies
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintOptions::DisplayJobProperties(const char16_t *aPrinter,
                                      nsIPrintSettings* aPrintSettings,
                                      bool *aDisplayed)
 {
   NS_ENSURE_ARG_POINTER(aPrinter);
   *aDisplayed = false;
   nsresult rv;
   nsCOMPtr<nsIPrinterEnumerator> propDlg =
            do_CreateInstance(NS_PRINTER_ENUMERATOR_CONTRACTID, &rv);
   NS_ENSURE_SUCCESS(rv, rv);
   NS_ENSURE_ARG_POINTER(aPrintSettings);
   rv = propDlg->DisplayPropertiesDlg(aPrinter, aPrintSettings);
   NS_ENSURE_SUCCESS(rv, rv);
   *aDisplayed = true;
   return rv;
 }
 NS_IMETHODIMP nsPrintOptions::GetNativeData(int16_t aDataType, void * *_retval)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 nsresult nsPrintOptions::_CreatePrintSettings(nsIPrintSettings **_retval)
 {
   // does not initially ref count
   nsPrintSettings * printSettings = new nsPrintSettings();
   NS_ENSURE_TRUE(printSettings, NS_ERROR_OUT_OF_MEMORY);
   NS_ADDREF(*_retval = printSettings); // ref count
   nsXPIDLString printerName;
   nsresult rv = GetDefaultPrinterName(getter_Copies(printerName));
   NS_ENSURE_SUCCESS(rv, rv);
   (*_retval)->SetPrinterName(printerName.get());
   (void)InitPrintSettingsFromPrefs(*_retval, false,
                                    nsIPrintSettings::kInitSaveAll);
   return NS_OK;
 }
 NS_IMETHODIMP nsPrintOptions::CreatePrintSettings(nsIPrintSettings **_retval)
 {
   return _CreatePrintSettings(_retval);
 }
 NS_IMETHODIMP
 nsPrintOptions::GetGlobalPrintSettings(nsIPrintSettings **aGlobalPrintSettings)
 {
   nsresult rv;
   rv = CreatePrintSettings(getter_AddRefs(mGlobalPrintSettings));
   NS_ENSURE_SUCCESS(rv, rv);
   NS_ADDREF(*aGlobalPrintSettings = mGlobalPrintSettings.get());
   return rv;
 }
 NS_IMETHODIMP
 nsPrintOptions::GetNewPrintSettings(nsIPrintSettings * *aNewPrintSettings)
 {
   return CreatePrintSettings(aNewPrintSettings);
 }
 NS_IMETHODIMP
 nsPrintOptions::GetDefaultPrinterName(char16_t * *aDefaultPrinterName)
 {
   nsresult rv;
   nsCOMPtr<nsIPrinterEnumerator> prtEnum =
            do_GetService(NS_PRINTER_ENUMERATOR_CONTRACTID, &rv);
   NS_ENSURE_SUCCESS(rv, rv);
   // Look up the printer from the last print job
   nsAutoString lastPrinterName;
   Preferences::GetString(kPrinterName, &lastPrinterName);
   if (!lastPrinterName.IsEmpty()) {
     // Verify it's still a valid printer
     nsCOMPtr<nsIStringEnumerator> printers;
     rv = prtEnum->GetPrinterNameList(getter_AddRefs(printers));
     if (NS_SUCCEEDED(rv)) {
       bool isValid = false;
       bool hasMore;
       while (NS_SUCCEEDED(printers->HasMore(&hasMore)) && hasMore) {
         nsAutoString printer;
         if (NS_SUCCEEDED(printers->GetNext(printer)) && lastPrinterName.Equals(printer)) {
           isValid = true;
           break;
         }
       }
       if (isValid) {
         *aDefaultPrinterName = ToNewUnicode(lastPrinterName);
         return NS_OK;
       }
     }
   }
   // There is no last printer preference, or it doesn't name a valid printer.
   // Return the default from the printer enumeration.
   return prtEnum->GetDefaultPrinterName(aDefaultPrinterName);
 }
 NS_IMETHODIMP
 nsPrintOptions::InitPrintSettingsFromPrinter(const char16_t *aPrinterName,
                                              nsIPrintSettings *aPrintSettings)
 {
   NS_ENSURE_ARG_POINTER(aPrintSettings);
   NS_ENSURE_ARG_POINTER(aPrinterName);
 #ifdef DEBUG
   nsXPIDLString printerName;
   aPrintSettings->GetPrinterName(getter_Copies(printerName));
   if (!printerName.Equals(aPrinterName)) {
     NS_WARNING("Printer names should match!");
   }
 #endif
   bool isInitialized;
   aPrintSettings->GetIsInitializedFromPrinter(&isInitialized);
   if (isInitialized)
     return NS_OK;
   nsresult rv;
   nsCOMPtr<nsIPrinterEnumerator> prtEnum =
            do_GetService(NS_PRINTER_ENUMERATOR_CONTRACTID, &rv);
   NS_ENSURE_SUCCESS(rv, rv);
   rv = prtEnum->InitPrintSettingsFromPrinter(aPrinterName, aPrintSettings);
   NS_ENSURE_SUCCESS(rv, rv);
   aPrintSettings->SetIsInitializedFromPrinter(true);
   return rv;
 }
 /** ---------------------------------------------------
  *  Helper function - Returns either the name or sets the length to zero
  */
 static nsresult
 GetAdjustedPrinterName(nsIPrintSettings* aPS, bool aUsePNP,
                        nsAString& aPrinterName)
 {
   NS_ENSURE_ARG_POINTER(aPS);
   aPrinterName.Truncate();
   if (!aUsePNP)
     return NS_OK;
   // Get the Printer Name from the PrintSettings
   // to use as a prefix for Pref Names
   char16_t* prtName = nullptr;
   nsresult rv = aPS->GetPrinterName(&prtName);
   NS_ENSURE_SUCCESS(rv, rv);
   aPrinterName = nsDependentString(prtName);
   // Convert any whitespaces, carriage returns or newlines to _
   // The below algorithm is supposedly faster than using iterators
   NS_NAMED_LITERAL_STRING(replSubstr, "_");
   const char* replaceStr = " \n\r";
   int32_t x;
   for (x=0; x < (int32_t)strlen(replaceStr); x++) {
     char16_t uChar = replaceStr[x];
     int32_t i = 0;
     while ((i = aPrinterName.FindChar(uChar, i)) != kNotFound) {
       aPrinterName.Replace(i, 1, replSubstr);
       i++;
     }
   }
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintOptions::GetPrinterPrefInt(nsIPrintSettings *aPrintSettings,
                                   const char16_t *aPrefName, int32_t *_retval)
 {
   NS_ENSURE_ARG_POINTER(aPrintSettings);
   NS_ENSURE_ARG_POINTER(aPrefName);
   nsAutoString prtName;
   // Get the Printer Name from the PrintSettings
   // to use as a prefix for Pref Names
   GetAdjustedPrinterName(aPrintSettings, true, prtName);
   const char* prefName =
     GetPrefName(NS_LossyConvertUTF16toASCII(aPrefName).get(), prtName);
   NS_ENSURE_TRUE(prefName, NS_ERROR_FAILURE);
   int32_t iVal;
   nsresult rv = Preferences::GetInt(prefName, &iVal);
   NS_ENSURE_SUCCESS(rv, rv);
   *_retval = iVal;
   return rv;
 }
 NS_IMETHODIMP
 nsPrintOptions::InitPrintSettingsFromPrefs(nsIPrintSettings* aPS,
                                            bool aUsePNP, uint32_t aFlags)
 {
   NS_ENSURE_ARG_POINTER(aPS);
   bool isInitialized;
   aPS->GetIsInitializedFromPrefs(&isInitialized);
   if (isInitialized)
     return NS_OK;
   nsAutoString prtName;
   // read any non printer specific prefs
   // with empty printer name
   nsresult rv = ReadPrefs(aPS, prtName, aFlags);
   NS_ENSURE_SUCCESS(rv, rv);
   // Do not use printer name in Linux because GTK backend does not support
   // per printer settings.
 #ifndef MOZ_X11
   // Get the Printer Name from the PrintSettings
   // to use as a prefix for Pref Names
   rv = GetAdjustedPrinterName(aPS, aUsePNP, prtName);
   NS_ENSURE_SUCCESS(rv, rv);
   if (prtName.IsEmpty()) {
     NS_WARNING("Caller should supply a printer name.");
     return NS_OK;
   }
   // Now read any printer specific prefs
   rv = ReadPrefs(aPS, prtName, aFlags);
   if (NS_SUCCEEDED(rv))
     aPS->SetIsInitializedFromPrefs(true);
 #endif
   return NS_OK;
 }
 /**
  *  Save all of the printer settings; if we can find a printer name, save
  *  printer-specific preferences. Otherwise, save generic ones.
  */
 nsresult
 nsPrintOptions::SavePrintSettingsToPrefs(nsIPrintSettings *aPS,
                                          bool aUsePrinterNamePrefix,
                                          uint32_t aFlags)
 {
   NS_ENSURE_ARG_POINTER(aPS);
   nsAutoString prtName;
   // Do not use printer name in Linux because GTK backend does not support
   // per printer settings.
 #ifndef MOZ_X11
   // Get the printer name from the PrinterSettings for an optional prefix.
   nsresult rv = GetAdjustedPrinterName(aPS, aUsePrinterNamePrefix, prtName);
   NS_ENSURE_SUCCESS(rv, rv);
 #endif
   // Write the prefs, with or without a printer name prefix.
   return WritePrefs(aPS, prtName, aFlags);
 }
 //-----------------------------------------------------
 //-- Protected Methods --------------------------------
 //-----------------------------------------------------
 nsresult
 nsPrintOptions::ReadPrefDouble(const char * aPrefId, double& aVal)
 {
   NS_ENSURE_ARG_POINTER(aPrefId);
   nsAutoCString str;
   nsresult rv = Preferences::GetCString(aPrefId, &str);
   if (NS_SUCCEEDED(rv) && !str.IsEmpty()) {
     aVal = atof(str.get());
   }
   return rv;
 }
 nsresult
 nsPrintOptions::WritePrefDouble(const char * aPrefId, double aVal)
 {
   NS_ENSURE_ARG_POINTER(aPrefId);
   nsPrintfCString str("%6.2f", aVal);
   NS_ENSURE_TRUE(!str.IsEmpty(), NS_ERROR_FAILURE);
   return Preferences::SetCString(aPrefId, str);
 }
 void
 nsPrintOptions::ReadInchesToTwipsPref(const char * aPrefId, int32_t& aTwips,
                                       const char * aMarginPref)
 {
   nsAutoString str;
   nsresult rv = Preferences::GetString(aPrefId, &str);
   if (NS_FAILED(rv) || str.IsEmpty()) {
     rv = Preferences::GetString(aMarginPref, &str);
   }
   if (NS_SUCCEEDED(rv) && !str.IsEmpty()) {
     nsresult errCode;
     float inches = str.ToFloat(&errCode);
     if (NS_SUCCEEDED(errCode)) {
       aTwips = NS_INCHES_TO_INT_TWIPS(inches);
     } else {
       aTwips = 0;
     }
   }
 }
 void
 nsPrintOptions::WriteInchesFromTwipsPref(const char * aPrefId, int32_t aTwips)
 {
   double inches = NS_TWIPS_TO_INCHES(aTwips);
   nsAutoCString inchesStr;
   inchesStr.AppendFloat(inches);
   Preferences::SetCString(aPrefId, inchesStr);
 }
 void
 nsPrintOptions::ReadInchesIntToTwipsPref(const char * aPrefId, int32_t& aTwips,
                                          const char * aMarginPref)
 {
   int32_t value;
   nsresult rv = Preferences::GetInt(aPrefId, &value);
   if (NS_FAILED(rv)) {
     rv = Preferences::GetInt(aMarginPref, &value);
   }
   if (NS_SUCCEEDED(rv)) {
     aTwips = NS_INCHES_TO_INT_TWIPS(float(value)/100.0f);
   } else {
     aTwips = 0;
   }
 }
 void
 nsPrintOptions::WriteInchesIntFromTwipsPref(const char * aPrefId, int32_t aTwips)
 {
   Preferences::SetInt(aPrefId,
                       int32_t(NS_TWIPS_TO_INCHES(aTwips) * 100.0f + 0.5f));
 }
 void
 nsPrintOptions::ReadJustification(const char * aPrefId, int16_t& aJust,
                                   int16_t aInitValue)
 {
   aJust = aInitValue;
   nsAutoString justStr;
   if (NS_SUCCEEDED(Preferences::GetString(aPrefId, &justStr))) {
     if (justStr.EqualsASCII(kJustRight)) {
       aJust = nsIPrintSettings::kJustRight;
     } else if (justStr.EqualsASCII(kJustCenter)) {
       aJust = nsIPrintSettings::kJustCenter;
     } else {
       aJust = nsIPrintSettings::kJustLeft;
     }
   }
 }
 //---------------------------------------------------
 void
 nsPrintOptions::WriteJustification(const char * aPrefId, int16_t aJust)
 {
   switch (aJust) {
     case nsIPrintSettings::kJustLeft:
       Preferences::SetCString(aPrefId, kJustLeft);
       break;
     case nsIPrintSettings::kJustCenter:
       Preferences::SetCString(aPrefId, kJustCenter);
       break;
     case nsIPrintSettings::kJustRight:
       Preferences::SetCString(aPrefId, kJustRight);
       break;
   } //switch
 }
 //----------------------------------------------------------------------
 // Testing of read/write prefs
 // This define turns on the testing module below
 // so at start up it writes and reads the prefs.
 #ifdef DEBUG_rods_X
 class Tester {
   public:
     Tester();
 };
 Tester::Tester()
 {
   nsCOMPtr<nsIPrintSettings> ps;
   nsresult rv;
   nsCOMPtr<nsIPrintOptions> printService =
       do_GetService("@mozilla.org/gfx/printsettings-service;1", &rv);
   if (NS_SUCCEEDED(rv)) {
     rv = printService->CreatePrintSettings(getter_AddRefs(ps));
   }
   if (ps) {
     ps->SetPrintOptions(nsIPrintSettings::kPrintOddPages,  true);
     ps->SetPrintOptions(nsIPrintSettings::kPrintEvenPages,  false);
     ps->SetMarginTop(1.0);
     ps->SetMarginLeft(1.0);
     ps->SetMarginBottom(1.0);
     ps->SetMarginRight(1.0);
     ps->SetScaling(0.5);
     ps->SetPrintBGColors(true);
     ps->SetPrintBGImages(true);
     ps->SetPrintRange(15);
     ps->SetHeaderStrLeft(NS_ConvertUTF8toUTF16("Left").get());
     ps->SetHeaderStrCenter(NS_ConvertUTF8toUTF16("Center").get());
     ps->SetHeaderStrRight(NS_ConvertUTF8toUTF16("Right").get());
     ps->SetFooterStrLeft(NS_ConvertUTF8toUTF16("Left").get());
     ps->SetFooterStrCenter(NS_ConvertUTF8toUTF16("Center").get());
     ps->SetFooterStrRight(NS_ConvertUTF8toUTF16("Right").get());
     ps->SetPaperName(NS_ConvertUTF8toUTF16("Paper Name").get());
     ps->SetPlexName(NS_ConvertUTF8toUTF16("Plex Name").get());
     ps->SetPaperSizeType(10);
     ps->SetPaperData(1);
     ps->SetPaperWidth(100.0);
     ps->SetPaperHeight(50.0);
     ps->SetPaperSizeUnit(nsIPrintSettings::kPaperSizeMillimeters);
     ps->SetPrintReversed(true);
     ps->SetPrintInColor(true);
     ps->SetOrientation(nsIPrintSettings::kLandscapeOrientation);
     ps->SetPrintCommand(NS_ConvertUTF8toUTF16("Command").get());
     ps->SetNumCopies(2);
     ps->SetPrinterName(NS_ConvertUTF8toUTF16("Printer Name").get());
     ps->SetPrintToFile(true);
     ps->SetToFileName(NS_ConvertUTF8toUTF16("File Name").get());
     ps->SetPrintPageDelay(1000);
     ps->SetShrinkToFit(true);
     struct SettingsType {
       const char* mName;
       uint32_t    mFlag;
     };
     SettingsType gSettings[] = {
       {"OddEven", nsIPrintSettings::kInitSaveOddEvenPages},
       {kPrintHeaderStrLeft, nsIPrintSettings::kInitSaveHeaderLeft},
       {kPrintHeaderStrCenter, nsIPrintSettings::kInitSaveHeaderCenter},
       {kPrintHeaderStrRight, nsIPrintSettings::kInitSaveHeaderRight},
       {kPrintFooterStrLeft, nsIPrintSettings::kInitSaveFooterLeft},
       {kPrintFooterStrCenter, nsIPrintSettings::kInitSaveFooterCenter},
       {kPrintFooterStrRight, nsIPrintSettings::kInitSaveFooterRight},
       {kPrintBGColors, nsIPrintSettings::kInitSaveBGColors},
       {kPrintBGImages, nsIPrintSettings::kInitSaveBGImages},
       {kPrintShrinkToFit, nsIPrintSettings::kInitSaveShrinkToFit},
       {kPrintPaperSize, nsIPrintSettings::kInitSavePaperSize},
       {kPrintPlexName, nsIPrintSettings::kInitSavePlexName},
       {kPrintPaperData, nsIPrintSettings::kInitSavePaperData},
       {kPrintReversed, nsIPrintSettings::kInitSaveReversed},
       {kPrintInColor, nsIPrintSettings::kInitSaveInColor},
       {kPrintColorspace, nsIPrintSettings::kInitSaveColorspace},
       {kPrintResolutionName, nsIPrintSettings::kInitSaveResolutionName},
       {kPrintDownloadFonts, nsIPrintSettings::kInitSaveDownloadFonts},
       {kPrintOrientation, nsIPrintSettings::kInitSaveOrientation},
       {kPrintCommand, nsIPrintSettings::kInitSavePrintCommand},
       {kPrinterName, nsIPrintSettings::kInitSavePrinterName},
       {kPrintToFile, nsIPrintSettings::kInitSavePrintToFile},
       {kPrintToFileName, nsIPrintSettings::kInitSaveToFileName},
       {kPrintPageDelay, nsIPrintSettings::kInitSavePageDelay},
       {"Margins", nsIPrintSettings::kInitSaveMargins},
       {"All", nsIPrintSettings::kInitSaveAll},
       {nullptr, 0}};
       nsString prefix; prefix.AssignLiteral("Printer Name");
       int32_t i = 0;
       while (gSettings[i].mName != nullptr) {
         printf("------------------------------------------------\n");
         printf("%d) %s -> 0x%X\n", i, gSettings[i].mName, gSettings[i].mFlag);
         printService->SavePrintSettingsToPrefs(ps, true, gSettings[i].mFlag);
         printService->InitPrintSettingsFromPrefs(ps, true,
                                                  gSettings[i].mFlag);
         i++;
       }
   }
 }
 Tester gTester;
 #endif

The Tor Browser / annotate

widget/xpwidgets/nsPrintOptionsImpl.cpp@97036ab72558 (annotated)

widget/xpwidgets/nsPrintOptionsImpl.cpp