The Tor Browser: widget/gtk/nsPrintSettingsGTK.cpp@ac0c01689b40 (annotated)

widget/gtk/nsPrintSettingsGTK.cpp@ac0c01689b40 (annotated)

widget/gtk/nsPrintSettingsGTK.cpp

Thu, 15 Jan 2015 15:59:08 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 15 Jan 2015 15:59:08 +0100
branch: TOR_BUG_9701
changeset 10: ac0c01689b40
permissions: -rw-r--r--

Implement a real Private Browsing Mode condition by changing the API/ABI;
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 "nsPrintSettingsGTK.h"
 #include "nsIFile.h"
 #include "nsNetUtil.h"
 #include <stdlib.h>
 #include <algorithm>
 static
 gboolean ref_printer(GtkPrinter *aPrinter, gpointer aData)
 {
   ((nsPrintSettingsGTK*) aData)->SetGtkPrinter(aPrinter);
   return TRUE;
 }
 static
 gboolean printer_enumerator(GtkPrinter *aPrinter, gpointer aData)
 {
   if (gtk_printer_is_default(aPrinter))
     return ref_printer(aPrinter, aData);
   return FALSE; // Keep 'em coming...
 }
 static
 GtkPaperSize* moz_gtk_paper_size_copy_to_new_custom(GtkPaperSize* oldPaperSize)
 {
   // We make a "custom-ified" copy of the paper size so it can be changed later.
   return gtk_paper_size_new_custom(gtk_paper_size_get_name(oldPaperSize),
                                    gtk_paper_size_get_display_name(oldPaperSize),
                                    gtk_paper_size_get_width(oldPaperSize, GTK_UNIT_INCH),
                                    gtk_paper_size_get_height(oldPaperSize, GTK_UNIT_INCH),
                                    GTK_UNIT_INCH);
 }
 NS_IMPL_ISUPPORTS_INHERITED(nsPrintSettingsGTK,
                             nsPrintSettings,
                             nsPrintSettingsGTK)
 /** ---------------------------------------------------
  */
 nsPrintSettingsGTK::nsPrintSettingsGTK() :
   mPageSetup(nullptr),
   mPrintSettings(nullptr),
   mGTKPrinter(nullptr),
   mPrintSelectionOnly(false)
 {
   // The aim here is to set up the objects enough that silent printing works well.
   // These will be replaced anyway if the print dialog is used.
   mPrintSettings = gtk_print_settings_new();
   mPageSetup = gtk_page_setup_new();
   InitUnwriteableMargin();
   SetOutputFormat(nsIPrintSettings::kOutputFormatNative);
   GtkPaperSize* defaultPaperSize = gtk_paper_size_new(nullptr);
   mPaperSize = moz_gtk_paper_size_copy_to_new_custom(defaultPaperSize);
   gtk_paper_size_free(defaultPaperSize);
   SaveNewPageSize();
 }
 /** ---------------------------------------------------
  */
 nsPrintSettingsGTK::~nsPrintSettingsGTK()
 {
   if (mPageSetup) {
     g_object_unref(mPageSetup);
     mPageSetup = nullptr;
   }
   if (mPrintSettings) {
     g_object_unref(mPrintSettings);
     mPrintSettings = nullptr;
   }
   if (mGTKPrinter) {
     g_object_unref(mGTKPrinter);
     mGTKPrinter = nullptr;
   }
   gtk_paper_size_free(mPaperSize);
 }
 /** ---------------------------------------------------
  */
 nsPrintSettingsGTK::nsPrintSettingsGTK(const nsPrintSettingsGTK& aPS) :
   mPageSetup(nullptr),
   mPrintSettings(nullptr),
   mGTKPrinter(nullptr),
   mPrintSelectionOnly(false)
 {
   *this = aPS;
 }
 /** ---------------------------------------------------
  */
 nsPrintSettingsGTK& nsPrintSettingsGTK::operator=(const nsPrintSettingsGTK& rhs)
 {
   if (this == &rhs) {
     return *this;
   }
   nsPrintSettings::operator=(rhs);
   if (mPageSetup)
     g_object_unref(mPageSetup);
   mPageSetup = gtk_page_setup_copy(rhs.mPageSetup);
   // NOTE: No need to re-initialize mUnwriteableMargin here (even
   // though mPageSetup is changing). It'll be copied correctly by
   // nsPrintSettings::operator=.
   if (mPrintSettings)
     g_object_unref(mPrintSettings);
   mPrintSettings = gtk_print_settings_copy(rhs.mPrintSettings);
   if (mGTKPrinter)
     g_object_unref(mGTKPrinter);
   mGTKPrinter = (GtkPrinter*) g_object_ref(rhs.mGTKPrinter);
   mPrintSelectionOnly = rhs.mPrintSelectionOnly;
   return *this;
 }
 /** -------------------------------------------
  */
 nsresult nsPrintSettingsGTK::_Clone(nsIPrintSettings **_retval)
 {
   NS_ENSURE_ARG_POINTER(_retval);
   *_retval = nullptr;
   nsPrintSettingsGTK *newSettings = new nsPrintSettingsGTK(*this);
   if (!newSettings)
     return NS_ERROR_FAILURE;
   *_retval = newSettings;
   NS_ADDREF(*_retval);
   return NS_OK;
 }
 /** -------------------------------------------
  */
 NS_IMETHODIMP
 nsPrintSettingsGTK::_Assign(nsIPrintSettings *aPS)
 {
   nsPrintSettingsGTK *printSettingsGTK = static_cast<nsPrintSettingsGTK*>(aPS);
   if (!printSettingsGTK)
     return NS_ERROR_UNEXPECTED;
   *this = *printSettingsGTK;
   return NS_OK;
 }
 /** ---------------------------------------------------
  */
 void
 nsPrintSettingsGTK::SetGtkPageSetup(GtkPageSetup *aPageSetup)
 {
   if (mPageSetup)
     g_object_unref(mPageSetup);
   mPageSetup = (GtkPageSetup*) g_object_ref(aPageSetup);
   InitUnwriteableMargin();
   // We make a custom copy of the GtkPaperSize so it can be mutable. If a
   // GtkPaperSize wasn't made as custom, its properties are immutable.
   GtkPaperSize* newPaperSize = gtk_page_setup_get_paper_size(aPageSetup);
   if (newPaperSize) { // Yes, this can be null
     gtk_paper_size_free(mPaperSize);
     mPaperSize = moz_gtk_paper_size_copy_to_new_custom(newPaperSize);
   }
   // If newPaperSize was not null, we must update our twin too (GtkPrintSettings).
   // If newPaperSize was null, we must set this object to use mPaperSize.
   SaveNewPageSize();
 }
 /** ---------------------------------------------------
  */
 void
 nsPrintSettingsGTK::SetGtkPrintSettings(GtkPrintSettings *aPrintSettings)
 {
   if (mPrintSettings)
     g_object_unref(mPrintSettings);
   mPrintSettings = (GtkPrintSettings*) g_object_ref(aPrintSettings);
   GtkPaperSize* newPaperSize = gtk_print_settings_get_paper_size(aPrintSettings);
   if (newPaperSize) {
     gtk_paper_size_free(mPaperSize);
     mPaperSize = moz_gtk_paper_size_copy_to_new_custom(newPaperSize);
   }
   SaveNewPageSize();
 }
 /** ---------------------------------------------------
  */
 void
 nsPrintSettingsGTK::SetGtkPrinter(GtkPrinter *aPrinter)
 {
   if (mGTKPrinter)
     g_object_unref(mGTKPrinter);
   mGTKPrinter = (GtkPrinter*) g_object_ref(aPrinter);
 }
 /**
  * Reimplementation of nsPrintSettings functions so that we get the values
  * from the GTK objects rather than our own variables.
  */
 /* attribute long printRange; */
 NS_IMETHODIMP nsPrintSettingsGTK::GetPrintRange(int16_t *aPrintRange)
 {
   NS_ENSURE_ARG_POINTER(aPrintRange);
   if (mPrintSelectionOnly) {
     *aPrintRange = kRangeSelection;
     return NS_OK;
   }
   GtkPrintPages gtkRange = gtk_print_settings_get_print_pages(mPrintSettings);
   if (gtkRange == GTK_PRINT_PAGES_RANGES)
     *aPrintRange = kRangeSpecifiedPageRange;
   else
     *aPrintRange = kRangeAllPages;
   return NS_OK;
 }
 NS_IMETHODIMP nsPrintSettingsGTK::SetPrintRange(int16_t aPrintRange)
 {
   if (aPrintRange == kRangeSelection) {
     mPrintSelectionOnly = true;
     return NS_OK;
   }
   mPrintSelectionOnly = false;
   if (aPrintRange == kRangeSpecifiedPageRange)
     gtk_print_settings_set_print_pages(mPrintSettings, GTK_PRINT_PAGES_RANGES);
   else
     gtk_print_settings_set_print_pages(mPrintSettings, GTK_PRINT_PAGES_ALL);
   return NS_OK;
 }
 /* attribute long startPageRange; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetStartPageRange(int32_t *aStartPageRange)
 {
   gint ctRanges;
   GtkPageRange* lstRanges = gtk_print_settings_get_page_ranges(mPrintSettings, &ctRanges);
   // Make sure we got a range.
   if (ctRanges < 1) {
     *aStartPageRange = 1;
   } else {
     // GTK supports multiple page ranges; gecko only supports 1. So find
     // the lowest start page.
     int32_t start(lstRanges[0].start);
     for (gint ii = 1; ii < ctRanges; ii++) {
       start = std::min(lstRanges[ii].start, start);
     }
     *aStartPageRange = start + 1;
   }
   g_free(lstRanges);
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetStartPageRange(int32_t aStartPageRange)
 {
   int32_t endRange;
   GetEndPageRange(&endRange);
   GtkPageRange gtkRange;
   gtkRange.start = aStartPageRange - 1;
   gtkRange.end = endRange - 1;
   gtk_print_settings_set_page_ranges(mPrintSettings, &gtkRange, 1);
   return NS_OK;
 }
 /* attribute long endPageRange; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetEndPageRange(int32_t *aEndPageRange)
 {
   gint ctRanges;
   GtkPageRange* lstRanges = gtk_print_settings_get_page_ranges(mPrintSettings, &ctRanges);
   if (ctRanges < 1) {
     *aEndPageRange = 1;
   } else {
     int32_t end(lstRanges[0].end);
     for (gint ii = 1; ii < ctRanges; ii++) {
       end = std::max(lstRanges[ii].end, end);
     }
     *aEndPageRange = end + 1;
   }
   g_free(lstRanges);
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetEndPageRange(int32_t aEndPageRange)
 {
   int32_t startRange;
   GetStartPageRange(&startRange);
   GtkPageRange gtkRange;
   gtkRange.start = startRange - 1;
   gtkRange.end = aEndPageRange - 1;
   gtk_print_settings_set_page_ranges(mPrintSettings, &gtkRange, 1);
   return NS_OK;
 }
 /* attribute boolean printReversed; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetPrintReversed(bool *aPrintReversed)
 {
   *aPrintReversed = gtk_print_settings_get_reverse(mPrintSettings);
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetPrintReversed(bool aPrintReversed)
 {
   gtk_print_settings_set_reverse(mPrintSettings, aPrintReversed);
   return NS_OK;
 }
 /* attribute boolean printInColor; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetPrintInColor(bool *aPrintInColor)
 {
   *aPrintInColor = gtk_print_settings_get_use_color(mPrintSettings);
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetPrintInColor(bool aPrintInColor)
 {
   gtk_print_settings_set_use_color(mPrintSettings, aPrintInColor);
   return NS_OK;
 }
 /* attribute short orientation; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetOrientation(int32_t *aOrientation)
 {
   NS_ENSURE_ARG_POINTER(aOrientation);
   GtkPageOrientation gtkOrient = gtk_page_setup_get_orientation(mPageSetup);
   switch (gtkOrient) {
     case GTK_PAGE_ORIENTATION_LANDSCAPE:
     case GTK_PAGE_ORIENTATION_REVERSE_LANDSCAPE:
       *aOrientation = kLandscapeOrientation;
       break;
     case GTK_PAGE_ORIENTATION_PORTRAIT:
     case GTK_PAGE_ORIENTATION_REVERSE_PORTRAIT:
     default:
       *aOrientation = kPortraitOrientation;
   }
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetOrientation(int32_t aOrientation)
 {
   GtkPageOrientation gtkOrient;
   if (aOrientation == kLandscapeOrientation)
     gtkOrient = GTK_PAGE_ORIENTATION_LANDSCAPE;
   else
     gtkOrient = GTK_PAGE_ORIENTATION_PORTRAIT;
   gtk_print_settings_set_orientation(mPrintSettings, gtkOrient);
   gtk_page_setup_set_orientation(mPageSetup, gtkOrient);
   return NS_OK;
 }
 /* attribute wstring toFileName; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetToFileName(char16_t * *aToFileName)
 {
   // Get the gtk output filename
   const char* gtk_output_uri = gtk_print_settings_get(mPrintSettings, GTK_PRINT_SETTINGS_OUTPUT_URI);
   if (!gtk_output_uri) {
     *aToFileName = ToNewUnicode(mToFileName);
     return NS_OK;
   }
   // Convert to an nsIFile
   nsCOMPtr<nsIFile> file;
   nsresult rv = NS_GetFileFromURLSpec(nsDependentCString(gtk_output_uri),
                                       getter_AddRefs(file));
   if (NS_FAILED(rv))
     return rv;
   // Extract the path
   nsAutoString path;
   rv = file->GetPath(path);
   NS_ENSURE_SUCCESS(rv, rv);
   *aToFileName = ToNewUnicode(path);
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetToFileName(const char16_t * aToFileName)
 {
   if (aToFileName[0] == 0) {
     mToFileName.SetLength(0);
     gtk_print_settings_set(mPrintSettings, GTK_PRINT_SETTINGS_OUTPUT_URI,
                            nullptr);
     return NS_OK;
   }
   if (StringEndsWith(nsDependentString(aToFileName), NS_LITERAL_STRING(".ps"))) {
     gtk_print_settings_set(mPrintSettings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT, "ps");
   } else {
     gtk_print_settings_set(mPrintSettings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT, "pdf");
   }
   nsCOMPtr<nsIFile> file;
   nsresult rv = NS_NewLocalFile(nsDependentString(aToFileName), true,
                                 getter_AddRefs(file));
   NS_ENSURE_SUCCESS(rv, rv);
   // Convert the nsIFile to a URL
   nsAutoCString url;
   rv = NS_GetURLSpecFromFile(file, url);
   NS_ENSURE_SUCCESS(rv, rv);
   gtk_print_settings_set(mPrintSettings, GTK_PRINT_SETTINGS_OUTPUT_URI, url.get());
   mToFileName = aToFileName;
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetPrinterName(char16_t * *aPrinter)
 {
   const char* gtkPrintName = gtk_print_settings_get_printer(mPrintSettings);
   if (!gtkPrintName) {
     if (GTK_IS_PRINTER(mGTKPrinter)) {
       gtkPrintName = gtk_printer_get_name(mGTKPrinter);
     } else {
       // This mimics what nsPrintSettingsImpl does when we try to Get before we Set
       nsXPIDLString nullPrintName;
       *aPrinter = ToNewUnicode(nullPrintName);
       return NS_OK;
     }
   }
   *aPrinter = ToNewUnicode(nsDependentCString(gtkPrintName));
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetPrinterName(const char16_t * aPrinter)
 {
   NS_ConvertUTF16toUTF8 gtkPrinter(aPrinter);
   if (StringBeginsWith(gtkPrinter, NS_LITERAL_CSTRING("CUPS/"))) {
     // Strip off "CUPS/"; GTK might recognize the rest
     gtkPrinter.Cut(0, strlen("CUPS/"));
   }
   // Give mPrintSettings the passed-in printer name if either...
   // - it has no printer name stored yet
   // - it has an existing printer name that's different from
   //   the name passed to this function.
   const char* oldPrinterName = gtk_print_settings_get_printer(mPrintSettings);
   if (!oldPrinterName || !gtkPrinter.Equals(oldPrinterName)) {
     mIsInitedFromPrinter = false;
     mIsInitedFromPrefs = false;
     gtk_print_settings_set_printer(mPrintSettings, gtkPrinter.get());
   }
   return NS_OK;
 }
 /* attribute long numCopies; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetNumCopies(int32_t *aNumCopies)
 {
   NS_ENSURE_ARG_POINTER(aNumCopies);
   *aNumCopies = gtk_print_settings_get_n_copies(mPrintSettings);
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetNumCopies(int32_t aNumCopies)
 {
   gtk_print_settings_set_n_copies(mPrintSettings, aNumCopies);
   return NS_OK;
 }
 /* attribute double scaling; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetScaling(double *aScaling)
 {
   *aScaling = gtk_print_settings_get_scale(mPrintSettings) / 100.0;
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetScaling(double aScaling)
 {
   gtk_print_settings_set_scale(mPrintSettings, aScaling * 100.0);
   return NS_OK;
 }
 /* attribute wstring paperName; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetPaperName(char16_t * *aPaperName)
 {
   NS_ENSURE_ARG_POINTER(aPaperName);
   *aPaperName = ToNewUnicode(NS_ConvertUTF8toUTF16(gtk_paper_size_get_name(mPaperSize)));
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetPaperName(const char16_t * aPaperName)
 {
   NS_ConvertUTF16toUTF8 gtkPaperName(aPaperName);
   // Convert these Gecko names to GTK names
   if (gtkPaperName.EqualsIgnoreCase("letter"))
     gtkPaperName.AssignLiteral(GTK_PAPER_NAME_LETTER);
   else if (gtkPaperName.EqualsIgnoreCase("legal"))
     gtkPaperName.AssignLiteral(GTK_PAPER_NAME_LEGAL);
   // Try to get the display name from the name so our paper size fits in the Page Setup dialog.
   GtkPaperSize* paperSize = gtk_paper_size_new(gtkPaperName.get());
   char* displayName = strdup(gtk_paper_size_get_display_name(paperSize));
   gtk_paper_size_free(paperSize);
   paperSize = gtk_paper_size_new_custom(gtkPaperName.get(), displayName,
                                         gtk_paper_size_get_width(mPaperSize, GTK_UNIT_INCH),
                                         gtk_paper_size_get_height(mPaperSize, GTK_UNIT_INCH),
                                         GTK_UNIT_INCH);
   free(displayName);
   gtk_paper_size_free(mPaperSize);
   mPaperSize = paperSize;
   SaveNewPageSize();
   return NS_OK;
 }
 GtkUnit
 nsPrintSettingsGTK::GetGTKUnit(int16_t aGeckoUnit)
 {
   if (aGeckoUnit == kPaperSizeMillimeters)
     return GTK_UNIT_MM;
   else
     return GTK_UNIT_INCH;
 }
 void
 nsPrintSettingsGTK::SaveNewPageSize()
 {
   gtk_print_settings_set_paper_size(mPrintSettings, mPaperSize);
   gtk_page_setup_set_paper_size(mPageSetup, mPaperSize);
 }
 void
 nsPrintSettingsGTK::InitUnwriteableMargin()
 {
   mUnwriteableMargin.SizeTo(
    NS_INCHES_TO_INT_TWIPS(gtk_page_setup_get_top_margin(mPageSetup, GTK_UNIT_INCH)),
    NS_INCHES_TO_INT_TWIPS(gtk_page_setup_get_right_margin(mPageSetup, GTK_UNIT_INCH)),
    NS_INCHES_TO_INT_TWIPS(gtk_page_setup_get_bottom_margin(mPageSetup, GTK_UNIT_INCH)),
    NS_INCHES_TO_INT_TWIPS(gtk_page_setup_get_left_margin(mPageSetup, GTK_UNIT_INCH))
   );
 }
 /**
  * NOTE: Need a custom set of SetUnwriteableMargin functions, because
  * whenever we change mUnwriteableMargin, we must pass the change
  * down to our GTKPageSetup object.  (This is needed in order for us
  * to give the correct default values in nsPrintDialogGTK.)
  *
  * It's important that the following functions pass
  * mUnwriteableMargin values rather than aUnwriteableMargin values
  * to gtk_page_setup_set_[blank]_margin, because the two may not be
  * the same.  (Specifically, negative values of aUnwriteableMargin
  * are ignored by the nsPrintSettings::SetUnwriteableMargin functions.)
  */
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetUnwriteableMarginInTwips(nsIntMargin& aUnwriteableMargin)
 {
   nsPrintSettings::SetUnwriteableMarginInTwips(aUnwriteableMargin);
   gtk_page_setup_set_top_margin(mPageSetup,
            NS_TWIPS_TO_INCHES(mUnwriteableMargin.top), GTK_UNIT_INCH);
   gtk_page_setup_set_left_margin(mPageSetup,
            NS_TWIPS_TO_INCHES(mUnwriteableMargin.left), GTK_UNIT_INCH);
   gtk_page_setup_set_bottom_margin(mPageSetup,
            NS_TWIPS_TO_INCHES(mUnwriteableMargin.bottom), GTK_UNIT_INCH);
   gtk_page_setup_set_right_margin(mPageSetup,
            NS_TWIPS_TO_INCHES(mUnwriteableMargin.right), GTK_UNIT_INCH);
   return NS_OK;
 }
 /* attribute double unwriteableMarginTop; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetUnwriteableMarginTop(double aUnwriteableMarginTop)
 {
   nsPrintSettings::SetUnwriteableMarginTop(aUnwriteableMarginTop);
   gtk_page_setup_set_top_margin(mPageSetup,
            NS_TWIPS_TO_INCHES(mUnwriteableMargin.top), GTK_UNIT_INCH);
   return NS_OK;
 }
 /* attribute double unwriteableMarginLeft; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetUnwriteableMarginLeft(double aUnwriteableMarginLeft)
 {
   nsPrintSettings::SetUnwriteableMarginLeft(aUnwriteableMarginLeft);
   gtk_page_setup_set_left_margin(mPageSetup,
            NS_TWIPS_TO_INCHES(mUnwriteableMargin.left), GTK_UNIT_INCH);
   return NS_OK;
 }
 /* attribute double unwriteableMarginBottom; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetUnwriteableMarginBottom(double aUnwriteableMarginBottom)
 {
   nsPrintSettings::SetUnwriteableMarginBottom(aUnwriteableMarginBottom);
   gtk_page_setup_set_bottom_margin(mPageSetup,
            NS_TWIPS_TO_INCHES(mUnwriteableMargin.bottom), GTK_UNIT_INCH);
   return NS_OK;
 }
 /* attribute double unwriteableMarginRight; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetUnwriteableMarginRight(double aUnwriteableMarginRight)
 {
   nsPrintSettings::SetUnwriteableMarginRight(aUnwriteableMarginRight);
   gtk_page_setup_set_right_margin(mPageSetup,
            NS_TWIPS_TO_INCHES(mUnwriteableMargin.right), GTK_UNIT_INCH);
   return NS_OK;
 }
 /* attribute double paperWidth; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetPaperWidth(double *aPaperWidth)
 {
   NS_ENSURE_ARG_POINTER(aPaperWidth);
   *aPaperWidth = gtk_paper_size_get_width(mPaperSize, GetGTKUnit(mPaperSizeUnit));
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetPaperWidth(double aPaperWidth)
 {
   gtk_paper_size_set_size(mPaperSize,
                           aPaperWidth,
                           gtk_paper_size_get_height(mPaperSize, GetGTKUnit(mPaperSizeUnit)),
                           GetGTKUnit(mPaperSizeUnit));
   SaveNewPageSize();
   return NS_OK;
 }
 /* attribute double paperHeight; */
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetPaperHeight(double *aPaperHeight)
 {
   NS_ENSURE_ARG_POINTER(aPaperHeight);
   *aPaperHeight = gtk_paper_size_get_height(mPaperSize, GetGTKUnit(mPaperSizeUnit));
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetPaperHeight(double aPaperHeight)
 {
   gtk_paper_size_set_size(mPaperSize,
                           gtk_paper_size_get_width(mPaperSize, GetGTKUnit(mPaperSizeUnit)),
                           aPaperHeight,
                           GetGTKUnit(mPaperSizeUnit));
   SaveNewPageSize();
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetPaperSizeUnit(int16_t aPaperSizeUnit)
 {
   // Convert units internally. e.g. they might have set the values while we're still in mm but
   // they change to inch just afterwards, expecting that their sizes are in inches.
   gtk_paper_size_set_size(mPaperSize,
                           gtk_paper_size_get_width(mPaperSize, GetGTKUnit(mPaperSizeUnit)),
                           gtk_paper_size_get_height(mPaperSize, GetGTKUnit(mPaperSizeUnit)),
                           GetGTKUnit(aPaperSizeUnit));
   SaveNewPageSize();
   mPaperSizeUnit = aPaperSizeUnit;
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetEffectivePageSize(double *aWidth, double *aHeight)
 {
   *aWidth  = NS_INCHES_TO_INT_TWIPS(gtk_paper_size_get_width(mPaperSize, GTK_UNIT_INCH));
   *aHeight = NS_INCHES_TO_INT_TWIPS(gtk_paper_size_get_height(mPaperSize, GTK_UNIT_INCH));
   GtkPageOrientation gtkOrient = gtk_page_setup_get_orientation(mPageSetup);
   if (gtkOrient == GTK_PAGE_ORIENTATION_LANDSCAPE ||
       gtkOrient == GTK_PAGE_ORIENTATION_REVERSE_LANDSCAPE) {
     double temp = *aWidth;
     *aWidth = *aHeight;
     *aHeight = temp;
   }
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetupSilentPrinting()
 {
   // We have to get a printer here, rather than when the print settings are constructed.
   // This is because when we request sync, GTK makes us wait in the *event loop* while waiting
   // for the enumeration to finish. We must do this when event loop runs are expected.
   gtk_enumerate_printers(printer_enumerator, this, nullptr, TRUE);
   // XXX If no default printer set, get the first one.
   if (!GTK_IS_PRINTER(mGTKPrinter))
     gtk_enumerate_printers(ref_printer, this, nullptr, TRUE);
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetPageRanges(nsTArray<int32_t> &aPages)
 {
   gint ctRanges;
   GtkPageRange* lstRanges = gtk_print_settings_get_page_ranges(mPrintSettings, &ctRanges);
   aPages.Clear();
   if (ctRanges > 1) {
     for (gint i = 0; i < ctRanges; i++) {
       aPages.AppendElement(lstRanges[i].start+1);
       aPages.AppendElement(lstRanges[i].end+1);
     }
   }
   g_free(lstRanges);
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetResolution(int32_t *aResolution)
 {
   if (!gtk_print_settings_has_key(mPrintSettings, GTK_PRINT_SETTINGS_RESOLUTION))
     return NS_ERROR_FAILURE;
   *aResolution = gtk_print_settings_get_resolution(mPrintSettings);
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetResolution(int32_t aResolution)
 {
   gtk_print_settings_set_resolution(mPrintSettings, aResolution);
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::GetDuplex(int32_t *aDuplex)
 {
   if (!gtk_print_settings_has_key(mPrintSettings, GTK_PRINT_SETTINGS_DUPLEX))
     return NS_ERROR_FAILURE;
   *aDuplex = gtk_print_settings_get_duplex(mPrintSettings);
   return NS_OK;
 }
 NS_IMETHODIMP
 nsPrintSettingsGTK::SetDuplex(int32_t aDuplex)
 {
   MOZ_ASSERT(aDuplex >= GTK_PRINT_DUPLEX_SIMPLEX &&
              aDuplex <= GTK_PRINT_DUPLEX_VERTICAL,
              "value is out of bounds for GtkPrintDuplex enum");
   gtk_print_settings_set_duplex(mPrintSettings, static_cast<GtkPrintDuplex>(aDuplex));
   return NS_OK;
 }

The Tor Browser / annotate

widget/gtk/nsPrintSettingsGTK.cpp@ac0c01689b40 (annotated)

widget/gtk/nsPrintSettingsGTK.cpp