The Tor Browser: widget/windows/nsPrintSettingsWin.cpp@ac0c01689b40 (annotated)

widget/windows/nsPrintSettingsWin.cpp@ac0c01689b40 (annotated)

widget/windows/nsPrintSettingsWin.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 "nsPrintSettingsWin.h"
 #include "nsCRT.h"
 NS_IMPL_ISUPPORTS_INHERITED(nsPrintSettingsWin,
                             nsPrintSettings,
                             nsIPrintSettingsWin)
 /** ---------------------------------------------------
  *  See documentation in nsPrintSettingsWin.h
  *	@update
  */
 nsPrintSettingsWin::nsPrintSettingsWin() :
   nsPrintSettings(),
   mDeviceName(nullptr),
   mDriverName(nullptr),
   mDevMode(nullptr)
 {
 }
 /** ---------------------------------------------------
  *  See documentation in nsPrintSettingsWin.h
  *	@update
  */
 nsPrintSettingsWin::nsPrintSettingsWin(const nsPrintSettingsWin& aPS) :
   mDeviceName(nullptr),
   mDriverName(nullptr),
   mDevMode(nullptr)
 {
   *this = aPS;
 }
 /** ---------------------------------------------------
  *  See documentation in nsPrintSettingsWin.h
  *	@update
  */
 nsPrintSettingsWin::~nsPrintSettingsWin()
 {
   if (mDeviceName) nsMemory::Free(mDeviceName);
   if (mDriverName) nsMemory::Free(mDriverName);
   if (mDevMode) ::HeapFree(::GetProcessHeap(), 0, mDevMode);
 }
 /* [noscript] attribute charPtr deviceName; */
 NS_IMETHODIMP nsPrintSettingsWin::SetDeviceName(const char16_t * aDeviceName)
 {
   if (mDeviceName) {
     nsMemory::Free(mDeviceName);
   }
   mDeviceName = aDeviceName?wcsdup(char16ptr_t(aDeviceName)):nullptr;
   return NS_OK;
 }
 NS_IMETHODIMP nsPrintSettingsWin::GetDeviceName(char16_t **aDeviceName)
 {
   NS_ENSURE_ARG_POINTER(aDeviceName);
   *aDeviceName = mDeviceName?reinterpret_cast<char16_t*>(wcsdup(mDeviceName)):nullptr;
   return NS_OK;
 }
 /* [noscript] attribute charPtr driverName; */
 NS_IMETHODIMP nsPrintSettingsWin::SetDriverName(const char16_t * aDriverName)
 {
   if (mDriverName) {
     nsMemory::Free(mDriverName);
   }
   mDriverName = aDriverName?wcsdup(char16ptr_t(aDriverName)):nullptr;
   return NS_OK;
 }
 NS_IMETHODIMP nsPrintSettingsWin::GetDriverName(char16_t **aDriverName)
 {
   NS_ENSURE_ARG_POINTER(aDriverName);
   *aDriverName = mDriverName?reinterpret_cast<char16_t*>(wcsdup(mDriverName)):nullptr;
   return NS_OK;
 }
 void nsPrintSettingsWin::CopyDevMode(DEVMODEW* aInDevMode, DEVMODEW *& aOutDevMode)
 {
   aOutDevMode = nullptr;
   size_t size = aInDevMode->dmSize + aInDevMode->dmDriverExtra;
   aOutDevMode = (LPDEVMODEW)::HeapAlloc (::GetProcessHeap(), HEAP_ZERO_MEMORY, size);
   if (aOutDevMode) {
     memcpy(aOutDevMode, aInDevMode, size);
   }
 }
 /* [noscript] attribute nsDevMode devMode; */
 NS_IMETHODIMP nsPrintSettingsWin::GetDevMode(DEVMODEW * *aDevMode)
 {
   NS_ENSURE_ARG_POINTER(aDevMode);
   if (mDevMode) {
     CopyDevMode(mDevMode, *aDevMode);
   } else {
     *aDevMode = nullptr;
   }
   return NS_OK;
 }
 NS_IMETHODIMP nsPrintSettingsWin::SetDevMode(DEVMODEW * aDevMode)
 {
   if (mDevMode) {
     ::HeapFree(::GetProcessHeap(), 0, mDevMode);
     mDevMode = nullptr;
   }
   if (aDevMode) {
     CopyDevMode(aDevMode, mDevMode);
   }
   return NS_OK;
 }
 //-------------------------------------------
 nsresult
 nsPrintSettingsWin::_Clone(nsIPrintSettings **_retval)
 {
   nsPrintSettingsWin* printSettings = new nsPrintSettingsWin(*this);
   return printSettings->QueryInterface(NS_GET_IID(nsIPrintSettings), (void**)_retval); // ref counts
 }
 //-------------------------------------------
 nsPrintSettingsWin& nsPrintSettingsWin::operator=(const nsPrintSettingsWin& rhs)
 {
   if (this == &rhs) {
     return *this;
   }
   ((nsPrintSettings&) *this) = rhs;
   if (mDeviceName) {
     free(mDeviceName);
   }
   if (mDriverName) {
     free(mDriverName);
   }
   // Use free because we used the native malloc to create the memory
   if (mDevMode) {
     ::HeapFree(::GetProcessHeap(), 0, mDevMode);
   }
   mDeviceName = rhs.mDeviceName?wcsdup(rhs.mDeviceName):nullptr;
   mDriverName = rhs.mDriverName?wcsdup(rhs.mDriverName):nullptr;
   if (rhs.mDevMode) {
     CopyDevMode(rhs.mDevMode, mDevMode);
   } else {
     mDevMode = nullptr;
   }
   return *this;
 }
 //-------------------------------------------
 /* void assign (in nsIPrintSettings aPS); */
 nsresult
 nsPrintSettingsWin::_Assign(nsIPrintSettings *aPS)
 {
   nsPrintSettingsWin *psWin = static_cast<nsPrintSettingsWin*>(aPS);
   *this = *psWin;
   return NS_OK;
 }
 //----------------------------------------------------------------------
 // Testing of assign and clone
 // This define turns on the testing module below
 // so at start up it writes and reads the prefs.
 #ifdef DEBUG_rodsX
 #include "nsIPrintOptions.h"
 #include "nsIServiceManager.h"
 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->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);
     nsCOMPtr<nsIPrintSettings> ps2;
     if (NS_SUCCEEDED(rv)) {
       rv = printService->CreatePrintSettings(getter_AddRefs(ps2));
     }
     ps2->Assign(ps);
     nsCOMPtr<nsIPrintSettings> psClone;
     ps2->Clone(getter_AddRefs(psClone));
   }
 }
 Tester gTester;
 #endif

The Tor Browser / annotate

widget/windows/nsPrintSettingsWin.cpp@ac0c01689b40 (annotated)

widget/windows/nsPrintSettingsWin.cpp