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gecko-dev/widget/windows/nsDeviceContextSpecWin.cpp

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/* -*- 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 "mozilla/ArrayUtils.h"
#include "nsDeviceContextSpecWin.h"
#include "prmem.h"
#include <winspool.h>
#include <tchar.h>
#include "nsAutoPtr.h"
#include "nsIWidget.h"
#include "nsTArray.h"
#include "nsIPrintSettingsWin.h"
#include "nsString.h"
#include "nsCRT.h"
#include "nsIServiceManager.h"
#include "nsReadableUtils.h"
#include "nsStringEnumerator.h"
#include "gfxPDFSurface.h"
#include "gfxWindowsSurface.h"
#include "nsIFileStreams.h"
#include "nsIWindowWatcher.h"
#include "nsIDOMWindow.h"
#include "mozilla/Services.h"
// For NS_CopyNativeToUnicode
#include "nsNativeCharsetUtils.h"
// File Picker
#include "nsIFile.h"
#include "nsIFilePicker.h"
#include "nsIStringBundle.h"
#define NS_ERROR_GFX_PRINTER_BUNDLE_URL "chrome://global/locale/printing.properties"
#include "mozilla/gfx/Logging.h"
#include "mozilla/Logging.h"
PRLogModuleInfo * kWidgetPrintingLogMod = PR_NewLogModule("printing-widget");
#define PR_PL(_p1) MOZ_LOG(kWidgetPrintingLogMod, mozilla::LogLevel::Debug, _p1)
using namespace mozilla;
//----------------------------------------------------------------------------------
// The printer data is shared between the PrinterEnumerator and the nsDeviceContextSpecWin
// The PrinterEnumerator creates the printer info
// but the nsDeviceContextSpecWin cleans it up
// If it gets created (via the Page Setup Dialog) but the user never prints anything
// then it will never be delete, so this class takes care of that.
class GlobalPrinters {
public:
static GlobalPrinters* GetInstance() { return &mGlobalPrinters; }
~GlobalPrinters() { FreeGlobalPrinters(); }
void FreeGlobalPrinters();
bool PrintersAreAllocated() { return mPrinters != nullptr; }
LPWSTR GetItemFromList(int32_t aInx) { return mPrinters?mPrinters->ElementAt(aInx):nullptr; }
nsresult EnumeratePrinterList();
void GetDefaultPrinterName(nsString& aDefaultPrinterName);
uint32_t GetNumPrinters() { return mPrinters?mPrinters->Length():0; }
protected:
GlobalPrinters() {}
nsresult EnumerateNativePrinters();
void ReallocatePrinters();
static GlobalPrinters mGlobalPrinters;
static nsTArray<LPWSTR>* mPrinters;
};
//---------------
// static members
GlobalPrinters GlobalPrinters::mGlobalPrinters;
nsTArray<LPWSTR>* GlobalPrinters::mPrinters = nullptr;
//******************************************************
// Define native paper sizes
//******************************************************
typedef struct {
short mPaperSize; // native enum
double mWidth;
double mHeight;
bool mIsInches;
} NativePaperSizes;
// There are around 40 default print sizes defined by Windows
const NativePaperSizes kPaperSizes[] = {
{DMPAPER_LETTER, 8.5, 11.0, true},
{DMPAPER_LEGAL, 8.5, 14.0, true},
{DMPAPER_A4, 210.0, 297.0, false},
{DMPAPER_B4, 250.0, 354.0, false},
{DMPAPER_B5, 182.0, 257.0, false},
{DMPAPER_TABLOID, 11.0, 17.0, true},
{DMPAPER_LEDGER, 17.0, 11.0, true},
{DMPAPER_STATEMENT, 5.5, 8.5, true},
{DMPAPER_EXECUTIVE, 7.25, 10.5, true},
{DMPAPER_A3, 297.0, 420.0, false},
{DMPAPER_A5, 148.0, 210.0, false},
{DMPAPER_CSHEET, 17.0, 22.0, true},
{DMPAPER_DSHEET, 22.0, 34.0, true},
{DMPAPER_ESHEET, 34.0, 44.0, true},
{DMPAPER_LETTERSMALL, 8.5, 11.0, true},
{DMPAPER_A4SMALL, 210.0, 297.0, false},
{DMPAPER_FOLIO, 8.5, 13.0, true},
{DMPAPER_QUARTO, 215.0, 275.0, false},
{DMPAPER_10X14, 10.0, 14.0, true},
{DMPAPER_11X17, 11.0, 17.0, true},
{DMPAPER_NOTE, 8.5, 11.0, true},
{DMPAPER_ENV_9, 3.875, 8.875, true},
{DMPAPER_ENV_10, 40.125, 9.5, true},
{DMPAPER_ENV_11, 4.5, 10.375, true},
{DMPAPER_ENV_12, 4.75, 11.0, true},
{DMPAPER_ENV_14, 5.0, 11.5, true},
{DMPAPER_ENV_DL, 110.0, 220.0, false},
{DMPAPER_ENV_C5, 162.0, 229.0, false},
{DMPAPER_ENV_C3, 324.0, 458.0, false},
{DMPAPER_ENV_C4, 229.0, 324.0, false},
{DMPAPER_ENV_C6, 114.0, 162.0, false},
{DMPAPER_ENV_C65, 114.0, 229.0, false},
{DMPAPER_ENV_B4, 250.0, 353.0, false},
{DMPAPER_ENV_B5, 176.0, 250.0, false},
{DMPAPER_ENV_B6, 176.0, 125.0, false},
{DMPAPER_ENV_ITALY, 110.0, 230.0, false},
{DMPAPER_ENV_MONARCH, 3.875, 7.5, true},
{DMPAPER_ENV_PERSONAL, 3.625, 6.5, true},
{DMPAPER_FANFOLD_US, 14.875, 11.0, true},
{DMPAPER_FANFOLD_STD_GERMAN, 8.5, 12.0, true},
{DMPAPER_FANFOLD_LGL_GERMAN, 8.5, 13.0, true},
};
const int32_t kNumPaperSizes = 41;
//----------------------------------------------------------------------------------
nsDeviceContextSpecWin::nsDeviceContextSpecWin()
{
mDriverName = nullptr;
mDeviceName = nullptr;
mDevMode = nullptr;
}
//----------------------------------------------------------------------------------
NS_IMPL_ISUPPORTS(nsDeviceContextSpecWin, nsIDeviceContextSpec)
nsDeviceContextSpecWin::~nsDeviceContextSpecWin()
{
SetDeviceName(nullptr);
SetDriverName(nullptr);
SetDevMode(nullptr);
nsCOMPtr<nsIPrintSettingsWin> psWin(do_QueryInterface(mPrintSettings));
if (psWin) {
psWin->SetDeviceName(nullptr);
psWin->SetDriverName(nullptr);
psWin->SetDevMode(nullptr);
}
// Free them, we won't need them for a while
GlobalPrinters::GetInstance()->FreeGlobalPrinters();
}
//------------------------------------------------------------------
// helper
static char16_t * GetDefaultPrinterNameFromGlobalPrinters()
{
nsAutoString printerName;
GlobalPrinters::GetInstance()->GetDefaultPrinterName(printerName);
return ToNewUnicode(printerName);
}
//----------------------------------------------------------------------------------
NS_IMETHODIMP nsDeviceContextSpecWin::Init(nsIWidget* aWidget,
nsIPrintSettings* aPrintSettings,
bool aIsPrintPreview)
{
mPrintSettings = aPrintSettings;
nsresult rv = NS_ERROR_GFX_PRINTER_NO_PRINTER_AVAILABLE;
if (aPrintSettings) {
nsCOMPtr<nsIPrintSettingsWin> psWin(do_QueryInterface(aPrintSettings));
if (psWin) {
char16_t* deviceName;
char16_t* driverName;
psWin->GetDeviceName(&deviceName); // creates new memory (makes a copy)
psWin->GetDriverName(&driverName); // creates new memory (makes a copy)
LPDEVMODEW devMode;
psWin->GetDevMode(&devMode); // creates new memory (makes a copy)
if (deviceName && driverName && devMode) {
// Scaling is special, it is one of the few
// devMode items that we control in layout
if (devMode->dmFields & DM_SCALE) {
double scale = double(devMode->dmScale) / 100.0f;
if (scale != 1.0) {
aPrintSettings->SetScaling(scale);
devMode->dmScale = 100;
}
}
SetDeviceName(deviceName);
SetDriverName(driverName);
SetDevMode(devMode);
// clean up
free(deviceName);
free(driverName);
return NS_OK;
} else {
PR_PL(("***** nsDeviceContextSpecWin::Init - deviceName/driverName/devMode was NULL!\n"));
if (deviceName) free(deviceName);
if (driverName) free(driverName);
if (devMode) ::HeapFree(::GetProcessHeap(), 0, devMode);
}
}
} else {
PR_PL(("***** nsDeviceContextSpecWin::Init - aPrintSettingswas NULL!\n"));
}
// Get the Print Name to be used
char16_t * printerName = nullptr;
if (mPrintSettings) {
mPrintSettings->GetPrinterName(&printerName);
}
// If there is no name then use the default printer
if (!printerName || (printerName && !*printerName)) {
printerName = GetDefaultPrinterNameFromGlobalPrinters();
}
NS_ASSERTION(printerName, "We have to have a printer name");
if (!printerName || !*printerName) return rv;
return GetDataFromPrinter(printerName, mPrintSettings);
}
//----------------------------------------------------------
// Helper Function - Free and reallocate the string
static void CleanAndCopyString(wchar_t*& aStr, const wchar_t* aNewStr)
{
if (aStr != nullptr) {
if (aNewStr != nullptr && wcslen(aStr) > wcslen(aNewStr)) { // reuse it if we can
wcscpy(aStr, aNewStr);
return;
} else {
PR_Free(aStr);
aStr = nullptr;
}
}
if (nullptr != aNewStr) {
aStr = (wchar_t *)PR_Malloc(sizeof(wchar_t)*(wcslen(aNewStr) + 1));
wcscpy(aStr, aNewStr);
}
}
NS_IMETHODIMP nsDeviceContextSpecWin::GetSurfaceForPrinter(gfxASurface **surface)
{
NS_ASSERTION(mDevMode, "DevMode can't be NULL here");
nsRefPtr<gfxASurface> newSurface;
int16_t outputFormat = 0;
if (mPrintSettings) {
mPrintSettings->GetOutputFormat(&outputFormat);
}
if (outputFormat == nsIPrintSettings::kOutputFormatPDF) {
nsXPIDLString filename;
mPrintSettings->GetToFileName(getter_Copies(filename));
double width, height;
mPrintSettings->GetEffectivePageSize(&width, &height);
if (width <= 0 || height <= 0) {
return NS_ERROR_FAILURE;
}
// convert twips to points
width /= TWIPS_PER_POINT_FLOAT;
height /= TWIPS_PER_POINT_FLOAT;
nsCOMPtr<nsIFile> file = do_CreateInstance("@mozilla.org/file/local;1");
nsresult rv = file->InitWithPath(filename);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIFileOutputStream> stream = do_CreateInstance("@mozilla.org/network/file-output-stream;1");
rv = stream->Init(file, -1, -1, 0);
if (NS_FAILED(rv))
return rv;
newSurface = new gfxPDFSurface(stream, gfxSize(width, height));
} else {
if (mDevMode) {
NS_WARN_IF_FALSE(mDriverName, "No driver!");
HDC dc = ::CreateDCW(mDriverName, mDeviceName, nullptr, mDevMode);
if (!dc) {
gfxCriticalError(gfxCriticalError::DefaultOptions(false)) << "Failed to create device context in GetSurfaceForPrinter";
return NS_ERROR_GFX_PRINTER_NAME_NOT_FOUND;
}
// have this surface take over ownership of this DC
newSurface = new gfxWindowsSurface(dc, gfxWindowsSurface::FLAG_TAKE_DC | gfxWindowsSurface::FLAG_FOR_PRINTING);
if (newSurface->GetType() == (gfxSurfaceType)-1) {
gfxCriticalError() << "Invalid windows surface from " << gfx::hexa(dc);
newSurface = nullptr;
}
}
}
if (newSurface) {
*surface = newSurface;
NS_ADDREF(*surface);
return NS_OK;
}
*surface = nullptr;
return NS_ERROR_FAILURE;
}
//----------------------------------------------------------------------------------
void nsDeviceContextSpecWin::SetDeviceName(char16ptr_t aDeviceName)
{
CleanAndCopyString(mDeviceName, aDeviceName);
}
//----------------------------------------------------------------------------------
void nsDeviceContextSpecWin::SetDriverName(char16ptr_t aDriverName)
{
CleanAndCopyString(mDriverName, aDriverName);
}
//----------------------------------------------------------------------------------
void nsDeviceContextSpecWin::SetDevMode(LPDEVMODEW aDevMode)
{
if (mDevMode) {
::HeapFree(::GetProcessHeap(), 0, mDevMode);
}
mDevMode = aDevMode;
}
//------------------------------------------------------------------
void
nsDeviceContextSpecWin::GetDevMode(LPDEVMODEW &aDevMode)
{
aDevMode = mDevMode;
}
//----------------------------------------------------------------------------------
// Map an incoming size to a Windows Native enum in the DevMode
static void
MapPaperSizeToNativeEnum(LPDEVMODEW aDevMode,
int16_t aType,
double aW,
double aH)
{
#ifdef DEBUG_rods
BOOL doingOrientation = aDevMode->dmFields & DM_ORIENTATION;
BOOL doingPaperSize = aDevMode->dmFields & DM_PAPERSIZE;
BOOL doingPaperLength = aDevMode->dmFields & DM_PAPERLENGTH;
BOOL doingPaperWidth = aDevMode->dmFields & DM_PAPERWIDTH;
#endif
for (int32_t i=0;i<kNumPaperSizes;i++) {
if (kPaperSizes[i].mWidth == aW && kPaperSizes[i].mHeight == aH) {
aDevMode->dmPaperSize = kPaperSizes[i].mPaperSize;
aDevMode->dmFields &= ~DM_PAPERLENGTH;
aDevMode->dmFields &= ~DM_PAPERWIDTH;
aDevMode->dmFields |= DM_PAPERSIZE;
return;
}
}
short width = 0;
short height = 0;
if (aType == nsIPrintSettings::kPaperSizeInches) {
width = short(NS_TWIPS_TO_MILLIMETERS(NS_INCHES_TO_TWIPS(float(aW))) / 10);
height = short(NS_TWIPS_TO_MILLIMETERS(NS_INCHES_TO_TWIPS(float(aH))) / 10);
} else if (aType == nsIPrintSettings::kPaperSizeMillimeters) {
width = short(aW / 10.0);
height = short(aH / 10.0);
} else {
return; // don't set anything
}
// width and height is in
aDevMode->dmPaperSize = 0;
aDevMode->dmPaperWidth = width;
aDevMode->dmPaperLength = height;
aDevMode->dmFields |= DM_PAPERSIZE;
aDevMode->dmFields |= DM_PAPERLENGTH;
aDevMode->dmFields |= DM_PAPERWIDTH;
}
//----------------------------------------------------------------------------------
// Setup Paper Size & Orientation options into the DevMode
//
static void
SetupDevModeFromSettings(LPDEVMODEW aDevMode, nsIPrintSettings* aPrintSettings)
{
// Setup paper size
if (aPrintSettings) {
int16_t type;
aPrintSettings->GetPaperSizeType(&type);
if (type == nsIPrintSettings::kPaperSizeNativeData) {
int16_t paperEnum;
aPrintSettings->GetPaperData(&paperEnum);
aDevMode->dmPaperSize = paperEnum;
aDevMode->dmFields &= ~DM_PAPERLENGTH;
aDevMode->dmFields &= ~DM_PAPERWIDTH;
aDevMode->dmFields |= DM_PAPERSIZE;
} else {
int16_t unit;
double width, height;
aPrintSettings->GetPaperSizeUnit(&unit);
aPrintSettings->GetPaperWidth(&width);
aPrintSettings->GetPaperHeight(&height);
MapPaperSizeToNativeEnum(aDevMode, unit, width, height);
}
// Setup Orientation
int32_t orientation;
aPrintSettings->GetOrientation(&orientation);
aDevMode->dmOrientation = orientation == nsIPrintSettings::kPortraitOrientation?DMORIENT_PORTRAIT:DMORIENT_LANDSCAPE;
aDevMode->dmFields |= DM_ORIENTATION;
// Setup Number of Copies
int32_t copies;
aPrintSettings->GetNumCopies(&copies);
aDevMode->dmCopies = copies;
aDevMode->dmFields |= DM_COPIES;
}
}
#define DISPLAY_LAST_ERROR
//----------------------------------------------------------------------------------
// Setup the object's data member with the selected printer's data
nsresult
nsDeviceContextSpecWin::GetDataFromPrinter(char16ptr_t aName, nsIPrintSettings* aPS)
{
nsresult rv = NS_ERROR_FAILURE;
if (!GlobalPrinters::GetInstance()->PrintersAreAllocated()) {
rv = GlobalPrinters::GetInstance()->EnumeratePrinterList();
if (NS_FAILED(rv)) {
PR_PL(("***** nsDeviceContextSpecWin::GetDataFromPrinter - Couldn't enumerate printers!\n"));
DISPLAY_LAST_ERROR
}
NS_ENSURE_SUCCESS(rv, rv);
}
HANDLE hPrinter = nullptr;
wchar_t *name = (wchar_t*)aName; // Windows APIs use non-const name argument
BOOL status = ::OpenPrinterW(name, &hPrinter, nullptr);
if (status) {
LPDEVMODEW pDevMode;
DWORD dwNeeded, dwRet;
// Allocate a buffer of the correct size.
dwNeeded = ::DocumentPropertiesW(nullptr, hPrinter, name, nullptr, nullptr, 0);
pDevMode = (LPDEVMODEW)::HeapAlloc (::GetProcessHeap(), HEAP_ZERO_MEMORY, dwNeeded);
if (!pDevMode) return NS_ERROR_FAILURE;
// Get the default DevMode for the printer and modify it for our needs.
dwRet = DocumentPropertiesW(nullptr, hPrinter, name,
pDevMode, nullptr, DM_OUT_BUFFER);
if (dwRet == IDOK && aPS) {
SetupDevModeFromSettings(pDevMode, aPS);
// Sets back the changes we made to the DevMode into the Printer Driver
dwRet = ::DocumentPropertiesW(nullptr, hPrinter, name,
pDevMode, pDevMode,
DM_IN_BUFFER | DM_OUT_BUFFER);
}
if (dwRet != IDOK) {
::HeapFree(::GetProcessHeap(), 0, pDevMode);
::ClosePrinter(hPrinter);
PR_PL(("***** nsDeviceContextSpecWin::GetDataFromPrinter - DocumentProperties call failed code: %d/0x%x\n", dwRet, dwRet));
DISPLAY_LAST_ERROR
return NS_ERROR_FAILURE;
}
SetDevMode(pDevMode); // cache the pointer and takes responsibility for the memory
SetDeviceName(aName);
SetDriverName(L"WINSPOOL");
::ClosePrinter(hPrinter);
rv = NS_OK;
} else {
rv = NS_ERROR_GFX_PRINTER_NAME_NOT_FOUND;
PR_PL(("***** nsDeviceContextSpecWin::GetDataFromPrinter - Couldn't open printer: [%s]\n", NS_ConvertUTF16toUTF8(aName).get()));
DISPLAY_LAST_ERROR
}
return rv;
}
//----------------------------------------------------------------------------------
// Setup Paper Size options into the DevMode
//
// When using a data member it may be a HGLOCAL or LPDEVMODE
// if it is a HGLOBAL then we need to "lock" it to get the LPDEVMODE
// and unlock it when we are done.
void
nsDeviceContextSpecWin::SetupPaperInfoFromSettings()
{
LPDEVMODEW devMode;
GetDevMode(devMode);
NS_ASSERTION(devMode, "DevMode can't be NULL here");
if (devMode) {
SetupDevModeFromSettings(devMode, mPrintSettings);
}
}
//----------------------------------------------------------------------------------
// Helper Function - Free and reallocate the string
nsresult
nsDeviceContextSpecWin::SetPrintSettingsFromDevMode(nsIPrintSettings* aPrintSettings,
LPDEVMODEW aDevMode)
{
if (aPrintSettings == nullptr) {
return NS_ERROR_FAILURE;
}
aPrintSettings->SetIsInitializedFromPrinter(true);
BOOL doingNumCopies = aDevMode->dmFields & DM_COPIES;
BOOL doingOrientation = aDevMode->dmFields & DM_ORIENTATION;
BOOL doingPaperSize = aDevMode->dmFields & DM_PAPERSIZE;
BOOL doingPaperLength = aDevMode->dmFields & DM_PAPERLENGTH;
BOOL doingPaperWidth = aDevMode->dmFields & DM_PAPERWIDTH;
if (doingOrientation) {
int32_t orientation = aDevMode->dmOrientation == DMORIENT_PORTRAIT?
int32_t(nsIPrintSettings::kPortraitOrientation):nsIPrintSettings::kLandscapeOrientation;
aPrintSettings->SetOrientation(orientation);
}
// Setup Number of Copies
if (doingNumCopies) {
aPrintSettings->SetNumCopies(int32_t(aDevMode->dmCopies));
}
if (aDevMode->dmFields & DM_SCALE) {
double scale = double(aDevMode->dmScale) / 100.0f;
if (scale != 1.0) {
aPrintSettings->SetScaling(scale);
aDevMode->dmScale = 100;
// To turn this on you must change where the mPrt->mShrinkToFit is being set in the DocumentViewer
//aPrintSettings->SetShrinkToFit(false);
}
}
if (doingPaperSize) {
aPrintSettings->SetPaperSizeType(nsIPrintSettings::kPaperSizeNativeData);
aPrintSettings->SetPaperData(aDevMode->dmPaperSize);
for (int32_t i=0;i<kNumPaperSizes;i++) {
if (kPaperSizes[i].mPaperSize == aDevMode->dmPaperSize) {
aPrintSettings->SetPaperSizeUnit(kPaperSizes[i].mIsInches
?int16_t(nsIPrintSettings::kPaperSizeInches):nsIPrintSettings::kPaperSizeMillimeters);
break;
}
}
} else if (doingPaperLength && doingPaperWidth) {
bool found = false;
for (int32_t i=0;i<kNumPaperSizes;i++) {
if (kPaperSizes[i].mPaperSize == aDevMode->dmPaperSize) {
aPrintSettings->SetPaperSizeType(nsIPrintSettings::kPaperSizeDefined);
aPrintSettings->SetPaperWidth(kPaperSizes[i].mWidth);
aPrintSettings->SetPaperHeight(kPaperSizes[i].mHeight);
aPrintSettings->SetPaperSizeUnit(kPaperSizes[i].mIsInches
?int16_t(nsIPrintSettings::kPaperSizeInches):nsIPrintSettings::kPaperSizeMillimeters);
found = true;
break;
}
}
if (!found) {
return NS_ERROR_FAILURE;
}
} else {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
//***********************************************************
// Printer Enumerator
//***********************************************************
nsPrinterEnumeratorWin::nsPrinterEnumeratorWin()
{
}
nsPrinterEnumeratorWin::~nsPrinterEnumeratorWin()
{
// Do not free printers here
// GlobalPrinters::GetInstance()->FreeGlobalPrinters();
}
NS_IMPL_ISUPPORTS(nsPrinterEnumeratorWin, nsIPrinterEnumerator)
//----------------------------------------------------------------------------------
// Return the Default Printer name
NS_IMETHODIMP
nsPrinterEnumeratorWin::GetDefaultPrinterName(char16_t * *aDefaultPrinterName)
{
NS_ENSURE_ARG_POINTER(aDefaultPrinterName);
*aDefaultPrinterName = GetDefaultPrinterNameFromGlobalPrinters(); // helper
return NS_OK;
}
NS_IMETHODIMP
nsPrinterEnumeratorWin::InitPrintSettingsFromPrinter(const char16_t *aPrinterName, nsIPrintSettings *aPrintSettings)
{
NS_ENSURE_ARG_POINTER(aPrinterName);
NS_ENSURE_ARG_POINTER(aPrintSettings);
if (!*aPrinterName) {
return NS_OK;
}
nsRefPtr<nsDeviceContextSpecWin> devSpecWin = new nsDeviceContextSpecWin();
if (!devSpecWin) return NS_ERROR_OUT_OF_MEMORY;
if (NS_FAILED(GlobalPrinters::GetInstance()->EnumeratePrinterList())) {
return NS_ERROR_FAILURE;
}
devSpecWin->GetDataFromPrinter(aPrinterName);
LPDEVMODEW devmode;
devSpecWin->GetDevMode(devmode);
NS_ASSERTION(devmode, "DevMode can't be NULL here");
if (devmode) {
aPrintSettings->SetPrinterName(aPrinterName);
nsDeviceContextSpecWin::SetPrintSettingsFromDevMode(aPrintSettings, devmode);
}
// Free them, we won't need them for a while
GlobalPrinters::GetInstance()->FreeGlobalPrinters();
return NS_OK;
}
//----------------------------------------------------------------------------------
// Enumerate all the Printers from the global array and pass their
// names back (usually to script)
NS_IMETHODIMP
nsPrinterEnumeratorWin::GetPrinterNameList(nsIStringEnumerator **aPrinterNameList)
{
NS_ENSURE_ARG_POINTER(aPrinterNameList);
*aPrinterNameList = nullptr;
nsresult rv = GlobalPrinters::GetInstance()->EnumeratePrinterList();
if (NS_FAILED(rv)) {
PR_PL(("***** nsDeviceContextSpecWin::GetPrinterNameList - Couldn't enumerate printers!\n"));
return rv;
}
uint32_t numPrinters = GlobalPrinters::GetInstance()->GetNumPrinters();
nsTArray<nsString> *printers = new nsTArray<nsString>(numPrinters);
if (!printers)
return NS_ERROR_OUT_OF_MEMORY;
uint32_t printerInx = 0;
while( printerInx < numPrinters ) {
LPWSTR name = GlobalPrinters::GetInstance()->GetItemFromList(printerInx++);
printers->AppendElement(nsDependentString(name));
}
return NS_NewAdoptingStringEnumerator(aPrinterNameList, printers);
}
//----------------------------------------------------------------------------------
// Display the AdvancedDocumentProperties for the selected Printer
NS_IMETHODIMP nsPrinterEnumeratorWin::DisplayPropertiesDlg(const char16_t *aPrinterName, nsIPrintSettings* aPrintSettings)
{
// Implementation removed because it is unused
return NS_OK;
}
//----------------------------------------------------------------------------------
//-- Global Printers
//----------------------------------------------------------------------------------
//----------------------------------------------------------------------------------
// THe array hold the name and port for each printer
void
GlobalPrinters::ReallocatePrinters()
{
if (PrintersAreAllocated()) {
FreeGlobalPrinters();
}
mPrinters = new nsTArray<LPWSTR>();
NS_ASSERTION(mPrinters, "Printers Array is NULL!");
}
//----------------------------------------------------------------------------------
void
GlobalPrinters::FreeGlobalPrinters()
{
if (mPrinters != nullptr) {
for (uint32_t i=0;i<mPrinters->Length();i++) {
free(mPrinters->ElementAt(i));
}
delete mPrinters;
mPrinters = nullptr;
}
}
//----------------------------------------------------------------------------------
nsresult
GlobalPrinters::EnumerateNativePrinters()
{
nsresult rv = NS_ERROR_GFX_PRINTER_NO_PRINTER_AVAILABLE;
PR_PL(("-----------------------\n"));
PR_PL(("EnumerateNativePrinters\n"));
WCHAR szDefaultPrinterName[1024];
DWORD status = GetProfileStringW(L"devices", 0, L",",
szDefaultPrinterName,
ArrayLength(szDefaultPrinterName));
if (status > 0) {
DWORD count = 0;
LPWSTR sPtr = szDefaultPrinterName;
LPWSTR ePtr = szDefaultPrinterName + status;
LPWSTR prvPtr = sPtr;
while (sPtr < ePtr) {
if (*sPtr == 0) {
LPWSTR name = wcsdup(prvPtr);
mPrinters->AppendElement(name);
PR_PL(("Printer Name: %s\n", prvPtr));
prvPtr = sPtr+1;
count++;
}
sPtr++;
}
rv = NS_OK;
}
PR_PL(("-----------------------\n"));
return rv;
}
//------------------------------------------------------------------
// Uses the GetProfileString to get the default printer from the registry
void
GlobalPrinters::GetDefaultPrinterName(nsString& aDefaultPrinterName)
{
aDefaultPrinterName.Truncate();
WCHAR szDefaultPrinterName[1024];
DWORD status = GetProfileStringW(L"windows", L"device", 0,
szDefaultPrinterName,
ArrayLength(szDefaultPrinterName));
if (status > 0) {
WCHAR comma = ',';
LPWSTR sPtr = szDefaultPrinterName;
while (*sPtr != comma && *sPtr != 0)
sPtr++;
if (*sPtr == comma) {
*sPtr = 0;
}
aDefaultPrinterName = szDefaultPrinterName;
} else {
aDefaultPrinterName = EmptyString();
}
PR_PL(("DEFAULT PRINTER [%s]\n", aDefaultPrinterName.get()));
}
//----------------------------------------------------------------------------------
// This goes and gets the list of available printers and puts
// the default printer at the beginning of the list
nsresult
GlobalPrinters::EnumeratePrinterList()
{
// reallocate and get a new list each time it is asked for
// this deletes the list and re-allocates them
ReallocatePrinters();
// any of these could only fail with an OUT_MEMORY_ERROR
// PRINTER_ENUM_LOCAL should get the network printers on Win95
nsresult rv = EnumerateNativePrinters();
if (NS_FAILED(rv)) return rv;
// get the name of the default printer
nsAutoString defPrinterName;
GetDefaultPrinterName(defPrinterName);
// put the default printer at the beginning of list
if (!defPrinterName.IsEmpty()) {
for (uint32_t i=0;i<mPrinters->Length();i++) {
LPWSTR name = mPrinters->ElementAt(i);
if (defPrinterName.Equals(name)) {
if (i > 0) {
LPWSTR ptr = mPrinters->ElementAt(0);
mPrinters->ElementAt(0) = name;
mPrinters->ElementAt(i) = ptr;
}
break;
}
}
}
// make sure we at least tried to get the printers
if (!PrintersAreAllocated()) {
PR_PL(("***** nsDeviceContextSpecWin::EnumeratePrinterList - Printers aren`t allocated\n"));
return NS_ERROR_FAILURE;
}
return NS_OK;
}
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