forked from mirrors/gecko-dev
c6fa9e48a9
This updates the settings with the correct paper ID as well. It also removes the printable size fields from the Windows settings now that unwriteable margins are being used consistently. Differential Revision: https://phabricator.services.mozilla.com/D89911
127 lines
4.2 KiB
C++
127 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsPrintSettingsServiceWin.h"
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#include "nsCOMPtr.h"
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#include "nsPrintSettingsWin.h"
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#include "nsPrintDialogUtil.h"
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#include "nsGfxCIID.h"
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#include "nsIServiceManager.h"
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#include "nsWindowsHelpers.h"
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#include "ipc/IPCMessageUtils.h"
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const char kPrinterListContractID[] = "@mozilla.org/gfx/printerlist;1";
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using namespace mozilla::embedding;
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NS_IMETHODIMP
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nsPrintSettingsServiceWin::SerializeToPrintData(nsIPrintSettings* aSettings,
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PrintData* data) {
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nsresult rv = nsPrintSettingsService::SerializeToPrintData(aSettings, data);
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIPrintSettingsWin> psWin = do_QueryInterface(aSettings);
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if (!psWin) {
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return NS_ERROR_FAILURE;
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}
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nsAutoString deviceName;
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nsAutoString driverName;
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psWin->GetDeviceName(deviceName);
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psWin->GetDriverName(driverName);
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data->deviceName().Assign(deviceName);
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data->driverName().Assign(driverName);
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// When creating the print dialog on Windows, we only need to send certain
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// print settings information from the parent to the child not vice versa.
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if (XRE_IsParentProcess()) {
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// A DEVMODE can actually be of arbitrary size. If it turns out that it'll
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// make our IPC message larger than the limit, then we'll error out.
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LPDEVMODEW devModeRaw;
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psWin->GetDevMode(&devModeRaw); // This actually allocates a copy of the
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// the nsIPrintSettingsWin DEVMODE, so
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// we're now responsible for deallocating
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// it. We'll use an nsAutoDevMode helper
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// to do this.
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if (devModeRaw) {
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nsAutoDevMode devMode(devModeRaw);
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devModeRaw = nullptr;
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size_t devModeTotalSize = devMode->dmSize + devMode->dmDriverExtra;
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size_t msgTotalSize = sizeof(PrintData) + devModeTotalSize;
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if (msgTotalSize > IPC::Channel::kMaximumMessageSize / 2) {
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return NS_ERROR_FAILURE;
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}
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// Instead of reaching in and manually reading each member, we'll just
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// copy the bits over.
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const char* devModeData = reinterpret_cast<const char*>(devMode.get());
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nsTArray<uint8_t> arrayBuf;
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arrayBuf.AppendElements(devModeData, devModeTotalSize);
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data->devModeData() = std::move(arrayBuf);
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsPrintSettingsServiceWin::DeserializeToPrintSettings(
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const PrintData& data, nsIPrintSettings* settings) {
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nsresult rv =
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nsPrintSettingsService::DeserializeToPrintSettings(data, settings);
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIPrintSettingsWin> psWin = do_QueryInterface(settings);
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if (!settings) {
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return NS_ERROR_FAILURE;
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}
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if (XRE_IsContentProcess()) {
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psWin->SetDeviceName(data.deviceName());
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psWin->SetDriverName(data.driverName());
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if (data.devModeData().IsEmpty()) {
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psWin->SetDevMode(nullptr);
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} else {
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// Check minimum length of DEVMODE data.
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auto devModeDataLength = data.devModeData().Length();
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if (devModeDataLength < sizeof(DEVMODEW)) {
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NS_WARNING("DEVMODE data is too short.");
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return NS_ERROR_FAILURE;
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}
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DEVMODEW* devMode = reinterpret_cast<DEVMODEW*>(
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const_cast<uint8_t*>(data.devModeData().Elements()));
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// Check actual length of DEVMODE data.
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if ((devMode->dmSize + devMode->dmDriverExtra) != devModeDataLength) {
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NS_WARNING("DEVMODE length is incorrect.");
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return NS_ERROR_FAILURE;
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}
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psWin->SetDevMode(devMode); // Copies
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}
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}
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return NS_OK;
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}
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nsresult nsPrintSettingsServiceWin::_CreatePrintSettings(
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nsIPrintSettings** _retval) {
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*_retval = nullptr;
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nsPrintSettingsWin* printSettings =
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new nsPrintSettingsWin(); // does not initially ref count
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NS_ENSURE_TRUE(printSettings, NS_ERROR_OUT_OF_MEMORY);
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NS_ADDREF(*_retval = printSettings); // ref count
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return NS_OK;
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}
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