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-rw-r--r--widget/windows/nsPrintSettingsServiceWin.cpp127
1 files changed, 127 insertions, 0 deletions
diff --git a/widget/windows/nsPrintSettingsServiceWin.cpp b/widget/windows/nsPrintSettingsServiceWin.cpp
new file mode 100644
index 0000000000..ab0f95abba
--- /dev/null
+++ b/widget/windows/nsPrintSettingsServiceWin.cpp
@@ -0,0 +1,127 @@
+/* -*- 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 "nsPrintSettingsServiceWin.h"
+
+#include "nsCOMPtr.h"
+#include "nsPrintSettingsWin.h"
+#include "nsPrintDialogUtil.h"
+
+#include "nsGfxCIID.h"
+#include "nsIServiceManager.h"
+#include "nsWindowsHelpers.h"
+#include "ipc/IPCMessageUtils.h"
+
+const char kPrinterListContractID[] = "@mozilla.org/gfx/printerlist;1";
+
+using namespace mozilla::embedding;
+
+NS_IMETHODIMP
+nsPrintSettingsServiceWin::SerializeToPrintData(nsIPrintSettings* aSettings,
+ PrintData* data) {
+ nsresult rv = nsPrintSettingsService::SerializeToPrintData(aSettings, data);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsCOMPtr<nsIPrintSettingsWin> psWin = do_QueryInterface(aSettings);
+ if (!psWin) {
+ return NS_ERROR_FAILURE;
+ }
+
+ nsAutoString deviceName;
+ nsAutoString driverName;
+
+ psWin->GetDeviceName(deviceName);
+ psWin->GetDriverName(driverName);
+
+ data->deviceName().Assign(deviceName);
+ data->driverName().Assign(driverName);
+
+ // When creating the print dialog on Windows, we only need to send certain
+ // print settings information from the parent to the child not vice versa.
+ if (XRE_IsParentProcess()) {
+ // A DEVMODE can actually be of arbitrary size. If it turns out that it'll
+ // make our IPC message larger than the limit, then we'll error out.
+ LPDEVMODEW devModeRaw;
+ psWin->GetDevMode(&devModeRaw); // This actually allocates a copy of the
+ // the nsIPrintSettingsWin DEVMODE, so
+ // we're now responsible for deallocating
+ // it. We'll use an nsAutoDevMode helper
+ // to do this.
+ if (devModeRaw) {
+ nsAutoDevMode devMode(devModeRaw);
+ devModeRaw = nullptr;
+
+ size_t devModeTotalSize = devMode->dmSize + devMode->dmDriverExtra;
+ size_t msgTotalSize = sizeof(PrintData) + devModeTotalSize;
+
+ if (msgTotalSize > IPC::Channel::kMaximumMessageSize / 2) {
+ return NS_ERROR_FAILURE;
+ }
+
+ // Instead of reaching in and manually reading each member, we'll just
+ // copy the bits over.
+ const char* devModeData = reinterpret_cast<const char*>(devMode.get());
+ nsTArray<uint8_t> arrayBuf;
+ arrayBuf.AppendElements(devModeData, devModeTotalSize);
+ data->devModeData() = std::move(arrayBuf);
+ }
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPrintSettingsServiceWin::DeserializeToPrintSettings(
+ const PrintData& data, nsIPrintSettings* settings) {
+ nsresult rv =
+ nsPrintSettingsService::DeserializeToPrintSettings(data, settings);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsCOMPtr<nsIPrintSettingsWin> psWin = do_QueryInterface(settings);
+ if (!settings) {
+ return NS_ERROR_FAILURE;
+ }
+
+ if (XRE_IsContentProcess()) {
+ psWin->SetDeviceName(data.deviceName());
+ psWin->SetDriverName(data.driverName());
+
+ if (data.devModeData().IsEmpty()) {
+ psWin->SetDevMode(nullptr);
+ } else {
+ // Check minimum length of DEVMODE data.
+ auto devModeDataLength = data.devModeData().Length();
+ if (devModeDataLength < sizeof(DEVMODEW)) {
+ NS_WARNING("DEVMODE data is too short.");
+ return NS_ERROR_FAILURE;
+ }
+
+ DEVMODEW* devMode = reinterpret_cast<DEVMODEW*>(
+ const_cast<uint8_t*>(data.devModeData().Elements()));
+
+ // Check actual length of DEVMODE data.
+ if ((devMode->dmSize + devMode->dmDriverExtra) != devModeDataLength) {
+ NS_WARNING("DEVMODE length is incorrect.");
+ return NS_ERROR_FAILURE;
+ }
+
+ psWin->SetDevMode(devMode); // Copies
+ }
+ }
+
+ return NS_OK;
+}
+
+nsresult nsPrintSettingsServiceWin::_CreatePrintSettings(
+ nsIPrintSettings** _retval) {
+ *_retval = nullptr;
+ nsPrintSettingsWin* printSettings =
+ new nsPrintSettingsWin(); // does not initially ref count
+ NS_ENSURE_TRUE(printSettings, NS_ERROR_OUT_OF_MEMORY);
+
+ NS_ADDREF(*_retval = printSettings); // ref count
+
+ return NS_OK;
+}