Added PrinterDriverInfo and PrintBackend::GetPrinterDriverInfo for windows.

BUG=108194
TEST=none


Review URL: http://codereview.chromium.org/9516010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@125020 0039d316-1c4b-4281-b951-d872f2087c98

printing/backend/print_backend.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -16,6 +16,10 @@ PrinterCapsAndDefaults::PrinterCapsAndDefaults() {}
 
 PrinterCapsAndDefaults::~PrinterCapsAndDefaults() {}
 
+PrinterDriverInfo::PrinterDriverInfo() {}
+
+PrinterDriverInfo::~PrinterDriverInfo() {}
+
 PrintBackend::~PrintBackend() {}
 
 }  // namespace printing

printing/backend/print_backend.h

@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -43,6 +43,16 @@ struct PRINTING_EXPORT PrinterCapsAndDefaults {
   std::string defaults_mime_type;
 };
 
+struct PRINTING_EXPORT PrinterDriverInfo {
+  PrinterDriverInfo();
+  ~PrinterDriverInfo();
+
+  std::string driver_name;
+  std::string driver_version;
+  std::string product_name;
+  std::string product_version;
+};
+
 // PrintBackend class will provide interface for different print backends
 // (Windows, CUPS) to implement. User will call CreateInstance() to
 // obtain available print backend.
@@ -66,6 +76,11 @@ class PRINTING_EXPORT PrintBackend
       const std::string& printer_name,
       PrinterCapsAndDefaults* printer_info) = 0;
 
+  // Gets the information about driver for a specific printer.
+  virtual bool GetPrinterDriverInfo(
+      const std::string& printer_name,
+      PrinterDriverInfo* driver_info) = 0;
+
   // Returns true if printer_name points to a valid printer.
   virtual bool IsValidPrinter(const std::string& printer_name) = 0;
 

printing/backend/print_backend_chromeos.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -22,6 +22,9 @@ class PrintBackendChromeOS : public PrintBackend {
   virtual bool GetPrinterCapsAndDefaults(const std::string& printer_name,
                                          PrinterCapsAndDefaults* printer_info);
 
+  virtual bool GetPrinterDriverInfo(const std::string& printer_name,
+                                    PrinterDriverInfo* driver_info);
+
   virtual bool IsValidPrinter(const std::string& printer_name);
 
  private:
@@ -42,6 +45,13 @@ bool PrintBackendChromeOS::GetPrinterCapsAndDefaults(
   return false;
 }
 
+bool PrintBackendChromeOS::GetPrinterDriverInfo(
+    const std::string& printer_name,
+    PrinterDriverInfo* driver_info) {
+  NOTREACHED();
+  return false;
+}
+
 std::string PrintBackendChromeOS::GetDefaultPrinterName() {
   return std::string();
 }

printing/backend/print_backend_cups.cc

@@ -113,6 +113,9 @@ class PrintBackendCUPS : public PrintBackend {
       const std::string& printer_name,
       PrinterCapsAndDefaults* printer_info) OVERRIDE;
 
+  virtual bool GetPrinterDriverInfo(const std::string& printer_name,
+                                    PrinterDriverInfo* driver_info) OVERRIDE;
+
   virtual bool IsValidPrinter(const std::string& printer_name) OVERRIDE;
 
  private:
@@ -225,6 +228,12 @@ bool PrintBackendCUPS::GetPrinterCapsAndDefaults(
   return res;
 }
 
+bool PrintBackendCUPS::GetPrinterDriverInfo(const std::string& printer_name,
+                                            PrinterDriverInfo* driver_info) {
+  // TODO(vitalybuka): MAC implementation. http://crbug.com/108194
+  return false;
+}
+
 bool PrintBackendCUPS::IsValidPrinter(const std::string& printer_name) {
   // This is not very efficient way to get specific printer info. CUPS 1.4
   // supports cupsGetNamedDest() function. However, CUPS 1.4 is not available

printing/backend/print_backend_win.cc

@@ -7,6 +7,8 @@
 #include <objidl.h>
 #include <winspool.h>
 
+#include "base/file_path.h"
+#include "base/file_version_info.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string_piece.h"
 #include "base/utf_string_conversions.h"
@@ -47,6 +49,9 @@ class PrintBackendWin : public PrintBackend {
   virtual bool GetPrinterCapsAndDefaults(const std::string& printer_name,
                                          PrinterCapsAndDefaults* printer_info);
 
+  virtual bool GetPrinterDriverInfo(const std::string& printer_name,
+                                    PrinterDriverInfo* driver_info);
+
   virtual bool IsValidPrinter(const std::string& printer_name);
 };
 
@@ -171,10 +176,48 @@ bool PrintBackendWin::GetPrinterCapsAndDefaults(
   return true;
 }
 
-bool PrintBackendWin::IsValidPrinter(const std::string& printer_name) {
-  std::wstring printer_name_wide = UTF8ToWide(printer_name);
+// Gets the information about driver for a specific printer.
+bool PrintBackendWin::GetPrinterDriverInfo(const std::string& printer_name,
+                                           PrinterDriverInfo* driver_info) {
+  DCHECK(driver_info);
   ScopedPrinterHandle printer_handle;
-  OpenPrinter(const_cast<LPTSTR>(printer_name_wide.c_str()),
+  if (!::OpenPrinter(const_cast<LPTSTR>(UTF8ToWide(printer_name).c_str()),
+                     printer_handle.Receive(), NULL)) {
+    return false;
+  }
+  DCHECK(printer_handle.IsValid());
+  DWORD bytes_needed = 0;
+  ::GetPrinterDriver(printer_handle, NULL, 6, NULL, 0, &bytes_needed);
+  scoped_array<BYTE> driver_info_buffer(new BYTE[bytes_needed]);
+  if (!bytes_needed || !driver_info_buffer.get())
+    return false;
+  if (!::GetPrinterDriver(printer_handle, NULL, 6, driver_info_buffer.get(),
+                          bytes_needed, &bytes_needed)) {
+    return false;
+  }
+  if (!bytes_needed)
+    return false;
+  const DRIVER_INFO_6* driver_info_6 =
+      reinterpret_cast<DRIVER_INFO_6*>(driver_info_buffer.get());
+
+  if (driver_info_6->pName)
+    driver_info->driver_name = WideToUTF8(driver_info_6->pName);
+
+  if (driver_info_6->pDriverPath) {
+    scoped_ptr<FileVersionInfo> version_info(
+        FileVersionInfo::CreateFileVersionInfo(
+            FilePath(driver_info_6->pDriverPath)));
+    driver_info->driver_version = WideToUTF8(version_info->file_version());
+    driver_info->product_name = WideToUTF8(version_info->product_name());
+    driver_info->product_version = WideToUTF8(version_info->product_version());
+  }
+
+  return true;
+}
+
+bool PrintBackendWin::IsValidPrinter(const std::string& printer_name) {
+  ScopedPrinterHandle printer_handle;
+  OpenPrinter(const_cast<LPTSTR>(UTF8ToWide(printer_name).c_str()),
               printer_handle.Receive(), NULL);
   return printer_handle.IsValid();
 }