Print Preview: Get printer info with capabilities.

printing/backend/print_backend.h

 // 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.
 
 #ifndef PRINTING_BACKEND_PRINT_BACKEND_H_
 #define PRINTING_BACKEND_PRINT_BACKEND_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "printing/print_job_constants.h"
 #include "printing/printing_export.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 // This is the interface for platform-specific code for a print backend
 namespace printing {
 
+// Note: There are raw values. The |printer_name| and |printer_description|
+// require further interpretation on Mac. See existing callers for examples.
 struct PRINTING_EXPORT PrinterBasicInfo {
   PrinterBasicInfo();
   PrinterBasicInfo(const PrinterBasicInfo& other);
   ~PrinterBasicInfo();
 
   std::string printer_name;
   std::string printer_description;
   int printer_status;
   int is_default;
   std::map<std::string, std::string> options;
 };
 
-typedef std::vector<PrinterBasicInfo> PrinterList;
+using PrinterList = std::vector<PrinterBasicInfo>;
 
 struct PRINTING_EXPORT PrinterSemanticCapsAndDefaults {
   PrinterSemanticCapsAndDefaults();
   PrinterSemanticCapsAndDefaults(const PrinterSemanticCapsAndDefaults& other);
   ~PrinterSemanticCapsAndDefaults();
 
   bool collate_capable;
   bool collate_default;
 
   bool copies_capable;
@@ skipping 35 matching lines @@
 // Please note, that PrintBackend is not platform specific, but rather
 // print system specific. For example, CUPS is available on both Linux and Mac,
 // but not available on ChromeOS, etc. This design allows us to add more
 // functionality on some platforms, while reusing core (CUPS) functions.
 class PRINTING_EXPORT PrintBackend
     : public base::RefCountedThreadSafe<PrintBackend> {
  public:
   // Enumerates the list of installed local and network printers.
   virtual bool EnumeratePrinters(PrinterList* printer_list) = 0;
 
-  // Get the default printer name. Empty string if no default printer.
+  // Gets the default printer name. Empty string if no default printer.
   virtual std::string GetDefaultPrinterName() = 0;
 
+  // Gets the basic printer info for a specific printer.
+  virtual bool GetPrinterBasicInfo(const std::string& printer_name,
+                                   PrinterBasicInfo* printer_info) = 0;
+
   // Gets the semantic capabilities and defaults for a specific printer.
   // This is usually a lighter implementation than GetPrinterCapsAndDefaults().
   // NOTE: on some old platforms (WinXP without XPS pack)
   // GetPrinterCapsAndDefaults() will fail, while this function will succeed.
   virtual bool GetPrinterSemanticCapsAndDefaults(
       const std::string& printer_name,
       PrinterSemanticCapsAndDefaults* printer_info) = 0;
 
   // Gets the capabilities and defaults for a specific printer.
   virtual bool GetPrinterCapsAndDefaults(
       const std::string& printer_name,
       PrinterCapsAndDefaults* printer_info) = 0;
 
   // Gets the information about driver for a specific printer.
   virtual std::string GetPrinterDriverInfo(
       const std::string& printer_name) = 0;
 
   // Returns true if printer_name points to a valid printer.
   virtual bool IsValidPrinter(const std::string& printer_name) = 0;
 
-  // Allocate a print backend. If |print_backend_settings| is NULL, default
+  // Allocates a print backend. If |print_backend_settings| is nullptr, default
   // settings will be used.
   static scoped_refptr<PrintBackend> CreateInstance(
       const base::DictionaryValue* print_backend_settings);
 
  protected:
   friend class base::RefCountedThreadSafe<PrintBackend>;
   virtual ~PrintBackend();
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_BACKEND_PRINT_BACKEND_H_