extensions/browser/api/document_scan/document_scan_interface.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef EXTENSIONS_BROWSER_API_DOCUMENT_SCAN_DOCUMENT_SCAN_INTERFACE_H_
   6 #define EXTENSIONS_BROWSER_API_DOCUMENT_SCAN_DOCUMENT_SCAN_INTERFACE_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/callback.h"
  12 #include "base/memory/scoped_ptr.h"
  13
  14 namespace extensions {
  15
  16 namespace api {
  17
  18 class DocumentScanInterface {
  19  public:
  20   struct ScannerDescription {
  21     ScannerDescription();
  22     ~ScannerDescription();
  23     std::string name;
  24     std::string manufacturer;
  25     std::string model;
  26     std::string scanner_type;
  27     std::string image_mime_type;
  28   };
  29
  30   enum ScanMode { kScanModeColor, kScanModeGray, kScanModeLineart };
  31
  32   typedef base::Callback<void(
  33       const std::vector<ScannerDescription>& scanner_descriptions,
  34       const std::string& error)> ListScannersResultsCallback;
  35
  36   typedef base::Callback<void(const std::string& scanned_image,
  37                               const std::string& mime_type,
  38                               const std::string& error)> ScanResultsCallback;
  39
  40   virtual ~DocumentScanInterface();
  41
  42   virtual void Scan(const std::string& scanner_name,
  43                     ScanMode mode,
  44                     int resolution_dpi,
  45                     const ScanResultsCallback& callback) = 0;
  46   virtual void ListScanners(const ListScannersResultsCallback& callback) = 0;
  47
  48   // Creates a platform-specific DocumentScanInterface instance.
  49   static DocumentScanInterface* CreateInstance();
  50
  51  protected:
  52   DocumentScanInterface();
  53 };
  54
  55 }  // namespace api
  56
  57 }  // namespace extensions
  58
  59 #endif  // EXTENSIONS_BROWSER_API_DOCUMENT_SCAN_DOCUMENT_SCAN_INTERFACE_H_