extensions/browser/api/webcam_private/webcam.h

   1 // Copyright 2015 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_WEBCAM_PRIVATE_WEBCAM_H_
   6 #define EXTENSIONS_BROWSER_API_WEBCAM_PRIVATE_WEBCAM_H_
   7
   8 #include <set>
   9 #include <string>
  10
  11 #include "base/macros.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "content/public/browser/browser_thread.h"
  14 #include "extensions/browser/api/api_resource.h"
  15
  16 namespace extensions {
  17
  18 class Webcam : public base::RefCounted<Webcam> {
  19  public:
  20   enum PanDirection {
  21     PAN_LEFT,
  22     PAN_RIGHT,
  23     PAN_STOP,
  24   };
  25
  26   enum TiltDirection {
  27     TILT_UP,
  28     TILT_DOWN,
  29     TILT_STOP,
  30   };
  31
  32   Webcam();
  33
  34   using GetPTZCompleteCallback = base::Callback<void(bool, int)>;
  35   using SetPTZCompleteCallback = base::Callback<void(bool)>;
  36
  37   virtual void GetPan(const GetPTZCompleteCallback& callback) = 0;
  38   virtual void GetTilt(const GetPTZCompleteCallback& callback) = 0;
  39   virtual void GetZoom(const GetPTZCompleteCallback& callback) = 0;
  40   virtual void SetPan(int value,
  41                       int pan_speed,
  42                       const SetPTZCompleteCallback& callback) = 0;
  43   virtual void SetTilt(int value,
  44                        int tilt_speed,
  45                        const SetPTZCompleteCallback& callback) = 0;
  46   virtual void SetZoom(int value, const SetPTZCompleteCallback& callback) = 0;
  47   virtual void SetPanDirection(PanDirection direction,
  48                                int pan_speed,
  49                                const SetPTZCompleteCallback& callback) = 0;
  50   virtual void SetTiltDirection(TiltDirection direction,
  51                                 int tilt_speed,
  52                                 const SetPTZCompleteCallback& callback) = 0;
  53   virtual void Reset(bool pan,
  54                      bool tilt,
  55                      bool zoom,
  56                      const SetPTZCompleteCallback& callback) = 0;
  57
  58  protected:
  59   friend class base::RefCounted<Webcam>;
  60   virtual ~Webcam();
  61
  62  private:
  63   DISALLOW_COPY_AND_ASSIGN(Webcam);
  64 };
  65
  66 class WebcamResource : public ApiResource {
  67  public:
  68   WebcamResource(const std::string& owner_extension_id,
  69                  Webcam* webcam,
  70                  const std::string& webcam_id);
  71   ~WebcamResource() override;
  72
  73   static const content::BrowserThread::ID kThreadId =
  74       content::BrowserThread::UI;
  75
  76   Webcam* GetWebcam() const;
  77   const std::string GetWebcamId() const;
  78
  79   // ApiResource overrides.
  80   bool IsPersistent() const override;
  81
  82  private:
  83   scoped_refptr<Webcam> webcam_;
  84   std::string webcam_id_;
  85
  86   DISALLOW_COPY_AND_ASSIGN(WebcamResource);
  87 };
  88
  89 }  // namespace extensions
  90
  91 #endif  // EXTENSIONS_BROWSER_API_WEBCAM_PRIVATE_WEBCAM_H_