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_HID_HID_DEVICE_MANAGER_H_ 6 #define EXTENSIONS_BROWSER_API_HID_HID_DEVICE_MANAGER_H_ 7 8 #include <stdint.h> 9 10 #include <map> 11 12 #include "base/basictypes.h" 13 #include "base/memory/ref_counted.h" 14 #include "base/memory/scoped_ptr.h" 15 #include "base/threading/thread_checker.h" 16 #include "device/hid/hid_device_info.h" 17 #include "extensions/browser/browser_context_keyed_api_factory.h" 18 #include "extensions/common/api/hid.h" 19 20 namespace device { 21 class HidDeviceFilter; 22 } 23 24 namespace extensions { 25 26 class Extension; 27 28 class HidDeviceManager : public BrowserContextKeyedAPI { 29 public: 30 explicit HidDeviceManager(content::BrowserContext* context); 31 virtual ~HidDeviceManager(); 32 33 // BrowserContextKeyedAPI implementation. 34 static BrowserContextKeyedAPIFactory<HidDeviceManager>* GetFactoryInstance(); 35 36 // Convenience method to get the HidDeviceManager for a profile. Get(content::BrowserContext * context)37 static HidDeviceManager* Get(content::BrowserContext* context) { 38 return BrowserContextKeyedAPIFactory<HidDeviceManager>::Get(context); 39 } 40 41 scoped_ptr<base::ListValue> GetApiDevices( 42 const Extension* extension, 43 const std::vector<device::HidDeviceFilter>& filters); 44 45 bool GetDeviceInfo(int resource_id, device::HidDeviceInfo* device_info); 46 47 bool HasPermission(const Extension* extension, 48 const device::HidDeviceInfo& device_info); 49 50 private: 51 friend class BrowserContextKeyedAPIFactory<HidDeviceManager>; 52 service_name()53 static const char* service_name() { return "HidDeviceManager"; } 54 static bool IsCalledOnValidThread(); 55 56 void UpdateDevices(); 57 58 static const bool kServiceHasOwnInstanceInIncognito = true; 59 60 int next_resource_id_; 61 62 typedef std::map<int, device::HidDeviceId> ResourceIdToDeviceIdMap; 63 typedef std::map<device::HidDeviceId, int> DeviceIdToResourceIdMap; 64 65 ResourceIdToDeviceIdMap device_ids_; 66 DeviceIdToResourceIdMap resource_ids_; 67 68 DISALLOW_COPY_AND_ASSIGN(HidDeviceManager); 69 }; 70 71 } // namespace extensions 72 73 #endif // EXTENSIONS_BROWSER_API_HID_HID_DEVICE_MANAGER_H_ 74