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comparison: dom/system/gonk/Volume.h
dom/system/gonk/Volume.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:f7de8701e53e |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #ifndef mozilla_system_volume_h__ | |
| 6 #define mozilla_system_volume_h__ | |
| 7 | |
| 8 #include "VolumeCommand.h" | |
| 9 #include "nsIVolume.h" | |
| 10 #include "nsString.h" | |
| 11 #include "mozilla/Observer.h" | |
| 12 #include "nsISupportsImpl.h" | |
| 13 #include "nsWhitespaceTokenizer.h" | |
| 14 | |
| 15 namespace mozilla { | |
| 16 namespace system { | |
| 17 | |
| 18 /*************************************************************************** | |
| 19 * | |
| 20 * There is an instance of the Volume class for each volume reported | |
| 21 * from vold. | |
| 22 * | |
| 23 * Each volume originates from the /system/etv/vold.fstab file. | |
| 24 * | |
| 25 ***************************************************************************/ | |
| 26 | |
| 27 class Volume MOZ_FINAL | |
| 28 { | |
| 29 public: | |
| 30 NS_INLINE_DECL_REFCOUNTING(Volume) | |
| 31 | |
| 32 Volume(const nsCSubstring& aVolumeName); | |
| 33 | |
| 34 typedef long STATE; // States are now defined in nsIVolume.idl | |
| 35 | |
| 36 static const char* StateStr(STATE aState) { return NS_VolumeStateStr(aState); } | |
| 37 const char* StateStr() const { return StateStr(mState); } | |
| 38 STATE State() const { return mState; } | |
| 39 | |
| 40 const nsCString& Name() const { return mName; } | |
| 41 const char* NameStr() const { return mName.get(); } | |
| 42 | |
| 43 // The mount point is the name of the directory where the volume is mounted. | |
| 44 // (i.e. path that leads to the files stored on the volume). | |
| 45 const nsCString& MountPoint() const { return mMountPoint; } | |
| 46 | |
| 47 int32_t MountGeneration() const { return mMountGeneration; } | |
| 48 bool IsMountLocked() const { return mMountLocked; } | |
| 49 bool MediaPresent() const { return mMediaPresent; } | |
| 50 bool CanBeShared() const { return mCanBeShared; } | |
| 51 bool CanBeFormatted() const { return CanBeShared(); } | |
| 52 bool CanBeMounted() const { return CanBeShared(); } | |
| 53 bool IsSharingEnabled() const { return mCanBeShared && mSharingEnabled; } | |
| 54 bool IsFormatRequested() const { return CanBeFormatted() && mFormatRequested; } | |
| 55 bool IsMountRequested() const { return CanBeMounted() && mMountRequested; } | |
| 56 bool IsUnmountRequested() const { return CanBeMounted() && mUnmountRequested; } | |
| 57 bool IsSharing() const { return mIsSharing; } | |
| 58 bool IsFormatting() const { return mIsFormatting; } | |
| 59 | |
| 60 void SetSharingEnabled(bool aSharingEnabled); | |
| 61 void SetFormatRequested(bool aFormatRequested); | |
| 62 void SetMountRequested(bool aMountRequested); | |
| 63 void SetUnmountRequested(bool aUnmountRequested); | |
| 64 | |
| 65 typedef mozilla::Observer<Volume *> EventObserver; | |
| 66 typedef mozilla::ObserverList<Volume *> EventObserverList; | |
| 67 | |
| 68 // NOTE: that observers must live in the IOThread. | |
| 69 static void RegisterObserver(EventObserver* aObserver); | |
| 70 static void UnregisterObserver(EventObserver* aObserver); | |
| 71 | |
| 72 private: | |
| 73 friend class AutoMounter; // Calls StartXxx | |
| 74 friend class nsVolume; // Calls UpdateMountLock | |
| 75 friend class VolumeManager; // Calls HandleVoldResponse | |
| 76 friend class VolumeListCallback; // Calls SetMountPoint, SetState | |
| 77 | |
| 78 // The StartXxx functions will queue up a command to the VolumeManager. | |
| 79 // You can queue up as many commands as you like, and aCallback will | |
| 80 // be called as each one completes. | |
| 81 void StartMount(VolumeResponseCallback* aCallback); | |
| 82 void StartUnmount(VolumeResponseCallback* aCallback); | |
| 83 void StartFormat(VolumeResponseCallback* aCallback); | |
| 84 void StartShare(VolumeResponseCallback* aCallback); | |
| 85 void StartUnshare(VolumeResponseCallback* aCallback); | |
| 86 | |
| 87 void SetIsSharing(bool aIsSharing); | |
| 88 void SetIsFormatting(bool aIsFormatting); | |
| 89 void SetState(STATE aNewState); | |
| 90 void SetMediaPresent(bool aMediaPresent); | |
| 91 void SetMountPoint(const nsCSubstring& aMountPoint); | |
| 92 void StartCommand(VolumeCommand* aCommand); | |
| 93 | |
| 94 void HandleVoldResponse(int aResponseCode, nsCWhitespaceTokenizer& aTokenizer); | |
| 95 | |
| 96 static void UpdateMountLock(const nsACString& aVolumeName, | |
| 97 const int32_t& aMountGeneration, | |
| 98 const bool& aMountLocked); | |
| 99 | |
| 100 bool mMediaPresent; | |
| 101 STATE mState; | |
| 102 const nsCString mName; | |
| 103 nsCString mMountPoint; | |
| 104 int32_t mMountGeneration; | |
| 105 bool mMountLocked; | |
| 106 bool mSharingEnabled; | |
| 107 bool mFormatRequested; | |
| 108 bool mMountRequested; | |
| 109 bool mUnmountRequested; | |
| 110 bool mCanBeShared; | |
| 111 bool mIsSharing; | |
| 112 bool mIsFormatting; | |
| 113 | |
| 114 static EventObserverList mEventObserverList; | |
| 115 }; | |
| 116 | |
| 117 } // system | |
| 118 } // mozilla | |
| 119 | |
| 120 #endif // mozilla_system_volumemanager_h__ |
