зеркало из https://github.com/mozilla/gecko-dev.git
115 строки
4.4 KiB
Plaintext
115 строки
4.4 KiB
Plaintext
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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#include "nsIVolumeStat.idl"
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[scriptable, uuid(EE752CB8-8FD7-11E4-A602-70221D5D46B0)]
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interface nsIVolume : nsISupports
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{
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// These MUST match the states from android's system/vold/Volume.h header
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// Note: Changes made to the STATE_xxx names should also be reflected in the
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// NS_VolumeStateStr function found in Volume.cpp
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const long STATE_INIT = -1;
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const long STATE_NOMEDIA = 0;
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const long STATE_IDLE = 1;
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const long STATE_PENDING = 2;
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const long STATE_CHECKING = 3;
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const long STATE_MOUNTED = 4;
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const long STATE_UNMOUNTING = 5;
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const long STATE_FORMATTING = 6;
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const long STATE_SHARED = 7;
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const long STATE_SHAREDMNT = 8;
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const long STATE_CHECKMNT = 100;
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const long STATE_MOUNT_FAIL = 101;
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// The name of the volume. Often there is only one volume, called sdcard.
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// But some phones support multiple volumes.
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readonly attribute DOMString name;
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// The mount point is the path on the system where the volume is mounted
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// and is only valid when state == STATE_MOUNTED.
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readonly attribute DOMString mountPoint;
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// Reflects the current state of the volume, using STATE_xxx constants
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// from above.
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readonly attribute long state;
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// mountGeneration is a unique number which is used distinguish between
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// periods of time that a volume is in the mounted state. Each time a
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// volume transitions to the mounted state, the mountGeneration will
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// be different from the last time it transitioned to the mounted state.
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readonly attribute long mountGeneration;
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// While a volume is mounted, it can be locked, preventing it from being
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// shared with the PC. To lock a volume, acquire an MozWakeLock
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// using the name of this attribute. Note that mountLockName changes
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// every time the mountGeneration changes, so you'll need to reacquire
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// the wakelock every time the volume becomes mounted.
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readonly attribute DOMString mountLockName;
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// Determines if a mountlock is currently being held against this volume.
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readonly attribute boolean isMountLocked;
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// Determines if media is actually present or not. Note, that when an sdcard
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// is ejected, it may go through several tranistory states before finally
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// arriving at STATE_NOMEDIA. So isMediaPresent may be false even when the
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// current state isn't STATE_NOMEDIA.
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readonly attribute boolean isMediaPresent;
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// Determines if the volume is currently being shared. This covers off
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// more than just state == STATE_SHARED. isSharing will return true from the
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// time that the volume leaves the mounted state, until it gets back to
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// mounted, nomedia, or formatting states. This attribute is to allow
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// device storage to suppress unwanted 'unavailable' status when
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// transitioning from mounted to sharing and back again.
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readonly attribute boolean isSharing;
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// Determines if the volume is currently formatting. This sets true once
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// mFormatRequest == true and mState == STATE_MOUNTED, and sets false
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// once the volume has been formatted and mounted again.
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readonly attribute boolean isFormatting;
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readonly attribute boolean isUnmounting;
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nsIVolumeStat getStats();
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// Formats the volume in IO thread, if the volume is ready to be formatted.
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// Automounter will unmount it, format it and then mount it again.
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void format();
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// Mounts the volume in IO thread, if the volume is already unmounted.
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// Automounter will mount it. Otherwise Automounter will skip this.
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void mount();
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// Unmounts the volume in IO thread, if the volume is already mounted.
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// Automounter will unmount it. Otherwise Automounter will skip this.
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void unmount();
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// Whether this is a fake volume.
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readonly attribute boolean isFake;
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// Whether this is a removable volume
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readonly attribute boolean isRemovable;
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// Whether this is a hot-swappable volume
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readonly attribute boolean isHotSwappable;
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};
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%{C++
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// For use with the ObserverService
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#define NS_VOLUME_STATE_CHANGED "volume-state-changed"
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#define NS_VOLUME_REMOVED "volume-removed"
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namespace mozilla {
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namespace system {
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// Convert a state into a loggable/printable string.
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const char* NS_VolumeStateStr(int32_t aState);
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} // system
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} // mozilla
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%}
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