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0ffd2e95b8
This changeset causes tranistory states when changing from mounted to shared, and back to mounted to be reported as shared instead of unavailable. We also don't send the same status twice in a row.
84 lines
3.2 KiB
Plaintext
84 lines
3.2 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(e476e7ea-5cde-4d5a-b00d-d60daad76398)]
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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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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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// 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 nsIDOMMozWakeLock
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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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nsIVolumeStat getStats();
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// Whether this is a fake volume.
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readonly attribute boolean isFake;
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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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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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