History log of /frameworks/base/services/java/com/android/server/print/PrintManagerService.java
Revision Date Author Comments (<<< Hide modified files) (Show modified files >>>)
3cb2be97a226ae605f7b983739e02f40c0403989 31-Oct-2013 Svetoslav Ganov <svetoslavganov@google.com> Wrong index while dumping the print sub-system's state.

The wrong method was used when getting the user states to dump
and as a result only the state for the current user was dumped
as we get an exception for the other users.

bug:11457875

Change-Id: I9a3bcac01f1f1cf4f6e72aefff7cff2e0c6bca94
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
5fe07aa7a81c840eaf52bf95d4d5bacd914a8106 16-Oct-2013 Svetoslav <svetoslavganov@google.com> Clear the caller identity when dumping print system state.

bug:11251806

Change-Id: I295db22f327bc81f911cf638295415689d54fe56
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
4a82b455f9832430207e3ecfddfad4b67b071407 13-Oct-2013 Svetoslav Ganov <svetoslavganov@google.com> Printing from secondary user not working.

The last refactoring of how the print dialog activity is started moved
the code that creates the pending intent from the spooler which is a
per user app to the system process but failed to create the intent
for the right user. Also the code in the print manager service that
puts a notification for a newly isntalled print service was not taking
into account the current user.

bug:11199393

Change-Id: I64ecf9dc1457ec4d58cc1a62e53735bb0793a003
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
7bfbbcb04bf4ba8f3069b2df136f708c9849bacf 10-Oct-2013 Svetoslav <svetoslavganov@google.com> Refactor how the print dialog activity is started.

1. Before the print job activity was started asyncronously with
respect to the print call on to the print manager. This was
creating a situation where the starting activity may finish
before the print dialog appears which may lead to an orphaned
print document adapter with no data to print (as the UI is
is gone), or strange behaviors where the print dialog starts
on as a separate task.

To address this the pending intent for starting the print
dialog is not started by the print spooler since we cannot
call into it synchronously as we have to start its process
and bind to the spooler service which leads to jankyness in
the client app. Now the pending intent is created by the
print manager service in the synchronous print call so
from an app's perspective calling print starts the activity.

The side effect of this design is that the print dialog
activity may start before the system is bound to the spooler
service. In such a case the print activity cannot start
poking the print spooler state as the system registers
callback to observe the spooler state. To address this
the print spooler activity disables the UI and also binds
to the spooler service which happenes immediately after it
is started. As soon as the print dialog binds to the
service it starts the UI.

2. Fixed an bug in the printer adapter of the print dialog that
was leading to a crash if the only item in the adater is the
all pritners option and it is selected.

3. Piping the package name that started the printing so we can
pass it to the storage UI as a hint to open the last location
the app used.

bug:11127269

Change-Id: Ia93820bdae0b0e7600a0930b1f10d9708bd86b68
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
d8dbc13b47bec3248a86a505a30af9d0474240dc 28-Sep-2013 Svetoslav <svetoslavganov@google.com> Ignore historical printer records for installed services

When loading historical records for previously used printers we
now ignore the ones whose target print service is not installed.

bug:10955652

Change-Id: Ib295e7d88ed3c308ef6d8a11bdc1792ebbb6d526
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
c6afd813ac2ddaa576fc7866479e933627622248 26-Sep-2013 Svetoslav Ganov <svetoslavganov@google.com> Merge "PackageManager#queryIntentServices breaks its contract." into klp-dev
cb247866acf10b039e02b600f8471b4a508f0ce8 26-Sep-2013 Svetoslav Ganov <svetoslavganov@google.com> PackageManager#queryIntentServices breaks its contract.

PackageManager#queryIntentServices javadoc contract states that this
method (and the like) never returns null, rather an empty list if
no result is found. However, there is a path in the PackageManagerService
that returns null, thus breaking the contract. Handling the null list
explicitly.

bug:10930560

Change-Id: I708c51b8b7075e529145c8b0bf159efd6b697532
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
704697b6197262678e930daa831a1916ddee4dcf 22-Sep-2013 Svetoslav Ganov <svetoslavganov@google.com> Adding hidden APIs for observing the print jobs state.

This is needed for implementing the print job settigns UI.

bug:10935736

Change-Id: I63b42cbf4ce6a259fa1af47fa368b148ca5621c1
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
d8f391b4e0e8d876ec7216d34f86a9b3e8bab7e5 21-Sep-2013 Svetoslav <svetoslavganov@google.com> Offer to enable a print service after it is installed.

The user has to explicitly enable a print service from the settings UI
before using it. Usually, users very rarely if at all interact with print
services, therefore all print service management task are performed from
the print settings. We also have to get user consent warning that the
user's data is about to be given to a third-party app. We now post a
notification allowing the user to go directly to the settings screen to
turn the service on.

bug:10447510

Change-Id: Iea56c0825f0bf38328ad94912f0ea5576e9339b3
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
2fbd2a7f070f246ddafd9de94efa9a98861e9136 17-Sep-2013 Svetoslav <svetoslavganov@google.com> App UI freezes when printing. API clean up.

1. The UI of a printing app was freezing a little when calling the print
method since the print manager service was waiting for it to bind to the
print spooler which generated the print job id (and the initial print
job info really). Now the print manager service is responsible for job
id generation and does not not wait for the print spooler to spin. Hence,
the app UI is not blocked at all. Note that the print manager initiates
the binding to the spooler and as soon as it completes the spooler shows
the print UI which is hosted in its process. It is not possible to show
the print UI before the system is bound to the spooler since during this
binding the system passes a callback to the spooler so the latter can
talk to the system.

2. Changed the print job id to be an opaque class allowing us to vary the
way we generate print job ids in the future.

3. The queued print job state was hidden but the print job returned by the
print method of the print manager is in that state. Now now hidden.

4. We were incorrecly removing print job infos if they are completed or
cancelled. Doing that is problematic since the print job returned by
the print method allows the app to query for the job info after the
job has been say completed. Hence, an app can initiate printing and
get a print job whose state is "created" and hold onto it until after
the job is completed, now if the app asks for the print job info it
will get an info in "created" state even though the job is "completed"
since the spooler was not retaining the completed jobs. Now the spooler
removes the PDF files for the completed and cancelled print jobs but
keeps around the infos (also persisting them to disc) so it can answer
questions about them. On first boot or switch to a user we purge the
persisted print jobs in completed/cancelled state since they
are obsolete - no app can have a handle to them.

5. Removed the print method that takes a file since we have a public
PrintDocumentAdapter implementation for printing files. Once can
instantiate a PrintFileDocumentAdapter and pass it to the print
method. This class also allows overriding of the finish method to
know when the data is spooled and deleted the file if desired, etc.

6. Replaced the wrong code to slice a large list of parcelables to
use ParceledListSlice class.

bug:10748093

Change-Id: I1ebeeb47576e88fce550851cdd3e401fcede6e2b
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
860f8a6b663ca96d30d17da09eca8caf065aae62 14-Sep-2013 Svetoslav Ganov <svetoslavganov@google.com> Spooler should not crash if print service config activities are not exported.

1. If a print service does not export its activities for settings and
adding printers the print spooler ignores them instead of crashing.
Also if the service is not enabled its activities are now ignored.

2. Added a dedicated permission for a print service to optionally
protect its settings and add printer activities such that only the
system can bind to them.

3. Fixed a crash in the print dialog if its content is detached
from the window and animators are running.

bug:10680224

Change-Id: I20b57d6622a15f9b2352ba78d04c44e67b316a15
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
b669917825a49421ee79be4819ead765f5de8aae 08-Sep-2013 Svetoslav Ganov <svetoslavganov@google.com> Add dumping the state of the print sub-system.

Being able to dump the state of the print sub-system especially when
taking a bugreport is very useful for bug fixing and observing whether
the print system operates properly.

bug:10659019

Change-Id: Id098b788f474ab17766966a4563ffdfc0171c76b
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
d26d4898fcc9b78f4b66118895c375384098205e 28-Aug-2013 Svetoslav Ganov <svetoslavganov@google.com> Print spooler security and some new print service facing APIs.

1. Updated the security mode of the print spooler. Now the spooler
is not signed with the system key, it is not a privileged app so if
it gets compromised (PDF rendering is a potential attack vector)
it cannot access dangerous permissions. Also only the system
can bind to the spooler.

2. Added APIs for asking a print service to start and stop tracking
a given printer. This is need for the case when the user selects
the printer and the print service should do a best effort to keep
the system updated for the current state of the printer.

3. Added APIs for putting a print job in a blocked state. A print
service would report the print job as blocked if for some reason
the printer cannot proceed, e.g. 99 pages are printed but there
is no paper for the last one. The user has to add more paper
and the print service can resume the job.

4. Changed the read/write APIs to use ParcelFileDescriptor instead
of FileDescriptor since the latter does not have a clean API for
detaching the wrapped Linux file descriptor when one wants to
push it to native.

5. Added API for getting the size of the printed document so the
print service can avoid handling big filed over cellular network
or ask the user if needed.

6. Now the print services that are preinstalled on the system image
are automatically enabled.

Change-Id: Ia06c311d3d21cabb9e1368f13928e11cd0030918
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
44720af55a8fdf991929983dad5d53c02851dd1e 21-Aug-2013 Svetoslav Ganov <svetoslavganov@google.com> Print UI bug fixing and printer discovery refactoring.

1. Added support for selecting a printer from the all printers activity
that is not in the initial printer selection drop down. The user
initially sees a sub set of the printers in the drop down and the
last option is to see all printers in a separate activity. Some
of the printers in the all printers activity are not shown in the
initial drop down.

2. Refactored printer discovery by adding (private for now) printer
discovery app facing APIs. These APIs are needed to support multiple
printer selection activities (print dialog and all printers activities)
and also the settings for showing all printers for a service.

Now multiple apps can request observing for printers and there is
a centralized mediator that ensures the same printer discovery
session is used. The mediator dispatches printer discovery specific
requests to print services. It also aggregates discovered printers
and delivers them to the interested apps. The mediator minimizes
printer discovery session creation and starting and stopping discovery
by sharing the same discovery session and discovery window with
multiple apps. Lastly, the mediator takes care of print services
enabled during discovery by bringing them up to the current
discovery state (create discovery session and start discovery if
needed). The mediator also reports disappearing of the printers
of a service removed during discovery and notifies a newly
registered observers for the currnet printers if the observers are
added during an active printer discovery session.

3. Fixed bugs in the print UI and implemented some UX tweaks.

Change-Id: I4d0b0c5a6c6f1809b2ba5dbc8e9d63ab3d48f1ef
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
835835ee6f913408ac91678d6056896a2c5b25e3 05-Aug-2013 Svetoslav Ganov <svetoslavganov@google.com> Polish the print spooler loading of stored print jobs.

1. The singleton print spooler isntance is created when the print spooler
service gets a connection to the system and is destroyed when this
connection is removed. Note that if the spooler has work, then the
connection to the system will not be removed.

When the spooler is created, it reads the stored state and notifies the
system which in turn dispatches this to the print services.

When the system connects to the spooler and passes it a connection, we
schedule a delayed check whether there is work for the spooler. We do
not handle this immediately to avoid intermitted spinning on and off
of the spooler process if a client makes a sequence of queries while
the spooler has really no work.

2. Fixed a bug in the NotificationManagerService where adding a notification
and removing it immediately after that does not remove the notification.
The code that is adding a notification is run on a handler thread while
the code to remove it on the calling thread. This creates a race and
erroneous results. Now the removal is also scheduled on the handler.

3. Many small fixes here and there.

Change-Id: I6415c253139fa6616393fbe23c659d031a29e1f6
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
8c43376ea83a67414bd6823a472b76d41160239e 02-Aug-2013 Svetoslav Ganov <svetoslavganov@google.com> First cut of the print notifications.

1. Added notifications for a queued print job, for a started print job,
for ongoing canceling a print job, and for a failed print job. The
notifications for queued and started state have a cancel action. The
notification for failed print job has a cancel and a restart action.

2. Propagating failure message from the print service to the notifications.

3. PrintJobConfigActivity was not setting the initial value for the
print job copies and was not updating the UI immediately after creation.

4. Refactored PrintJobConfigActivity to avoid using the hack to avoid
reaction for item selection change in a spinner for an event that
happened before the callback was registered.

5. Removed the label attribute from PrinterInfo and now PrinterId is
composed of the printer name and the service component name. This
is nice since for restarting print jobs we do not need to store
information about the printer except the printer id which is
already part of the PrintJobInfo's data. Also the printer name
is not expected to change anyway.

6. Allowing cancellation of a queued print job. Also no print job is
cancelled without asking the managing print service to do that.
Before we were immediately canceling print jobs in queued state
but it was possible for a buggy print service to not set the
print job state to started before starting to do expensive work
that will not be canceled.

7. PrintServiceInfo was throwing an exception the the meta-data
XML for the print service was not well-formed which would crash
the system process. Now we just ignore not well-formed meta-data.

8. Removed unused permissions from the PrintSpooler's manifest.

Change-Id: Iba2dd14b487f56e137b90d1da17c3033422ab5e6
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
a00271533f639c8ed36429c663889ac9f654bc72 25-Jun-2013 Svetoslav Ganov <svetoslavganov@google.com> Refactoring of the print sub-system and API clean up.

1. Now a user state has ins own spooler since the spooler app is
running per user. The user state registers an observer for the state
of the spooler to get information needed to orchestrate unbinding
from print serivces that have no work and eventually unbinding from
the spooler when all no service has any work.

2. Abstracted a remote print service from the perspective of the system
in a class that is transparently managing binding and unbinding to
the remote instance.

3. Abstracted the remote print spooler to transparently manage binding
and unbinding to the remote instance when there is work and when
there is no work, respectively.

4. Cleaned up the print document adapter (ex-PrintAdapter) APIs to
enable implementing the all callbacks on a thread of choice. If
the document is really small, using the main thread makes sense.

Now if an app that does not need the UI state to layout the printed
content, it can schedule all the work for allocating resources, laying
out, writing, and releasing resources on a dedicated thread.

5. Added info class for the printed document that is now propagated
the the print services. A print service gets an instance of a
new document class that encapsulates the document info and a method
to access the document's data.

6. Added APIs for describing the type of a document to the new document
info class. This allows a print service to do smarts based on the
doc type. For now we have only photo and document types.

7. Renamed the systemReady method for system services that implement
it with different semantics to systemRunning. Such methods assume
the the service can run third-party code which is not the same as
systemReady.

8. Cleaned up the print job configuration activity.

9. Sigh... code clean up here and there. Factoring out classes to
improve readability.

Change-Id: I637ba28412793166cbf519273fdf022241159a92
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java
4b9a4d16872bbb50712e007b419ac0b35ff1582d 12-Jun-2013 Svetoslav Ganov <svetoslavganov@google.com> Print - platform APIs

Related changes:
Skia (inlcude PDF APIs): https://googleplex-android-review.googlesource.com/#/c/305814/
Canvas to PDF: https://googleplex-android-review.googlesource.com/#/c/319367/
Settings (initial version): https://googleplex-android-review.googlesource.com/#/c/306077/
Build: https://googleplex-android-review.googlesource.com/#/c/292437/
Sample print services: https://googleplex-android-review.googlesource.com/#/c/281785/

Change-Id: I104d12efd12577f05c7b9b2a5e5e49125c0f09da
/frameworks/base/services/java/com/android/server/print/PrintManagerService.java