| fce84f035c35606c5707e735f503f7bdcfd5b2a1 |
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01-Nov-2014 |
Svet Ganov <svetoslavganov@google.com> |
Crash apps that print malformed or password protected PDFs.
If apps are writing malformed content (typically not a PDF file) or if the
PDF content they provide to the print system is password protected, are now
crashed as both of these are app bugs.
bug:17636435
Change-Id: Ifce6a3199e587448dd38f6a84290a965c24b698b
/frameworks/base/core/java/android/print/IPrintDocumentAdapter.aidl
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| a798c0a984f29f7180883a61839f68d2cbf0c6ce |
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15-May-2014 |
Svetoslav <svetoslavganov@google.com> |
Refactor printing
Change-Id: I19850154ef2798afff511e4490a268ce38e8cbae
/frameworks/base/core/java/android/print/IPrintDocumentAdapter.aidl
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| d270cb9264f762257d1aadbeba9c4b38866e171c |
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31-Oct-2013 |
Svetoslav <svetoslavganov@google.com> |
Cancel current work in PrintDocumentAdatper if printing is cancelled.
Layout and write may take some time during which the user can
cancel printing. Currently we wait for the last operation,
being write or layout, to complete before closing the print
dialog. Now in such a scenario we request a cancellation of
the ongoing operation.
bug:11329523
Change-Id: Ia9d747163cc73509369a86c8b5afc83b7ee54859
/frameworks/base/core/java/android/print/IPrintDocumentAdapter.aidl
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| 858a1850e2e1c4516129d27ecdf54aaeade606ca |
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18-Oct-2013 |
Svetoslav Ganov <svetoslavganov@google.com> |
Hide the print dialog if the printing activity is destroyed.
1. For an app to print it creates a PrintDocumentAdapter implementation
which is passed to the print dialog activity. If the activity that
created the adapter is destroyed then the adapter, which may rely on
the activity state, may be in an invalid state. For example, an app
creates an adapter and calls print resuting in the app activity and
the print dialog activity being stacked. Now the user rotates the
device which triggers the recreating of the activity stack (assume the
app does not handle rotation). The recreated print dialog activity
receives the intent that originally created it with containing the
adapter that was constructed in the context of the old, now destroyed,
app activity instance.
To handle this we are limiting an app to be able to print only from
and activity and when this activity is destroyed we mark the adapter
as invalid which will result in hiding the print dialog activity. Note
that if the app process is killed we already handle this in the print
dialog activiy by registering a death recipient on the adapter binder.
2. In the PrintManager.PrintDocumentAdapterDelegate some of the state is
accessed only on the main thread and some from miltiple threads. The
code was trying to avoid locking for state that is not accessed by
multiple threads but this is error prone and the benefit does not
justify the complexity and added fragility. Now grabbing a lock all
the time.
3. The PrintJobConfigActivity waits for it to bind to the print spooler
service before instantiating its print controller and editor. However,
these can be accessed by invoking some of the activity cycle callbacks.
This change is adding null checks for the case where the activity
callbacks are called before the binding to the spooler is completed.
bug:11242661
Change-Id: Id906b3170e4f0a0553772dfa62686f06fdca0eaf
/frameworks/base/core/java/android/print/IPrintDocumentAdapter.aidl
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| 85b1f883056a1d74473fd9ce774948878f389ab6 |
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25-Jul-2013 |
Svetoslav Ganov <svetoslavganov@google.com> |
Iteration on the print sub-system.
1. API changes: Moved copies API from PrintAttributes to PrintJobInfo;
Changed the PageRange list to an array in PrintDocumentAdapter#onWrite;
Added onCancelled method to the layout and write callbacks.
2. Refactored the serialization of remote layout and write commands. Now
the commands are serialized by the code in the client instead in the spooler.
The benefit is simple code since the client has to do a serialization to delegate
to the main thread anyway. The increased IPC found is fine since these calls
are quite unfrequent.
3. Removed an unused file: IPrintSpoolerObserver.aidl
4. Added equals and hasCode implementation to PageRange, PrintAttributes,
MediaSize, Resolution, Margins, Tray, PrintDocumentInfo.
5. Added shortcut path for query APIs on PrintJob that return cached values
if the print job is in a uncuttable state, i.e. completed or cancelled. Failed
print jobs can be restarted.
6. PrintJobInfo was not properly serialized.
7. Updated the look of the print dialog to be stable if there is and there isn't
currently selected printer.
8. PrintJobCOnfigActivity now calls onLayout on every print attributes change
but requests a write only on print preview or print button press. Also if the
layout did not change the content and it is already written no subsequent
call is made. Also if the selected pages change and we already have them
no subsequent call to write is made. Also the app is called with print preview
attribute set when performing layout and with it cleared after the print button
is pressed. A lot of changes making sure that only valid actions are enabled
in the activity (looks like a dialog) at a given time frame. The print job config
activity is also hidden after we got all the data, i.e. layout and write are done.
9. The callback from the print spooler to the system are scheduled via messages
to avoid lock being held during the call. It was hard to guarantee that since a
method holding a lock may be calling one that would like to release the lock
at some point to make the callbacks.
10. Print spooler state is persisted only if something changes in a completed
print job, i.e. not one that is being constructed due the print job config dialog.
11. Fixed a potential race in the RemotePrintSpooler where it was possible that
a client that got a handle to the remote spooler calls into an unbound spooler.
E.g: the client gets the remote interface with a lock held, now the client releases
the lock to avoid IPC with a lock, during the IPC scheduling the spooler has
notified the system that it is done and the system unbinds from it, now the
client's IPC is made to a spooler that is disconnected.
Change-Id: Ie9c42255940a27ecaed21a4d326a663a4788ac9d
/frameworks/base/core/java/android/print/IPrintDocumentAdapter.aidl
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| 6283608e0bd40548742839f5a8b02f7e5c9c5c7c |
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17-Jul-2013 |
Svetoslav <svetoslavganov@google.com> |
Tweak the print APIs.
1. Adding bundle with metadata to PrintDocumentAdapter#onLayout
with one key for now to specify whether this is for a preview.
2. Cleaned up docs.
Change-Id: I89380781bf3ae41aa89f8a0347d74516a210394c
/frameworks/base/core/java/android/print/IPrintDocumentAdapter.aidl
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| a00271533f639c8ed36429c663889ac9f654bc72 |
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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/core/java/android/print/IPrintDocumentAdapter.aidl
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