Adds new ExifInterface method to extract the thumbnail range from
a larger image file, and use that to return an AssetFileDescriptor.
When decoding an AssetFileDescriptor thumbnail with offsets, read out
the raw data entirely, since Skia uses lseek() aggressively.
Bug: 10412208
Change-Id: I7906cdf82c0c3794cec7043c801a86f66efeb143
Implement EXTRA_HAS_MORE and EXTRA_REQUEST_MORE contract with
document providers. Providers can include EXTRA_HAS_MORE when
additional data is available with additional cost, such as a network
request.
Listen to content changes based on returned cursor instead of
original Uri. Include a test backend to exercise. UX still under
development.
Bug: 10350207
Change-Id: Iaa8954df55a1a1c0aa96eb8a4fd288e12c2fbb01
When requesting thumbnails, check if their dimensions are larger
than requested, and downscale to avoid memory pressure. Load them
async and with LruCache.
Extend MatrixCursor so that RowBuilder can offer() columns without
requiring they know the projection map. This makes it easier to
respond to query() calls, where the remote side controls the
projection map. Use it to handle custom projections in external
storage backend.
Update date/time formatting to match spec.
Bug: 10333418, 10331689
Change-Id: I7e947a8e8068af8a39b55e6766b3241de4f3fc16
Create documents manage mode to support Downloads and transient
storage devices. Locks user into requested backend root, and forces
file sizes on and sorting by last modified.
Separate API constants for Documents versus Roots, and give concrete
MIME types for roots.
Treat null sizes as unknown. Documents are always enabled in list
so that divider is drawn. Mark external storage file as writable.
Bug: 10329983, 10332993, 10332952
Change-Id: I05f4fdf5b04041a38e1ba7fb30202a3b0c615bf6
Move to manual tracking of directory navigation stack so we have Uri
data to persist, instead of opaque fragment backstack. Remember
directory stacks across launches on a per-app basis.
Start recording recently opened and created files. Uniform Uri
parameter extraction utility methods in contract.
Change-Id: I79ed30ee10272bf7c53d339e797639c993f649bb
The same document may be present with different sematics under
multiple storage roots, so always reference using both ROOT_ID and
DOC_ID. This enables backends to revoke permissions for an entire
root, such as when an account is removed.
Start building provider to remember recently accessed documents.
Change-Id: I75befa2e61393dec12fcc7fd27f631fcddae46fa
Introduce XML metadata for storage backends, used to indicate if
custom roots should be queried, and provide any custom MIME type
icons inside that backend.
Parse metadata and resolve custom icons in UI.
Change-Id: Iec026c0b10845edff7a345d9389691ddf2c87a0e
Allow storage backends to publish multiple roots into the UI, which
are defined by a directory GUID, type, and label details. Update
external provider to surface a primary external storage root, and
switch to burning file path into the returned GUIDs so they remain
durable.
Added insert, update, and delete support to external provider. Adds
file extensions to display names when needed to match MIME type.
Add flags for searching and deletion, and extras for Cursor
pagination. Add directory creation dialog to UI. Opening a document
always gives write access.
Change-Id: I9bea1aa0dcde909a5ab86aefeece7451ab920cf1
"signatureOrSystem" permissions are no longer available to all apps
residing en the /system partition. Instead, there is a new /system/priv-app
directory, and only apps whose APKs are in that directory are allowed
to use signatureOrSystem permissions without sharing the platform cert.
This will reduce the surface area for possible exploits of system-
bundled applications to try to gain access to permission-guarded
operations.
The ApplicationInfo.FLAG_SYSTEM flag continues to mean what it is
says in the documentation: it indicates that the application apk was
bundled on the /system partition. A new hidden flag FLAG_PRIVILEGED
has been introduced that reflects the actual right to access these
permissions.
At some point the "system" permission category will be
renamed to "privileged".
Bug 8765951
Change-Id: I6f0fd9cdb9170e076dfc66d83ecea76f8dd7335d
Continuing to flesh out storage backends by adding an external
storage document backend. Still rough, but it can traverse files
and directories.
Early pass at OPEN/CREATE_DOC picker UI, which offers to traverse
any known storage backends. Supports opening subdirectories and
returning a picked file.
Change-Id: Idc3554036b3816a93d9b465ee8a620746859d2ae
