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Extend Vault with directory selection, renaming.

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Bug: 12350110
Change-Id: I41747fdffa79688163c32392ffbeb78320717f92
This commit is contained in:
Jeff Sharkey
2014-05-22 09:27:45 -07:00
parent 5214072d6c
commit 7feee23faf
1 changed files with 60 additions and 1 deletions
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61
samples/Vault/src/com/example/android/vault/VaultProvider.java
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@@ -36,6 +36,7 @@ import android.provider.DocumentsContract.Document;
import android.provider.DocumentsContract.Root;
import android.provider.DocumentsProvider;
import android.security.KeyChain;
import android.text.TextUtils;
import android.util.Log;
import org.json.JSONArray;
@@ -204,7 +205,8 @@ public class VaultProvider extends DocumentsProvider {
final MatrixCursor result = new MatrixCursor(resolveRootProjection(projection));
final RowBuilder row = result.newRow();
row.add(Root.COLUMN_ROOT_ID, DEFAULT_ROOT_ID);
row.add(Root.COLUMN_FLAGS, Root.FLAG_SUPPORTS_CREATE | Root.FLAG_LOCAL_ONLY);
row.add(Root.COLUMN_FLAGS, Root.FLAG_SUPPORTS_CREATE | Root.FLAG_LOCAL_ONLY
| Root.FLAG_SUPPORTS_DIR_SELECTION);
row.add(Root.COLUMN_TITLE, getContext().getString(R.string.app_label));
row.add(Root.COLUMN_DOCUMENT_ID, DEFAULT_DOCUMENT_ID);
row.add(Root.COLUMN_ICON, R.drawable.ic_lock_lock);
@@ -242,6 +244,7 @@ public class VaultProvider extends DocumentsProvider {
} else {
flags |= Document.FLAG_SUPPORTS_WRITE;
}
flags |= Document.FLAG_SUPPORTS_RENAME;
flags |= Document.FLAG_SUPPORTS_DELETE;
final RowBuilder row = result.newRow();
@@ -253,6 +256,39 @@ public class VaultProvider extends DocumentsProvider {
row.add(Document.COLUMN_LAST_MODIFIED, meta.optLong(Document.COLUMN_LAST_MODIFIED));
}
@Override
public boolean isChildDocument(String parentDocumentId, String documentId) {
if (TextUtils.equals(parentDocumentId, documentId)) {
return true;
}
try {
final long parentDocId = Long.parseLong(parentDocumentId);
final EncryptedDocument parentDoc = getDocument(parentDocId);
// Recursively search any children
// TODO: consider building an index to optimize this check
final JSONObject meta = parentDoc.readMetadata();
if (Document.MIME_TYPE_DIR.equals(meta.getString(Document.COLUMN_MIME_TYPE))) {
final JSONArray children = meta.getJSONArray(KEY_CHILDREN);
for (int i = 0; i < children.length(); i++) {
final String childDocumentId = children.getString(i);
if (isChildDocument(childDocumentId, documentId)) {
return true;
}
}
}
} catch (IOException e) {
throw new IllegalStateException(e);
} catch (GeneralSecurityException e) {
throw new IllegalStateException(e);
} catch (JSONException e) {
throw new IllegalStateException(e);
}
return false;
}
@Override
public String createDocument(String parentDocumentId, String mimeType, String displayName)
throws FileNotFoundException {
@@ -313,6 +349,29 @@ public class VaultProvider extends DocumentsProvider {
}
}
@Override
public String renameDocument(String documentId, String displayName)
throws FileNotFoundException {
final long docId = Long.parseLong(documentId);
try {
final EncryptedDocument doc = getDocument(docId);
final JSONObject meta = doc.readMetadata();
meta.put(Document.COLUMN_DISPLAY_NAME, displayName);
doc.writeMetadataAndContent(meta, null);
return null;
} catch (IOException e) {
throw new IllegalStateException(e);
} catch (GeneralSecurityException e) {
throw new IllegalStateException(e);
} catch (JSONException e) {
throw new IllegalStateException(e);
}
}
@Override
public void deleteDocument(String documentId) throws FileNotFoundException {
final long docId = Long.parseLong(documentId);