From 9703bd31ad9db1083eb2fad646c5a67921db5b40 Mon Sep 17 00:00:00 2001
From: x0b <x0bdev@gmail.com>
Date: Thu, 6 Feb 2020 16:45:11 +0100
Subject: [PATCH] Fix #1424: Support ACTION_OPEN_DOCUMENT_TREE

---
 .../com/termux/filepicker/TermuxDocumentsProvider.java     | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/com/termux/filepicker/TermuxDocumentsProvider.java b/app/src/main/java/com/termux/filepicker/TermuxDocumentsProvider.java
index 48b16391..ed13ee9d 100644
--- a/app/src/main/java/com/termux/filepicker/TermuxDocumentsProvider.java
+++ b/app/src/main/java/com/termux/filepicker/TermuxDocumentsProvider.java
@@ -71,7 +71,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         row.add(Root.COLUMN_ROOT_ID, getDocIdForFile(BASE_DIR));
         row.add(Root.COLUMN_DOCUMENT_ID, getDocIdForFile(BASE_DIR));
         row.add(Root.COLUMN_SUMMARY, null);
-        row.add(Root.COLUMN_FLAGS, Root.FLAG_SUPPORTS_CREATE | Root.FLAG_SUPPORTS_SEARCH);
+        row.add(Root.COLUMN_FLAGS, Root.FLAG_SUPPORTS_CREATE | Root.FLAG_SUPPORTS_SEARCH | Root.FLAG_SUPPORTS_IS_CHILD);
         row.add(Root.COLUMN_TITLE, applicationName);
         row.add(Root.COLUMN_MIME_TYPES, ALL_MIME_TYPES);
         row.add(Root.COLUMN_AVAILABLE_BYTES, BASE_DIR.getFreeSpace());
@@ -169,6 +169,11 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         return result;
     }
 
+    @Override
+    public boolean isChildDocument(String parentDocumentId, String documentId) {
+        return documentId.startsWith(parentDocumentId);
+    }
+
     /**
      * Get the document id given a file. This document id must be consistent across time as other
      * applications may save the ID and use it to reference documents later.