Implement clear and export data actions.

Merge and reuse modal dialogs.

1 files changed, 16 insertions, 1 deletions

diff --git a/readme.md b/readme.md
index 026c5eb..fc33cf1 100644
--- a/readme.md
+++ b/readme.md
@@ -14,7 +14,22 @@ Surgery Log
 - [x] edited entry does not show updated once saved;
 - [x] edited entry shows updated when selected then press back button;
 - [x] load/store database CSV file;
-- [ ] export database to CSV file;
+- [x] export database to CSV file;
+- [x] allow to reset database;
+- [ ] Implement file access permission check on Android:
+    ```py
+    	if OS.get_name() == "Android":
+		var has_permissions := false
+		while not has_permissions:
+			var permissions := Array(OS.get_granted_permissions())
+			if not permissions.has("android.permission.READ_EXTERNAL_STORAGE") \
+				or not permissions.has("android.permission.WRITE_EXTERNAL_STORAGE"):
+				OS.request_permissions()
+	#			await get_tree().create_timer(1).timeout
+				yield(get_tree().create_timer(1), "timeout") # - for Godot 3 branch
+			else:
+				has_permissions = true
+    ```
 - [ ] load/store filters CSV file;
 - [ ] import/export filters to CSV file;
 - [ ] add auto-fill buttons on stage screen: