1 files changed, 21 insertions, 1 deletions
diff --git a/src/imap/capability.rs b/src/imap/capability.rs
index 53d7b7d..6533ccb 100644
--- a/src/imap/capability.rs
+++ b/src/imap/capability.rs
@@ -1,9 +1,11 @@
-use imap_codec::imap_types::command::SelectExamineModifier;
+use imap_codec::imap_types::command::{FetchModifier, StoreModifier, SelectExamineModifier};
 use imap_codec::imap_types::core::NonEmptyVec;
 use imap_codec::imap_types::extensions::enable::{CapabilityEnable, Utf8Kind};
 use imap_codec::imap_types::response::Capability;
 use std::collections::HashSet;
 
+use crate::imap::attributes::AttributesProxy;
+
 fn capability_unselect() -> Capability<'static> {
     Capability::try_from("UNSELECT").unwrap()
 }
@@ -91,6 +93,24 @@ impl ClientCapability {
         self.condstore = self.condstore.enable();
     }
 
+    pub fn attributes_enable(&mut self, ap: &AttributesProxy) {
+        if ap.is_enabling_condstore() {
+            self.enable_condstore()
+        }
+    }
+
+    pub fn fetch_modifiers_enable(&mut self, mods: &[FetchModifier]) {
+        if mods.iter().any(|x| matches!(x, FetchModifier::ChangedSince(..))) {
+            self.enable_condstore()
+        }
+    }
+
+    pub fn store_modifiers_enable(&mut self, mods: &[StoreModifier]) {
+        if mods.iter().any(|x| matches!(x, StoreModifier::UnchangedSince(..))) {
+            self.enable_condstore()
+        }
+    }
+
     pub fn select_enable(&mut self, mods: &[SelectExamineModifier]) {
         for m in mods.iter() {
             match m {