diff --git a/honoka/src/honoka_def.h b/honoka/src/honoka_def.h
index 09cc72c..cfd6d15 100644
--- a/honoka/src/honoka_def.h
+++ b/honoka/src/honoka_def.h
@@ -127,6 +127,10 @@
 #define HONOKA_DEFAULT_SELECT_PREDICTION_DIRECT   false
 #define HONOKA_CONFIG_PREDICTION_DELAY             "/IMEngine/Honoka/PredictionDelay"
 #define HONOKA_DEFAULT_PREDICTION_DELAY            3
+#define HONOKA_CONFIG_TB_AUTOSHRINK_TIMER          "/IMEngine/Honoka/ToolbarAutoShrink"
+#define HONOKA_DEFAULT_TB_AUTOSHRINK_TIMER         0
+#define HONOKA_CONFIG_TB_AUTOEXPAND                "/IMEngine/Honoka/ToolbarAutoExpand"
+#define HONOKA_DEFAULT_TB_AUTOEXPAND               false
 #define HONOKA_CONFIG_SAVE_SETTING                 "/IMEngine/Honoka/SaveSetting"
 #define HONOKA_DEFAULT_SAVE_SETTING                false
 
diff --git a/honoka/src/honoka_imengine.cpp b/honoka/src/honoka_imengine.cpp
index 2dfad2b..fa253a2 100644
--- a/honoka/src/honoka_imengine.cpp
+++ b/honoka/src/honoka_imengine.cpp
@@ -348,6 +348,8 @@
     // @todo if connected to jserver, should disconnect this.
 
     alp = _scim_config->read(String(HONOKA_CONFIG_ALP),HONOKA_DEFAULT_ALP);
+    ast = _scim_config->read(String(HONOKA_CONFIG_TB_AUTOSHRINK_TIMER),HONOKA_DEFAULT_TB_AUTOSHRINK_TIMER);
+    aep = _scim_config->read(String(HONOKA_CONFIG_TB_AUTOEXPAND),HONOKA_DEFAULT_TB_AUTOEXPAND);
     mini_status = _scim_config->read(String(HONOKA_CONFIG_MINISTATUS),HONOKA_DEFAULT_MINISTATUS);
     numkeyselect = _scim_config->read(String(HONOKA_CONFIG_NUMKEY_SELECT),HONOKA_DEFAULT_NUMKEY_SELECT);
     prediction = _scim_config->read(String(HONOKA_CONFIG_PREDICTION),HONOKA_DEFAULT_PREDICTION);
@@ -906,6 +908,14 @@
     send_helper_event("e135e0ee-5588-423e-a027-f07d769c12a3",trans);
     */
     
+    if (ast) {
+        ast_id = HonokaTimer::self()->appendDelayEvent(ast);
+    }
+    if (aep && shrunkToolbar) {
+        shrunkToolbar = false;
+        m_proplist.clear();
+        updateProperty();
+    }
     KeyEvent ke = key;
     if (ke.mask & SCIM_KEY_CapsLockMask) ke.mask -= SCIM_KEY_CapsLockMask;
     if (ke.mask & SCIM_KEY_NumLockMask) ke.mask -= SCIM_KEY_NumLockMask;
@@ -2006,6 +2016,11 @@
             hide_lookup_table();
         }
     }
+    if (ast && (id == ast_id) && (!shrunkToolbar)) {
+        shrunkToolbar = true;
+        m_proplist.clear();
+        updateProperty();
+    }
 }
 
 
diff --git a/honoka/src/honoka_imengine.h b/honoka/src/honoka_imengine.h
index 0ae59e1..695b425 100644
--- a/honoka/src/honoka_imengine.h
+++ b/honoka/src/honoka_imengine.h
@@ -133,6 +133,9 @@
     bool m_no_update;
     int alp;
     int alp_count;
+    uint32 ast;
+    int ast_id;
+    bool aep;
     bool changeable_splitter;
     bool numkeyselect;
     bool mini_status;