Update the message and the logic for block message

1. option update now goes with showCustomInputMethodInfo, no need to
   block with keyboard event.
2. select schema shouldn't be the trigger of block message.
3. block message after success/error to prevent certain flood case if
   schema is invalid.

src/rimeengine.cpp

@@ -568,6 +568,7 @@ void RimeEngine::notify(RimeSessionId session, const std::string &messageType,
     const char *icon = "";
     const char *tipId = "";
     int timeout = 3000;
+    bool blockMessage = false;
     if (messageType == "deploy") {
         tipId = "fcitx-rime-deploy";
         icon = "fcitx_rime_deploy";
@@ -585,10 +586,12 @@ void RimeEngine::notify(RimeSessionId session, const std::string &messageType,
             }
             updateSchemaMenu();
             refreshStatusArea(0);
+            blockMessage = true;
         } else if (messageValue == "failure") {
             needRefreshAppOption_ = false;
             message = _("Rime has encountered an error. "
                         "See log for details.");
+            blockMessage = true;
         }
     } else if (messageType == "option") {
         updateStatusArea(session);
@@ -603,6 +606,10 @@ void RimeEngine::notify(RimeSessionId session, const std::string &messageType,
         notifications->call<INotifications::showTip>(
             tipId, _("Rime"), icon, _("Rime"), message, timeout);
     }
+    // Block message after error / success.
+    if (blockMessage) {
+        blockNotificationFor(30000);
+    }
 }
 
 RimeState *RimeEngine::state(InputContext *ic) {

src/rimestate.cpp

@@ -148,7 +148,6 @@ void RimeState::selectSchema(const std::string &schema) {
     if (api->is_maintenance_mode()) {
         return;
     }
-    engine_->blockNotificationFor(30000);
     api->set_option(session(), RIME_ASCII_MODE, false);
     api->select_schema(session(), schema.data());
 }
@@ -460,7 +459,6 @@ void RimeState::updateUI(InputContext *ic, bool keyRelease) {
         inputPanel.setAuxDown(Text());
     }
     if (newEmptyExceptAux && lastMode_ != subMode()) {
-        engine_->blockNotificationFor(30000);
         engine_->instance()->showInputMethodInformation(ic);
         ic->updateUserInterface(UserInterfaceComponent::StatusArea);
     }