Dispatcher: fix action deleted arg (#13488)

frontend/apps/reader/modules/readerfont.lua

@@ -296,10 +296,15 @@ end
 
 function ReaderFont:onSetFont(face)
     if face and self.font_face ~= face then
-        self.font_face = face
-        self.ui.document:setFontFace(face)
-        -- signal readerrolling to update pos in new height
-        self.ui:handleEvent(Event:new("UpdatePos"))
+        for _, fontinfo in pairs(FontList.fontinfo) do
+            if fontinfo[1].name == face then
+                self.font_face = face
+                self.ui.document:setFontFace(face)
+                -- signal readerrolling to update pos in new height
+                self.ui:handleEvent(Event:new("UpdatePos"))
+                return
+            end
+        end
     end
 end
 

frontend/apps/reader/modules/readerstyletweak.lua

@@ -724,6 +724,7 @@ function ReaderStyleTweak:onToggleStyleTweak(tweak_id, item, no_notification)
     if type(tweak_id) == "table" then -- Dispatcher action 'Style tweak set on/off'
         tweak_id, toggle = unpack(tweak_id)
     end
+    if self.tweaks_by_id[tweak_id] == nil then return true end
     local enabled, g_enabled = self:isTweakEnabled(tweak_id)
     if enabled == toggle then return true end
     local text

frontend/dispatcher.lua

@@ -655,7 +655,8 @@ function Dispatcher:getNameFromItem(item, settings, dont_show_value)
                 settingsList[item].args, settingsList[item].toggle = settingsList[item].args_func()
             end
             local value_num = util.arrayContains(settingsList[item].args, value)
-            display_value = settingsList[item].toggle[value_num] or string.format("%.1f", value)
+            display_value = settingsList[item].toggle[value_num]
+                or (type(value) == "number" and string.format("%.1f", value) or value)
         end
     elseif category == "absolutenumber" then
         display_value = tostring(value)