ConfigDialog: remove uneeded support for muliple events

Fixes reflow support for dispatcher

frontend/apps/reader/modules/readerpaging.lua

@@ -1172,13 +1172,17 @@ function ReaderPaging:onGotoPrevChapter()
     return true
 end
 
-function ReaderPaging:onToggleReflow()
+function ReaderPaging:onReflowUpdated()
-    self.view.document.configurable.text_wrap = bit.bxor(self.view.document.configurable.text_wrap, 1)
     self.ui:handleEvent(Event:new("RedrawCurrentPage"))
     self.ui:handleEvent(Event:new("RestoreZoomMode"))
     self.ui:handleEvent(Event:new("InitScrollPageStates"))
 end
 
+function ReaderPaging:onToggleReflow()
+    self.view.document.configurable.text_wrap = bit.bxor(self.view.document.configurable.text_wrap, 1)
+    self:onReflowUpdated()
+end
+
 -- Duplicated in ReaderRolling
 function ReaderPaging:onToggleReadingOrder()
     self.inverse_reading_order = not self.inverse_reading_order

frontend/ui/data/koptoptions.lua

@@ -447,17 +447,7 @@ The first option ("auto") tries to automatically align reflowed text as it is in
                 toggle = {_("off"), _("on")},
                 values = {0, 1},
                 default_value = DKOPTREADER_CONFIG_TEXT_WRAP,
-                events = {
+                event = "ReflowUpdated",
-                    {
-                        event = "RedrawCurrentPage",
-                    },
-                    {
-                        event = "RestoreZoomMode",
-                    },
-                    {
-                        event = "InitScrollPageStates",
-                    },
-                },
                 name_text_hold_callback = optionsutil.showValues,
                 help_text = _([[Reflow mode extracts text and images from the original document, possibly discarding some formatting, and reflows it on the screen for easier reading.
 Some of the other settings are only available when reflow mode is enabled.]]),

frontend/ui/widget/configdialog.lua

@@ -90,7 +90,7 @@ function OptionTextItem:onTapSelect()
     Notification:setNotifySource(Notification.SOURCE_BOTTOM_MENU_ICON)
     self.config:onConfigChoose(self.values, self.name,
                     self.event, self.args,
-                    self.events, self.current_item, self.hide_on_apply)
+                    self.current_item, self.hide_on_apply)
 
     UIManager:setDirty(self.config, function()
         return "fast", self[1].dimen
@@ -169,7 +169,7 @@ function OptionIconItem:onTapSelect()
     Notification:setNotifySource(Notification.SOURCE_BOTTOM_MENU_ICON)
     self.config:onConfigChoose(self.values, self.name,
                     self.event, self.args,
-                    self.events, self.current_item, self.hide_on_apply)
+                    self.current_item, self.hide_on_apply)
 
     UIManager:setDirty(self.config, function()
         return "fast", self[1].dimen
@@ -569,7 +569,6 @@ function ConfigOption:init()
                     values = self.options[c].values,
                     args = self.options[c].args,
                     event = self.options[c].event,
-                    events = self.options[c].events,
                     hide_on_apply = self.options[c].hide_on_apply,
                     config = self.config,
                     enabled = enabled,
@@ -614,7 +613,7 @@ function ConfigOption:init()
                         if arg == "-" or arg == "+" then
                             Notification:setNotifySource(Notification.SOURCE_BOTTOM_MENU_FINE)
                             self.config:onConfigFineTuneChoose(self.options[c].values, self.options[c].name,
-                                self.options[c].event, self.options[c].args, self.options[c].events, arg, self.options[c].hide_on_apply,
+                                self.options[c].event, self.options[c].args, arg, self.options[c].hide_on_apply,
                                 self.options[c].fine_tune_param)
                         elseif arg == "⋮" then
                             Notification:setNotifySource(Notification.SOURCE_BOTTOM_MENU_MORE)
@@ -623,7 +622,7 @@ function ConfigOption:init()
                         else
                                 Notification:setNotifySource(Notification.SOURCE_BOTTOM_MENU_PROGRESS)
                             self.config:onConfigChoose(self.options[c].values, self.options[c].name,
-                                self.options[c].event, self.options[c].args, self.options[c].events, arg, self.options[c].hide_on_apply)
+                                self.options[c].event, self.options[c].args, arg, self.options[c].hide_on_apply)
                         end
 
                         UIManager:setDirty(self.config, function()
@@ -968,15 +967,7 @@ function ConfigDialog:onConfigEvent(option_event, option_arg, when_applied_callb
     return true
 end
 
-function ConfigDialog:onConfigEvents(option_events, arg_index)
+function ConfigDialog:onConfigChoose(values, name, event, args, position, hide_on_apply)
-    for i=1, #option_events do
-        option_events[i].args = option_events[i].args or {}
-        self.ui:handleEvent(Event:new(option_events[i].event, option_events[i].args[arg_index]))
-    end
-    return true
-end
-
-function ConfigDialog:onConfigChoose(values, name, event, args, events, position, hide_on_apply)
     UIManager:tickAfterNext(function()
         -- Repainting may be delayed depending on options
         local refresh_dialog_func = function()
@@ -1003,9 +994,6 @@ function ConfigDialog:onConfigChoose(values, name, event, args, events, position
             args = args or {}
             self:onConfigEvent(event, args[position], when_applied_callback)
         end
-        if events then
-            self:onConfigEvents(events, position)
-        end
         -- Even if each toggle refreshes itself when toggled, we still
         -- need to update and repaint the whole config panel, as other
         -- toggles may have their state (enabled/disabled) modified
@@ -1018,7 +1006,7 @@ function ConfigDialog:onConfigChoose(values, name, event, args, events, position
 end
 
 -- Tweaked variant used with the fine_tune variant of buttonprogress (direction can only be "-" or "+")
-function ConfigDialog:onConfigFineTuneChoose(values, name, event, args, events, direction, hide_on_apply, params)
+function ConfigDialog:onConfigFineTuneChoose(values, name, event, args, direction, hide_on_apply, params)
     UIManager:tickAfterNext(function()
         -- Repainting may be delayed depending on options
         local refresh_dialog_func = function()
@@ -1094,9 +1082,6 @@ function ConfigDialog:onConfigFineTuneChoose(values, name, event, args, events,
             end
             self:onConfigEvent(event, arg, when_applied_callback)
         end
-        if events then
-            self:onConfigEvents(events, direction)
-        end
         -- Even if each toggle refreshes itself when toggled, we still
         -- need to update and repaint the whole config panel, as other
         -- toggles may have their state (enabled/disabled) modified

frontend/ui/widget/toggleswitch.lua

@@ -210,9 +210,6 @@ function ToggleSwitch:onTapSelect(arg, gev)
         self.args = self.args or {}
         self.config:onConfigEvent(self.event, self.args[self.position])
     end
-    if self.events then
-        self.config:onConfigEvents(self.events, self.position)
-    end
     --]]
     if self.callback then
         self.callback(self.position)
@@ -224,7 +221,7 @@ function ToggleSwitch:onTapSelect(arg, gev)
             Notification:setNotifySource(Notification.SOURCE_BOTTOM_MENU_TOGGLE)
         end
         self.config:onConfigChoose(self.values, self.name,
-            self.event, self.args, self.events, self.position, self.hide_on_apply)
+            self.event, self.args, self.position, self.hide_on_apply)
 
         UIManager:setDirty(self.config, function()
             return "ui", self.dimen