Page turn animations: add to dispatcher (#9123)

xref: https://www.mobileread.com/forums/showthread.php?p=4224443&postcount=1119

frontend/apps/reader/modules/readerview.lua

@@ -897,6 +897,10 @@ function ReaderView:onPageChangeAnimation(forward)
     end
 end
 
+function ReaderView:onTogglePageChangeAnimation()
+    G_reader_settings:flipNilOrFalse("swipe_animations")
+end
+
 function ReaderView:onReaderFooterVisibilityChange()
     -- Don't bother ReaderRolling with this nonsense, the footer's height is NOT handled via visible_area there ;)
     if self.ui.paging and self.state.page then

frontend/dispatcher.lua

@@ -129,6 +129,7 @@ local settingsList = {
     book_cover = {category="none", event="ShowBookCover", title=_("Book cover"), reader=true, separator=true},
     show_config_menu = {category="none", event="ShowConfigMenu", title=_("Show bottom menu"), reader=true},
     toggle_bookmark = {category="none", event="ToggleBookmark", title=_("Toggle bookmark"), reader=true},
+    toggle_page_change_Animation = {category="none", event="TogglePageChangeAnimation", title=_("Toggle page turn animations"), reader=true, condition=Device:canDoSwipeAnimation()},
     toggle_inverse_reading_order = {category="none", event="ToggleReadingOrder", title=_("Toggle page turn direction"), reader=true, separator=true},
     cycle_highlight_action = {category="none", event="CycleHighlightAction", title=_("Cycle highlight action"), reader=true},
     cycle_highlight_style = {category="none", event="CycleHighlightStyle", title=_("Cycle highlight style"), reader=true},

frontend/ui/elements/page_turns.lua

@@ -148,7 +148,7 @@ if Device:canDoSwipeAnimation() then
             return G_reader_settings:isTrue("swipe_animations")
         end,
         callback = function()
-            G_reader_settings:flipNilOrFalse("swipe_animations")
+            UIManager:broadcastEvent(Event:new("TogglePageChangeAnimation"))
         end,
         separator = true,
     })