Page turn animations

Kindle PW5 (MTK) with hardware support
Currently only in Crengine

frontend/apps/reader/modules/readerrolling.lua

@@ -1006,6 +1006,9 @@ function ReaderRolling:_gotoPos(new_pos, do_dim_area)
     else
         self.view.dim_area:clear()
     end
+    if self.current_pos and not UIManager.currently_scrolling then
+        self.ui:handleEvent(Event:new("PageChangeAnimation", new_pos > self.current_pos))
+    end
     self.ui.document:gotoPos(new_pos)
     -- The current page we get in scroll mode may be a bit innacurate,
     -- but we give it anyway to onPosUpdate so footer and statistics can
@@ -1038,6 +1041,9 @@ function ReaderRolling:_gotoPage(new_page, free_first_page, internal)
             end
         end
     end
+    if self.current_page then
+        self.ui:handleEvent(Event:new("PageChangeAnimation", new_page > self.current_page))
+    end
     self.ui.document:gotoPage(new_page, internal)
     if self.view.view_mode == "page" then
         self.ui:handleEvent(Event:new("PageUpdate", self.ui.document:getCurrentPage()))

frontend/apps/reader/modules/readerview.lua

@@ -889,6 +889,14 @@ function ReaderView:onRotationUpdate(rotation)
     self:recalculate()
 end
 
+function ReaderView:onPageChangeAnimation(forward)
+    if Device:canDoSwipeAnimation() and G_reader_settings:isTrue("swipe_animations") then
+        if self.inverse_reading_order then forward = not forward end
+        Screen:setSwipeAnimations(true)
+        Screen:setSwipeDirection(forward)
+    end
+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