Fix scroll_to_index in data_list

druid/base/scroll.lua

@@ -203,7 +203,10 @@ end
 -- @usage scroll:scroll_to(vmath.vector3(0), true)
 function Scroll.scroll_to(self, point, is_instant)
 	local b = self.available_pos
-	local target = vmath.vector3(-point.x, -point.y, 0)
+	local target = vmath.vector3(
+		self._is_horizontal_scroll and -point.x or self.target_position.x,
+		self._is_vertical_scroll and -point.y or self.target_position.y,
+		0)
 	target.x = helper.clamp(target.x, b.x, b.z)
 	target.y = helper.clamp(target.y, b.y, b.w)
 
@@ -690,7 +693,10 @@ function Scroll._update_size(self)
 
 	self.available_pos_extra = get_border_vector(view_border - content_border_extra, self._offset)
 	self.available_size_extra = get_size_vector(self.available_pos_extra)
-	self:_update_params()
+
+	self:_set_scroll_position(self.position)
+	self.target_position.x = self.position.x
+	self.target_position.y = self.position.y
 end
 
 

druid/extended/data_list.lua

@@ -178,9 +178,13 @@ end
 -- @tparam DataList self
 -- @tparam number index
 function DataList.scroll_to_index(self, index)
-	self.top_index = helper.clamp(index, 1, #self._data)
+	local target = helper.clamp(index, 1, #self._data)
+	self.top_index = target
 	self:_refresh()
-	self.scroll.on_scroll:trigger(self:get_context(), self)
+
+	if self._data_visual[target] then
+		self.scroll:scroll_to(gui.get_position(self._data_visual[target].node), true)
+	end
 end
 
 
@@ -241,8 +245,8 @@ function DataList._check_elements(self)
 		end
 	end
 
-	self:_check_elements_from(self.top_index + 1, 1)
 	self:_check_elements_from(self.top_index, -1)
+	self:_check_elements_from(self.top_index + 1, 1)
 
 	for index, data in pairs(self._data_visual) do
 		self.top_index = math.min(self.top_index or index, index)

example/examples/data_list/navigate/navigate.gui_script

@@ -34,7 +34,7 @@ function init(self)
 	-- Disable slider input, now we can not use slider with data list
 	self.slider_simple:set_input_enabled(false)
 	self.data_list_simple.on_scroll_progress_change:subscribe(function(_, progress)
-		self.slider_simple:set(progress)
+		self.slider_simple:set(progress, true)
 	end)
 
 	self.druid:new_button("button_simple_first/button", function()