add last read page/percent setting support

frontend/ui/reader/readerpaging.lua

@@ -29,6 +29,7 @@ function ReaderPaging:gotoPage(number)
 	end
 	if number > self.number_of_pages
 	or number < 1 then
+		DEBUG("wrong page number: "..number.."!")
 		return false
 	end
 	DEBUG("going to page number", number)
@@ -39,6 +40,10 @@ function ReaderPaging:gotoPage(number)
 	return true
 end
 
+function ReaderPaging:onReadSettings(config)
+	self:gotoPage(config:readSetting("last_page") or 1)
+end
+
 function ReaderPaging:onPageUpdate(new_page_no)
 	self.current_page = new_page_no
 end
@@ -59,3 +64,7 @@ function ReaderPaging:onGotoPageRel(diff)
 	self:gotoPage(self.current_page + diff)
 	return true
 end
+
+function ReaderPaging:onCloseDocument()
+	self.ui.doc_settings:saveSetting("last_page", self.current_page)
+end

frontend/ui/reader/readerrolling.lua

@@ -31,10 +31,6 @@ function ReaderRolling:init()
 	self.old_doc_height = self.doc_height
 end
 
-function ReaderRolling:onPosUpdate(new_pos)
-	self.current_pos = new_pos
-end
-
 function ReaderRolling:gotoPos(new_pos)
 	if new_pos == self.current_pos then return end
 	if new_pos < 0 then new_pos = 0 end
@@ -46,6 +42,14 @@ function ReaderRolling:gotoPercent(new_percent)
 	self:gotoPos(new_percent * self.doc_height / 10000)
 end
 
+function ReaderRolling:onReadSettings(config)
+	self:gotoPercent(config:readSetting("last_percent") or 0)
+end
+
+function ReaderRolling:onPosUpdate(new_pos)
+	self.current_pos = new_pos
+end
+
 -- remember to signal this event the document has been zoomed,
 -- font has been changed, or line height has been changed.
 function ReaderRolling:onUpdatePos()
@@ -84,3 +88,8 @@ function ReaderRolling:onZoom()
 	--@TODO re-read doc_height info after font or lineheight changes  05.06 2012 (houqp)
 	self:onUpdatePos()
 end
+
+function ReaderRolling:onCloseDocument()
+	self.ui.doc_settings:saveSetting("last_percent", 
+		10000 * self.current_pos / self.doc_height)
+end