add toc menu for touch UI

frontend/ui/reader/readertoc.lua

@@ -1,12 +1,20 @@
 ReaderToc = InputContainer:new{
-	key_events = {
+	toc_menu_title = "Table of contents",
-		ShowToc = { {"T"}, doc = "show Table of Content menu"},
-	},
-	dimen = Geom:new{ w = Screen:getWidth()-20, h = Screen:getHeight()-20},
 	current_page = 0,
 	current_pos = 0,
 }
 
+function ReaderToc:init()
+	if not Device:hasNoKeyboard() then
+		self.key_events = {
+			ShowToc = {
+				{ "T" },
+				doc = "show Table of Content menu" },
+		}
+	end
+	self.ui.menu:registerToMainMenu(self)
+end
+
 function ReaderToc:cleanUpTocTitle(title)
 	return (title:gsub("\13", ""))
 end
@@ -56,17 +64,29 @@ function ReaderToc:onShowToc()
 	for _,v in ipairs(items) do
 		v.text = ("        "):rep(v.depth-1)..self:cleanUpTocTitle(v.title)
 	end
+
 	local toc_menu = Menu:new{
 		title = "Table of Contents",
 		item_table = items,
-		dimen = self.dimen,
+		ui = self.ui,
-		ui = self.ui
+		dimen = Geom:new{ 
+			w = Screen:getWidth()-20, 
+			h = Screen:getHeight()-20
+		},
 	}
 	function toc_menu:onMenuChoice(item)
 		self.ui:handleEvent(Event:new("PageUpdate", item.page))
 	end
 
-	UIManager:show(toc_menu)
+	local menu_container = CenterContainer:new{
+		dimen = Screen:getSize(),
+		toc_menu,
+	}
+	toc_menu.close_callback = function() 
+		UIManager:close(menu_container)
+	end
+
+	UIManager:show(menu_container)
 end
 
 function ReaderToc:onSetDimensions(dimen)
@@ -81,4 +101,12 @@ function ReaderToc:onPosUpdate(new_pos)
 	self.current_pos = new_pos
 end
 
-
+function ReaderToc:addToMainMenu(item_table)
+	-- insert table to main reader menu
+	table.insert(item_table, {
+		text = self.toc_menu_title,
+		callback = function()
+			self:onShowToc()
+		end,
+	})
+end

frontend/ui/readerui.lua

@@ -56,18 +56,18 @@ function ReaderUI:init()
 		view = self[1],
 		ui = self
 	}
-	-- Toc menu controller
+	-- reader menu controller
-	self[3] = ReaderToc:new{
+	self[3] = ReaderMenu:new{
-		dialog = self.dialog,
 		view = self[1],
 		ui = self
 	}
-	-- reader menu controller
+	self.menu = self[3] -- hold reference to menu widget
-	self[4] = ReaderMenu:new{
+	-- Toc menu controller
+	self[4] = ReaderToc:new{
+		dialog = self.dialog,
 		view = self[1],
 		ui = self
 	}
-	self.menu = self[4] -- hold reference to menu widget
 
 	if self.document.info.has_pages then
 		-- for page specific controller