add notification widget and used it in readerbookmark

frontend/ui/notification.lua

@@ -0,0 +1,52 @@
+require "ui/ui"
+require "ui/widget"
+
+--[[
+Widget that displays a tiny notification on top of screen
+--]]
+Notification = InputContainer:new{
+	face = Font:getFace("infofont", 20),
+	text = "Null Message",
+	timeout = nil,
+
+	key_events = {
+		AnyKeyPressed = { { Input.group.Any }, seqtext = "any key", doc = "close dialog" }
+	}
+}
+
+function Notification:init()
+	-- we construct the actual content here because self.text is only available now
+	self[1] = CenterContainer:new{
+		dimen = Geom:new{
+			w = Screen:getWidth(),
+			h = Screen:getHeight()/10,
+		},
+		ignore = "height",
+		FrameContainer:new{
+			background = 0,
+			radius = 0,
+			HorizontalGroup:new{
+				align = "center",
+				TextBoxWidget:new{
+					text = self.text,
+					face = self.face,
+				}
+			}
+		}
+	}
+end
+
+function Notification:onShow()
+	-- triggered by the UIManager after we got successfully shown (not yet painted)
+	if self.timeout then
+		UIManager:scheduleIn(self.timeout, function() UIManager:close(self) end)
+	end
+	return true
+end
+
+function Notification:onAnyKeyPressed()
+	-- triggered by our defined key events
+	UIManager:close(self)
+	return true
+end
+

frontend/ui/reader/readerbookmark.lua

@@ -1,3 +1,5 @@
+require "ui/notification"
+
 ReaderBookmark = InputContainer:new{
 	bm_menu_title = "Bookmarks",
 	bookmarks = nil,
@@ -51,7 +53,7 @@ function ReaderBookmark:onAddBookmark()
 	if not self:addBookmark(pn_or_xp) then
 		noti_text = "Page already marked!"
 	end
-	UIManager:show(InfoMessage:new{
+	UIManager:show(Notification:new{
 		text = noti_text,
 		timeout = 3
 	})