add readerbookmark

frontend/ui/reader/readerbookmark.lua

@@ -0,0 +1,138 @@
+ReaderBookmark = InputContainer:new{
+	bm_menu_title = "Bookmarks",
+	bookmarks = nil,
+}
+
+function ReaderBookmark:init()
+	if Device:hasKeyboard() then
+		self.key_events = {
+			ShowToc = {
+				{ "B" },
+				doc = "show bookmarks" },
+		}
+	elseif Device:isTouchDevice() then
+		self.ges_events = {
+			AddBookmark = {
+				GestureRange:new{
+					ges = "double_tap",
+					range = Geom:new{
+						x = Screen:getWidth()/2, y = 0,
+						w = Screen:getWidth()/2,
+						h = Screen:getHeight()/2
+					}
+				}
+			},
+		}
+	end
+	self.ui.menu:registerToMainMenu(self)
+end
+
+function ReaderBookmark:onReadSettings(config)
+	self.bookmarks = config:readSetting("bookmarks") or {}
+end
+
+function ReaderBookmark:onCloseDocument()
+	self.ui.doc_settings:saveSetting("bookmarks", self.bookmarks)
+end
+
+function ReaderBookmark:onSetDimensions(dimen)
+	self.dimen = dimen
+end
+
+function ReaderBookmark:onAddBookmark()
+	local pn_or_xp = nil
+	if self.ui.document.getXPointer then
+		pn_or_xp = self.ui.document:getXPointer()
+	else
+		pn_or_xp = self.view.state.page
+	end
+	self:addBookmark(pn_or_xp)
+	return true
+end
+
+function ReaderBookmark:onShowBookmark()
+	-- build up item_table
+	for k, v in	ipairs(self.bookmarks) do
+		local page = v.page
+		-- for CREngine, bookmark page is xpointer
+		if type(page) == "string" then
+			page = self.ui.document:getPageFromXPointer(v.page)
+		end
+		v.text = "Page "..page.." "..v.notes.." @ "..v.datetime
+	end
+
+	local bm_menu = Menu:new{
+		title = "Bookmarks",
+		item_table = self.bookmarks,
+		width = Screen:getWidth()-20, 
+		height = Screen:getHeight(),
+	}
+	-- buid up menu widget method as closure
+	local doc = self.ui.document
+	local sendEv = function(ev)
+		self.ui:handleEvent(ev)
+	end
+	function bm_menu:onMenuChoice(item)
+		if doc.info.has_pages then
+			sendEv(Event:new("PageUpdate", item.page))
+		elseif self.view.view_mode == "page" then
+			sendEv(Event:new("PageUpdate", doc:getPageFromXPointer(item.page)))
+		else
+			sendEv(Event:new("PosUpdate", doc:getPosFromXPointer(item.page)))
+		end
+	end
+
+	local menu_container = CenterContainer:new{
+		dimen = Screen:getSize(),
+		bm_menu,
+	}
+	bm_menu.close_callback = function() 
+		UIManager:close(menu_container)
+	end
+
+	UIManager:show(menu_container)
+	return true
+end
+
+function ReaderBookmark:addToMainMenu(item_table)
+	-- insert table to main reader menu
+	table.insert(item_table, {
+		text = self.bm_menu_title,
+		callback = function()
+			self:onShowBookmark()
+		end,
+	})
+end
+
+--[[
+return nil if page already marked, otherwise, return true
+for CREngine, bookmark page is xpointer instead of page number
+--]]
+function ReaderBookmark:addBookmark(pn_or_xp)
+	for k,v in ipairs(self.bookmarks) do
+		if v.page == pn_or_xp then
+			return nil
+		end
+	end
+	-- build notes from TOC
+	local notes = self.ui.toc:getTocTitleByPage(pn_or_xp)
+	if notes ~= "" then
+		notes = "in "..notes
+	end
+	mark_item = {
+		page = pn_or_xp,
+		datetime = os.date("%Y-%m-%d %H:%M:%S"),
+		notes = notes,
+	}
+	table.insert(self.bookmarks, mark_item)
+	table.sort(self.bookmarks, function(a,b)
+		return self:isBookmarkInSequence(a, b)
+	end)
+	return true
+end
+
+function ReaderBookmark:isBookmarkInSequence(a, b)
+	return a.page < b.page
+end
+
+

frontend/ui/readerui.lua

@@ -68,12 +68,14 @@ function ReaderUI:init()
 		ui = self
 	}
 	self.menu = self[3] -- hold reference to menu widget
-	-- Toc menu controller
+	-- Table of content controller
 	self[4] = ReaderToc:new{
 		dialog = self.dialog,
 		view = self[1],
 		ui = self
 	}
+	self.toc = self[4] -- hold reference to bm widget
+	-- bookmark controller
 	local reader_bm = ReaderBookmark:new{
 		dialog = self.dialog,
 		view = self[1],