Merge pull request #487 from thotypous/master

Cleanup link_states and fix a rare highlight bug

frontend/ui/reader/readerhighlight.lua

@@ -302,7 +302,7 @@ function ReaderHighlight:lookup(selected_word)
 		local word_box = self.view:pageToScreenTransform(self.hold_pos.page, selected_word.sbox)
 		self.ui:handleEvent(Event:new("LookupWord", self, selected_word.word, word_box))
 	-- or we will do OCR
-	elseif selected_word.sbox then
+	elseif selected_word.sbox and self.hold_pos then
 		local word = self.ui.document:getOCRWord(self.hold_pos.page, selected_word)
 		DEBUG("OCRed word:", word)
 		local word_box = self.view:pageToScreenTransform(self.hold_pos.page, selected_word.sbox)

frontend/ui/reader/readerlink.lua

@@ -16,6 +16,11 @@ function ReaderLink:init()
 	end
 end
 
+function ReaderLink:onReadSettings(config)
+	-- called when loading new document
+	self.link_states = {}
+end
+
 function ReaderLink:initGesListener()
 	if Device:isTouchDevice() then
 		self.ges_events = {