From 6c4248251c968c27ff33fe75d8afa8660b16958a Mon Sep 17 00:00:00 2001
From: chrox <chrox.huang@gmail.com>
Date: Sat, 13 Jul 2013 15:24:10 +0800
Subject: [PATCH] compress paths like "test/pdf/../epub" into "test/epub" in
 FileChooser This patch fixes Bug #107

---
 frontend/ui/widget/filechooser.lua | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/frontend/ui/widget/filechooser.lua b/frontend/ui/widget/filechooser.lua
index 589d69b92..38d70bbff 100644
--- a/frontend/ui/widget/filechooser.lua
+++ b/frontend/ui/widget/filechooser.lua
@@ -13,7 +13,17 @@ function FileChooser:init()
 	self:changeToPath(self.path)
 end
 
+function FileChooser:compressPath(item_path)
+	-- compress paths like "test/pdf/../epub" into "test/epub"
+	local path = item_path
+	while path:match("/[^/]+[/][\\.][\\.]") do
+		path = path:gsub("/[^/]+[/][\\.][\\.]", "")
+	end
+	return path
+end
+
 function FileChooser:changeToPath(path)
+	path = self:compressPath(path)
 	local dirs = {}
 	local files = {}
 	self.path = path