fixed bug 16 (incorrect sorting pointer)

4 files changed, 47 insertions, 25 deletions

diff --git a/code/directory.rb b/code/directory.rb
index 92782907..6099d891 100644
--- a/code/directory.rb
+++ b/code/directory.rb
@@ -2,6 +2,7 @@ require 'code/extensions/basic'
 
 class Directory
 	@@filter = nil
+	BAD_TIME = Time.at(1)
 
 	def initialize(path, allow_delay=false)
 		@path = path
@@ -9,6 +10,7 @@ class Directory
 		@files = []
 		@file_size = 0
 		@pointed_file = nil
+		@sort_time = BAD_TIME
 		@width = 1000
 		@read = false
 		@free_space = nil
@@ -47,7 +49,7 @@ class Directory
 	end
 
 	attr_reader(:path, :files, :pos, :width, :files_raw,
-					:file_size, :read)
+					:file_size, :read, :sort_time)
 	attr_accessor(:scheduled)
 
 	def self.filter=(x)
@@ -185,7 +187,7 @@ class Directory
 			log("getting file info of #{@path}")
 			get_file_info 
 		end
-		sort
+		sort_if_needed
 	end
 
 	def schedule()
@@ -196,13 +198,19 @@ class Directory
 		oldfile = @pointed_file
 		read_dir
 		get_file_info
-		sort
+		sort_if_needed
 
 		if @files.include? oldfile
 			self.pointed_file = oldfile
 		end
 	end
 
+	def sort_if_needed
+		if @sort_time < Fm.sort_time
+			sort
+		end
+	end
+
 	def sort_sub(x, y)
 		case Option.sort
 		when :ext
@@ -221,6 +229,7 @@ class Directory
 	end
 
 	def sort()
+		@sort_time = Time.now
 		files = @files.sort {|x,y|
 			if Option.list_dir_first
 				if x.dir?
diff --git a/code/draw.rb b/code/draw.rb
index b32c49ff..43f2b8e1 100644
--- a/code/draw.rb
+++ b/code/draw.rb
@@ -66,6 +66,8 @@ module Fm
 
 			break if (f = d.files[lpo]) == nil
 
+			d.sort_if_needed
+
 			mycolor = if lpo == d.pos
 				if infos
 					Color.selected_current_row
diff --git a/code/fm.rb b/code/fm.rb
index a15735b7..168885d4 100644
--- a/code/fm.rb
+++ b/code/fm.rb
@@ -32,6 +32,7 @@ module Fm
 		@bars_thread = nil
 
 		@entering_directory = true
+		@sort_time = Time.now
 		
 		@buffer = ''
 		@pwd = nil
@@ -66,11 +67,12 @@ module Fm
 		boot_up(pwd)
 	end
 
-	attr_reader(:dirs, :pwd)
+	attr_reader(:dirs, :pwd, :sort_time)
 
 	def refresh()
 		begin
 			@pwd.refresh
+			update_pointers
 			draw
 		rescue
 		end
@@ -201,6 +203,7 @@ module Fm
 		oldpath = @path.dup
 
 		# NOTE: @dirs[unknown] is not nil but Directory.new(unknown)
+		## create @path, an array of directory objects
 		@path = [@dirs['/']]
 		unless dir == '/'
 			dir.slice(0)
@@ -216,27 +219,32 @@ module Fm
 		@pwd = @path.last
 		@pwd.pos = @pwd.pos
 
+		## initialize directories in @pwd
 		@pwd.files_raw.dup.each do |x|
 			@dirs[x] if File.directory?(x)
 		end
 
+		## set the title
 		reset_title()
 
+		## ???
 		if @path.size < oldpath.size
 			@pwd.pos = @pwd.files_raw.index(oldpath.last.path) || 0
 		end
 
 		i = 0
 
+		@entering_directory = true
+		Dir.chdir(@pwd.path)
+	end
+
+	def update_pointers
 		@path.each_with_index do |p, i|
 			p.schedule
 			unless i == @path.size - 1
 				p.pointed_file = @path[i+1].path
 			end
 		end
-
-		@entering_directory = true
-		Dir.chdir(@pwd.path)
 	end
 
 	def move_to_trash!(fn)
diff --git a/code/keys.rb b/code/keys.rb
index 3e8c78fd..583171e8 100644
--- a/code/keys.rb
+++ b/code/keys.rb
@@ -435,24 +435,16 @@ module Fm
 
 		## Options {{{
 
-		when /^S(.)$/
-			Option.sort_reverse = $1.ord.between?(65, 90)
+		when SORT_REGEXP
+			how = SORT_KEYS[$1.downcase]
+			log how
 
-			case $1.downcase
-			when 'n'
-				Option.sort = :name
-			when 'e'
-				Option.sort = :ext
-			when 't'
-				Option.sort = :type
-			when 's'
-				Option.sort = :size
-			when 'm'
-				Option.sort = :mtime
-			when 'c'
-				Option.sort = :ctime
-			end
-			@pwd.schedule
+			@sort_time = Time.now
+			Option.sort_reverse = $1.ord.between?(65, 90)
+			Option.sort         = how  if how
+			@path.each do |x| x.sort end
+			update_pointers
+#			@pwd.schedule
 
 		when 't!'
 			Option.confirm ^= true
@@ -544,7 +536,8 @@ module Fm
 		@buffer = '' unless @buffer == '' or @buffer =~ key_regexp
 	end
 	
-	def self.descend
+	## go down 1 directory
+	def descend
 		Directory.filter = nil
 		unless @path.size == 1
 			enter_dir(@buffer=='H' ? '..' : @path[-2].path)
@@ -617,6 +610,16 @@ module Fm
 		@memory["`"] = @memory["'"] = @pwd.path
 	end
 
+	SORT_KEYS = {
+		'n' => :name,
+		'e' => :ext,
+		't' => :type,
+		's' => :size,
+		'm' => :mtime,
+		'c' => :ctime
+	}
+
+	SORT_REGEXP = /^S (?i: ( [#{ SORT_KEYS.keys * '|' }] )) $/x
 
 	def self.recalculate_key_combinations
 		@@key_combinations = nil