add alt+ta switcher

.gitignore

@@ -1,3 +1,4 @@
 battery-widget
 keyboard-layout-indicator
 revelation
+awesome-switcher

install-deps.sh

@@ -1,4 +1,5 @@
 git clone https://github.com/deficient/battery-widget.git
 git clone https://github.com/deficient/keyboard-layout-indicator.git
 git clone https://github.com/guotsuan/awesome-revelation revelation
+git clone https://github.com/berlam/awesome-switcher.git awesome-switcher
 sudo apt-get install acpid

rc.lua

@@ -22,6 +22,24 @@ local revelation=require("revelation")
 local debian = require("debian.menu")
 local has_fdo, freedesktop = pcall(require, "freedesktop")
 
+local switcher = require("awesome-switcher")
+
+    switcher.settings.preview_box = true                                 -- display preview-box
+    switcher.settings.preview_box_bg = "#ddddddaa"                       -- background color
+    switcher.settings.preview_box_border = "#22222200"                   -- border-color
+    switcher.settings.preview_box_fps = 30                               -- refresh framerate
+    switcher.settings.preview_box_delay = 150                            -- delay in ms
+    switcher.settings.preview_box_title_font = {"sans","italic","normal"}-- the font for cairo
+    switcher.settings.preview_box_title_font_size_factor = 0.8           -- the font sizing factor
+    switcher.settings.preview_box_title_color = {0,0,0,1}                -- the font color
+
+    switcher.settings.client_opacity = false                             -- opacity for unselected clients
+    switcher.settings.client_opacity_value = 0.5                         -- alpha-value for any client
+    switcher.settings.client_opacity_value_in_focus = 0.5                -- alpha-value for the client currently in focus
+    switcher.settings.client_opacity_value_selected = 1                  -- alpha-value for the selected client
+
+    switcher.settings.cycle_raise_client = true                          -- raise clients on cycle
+
 local KEY_ALT = "Mod1"
 
 local tag1 = "1:idea"
@@ -351,6 +369,15 @@ root.buttons(gears.table.join(
 -- {{{ Key bindings
 -- mod + s = show help
 globalkeys = gears.table.join(
+  awful.key({ "Mod1",           }, "Tab",
+      function ()
+          switcher.switch( 1, "Mod1", "Alt_L", "Shift", "Tab")
+      end),
+    
+    awful.key({ "Mod1", "Shift"   }, "Tab",
+      function ()
+          switcher.switch(-1, "Mod1", "Alt_L", "Shift", "Tab")
+      end),
     -- mod + e -> custom widget revelation
     awful.key({ modkey,           }, "e",      revelation),
     awful.key({ modkey,           }, "s",      hotkeys_popup.show_help,