Merge pull request #256 from wimstefan/master

[etc/awesome.git] / util / init.lua

diff --git a/util/init.lua b/util/init.lua
index a44d52c6527ec3acb4a97873253ff46bdcaca581..9a6d18275ca18e9dd2d6892f5de6dcd83e1e42e4 100644 (file)
--- a/util/init.lua
+++ b/util/init.lua
@@ -1,15 +1,15 @@
 
 --[[
-                                                  
-     Lain                                         
-     Layouts, widgets and utilities for Awesome WM
-                                                  
-     Utilities section                            
-                                                  
-     Licensed under GNU General Public License v2 
-      * (c) 2013,      Luke Bonham                
-      * (c) 2010-2012, Peter Hofmann              
-                                                  
+                                                   
+     Lain                                          
+     Layouts, widgets and utilities for Awesome WM 
+                                                   
+     Utilities section                             
+                                                   
+     Licensed under GNU General Public License v2  
+      * (c) 2013,      Luke Bonham                 
+      * (c) 2010-2012, Peter Hofmann               
+                                                   
 --]]
 
 local awful        = require("awful")
@@ -17,7 +17,7 @@ local beautiful    = require("beautiful")
 local math         = { sqrt = math.sqrt }
 local mouse        = mouse
 local pairs        = pairs
-local string       = string
+local string       = { gsub = string.gsub }
 local client       = client
 local screen       = screen
 local tonumber     = tonumber
@@ -38,10 +38,7 @@ function util.menu_clients_current_tags(menu, args)
     -- Final list of menu items.
     local cls_t = {}
 
-    if cls_tags == nil
-    then
-        return nil
-    end
+    if cls_tags == nil then return nil end
 
     -- For each selected tag get all clients of that tag and add them to
     -- the menu. A click on a menu item will raise that client.
@@ -63,17 +60,11 @@ function util.menu_clients_current_tags(menu, args)
     end
 
     -- No clients? Then quit.
-    if #cls_t <= 0
-    then
-        return nil
-    end
+    if #cls_t <= 0 then return nil end
 
     -- menu may contain some predefined values, otherwise start with a
     -- fresh menu.
-    if not menu
-    then
-        menu = {}
-    end
+    if not menu then menu = {} end
 
     -- Set the list of items and show the menu.
     menu.items = cls_t
@@ -83,9 +74,22 @@ function util.menu_clients_current_tags(menu, args)
 end
 
 -- Magnify a client: Set it to "float" and resize it.
+local magnified_client = nil
 function util.magnify_client(c)
-    awful.client.floating.set(c, true)
+    if c and not awful.client.floating.get(c) then
+        util.mc(c)
+        magnified_client = c
+    else
+        awful.client.floating.set(c, false)
+        magnified_client = nil
+    end
+end
 
+-- https://github.com/copycat-killer/lain/issues/195
+function util.mc(c)
+    c = c or magnified_client
+    if not c then return end
+    awful.client.floating.set(c, true)
     local mg = screen[mouse.screen].geometry
     local tag = awful.tag.selected(mouse.screen)
     local mwfact = awful.tag.getmwfact(tag)
@@ -94,17 +98,13 @@ function util.magnify_client(c)
     g.height = math.sqrt(mwfact) * mg.height
     g.x = mg.x + (mg.width - g.width) / 2
     g.y = mg.y + (mg.height - g.height) / 2
-    c:geometry(g)
+    if c then c:geometry(g) end -- if c is still a valid object
 end
 
 -- Read the nice value of pid from /proc.
 local function get_nice_value(pid)
     local n = first_line('/proc/' .. pid .. '/stat')
-    if n == nil
-    then
-        -- This should not happen. But I don't want to crash, either.
-        return 0
-    end
+    if not n then return 0 end
 
     -- Remove pid and tcomm. This is necessary because tcomm may contain
     -- nasty stuff such as whitespace or additional parentheses...
@@ -151,7 +151,7 @@ function util.tag_view_nonempty(direction, sc)
    local s = sc or mouse.screen or 1
    local scr = screen[s]
 
-   for i = 1, #tags[s] do
+   for i = 1, #awful.tag.gettags(s) do
        awful.tag.viewidx(direction,s)
        if #awful.client.visible(s) > 0 then
            return
@@ -159,16 +159,70 @@ function util.tag_view_nonempty(direction, sc)
    end
 end
 
--- Dynamically rename the current tag you have focused.
-function util.prompt_rename_tag(mypromptbox)
+-- {{{ Dynamic tagging
+--
+-- Add a new tag
+function util.add_tag()
+    awful.prompt.run {
+        prompt       = "New tag name: ",
+        textbox      = awful.screen.focused().mypromptbox.widget,
+        exe_callback = function(name)
+            if not name or #name == 0 then return end
+            awful.tag.add(name, { screen = awful.screen.focused() }):view_only()
+        end
+    }
+end
+
+-- Rename current tag
+function util.rename_tag()
+    awful.prompt.run {
+        prompt       = "Rename tag: ",
+        textbox      = awful.screen.focused().mypromptbox.widget,
+        exe_callback = function(new_name)
+            if not new_name or #new_name == 0 then return end
+            local t = awful.screen.focused().selected_tag
+            if t then
+                t.name = new_name
+            end
+        end
+    }
+end
+
+-- Move current tag
+-- pos in {-1, 1} <-> {previous, next} tag position
+function util.move_tag(pos)
     local tag = awful.tag.selected(mouse.screen)
-    awful.prompt.run({prompt="Rename tag: "}, mypromptbox[mouse.screen].widget,
-    function(text)
-        if text:len() > 0 then
-            tag.name = text
-            tag:emit_signal("property::name")
+    local idx = awful.tag.getidx(tag)
+    if tonumber(pos) <= -1 then
+        awful.tag.move(idx - 1, tag)
+    else
+        awful.tag.move(idx + 1, tag)
+    end
+end
+
+-- Delete current tag
+-- Any rule set on the tag shall be broken
+function util.delete_tag()
+    local t = awful.screen.focused().selected_tag
+    if not t then return end
+    t:delete()
+end
+-- }}}
+
+-- On the fly useless gaps change
+function util.useless_gaps_resize(thatmuch)
+    beautiful.useless_gap = tonumber(beautiful.useless_gap) + thatmuch
+    awful.layout.arrange(mouse.screen)
+end
+
+-- Check if an element exist on a table
+function util.element_in_table(element, tbl)
+    for _, i in pairs(tbl) do
+        if i == element then
+            return true
         end
-    end)
+    end
+    return false
 end
 
 return setmetatable(util, { __index = wrequire })