]> git.madduck.net Git - etc/awesome.git/blobdiff - widgets/base.lua

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

wiki updated
[etc/awesome.git] / widgets / base.lua
index 3d4ce9e41436c5f25da049ee5f9efa621c48b0aa..cd84e361220f79f2d24c98d3a1e5fe198437ddce 100644 (file)
@@ -7,16 +7,17 @@
 --]]
 
 local newtimer     = require("lain.helpers").newtimer
 --]]
 
 local newtimer     = require("lain.helpers").newtimer
+local read_pipe    = require("lain.helpers").read_pipe
+
 local wibox        = require("wibox")
 
 local wibox        = require("wibox")
 
-local io           = io
 local setmetatable = setmetatable
 
 local setmetatable = setmetatable
 
--- Basic template for custom widgets 
+-- Basic template for custom widgets
 -- lain.widgets.base
 -- lain.widgets.base
-local base = {}
 
 local function worker(args)
 
 local function worker(args)
+    local base     = {}
     local args     = args or {}
     local timeout  = args.timeout or 5
     local cmd      = args.cmd or ""
     local args     = args or {}
     local timeout  = args.timeout or 5
     local cmd      = args.cmd or ""
@@ -25,11 +26,12 @@ local function worker(args)
     base.widget = wibox.widget.textbox('')
 
     function base.update()
     base.widget = wibox.widget.textbox('')
 
     function base.update()
-        local f = assert(io.popen(cmd))
-        output = f:read("*all")
-        f:close()
-        widget = base.widget
-        settings()
+        output = read_pipe(cmd)
+        if output ~= base.prev then
+            widget = base.widget
+            settings()
+            base.prev = output
+        end
     end
 
     newtimer(cmd, timeout, base.update)
     end
 
     newtimer(cmd, timeout, base.update)
@@ -37,4 +39,4 @@ local function worker(args)
     return setmetatable(base, { __index = base.widget })
 end
 
     return setmetatable(base, { __index = base.widget })
 end
 
-return setmetatable(base, { __call = function(_, ...) return worker(...) end })
+return setmetatable({}, { __call = function(_, ...) return worker(...) end })