awesome/mpd_widget: request albumart when getting info

[dotfiles.git] / awesome / widgets / mpd_widget.lua

diff --git a/awesome/widgets/mpd_widget.lua b/awesome/widgets/mpd_widget.lua
index 692e9a2ba8969a6a21355b2bf541182ca3629b48..2c6ab78ec3ce8888db1fbe4393a54de3a588958e 100644 (file)
--- a/awesome/widgets/mpd_widget.lua
+++ b/awesome/widgets/mpd_widget.lua
@@ -1,48 +1,185 @@
-local mpc = require("widgets/mpc")
+local awful   = require("awful")
+local gears   = require("gears")
+local mpc     = require("widgets/mpc")
+local naughty = require("naughty")

 local textbox = require("wibox.widget.textbox")
 local textbox = require("wibox.widget.textbox")

-local timer = require("gears.timer")
+local timer   = require("gears.timer")
+local wibox   = require("wibox")

 
 

-mpd_widget = textbox()
+local widget = {}
+widget._textbox = textbox()
+widget._currentsong = {}

 
 

-local function update_widget()
+widget.scroll = wibox.widget {
+    layout = wibox.container.scroll.horizontal,
+    max_size = 200,
+    extra_space = 10,
+    step_function = wibox.container.scroll.step_functions.linear_increase,
+    speed = 20,
+    {
+        widget = widget._textbox,
+    }
+}
+
+function widget:update_widget()

     local text = ""
     local text = ""

-    if state == "pause" then
-        text = "|| "
+    local artist = self._currentsong.artist
+    local title = self._currentsong.title
+    local file = self._currentsong.file
+    if not artist then
+        text = string.format("%s", title or file )
+    else
+        text = string.format("%s - %s", artist, title)

     end
     end

-    text = text .. tostring(artist or "") .. " - " .. tostring(title or "")
-    mpd_widget.text = text
+    self._textbox.text = text

 end
 
 end
 

-local connection
-local function error_handler(err)
-    mpd_widget:set_text("Error: " .. tostring(err))
-    timer.start_new(10, function()
-        connection:send("ping")
+local function sec_to_min(sec)
+    m, s = math.modf((sec or 0.0) / 60)
+    return string.format('%d:%02d', m, math.floor(s * 60))
+end
+
+local function song_duration(elapsed, duration)
+    return sec_to_min(elapsed) .. "/" .. sec_to_min(duration)
+end
+
+function widget:get_info(callback)
+    local status = nil
+    self._connection:send("status", function(_, s) status = s end)
+
+    local song = nil
+
+    self._connection:send("currentsong", function(_, s)
+        song = s
+        self._connection:albumart(song.file, function(_, art)
+            local info = {}
+            if art and art.binary then
+                info.icon = '/tmp/test.jpg'
+                local f = io.open(info.icon, 'w')
+                f:write(art.binary)
+                f:close()
+            end
+
+            info.title = status.state .. " " .. status.song .. "/" .. status.playlistlength .. " " .. song_duration(status.elapsed, status.duration)
+            if not song.artist then
+                info.text = string.format("%s", song.title or song.file)
+            else
+                info.text = string.format("%s - %s", song.artist, song.title)
+            end
+            if song.album then
+                info.text = info.text .. "\n" .. tostring(song.album or "")
+            end
+            callback(info)
+        end)
+    end)
+end
+
+function widget:popup_show()
+    self:get_info(function(table)
+        if self._notification then return end
+        self._notification = naughty.notify(
+            { title = table.title
+            , icon = table.icon
+            , icon_size = 64
+            , text = table.text
+            , timeout = 0
+            , destroy = function() self._timer:stop(); self._notification = nil end
+            })
+        self._timer:start()

     end)
 end
 
     end)
 end
 

-connection = mpc.new(nil, nil, nil, error_handler,
-    "status", function(_, result)
-        state = result.state
-    end,
-    "currentsong", function(_, result)
-        title, artist, file = result.title, result.artist, result.file
-        pcall(update_widget)
+function widget:popup_hide(delay)
+    if self._hide_timer and self._hide_timer.started then
+        self._hide_timer:again()
+    else
+        self._hide_timer = timer(
+            { timeout = delay
+            , autostart = true
+            , single_shot = true
+            , callback = function()
+                if self._hover then return end
+                if not self._notification then return end
+                naughty.destroy(self._notification)
+                self._notification = nil
+                end
+            })

     end
     end

-)
+end
+
+function widget:popup_update()
+    self:get_info(function(table)
+        if not self._notification then return end
+        naughty.replace_text(self._notification, table.title, table.text)
+    end)
+end
+
+function widget:popup_oneshot(timeout)
+    if self._notification then
+        self:popup_update()
+        self:popup_hide(5)
+    else
+        self:popup_show()
+        self:popup_hide(5)
+    end
+end
+
+function widget:error_handler(err)
+    self._textbox:set_text("Error: " .. tostring(err))
+    timer.start_new(10, function()
+        self._connection:send("ping")
+    end)
+end
+
+function widget:run()
+    self._connection = mpc.new(nil, nil, nil, function(err) self:error_handler(err) end,
+        "status", function(_, result)
+            if not self._status or result.state ~= self._status.state then 
+                self._status = result
+                self:update_widget()
+                self:popup_oneshot(5)
+            end
+        end,
+        "currentsong", function(_, result)
+            if not self._currentsong or result.id ~= self._currentsong.id then 
+                self._currentsong = result
+                self:update_widget()
+                self:popup_oneshot(5)
+            end
+        end
+    )
+
+    self._timer = timer({ timeout = 1 })
+    self._timer:connect_signal("timeout", function() self:popup_update() end)
+
+    self._hover = false;
+    self.scroll:connect_signal("mouse::enter", function() self._hover = true;  self:popup_show()  end)
+    self.scroll:connect_signal("mouse::leave", function() self._hover = false; self:popup_hide(2) end)
+end
+
+widget:run()

 
 

-mpd_widget:buttons(gears.table.join(
-  awful.button({}, 1, function() connection:toggle_play() end)
-, awful.button({}, 4, function() connection:change_volume(5) end)
-, awful.button({}, 5, function() connection:change_volume(-5) end))
+widget.scroll:buttons(gears.table.join(
+  awful.button({}, 1, function() widget._connection:toggle_play() end)
+, awful.button({}, 4, function() widget._connection:change_volume(5) end)
+, awful.button({}, 5, function() widget._connection:change_volume(-5) end))

 )
 
 globalkeys = gears.table.join(globalkeys,
 )
 
 globalkeys = gears.table.join(globalkeys,

-    awful.key({ modkey }, "p", function() connection:toggle_play() end,
+    awful.key({ modkey }, "p", function() widget._connection:toggle_play() end,

               { description = "toogle play", group = "mpd" }),
               { description = "toogle play", group = "mpd" }),

-    awful.key({ modkey }, ",", function() connection:send("previous") end,
+    awful.key({ modkey }, "'", function() widget:popup_oneshot(5) end,
+              { description = "show more info", group = "mpd" }),
+    awful.key({ modkey }, ",", function() widget._connection:send("previous") end,

               { description = "previous track", group = "mpd" }),
               { description = "previous track", group = "mpd" }),

-    awful.key({ modkey }, ".", function() connection:send("next") end,
+    awful.key({ modkey }, ".", function() widget._connection:send("next") end,

               { description = "next track", group = "mpd" })
 )
               { description = "next track", group = "mpd" })
 )

-return mpd_widget
+return {
+    layout = wibox.layout.align.horizontal,
+    forced_width = 200,
+    expand = "outside",
+    nil,
+    widget.scroll,
+    nil,
+}