Merge pull request #386 from shuber2/pactl-widget

pactl: A new volume widget using pactl only

1 files changed, 124 insertions, 0 deletions

diff --git a/pactl-widget/pactl.lua b/pactl-widget/pactl.lua
new file mode 100644
index 0000000..638dc7e
--- /dev/null
+++ b/pactl-widget/pactl.lua
@@ -0,0 +1,124 @@
+local spawn = require("awful.spawn")
+local utils = require("awesome-wm-widgets.pactl-widget.utils")
+
+local pactl = {}
+
+
+function pactl.volume_increase(device, step)
+    spawn('pactl set-sink-volume ' .. device .. ' +' .. step .. '%', false)
+end
+
+function pactl.volume_decrease(device, step)
+    spawn('pactl set-sink-volume ' .. device .. ' -' .. step .. '%', false)
+end
+
+function pactl.mute_toggle(device)
+    spawn('pactl set-sink-mute ' .. device .. ' toggle', false)
+end
+
+function pactl.get_volume(device)
+    local stdout = utils.popen_and_return('pactl get-sink-volume ' .. device)
+
+    local volsum, volcnt = 0, 0
+    for vol in string.gmatch(stdout, "(%d?%d?%d)%%") do
+        vol = tonumber(vol)
+        if vol ~= nil then
+            volsum = volsum + vol
+            volcnt = volcnt + 1
+        end
+    end
+
+    if volcnt == 0 then
+        return nil
+    end
+
+    return volsum / volcnt
+end
+
+function pactl.get_mute(device)
+    local stdout = utils.popen_and_return('pactl get-sink-mute ' .. device)
+    if string.find(stdout, "yes") then
+        return true
+    else
+        return false
+    end
+end
+
+function pactl.get_sinks_and_sources()
+    local default_sink = utils.trim(utils.popen_and_return('pactl get-default-sink'))
+    local default_source = utils.trim(utils.popen_and_return('pactl get-default-source'))
+
+    local sinks = {}
+    local sources = {}
+
+    local device
+    local ports
+    local key
+    local value
+    local in_section
+
+    for line in utils.popen_and_return('pactl list'):gmatch('[^\r\n]*') do
+
+        if string.match(line, '^%a+ #') then
+            in_section = nil
+        end
+
+        local is_sink_line = string.match(line, '^Sink #')
+        local is_source_line = string.match(line, '^Source #')
+
+        if is_sink_line or is_source_line then
+            in_section = "main"
+
+            device = {
+                id = line:match('#(%d+)'),
+                is_default = false
+            }
+            if is_sink_line then
+                table.insert(sinks, device)
+            else
+                table.insert(sources, device)
+            end
+        end
+
+        -- Found a new subsection
+        if in_section ~= nil and string.match(line, '^\t%a+:$') then
+            in_section = utils.trim(line):lower()
+            in_section = string.sub(in_section, 1, #in_section-1)
+
+            if in_section == 'ports' then
+                ports = {}
+                device['ports'] = ports
+            end
+        end
+
+        -- Found a key-value pair
+        if string.match(line, "^\t*[^\t]+: ") then
+            local t = utils.split(line, ':')
+            key = utils.trim(t[1]):lower():gsub(' ', '_')
+            value = utils.trim(t[2])
+        end
+
+        -- Key value pair on 1st level
+        if in_section ~= nil and string.match(line, "^\t[^\t]+: ") then
+            device[key] = value
+
+            if key == "name" and (value == default_sink or value == default_source) then
+                device['is_default'] = true
+            end
+        end
+
+        -- Key value pair in ports section
+        if in_section == "ports" and string.match(line, "^\t\t[^\t]+: ") then
+            ports[key] = value
+        end
+    end
+
+    return sinks, sources
+end
+
+function pactl.set_default(type, name)
+    spawn('pactl set-default-' .. type .. ' "' .. name .. '"', false)
+end
+
+
+return pactl