mpv: add notify script

1 files changed, 122 insertions, 0 deletions

diff --git a/.config/mpv/scripts/notify.lua b/.config/mpv/scripts/notify.lua
new file mode 100644
index 0000000..183d153
--- /dev/null
+++ b/.config/mpv/scripts/notify.lua
@@ -0,0 +1,122 @@
+-- notify.lua -- Desktop notifications for mpv.
+-- Just put this file into your ~/.mpv/lua folder and mpv will find it.
+--
+-- Copyright (c) 2014 Roland Hieber
+--
+-- Permission is hereby granted, free of charge, to any person obtaining a copy
+-- of this software and associated documentation files (the "Software"), to deal
+-- in the Software without restriction, including without limitation the rights
+-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+-- copies of the Software, and to permit persons to whom the Software is
+-- furnished to do so, subject to the following conditions:
+--
+-- The above copyright notice and this permission notice shall be included in
+-- all copies or substantial portions of the Software.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+-- SOFTWARE.
+
+-------------------------------------------------------------------------------
+-- helper functions
+-------------------------------------------------------------------------------
+
+function print_debug(s)
+	-- print("DEBUG: " .. s) -- comment out for no debug info
+	return true
+end
+
+-- url-escape a string, per RFC 2396, Section 2
+function string.urlescape(str)
+	local s, c = string.gsub(str, "([^A-Za-z0-9_.!~*'()/-])",
+		function(c)
+			return ("%%%02x"):format(c:byte())
+		end)
+	return s;
+end
+
+-- escape string for html
+function string.htmlescape(str)
+	local str = string.gsub(str, "<", "&lt;")
+	str = string.gsub(str, ">", "&gt;")
+	str = string.gsub(str, "&", "&amp;")
+	str = string.gsub(str, "\"", "&quot;")
+	str = string.gsub(str, "'", "&apos;")
+	return str
+end
+
+-- escape string for shell inclusion
+function string.shellescape(str)
+	return "'"..string.gsub(str, "'", "'\"'\"'").."'"
+end
+
+-- converts string to a valid filename on most (modern) filesystems
+function string.safe_filename(str)
+	local s, _ = string.gsub(str, "([^A-Za-z0-9_.-])",
+		function(c)
+			return ("%02x"):format(c:byte())
+		end)
+	return s;
+end
+
+function notify_current_track()
+	local data = mp.get_property_native("metadata")
+	if not data then
+		return
+	end
+
+	function get_metadata(data, keys)
+		for _,v in pairs(keys) do
+			if data[v] and string.len(data[v]) > 0 then
+				return data[v]
+			end
+		end
+		return ""
+	end
+	-- srsly MPV, why do we have to do this? :-(
+	local artist = get_metadata(data, {"artist", "ARTIST"})
+	local album = get_metadata(data, {"album", "ALBUM"})
+	local title = get_metadata(data, {"title", "TITLE", "icy-title"})
+
+	print_debug("notify_current_track: relevant metadata:")
+	print_debug("artist: " .. artist)
+	print_debug("album: " .. album)
+
+	local summary = ""
+	local body = ""
+	local params = ""
+
+	if(artist == "") then
+		summary = string.shellescape("Now playing:")
+	else
+		summary = string.shellescape(string.htmlescape(artist))
+	end
+	if title == "" then
+		body = string.shellescape(mp.get_property_native("filename"))
+	else
+		if album == "" then
+			body = string.shellescape(string.htmlescape(title))
+		else
+			body = string.shellescape(("%s<br /><i>%s</i>"):format(
+				string.htmlescape(title), string.htmlescape(album)))
+		end
+	end
+
+	local command = ("notify-send -a mpv %s -- %s %s"):format(params, summary, body)
+	print_debug("command: " .. command)
+	os.execute(command)
+end
+
+function notify_metadata_updated(name, data)
+	notify_current_track()
+end
+
+
+-- insert main() here
+
+mp.register_event("file-loaded", notify_current_track)
+mp.observe_property("metadata", nil, notify_metadata_updated)