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	dwm-r1615-mpdcontrol.diff (5560B)
	---
	1 # HG changeset patch
	2 # Date 1353796988 -7200
	3 # User Barbu Paul - Gheorghe <[email protected]>
	4 # Parent 9cace08dcb7e57f76a2206bada6fc3b9557c63dc
	5 Control MPD via keybinds
	6
	7 diff -r 9cace08dcb7e Makefile
	8 --- a/Makefile Sun Nov 18 17:52:42 2012 +0100
	9 +++ b/Makefile Sun Nov 25 00:43:08 2012 +0200
	10 @@ -18,7 +18,7 @@
	11 @echo CC $<
	12 @${CC} -c ${CFLAGS} $<
	13
	14 -${OBJ}: config.h config.mk
	15 +${OBJ}: config.h config.mk mpdcontrol.c
	16
	17 config.h:
	18 @echo creating $@ from config.def.h
	19 diff -r 9cace08dcb7e config.def.h
	20 --- a/config.def.h Sun Nov 18 17:52:42 2012 +0100
	21 +++ b/config.def.h Sun Nov 25 00:43:08 2012 +0200
	22 @@ -53,6 +53,8 @@
	23 static const char *dmenucmd[] = { "dmenu_run", "-fn", font, "-nb", norm…
	24 static const char *termcmd[] = { "uxterm", NULL };
	25
	26 +#include "mpdcontrol.c"
	27 +
	28 static Key keys[] = {
	29 /* modifier key function argu…
	30 { MODKEY, XK_p, spawn, {.v …
	31 @@ -88,6 +90,9 @@
	32 TAGKEYS( XK_8, 7)
	33 TAGKEYS( XK_9, 8)
	34 { MODKEY\|ShiftMask, XK_q, quit, {0} …
	35 + { MODKEY, XK_F1, mpdchange, {.i …
	36 + { MODKEY, XK_F2, mpdchange, {.i …
	37 + { MODKEY, XK_Escape, mpdcontrol, {0} …
	38 };
	39
	40 /* button definitions */
	41 diff -r 9cace08dcb7e config.mk
	42 --- a/config.mk Sun Nov 18 17:52:42 2012 +0100
	43 +++ b/config.mk Sun Nov 25 00:43:08 2012 +0200
	44 @@ -16,7 +16,7 @@
	45
	46 # includes and libs
	47 INCS = -I${X11INC}
	48 -LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS}
	49 +LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} -lmpdclient
	50
	51 # flags
	52 CPPFLAGS = -D_BSD_SOURCE -D_POSIX_C_SOURCE=2 -DVERSION=\"${VERSION}\" $…
	53 diff -r 9cace08dcb7e mpdcontrol.c
	54 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
	55 +++ b/mpdcontrol.c Sun Nov 25 00:43:08 2012 +0200
	56 @@ -0,0 +1,140 @@
	57 +#include <stdlib.h>
	58 +#include <string.h>
	59 +#include <stdio.h>
	60 +#include <regex.h>
	61 +
	62 +#include <mpd/client.h>
	63 +
	64 +#define MPDHOST "localhost"
	65 +#define MPDPORT 6600
	66 +
	67 +struct mpd_connection *get_conn(){
	68 + struct mpd_connection *conn;
	69 +
	70 + conn = mpd_connection_new(MPDHOST, MPDPORT, 1000);
	71 +
	72 + if(mpd_connection_get_error(conn) != MPD_ERROR_SUCCESS){
	73 + fprintf(stderr, "Could not connect to mpd: %s\n", mpd_connectio…
	74 +
	75 + mpd_connection_free(conn);
	76 + return NULL;
	77 + }
	78 +
	79 + return conn;
	80 +}
	81 +
	82 +void mpdchange(const Arg *direction){
	83 + struct mpd_connection *conn;
	84 +
	85 + conn = get_conn();
	86 +
	87 + if(conn == NULL){
	88 + return;
	89 + }
	90 +
	91 + if(direction->i > 0){
	92 + mpd_run_next(conn);
	93 + }
	94 + else{
	95 + mpd_run_previous(conn);
	96 + }
	97 +
	98 + mpd_connection_free(conn);
	99 +}
	100 +
	101 +char get_regerror(int errcode, regex_t compiled){
	102 + size_t length = regerror(errcode, compiled, NULL, 0);
	103 + char *buffer = malloc(length);
	104 + (void) regerror(errcode, compiled, buffer, length);
	105 +
	106 + return buffer;
	107 +}
	108 +
	109 +void mpdcontrol(){
	110 + struct mpd_connection *conn;
	111 + struct mpd_status *status;
	112 + struct mpd_song *song;
	113 + enum mpd_state state;
	114 +
	115 + const char *filename;
	116 +
	117 + regex_t expr;
	118 +
	119 + conn = get_conn();
	120 +
	121 + if(conn == NULL){
	122 + return;
	123 + }
	124 +
	125 + status = mpd_run_status(conn);
	126 +
	127 + if(status == NULL){
	128 + fprintf(stderr, "Could not get mpd status: %s\n", mpd_status_ge…
	129 +
	130 + mpd_status_free(status);
	131 + mpd_connection_free(conn);
	132 + return;
	133 + }
	134 +
	135 + state = mpd_status_get_state(status);
	136 +
	137 + if(state == MPD_STATE_STOP \|\| state == MPD_STATE_PAUSE){
	138 + mpd_run_play(conn);
	139 + mpd_status_free(status);
	140 + mpd_connection_free(conn);
	141 + }
	142 + else if(state != MPD_STATE_UNKNOWN){ //playing some music
	143 + song = mpd_run_current_song(conn);
	144 +
	145 + if(song == NULL){
	146 + fprintf(stderr, "Error fetching current song!\n");
	147 +
	148 + mpd_song_free(song);
	149 + mpd_status_free(status);
	150 + mpd_connection_free(conn);
	151 + return;
	152 + }
	153 +
	154 + filename = mpd_song_get_uri(song);
	155 +
	156 + int errcode = regcomp(&expr, "^[[:alnum:]]+://", REG_EXTENDED\|R…
	157 + if(errcode != 0){
	158 + char *err = get_regerror(errcode, &expr);
	159 + fprintf(stderr, "Could not compile regexp: %s\n", err);
	160 +
	161 + mpd_song_free(song);
	162 + mpd_status_free(status);
	163 + mpd_connection_free(conn);
	164 + free(err);
	165 + regfree(&expr);
	166 + return;
	167 + }
	168 +
	169 + int matchcode = regexec(&expr, filename, 0, NULL, 0);
	170 +
	171 + if(matchcode == 0){
	172 + if(strstr(filename, "file://") == filename){ //match just a…
	173 + //this means that mpd is playing a file outside the mus…
	174 + //but on disk, so we can safely pause
	175 + mpd_run_toggle_pause(conn);
	176 + }
	177 + else{
	178 + mpd_run_stop(conn);
	179 + }
	180 + }
	181 + else if(matchcode == REG_NOMATCH){
	182 + mpd_run_toggle_pause(conn);
	183 + }
	184 + else{
	185 + char *err = get_regerror(matchcode, &expr);
	186 + fprintf(stderr, "Error while matching regexp: %s\n", err);
	187 +
	188 + free(err);
	189 + }
	190 +
	191 + regfree(&expr);
	192 + mpd_song_free(song);
	193 + mpd_status_free(status);
	194 + mpd_connection_free(conn);
	195 + }
	196 +}