2014-01-20 22:36:20 +00:00
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/**
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* simpleswitcher
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*
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* MIT/X11 License
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* Copyright 2013-2014 Qball Cow <qball@gmpclient.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#define _GNU_SOURCE
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2014-01-20 23:20:09 +00:00
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#include <stdlib.h>
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#include <stdio.h>
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2014-01-20 22:36:20 +00:00
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#include <X11/X.h>
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#include <unistd.h>
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#include <signal.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <strings.h>
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#include <string.h>
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#include "simpleswitcher.h"
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#include "run-dialog.h"
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2014-01-20 23:20:09 +00:00
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#ifdef TIMING
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#include <time.h>
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#endif
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2014-01-20 22:36:20 +00:00
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extern char *config_terminal_emulator;
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static inline int execsh( const char *cmd ,int run_in_term )
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{
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// use sh for args parsing
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if ( run_in_term )
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return execlp( config_terminal_emulator, config_terminal_emulator, "-e", "sh", "-c", cmd, NULL );
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return execlp( "/bin/sh", "sh", "-c", cmd, NULL );
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}
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// execute sub-process
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static pid_t exec_cmd( const char *cmd, int run_in_term )
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{
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if ( !cmd || !cmd[0] ) return -1;
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signal( SIGCHLD, catch_exit );
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pid_t pid = fork();
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if ( !pid ) {
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setsid();
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execsh( cmd, run_in_term );
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exit( EXIT_FAILURE );
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}
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int curr = -1;
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unsigned int index = 0;
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char **retv = NULL;
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const char *hd = getenv( "HOME" );
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if ( hd == NULL ) return pid;
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/**
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* This happens in non-critical time (After launching app)
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* It is allowed to be a bit slower.
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*/
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char *path = allocate( strlen( hd ) + strlen( "/.simpleswitcher.cache" )+2 );
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sprintf( path, "%s/%s", hd, ".simpleswitcher.cache" );
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FILE *fd = fopen ( path, "r" );
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char buffer[1024];
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if ( fd != NULL ) {
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while ( fgets( buffer,1024,fd ) != NULL ) {
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retv = realloc( retv, ( index+2 )*sizeof( char* ) );
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buffer[strlen( buffer )-1] = '\0';
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retv[index] = strdup( buffer );
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retv[index+1] = NULL;
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if ( strcasecmp( retv[index], cmd ) == 0 ) {
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curr = index;
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}
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index++;
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}
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fclose( fd );
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}
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/**
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* Write out the last 25 results again.
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*/
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fd = fopen ( path, "w" );
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if ( fd ) {
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// Last one goes on top!
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fputs( cmd, fd );
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fputc( '\n', fd );
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for ( int i = 0; i < ( int )index && i < 20; i++ ) {
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if ( i != curr ) {
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fputs( retv[i], fd );
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fputc( '\n', fd );
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}
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}
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fclose( fd );
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}
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for ( int i=0; retv[i] != NULL; i++ ) {
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free( retv[i] );
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}
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free( retv );
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free( path );
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return pid;
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}
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2014-01-21 09:01:55 +00:00
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static int sort_func ( const void *a, const void *b )
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2014-01-20 22:36:20 +00:00
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{
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const char *astr = *( const char * const * )a;
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const char *bstr = *( const char * const * )b;
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return strcasecmp( astr,bstr );
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}
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static char ** get_apps ( )
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{
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int num_favorites = 0;
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unsigned int index = 0;
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char *path;
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char **retv = NULL;
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#ifdef TIMING
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struct timespec start, stop;
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clock_gettime( CLOCK_REALTIME, &start );
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#endif
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if ( getenv( "PATH" ) == NULL ) return NULL;
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const char *hd = getenv( "HOME" );
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if ( hd == NULL ) return NULL;
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path = allocate( strlen( hd ) + strlen( "/.simpleswitcher.cache" )+2 );
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sprintf( path, "%s/%s", hd, ".simpleswitcher.cache" );
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FILE *fd = fopen ( path, "r" );
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char buffer[1024];
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if ( fd != NULL ) {
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while ( fgets( buffer,1024,fd ) != NULL ) {
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retv = realloc( retv, ( index+2 )*sizeof( char* ) );
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buffer[strlen( buffer )-1] = '\0';
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retv[index] = strdup( buffer );
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retv[index+1] = NULL;
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index++;
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num_favorites++;
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}
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fclose( fd );
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}
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free( path );
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path = strdup( getenv( "PATH" ) );
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for ( const char *dirname = strtok( path, ":" ); dirname != NULL; dirname = strtok( NULL, ":" ) ) {
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DIR *dir = opendir( dirname );
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if ( dir != NULL ) {
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struct dirent *dent;
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while ( ( dent=readdir( dir ) )!=NULL ) {
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if ( dent->d_type != DT_REG &&
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dent->d_type != DT_LNK &&
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dent->d_type != DT_UNKNOWN ) {
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continue;
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}
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int found = 0;
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// This is a nice little penalty, but doable? time will tell.
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// given num_favorites is max 25.
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for ( int j = 0; found == 0 && j < num_favorites; j++ ) {
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if ( strcasecmp( dent->d_name, retv[j] ) == 0 ) found = 1;
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}
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if ( found == 1 ) continue;
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retv = realloc( retv, ( index+2 )*sizeof( char* ) );
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retv[index] = strdup( dent->d_name );
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retv[index+1] = NULL;
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index++;
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}
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closedir( dir );
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}
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}
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// TODO: check this is still fast enough. (takes 1ms on laptop.)
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qsort( &retv[num_favorites],index-num_favorites, sizeof( char* ), sort_func );
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free( path );
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#ifdef TIMING
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clock_gettime( CLOCK_REALTIME, &stop );
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if ( stop.tv_sec != start.tv_sec ) {
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stop.tv_nsec += ( stop.tv_sec-start.tv_sec )*1e9;
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}
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long diff = stop.tv_nsec-start.tv_nsec;
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printf( "Time elapsed: %ld us\n", diff/1000 );
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#endif
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return retv;
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}
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2014-01-21 09:01:55 +00:00
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static int token_match ( char **tokens, const char *input,
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2014-01-20 23:20:09 +00:00
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__attribute__( ( unused ) )int index,
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__attribute__( ( unused ) )void *data)
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{
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int match = 1;
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// Do a tokenized match.
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if ( tokens ) for ( int j = 1; match && tokens[j]; j++ ) {
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match = ( strcasestr( input, tokens[j] ) != NULL );
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}
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return match;
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}
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2014-01-20 22:36:20 +00:00
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SwitcherMode run_switcher_dialog ( char **input )
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{
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SwitcherMode retv = MODE_EXIT;
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// act as a launcher
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char **cmd_list = get_apps( );
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if ( cmd_list == NULL ) {
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cmd_list = allocate( 2*sizeof( char * ) );
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cmd_list[0] = strdup( "No applications found" );
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cmd_list[1] = NULL;
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}
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int shift=0;
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2014-01-20 23:20:09 +00:00
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int n = menu( cmd_list, input, "$ ", 0, NULL, &shift,token_match, NULL);
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2014-01-20 22:36:20 +00:00
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if ( n == -2 ) {
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2014-01-21 09:01:55 +00:00
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retv = SSH_DIALOG;
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2014-01-20 22:36:20 +00:00
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} else if ( n >=0 && cmd_list[n] != NULL ) {
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exec_cmd( cmd_list[n], shift );
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} else if ( n == -3 && *input != NULL && *input[0] != '\0' ) {
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exec_cmd( *input, shift );
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}
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for ( int i=0; cmd_list[i] != NULL; i++ ) {
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free( cmd_list[i] );
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}
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free( cmd_list );
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return retv;
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}
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