src/clipboard.c

   1 /*
   2    Util for external clipboard.
   3
   4    Copyright (C) 2009 The Free Software Foundation, Inc.
   5
   6    Written by:
   7    Ilia Maslakon <il.smind@gmail.com>, 2010.
   8
   9    This file is part of the Midnight Commander.
  10
  11    The Midnight Commander is free software; you can redistribute it
  12    and/or modify it under the terms of the GNU General Public License as
  13    published by the Free Software Foundation; either version 2 of the
  14    License, or (at your option) any later version.
  15
  16    The Midnight Commander is distributed in the hope that it will be
  17    useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  18    of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19    General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program; if not, write to the Free Software
  23    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  24    MA 02110-1301, USA.
  25  */
  26
  27 #include <config.h>
  28
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31
  32 #include "lib/global.h"
  33 #include "lib/fileloc.h"
  34 #include "lib/mcconfig.h"
  35 #include "lib/util.h"
  36 #include "lib/event.h"
  37
  38 #include "lib/vfs/vfs.h"
  39
  40 #include "main.h"
  41 #include "src/execute.h"
  42
  43 #include "clipboard.h"
  44
  45 /*** global variables ****************************************************************************/
  46
  47 /* path to X clipboard utility */
  48 char *clipboard_store_path = NULL;
  49 char *clipboard_paste_path = NULL;
  50
  51 /*** file scope macro definitions ****************************************************************/
  52
  53 /*** file scope type declarations ****************************************************************/
  54
  55 /*** file scope variables ************************************************************************/
  56
  57 /*** file scope functions ************************************************************************/
  58 /* --------------------------------------------------------------------------------------------- */
  59
  60 /* --------------------------------------------------------------------------------------------- */
  61 /*** public functions ****************************************************************************/
  62 /* --------------------------------------------------------------------------------------------- */
  63
  64 /* event callback */
  65 gboolean
  66 clipboard_file_to_ext_clip (const gchar * event_group_name, const gchar * event_name,
  67                             gpointer init_data, gpointer data)
  68 {
  69     char *tmp, *cmd;
  70     int res = 0;
  71     const char *d = getenv ("DISPLAY");
  72
  73     (void) event_group_name;
  74     (void) event_name;
  75     (void) init_data;
  76     (void) data;
  77
  78     if (d == NULL || clipboard_store_path == NULL || clipboard_store_path[0] == '\0')
  79         return TRUE;
  80
  81     tmp = concat_dir_and_file (mc_config_get_cache_path (), EDIT_CLIP_FILE);
  82     cmd = g_strconcat (clipboard_store_path, " ", tmp, " 2>/dev/null", (char *) NULL);
  83
  84     if (cmd != NULL)
  85         res = my_system (EXECUTE_AS_SHELL, shell, cmd);
  86
  87     g_free (cmd);
  88     g_free (tmp);
  89     return TRUE;
  90 }
  91
  92 /* --------------------------------------------------------------------------------------------- */
  93
  94 /* event callback */
  95 gboolean
  96 clipboard_file_from_ext_clip (const gchar * event_group_name, const gchar * event_name,
  97                               gpointer init_data, gpointer data)
  98 {
  99     char *tmp, *cmd;
 100     int res = 0;
 101     const char *d = getenv ("DISPLAY");
 102
 103     (void) event_group_name;
 104     (void) event_name;
 105     (void) init_data;
 106     (void) data;
 107
 108     if (d == NULL || clipboard_paste_path == NULL || clipboard_paste_path[0] == '\0')
 109         return TRUE;
 110
 111     tmp = concat_dir_and_file (mc_config_get_cache_path (), EDIT_CLIP_FILE);
 112     cmd = g_strconcat (clipboard_paste_path, " > ", tmp, " 2>/dev/null", (char *) NULL);
 113
 114     if (cmd != NULL)
 115         res = my_system (EXECUTE_AS_SHELL, shell, cmd);
 116
 117     g_free (cmd);
 118     g_free (tmp);
 119     return TRUE;
 120 }
 121
 122 /* --------------------------------------------------------------------------------------------- */
 123
 124 /* event callback */
 125 gboolean
 126 clipboard_text_to_file (const gchar * event_group_name, const gchar * event_name,
 127                         gpointer init_data, gpointer data)
 128 {
 129     int file;
 130     char *fname = NULL;
 131     ssize_t ret;
 132     size_t str_len;
 133     const char *text = (const char *) data;
 134
 135     (void) event_group_name;
 136     (void) event_name;
 137     (void) init_data;
 138
 139     if (text == NULL)
 140         return FALSE;
 141
 142     fname = g_build_filename (mc_config_get_cache_path (), EDIT_CLIP_FILE, NULL);
 143     file = mc_open (fname, O_CREAT | O_WRONLY | O_TRUNC,
 144                     S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH | O_BINARY);
 145     g_free (fname);
 146
 147     if (file == -1)
 148         return TRUE;
 149
 150     str_len = strlen (text);
 151     ret = mc_write (file, (char *) text, str_len);
 152     mc_close (file);
 153     return TRUE;
 154 }
 155
 156 /* --------------------------------------------------------------------------------------------- */
 157
 158 /* event callback */
 159 gboolean
 160 clipboard_text_from_file (const gchar * event_group_name, const gchar * event_name,
 161                           gpointer init_data, gpointer data)
 162 {
 163     char buf[BUF_LARGE];
 164     FILE *f;
 165     char *fname = NULL;
 166     gboolean first = TRUE;
 167     ev_clipboard_text_from_file_t *event_data = (ev_clipboard_text_from_file_t *) data;
 168
 169     (void) event_group_name;
 170     (void) event_name;
 171     (void) init_data;
 172
 173     fname = g_build_filename (mc_config_get_cache_path (), EDIT_CLIP_FILE, NULL);
 174     f = fopen (fname, "r");
 175     g_free (fname);
 176
 177     if (f == NULL)
 178     {
 179         event_data->ret = FALSE;
 180         return TRUE;
 181     }
 182
 183     *(event_data->text) = NULL;
 184
 185     while (fgets (buf, sizeof (buf), f))
 186     {
 187         size_t len;
 188
 189         len = strlen (buf);
 190         if (len > 0)
 191         {
 192             if (buf[len - 1] == '\n')
 193                 buf[len - 1] = '\0';
 194
 195             if (first)
 196             {
 197                 first = FALSE;
 198                 *(event_data->text) = g_strdup (buf);
 199             }
 200             else
 201             {
 202                 /* remove \n on EOL */
 203                 char *tmp;
 204
 205                 tmp = g_strconcat (*(event_data->text), " ", buf, (char *) NULL);
 206                 g_free (*(event_data->text));
 207                 *(event_data->text) = tmp;
 208             }
 209         }
 210     }
 211
 212     fclose (f);
 213     event_data->ret = (*(event_data->text) != NULL);
 214     return TRUE;
 215 }
 216
 217 /* --------------------------------------------------------------------------------------------- */