src/clipboard.c

   1 /*
   2    Util for external clipboard.
   3
   4    Copyright (C) 2009, 2011
   5    The Free Software Foundation, Inc.
   6
   7    Written by:
   8    Ilia Maslakov <il.smind@gmail.com>, 2010.
   9
  10    This file is part of the Midnight Commander.
  11
  12    The Midnight Commander is free software: you can redistribute it
  13    and/or modify it under the terms of the GNU General Public License as
  14    published by the Free Software Foundation, either version 3 of the License,
  15    or (at your option) any later version.
  16
  17    The Midnight Commander is distributed in the hope that it will be useful,
  18    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20    GNU General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  24  */
  25
  26 #include <config.h>
  27
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30
  31 #include "lib/global.h"
  32 #include "lib/fileloc.h"
  33 #include "lib/mcconfig.h"
  34 #include "lib/util.h"
  35 #include "lib/event.h"
  36
  37 #include "lib/vfs/vfs.h"
  38
  39 #include "main.h"
  40 #include "src/execute.h"
  41
  42 #include "clipboard.h"
  43
  44 /*** global variables ****************************************************************************/
  45
  46 /* path to X clipboard utility */
  47 char *clipboard_store_path = NULL;
  48 char *clipboard_paste_path = NULL;
  49
  50 /*** file scope macro definitions ****************************************************************/
  51
  52 /*** file scope type declarations ****************************************************************/
  53
  54 /*** file scope variables ************************************************************************/
  55
  56 /*** file scope functions ************************************************************************/
  57 /* --------------------------------------------------------------------------------------------- */
  58
  59 /* --------------------------------------------------------------------------------------------- */
  60 /*** public functions ****************************************************************************/
  61 /* --------------------------------------------------------------------------------------------- */
  62
  63 /* event callback */
  64 gboolean
  65 clipboard_file_to_ext_clip (const gchar * event_group_name, const gchar * event_name,
  66                             gpointer init_data, gpointer data)
  67 {
  68     char *tmp, *cmd;
  69     int res = 0;
  70     const char *d = getenv ("DISPLAY");
  71
  72     (void) event_group_name;
  73     (void) event_name;
  74     (void) init_data;
  75     (void) data;
  76
  77     if (d == NULL || clipboard_store_path == NULL || clipboard_store_path[0] == '\0')
  78         return TRUE;
  79
  80     tmp = mc_config_get_full_path (EDIT_CLIP_FILE);
  81     cmd = g_strconcat (clipboard_store_path, " ", tmp, " 2>/dev/null", (char *) NULL);
  82
  83     if (cmd != NULL)
  84         res = my_system (EXECUTE_AS_SHELL, shell, cmd);
  85
  86     g_free (cmd);
  87     g_free (tmp);
  88     return TRUE;
  89 }
  90
  91 /* --------------------------------------------------------------------------------------------- */
  92
  93 /* event callback */
  94 gboolean
  95 clipboard_file_from_ext_clip (const gchar * event_group_name, const gchar * event_name,
  96                               gpointer init_data, gpointer data)
  97 {
  98     char *tmp, *cmd;
  99     int res = 0;
 100     const char *d = getenv ("DISPLAY");
 101
 102     (void) event_group_name;
 103     (void) event_name;
 104     (void) init_data;
 105     (void) data;
 106
 107     if (d == NULL || clipboard_paste_path == NULL || clipboard_paste_path[0] == '\0')
 108         return TRUE;
 109
 110     tmp = mc_config_get_full_path (EDIT_CLIP_FILE);
 111     cmd = g_strconcat (clipboard_paste_path, " > ", tmp, " 2>/dev/null", (char *) NULL);
 112
 113     if (cmd != NULL)
 114         res = my_system (EXECUTE_AS_SHELL, shell, cmd);
 115
 116     g_free (cmd);
 117     g_free (tmp);
 118     return TRUE;
 119 }
 120
 121 /* --------------------------------------------------------------------------------------------- */
 122
 123 /* event callback */
 124 gboolean
 125 clipboard_text_to_file (const gchar * event_group_name, const gchar * event_name,
 126                         gpointer init_data, gpointer data)
 127 {
 128     int file;
 129     char *fname = NULL;
 130     ssize_t ret;
 131     size_t str_len;
 132     const char *text = (const char *) data;
 133
 134     (void) event_group_name;
 135     (void) event_name;
 136     (void) init_data;
 137
 138     if (text == NULL)
 139         return FALSE;
 140
 141     fname = mc_config_get_full_path (EDIT_CLIP_FILE);
 142     file = mc_open (fname, O_CREAT | O_WRONLY | O_TRUNC,
 143                     S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH | O_BINARY);
 144     g_free (fname);
 145
 146     if (file == -1)
 147         return TRUE;
 148
 149     str_len = strlen (text);
 150     ret = mc_write (file, (char *) text, str_len);
 151     mc_close (file);
 152     return TRUE;
 153 }
 154
 155 /* --------------------------------------------------------------------------------------------- */
 156
 157 /* event callback */
 158 gboolean
 159 clipboard_text_from_file (const gchar * event_group_name, const gchar * event_name,
 160                           gpointer init_data, gpointer data)
 161 {
 162     char buf[BUF_LARGE];
 163     FILE *f;
 164     char *fname = NULL;
 165     gboolean first = TRUE;
 166     ev_clipboard_text_from_file_t *event_data = (ev_clipboard_text_from_file_t *) data;
 167
 168     (void) event_group_name;
 169     (void) event_name;
 170     (void) init_data;
 171
 172     fname = mc_config_get_full_path (EDIT_CLIP_FILE);
 173     f = fopen (fname, "r");
 174     g_free (fname);
 175
 176     if (f == NULL)
 177     {
 178         event_data->ret = FALSE;
 179         return TRUE;
 180     }
 181
 182     *(event_data->text) = NULL;
 183
 184     while (fgets (buf, sizeof (buf), f))
 185     {
 186         size_t len;
 187
 188         len = strlen (buf);
 189         if (len > 0)
 190         {
 191             if (buf[len - 1] == '\n')
 192                 buf[len - 1] = '\0';
 193
 194             if (first)
 195             {
 196                 first = FALSE;
 197                 *(event_data->text) = g_strdup (buf);
 198             }
 199             else
 200             {
 201                 /* remove \n on EOL */
 202                 char *tmp;
 203
 204                 tmp = g_strconcat (*(event_data->text), " ", buf, (char *) NULL);
 205                 g_free (*(event_data->text));
 206                 *(event_data->text) = tmp;
 207             }
 208         }
 209     }
 210
 211     fclose (f);
 212     event_data->ret = (*(event_data->text) != NULL);
 213     return TRUE;
 214 }
 215
 216 /* --------------------------------------------------------------------------------------------- */