Use events for operate with clipboard (copy/paste to external clipboard, save/load to file)

Signed-off-by: Slava Zanko <slavazanko@gmail.com>

lib/event-types.h

@@ -34,6 +34,13 @@ typedef struct
     va_list ap;
 } ev_vfs_print_message_t;
 
+/* MCEVENT_GROUP_CORE:clipboard_text_from_file */
+typedef struct
+{
+    char **text;
+    gboolean ret;
+} ev_clipboard_text_from_file_t;
+
 
 /*** global variables defined in .c file *********************************************************/
 

lib/widget/input.c

@@ -42,19 +42,18 @@
 #include "lib/tty/tty.h"
 #include "lib/tty/mouse.h"
 #include "lib/tty/key.h"        /* XCTRL and ALT macros  */
-#include "lib/vfs/vfs.h"
 #include "lib/fileloc.h"
 #include "lib/skin.h"
 #include "lib/strutil.h"
 #include "lib/util.h"
 #include "lib/keybind.h"        /* global_keymap_t */
 #include "lib/widget.h"
+#include "lib/event.h"          /* mc_event_raise() */
 
 #include "input_complete.h"
 
 #include "src/main.h"           /* home_dir */
 #include "src/filemanager/midnight.h"   /* current_panel */
-#include "src/clipboard.h"      /* copy_file_to_ext_clip, paste_to_file_from_ext_clip */
 
 /*** global variables ****************************************************************************/
 
@@ -85,124 +84,6 @@ const global_keymap_t *input_map;
 static char *kill_buffer = NULL;
 
 /*** file scope functions ************************************************************************/
-
-static gboolean
-save_text_to_clip_file (const char *text)
-{
-    int file;
-    char *fname = NULL;
-    ssize_t ret;
-    size_t str_len;
-
-    fname = g_build_filename (mc_config_get_cache_path (), EDIT_CLIP_FILE, NULL);
-    file = mc_open (fname, O_CREAT | O_WRONLY | O_TRUNC,
-                    S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH | O_BINARY);
-    g_free (fname);
-
-    if (file == -1)
-        return FALSE;
-
-    str_len = strlen (text);
-    ret = mc_write (file, (char *) text, str_len);
-    mc_close (file);
-    return ret == (ssize_t) str_len;
-}
-
-/* --------------------------------------------------------------------------------------------- */
-
-static gboolean
-load_text_from_clip_file (char **text)
-{
-    char buf[BUF_LARGE];
-    FILE *f;
-    char *fname = NULL;
-    gboolean first = TRUE;
-
-    fname = g_build_filename (mc_config_get_cache_path (), EDIT_CLIP_FILE, NULL);
-    f = fopen (fname, "r");
-    g_free (fname);
-
-    if (f == NULL)
-        return FALSE;
-
-    *text = NULL;
-
-    while (fgets (buf, sizeof (buf), f))
-    {
-        size_t len;
-
-        len = strlen (buf);
-        if (len > 0)
-        {
-            if (buf[len - 1] == '\n')
-                buf[len - 1] = '\0';
-
-            if (first)
-            {
-                first = FALSE;
-                *text = g_strdup (buf);
-            }
-            else
-            {
-                /* remove \n on EOL */
-                char *tmp;
-
-                tmp = g_strconcat (*text, " ", buf, (char *) NULL);
-                g_free (*text);
-                *text = tmp;
-            }
-        }
-    }
-
-    fclose (f);
-
-    return (*text != NULL);
-}
-
-/* --------------------------------------------------------------------------------------------- */
-
-static gboolean
-panel_save_curent_file_to_clip_file (void)
-{
-    gboolean res = FALSE;
-
-    if (current_panel->marked == 0)
-        res = save_text_to_clip_file (selection (current_panel)->fname);
-    else
-    {
-        int i;
-        gboolean first = TRUE;
-        char *flist = NULL;
-
-        for (i = 0; i < current_panel->count; i++)
-            if (current_panel->dir.list[i].f.marked != 0)
-            {                   /* Skip the unmarked ones */
-                if (first)
-                {
-                    flist = g_strdup (current_panel->dir.list[i].fname);
-                    first = FALSE;
-                }
-                else
-                {
-                    /* Add empty lines after the file */
-                    char *tmp;
-
-                    tmp =
-                        g_strconcat (flist, "\n", current_panel->dir.list[i].fname, (char *) NULL);
-                    g_free (flist);
-                    flist = tmp;
-                }
-            }
-
-        if (flist != NULL)
-        {
-            res = save_text_to_clip_file (flist);
-            g_free (flist);
-        }
-    }
-    return res;
-}
-
 /* --------------------------------------------------------------------------------------------- */
 
 static void
@@ -571,9 +452,9 @@ copy_region (WInput * in, int x_first, int x_last)
     if (last == first)
     {
         /* Copy selected files to clipboard */
-        panel_save_curent_file_to_clip_file ();
+        mc_event_raise (MCEVENT_GROUP_FILEMANAGER, "panel_save_curent_file_to_clip_file", NULL);
         /* try use external clipboard utility */
-        copy_file_to_ext_clip ();
+        mc_event_raise (MCEVENT_GROUP_CORE, "clipboard_file_to_ext_clip", NULL);
         return;
     }
 
@@ -584,9 +465,9 @@ copy_region (WInput * in, int x_first, int x_last)
 
     kill_buffer = g_strndup (in->buffer + first, last - first);
 
-    save_text_to_clip_file (kill_buffer);
+    mc_event_raise (MCEVENT_GROUP_CORE, "clipboard_text_to_file", kill_buffer);
     /* try use external clipboard utility */
-    copy_file_to_ext_clip ();
+    mc_event_raise (MCEVENT_GROUP_CORE, "clipboard_file_to_ext_clip", NULL);
 }
 
 /* --------------------------------------------------------------------------------------------- */
@@ -669,11 +550,15 @@ static void
 ins_from_clip (WInput * in)
 {
     char *p = NULL;
+    ev_clipboard_text_from_file_t event_data;
 
     /* try use external clipboard utility */
-    paste_to_file_from_ext_clip ();
+    mc_event_raise (MCEVENT_GROUP_CORE, "clipboard_file_from_ext_clip", NULL);
 
-    if (load_text_from_clip_file (&p))
+
+    event_data.text = &p;
+    mc_event_raise (MCEVENT_GROUP_CORE, "clipboard_text_from_file", &event_data);
+    if (event_data.ret)
     {
         char *pp;
 

src/clipboard.c

@@ -33,6 +33,9 @@
 #include "lib/fileloc.h"
 #include "lib/mcconfig.h"
 #include "lib/util.h"
+#include "lib/event.h"
+
+#include "lib/vfs/vfs.h"
 
 #include "main.h"
 #include "src/execute.h"
@@ -58,15 +61,22 @@ char *clipboard_paste_path = NULL;
 /*** public functions ****************************************************************************/
 /* --------------------------------------------------------------------------------------------- */
 
+/* event callback */
 gboolean
-copy_file_to_ext_clip (void)
+clipboard_file_to_ext_clip (const gchar * event_group_name, const gchar * event_name,
+                            gpointer init_data, gpointer data)
 {
     char *tmp, *cmd;
     int res = 0;
     const char *d = getenv ("DISPLAY");
 
+    (void) event_group_name;
+    (void) event_name;
+    (void) init_data;
+    (void) data;
+
     if (d == NULL || clipboard_store_path == NULL || clipboard_store_path[0] == '\0')
-        return FALSE;
+        return TRUE;
 
     tmp = concat_dir_and_file (mc_config_get_cache_path (), EDIT_CLIP_FILE);
     cmd = g_strconcat (clipboard_store_path, " ", tmp, " 2>/dev/null", (char *) NULL);
@@ -81,15 +91,22 @@ copy_file_to_ext_clip (void)
 
 /* --------------------------------------------------------------------------------------------- */
 
+/* event callback */
 gboolean
-paste_to_file_from_ext_clip (void)
+clipboard_file_from_ext_clip (const gchar * event_group_name, const gchar * event_name,
+                              gpointer init_data, gpointer data)
 {
     char *tmp, *cmd;
     int res = 0;
     const char *d = getenv ("DISPLAY");
 
+    (void) event_group_name;
+    (void) event_name;
+    (void) init_data;
+    (void) data;
+
     if (d == NULL || clipboard_paste_path == NULL || clipboard_paste_path[0] == '\0')
-        return FALSE;
+        return TRUE;
 
     tmp = concat_dir_and_file (mc_config_get_cache_path (), EDIT_CLIP_FILE);
     cmd = g_strconcat (clipboard_paste_path, " > ", tmp, " 2>/dev/null", (char *) NULL);
@@ -103,3 +120,98 @@ paste_to_file_from_ext_clip (void)
 }
 
 /* --------------------------------------------------------------------------------------------- */
+
+/* event callback */
+gboolean
+clipboard_text_to_file (const gchar * event_group_name, const gchar * event_name,
+                        gpointer init_data, gpointer data)
+{
+    int file;
+    char *fname = NULL;
+    ssize_t ret;
+    size_t str_len;
+    const char *text = (const char *) data;
+
+    (void) event_group_name;
+    (void) event_name;
+    (void) init_data;
+
+    if (text == NULL)
+        return FALSE;
+
+    fname = g_build_filename (mc_config_get_cache_path (), EDIT_CLIP_FILE, NULL);
+    file = mc_open (fname, O_CREAT | O_WRONLY | O_TRUNC,
+                    S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH | O_BINARY);
+    g_free (fname);
+
+    if (file == -1)
+        return TRUE;
+
+    str_len = strlen (text);
+    ret = mc_write (file, (char *) text, str_len);
+    mc_close (file);
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+/* event callback */
+gboolean
+clipboard_text_from_file (const gchar * event_group_name, const gchar * event_name,
+                          gpointer init_data, gpointer data)
+{
+    char buf[BUF_LARGE];
+    FILE *f;
+    char *fname = NULL;
+    gboolean first = TRUE;
+    ev_clipboard_text_from_file_t *event_data = (ev_clipboard_text_from_file_t *) data;
+
+    (void) event_group_name;
+    (void) event_name;
+    (void) init_data;
+
+    fname = g_build_filename (mc_config_get_cache_path (), EDIT_CLIP_FILE, NULL);
+    f = fopen (fname, "r");
+    g_free (fname);
+
+    if (f == NULL)
+    {
+        event_data->ret = FALSE;
+        return TRUE;
+    }
+
+    *(event_data->text) = NULL;
+
+    while (fgets (buf, sizeof (buf), f))
+    {
+        size_t len;
+
+        len = strlen (buf);
+        if (len > 0)
+        {
+            if (buf[len - 1] == '\n')
+                buf[len - 1] = '\0';
+
+            if (first)
+            {
+                first = FALSE;
+                *(event_data->text) = g_strdup (buf);
+            }
+            else
+            {
+                /* remove \n on EOL */
+                char *tmp;
+
+                tmp = g_strconcat (*(event_data->text), " ", buf, (char *) NULL);
+                g_free (*(event_data->text));
+                *(event_data->text) = tmp;
+            }
+        }
+    }
+
+    fclose (f);
+    event_data->ret = (*(event_data->text) != NULL);
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */

src/clipboard.h

@@ -18,8 +18,15 @@ extern char *clipboard_paste_path;
 
 /*** declarations of public functions ************************************************************/
 
-gboolean copy_file_to_ext_clip (void);
+gboolean clipboard_file_to_ext_clip (const gchar * event_group_name, const gchar * event_name,
-gboolean paste_to_file_from_ext_clip (void);
+                                     gpointer init_data, gpointer data);
+gboolean clipboard_file_from_ext_clip (const gchar * event_group_name, const gchar * event_name,
+                                       gpointer init_data, gpointer data);
+
+gboolean clipboard_text_to_file (const gchar * event_group_name, const gchar * event_name,
+                                 gpointer init_data, gpointer data);
+gboolean clipboard_text_from_file (const gchar * event_group_name, const gchar * event_name,
+                                   gpointer init_data, gpointer data);
 
 /*** inline functions ****************************************************************************/
 

src/editor/editcmd.c

@@ -56,13 +56,13 @@
 #include "lib/vfs/vfs.h"
 #include "lib/widget.h"
 #include "lib/charsets.h"
+#include "lib/event.h"          /* mc_event_raise() */
 
 #include "src/history.h"
 #include "src/setup.h"          /* option_tab_spacing */
 #include "src/help.h"           /* interactive_display() */
 #include "src/selcodepage.h"
 #include "src/keybind-defaults.h"
-#include "src/clipboard.h"      /* copy_file_to_ext_clip, paste_to_file_from_ext_clip */
 #include "src/util.h"           /* check_for_default() */
 #include "src/filemanager/layout.h"     /* mc_refresh()  */
 
@@ -2602,7 +2602,7 @@ edit_copy_to_X_buf_cmd (WEdit * edit)
         return 1;
     }
     /* try use external clipboard utility */
-    copy_file_to_ext_clip ();
+    mc_event_raise (MCEVENT_GROUP_CORE, "clipboard_file_to_ext_clip", NULL);
 
     return 0;
 }
@@ -2621,7 +2621,7 @@ edit_cut_to_X_buf_cmd (WEdit * edit)
         return 1;
     }
     /* try use external clipboard utility */
-    copy_file_to_ext_clip ();
+    mc_event_raise (MCEVENT_GROUP_CORE, "clipboard_file_to_ext_clip", NULL);
 
     edit_block_delete_cmd (edit);
     edit_mark_cmd (edit, 1);
@@ -2635,7 +2635,7 @@ edit_paste_from_X_buf_cmd (WEdit * edit)
 {
     gchar *tmp;
     /* try use external clipboard utility */
-    paste_to_file_from_ext_clip ();
+    mc_event_raise (MCEVENT_GROUP_CORE, "clipboard_file_from_ext_clip", NULL);
     tmp = concat_dir_and_file (mc_config_get_cache_path (), EDIT_CLIP_FILE);
     edit_insert_file (edit, tmp);
     g_free (tmp);

src/events_init.c

@@ -27,6 +27,8 @@
 
 #include "lib/event.h"
 
+#include "clipboard.h"          /* clipboard events */
+
 #include "events_init.h"
 
 /*** global variables ****************************************************************************/
@@ -51,6 +53,11 @@ events_init (GError ** error)
     /* *INDENT-OFF* */
     event_init_t standard_events[] =
     {
+        {MCEVENT_GROUP_CORE, "clipboard_file_to_ext_clip", clipboard_file_to_ext_clip, NULL},
+        {MCEVENT_GROUP_CORE, "clipboard_file_from_ext_clip", clipboard_file_from_ext_clip, NULL},
+        {MCEVENT_GROUP_CORE, "clipboard_text_to_file", clipboard_text_to_file, NULL},
+        {MCEVENT_GROUP_CORE, "clipboard_text_from_file", clipboard_text_from_file, NULL},
+
         {NULL, NULL, NULL, NULL}
     };
     /* *INDENT-ON* */

src/filemanager/panel.c

@@ -3425,6 +3425,53 @@ event_update_panels (const gchar * event_group_name, const gchar * event_name,
     return TRUE;
 }
 
+/* --------------------------------------------------------------------------------------------- */
+
+/* event callback */
+static gboolean
+panel_save_curent_file_to_clip_file (const gchar * event_group_name, const gchar * event_name,
+                                     gpointer init_data, gpointer data)
+{
+    (void) event_group_name;
+    (void) event_name;
+    (void) init_data;
+    (void) data;
+
+    if (current_panel->marked == 0)
+        mc_event_raise (MCEVENT_GROUP_CORE, "clipboard_text_to_file",
+                        (gpointer) selection (current_panel)->fname);
+    else
+    {
+        int i;
+        gboolean first = TRUE;
+        char *flist = NULL;
+
+        for (i = 0; i < current_panel->count; i++)
+            if (current_panel->dir.list[i].f.marked != 0)
+            {                   /* Skip the unmarked ones */
+                if (first)
+                {
+                    flist = g_strdup (current_panel->dir.list[i].fname);
+                    first = FALSE;
+                }
+                else
+                {
+                    /* Add empty lines after the file */
+                    char *tmp;
+
+                    tmp =
+                        g_strconcat (flist, "\n", current_panel->dir.list[i].fname, (char *) NULL);
+                    g_free (flist);
+                    flist = tmp;
+                }
+            }
+
+        mc_event_raise (MCEVENT_GROUP_CORE, "clipboard_text_to_file", (gpointer) flist);
+        g_free (flist);
+    }
+    return TRUE;
+}
+
 /* --------------------------------------------------------------------------------------------- */
 /*** public functions ****************************************************************************/
 /* --------------------------------------------------------------------------------------------- */
@@ -4124,6 +4171,8 @@ panel_init (void)
     panel_history_show_list_sign = mc_skin_get ("widget-panel", "history-show-list-sign", "^");
 
     mc_event_add (MCEVENT_GROUP_FILEMANAGER, "update_panels", event_update_panels, NULL, NULL);
+    mc_event_add (MCEVENT_GROUP_FILEMANAGER, "panel_save_curent_file_to_clip_file",
+                  panel_save_curent_file_to_clip_file, NULL, NULL);
 
 }