diff options
Diffstat (limited to 'plugins/trailsave/pluma-trail-save-plugin.c')
| -rw-r--r-- | plugins/trailsave/pluma-trail-save-plugin.c | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/plugins/trailsave/pluma-trail-save-plugin.c b/plugins/trailsave/pluma-trail-save-plugin.c new file mode 100644 index 00000000..dbc1621b --- /dev/null +++ b/plugins/trailsave/pluma-trail-save-plugin.c @@ -0,0 +1,214 @@ +/* + * pluma-trail-save-plugin.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. + * + * $Id$ + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "pluma-trail-save-plugin.h" + +PLUMA_PLUGIN_REGISTER_TYPE(PlumaTrailSavePlugin, pluma_trail_save_plugin) + +static void +strip_trailing_spaces (GtkTextBuffer *text_buffer) +{ + gint line_count, line_num; + GtkTextIter line_start, line_end; + gchar *slice; + gchar byte; + gint byte_index; + gint strip_start_index, strip_end_index; + gboolean should_strip; + GtkTextIter strip_start, strip_end; + + g_assert (text_buffer != NULL); + + line_count = gtk_text_buffer_get_line_count (text_buffer); + + for (line_num = 0; line_num < line_count; ++line_num) + { + /* Get line text */ + gtk_text_buffer_get_iter_at_line (text_buffer, &line_start, line_num); + + if (line_num == line_count - 1) + { + gtk_text_buffer_get_end_iter (text_buffer, &line_end); + } + else + { + gtk_text_buffer_get_iter_at_line (text_buffer, &line_end, line_num + 1); + } + + slice = gtk_text_buffer_get_slice (text_buffer, &line_start, &line_end, TRUE); + + if (slice == NULL) + { + continue; + } + + /* Find indices of bytes that should be stripped */ + should_strip = FALSE; + + for (byte_index = 0; slice [byte_index] != 0; ++byte_index) + { + byte = slice [byte_index]; + + if ((byte == ' ') || (byte == '\t')) + { + if (!should_strip) + { + strip_start_index = byte_index; + should_strip = TRUE; + } + + strip_end_index = byte_index + 1; + } + else if ((byte == '\r') || (byte == '\n')) + { + break; + } + else + { + should_strip = FALSE; + } + } + + g_free (slice); + + /* Strip trailing spaces */ + if (should_strip) + { + gtk_text_buffer_get_iter_at_line_index (text_buffer, &strip_start, line_num, strip_start_index); + gtk_text_buffer_get_iter_at_line_index (text_buffer, &strip_end, line_num, strip_end_index); + gtk_text_buffer_delete (text_buffer, &strip_start, &strip_end); + } + } +} + +static void +on_save (PlumaDocument *document, + const gchar *uri, + PlumaEncoding *encoding, + PlumaDocumentSaveFlags save_flags, + PlumaPlugin *plugin) +{ + GtkTextBuffer *text_buffer = GTK_TEXT_BUFFER (document); + + strip_trailing_spaces (text_buffer); +} + +static void +on_tab_added (PlumaWindow *window, + PlumaTab *tab, + PlumaPlugin *plugin) +{ + PlumaDocument *document; + + document = pluma_tab_get_document (tab); + g_signal_connect (document, "save", G_CALLBACK (on_save), plugin); +} + +static void +on_tab_removed (PlumaWindow *window, + PlumaTab *tab, + PlumaPlugin *plugin) +{ + PlumaDocument *document; + + document = pluma_tab_get_document (tab); + g_signal_handlers_disconnect_by_data (document, plugin); +} + +static void +impl_activate (PlumaPlugin *plugin, + PlumaWindow *window) +{ + GList *documents; + GList *documents_iter; + PlumaDocument *document; + + pluma_debug (DEBUG_PLUGINS); + + g_signal_connect (window, "tab_added", G_CALLBACK (on_tab_added), plugin); + g_signal_connect (window, "tab_removed", G_CALLBACK (on_tab_removed), plugin); + + documents = pluma_window_get_documents (window); + + for (documents_iter = documents; + documents_iter && documents_iter->data; + documents_iter = documents_iter->next) + { + document = (PlumaDocument *) documents_iter->data; + g_signal_connect (document, "save", G_CALLBACK (on_save), plugin); + } + + g_list_free (documents); +} + +static void +impl_deactivate (PlumaPlugin *plugin, + PlumaWindow *window) +{ + GList *documents; + GList *documents_iter; + PlumaDocument *document; + + pluma_debug (DEBUG_PLUGINS); + + g_signal_handlers_disconnect_by_data (window, plugin); + + documents = pluma_window_get_documents (window); + + for (documents_iter = documents; + documents_iter && documents_iter->data; + documents_iter = documents_iter->next) + { + document = (PlumaDocument *) documents_iter->data; + g_signal_handlers_disconnect_by_data (document, plugin); + } + + g_list_free (documents); +} + +static void +pluma_trail_save_plugin_init (PlumaTrailSavePlugin *plugin) +{ + pluma_debug_message (DEBUG_PLUGINS, "PlumaTrailSavePlugin initializing"); +} + +static void +pluma_trail_save_plugin_finalize (GObject *object) +{ + pluma_debug_message (DEBUG_PLUGINS, "PlumaTrailSavePlugin finalizing"); + + G_OBJECT_CLASS (pluma_trail_save_plugin_parent_class)->finalize (object); +} + +static void +pluma_trail_save_plugin_class_init (PlumaTrailSavePluginClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + PlumaPluginClass *plugin_class = PLUMA_PLUGIN_CLASS (klass); + + object_class->finalize = pluma_trail_save_plugin_finalize; + + plugin_class->activate = impl_activate; + plugin_class->deactivate = impl_deactivate; +} |