1 files changed, 103 insertions, 0 deletions
diff --git a/saedit/file.c b/saedit/file.c
new file mode 100644
index 0000000..5496c86
--- /dev/null
+++ b/saedit/file.c
@@ -0,0 +1,103 @@
+#include <gtksourceview/gtksource.h>
+#include "errors.h"
+#include "buffer.h"
+#include "main.h"
+#include "file.h"
+
+#include <string.h>
+
+
+gchar *opened_file_name = NULL;
+
+gboolean
+show_unsaved_changes_dialog () {
+	gint result;
+	GtkWidget *dialog;
+
+	if (!buffer_get_modified ()) {
+		return FALSE;
+	}
+	
+	dialog = gtk_message_dialog_new (
+		GTK_WINDOW (main_window),
+		GTK_DIALOG_MODAL,
+		GTK_MESSAGE_WARNING,
+		GTK_BUTTONS_YES_NO,
+		"There are unsaved changes in the current file. "
+		"Do you wish to proceed?"
+	);
+
+	result = gtk_dialog_run (GTK_DIALOG (dialog));
+	gtk_widget_destroy (dialog);
+
+	return result == GTK_RESPONSE_NO;
+}
+
+void
+open_file (
+	const gchar *filename
+) {
+	gsize len;
+	gchar *text;
+
+	if (show_unsaved_changes_dialog ())
+		return;
+
+	release_context ();
+
+	if (filename != NULL) {
+		g_file_get_contents (
+			filename,
+			&text,
+			&len,
+			NULL
+		);
+	} else {
+		text = g_strdup ("");
+		len = 0;
+	}
+
+	g_free (opened_file_name);
+	opened_file_name = g_strdup (filename);
+
+	buffer_set_text (text, len);
+	buffer_set_modified (FALSE);
+
+	update_window_title ();
+
+	g_free (text);
+}
+
+void
+save_file (const gchar *filename) {
+	GError *error = NULL;
+	gboolean success;
+	gchar *text = buffer_get_text ();
+
+	success = g_file_set_contents (
+		filename == NULL ? opened_file_name : filename,
+		text,
+		strlen (text),
+		&error
+	);
+
+	if (!success) {
+		post_error ("Saving", error->message);
+	} else {
+		if (filename != NULL) {
+			g_free (opened_file_name);
+			opened_file_name = g_strdup (filename);
+		}
+
+		buffer_set_modified (FALSE);
+		update_window_title ();
+	}
+
+	g_free (text);
+}
+
+const gchar *
+get_opened_file_name () {
+	return opened_file_name;
+}
+