From d92d4d2767585e1956f2ce616ed795f2b1af3cc3 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Sun, 31 Mar 2019 13:53:42 +0200
Subject: Saving hooks

---
 libstorycode/narrative.c | 52 ++++++++++++++++++++++++++++++++++++++++++++----
 src/colloquium.c         |  4 ++--
 src/narrative_window.c   | 32 +++++++++++++++++++++++++----
 src/narrative_window.h   |  3 ++-
 4 files changed, 80 insertions(+), 11 deletions(-)

diff --git a/libstorycode/narrative.c b/libstorycode/narrative.c
index 19797e3..287e181 100644
--- a/libstorycode/narrative.c
+++ b/libstorycode/narrative.c
@@ -31,6 +31,9 @@
 #include <stdio.h>
 #include <gio/gio.h>
 
+#include <libintl.h>
+#define _(x) gettext(x)
+
 #ifdef HAVE_PANGO
 #include <pango/pango.h>
 #endif
@@ -54,7 +57,7 @@ Narrative *narrative_new()
 	n->n_items = 0;
 	n->items = NULL;
 	n->stylesheet = NULL;
-	n->imagestore = NULL;
+	n->imagestore = imagestore_new("."); /* FIXME: From app config */
 	n->saved = 1;
 #ifdef HAVE_PANGO
 	n->language = pango_language_to_string(pango_language_get_default());
@@ -107,16 +110,57 @@ Narrative *narrative_load(GFile *file)
 	g_bytes_unref(bytes);
 	if ( n == NULL ) return NULL;
 
-	n->imagestore = imagestore_new("."); /* FIXME: From app config */
 	imagestore_set_parent(n->imagestore, g_file_get_parent(file));
 	return n;
 }
 
 
+static int write_narrative(GOutputStream *fh, Narrative *n)
+{
+	int i;
+
+	for ( i=0; i<n->n_items; i++ ) {
+
+		gssize r;
+		GError *error = NULL;
+		char *a = "Hello";
+
+		r = g_output_stream_write(fh, a, strlen(a), NULL, &error);
+		if ( r == -1 ) {
+			fprintf(stderr, "Write failed: %s\n", error->message);
+			return 1;
+		}
+	}
+	return 0;
+}
+
+
 int narrative_save(Narrative *n, GFile *file)
 {
-	/* FIXME: Implementation */
-	return 1;
+	GFileOutputStream *fh;
+	int r;
+	GError *error = NULL;
+
+	if ( file == NULL ) {
+		fprintf(stderr, "Saving to NULL!\n");
+		return 1;
+	}
+
+	fh = g_file_replace(file, NULL, FALSE, G_FILE_CREATE_NONE, NULL, &error);
+	if ( fh == NULL ) {
+		fprintf(stderr, _("Open failed: %s\n"), error->message);
+		return 1;
+	}
+	r = write_narrative(G_OUTPUT_STREAM(fh), n);
+	if ( r ) {
+		fprintf(stderr, _("Couldn't save presentation\n"));
+	}
+	g_object_unref(fh);
+
+	imagestore_set_parent(n->imagestore, g_file_get_parent(file));
+
+	n->saved = 1;
+	return 0;
 }
 
 
diff --git a/src/colloquium.c b/src/colloquium.c
index 65647ad..d3ada61 100644
--- a/src/colloquium.c
+++ b/src/colloquium.c
@@ -67,7 +67,7 @@ static void colloquium_activate(GApplication *papp)
 		ss = stylesheet_new();
 		narrative_add_text(n, strdup(""));
 		narrative_add_stylesheet(n, ss);
-		narrative_window_new(n, papp);
+		narrative_window_new(n, NULL, papp);
 	}
 }
 
@@ -231,7 +231,7 @@ static void colloquium_open(GApplication  *papp, GFile **files, gint n_files,
 		Narrative *n;
 		n = narrative_load(files[i]);
 		if ( n != NULL ) {
-			narrative_window_new(n, papp);
+			narrative_window_new(n, files[i], papp);
 		} else {
 			char *uri = g_file_get_uri(files[i]);
 			fprintf(stderr, _("Failed to load presentation '%s'\n"),
diff --git a/src/narrative_window.c b/src/narrative_window.c
index 772c886..2df2c1e 100644
--- a/src/narrative_window.c
+++ b/src/narrative_window.c
@@ -80,12 +80,24 @@ static void show_error(NarrativeWindow *nw, const char *err)
 }
 
 
+static char *get_titlebar_string(NarrativeWindow *nw)
+{
+	if ( nw == NULL || nw->file == NULL ) {
+		return strdup(_("(untitled)"));
+	} else {
+		char *bn = g_file_get_basename(nw->file);
+		return bn;
+	}
+}
+
+
+
 static void update_titlebar(NarrativeWindow *nw)
 {
 	char *title;
 	char *title_new;
 
-	title = strdup("test"); // FIXME get_titlebar_string(nw->p);
+	title = get_titlebar_string(nw);
 	title_new = realloc(title, strlen(title)+16);
 	if ( title_new == NULL ) {
 		free(title);
@@ -139,9 +151,15 @@ static gint saveas_response_sig(GtkWidget *d, gint response,
 
 		if ( narrative_save(nw->n, file) ) {
 			show_error(nw, _("Failed to save presentation"));
+		} else {
+			update_titlebar(nw);
 		}
 
-		/* save_narrative keeps a reference to both of these */
+		if ( nw->file != file ) {
+			if ( nw->file != NULL ) g_object_unref(nw->file);
+			nw->file = file;
+			g_object_ref(nw->file);
+		}
 		g_object_unref(file);
 
 	}
@@ -190,7 +208,11 @@ static void save_sig(GSimpleAction *action, GVariant *parameter, gpointer vp)
 		return saveas_sig(NULL, NULL, nw);
 	}
 
-	narrative_save(nw->n, nw->file);
+	if ( narrative_save(nw->n, nw->file) ) {
+		show_error(nw, _("Failed to save presentation"));
+	} else {
+		update_titlebar(nw);
+	}
 }
 
 
@@ -688,7 +710,7 @@ GActionEntry nw_entries[] = {
 //}
 
 
-NarrativeWindow *narrative_window_new(Narrative *n, GApplication *papp)
+NarrativeWindow *narrative_window_new(Narrative *n, GFile *file, GApplication *papp)
 {
 	NarrativeWindow *nw;
 	GtkWidget *vbox;
@@ -704,6 +726,8 @@ NarrativeWindow *narrative_window_new(Narrative *n, GApplication *papp)
 	nw->app = papp;
 	nw->n = n;
 	nw->n_slidewindows = 0;
+	nw->file = file;
+	g_object_ref(file);
 
 	nw->window = gtk_application_window_new(GTK_APPLICATION(app));
 	update_titlebar(nw);
diff --git a/src/narrative_window.h b/src/narrative_window.h
index a2c769c..5a7646d 100644
--- a/src/narrative_window.h
+++ b/src/narrative_window.h
@@ -29,6 +29,7 @@
 
 typedef struct _narrative_window NarrativeWindow;
 
-extern NarrativeWindow *narrative_window_new(Narrative *n, GApplication *app);
+extern NarrativeWindow *narrative_window_new(Narrative *n, GFile *file,
+                                             GApplication *papp);
 
 #endif	/* NARRATIVE_WINDOW_H */
-- 
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