From: Jose Dapena Paz <jdapena@igalia.com>
Date: Tue, 14 Apr 2009 16:57:00 +0000 (+0000)
Subject: Added methods to limit the size sent to gtkhtml stream
X-Git-Tag: git_migration_finished~81
X-Git-Url: http://git.maemo.org/git/?p=modest;a=commitdiff_plain;h=d40a430dac40ff506c3095b5f94eeec596969588

Added methods to limit the size sent to gtkhtml stream

pmo-trunk-r8792
---

diff --git a/src/widgets/modest-tny-stream-gtkhtml.c b/src/widgets/modest-tny-stream-gtkhtml.c
index d01fae2..c8ec30c 100644
--- a/src/widgets/modest-tny-stream-gtkhtml.c
+++ b/src/widgets/modest-tny-stream-gtkhtml.c
@@ -57,6 +57,9 @@ struct _ModestTnyStreamGtkhtmlPrivate {
 	GtkHTMLStream *stream;
 	GtkHTML *html;
 	guint stop_streams_id;
+
+	gssize max_size;
+	gssize current_size;
 };
 #define MODEST_TNY_STREAM_GTKHTML_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
                                                        MODEST_TYPE_TNY_STREAM_GTKHTML, \
@@ -123,6 +126,9 @@ modest_tny_stream_gtkhtml_init (ModestTnyStreamGtkhtml *obj)
 	priv->stream  = NULL;
 	priv->html = NULL;
 	priv->stop_streams_id = 0;
+
+	priv->max_size = 0;
+	priv->current_size = 0;
 }
 
 static void
@@ -160,6 +166,7 @@ modest_tny_stream_gtkhtml_new (GtkHTMLStream *stream, GtkHTML *html)
 
 	priv->stop_streams_id = g_signal_connect (G_OBJECT (html), "stop-streams",
 						  G_CALLBACK (stop_streams), obj);
+	priv->current_size = 0;
 
 	return obj;
 }
@@ -193,7 +200,20 @@ gtkhtml_write (TnyStream *self, const char *buffer, size_t n)
 	if (!priv->html || !GTK_WIDGET_VISIBLE (priv->html))
 		return -1;
 
+	if (priv->max_size > 0) {
+
+		/* We only use the maximum size for write method, and even we
+		 * ignore and fake as we would do a successfull read */
+		if (priv->current_size > priv->max_size)
+			return n;
+
+		if (priv->current_size + n > priv->max_size)
+			n = priv->max_size - priv->current_size;
+	}
+
 	gtk_html_stream_write (priv->stream, buffer, n);
+	priv->current_size += n;
+
 	return n; /* hmmm */
 }
 
@@ -270,6 +290,29 @@ stop_streams (ModestGtkhtmlMimePartView *view, gpointer userdata)
 	}
 }
 
+void 
+modest_tny_stream_gtkhtml_set_max_size (ModestTnyStreamGtkhtml *stream, 
+					gssize max_size)
+{
+	ModestTnyStreamGtkhtmlPrivate *priv;
+
+	g_return_if_fail (MODEST_IS_TNY_STREAM_GTKHTML (stream));
+	priv = MODEST_TNY_STREAM_GTKHTML_GET_PRIVATE (stream);
+
+	priv->max_size = max_size;
+}
+
+gssize 
+modest_tny_stream_gtkhtml_get_max_size (ModestTnyStreamGtkhtml *stream)
+{
+	ModestTnyStreamGtkhtmlPrivate *priv;
+
+	g_return_val_if_fail (MODEST_IS_TNY_STREAM_GTKHTML (stream), 0);
+	priv = MODEST_TNY_STREAM_GTKHTML_GET_PRIVATE (stream);
+
+	return priv->max_size;
+}
+
 static void
 modest_tny_stream_gtkhml_iface_init (gpointer g_iface, gpointer iface_data)
 {
diff --git a/src/widgets/modest-tny-stream-gtkhtml.h b/src/widgets/modest-tny-stream-gtkhtml.h
index 7bc15a5..e06d171 100644
--- a/src/widgets/modest-tny-stream-gtkhtml.h
+++ b/src/widgets/modest-tny-stream-gtkhtml.h
@@ -71,6 +71,24 @@ GType       modest_tny_stream_gtkhtml_get_type    (void) G_GNUC_CONST;
  **/
 GObject*    modest_tny_stream_gtkhtml_new         (GtkHTMLStream* stream, GtkHTML *html);
 
+/**
+ * modest_tny_stream_gtkhtml_set_max_size:
+ * @stream: a #ModestTnyStreamGtkhtml
+ * @max_size: a #gssize
+ *
+ * set @max_size as the maximum size @stream will process
+ */
+void modest_tny_stream_gtkhtml_set_max_size (ModestTnyStreamGtkhtml *stream, gssize max_size);
+
+/**
+ * modest_tny_stream_gtkhtml_get_max_size:
+ * @stream: a #ModestTnyStreamGtkhtml
+ *
+ * obtain the maximum size @stream will process
+ *
+ * Returns: a #gssize (or 0 if unlimited)
+ */
+gssize modest_tny_stream_gtkhtml_get_max_size (ModestTnyStreamGtkhtml *stream);
 
 G_END_DECLS