Limit the maximum size of buffer to 4096 characters (fixes NB#94485)

[modest] / src / hildon2 / modest-msg-edit-window.c

diff --git a/src/hildon2/modest-msg-edit-window.c b/src/hildon2/modest-msg-edit-window.c
index 8571461..d635d45 100644 (file)
--- a/src/hildon2/modest-msg-edit-window.c
+++ b/src/hildon2/modest-msg-edit-window.c
@@ -93,6 +93,7 @@
 #define DEFAULT_FONT_SCALE 1.5
 #define ATTACHMENT_BUTTON_WIDTH 118
 #define MAX_FROM_VALUE 48
+#define MAX_BODY_LENGTH 4096
 
 static gboolean is_wp_text_buffer_started = FALSE;
 
@@ -111,6 +112,11 @@ static void  text_buffer_apply_tag (GtkTextBuffer *buffer, GtkTextTag *tag,
                                    GtkTextIter *start, GtkTextIter *end,
                                    gpointer userdata);
 static void  text_buffer_delete_images_by_id (GtkTextBuffer *buffer, const gchar * image_id);
+static void  body_insert_text (GtkTextBuffer *buffer, 
+                                     GtkTextIter *location,
+                                     gchar *text,
+                                     gint len,
+                                     ModestMsgEditWindow *window);
 static void  subject_field_changed (GtkEditable *editable, ModestMsgEditWindow *window);
 static void  subject_field_insert_text (GtkEditable *editable, 
                                        gchar *new_text,
@@ -713,6 +719,8 @@ connect_signals (ModestMsgEditWindow *obj)
                          G_CALLBACK (text_buffer_can_redo), obj);
        g_signal_connect (G_OBJECT (priv->text_buffer), "changed",
                           G_CALLBACK (body_changed), obj);
+       g_signal_connect (G_OBJECT (priv->text_buffer), "insert-text", 
+                         G_CALLBACK (body_insert_text), obj);
        g_signal_connect (G_OBJECT (priv->text_buffer), "modified-changed",
                           G_CALLBACK (body_changed), obj);
        g_signal_connect (G_OBJECT (priv->text_buffer), "end-user-action",
@@ -3494,6 +3502,43 @@ update_window_title (ModestMsgEditWindow *window)
 
 }
 
+
+static void  
+body_insert_text (GtkTextBuffer *buffer, 
+                 GtkTextIter *location,
+                 gchar *text,
+                 gint len,
+                 ModestMsgEditWindow *window)
+{
+       GtkTextIter end_iter;
+       gint offset;
+
+       gtk_text_buffer_get_end_iter (GTK_TEXT_BUFFER (buffer), &end_iter);
+
+       offset = gtk_text_iter_get_offset (&end_iter);
+
+       if (offset + len > MAX_BODY_LENGTH) {
+               g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
+               if (offset < MAX_BODY_LENGTH)
+               {
+                       gchar *result;
+
+                       /* Prevent endless recursion */
+                       result = g_strndup (text, MAX_BODY_LENGTH - offset);
+                       g_signal_handlers_block_by_func (G_OBJECT (buffer), G_CALLBACK (body_insert_text), window);
+                       g_signal_emit_by_name (G_OBJECT (buffer), "insert-text", location,
+                                              (gpointer) result, (gpointer) MAX_BODY_LENGTH - offset,
+                                              (gpointer) window);
+                       g_signal_handlers_unblock_by_func (G_OBJECT (buffer), G_CALLBACK (body_insert_text), window);
+               }
+
+       }
+       if (offset + len > MAX_BODY_LENGTH) {
+               hildon_banner_show_information (GTK_WIDGET (window), NULL, 
+                                               _CS("ckdg_ib_maximum_characters_reached"));
+       }
+}
+
 static void  
 subject_field_changed (GtkEditable *editable, 
                       ModestMsgEditWindow *window)
@@ -3504,7 +3549,6 @@ subject_field_changed (GtkEditable *editable,
        modest_ui_actions_check_toolbar_dimming_rules (MODEST_WINDOW (window));
        modest_ui_actions_check_menu_dimming_rules (MODEST_WINDOW (window));
 }
-
 static void  
 subject_field_insert_text (GtkEditable *editable, 
                           gchar *new_text,