[evolution] Bug 750661 - Invalid cast from 'WebKitDOMHTMLElement' to 'WebKitDOMCharacterData'

[Tomas Popela <tpopela src gnome org>]

commit 9a6885f06668918fb07c33715fd3a64b5246f1e3
Author: Tomas Popela <tpopela redhat com>
Date:   Wed Jun 10 11:06:33 2015 +0200

    Bug 750661 - Invalid cast from 'WebKitDOMHTMLElement' to 'WebKitDOMCharacterData'
    
    When wrapping the line and processing tabulators, count with the possibility
    that we can overflow the maximal number of characters on line with the tabulator.
    
    Also fix one typo Applet->Apple.

 e-util/e-html-editor-selection.c |   32 ++++++++++++++++++++++++++------
 1 files changed, 26 insertions(+), 6 deletions(-)
---
diff --git a/e-util/e-html-editor-selection.c b/e-util/e-html-editor-selection.c
index 11bc2b4..2f58d6b 100644
--- a/e-util/e-html-editor-selection.c
+++ b/e-util/e-html-editor-selection.c
@@ -6256,14 +6256,34 @@ wrap_lines (EHTMLEditorSelection *selection,
                        }
 
                        if (element_has_class (WEBKIT_DOM_ELEMENT (node), "Apple-tab-span")) {
-                               WebKitDOMNode *prev_sibling;
+                               WebKitDOMNode *sibling;
+                               gint tab_length;
 
-                               prev_sibling = webkit_dom_node_get_previous_sibling (node);
-                               if (prev_sibling && WEBKIT_DOM_IS_ELEMENT (prev_sibling) &&
-                                   element_has_class (WEBKIT_DOM_ELEMENT (prev_sibling), "Applet-tab-span"))
-                                       line_length += TAB_LENGTH;
+                               sibling = webkit_dom_node_get_previous_sibling (node);
+                               if (sibling && WEBKIT_DOM_IS_ELEMENT (sibling) &&
+                                   element_has_class (WEBKIT_DOM_ELEMENT (sibling), "Apple-tab-span"))
+                                       tab_length = TAB_LENGTH;
                                else
-                                       line_length += TAB_LENGTH - line_length % TAB_LENGTH;
+                                       tab_length = TAB_LENGTH - line_length % TAB_LENGTH;
+
+                               if (line_length + tab_length > word_wrap_length) {
+                                       if (webkit_dom_node_get_next_sibling (node)) {
+                                               element = webkit_dom_document_create_element (
+                                                       document, "BR", NULL);
+                                               element_add_class (element, "-x-evo-wrap-br");
+                                               node = webkit_dom_node_insert_before (
+                                                       webkit_dom_node_get_parent_node (node),
+                                                       WEBKIT_DOM_NODE (element),
+                                                       webkit_dom_node_get_next_sibling (node),
+                                                       NULL);
+                                       }
+                                       line_length = 0;
+                               } else
+                                       line_length += tab_length;
+
+                               sibling = webkit_dom_node_get_next_sibling (node);
+                               node = sibling;
+                               continue;
                        }
                        /* When we are not removing user-entered BR elements (lines wrapped by user),
                         * we need to skip those elements */