[evolution/wip/webkit-composer: 196/262] Bug #689782 - [webkit-composer] Cannot start new numbered list below other one

[Tomas Popela <tpopela src gnome org>]

commit 0be2609318c4f1856c50d102d1912bff46d1c886
Author: Tomas Popela <tpopela redhat com>
Date:   Fri Jun 14 14:08:58 2013 +0200

    Bug #689782 - [webkit-composer] Cannot start new numbered list below other one
    
    When inserting new ordered list under existing one it was continuing in previous
    one. This behavior was caused by changing the format of list but again to ordered
    list (numbered, alphabetical, roman numeral lists are treated as one in WebKit).
    So we have to insert these lists manually in composer through DOM modifications.

 e-util/e-editor-selection.c |   70 +++++++++++++++++++++++++++++++++++++++++--
 1 files changed, 67 insertions(+), 3 deletions(-)
---
diff --git a/e-util/e-editor-selection.c b/e-util/e-editor-selection.c
index 8ade0b2..63f1a76 100644
--- a/e-util/e-editor-selection.c
+++ b/e-util/e-editor-selection.c
@@ -1223,6 +1223,7 @@ e_editor_selection_set_block_format (EEditorSelection *selection,
        EEditorSelectionBlockFormat current_format;
        EEditorWidgetCommand command;
        const gchar *value;
+       gboolean inserting_ordered_list = FALSE;
 
        g_return_if_fail (E_IS_EDITOR_SELECTION (selection));
 
@@ -1275,8 +1276,7 @@ e_editor_selection_set_block_format (EEditorSelection *selection,
                case E_EDITOR_SELECTION_BLOCK_FORMAT_ORDERED_LIST:
                case E_EDITOR_SELECTION_BLOCK_FORMAT_ORDERED_LIST_ALPHA:
                case E_EDITOR_SELECTION_BLOCK_FORMAT_ORDERED_LIST_ROMAN:
-                       command = E_EDITOR_WIDGET_COMMAND_INSERT_ORDERED_LIST;
-                       value = NULL;
+                       inserting_ordered_list = TRUE;
                        break;
                case E_EDITOR_SELECTION_BLOCK_FORMAT_UNORDERED_LIST:
                        command = E_EDITOR_WIDGET_COMMAND_INSERT_UNORDERED_LIST;
@@ -1305,7 +1305,71 @@ e_editor_selection_set_block_format (EEditorSelection *selection,
                        E_EDITOR_WIDGET_COMMAND_INSERT_ORDERED_LIST, NULL);
        }
 
-       e_editor_widget_exec_command (editor_widget, command, value);
+       if (!inserting_ordered_list)
+               e_editor_widget_exec_command (editor_widget, command, value);
+       else {
+               /* Ordered list have to be handled separately (not directly in WebKit),
+                * because all variant or ordered list are treated as one in WebKit.
+                * When list is inserted after existing one, it is not inserted as new,
+                * but it will start to continuing in previous one */
+               WebKitDOMRange *range, *new_range;
+               WebKitDOMElement *element;
+               WebKitDOMNode *node;
+               WebKitWebView *web_view;
+               WebKitDOMDocument *document;
+               WebKitDOMDOMSelection *window_selection;
+               WebKitDOMDOMWindow *window;
+               WebKitDOMNodeList *list;
+               gint paragraph_count, ii;
+
+               web_view = WEBKIT_WEB_VIEW (editor_widget);
+               document = webkit_web_view_get_dom_document (web_view);
+
+               range = editor_selection_get_current_range (selection);
+
+               list = webkit_dom_document_get_elements_by_class_name (document, "-x-evo-paragraph");
+
+               paragraph_count = webkit_dom_node_list_get_length (list);
+               for (ii = paragraph_count - 1; ii >= 0; ii--) {
+               WebKitDOMNode *br = webkit_dom_node_list_item (list, ii);
+                       if (g_strcmp0 (webkit_dom_node_get_text_content (br), UNICODE_HIDDEN_SPACE) == 0) {
+                               webkit_dom_node_set_text_content (br, "", NULL);
+                       }
+               }
+
+               /* Create list elements */
+               element = webkit_dom_document_create_element (document, "OL", NULL);
+
+               /* We have to use again the hidden space to move caret into newly
+                * inserted list */
+               webkit_dom_html_element_set_inner_html (
+                       WEBKIT_DOM_HTML_ELEMENT (element),
+                       g_strconcat ("<li>", UNICODE_HIDDEN_SPACE, "</li>", NULL),
+                       NULL);
+
+               if (format != E_EDITOR_SELECTION_BLOCK_FORMAT_ORDERED_LIST) {
+                       webkit_dom_element_set_attribute (
+                               element, "type",
+                               (format == E_EDITOR_SELECTION_BLOCK_FORMAT_ORDERED_LIST_ALPHA) ?
+                                       "A" : "I", NULL);
+               }
+               webkit_dom_range_insert_node (range, WEBKIT_DOM_NODE (element), NULL);
+
+               /* Move caret into newly inserted list */
+               window = webkit_dom_document_get_default_view (document);
+               window_selection = webkit_dom_dom_window_get_selection (window);
+               new_range = webkit_dom_document_create_range (document);
+
+               webkit_dom_range_select_node_contents (
+                       new_range, WEBKIT_DOM_NODE (element), NULL);
+               webkit_dom_range_collapse (new_range, FALSE, NULL);
+               webkit_dom_dom_selection_remove_all_ranges (window_selection);
+               webkit_dom_dom_selection_add_range (window_selection, new_range);
+
+               /* Remove hidden space character */
+               node = webkit_dom_node_get_first_child (WEBKIT_DOM_NODE (element));
+               webkit_dom_html_element_set_inner_text (WEBKIT_DOM_HTML_ELEMENT (node), "", NULL);
+       }
 
        /* Fine tuning - set the specific marker type for ordered lists */
        if ((format == E_EDITOR_SELECTION_BLOCK_FORMAT_ORDERED_LIST_ALPHA) ||