[evolution/wip/webkit2] EHTMLEditorSelection - Blocks are wrongly wrapped around selection markers

[Milan Crha <mcrha src gnome org>]

commit 660cc84c548ff0bbb1cab093e5d190c7ccaade05
Author: Tomas Popela <tpopela redhat com>
Date:   Tue Mar 1 15:42:21 2016 +0100

    EHTMLEditorSelection - Blocks are wrongly wrapped around selection markers

 .../e-html-editor-selection-dom-functions.c        |   88 +++++++++++++++----
 1 files changed, 69 insertions(+), 19 deletions(-)
---
diff --git a/web-extensions/composer/e-html-editor-selection-dom-functions.c 
b/web-extensions/composer/e-html-editor-selection-dom-functions.c
index f645f3e..fea1d67 100644
--- a/web-extensions/composer/e-html-editor-selection-dom-functions.c
+++ b/web-extensions/composer/e-html-editor-selection-dom-functions.c
@@ -2166,6 +2166,7 @@ wrap_lines (WebKitDOMDocument *document,
        gulong length_left;
        gchar *text_content;
        gboolean compensated = FALSE;
+       gboolean check_next_node = FALSE;
 
        has_selection = !dom_selection_is_collapsed (document);
 
@@ -2231,10 +2232,12 @@ wrap_lines (WebKitDOMDocument *document,
                        WebKitDOMNode *nd = WEBKIT_DOM_NODE (selection_end_marker);
 
                        while (nd) {
+                               WebKitDOMNode *parent_node;
                                WebKitDOMNode *next_nd = webkit_dom_node_get_next_sibling (nd);
 
-                               if (!next_nd && !webkit_dom_node_is_same_node 
(webkit_dom_node_get_parent_node (nd), block_clone))
-                                       next_nd = webkit_dom_node_get_next_sibling 
(webkit_dom_node_get_parent_node (nd));
+                               parent_node = webkit_dom_node_get_parent_node (nd);
+                               if (!next_nd && parent_node && !webkit_dom_node_is_same_node (parent_node, 
block_clone))
+                                       next_nd = webkit_dom_node_get_next_sibling (parent_node);
 
                                if (WEBKIT_DOM_IS_HTML_BR_ELEMENT (nd)) {
                                        if (remove_all_br)
@@ -2387,10 +2390,19 @@ wrap_lines (WebKitDOMDocument *document,
                        g_free (text_content);
                } else {
                        if (dom_is_selection_position_node (node)) {
+                               if (line_length == 0) {
+                                       WebKitDOMNode *tmp_node;
+
+                                       tmp_node = webkit_dom_node_get_previous_sibling (node);
+                                       /* Only check if there is some node before the selection marker. */
+                                       if (tmp_node && !dom_is_selection_position_node (tmp_node))
+                                               check_next_node = TRUE;
+                               }
                                node = webkit_dom_node_get_next_sibling (node);
                                continue;
                        }
 
+                       check_next_node = FALSE;
                        /* If element is ANCHOR we wrap it separately */
                        if (WEBKIT_DOM_IS_HTML_ANCHOR_ELEMENT (node)) {
                                glong anchor_length;
@@ -2482,14 +2494,25 @@ wrap_lines (WebKitDOMDocument *document,
                        WEBKIT_DOM_CHARACTER_DATA (node));
 
                if ((length_left + line_length) <= length_to_wrap) {
+                       if (check_next_node)
+                               goto check_node;
                        line_length += length_left;
+                       if (line_length == length_to_wrap)
+                               line_length = 0;
                        goto next_node;
                }
 
                /* wrap until we have something */
                while (node && (length_left + line_length) > length_to_wrap) {
+                       gboolean insert_and_continue;
                        gint max_length;
 
+ check_node:
+                       insert_and_continue = FALSE;
+
+                       if (!WEBKIT_DOM_IS_CHARACTER_DATA (node))
+                               goto next_node;
+
                        element = webkit_dom_document_create_element (document, "BR", NULL);
                        element_add_class (element, "-x-evo-wrap-br");
 
@@ -2497,6 +2520,11 @@ wrap_lines (WebKitDOMDocument *document,
                        if (max_length < 0)
                                max_length = length_to_wrap;
                        else if (max_length == 0) {
+                               if (check_next_node) {
+                                       insert_and_continue = TRUE;
+                                       goto check;
+                               }
+
                                /* Break before the current node and continue. */
                                webkit_dom_node_insert_before (
                                        webkit_dom_node_get_parent_node (node),
@@ -2523,9 +2551,11 @@ wrap_lines (WebKitDOMDocument *document,
                                 * split after the last character that will fit on the
                                 * previous line. To avoid that we need to put the
                                 * concatenated word on the next line. */
-                               if (offset == -1) {
+                               if (offset == -1 || check_next_node) {
                                        WebKitDOMNode *prev_sibling;
 
+ check:
+                                       check_next_node = FALSE;
                                        prev_sibling = webkit_dom_node_get_previous_sibling (node);
                                        if (prev_sibling && dom_is_selection_position_node (prev_sibling)) {
                                                prev_sibling = webkit_dom_node_get_previous_sibling 
(prev_sibling);
@@ -2588,7 +2618,20 @@ wrap_lines (WebKitDOMDocument *document,
                                                        }
                                                }
                                        }
-                                       offset = max_length;
+                                       if (insert_and_continue) {
+                                               webkit_dom_node_insert_before (
+                                                       webkit_dom_node_get_parent_node (node),
+                                                       WEBKIT_DOM_NODE (element),
+                                                       node,
+                                                       NULL);
+
+                                               offset = 0;
+                                               line_length = 0;
+                                               insert_and_continue = FALSE;
+                                               continue;
+                                       }
+
+                                       offset = offset != -1 ? offset : max_length;
                                }
                        }
 
@@ -2603,28 +2646,28 @@ wrap_lines (WebKitDOMDocument *document,
                                if (nd) {
                                        gchar *nd_content;
 
+
                                        nd_content = webkit_dom_node_get_text_content (nd);
                                        if (nd_content && *nd_content) {
                                                if (*nd_content == ' ')
                                                        mark_and_remove_leading_space (document, nd);
                                                g_free (nd_content);
-                                               nd_content = webkit_dom_node_get_text_content (nd);
-                                               if (!*nd_content)
-                                                       remove_node (nd);
-                                               g_free (nd_content);
                                        }
 
-                                       if (nd) {
-                                               webkit_dom_node_insert_before (
-                                                       webkit_dom_node_get_parent_node (node),
-                                                       WEBKIT_DOM_NODE (element),
-                                                       nd,
-                                                       NULL);
+                                       webkit_dom_node_insert_before (
+                                               webkit_dom_node_get_parent_node (node),
+                                               WEBKIT_DOM_NODE (element),
+                                               nd,
+                                               NULL);
 
-                                               node = webkit_dom_node_get_next_sibling (
-                                                       WEBKIT_DOM_NODE (element));
-                                               offset = 0;
-                                       }
+                                       offset = 0;
+
+                                       nd_content = webkit_dom_node_get_text_content (nd);
+                                       if (!*nd_content)
+                                               remove_node (nd);
+                                       g_free (nd_content);
+                                       node = webkit_dom_node_get_next_sibling (
+                                               WEBKIT_DOM_NODE (element));
                                } else {
                                        webkit_dom_node_append_child (
                                                webkit_dom_node_get_parent_node (node),
@@ -2638,7 +2681,7 @@ wrap_lines (WebKitDOMDocument *document,
                                        node,
                                        NULL);
                        }
-                       if (node)
+                       if (node && WEBKIT_DOM_IS_CHARACTER_DATA (node))
                                length_left = webkit_dom_character_data_get_length (
                                        WEBKIT_DOM_CHARACTER_DATA (node));
 
@@ -2715,6 +2758,13 @@ wrap_lines (WebKitDOMDocument *document,
 
                return NULL;
        } else {
+               WebKitDOMNode *last_child;
+
+               last_child = webkit_dom_node_get_last_child (block_clone);
+               if (last_child && WEBKIT_DOM_IS_HTML_BR_ELEMENT (last_child) &&
+                   element_has_class (WEBKIT_DOM_ELEMENT (last_child), "-x-evo-wrap-br"))
+                       remove_node (last_child);
+
                webkit_dom_node_normalize (block_clone);
 
                node = webkit_dom_node_get_parent_node (block);