[evolution/wip/webkit-composer: 415/966] Drop camel text to HTML conversion when switching from plain text to HTML mode

[Tomas Popela <tpopela src gnome org>]

commit 317309292610472586debf3808b414d4b9e29672
Author: Tomas Popela <tpopela redhat com>
Date:   Tue Jul 2 13:32:55 2013 +0200

    Drop camel text to HTML conversion when switching from plain text to HTML mode
    
    When switching composer mode from plain text to HTML we don't want to process
    the composer content, because it is actually written in HTML. We still have to
    replace smileys for equivalent image. Before this change this camel conversion
    was introducing whitespaces into composer content.

 e-util/e-editor-widget.c |   83 ++++++++++++++++-----------------------------
 1 files changed, 30 insertions(+), 53 deletions(-)
---
diff --git a/e-util/e-editor-widget.c b/e-util/e-editor-widget.c
index 6b151fa..2b3c59a 100644
--- a/e-util/e-editor-widget.c
+++ b/e-util/e-editor-widget.c
@@ -1543,32 +1543,7 @@ e_editor_widget_set_html_mode (EEditorWidget *widget,
        e_editor_widget_update_fonts (widget);
 
        if (widget->priv->html_mode) {
-               gchar *plain_text, *html;
-
-               plain_text = e_editor_widget_get_text_plain (widget);
-
-               /* FIXME WEBKIT: This does not process smileys! */
-               html = camel_text_to_html (
-                       plain_text,
-                       CAMEL_MIME_FILTER_TOHTML_CONVERT_NL |
-                       CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES |
-                       CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS |
-                       CAMEL_MIME_FILTER_TOHTML_MARK_CITATION |
-                       CAMEL_MIME_FILTER_TOHTML_CONVERT_ADDRESSES |
-                       CAMEL_MIME_FILTER_TOHTML_FORMAT_FLOWED,
-                       0);
-
-               if (changing) {
-                       gchar *tmp;
-                       tmp = g_strconcat (html, "<span id=\"-x-evo-changing-mode\"></span>", NULL);
-                       g_free (html);
-                       html = tmp;
-               }
-
-               e_editor_widget_set_text_html (widget, html);
-
-               g_free (plain_text);
-               g_free (html);
+               /* FIXME WEBKIT: Process smileys! */
        } else {
                gchar *plain;
 
@@ -1745,27 +1720,12 @@ static void
 process_elements (WebKitDOMNode *node,
                   GString *buffer)
 {
-       WebKitDOMDocument *document;
-       WebKitDOMDOMWindow *window;
        WebKitDOMNodeList *nodes;
-       WebKitDOMCSSStyleDeclaration *style;
-       gchar *display, *tagname;
        gulong ii, length;
        GRegex *regex, *regex_hidden_space;
 
-       document = webkit_dom_node_get_owner_document (node);
-       window = webkit_dom_document_get_default_view (document);
-
-       /* Is this a block element? */
-       style = webkit_dom_dom_window_get_computed_style (
-               window, WEBKIT_DOM_ELEMENT (node), "");
-       display = webkit_dom_css_style_declaration_get_property_value (
-               style, "display");
-
-       tagname = webkit_dom_element_get_tag_name (WEBKIT_DOM_ELEMENT (node));
-
        /* Replace images with smileys by their text representation */
-       if (g_ascii_strncasecmp (tagname, "IMG", 3) == 0) {
+       if (WEBKIT_DOM_IS_HTML_IMAGE_ELEMENT (node)) {
                if (webkit_dom_element_has_attribute (
                                WEBKIT_DOM_ELEMENT (node), "x-evo-smiley")) {
 
@@ -1780,7 +1740,6 @@ process_elements (WebKitDOMNode *node,
                                        buffer, " %s ", emoticon->text_face);
 
                        g_free (smiley_name);
-                       g_free (display);
 
                        /* IMG can't have child elements, so we return now */
                        return;
@@ -1788,8 +1747,10 @@ process_elements (WebKitDOMNode *node,
        }
 
        /* Skip signature */
-       if (g_strcmp0 (webkit_dom_element_get_class_name (WEBKIT_DOM_ELEMENT (node)), 
"-x-evolution-signature") == 0)
+       if (g_strcmp0 (webkit_dom_element_get_class_name (WEBKIT_DOM_ELEMENT (node)),
+                      "-x-evolution-signature") == 0) {
                return;
+       }
 
        nodes = webkit_dom_node_get_child_nodes (node);
        length = webkit_dom_node_list_get_length (nodes);
@@ -1798,37 +1759,53 @@ process_elements (WebKitDOMNode *node,
 
        for (ii = 0; ii < length; ii++) {
                WebKitDOMNode *child;
+               gboolean caret_position_node= FALSE;
 
                child = webkit_dom_node_list_item (nodes, ii);
-               if (webkit_dom_node_get_node_type (child) == 3) {
+               if (WEBKIT_DOM_IS_TEXT (child)) {
                        gchar *content, *tmp;
 
-                       tmp = webkit_dom_node_get_text_content (child);
+                       content = webkit_dom_node_get_text_content (child);
 
                        /* Replace tabs with 4 whitespaces, otherwise they got
                         * replaced by single whitespace */
-                       content = g_regex_replace (
-                                       regex, tmp, -1, 0, "    ",
+                       tmp = g_regex_replace (
+                                       regex, content, -1, 0, "    ",
                                        0, NULL);
 
+                       g_free (content);
+
                        content = g_regex_replace (
-                                       regex_hidden_space, content, -1, 0, "", 0, NULL);
+                                       regex_hidden_space, tmp, -1, 0, "", 0, NULL);
 
                        g_string_append (buffer, content);
                        g_free (tmp);
                        g_free (content);
                } else {
-                       if (g_strcmp0 (webkit_dom_node_get_local_name (child), "br") == 0) {
-                               g_string_append (buffer, "\n");
+                       if (WEBKIT_DOM_IS_HTML_ELEMENT (child) &&
+                               g_strcmp0 (webkit_dom_html_element_get_id (WEBKIT_DOM_HTML_ELEMENT (child)),
+                                          "-x-evo-caret-position") == 0) {
+
+                               g_string_append (buffer, "-x-evo-caret-position");
+                               caret_position_node = TRUE;
                        }
+
+                       if (g_strcmp0 (webkit_dom_node_get_local_name (child), "br") == 0)
+                               g_string_append (buffer, "\n");
                }
 
                if (webkit_dom_node_has_child_nodes (child)) {
-                       process_elements (child, buffer);
+                       if (!caret_position_node)
+                               process_elements (child, buffer);
+               }
+       }
+
+       if (WEBKIT_DOM_IS_HTML_DIV_ELEMENT (node) || WEBKIT_DOM_IS_HTML_PARAGRAPH_ELEMENT (node)) {
+               if (g_utf8_strlen (webkit_dom_node_get_text_content (node), -1) > 0) {
+                       g_string_append (buffer, "\n");
                }
        }
 
-       g_free (display);
        g_regex_unref (regex);
        g_regex_unref (regex_hidden_space);
 }