[evolution/wip/webkit-composer: 223/262] Allow appending to already inserted link in editor.

[Tomas Popela <tpopela src gnome org>]

commit f4332d82deacbf685a06bf7847ec014a984cae1d
Author: Tomas Popela <tpopela redhat com>
Date:   Mon Jul 22 17:08:48 2013 +0200

    Allow appending to already inserted link in editor.

 e-util/e-editor-widget.c |   93 +++++++++++++++++++++++++++++++++++++++------
 1 files changed, 80 insertions(+), 13 deletions(-)
---
diff --git a/e-util/e-editor-widget.c b/e-util/e-editor-widget.c
index 6769d4e..b166f34 100644
--- a/e-util/e-editor-widget.c
+++ b/e-util/e-editor-widget.c
@@ -429,15 +429,31 @@ editor_widget_check_magic_links (EEditorWidget *widget,
 
                g_free (url_end_raw);
                g_free (final_url);
-       }
-       else {
+       } else {
+               WebKitDOMElement *parent;
+               WebKitDOMNode *prev_sibling;
                gchar *href, *text, *url;
                gint diff;
-               WebKitDOMElement *parent;
+               const char* text_to_append;
+               gboolean appending_to_link = FALSE;
 
                parent = webkit_dom_node_get_parent_element (node);
-               /* if parent is href => we're editing the link */
-               if (!WEBKIT_DOM_IS_HTML_ANCHOR_ELEMENT (parent)) {
+               prev_sibling = webkit_dom_node_get_previous_sibling (node);
+
+               /* If previous sibling is ANCHOR and actual text node is not beginning with
+                * space => we're appending to link */
+               if (WEBKIT_DOM_IS_HTML_ANCHOR_ELEMENT (prev_sibling)) {
+                       text_to_append = webkit_dom_node_get_text_content (node);
+                       if (g_strcmp0 (text_to_append, "") != 0 &&
+                               !g_unichar_isspace (g_utf8_get_char (text_to_append))) {
+
+                               appending_to_link = TRUE;
+                               parent = WEBKIT_DOM_ELEMENT (prev_sibling);
+                       }
+               }
+
+               /* If parent is ANCHOR => we're editing the link */
+               if (!WEBKIT_DOM_IS_HTML_ANCHOR_ELEMENT (parent) && !appending_to_link) {
                        g_match_info_free (match_info);
                        g_regex_unref (regex);
                        g_free (node_text);
@@ -447,8 +463,15 @@ editor_widget_check_magic_links (EEditorWidget *widget,
                /* edit only if href and description are the same */
                href = webkit_dom_html_anchor_element_get_href (
                                WEBKIT_DOM_HTML_ANCHOR_ELEMENT (parent));
-               text = webkit_dom_html_element_get_inner_text (
-                               WEBKIT_DOM_HTML_ELEMENT (parent));
+
+               if (appending_to_link)
+                       text = g_strconcat (
+                               webkit_dom_html_element_get_inner_text (
+                                       WEBKIT_DOM_HTML_ELEMENT (parent)),
+                               text_to_append, NULL);
+               else
+                       text = webkit_dom_html_element_get_inner_text (
+                                       WEBKIT_DOM_HTML_ELEMENT (parent));
 
                if (strstr (href, "://") && !strstr (text, "://")) {
                        url = strstr (href, "://") + 3;
@@ -457,38 +480,63 @@ editor_widget_check_magic_links (EEditorWidget *widget,
                        if (text [strlen (text) - 1] != '/')
                                diff++;
 
-                       if (g_strcmp0 (url, text) != 0 && ABS (diff) == 1) {
+                       if ((g_strcmp0 (url, text) != 0 && ABS (diff) == 1) || appending_to_link) {
                                gchar *inner_html, *protocol, *new_href;
 
                                protocol = g_strndup (href, strstr (href, "://") - href + 3);
                                inner_html = webkit_dom_html_element_get_inner_html (WEBKIT_DOM_HTML_ELEMENT 
(parent));
-                               new_href = g_strconcat (protocol, inner_html, NULL);
+                               new_href = g_strconcat (protocol, inner_html,
+                                                       appending_to_link ? text_to_append : "", NULL);
 
                                webkit_dom_html_anchor_element_set_href (
                                        WEBKIT_DOM_HTML_ANCHOR_ELEMENT (parent),
                                        new_href);
 
+                               if (appending_to_link) {
+                                       webkit_dom_html_element_set_inner_html (
+                                               WEBKIT_DOM_HTML_ELEMENT (parent),
+                                               g_strconcat (inner_html, text_to_append, NULL),
+                                               NULL);
+
+                                       webkit_dom_node_remove_child (
+                                               webkit_dom_node_get_parent_node (node),
+                                               node, NULL);
+                               }
+
                                g_free (new_href);
                                g_free (protocol);
                                g_free (inner_html);
                        }
-               }
-               else {
+               } else {
                        diff = strlen (text) - strlen (href);
                        if (text [strlen (text) - 1] != '/')
                                diff++;
 
-                       if (g_strcmp0 (href, text) != 0 && ABS (diff) == 1) {
+                       if ((g_strcmp0 (href, text) != 0 && ABS (diff) == 1) || appending_to_link) {
                                gchar *inner_html;
                                gchar *new_href;
 
                                inner_html = webkit_dom_html_element_get_inner_html (WEBKIT_DOM_HTML_ELEMENT 
(parent));
-                               new_href = g_strconcat (inner_html, NULL);
+                               new_href = g_strconcat (
+                                               inner_html,
+                                               appending_to_link ? text_to_append : "",
+                                               NULL);
 
                                webkit_dom_html_anchor_element_set_href (
                                        WEBKIT_DOM_HTML_ANCHOR_ELEMENT (parent),
                                        new_href);
 
+                               if (appending_to_link) {
+                                       webkit_dom_html_element_set_inner_html (
+                                               WEBKIT_DOM_HTML_ELEMENT (parent),
+                                               g_strconcat (inner_html, text_to_append, NULL),
+                                               NULL);
+
+                                       webkit_dom_node_remove_child (
+                                               webkit_dom_node_get_parent_node (node),
+                                               node, NULL);
+                               }
+
                                g_free (new_href);
                                g_free (inner_html);
                        }
@@ -990,6 +1038,25 @@ editor_widget_key_release_event (GtkWidget *widget,
            (event->keyval == GDK_KEY_space)) {
 
                editor_widget_check_magic_links (editor_widget, range, FALSE, event);
+       } else {
+               WebKitDOMNode *node;
+
+               node = webkit_dom_range_get_end_container (range, NULL);
+
+               if (WEBKIT_DOM_IS_TEXT (node)) {
+                       const gchar *text;
+
+                       text = webkit_dom_node_get_text_content (node);
+
+                       if (g_strcmp0 (text, "") != 0 && !g_unichar_isspace (g_utf8_get_char (text))) {
+                               WebKitDOMNode *prev_sibling;
+
+                               prev_sibling = webkit_dom_node_get_previous_sibling (node);
+
+                               if (WEBKIT_DOM_IS_HTML_ANCHOR_ELEMENT (prev_sibling))
+                                       editor_widget_check_magic_links (editor_widget, range, FALSE, event);
+                       }
+               }
        }
 
        if ((event->keyval == GDK_KEY_Control_L) ||