/**
* e_html_editor_dom_node_find_parent_element:
* @node: Start node
* @tagname: Tag name of element to search
*
* Recursively searches for first occurance of element with given @tagname
* that is parent of given @node.
*
* Returns: A #WebKitDOMElement with @tagname representing parent of @node or
* @NULL when @node has no parent with given @tagname. When @node matches @tagname,
* then the @node is returned.
*/
WebKitDOMElement *
e_html_editor_dom_node_find_parent_element (WebKitDOMNode *node,
const gchar *tagname)
{
gint taglen = strlen (tagname);
while (node) {
if (WEBKIT_DOM_IS_ELEMENT (node)) {
gchar *node_tagname;
node_tagname = webkit_dom_element_get_tag_name (
WEBKIT_DOM_ELEMENT (node));
if (node_tagname &&
(strlen (node_tagname) == taglen) &&
(g_ascii_strncasecmp (node_tagname, tagname, taglen) == 0)) {
g_free (node_tagname);
return WEBKIT_DOM_ELEMENT (node);
}
g_free (node_tagname);
}
node = WEBKIT_DOM_NODE (webkit_dom_node_get_parent_element (node));
}
return NULL;
}
/**
* e_html_editor_dom_node_find_child_element:
* @node: Start node
* @tagname: Tag name of element to search.
*
* Recursively searches for first occurrence of element with given @tagname that
* is a child of @node.
*
* Returns: A #WebKitDOMElement with @tagname representing a child of @node or
* @NULL when @node has no child with given @tagname. When @node matches @tagname,
* then the @node is returned.
*/
WebKitDOMElement *
e_html_editor_dom_node_find_child_element (WebKitDOMNode *node,
const gchar *tagname)
{
WebKitDOMNode *start_node = node;
gint taglen = strlen (tagname);
do {
if (WEBKIT_DOM_IS_ELEMENT (node)) {
gchar *node_tagname;
node_tagname = webkit_dom_element_get_tag_name (
WEBKIT_DOM_ELEMENT (node));
if (node_tagname &&
(strlen (node_tagname) == taglen) &&
(g_ascii_strncasecmp (node_tagname, tagname, taglen) == 0)) {
g_free (node_tagname);
return WEBKIT_DOM_ELEMENT (node);
}
g_free (node_tagname);
}
if (webkit_dom_node_has_child_nodes (node)) {
node = webkit_dom_node_get_first_child (node);
} else if (webkit_dom_node_get_next_sibling (node)) {
node = webkit_dom_node_get_next_sibling (node);
} else {
node = webkit_dom_node_get_parent_node (node);
}
} while (!webkit_dom_node_is_same_node (node, start_node));
return NULL;
}
static gboolean
get_has_style (EEditorSelection *selection, const gchar *style_tag)
{
WebKitDOMNode *node;
WebKitDOMElement *element;
WebKitDOMRange *range;
gboolean result;
gint tag_len;
range = editor_selection_get_current_range (selection);
if (!range)
return FALSE;
node = webkit_dom_range_get_start_container (range, NULL);
if (!WEBKIT_DOM_IS_ELEMENT (node))
element = webkit_dom_node_get_parent_element (node);
else
element = WEBKIT_DOM_ELEMENT (node);
tag_len = strlen (style_tag);
result = FALSE;
while (!result && element) {
gchar *element_tag;
element_tag = webkit_dom_element_get_tag_name (element);
result = ((tag_len == strlen (element_tag)) &&
(g_ascii_strncasecmp (element_tag, style_tag, tag_len) == 0));
/* Special case: <blockquote type=cite> marks quotation, while
* just <blockquote> is used for indentation. If the <blockquote>
* has type=cite, then ignore it */
if (result && g_ascii_strncasecmp (element_tag, "blockquote", 10) == 0) {
if (webkit_dom_element_has_attribute (element, "type")) {
gchar *type;
type = webkit_dom_element_get_attribute (
element, "type");
if (g_ascii_strncasecmp (type, "cite", 4) == 0) {
result = FALSE;
}
g_free (type);
}
}
g_free (element_tag);
if (result) {
break;
}
element = webkit_dom_node_get_parent_element (
WEBKIT_DOM_NODE (element));
}
return result;
}
gboolean
e_html_editor_node_is_selection_position_node (WebKitDOMNode *node)
{
WebKitDOMElement *element;
if (!node || !WEBKIT_DOM_IS_ELEMENT (node))
return FALSE;
element = WEBKIT_DOM_ELEMENT (node);
return element_has_id (element, "-x-evo-selection-start-marker") ||
element_has_id (element, "-x-evo-selection-end-marker");
}
gboolean
element_has_tag (WebKitDOMElement *element,
const gchar* tag)
{
gchar *element_tag;
if (!WEBKIT_DOM_IS_ELEMENT (element))
return FALSE;
element_tag = webkit_dom_node_get_local_name (WEBKIT_DOM_NODE (element));
if (g_ascii_strcasecmp (element_tag, tag) != 0) {
g_free (element_tag);
return FALSE;
}
g_free (element_tag);
return TRUE;
}
gboolean
element_has_id (WebKitDOMElement *element,
const gchar* id)
{
gchar *element_id;
if (!element)
return FALSE;
if (!WEBKIT_DOM_IS_ELEMENT (element))
return FALSE;
element_id = webkit_dom_element_get_id (element);
if (g_ascii_strcasecmp (element_id, id) != 0) {
g_free (element_id);
return FALSE;
}
g_free (element_id);
return TRUE;
}
WebKitDOMNode *
e_html_editor_get_parent_block_node_from_child (WebKitDOMNode *node)
{
WebKitDOMNode *parent = node;
if (!WEBKIT_DOM_IS_ELEMENT (parent) ||
e_html_editor_node_is_selection_position_node (parent))
parent = webkit_dom_node_get_parent_node (parent);
if (element_has_class (WEBKIT_DOM_ELEMENT (parent), "-x-evo-temp-text-wrapper") ||
element_has_class (WEBKIT_DOM_ELEMENT (parent), "-x-evo-quoted") ||
element_has_class (WEBKIT_DOM_ELEMENT (parent), "-x-evo-quote-character") ||
element_has_class (WEBKIT_DOM_ELEMENT (parent), "-x-evo-signature") ||
WEBKIT_DOM_IS_HTML_ANCHOR_ELEMENT (parent) ||
element_has_tag (WEBKIT_DOM_ELEMENT (parent), "b") ||
element_has_tag (WEBKIT_DOM_ELEMENT (parent), "i") ||
element_has_tag (WEBKIT_DOM_ELEMENT (parent), "u"))
parent = webkit_dom_node_get_parent_node (parent);
if (element_has_class (WEBKIT_DOM_ELEMENT (parent), "-x-evo-quoted"))
parent = webkit_dom_node_get_parent_node (parent);
return parent;
}
