/**
* 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;
}
gboolean
e_editor_selection_get_superscript (EEditorSelection *selection)
{
WebKitDOMNode *node;
WebKitDOMRange *range;
g_return_val_if_fail (E_IS_EDITOR_SELECTION (selection), FALSE);
range = editor_selection_get_current_range (selection);
node = webkit_dom_range_get_common_ancestor_container (range, NULL);
while (node) {
gchar *tag_name;
tag_name = webkit_dom_element_get_tag_name (WEBKIT_DOM_ELEMENT (node));
if (g_ascii_strncasecmp (tag_name, "sup", 3) == 0) {
g_free (tag_name);
break;
}
g_free (tag_name);
node = webkit_dom_node_get_parent_node (node);
}
return (node != NULL);
}
static Element *get_active_element(Document *doc)
{
char *tagname;
Document *d = NULL;
Element *active, *result = NULL;
active = webkit_dom_html_document_get_active_element((void*)doc);
if (!active) {
return result;
}
tagname = webkit_dom_element_get_tag_name(active);
if (!g_strcmp0(tagname, "FRAME")) {
d = webkit_dom_html_frame_element_get_content_document(WEBKIT_DOM_HTML_FRAME_ELEMENT(active));
result = get_active_element(d);
} else if (!g_strcmp0(tagname, "IFRAME")) {
d = webkit_dom_html_iframe_element_get_content_document(WEBKIT_DOM_HTML_IFRAME_ELEMENT(active));
result = get_active_element(d);
}
g_free(tagname);
if (result) {
return result;
}
return active;
}
/**
* Indicates if the given dom element is an editable element like text input,
* password or textarea.
*/
gboolean dom_is_editable(Element *element)
{
gboolean result = false;
char *tagname, *type;
if (!element) {
return result;
}
tagname = webkit_dom_element_get_tag_name(element);
type = webkit_dom_element_get_attribute(element, "type");
/* element is editable if it's a text area or input with no type, text or
* pasword */
if (!g_ascii_strcasecmp(tagname, "textarea")) {
result = true;
} else if (!g_ascii_strcasecmp(tagname, "input")
&& (!*type || !g_ascii_strcasecmp(type, "text") || !g_ascii_strcasecmp(type, "password"))
) {
result = true;
} else {
result = false;
}
g_free(tagname);
g_free(type);
return result;
}
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;
}
static gboolean
plugins_before_load_cb(WebKitDOMDOMWindow *win, WebKitDOMEvent *event, GList *gl)
{
WebKitDOMElement *element = (void*)webkit_dom_event_get_src_element(event);
char *tagname = webkit_dom_element_get_tag_name(element);
char *type = webkit_dom_element_get_attribute(element, "type");
if ( (!g_strcmp0(type, "application/x-shockwave-flash")
&& (! g_ascii_strcasecmp(tagname, "object") || ! g_ascii_strcasecmp(tagname, "embed")) )
&& ! g_slist_find(ALLOWED(gl), element) )
{
VIEW(gl)->plugins->status |= PLUGIN_STATUS_HAS_PLUGIN;
webkit_dom_event_prevent_default(event);
webkit_dom_event_stop_propagation(event);
plugins_create_click_element(element, gl);
}
g_object_unref(element);
g_free(tagname);
g_free(type);
return true;
}
