static void test_dom_node_hierarchy_navigation(DomNodeFixture* fixture, gconstpointer data)
{
WebKitDOMDocument* document;
WebKitDOMHTMLHeadElement* head;
WebKitDOMHTMLBodyElement* body;
WebKitDOMNodeList* list;
WebKitDOMNode* ptr;
gulong i, length;
document = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(fixture->webView));
g_assert(document);
g_assert(WEBKIT_DOM_IS_DOCUMENT(document));
head = webkit_dom_document_get_head(document);
g_assert(head);
g_assert(WEBKIT_DOM_IS_HTML_HEAD_ELEMENT(head));
/* Title, head's child */
g_assert(webkit_dom_node_has_child_nodes(WEBKIT_DOM_NODE(head)));
list = webkit_dom_node_get_child_nodes(WEBKIT_DOM_NODE(head));
g_assert_cmpint(webkit_dom_node_list_get_length(list), ==, 1);
ptr = webkit_dom_node_list_item(list, 0);
g_assert(ptr);
g_assert(WEBKIT_DOM_IS_HTML_TITLE_ELEMENT(ptr));
g_object_unref(list);
/* Body, Head sibling */
ptr = webkit_dom_node_get_next_sibling(WEBKIT_DOM_NODE(head));
g_assert(ptr);
body = WEBKIT_DOM_HTML_BODY_ELEMENT(ptr);
g_assert(WEBKIT_DOM_IS_HTML_BODY_ELEMENT(body));
/* There is no third sibling */
ptr = webkit_dom_node_get_next_sibling(ptr);
g_assert(ptr == NULL);
/* Body's previous sibling is Head */
ptr = webkit_dom_node_get_previous_sibling(WEBKIT_DOM_NODE(body));
g_assert(ptr);
g_assert(WEBKIT_DOM_IS_HTML_HEAD_ELEMENT(ptr));
/* Body has 3 children */
g_assert(webkit_dom_node_has_child_nodes(WEBKIT_DOM_NODE(body)));
list = webkit_dom_node_get_child_nodes(WEBKIT_DOM_NODE(body));
length = webkit_dom_node_list_get_length(list);
g_assert_cmpint(length, ==, 3);
/* The three of them are P tags */
for (i = 0; i < length; i++) {
ptr = webkit_dom_node_list_item(list, i);
g_assert(ptr);
g_assert(WEBKIT_DOM_IS_HTML_PARAGRAPH_ELEMENT(ptr));
}
/* Go backwards */
for (i = 0; ptr; ptr = webkit_dom_node_get_previous_sibling(ptr), i++)
/* Nothing */;
g_assert_cmpint(i, ==, 3);
g_object_unref(list);
}
static void test_dom_node_insertion(DomNodeFixture* fixture, gconstpointer data)
{
WebKitDOMDocument* document;
WebKitDOMHTMLElement* body;
WebKitDOMElement* p, *div;
WebKitDOMNodeList* list;
WebKitDOMNode* node;
document = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(fixture->webView));
g_assert(document);
body = webkit_dom_document_get_body(document);
g_assert(body);
g_assert(WEBKIT_DOM_IS_HTML_ELEMENT(body));
/* Body shouldn't have any children at this point */
g_assert(webkit_dom_node_has_child_nodes(WEBKIT_DOM_NODE(body)) == FALSE);
/* Insert one P element */
p = webkit_dom_document_create_element(document, "P", NULL);
webkit_dom_node_append_child(WEBKIT_DOM_NODE(body), WEBKIT_DOM_NODE(p), NULL);
/* Now it should have one, the same that we inserted */
g_assert(webkit_dom_node_has_child_nodes(WEBKIT_DOM_NODE(body)));
list = webkit_dom_node_get_child_nodes(WEBKIT_DOM_NODE(body));
g_assert_cmpint(webkit_dom_node_list_get_length(list), ==, 1);
node = webkit_dom_node_list_item(list, 0);
g_assert(node);
g_assert(webkit_dom_node_is_same_node(WEBKIT_DOM_NODE(p), node));
g_object_unref(list);
/* Replace the P tag with a DIV tag */
div = webkit_dom_document_create_element(document, "DIV", NULL);
webkit_dom_node_replace_child(WEBKIT_DOM_NODE(body), WEBKIT_DOM_NODE(div), WEBKIT_DOM_NODE(p), NULL);
g_assert(webkit_dom_node_has_child_nodes(WEBKIT_DOM_NODE(body)));
list = webkit_dom_node_get_child_nodes(WEBKIT_DOM_NODE(body));
g_assert_cmpint(webkit_dom_node_list_get_length(list), ==, 1);
node = webkit_dom_node_list_item(list, 0);
g_assert(node);
g_assert(webkit_dom_node_is_same_node(WEBKIT_DOM_NODE(div), node));
g_object_unref(list);
/* Now remove the tag */
webkit_dom_node_remove_child(WEBKIT_DOM_NODE(body), node, NULL);
list = webkit_dom_node_get_child_nodes(WEBKIT_DOM_NODE(body));
g_assert_cmpint(webkit_dom_node_list_get_length(list), ==, 0);
g_object_unref(list);
/* TODO: insert_before, which does not seem to be working correctly */
}
/**
* 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;
}
void
wgp_util_remove_all_children (WebKitDOMNode* parent)
{
WebKitDOMNode* node;
while (webkit_dom_node_has_child_nodes (parent)) {
node = webkit_dom_node_get_first_child (parent);
webkit_dom_node_remove_child (parent, node, NULL);
}
}
static gulong
walk_dom (WebKitDOMNode *node) {
WebKitDOMNodeList *list;
gulong i, length, count;
if (! webkit_dom_node_has_child_nodes(node)) {
return 1;
}
list = webkit_dom_node_get_child_nodes(node);
length = webkit_dom_node_list_get_length(list);
count = 1;
for (i = 0; i < length; ++i) {
WebKitDOMNode *child_node;
child_node = webkit_dom_node_list_item(list, i);
count += walk_dom(child_node);
}
g_object_unref(list);
return count;
}
gboolean
e_editor_selection_has_text (EEditorSelection *selection)
{
WebKitDOMRange *range;
WebKitDOMNode *node;
g_return_val_if_fail (E_IS_EDITOR_SELECTION (selection), FALSE);
range = editor_selection_get_current_range (selection);
node = webkit_dom_range_get_start_container (range, NULL);
if (webkit_dom_node_get_node_type (node) == 3) {
return TRUE;
}
node = webkit_dom_range_get_end_container (range, NULL);
if (webkit_dom_node_get_node_type (node) == 3) {
return TRUE;
}
node = WEBKIT_DOM_NODE (webkit_dom_range_clone_contents (range, NULL));
while (node) {
if (webkit_dom_node_get_node_type (node) == 3) {
return TRUE;
}
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);
if (node) {
node = webkit_dom_node_get_next_sibling (node);
}
}
}
return FALSE;
}
void
e_editor_selection_wrap_lines (EEditorSelection *selection)
{
WebKitDOMRange *range;
WebKitDOMNode *node, *start_node;
WebKitDOMDocument *document;
WebKitDOMElement *element;
WebKitDOMDocumentFragment *fragment;
gint len;
gchar *html;
g_return_if_fail (E_IS_EDITOR_SELECTION (selection));
document = webkit_web_view_get_dom_document (selection->priv->webview);
range = editor_selection_get_current_range (selection);
/* Extend the range to include entire nodes */
webkit_dom_range_select_node_contents (
range,
webkit_dom_range_get_common_ancestor_container (range, NULL),
NULL);
/* Copy the selection from DOM, wrap the lines and then paste it back
* using the DOM command which will overwrite the selection, and
* record it as an undoable action */
fragment = webkit_dom_range_clone_contents (range, NULL);
node = WEBKIT_DOM_NODE (fragment);
start_node = node;
len = 0;
while (node) {
/* Find nearest text node */
if (webkit_dom_node_get_node_type (node) != 3) {
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 {
if (webkit_dom_node_is_equal_node (node, start_node)) {
break;
}
node = webkit_dom_node_get_parent_node (node);
if (node) {
node = webkit_dom_node_get_next_sibling (node);
}
}
continue;
}
/* If length of this node + what we already have is still less
* then 71 characters, then just join it and continue to next
* node */
if ((webkit_dom_character_data_get_length (
(WebKitDOMCharacterData *) node) + len) < WORD_WRAP_LENGTH) {
len += webkit_dom_character_data_get_length (
(WebKitDOMCharacterData *) node);
} else {
gint offset;
/* Find where we can line-break the node so that it
* effectively fills the rest of current row */
offset = find_where_to_break_line (node, WORD_WRAP_LENGTH - len);
if (offset > 0) {
/* Split the node and append <BR> tag to it */
webkit_dom_text_split_text (
(WebKitDOMText *) node, len + offset, NULL);
element = webkit_dom_document_create_element (
document, "BR", NULL);
/* WebKit throws warning when ref_child is NULL */
if (webkit_dom_node_get_next_sibling (node)) {
webkit_dom_node_insert_before (
webkit_dom_node_get_parent_node (node),
WEBKIT_DOM_NODE (element),
webkit_dom_node_get_next_sibling (node),
NULL);
} else {
webkit_dom_node_append_child (
webkit_dom_node_get_parent_node (node),
WEBKIT_DOM_NODE (element),
NULL);
}
len = 0;
}
}
/* Skip to next node */
if (webkit_dom_node_get_next_sibling (node)) {
node = webkit_dom_node_get_next_sibling (node);
} else {
if (webkit_dom_node_is_equal_node (node, start_node)) {
break;
}
node = webkit_dom_node_get_parent_node (node);
if (node) {
node = webkit_dom_node_get_next_sibling (node);
}
}
}
/* Create a wrapper DIV and put the processed content into it */
element = webkit_dom_document_create_element (document, "DIV", NULL);
webkit_dom_node_append_child (
WEBKIT_DOM_NODE (element), WEBKIT_DOM_NODE (start_node), NULL);
/* Get HTML code of the processed content */
html = webkit_dom_html_element_get_inner_html (
WEBKIT_DOM_HTML_ELEMENT (element));
/* Overwrite the current selection be the processed content, so that
* "UNDO" and "REDO" buttons work as expected */
e_editor_selection_insert_html (selection, html);
g_free (html);
}
