/* we got the DOM API we need */
int
focus_input_document(struct tab *t, WebKitDOMDocument *doc)
{
WebKitDOMNodeList *input = NULL, *textarea = NULL;
WebKitDOMNode *n;
char *es;
int i, rv = 0 /* not found */;
WebKitDOMHTMLTextAreaElement *ta;
WebKitDOMHTMLInputElement *in;
/* we are deliberately ignoring tab index! */
/* try input first */
input = webkit_dom_document_get_elements_by_tag_name(doc, "input");
for (i = 0; i < webkit_dom_node_list_get_length(input); i++) {
n = webkit_dom_node_list_item(input, i);
in = (WebKitDOMHTMLInputElement*)n;
g_object_get(G_OBJECT(in), "type", &es, (char *)NULL);
if ((!g_str_equal("text", es) && !g_str_equal("password",es)) ||
webkit_dom_html_input_element_get_disabled(in)) {
/* skip not text */
g_free(es);
continue;
}
webkit_dom_element_focus((WebKitDOMElement*)in);
g_free(es);
rv = 1; /* found */
goto done;
}
/* now try textarea */
textarea = webkit_dom_document_get_elements_by_tag_name(doc, "textarea");
for (i = 0; i < webkit_dom_node_list_get_length(textarea); i++) {
n = webkit_dom_node_list_item(textarea, i);
ta = (WebKitDOMHTMLTextAreaElement*)n;
if (webkit_dom_html_text_area_element_get_disabled(ta)) {
/* it is hidden so skip */
continue;
}
webkit_dom_element_focus((WebKitDOMElement*)ta);
rv = 1; /* found */
goto done;
}
done:
if (input)
g_object_unref(input);
if (textarea)
g_object_unref(textarea);
return (rv);
}
static void test_dom_document_get_elements_by_tag_name(DomDocumentFixture* fixture, gconstpointer data)
{
g_assert(fixture);
WebKitWebView* view = (WebKitWebView*)fixture->webView;
g_assert(view);
WebKitDOMDocument* document = webkit_web_view_get_dom_document(view);
g_assert(document);
WebKitDOMNodeList* list = webkit_dom_document_get_elements_by_tag_name(document, "li");
g_assert(list);
gulong length = webkit_dom_node_list_get_length(list);
g_assert_cmpint(length, ==, 3);
guint i;
for (i = 0; i < length; i++) {
WebKitDOMNode* item = webkit_dom_node_list_item(list, i);
g_assert(item);
WebKitDOMElement* element = (WebKitDOMElement*)item;
g_assert(element);
g_assert_cmpstr(webkit_dom_element_get_tag_name(element), ==, "LI");
WebKitDOMHTMLElement* htmlElement = (WebKitDOMHTMLElement*)element;
char* n = g_strdup_printf("%d", i+1);
g_assert_cmpstr(webkit_dom_html_element_get_inner_text(htmlElement), ==, n);
g_free(n);
}
g_object_unref(list);
}
// frame_document_loaded watches signals emitted from the given document.
static void
frame_document_loaded(WebKitDOMDocument *doc,
Exten *exten)
{
// Track document, and don't register multiple times.
if(!g_hash_table_add(exten->registered_documents, doc)) {
return;
}
WebKitDOMEventTarget *target = WEBKIT_DOM_EVENT_TARGET(
webkit_dom_document_get_default_view(doc));
// listen for focus changes
webkit_dom_event_target_add_event_listener(
target,
"blur",
G_CALLBACK(active_element_change_cb),
true,
exten);
webkit_dom_event_target_add_event_listener(
target,
"focus",
G_CALLBACK(active_element_change_cb),
true,
exten);
// listen for resource loads.
webkit_dom_event_target_add_event_listener(
target,
"beforeload",
G_CALLBACK(adblock_before_load_cb),
true,
exten);
// Scan for existing iframes, and add them as new frames.
WebKitDOMNodeList *nodes = webkit_dom_document_get_elements_by_tag_name(
WEBKIT_DOM_DOCUMENT(doc),
"IFRAME");
gulong i;
gulong len;
if(nodes == NULL) {
len = 0;
} else {
len = webkit_dom_node_list_get_length(nodes);
}
for(i = 0; i < len; i++) {
WebKitDOMDocument *subdoc =
webkit_dom_html_iframe_element_get_content_document(
WEBKIT_DOM_HTML_IFRAME_ELEMENT(
webkit_dom_node_list_item(nodes, i)));
frame_document_loaded(subdoc, exten);
}
// Element hider
inject_adblock_css(doc, exten);
}
/**
* Set focus to the first found editable element and returns if a element was
* found to focus.
*/
gboolean dom_focus_input(WebKitWebView *view)
{
gboolean found = false;
WebKitDOMNode *html, *node;
WebKitDOMDocument *doc;
WebKitDOMDOMWindow *win;
WebKitDOMNodeList *list;
WebKitDOMXPathNSResolver *resolver;
WebKitDOMXPathResult* result;
doc = webkit_web_view_get_dom_document(view);
win = webkit_dom_document_get_default_view(doc);
list = webkit_dom_document_get_elements_by_tag_name(doc, "html");
if (!list) {
return false;
}
html = webkit_dom_node_list_item(list, 0);
resolver = webkit_dom_document_create_ns_resolver(doc, html);
if (!resolver) {
return false;
}
result = webkit_dom_document_evaluate(
doc, "//input[not(@type) or @type='text' or @type='password']|//textarea",
html, resolver, 0, NULL, NULL
);
if (!result) {
return false;
}
while ((node = webkit_dom_xpath_result_iterate_next(result, NULL))) {
if (element_is_visible(win, WEBKIT_DOM_ELEMENT(node))) {
webkit_dom_element_focus(WEBKIT_DOM_ELEMENT(node));
found = true;
break;
}
}
g_object_unref(list);
return found;
}
/**
* Find the first editable element and set the focus on it and enter input
* mode.
* Returns true if there was an editable element focused.
*/
gboolean dom_focus_input(Document *doc)
{
WebKitDOMNode *html, *node;
WebKitDOMDOMWindow *win;
WebKitDOMNodeList *list;
WebKitDOMXPathNSResolver *resolver;
WebKitDOMXPathResult* result;
Document *frame_doc;
guint i, len;
win = webkit_dom_document_get_default_view(doc);
list = webkit_dom_document_get_elements_by_tag_name(doc, "html");
if (!list) {
return false;
}
html = webkit_dom_node_list_item(list, 0);
g_object_unref(list);
resolver = webkit_dom_document_create_ns_resolver(doc, html);
if (!resolver) {
return false;
}
/* Use translate to match xpath expression case insensitive so that also
* intput filed of type="TEXT" are matched. */
result = webkit_dom_document_evaluate(
doc, "//input[not(@type) "
"or translate(@type,'ETX','etx')='text' "
"or translate(@type,'ADOPRSW','adoprsw')='password' "
"or translate(@type,'CLOR','clor')='color' "
"or translate(@type,'ADET','adet')='date' "
"or translate(@type,'ADEIMT','adeimt')='datetime' "
"or translate(@type,'ACDEILMOT','acdeilmot')='datetime-local' "
"or translate(@type,'AEILM','aeilm')='email' "
"or translate(@type,'HMNOT','hmnot')='month' "
"or translate(@type,'BEMNRU','bemnru')='number' "
"or translate(@type,'ACEHRS','acehrs')='search' "
"or translate(@type,'ELT','elt')='tel' "
"or translate(@type,'EIMT','eimt')='time' "
"or translate(@type,'LRU','lru')='url' "
"or translate(@type,'EKW','ekw')='week' "
"]|//textarea",
html, resolver, 5, NULL, NULL
);
if (!result) {
return false;
}
while ((node = webkit_dom_xpath_result_iterate_next(result, NULL))) {
if (element_is_visible(win, WEBKIT_DOM_ELEMENT(node))) {
vb_enter('i');
webkit_dom_element_focus(WEBKIT_DOM_ELEMENT(node));
return true;
}
}
/* Look for editable elements in frames too. */
list = webkit_dom_document_get_elements_by_tag_name(doc, "iframe");
len = webkit_dom_node_list_get_length(list);
for (i = 0; i < len; i++) {
node = webkit_dom_node_list_item(list, i);
frame_doc = webkit_dom_html_iframe_element_get_content_document(WEBKIT_DOM_HTML_IFRAME_ELEMENT(node));
/* Stop on first frame with focused element. */
if (dom_focus_input(frame_doc)) {
g_object_unref(list);
return true;
}
}
g_object_unref(list);
return false;
}
int
focus_input(struct tab *t)
{
WebKitDOMDocument *doc;
WebKitDOMNode *n;
WebKitDOMNodeList *fl = NULL, *ifl = NULL;
int i, fl_count, ifl_count, rv = 0;
WebKitDOMHTMLFrameElement *frame;
WebKitDOMHTMLIFrameElement *iframe;
/*
* Here is what we are doing:
* See if we got frames or iframes
*
* if we do focus on input or textarea in frame or in iframe
*
* if we find nothing or there are no frames focus on first input or
* text area
*/
doc = webkit_web_view_get_dom_document(t->wv);
/* get frames */
fl = webkit_dom_document_get_elements_by_tag_name(doc, "frame");
fl_count = webkit_dom_node_list_get_length(fl);
/* get iframes */
ifl = webkit_dom_document_get_elements_by_tag_name(doc, "iframe");
ifl_count = webkit_dom_node_list_get_length(ifl);
/* walk frames and look for a text input */
for (i = 0; i < fl_count; i++) {
n = webkit_dom_node_list_item(fl, i);
frame = (WebKitDOMHTMLFrameElement*)n;
doc = webkit_dom_html_frame_element_get_content_document(frame);
if (focus_input_document(t, doc)) {
rv = 1;
goto done;
}
}
/* walk iframes and look for a text input */
for (i = 0; i < ifl_count; i++) {
n = webkit_dom_node_list_item(ifl, i);
iframe = (WebKitDOMHTMLIFrameElement*)n;
doc = webkit_dom_html_iframe_element_get_content_document(iframe);
if (focus_input_document(t, doc)) {
rv = 1;
goto done;
}
}
/* if we made it here nothing got focused so use normal heuristic */
if (focus_input_document(t, webkit_web_view_get_dom_document(t->wv))) {
rv = 1;
goto done;
}
done:
if (fl)
g_object_unref(fl);
if (ifl)
g_object_unref(ifl);
return (rv);
}
