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/*
* Copyright (c) 2011 Marco Peereboom <marco@peereboom.us>
* Copyright (c) 2012, 2013 Josh Rickmar <jrick@devio.us>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <xombrero.h>
#if WEBKIT_CHECK_VERSION(1, 5, 0)
/* we got the DOM API we need */
void
focus_body(WebKitDOMDocument *doc)
{
WebKitDOMNodeList *body = NULL;
WebKitDOMNode *n;
int i;
body = webkit_dom_document_get_elements_by_tag_name(doc, "body");
for (i = 0; i < webkit_dom_node_list_get_length(body); ++i) {
n = webkit_dom_node_list_item(body, i);
webkit_dom_element_focus((WebKitDOMElement *)n);
#if WEBKIT_CHECK_VERSION(1, 8, 0)
webkit_dom_html_element_click((WebKitDOMHTMLElement *)n);
#endif
break;
}
}
int
node_is_valid_entry(WebKitDOMNode *n)
{
if (n == NULL)
return (FALSE);
if (WEBKIT_DOM_IS_HTML_INPUT_ELEMENT(n) &&
webkit_dom_html_input_element_check_validity(
(WebKitDOMHTMLInputElement *)n))
return (TRUE);
if (WEBKIT_DOM_IS_HTML_TEXT_AREA_ELEMENT(n) &&
webkit_dom_html_text_area_element_check_validity(
(WebKitDOMHTMLTextAreaElement *)n))
return (TRUE);
return (FALSE);
}
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_strcmp0("text", es) && g_strcmp0("password",es)) ||
webkit_dom_html_input_element_get_disabled(in)) {
/* skip not text */
g_free(es);
continue;
}
webkit_dom_element_focus((WebKitDOMElement*)in);
#if WEBKIT_CHECK_VERSION(1, 8, 0)
webkit_dom_html_element_click((WebKitDOMHTMLElement*)in);
#endif
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);
#if WEBKIT_CHECK_VERSION(1, 8, 0)
webkit_dom_html_element_click((WebKitDOMHTMLElement*)ta);
#endif
rv = 1; /* found */
goto done;
}
done:
if (input)
g_object_unref(input);
if (textarea)
g_object_unref(textarea);
return (rv);
}
char *
get_element_text(WebKitDOMNode *n)
{
if (WEBKIT_DOM_IS_HTML_INPUT_ELEMENT(n))
return (g_strdup(webkit_dom_html_input_element_get_value(
(WebKitDOMHTMLInputElement *)n)));
else if (WEBKIT_DOM_IS_HTML_TEXT_AREA_ELEMENT(n))
return (g_strdup(webkit_dom_html_text_area_element_get_value(
(WebKitDOMHTMLTextAreaElement *)n)));
return (NULL);
}
int
focus_input(struct tab *t)
{
WebKitDOMDocument *doc;
WebKitDOMNode *n;
WebKitDOMNodeList *fl = NULL, *ifl = NULL;
WebKitDOMElement *a;
int i, fl_count, ifl_count, rv = 0; /* not found */
WebKitDOMHTMLFrameElement *frame;
WebKitDOMHTMLIFrameElement *iframe;
/*
* Here is what we are doing:
*
* If a textbox is already focused, leave it alone.
*
* Try the tab's previous active entry, for example if it was set by
* some javascript when the page loaded.
*
* 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);
#if WEBKIT_CHECK_VERSION(2, 0, 0)
/* This check is broken on old webkit */
if (!WEBKIT_DOM_IS_HTML_DOCUMENT(doc)) {
show_oops(t, "%s: DOM node is not a valid HTML document",
__func__);
goto done;
}
#endif
/* try current active element */
a = webkit_dom_html_document_get_active_element(
(WebKitDOMHTMLDocument*)doc);
if (node_is_valid_entry((WebKitDOMNode *)a)) {
rv = 1; /* found */
goto done;
}
/* try previous active element */
if (node_is_valid_entry((WebKitDOMNode *)t->active)) {
webkit_dom_element_focus((WebKitDOMElement*)t->active);
#if WEBKIT_CHECK_VERSION(1, 8, 0)
webkit_dom_html_element_click((WebKitDOMHTMLElement*)t->active);
#endif
rv = 1; /* found */
goto done;
} else {
if (t->active)
g_object_unref(t->active);
t->active = NULL;
if (t->active_text) {
g_free(t->active_text);
t->active_text = NULL;
}
}
/* 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; /* focus */
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; /* found */
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; /* found */
done:
if (fl)
g_object_unref(fl);
if (ifl)
g_object_unref(ifl);
return (rv);
}
int
dom_is_input(struct tab *t, char **text)
{
WebKitDOMDocument *doc;
WebKitDOMElement *a;
WebKitDOMHTMLElement *aa;
WebKitDOMHTMLObjectElement *object;
WebKitDOMHTMLFrameElement *frame;
WebKitDOMHTMLIFrameElement *iframe;
/* proof positive that OO is stupid */
doc = webkit_web_view_get_dom_document(t->wv);
/* unwind frames and iframes until the cows come home */
for (;;) {
#if WEBKIT_CHECK_VERSION(2, 0, 0)
if (!WEBKIT_DOM_IS_HTML_DOCUMENT(doc))
return (0);
#endif
a = webkit_dom_html_document_get_active_element(
(WebKitDOMHTMLDocument*)doc);
if (a == NULL)
return (0);
frame = (WebKitDOMHTMLFrameElement *)a;
if (WEBKIT_DOM_IS_HTML_FRAME_ELEMENT(frame)) {
doc = webkit_dom_html_frame_element_get_content_document(
frame);
continue;
}
iframe = (WebKitDOMHTMLIFrameElement *)a;
if (WEBKIT_DOM_IS_HTML_IFRAME_ELEMENT(iframe)) {
doc = webkit_dom_html_iframe_element_get_content_document(
iframe);
continue;
}
object = (WebKitDOMHTMLObjectElement *)a;
if (WEBKIT_DOM_IS_HTML_OBJECT_ELEMENT(object)) {
doc = webkit_dom_html_object_element_get_content_document(
object);
continue;
}
/*
* I think this is a total hack because this property isn't
* set for textareas or input however, it is set for jquery
* textareas that do rich text. Since this works around issues
* in RT we'll simply keep it!
*
* This might break some other stuff but for now it helps.
*/
aa = (WebKitDOMHTMLElement*)a;
if (WEBKIT_DOM_IS_HTML_ELEMENT(aa) &&
webkit_dom_html_element_get_is_content_editable(aa)) {
if (t->active == NULL) {
t->active = a;
g_object_ref(t->active);
}
*text = get_element_text((WebKitDOMNode *)a);
if (t->active_text == NULL)
t->active_text = g_strdup(*text);
return (1);
}
break;
}
if (a == NULL)
return (0);
if (node_is_valid_entry((WebKitDOMNode *)a)) {
if (!node_is_valid_entry((WebKitDOMNode *)t->active)) {
if (t->active)
g_object_unref(t->active);
t->active = NULL;
if (t->active_text) {
g_free(t->active_text);
t->active_text = NULL;
}
}
if (t->active == NULL) {
t->active = a;
g_object_ref(t->active);
}
*text = get_element_text((WebKitDOMNode *)a);
if (t->active_text == NULL)
t->active_text = g_strdup(*text);
return (1);
}
return (0);
}
void *
input_check_mode(struct tab *t)
{
char *text = NULL;
if (dom_is_input(t, &text)) {
t->mode = XT_MODE_INSERT;
return (t->active);
} else
return (NULL);
}
int
command_mode(struct tab *t, struct karg *args)
{
WebKitDOMDocument *doc;
WebKitDOMElement *a;
if (args->i == XT_MODE_COMMAND) {
doc = webkit_web_view_get_dom_document(t->wv);
#if WEBKIT_CHECK_VERSION(2, 0, 0)
if (!WEBKIT_DOM_IS_HTML_DOCUMENT(doc)) {
show_oops(t, "%s: DOM node is not a valid HTML "
"document", __func__);
return (XT_CB_HANDLED);
}
#endif
a = webkit_dom_html_document_get_active_element(
(WebKitDOMHTMLDocument *)doc);
if (a) {
webkit_dom_element_blur(a);
focus_body(doc);
}
t->mode = XT_MODE_COMMAND;
} else if (args->i == XT_MODE_INSERT && focus_input(t))
t->mode = XT_MODE_INSERT;
else if (args->i == XT_MODE_HINT || args->i == XT_MODE_PASSTHROUGH)
t->mode = args->i;
if (!node_is_valid_entry((WebKitDOMNode *)t->active)) {
if (t->active)
g_object_unref(t->active);
t->active = NULL;
if (t->active_text) {
g_free(t->active_text);
t->active_text = NULL;
}
}
return (XT_CB_HANDLED);
}
void
input_autofocus(struct tab *t)
{
struct karg args = {0};
char *text = NULL;
if (autofocus_onload &&
t->tab_id == gtk_notebook_get_current_page(notebook)) {
if (focus_input(t))
t->mode = XT_MODE_INSERT;
else
t->mode = XT_MODE_COMMAND;
} else {
if (dom_is_input(t, &text)) {
if (text != NULL && g_strcmp0(text, t->active_text))
args.i = XT_MODE_INSERT;
else
args.i = XT_MODE_COMMAND;
} else
args.i = XT_MODE_COMMAND;
command_mode(t, &args);
}
if (text)
g_free(text);
}
#else /* WEBKIT_CHECK_VERSION */
/* incomplete DOM API */
/*
* XXX
* note that we can't check the return value of run_script so we
* have to assume that the command worked; this may leave you in
* insertmode when in fact you shouldn't be
*/
void
input_autofocus(struct tab *t)
{
if (autofocus_onload &&
t->tab_id == gtk_notebook_get_current_page(notebook)) {
run_script(t, "hints.focusInput();");
t->mode = XT_MODE_INSERT;
} else {
run_script(t, "hints.clearFocus();");
t->mode = XT_MODE_COMMAND;
}
}
void *
input_check_mode(struct tab *t)
{
return (NULL);
}
int
command_mode(struct tab *t, struct karg *args)
{
if (args->i == XT_MODE_COMMAND) {
run_script(t, "hints.clearFocus();");
t->mode = XT_MODE_COMMAND;
} else {
run_script(t, "hints.focusInput();");
t->mode = XT_MODE_INSERT;
}
return (XT_CB_HANDLED);
}
#endif
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