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ext.c
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ext.c
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/*
Copyright 2017-2020 [email protected]
This file is part of wyeb.
wyeb is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
wyeb is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with wyeb. If not, see <http://www.gnu.org/licenses/>.
*/
//Make sure JSC is 4 times slower and lacks features we using
//So even JSC is true, there are the DOM funcs left and slow
#if ! JSC + 0
#undef JSC
#define JSC 0
#endif
#if JSC
#define let JSCValue *
#else
#define let void *
#endif
#include <ctype.h>
#include <webkit2/webkit-web-extension.h>
typedef struct _WP {
WebKitWebPage *kit;
#if JSC
WebKitFrame *mf;
#endif
bool hint;
char *apkeys;
guint hintcb;
char lasttype;
char *lasthintkeys;
char *rangestart;
bool script;
GSList *black;
GSList *white;
GSList *emitters;
int pagereq;
bool redirected;
char **refreq;
//conf
GObject *seto;
char *lasturiconf;
char *lastreset;
char *overset;
bool setagent;
bool setagentprev;
GMainLoop *sync;
} Page;
#include "general.c"
static void loadconf()
{
if (!confpath)
confpath = path2conf("main.conf");
GKeyFile *new = g_key_file_new();
g_key_file_load_from_file(new, confpath,G_KEY_FILE_NONE, NULL);
initconf(new);
}
static void resetconf(Page *page, const char *uri, bool force)
{
page->setagentprev = page->setagent && !force;
page->setagent = false;
_resetconf(page, uri, force);
g_object_set_data(G_OBJECT(page->kit), "adblock",
GINT_TO_POINTER(getsetbool(page, "adblock") ? 'y' : 'n'));
}
static GPtrArray *pages;
static void freepage(Page *page)
{
g_free(page->apkeys);
if (page->hintcb)
g_source_remove(page->hintcb);
g_free(page->lasthintkeys);
g_free(page->rangestart);
g_slist_free_full(page->black, g_free);
g_slist_free_full(page->white, g_free);
g_slist_free_full(page->emitters, g_object_unref);
g_strfreev(page->refreq);
g_object_unref(page->seto);
g_free(page->lasturiconf);
g_free(page->lastreset);
g_free(page->overset);
g_ptr_array_remove(pages, page);
g_free(page);
}
typedef struct {
bool ok;
bool insight;
let elm;
double fx;
double fy;
double x;
double y;
double w;
double h;
double zi;
} Elm;
static const char *clicktags[] = {
"INPUT", "TEXTAREA", "SELECT", "BUTTON", "A", "AREA", NULL};
static const char *linktags[] = {
"A", "AREA", NULL};
static const char *uritags[] = {
"A", "AREA", "IMG", "VIDEO", "AUDIO", NULL};
static const char *texttags[] = {
"INPUT", "TEXTAREA", NULL};
static const char *inputtags[] = {
"INPUT", "TEXTAREA", "SELECT", NULL};
// input types
/*
static const char *itext[] = { //no name is too
"search", "text", "url", "email", "password", "tel", NULL
};
static const char *ilimitedtext[] = {
"month", "number", "time", "week", "date", "datetime-local", NULL
};
*/
static const char *inottext[] = {
"color", "file", "radio", "range", "checkbox", "button", "reset", "submit",
// unknown
"image", //to be submit
// not focus
"hidden",
NULL
};
#if JSC
static void __attribute__((constructor)) ext22()
{ DD("this is ext22\n"); }
static JSCValue *pagejsv(Page *page, char *name)
{
return jsc_context_get_value(webkit_frame_get_js_context(page->mf), name);
}
static JSCValue *sdoc(Page *page)
{
static JSCValue *s;
if (s) g_object_unref(s);
return s = pagejsv(page, "document");
}
#define invoker(...) jsc_value_object_invoke_method(__VA_ARGS__, G_TYPE_NONE)
#define invoke(...) g_object_unref(invoker(__VA_ARGS__))
#define isdef(v) (!jsc_value_is_undefined(v) && !jsc_value_is_null(v))
#define aB(s) G_TYPE_BOOLEAN, s
#define aL(s) G_TYPE_LONG, s
#define aD(s) G_TYPE_DOUBLE, s
#define aS(s) G_TYPE_STRING, s
#define aJ(s) JSC_TYPE_VALUE, s
static let prop(let v, char *name)
{
let retv = jsc_value_object_get_property(v, name);
if (isdef(retv)) return retv;
g_object_unref(retv);
return NULL;
}
static double propd(let v, char *name)
{
let retv = jsc_value_object_get_property(v, name);
double ret = jsc_value_to_double(retv);
g_object_unref(retv);
return ret;
}
static char *props(let v, char *name)
{
let retv = jsc_value_object_get_property(v, name);
char *ret = isdef(retv) ? jsc_value_to_string(retv) : NULL;
g_object_unref(retv);
return ret;
}
static void setprop_s(let v, char *name, char *data)
{
let dv = jsc_value_new_string(jsc_value_get_context(v), data);
jsc_value_object_set_property(v, name, dv);
g_object_unref(dv);
}
static char *attr(let v, char *name)
{
let retv = invoker(v, "getAttribute", aS(name));
char *ret = isdef(retv) ? jsc_value_to_string(retv) : NULL;
g_object_unref(retv);
return ret;
}
static void __attribute__((unused)) proplist(JSCValue *v)
{
if (jsc_value_is_undefined(v))
{
DD(undefined value)
return;
}
char **ps = jsc_value_object_enumerate_properties(v);
if (ps)
for (char **pr = ps; *pr; pr++)
D(p %s, *pr)
else
DD(no props)
g_strfreev(ps);
}
#define jscunref(v) if (v) g_object_unref(v)
#define docelm(v) prop(v, "documentElement")
#define focuselm(t) invoke(t, "focus")
#define getelms(doc, name) invoker(doc, "getElementsByTagName", aS(name))
#define defaultview(doc) prop(doc, "defaultView")
//JSC
#else
//DOM
#define defaultview(doc) webkit_dom_document_get_default_view(doc)
#define getelms(doc, name) \
webkit_dom_document_get_elements_by_tag_name_as_html_collection(doc, name)
#define focuselm(t) webkit_dom_element_focus(t)
#define docelm(v) webkit_dom_document_get_document_element(v)
#define jscunref(v) ;
#define attr webkit_dom_element_get_attribute
#define sdoc(v) webkit_web_page_get_dom_document(v->kit)
#endif
static void clearelm(Elm *elm)
{
if (elm->elm) g_object_unref(elm->elm);
}
static char *stag(let elm)
{
if (!elm) return NULL;
static char *name;
g_free(name);
#if JSC
name = props(elm, "tagName");
#else
name = webkit_dom_element_get_tag_name(elm);
#endif
//normally name is uppercase letters but occasionally lower
if (name) for (char *c = name; *c; c++)
*c = g_ascii_toupper(*c);
return name;
}
static bool attrb(let v, char *name)
{
return !g_strcmp0(sfree(attr(v, name)), "true");
}
static let idx(let cl, int i)
{
#if JSC
char buf[9];
snprintf(buf, 9, "%d", i);
return prop(cl, buf);
#else
return webkit_dom_html_collection_item(cl, i);
#endif
// let retv = jsc_value_object_get_property_at_index(cl, i);
// if (isdef(retv))
// return retv;
// g_object_unref(retv);
// return NULL;
}
static let activeelm(let doc)
{
#if JSC
let te = prop(doc, "activeElement");
#else
let te = webkit_dom_document_get_active_element(doc);
#endif
if (te && (!g_strcmp0(stag(te), "IFRAME") || !g_strcmp0(stag(te), "BODY")))
{
jscunref(te);
return NULL;
}
return te;
}
static void recttovals(let rect, double *x, double *y, double *w, double *h)
{
#if JSC
*x = propd(rect, "left");
*y = propd(rect, "top");
*w = propd(rect, "width");
*h = propd(rect, "height");
#else
*x = webkit_dom_client_rect_get_left(rect);
*y = webkit_dom_client_rect_get_top(rect);
*w = webkit_dom_client_rect_get_width(rect);
*h = webkit_dom_client_rect_get_height(rect);
#endif
}
//@misc
static bool send(Page *page, char *action, const char *arg)
{
//D(send to main %s, ss)
return ipcsend("main", sfree(g_strdup_printf(
"%"G_GUINT64_FORMAT":%s:%s",
webkit_web_page_get_id(page->kit), action, arg ?: "")));
}
static bool isins(const char **ary, char *val)
{
if (!val) return false;
for (;*ary; ary++)
if (!strcmp(val, *ary)) return true;
return false;
}
static bool isinput(let te)
{
char *tag = stag(te);
if (isins(inputtags, tag))
{
if (strcmp(tag, "INPUT"))
return true;
else if (!isins(inottext, sfree(attr(te, "TYPE"))))
return true;
}
return false;
}
static char *tofull(let te, char *uri)
{
if (!te || !uri) return NULL;
#if JSC
char *base = props(te, "baseURI");
#else
char *base = webkit_dom_node_get_base_uri((WebKitDOMNode *)te);
#endif
char *ret = g_uri_resolve_relative(base, uri, SOUP_HTTP_URI_FLAGS, NULL);
g_free(base);
return ret;
}
//func is void *(*func)(let doc, Page *page)
static void *_eachframes(let doc, Page *page, void *func)
{
void *ret;
if ((ret = ((void *(*)(let doc, Page *page))func)(doc, page))) return ret;
let cl = getelms(doc, "IFRAME");
let te;
for (int i = 0; (te = idx(cl, i)); i++)
{
#if JSC
WebKitDOMHTMLIFrameElement *tfe = (void *)webkit_dom_node_for_js_value(te);
let fdoc = webkit_frame_get_js_value_for_dom_object(page->mf,
(void *)webkit_dom_html_iframe_element_get_content_document(tfe));
#else
let fdoc = webkit_dom_html_iframe_element_get_content_document(te);
#endif
ret = _eachframes(fdoc, page, func);
jscunref(fdoc);
jscunref(te);
if (ret) break;
}
g_object_unref(cl);
return ret;
}
static void *eachframes(Page *page, void *func)
{
return _eachframes(sdoc(page), page, func);
}
//@whiteblack
typedef struct {
int white;
regex_t reg;
} Wb;
static void clearwb(Wb *wb)
{
regfree(&wb->reg);
g_free(wb);
}
static GSList *wblist;
static char *wbpath;
static void setwblist(bool reload)
{
if (wblist)
g_slist_free_full(wblist, (GDestroyNotify)clearwb);
wblist = NULL;
if (!g_file_test(wbpath, G_FILE_TEST_EXISTS)) return;
GIOChannel *io = g_io_channel_new_file(wbpath, "r", NULL);
char *line;
while (g_io_channel_read_line(io, &line, NULL, NULL, NULL)
== G_IO_STATUS_NORMAL)
{
if (*line == 'w' || *line =='b')
{
g_strchomp(line);
Wb *wb = g_new0(Wb, 1);
if (regcomp(&wb->reg, line + 1, REG_EXTENDED | REG_NOSUB))
{
g_free(line);
g_free(wb);
continue;
}
wb->white = *line == 'w' ? 1 : 0;
wblist = g_slist_prepend(wblist, wb);
}
g_free(line);
}
g_io_channel_unref(io);
if (reload)
send(*pages->pdata, "_reloadlast", NULL);
}
static int checkwb(const char *uri) // -1 no result, 0 black, 1 white;
{
if (!wblist) return -1;
for (GSList *next = wblist; next; next = next->next)
{
Wb *wb = next->data;
if (regexec(&wb->reg, uri, 0, NULL, 0) == 0)
return wb->white;
}
return -1;
}
static void addwhite(Page *page, const char *uri)
{
//D(blocked %s, uri)
if (getsetbool(page, "showblocked"))
send(page, "_blocked", uri);
page->white = g_slist_prepend(page->white, g_strdup(uri));
}
static void addblack(Page *page, const char *uri)
{
page->black = g_slist_prepend(page->black, g_strdup(uri));
}
static void showwhite(Page *page, bool white)
{
GSList *list = white ? page->white : page->black;
if (!list)
{
send(page, "showmsg", "No List");
return;
}
FILE *f = fopen(wbpath, "a");
if (!f) return;
if (white)
send(page, "wbnoreload", NULL);
char pre = white ? 'w' : 'b';
fprintf(f, "\n# %s in %s\n",
white ? "blocked" : "loaded",
webkit_web_page_get_uri(page->kit));
list = g_slist_reverse(g_slist_copy(list));
for (GSList *next = list; next; next = next->next)
fputs(sfree(g_strdup_printf(
"%c^%s\n", pre, sfree(regesc(next->data)))), f);
g_slist_free(list);
fclose(f);
send(page, "openeditor", wbpath);
}
//@textlink
static let tldoc;
#if JSC
static let tlelm;
#else
static WebKitDOMHTMLTextAreaElement *tlelm;
static WebKitDOMHTMLInputElement *tlielm;
#endif
static void textlinkset(Page *page, char *path)
{
let doc = sdoc(page);
let cdoc = docelm(doc);
jscunref(cdoc);
if (tldoc != cdoc) return;
GIOChannel *io = g_io_channel_new_file(path, "r", NULL);
char *text;
g_io_channel_read_to_end(io, &text, NULL, NULL);
g_io_channel_unref(io);
#if JSC
setprop_s(tlelm, "value", text);
#else
if (tlelm)
webkit_dom_html_text_area_element_set_value(tlelm, text);
else
webkit_dom_html_input_element_set_value(tlielm, text);
#endif
g_free(text);
}
static void textlinkget(Page *page, char *path)
{
let te = eachframes(page, activeelm);
if (!te) return;
#if JSC
if (tlelm) g_object_unref(tlelm);
if (tldoc) g_object_unref(tldoc);
tlelm = NULL;
tldoc = NULL;
if (isinput(te))
tlelm = te;
#else
tlelm = NULL;
tlielm = NULL;
if (!strcmp(stag(te), "TEXTAREA"))
tlelm = (WebKitDOMHTMLTextAreaElement *)te;
else if (isinput(te))
tlielm = (WebKitDOMHTMLInputElement *)te;
#endif
else
{
send(page, "showmsg", "Not a text");
return;
}
let doc = sdoc(page);
tldoc = docelm(doc);
char *text =
#if JSC
props(tlelm, "value");
#else
tlelm ?
webkit_dom_html_text_area_element_get_value(tlelm) :
webkit_dom_html_input_element_get_value(tlielm);
#endif
GIOChannel *io = g_io_channel_new_file(path, "w", NULL);
g_io_channel_write_chars(io, text ?: "", -1, NULL, NULL);
g_io_channel_unref(io);
g_free(text);
send(page, "_textlinkon", NULL);
}
//@hinting
#if JSC
static char *getstyleval(let style, char *name)
{
char *ret = NULL;
let retv = invoker(style, "getPropertyValue", aS(name));
ret = jsc_value_to_string(retv);
g_object_unref(retv);
return ret;
}
#else
#define getstyleval webkit_dom_css_style_declaration_get_property_value
#endif
static bool styleis(let dec, char* name, char *pval)
{
char *val = getstyleval(dec, name);
bool ret = (val && !strcmp(pval, val));
g_free(val);
return ret;
}
static Elm getrect(let te)
{
Elm elm = {0};
#if JSC
let rect = invoker(te, "getBoundingClientRect");
#else
WebKitDOMClientRect *rect =
webkit_dom_element_get_bounding_client_rect(te);
#endif
recttovals(rect, &elm.x, &elm.y, &elm.w, &elm.h);
g_object_unref(rect);
return elm;
}
static void _trim(double *tx, double *tw, double *px, double *pw)
{
double right = *tx + *tw;
double pr = *px + *pw;
if (pr < right)
*tw -= right - pr;
if (*px > *tx)
{
*tw -= *px - *tx;
*tx = *px;
}
}
static char *makehintelm(Page *page, Elm *elm,
const char* text, int len, double pagex, double pagey)
{
char *tag = stag(elm->elm);
bool center = isins(uritags, tag) && !isins(linktags, tag);
// char *uri =
// attr(elm->elm, "ONCLICK") ?:
// attr(elm->elm, "HREF") ?:
// attr(elm->elm, "SRC");
GString *str = g_string_new(NULL);
#if JSC
let rects = invoker(elm->elm, "getClientRects");
let rect;
for (int i = 0; (rect = idx(rects, i)); i++)
{
#else
WebKitDOMClientRectList *rects = webkit_dom_element_get_client_rects(elm->elm);
gulong l = webkit_dom_client_rect_list_get_length(rects);
for (gulong i = 0; i < l; i++)
{
WebKitDOMClientRect *rect =
webkit_dom_client_rect_list_item(rects, i);
#endif
double x, y, w, h;
recttovals(rect, &x, &y, &w, &h);
jscunref(rect);
_trim(&x, &w, &elm->x, &elm->w);
_trim(&y, &h, &elm->y, &elm->h);
g_string_append_printf(str, "%d%6.0lf*%6.0lf*%6.0lf*%6.0lf*%3d*%d%s;",
center,
x + elm->fx,
y + elm->fy,
w,
h,
len, i == 0, text);
}
g_object_unref(rects);
char *ret = g_string_free(str, false);
// g_free(uri);
return ret;
}
static int getdigit(int len, int num)
{
int tmp = num - 1;
int digit = 1;
while ((tmp = tmp / len)) digit++;
return digit;
}
static char *makekey(char *keys, int len, int max, int tnum, int digit)
{
char ret[digit + 1];
ret[digit] = '\0';
int llen = len;
while (llen--)
if (pow(llen, digit) < max) break;
llen++;
int tmp = tnum;
for (int i = digit - 1; i >= 0; i--)
{
ret[i] = toupper(keys[tmp % llen]);
tmp = tmp / llen;
}
return g_strdup(ret);
}
static void trim(Elm *te, Elm *prect)
{
_trim(&te->x, &te->w, &prect->x, &prect->w);
_trim(&te->y, &te->h, &prect->y, &prect->h);
}
static Elm checkelm(let win, Elm *frect, Elm *prect, let te,
bool js, bool notttag)
{
let dec = NULL;
Elm ret = getrect(te);
double bottom = ret.y + ret.h;
double right = ret.x + ret.w;
if (
(ret.y < 0 && bottom < 0 ) ||
(ret.y > frect->h && bottom > frect->h) ||
(ret.x < 0 && right < 0 ) ||
(ret.x > frect->w && right > frect->w)
)
goto retfalse;
ret.insight = true;
//elms visibility hidden have size also opacity
#if JSC
dec = invoker(win, "getComputedStyle", aJ(te));
#else
dec = webkit_dom_dom_window_get_computed_style(win, te, NULL);
#endif
static char *check[][2] = {
{"visibility", "hidden"},
{"opacity" , "0"},
{"display" , "none"},
};
for (int k = 0; k < sizeof(check) / sizeof(*check); k++)
if (styleis(dec, check[k][0], check[k][1]))
goto retfalse;
ret.zi = atoi(sfree(getstyleval(dec, "z-index")));
if (ret.zi > prect->zi || styleis(dec, "position", "absolute"))
trim(&ret, frect);
else
trim(&ret, prect);
if (js && (ret.h == 0 || ret.w == 0))
goto retfalse;
if (js && notttag && !styleis(dec, "cursor", "pointer"))
goto retfalse;
g_object_unref(dec);
ret.elm = g_object_ref(te);
ret.fx = frect->fx;
ret.fy = frect->fy;
ret.ok = true;
return ret;
retfalse:
clearelm(&ret);
if (dec) g_object_unref(dec);
return ret;
}
static bool addelm(Elm *pelm, GSList **elms)
{
if (!pelm->ok) return false;
Elm *elm = g_new(Elm, 1);
*elm = *pelm;
if (*elms) for (GSList *next = *elms; next; next = next->next)
{
if (elm->zi >= ((Elm *)next->data)->zi)
{
*elms = g_slist_insert_before(*elms, next, elm);
break;
}
if (!next->next)
{
*elms = g_slist_append(*elms, elm);
break;
}
}
else
*elms = g_slist_append(*elms, elm);
return true;
}
static bool eachclick(let win, let cl,
Coms type, GSList **elms, Elm *frect, Elm *prect)
{
bool ret = false;
let te;
for (int j = 0; (te = idx(cl, j)); j++)
{
bool div = false;
char *tag = stag(te);
if (isins(clicktags, tag))
{
Elm elm = checkelm(win, frect, prect, te, true, false);
if (elm.ok)
addelm(&elm, elms);
jscunref(te);
continue;
} else if (!strcmp(tag, "DIV"))
div = true; //div is random
Elm elm = checkelm(win, frect, prect, te, true, true);
if (!elm.insight && !div && elm.h > 0)
{
jscunref(te);
continue;
}
Elm *crect = prect;
#if JSC
let ccl = prop(te, "children");
let dec = invoker(win, "getComputedStyle", aJ(te));
#else
WebKitDOMHTMLCollection *ccl = webkit_dom_element_get_children(te);
WebKitDOMCSSStyleDeclaration *dec =
webkit_dom_dom_window_get_computed_style(win, te, NULL);
#endif
jscunref(te);
if (
styleis(dec, "overflow", "hidden") ||
styleis(dec, "overflow", "scroll") ||
styleis(dec, "overflow", "auto")
)
crect = &elm;
g_object_unref(dec);
if (eachclick(win, ccl, type, elms, frect, crect))
{
ret = true;
g_object_unref(ccl);
clearelm(&elm);
continue;
}
g_object_unref(ccl);
if (elm.ok)
{
ret = true;
addelm(&elm, elms);
}
}
return ret;
}
static char *ctexttext;
static GSList *_makelist(Page *page, let doc, let win,
Coms type, GSList *elms, Elm *frect, Elm *prect)
{
const char **taglist = clicktags; //Cclick
if (type == Clink ) taglist = linktags;
if (type == Curi ) taglist = uritags;
if (type == Cspawn) taglist = uritags;
if (type == Crange) taglist = uritags;
if (type == Ctext ) taglist = texttags;
if (type == Cclick && page->script)
{
#if JSC
let body = prop(doc , "body");
let cl = prop(body, "children");
g_object_unref(body);
#else
WebKitDOMHTMLCollection *cl = webkit_dom_element_get_children(
(WebKitDOMElement *)webkit_dom_document_get_body(doc));
#endif
eachclick(win, cl, type, &elms, frect, prect);
g_object_unref(cl);
}
else for (const char **tag = taglist; *tag; tag++)
{
let cl = getelms(doc, *tag);
let te;
for (int j = 0; (te = idx(cl, j)); j++)
{
Elm elm = checkelm(win, frect, prect, te, false, false);
jscunref(te);
if (elm.ok)
{
if (type == Ctext)
{
if (!isinput(elm.elm))
{
clearelm(&elm);
continue;
}
if (ctexttext)
#if JSC
setprop_s(elm.elm, "value", ctexttext);
#else
webkit_dom_html_input_element_set_value(elm.elm, ctexttext);
#endif
focuselm(elm.elm);
clearelm(&elm);
g_object_unref(cl);
return NULL;
}
addelm(&elm, &elms);
}
}
g_object_unref(cl);
}
return elms;
}
static GSList *makelist(Page *page, let doc, let win,
Coms type, Elm *frect, GSList *elms)
{
Elm frectr = {0};
if (!frect)
{
#if JSC
frectr.w = propd(win, "innerWidth");
frectr.h = propd(win, "innerHeight");
#else
frectr.w = webkit_dom_dom_window_get_inner_width(win);
frectr.h = webkit_dom_dom_window_get_inner_height(win);
#endif
frect = &frectr;
}
Elm prect = *frect;
prect.x = prect.y = 0;
//D(rect %d %d %d %d, rect.y, rect.x, rect.h, rect.w)
elms = _makelist(page, doc, win, type, elms, frect, &prect);
let cl = getelms(doc, "IFRAME");
let te;
for (int j = 0; (te = idx(cl, j)); j++)
{
Elm cfrect = checkelm(win, frect, &prect, te, false, false);
if (cfrect.ok)
{
#if JSC
double cx = propd(te, "clientLeft");
double cy = propd(te, "clientTop");
double cw = propd(te, "clientWidth");
double ch = propd(te, "clientHeight");
#else
double cx = webkit_dom_element_get_client_left(te);
double cy = webkit_dom_element_get_client_top(te);
double cw = webkit_dom_element_get_client_width(te);
double ch = webkit_dom_element_get_client_height(te);
#endif
cfrect.w = MIN(cfrect.w - cx, cw);
cfrect.h = MIN(cfrect.h - cy, ch);
cfrect.fx += cfrect.x + cx;
cfrect.fy += cfrect.y + cy;
cfrect.x = cfrect.y = 0;
#if JSC
//some times can't get content
//let fdoc = prop(te, "contentDocument");