mirror of
https://github.com/rkd77/elinks.git
synced 2024-06-27 01:25:34 +00:00
[js] jsGetElementsByName
This commit is contained in:
Witold Filipczyk
parent
a8e27fc730
commit
3e30d82fb4
|
|
@ -463,12 +463,14 @@ static bool document_write(JSContext *ctx, unsigned int argc, JS::Value *rval);
|
|||
static bool document_writeln(JSContext *ctx, unsigned int argc, JS::Value *rval);
|
||||
static bool document_replace(JSContext *ctx, unsigned int argc, JS::Value *rval);
|
||||
static bool document_getElementById(JSContext *ctx, unsigned int argc, JS::Value *rval);
|
||||
static bool document_getElementByName(JSContext *ctx, unsigned int argc, JS::Value *rval);
|
||||
|
||||
const spidermonkeyFunctionSpec document_funcs[] = {
|
||||
{ "write", document_write, 1 },
|
||||
{ "writeln", document_writeln, 1 },
|
||||
{ "replace", document_replace, 1 },
|
||||
{ "getElementById", document_getElementById, 1 },
|
||||
{ "getElementsByName", document_getElementByName, 1 },
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
|
|
@ -709,7 +711,6 @@ document_parse(struct document *document)
|
|||
return (void *)root;
|
||||
}
|
||||
|
||||
|
||||
static bool
|
||||
document_getElementById(JSContext *ctx, unsigned int argc, JS::Value *vp)
|
||||
{
|
||||
|
|
@ -766,3 +767,63 @@ document_getElementById(JSContext *ctx, unsigned int argc, JS::Value *vp)
|
|||
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool
|
||||
document_getElementByName(JSContext *ctx, unsigned int argc, JS::Value *vp)
|
||||
{
|
||||
JS::CallArgs args = CallArgsFromVp(argc, vp);
|
||||
|
||||
if (argc != 1) {
|
||||
args.rval().setBoolean(false);
|
||||
return true;
|
||||
}
|
||||
|
||||
JSCompartment *comp = js::GetContextCompartment(ctx);
|
||||
struct ecmascript_interpreter *interpreter = JS_GetCompartmentPrivate(comp);
|
||||
struct document_view *doc_view = interpreter->vs->doc_view;
|
||||
struct document *document = doc_view->document;
|
||||
|
||||
if (!document->dom) {
|
||||
document->dom = document_parse(document);
|
||||
}
|
||||
|
||||
if (!document->dom) {
|
||||
args.rval().setNull();
|
||||
return true;
|
||||
}
|
||||
|
||||
xmlpp::Element* root = (xmlpp::Element *)document->dom;
|
||||
|
||||
struct string idstr;
|
||||
|
||||
init_string(&idstr);
|
||||
jshandle_value_to_char_string(&idstr, ctx, &args[0]);
|
||||
std::string id = idstr.source;
|
||||
|
||||
std::string xpath = "//*[@id=\"";
|
||||
xpath += id;
|
||||
xpath += "\"]|//*[@name=\"";
|
||||
xpath += id;
|
||||
xpath += "\"]";
|
||||
|
||||
done_string(&idstr);
|
||||
|
||||
xmlpp::Node::NodeSet *elements = new xmlpp::Node::NodeSet;
|
||||
|
||||
*elements = root->find(xpath);
|
||||
|
||||
if (elements->size() == 0) {
|
||||
args.rval().setNull();
|
||||
return true;
|
||||
}
|
||||
|
||||
JSObject *elem = getCollection(ctx, elements);
|
||||
|
||||
if (elem) {
|
||||
args.rval().setObject(*elem);
|
||||
} else {
|
||||
args.rval().setNull();
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -584,7 +584,6 @@ element_get_property_title(JSContext *ctx, unsigned int argc, JS::Value *vp)
|
|||
return true;
|
||||
}
|
||||
|
||||
|
||||
static int was_el = 0;
|
||||
|
||||
static void
|
||||
|
|
@ -1102,3 +1101,245 @@ getElement(JSContext *ctx, void *node)
|
|||
|
||||
return el;
|
||||
}
|
||||
|
||||
static bool htmlCollection_item(JSContext *ctx, unsigned int argc, JS::Value *rval);
|
||||
static bool htmlCollection_namedItem(JSContext *ctx, unsigned int argc, JS::Value *rval);
|
||||
static bool htmlCollection_get_property(JSContext *ctx, JS::HandleObject hobj, JS::HandleId hid, JS::MutableHandleValue hvp);
|
||||
static bool htmlCollection_item2(JSContext *ctx, JS::HandleObject hobj, int index, JS::MutableHandleValue hvp);
|
||||
static bool htmlCollection_namedItem2(JSContext *ctx, JS::HandleObject hobj, char *str, JS::MutableHandleValue hvp);
|
||||
|
||||
JSClassOps htmlCollection_ops = {
|
||||
JS_PropertyStub, nullptr,
|
||||
htmlCollection_get_property, JS_StrictPropertyStub,
|
||||
nullptr, nullptr, nullptr, nullptr
|
||||
};
|
||||
|
||||
JSClass htmlCollection_class = {
|
||||
"htmlCollection",
|
||||
JSCLASS_HAS_PRIVATE,
|
||||
&htmlCollection_ops
|
||||
};
|
||||
|
||||
static const spidermonkeyFunctionSpec htmlCollection_funcs[] = {
|
||||
{ "item", htmlCollection_item, 1 },
|
||||
{ "namedItem", htmlCollection_namedItem, 1 },
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
static bool htmlCollection_get_property_length(JSContext *ctx, unsigned int argc, JS::Value *vp);
|
||||
|
||||
static JSPropertySpec htmlCollection_props[] = {
|
||||
JS_PSG("length", htmlCollection_get_property_length, JSPROP_ENUMERATE),
|
||||
JS_PS_END
|
||||
};
|
||||
|
||||
static bool
|
||||
htmlCollection_get_property_length(JSContext *ctx, unsigned int argc, JS::Value *vp)
|
||||
{
|
||||
JS::CallArgs args = CallArgsFromVp(argc, vp);
|
||||
JS::RootedObject hobj(ctx, &args.thisv().toObject());
|
||||
|
||||
struct view_state *vs;
|
||||
JSCompartment *comp = js::GetContextCompartment(ctx);
|
||||
|
||||
if (!comp) {
|
||||
return false;
|
||||
}
|
||||
|
||||
struct ecmascript_interpreter *interpreter = JS_GetCompartmentPrivate(comp);
|
||||
|
||||
/* This can be called if @obj if not itself an instance of the
|
||||
* appropriate class but has one in its prototype chain. Fail
|
||||
* such calls. */
|
||||
if (!JS_InstanceOf(ctx, hobj, &htmlCollection_class, NULL))
|
||||
return false;
|
||||
|
||||
vs = interpreter->vs;
|
||||
if (!vs) {
|
||||
return false;
|
||||
}
|
||||
|
||||
xmlpp::Node::NodeSet *ns = JS_GetPrivate(hobj);
|
||||
|
||||
if (!ns) {
|
||||
args.rval().setInt32(0);
|
||||
return true;
|
||||
}
|
||||
|
||||
args.rval().setInt32(ns->size());
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool
|
||||
htmlCollection_item(JSContext *ctx, unsigned int argc, JS::Value *vp)
|
||||
{
|
||||
JS::Value val;
|
||||
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
|
||||
JS::RootedObject hobj(ctx, &args.thisv().toObject());
|
||||
JS::RootedValue rval(ctx, val);
|
||||
|
||||
int index = args[0].toInt32();
|
||||
bool ret = htmlCollection_item2(ctx, hobj, index, &rval);
|
||||
args.rval().set(rval);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static bool
|
||||
htmlCollection_namedItem(JSContext *ctx, unsigned int argc, JS::Value *vp)
|
||||
{
|
||||
JS::Value val;
|
||||
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
|
||||
JS::RootedObject hobj(ctx, &args.thisv().toObject());
|
||||
JS::RootedValue rval(ctx, val);
|
||||
|
||||
char *str = JS_EncodeString(ctx, args[0].toString());
|
||||
bool ret = htmlCollection_namedItem2(ctx, hobj, str, &rval);
|
||||
args.rval().set(rval);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static bool
|
||||
htmlCollection_item2(JSContext *ctx, JS::HandleObject hobj, int index, JS::MutableHandleValue hvp)
|
||||
{
|
||||
JSCompartment *comp = js::GetContextCompartment(ctx);
|
||||
|
||||
if (!comp) {
|
||||
return false;
|
||||
}
|
||||
|
||||
struct ecmascript_interpreter *interpreter = JS_GetCompartmentPrivate(comp);
|
||||
|
||||
if (!JS_InstanceOf(ctx, hobj, &htmlCollection_class, NULL)) return false;
|
||||
|
||||
hvp.setUndefined();
|
||||
|
||||
xmlpp::Node::NodeSet *ns = JS_GetPrivate(hobj);
|
||||
|
||||
if (!ns) {
|
||||
return true;
|
||||
}
|
||||
|
||||
xmlpp::Element *element;
|
||||
|
||||
try {
|
||||
element = ns->at(index);
|
||||
} catch (std::out_of_range e) { return true;}
|
||||
|
||||
if (!element) {
|
||||
return true;
|
||||
}
|
||||
|
||||
JSObject *obj = getElement(ctx, element);
|
||||
hvp.setObject(*obj);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool
|
||||
htmlCollection_namedItem2(JSContext *ctx, JS::HandleObject hobj, char *str, JS::MutableHandleValue hvp)
|
||||
{
|
||||
JSCompartment *comp = js::GetContextCompartment(ctx);
|
||||
|
||||
if (!comp) {
|
||||
return false;
|
||||
}
|
||||
|
||||
struct ecmascript_interpreter *interpreter = JS_GetCompartmentPrivate(comp);
|
||||
|
||||
if (!JS_InstanceOf(ctx, hobj, &htmlCollection_class, NULL))
|
||||
return false;
|
||||
|
||||
xmlpp::Node::NodeSet *ns = JS_GetPrivate(hobj);
|
||||
|
||||
hvp.setUndefined();
|
||||
|
||||
if (!ns) {
|
||||
return true;
|
||||
}
|
||||
|
||||
std::string name = str;
|
||||
|
||||
auto it = ns->begin();
|
||||
auto end = ns->end();
|
||||
|
||||
for (; it != end; ++it) {
|
||||
const auto element = dynamic_cast<const xmlpp::Element*>(*it);
|
||||
|
||||
if (!element) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (name == element->get_attribute_value("id")
|
||||
|| name == element->get_attribute_value("name")) {
|
||||
JSObject *obj = getElement(ctx, element);
|
||||
hvp.setObject(*obj);
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool
|
||||
htmlCollection_get_property(JSContext *ctx, JS::HandleObject hobj, JS::HandleId hid, JS::MutableHandleValue hvp)
|
||||
{
|
||||
jsid id = hid.get();
|
||||
struct view_state *vs;
|
||||
JS::Value idval;
|
||||
|
||||
JSCompartment *comp = js::GetContextCompartment(ctx);
|
||||
|
||||
if (!comp) {
|
||||
return false;
|
||||
}
|
||||
|
||||
struct ecmascript_interpreter *interpreter = JS_GetCompartmentPrivate(comp);
|
||||
|
||||
/* This can be called if @obj if not itself an instance of the
|
||||
* appropriate class but has one in its prototype chain. Fail
|
||||
* such calls. */
|
||||
if (!JS_InstanceOf(ctx, hobj, &htmlCollection_class, NULL)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (JSID_IS_INT(id)) {
|
||||
JS::RootedValue r_idval(ctx, idval);
|
||||
JS_IdToValue(ctx, id, &r_idval);
|
||||
int index = r_idval.toInt32();
|
||||
return htmlCollection_item2(ctx, hobj, index, hvp);
|
||||
}
|
||||
|
||||
#if 0
|
||||
if (JSID_IS_STRING(id)) {
|
||||
JS::RootedValue r_idval(ctx, idval);
|
||||
JS_IdToValue(ctx, id, &r_idval);
|
||||
char *string = JS_EncodeString(ctx, r_idval.toString());
|
||||
|
||||
return htmlCollection_namedItem2(ctx, hobj, string, hvp);
|
||||
}
|
||||
#endif
|
||||
|
||||
return JS_PropertyStub(ctx, hobj, hid, hvp);
|
||||
}
|
||||
|
||||
JSObject *
|
||||
getCollection(JSContext *ctx, void *node)
|
||||
{
|
||||
JSObject *el = JS_NewObject(ctx, &htmlCollection_class);
|
||||
|
||||
if (!el) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
JS::RootedObject r_el(ctx, el);
|
||||
|
||||
JS_DefineProperties(ctx, r_el, (JSPropertySpec *) htmlCollection_props);
|
||||
spidermonkey_DefineFunctions(ctx, el, htmlCollection_funcs);
|
||||
|
||||
JS_SetPrivate(el, node);
|
||||
|
||||
return el;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -10,5 +10,6 @@ extern JSClass element_class;
|
|||
extern JSPropertySpec element_props[];
|
||||
|
||||
JSObject *getElement(JSContext *ctx, void *node);
|
||||
JSObject *getCollection(JSContext *ctx, void *node);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
22
test/ecmascript/getElementsByName.html
Normal file
22
test/ecmascript/getElementsByName.html
Normal file
|
|
@ -0,0 +1,22 @@
|
|||
<!DOCTYPE html>
|
||||
<html>
|
||||
<body>
|
||||
|
||||
First Name: <input name="fname" type="text" value="Michael"><br>
|
||||
First Name: <input name="fname" type="text" value="Doug">
|
||||
|
||||
<p>Click the button to get the tag name of the first element in the document that has a name attribute with the value "fname".</p>
|
||||
|
||||
<button onclick="myFunction()">Try it</button>
|
||||
|
||||
<p id="demo"></p>
|
||||
|
||||
<script>
|
||||
function myFunction() {
|
||||
var x = document.getElementsByName("fname").item(1).outerHTML;
|
||||
alert(x);
|
||||
}
|
||||
</script>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
Loading…
Reference in New Issue
Block a user