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[js] firstElementChild

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This commit is contained in:
Witold Filipczyk 2021-05-10 19:08:36 +02:00
parent 6798ffc8b0
commit 39c0e7679d
2 changed files with 73 additions and 0 deletions
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57
src/ecmascript/spidermonkey/element.c
View File

@ -58,6 +58,7 @@ static bool element_set_property_className(JSContext *ctx, unsigned int argc, JS
static bool element_get_property_dir(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_set_property_dir(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_get_property_firstChild(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_get_property_firstElementChild(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_get_property_id(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_set_property_id(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_get_property_innerHtml(JSContext *ctx, unsigned int argc, JS::Value *vp);
@ -90,6 +91,7 @@ JSPropertySpec element_props[] = {
JS_PSGS("className", element_get_property_className, element_set_property_className, JSPROP_ENUMERATE),
JS_PSGS("dir", element_get_property_dir, element_set_property_dir, JSPROP_ENUMERATE),
JS_PSG("firstChild", element_get_property_firstChild, JSPROP_ENUMERATE),
JS_PSG("firstElementChild", element_get_property_firstElementChild, JSPROP_ENUMERATE),
JS_PSGS("id", element_get_property_id, element_set_property_id, JSPROP_ENUMERATE),
JS_PSGS("innerHTML", element_get_property_innerHtml, element_set_property_innerHtml, JSPROP_ENUMERATE),
JS_PSGS("lang", element_get_property_lang, element_set_property_lang, JSPROP_ENUMERATE),
@ -268,6 +270,61 @@ element_get_property_firstChild(JSContext *ctx, unsigned int argc, JS::Value *vp
return true;
}
static bool
element_get_property_firstElementChild(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, &element_class, NULL))
return false;
vs = interpreter->vs;
if (!vs) {
return false;
}
xmlpp::Element *el = JS_GetPrivate(hobj);
if (!el) {
args.rval().setNull();
return true;
}
auto nodes = el->get_children();
if (nodes.empty()) {
args.rval().setNull();
return true;
}
auto it = nodes.begin();
auto end = nodes.end();
for (; it != end; ++it) {
const auto element = dynamic_cast<const xmlpp::Element*>(*it);
if (element) {
JSObject *elem = getElement(ctx, element);
args.rval().setObject(*elem);
return true;
}
}
args.rval().setNull();
return true;
}
static bool
element_get_property_id(JSContext *ctx, unsigned int argc, JS::Value *vp)
{

16
test/ecmascript/firstElementChild.html Normal file
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@ -0,0 +1,16 @@
<html>
<body>
<a href="/home">BBB</a>
<b dir="ltr" id="aaaa" class="a b c">bbb</b>
<a dir="rtl" id="blabla" href="/">BBB<b id="b1">AAA</b><u dir="auto" id="ble" title="test">UUU</u>AAAAAAA
</a>
<a id="bb" dir="blalalala" href="/">BB</a>
<script>
function aa()
{
alert(document.getElementById('blabla').firstElementChild.outerHTML);
}
</script>
<button onclick="return aa()">blabla firstElementChild outerHTML</button>
</body>
</html>