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[js] element.children

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innerHTML does not accept non-xhtml
This commit is contained in:
Witold Filipczyk 2021-06-07 15:41:28 +02:00
parent 92de5f3c19
commit 70a9e53a36
2 changed files with 90 additions and 0 deletions
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65
src/ecmascript/spidermonkey/element.c
View File

@ -57,6 +57,7 @@
#include <string>
static bool element_get_property_attributes(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_get_property_children(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_get_property_childElementCount(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_get_property_className(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_set_property_className(JSContext *ctx, unsigned int argc, JS::Value *vp);
@ -105,6 +106,7 @@ JSClass element_class = {
JSPropertySpec element_props[] = {
JS_PSG("attributes", element_get_property_attributes, JSPROP_ENUMERATE),
JS_PSG("children", element_get_property_children, JSPROP_ENUMERATE),
JS_PSG("childElementCount", element_get_property_childElementCount, JSPROP_ENUMERATE),
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),
@ -180,6 +182,69 @@ element_get_property_attributes(JSContext *ctx, unsigned int argc, JS::Value *vp
return true;
}
static bool
element_get_property_children(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;
}
xmlpp::Node::NodeSet *list = new xmlpp::Node::NodeSet;
auto it = nodes.begin();
auto end = nodes.end();
for (; it != end; ++it) {
const auto element = dynamic_cast<xmlpp::Element*>(*it);
if (element) {
list->push_back(reinterpret_cast<xmlpp::Node*>(element));
}
}
if (list->empty()) {
delete list;
args.rval().setNull();
return true;
}
JSObject *elem = getCollection(ctx, list);
args.rval().setObject(*elem);
return true;
}
static bool
element_get_property_childElementCount(JSContext *ctx, unsigned int argc, JS::Value *vp)
{

25
test/ecmascript/children.html Normal file
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@ -0,0 +1,25 @@
<!DOCTYPE html>
<html>
<body>
<p>Click the button to get the tag names of the body element's children.</p>
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
var c = document.body.children;
var txt = "";
var i;
for (i = 0; i < c.length; i++) {
txt = txt + c[i].tagName + "<br/>";
}
document.getElementById("demo").innerHTML = txt;
}
</script>
</body>
</html>