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[js] element.ownerDocument

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This commit is contained in:
Witold Filipczyk 2021-05-19 19:05:03 +02:00
parent 835d42e892
commit 1af9c9fc31
5 changed files with 72 additions and 0 deletions
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1
src/ecmascript/ecmascript.h
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@ -63,6 +63,7 @@ struct ecmascript_interpreter {
void *ac;
void *ac2;
void *ar;
void *document_obj;
JS::RootedValue fun;
};

2
src/ecmascript/spidermonkey.c
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@ -272,6 +272,8 @@ spidermonkey_get_interpreter(struct ecmascript_interpreter *interpreter)
goto release_and_fail;
}
interpreter->document_obj = document_obj;
forms_obj = spidermonkey_InitClass(ctx, document_obj, NULL,
&forms_class, NULL, 0,
forms_props,

18
src/ecmascript/spidermonkey/document.c
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@ -437,6 +437,23 @@ document_get_property_location(JSContext *ctx, unsigned int argc, JS::Value *vp)
return true;
}
static bool
document_get_property_nodeType(JSContext *ctx, unsigned int argc, JS::Value *vp)
{
JS::CallArgs args = CallArgsFromVp(argc, vp);
JS::RootedObject hobj(ctx, &args.thisv().toObject());
JSCompartment *comp = js::GetContextCompartment(ctx);
if (!comp) {
return false;
}
args.rval().setInt32(9);
return true;
}
static bool
document_set_property_location(JSContext *ctx, unsigned int argc, JS::Value *vp)
{
@ -715,6 +732,7 @@ JSPropertySpec document_props[] = {
JS_PSG("images", document_get_property_images, JSPROP_ENUMERATE),
JS_PSG("links", document_get_property_links, JSPROP_ENUMERATE),
JS_PSGS("location", document_get_property_location, document_set_property_location, JSPROP_ENUMERATE),
JS_PSG("nodeType", document_get_property_nodeType, JSPROP_ENUMERATE),
JS_PSG("referrer", document_get_property_referrer, JSPROP_ENUMERATE),
JS_PSG("scripts", document_get_property_scripts, JSPROP_ENUMERATE),
JS_PSGS("title", document_get_property_title, document_set_property_title, JSPROP_ENUMERATE), /* TODO: Charset? */

32
src/ecmascript/spidermonkey/element.c
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@ -76,6 +76,7 @@ static bool element_get_property_nodeType(JSContext *ctx, unsigned int argc, JS:
static bool element_get_property_nodeValue(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_get_property_outerHtml(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_set_property_outerHtml(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_get_property_ownerDocument(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_get_property_parentElement(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_get_property_parentNode(JSContext *ctx, unsigned int argc, JS::Value *vp);
static bool element_get_property_previousElementSibling(JSContext *ctx, unsigned int argc, JS::Value *vp);
@ -116,6 +117,7 @@ JSPropertySpec element_props[] = {
JS_PSG("nodeType", element_get_property_nodeType, JSPROP_ENUMERATE),
JS_PSG("nodeValue", element_get_property_nodeValue, JSPROP_ENUMERATE),
JS_PSGS("outerHTML", element_get_property_outerHtml, element_set_property_outerHtml, JSPROP_ENUMERATE),
JS_PSG("ownerDocument", element_get_property_ownerDocument, JSPROP_ENUMERATE),
JS_PSG("parentElement", element_get_property_parentElement, JSPROP_ENUMERATE),
JS_PSG("parentNode", element_get_property_parentNode, JSPROP_ENUMERATE),
JS_PSG("previousElementSibling", element_get_property_previousElementSibling, JSPROP_ENUMERATE),
@ -843,6 +845,36 @@ element_get_property_nextSibling(JSContext *ctx, unsigned int argc, JS::Value *v
return true;
}
static bool
element_get_property_ownerDocument(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;
}
args.rval().setObject(*(JSObject *)(interpreter->document_obj));
return true;
}
static bool
element_get_property_parentElement(JSContext *ctx, unsigned int argc, JS::Value *vp)
{

19
test/ecmascript/ownerDocument.html Normal file
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@ -0,0 +1,19 @@
<!DOCTYPE html>
<html>
<body>
<p id="myP">Click the button get the node type of the owner document of this &lt;p&gt; element.</p>
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
var x= document.getElementById("myP").ownerDocument.nodeType;
alert(x);
}
</script>
</body>
</html>