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[js] outerHTML (read)

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This commit is contained in:
Witold Filipczyk 2021-05-04 15:32:29 +02:00
parent 3bd33b9dd3
commit cf5841b8de
2 changed files with 127 additions and 0 deletions
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109
src/ecmascript/spidermonkey/element.c
View File

@ -52,6 +52,8 @@ static bool element_get_property_id(JSContext *ctx, unsigned int argc, JS::Value
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);
static bool element_set_property_innerHtml(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);
JSClassOps element_ops = {
JS_PropertyStub, nullptr,
@ -68,6 +70,7 @@ JSClass element_class = {
JSPropertySpec element_props[] = {
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("outerHTML", element_get_property_outerHtml, element_set_property_outerHtml, JSPROP_ENUMERATE),
JS_PS_END
};
@ -143,6 +146,34 @@ walk_tree(struct string *buf, tree<HTML::Node> const &dom, const unsigned int of
}
}
static void
walk_tree_outer(struct string *buf, tree<HTML::Node> const &dom, const unsigned int offset)
{
int local = 0;
tree<HTML::Node>::iterator it = dom.begin();
if (!was_el && it->isTag()) {
if (it->offset() == offset) {
was_el = 1;
local = 1;
}
}
if (was_el) add_to_string(buf, it->text().c_str());
for (tree<HTML::Node>::sibling_iterator childIt = dom.begin(it); childIt != dom.end(it); ++childIt)
{
walk_tree_outer(buf, childIt, offset);
}
if (was_el) {
add_to_string(buf, it->closingText().c_str());
if (local) {
was_el = 0;
}
}
}
static bool
element_get_property_innerHtml(JSContext *ctx, unsigned int argc, JS::Value *vp)
{
@ -192,6 +223,56 @@ element_get_property_innerHtml(JSContext *ctx, unsigned int argc, JS::Value *vp)
return true;
}
static bool
element_get_property_outerHtml(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;
}
tree<HTML::Node> *el = JS_GetPrivate(hobj);
if (!el) {
args.rval().setNull();
return true;
}
struct document_view *doc_view = vs->doc_view;
struct document *document = doc_view->document;
tree<HTML::Node> *dom = document->dom;
struct string buf;
init_string(&buf);
was_el = 0;
walk_tree_outer(&buf, *dom, el->begin()->offset());
args.rval().setString(JS_NewStringCopyZ(ctx, buf.source));
done_string(&buf);
return true;
}
static bool
element_set_property_id(JSContext *ctx, unsigned int argc, JS::Value *vp)
@ -249,6 +330,34 @@ element_set_property_innerHtml(JSContext *ctx, unsigned int argc, JS::Value *vp)
return true;
}
static bool
element_set_property_outerHtml(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;
}
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;
struct view_state *vs = interpreter->vs;
if (!vs) {
return true;
}
return true;
}
JSObject *
getElement(JSContext *ctx, void *node)

18
test/ecmascript/outer.html Normal file
View File

@ -0,0 +1,18 @@
<html>
<body>
<a href="/home">BBB</a>
<b id="aaaa">bbb</b>
<a id="blabla" href="/">
<b>AAA</b><u id="ble">UUU</u>AAAAAAA
</a>
<a id="bb" href="/">BB</a>
<script>
function aa()
{
// alert(document.getElementById('blabla').outerHTML);
alert(document.getElementById('ble').outerHTML);
}
</script>
<button onclick="return aa()">Click me!</button>
</body>
</html>