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LibDevTools+LibWebView: Implement requests to create DOM nodes

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This requires a couple of amendments to the DOM node serialization.
Namely, we need to include the HTML namespace, otherwise the context
menu item to create a new node is disabled.
This commit is contained in:
Timothy Flynn 2025-03-07 09:19:28 -05:00 • committed by Andreas Kling
commit ffd48e1d45
Notes: github-actions[bot] 2025-03-08 00:27:01 +00:00
4 changed files with 54 additions and 1 deletions
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46
Libraries/LibDevTools/Actors/WalkerActor.cpp
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@ -134,6 +134,47 @@ void WalkerActor::handle_message(StringView type, JsonObject const& message)
return;
}
if (type == "insertAdjacentHTML") {
// FIXME: This message also contains `value` and `position` parameters, containing the HTML to insert and the
// location to insert it. For the "Create New Node" action, this is always "<div></div>" and "beforeEnd",
// which is exactly what our WebView implementation currently supports.
auto node = message.get_string("node"sv);
if (!node.has_value()) {
send_missing_parameter_error("node"sv);
return;
}
if (auto dom_node = WalkerActor::dom_node_for(*this, *node); dom_node.has_value()) {
auto block_token = block_responses();
devtools().delegate().create_child_element(
dom_node->tab->description(), dom_node->identifier.id,
[weak_self = make_weak_ptr<WalkerActor>(), block_token = move(block_token)](ErrorOr<Web::UniqueNodeID> node_id) mutable {
if (node_id.is_error()) {
dbgln_if(DEVTOOLS_DEBUG, "Unable to edit DOM node: {}", node_id.error());
return;
}
if (auto self = weak_self.strong_ref()) {
JsonArray nodes;
if (auto actor = self->m_dom_node_id_to_actor_map.get(node_id.value()); actor.has_value()) {
if (auto dom_node = WalkerActor::dom_node_for(self, *actor); dom_node.has_value())
nodes.must_append(self->serialize_node(dom_node->node));
}
JsonObject message;
message.set("from"sv, self->name());
message.set("newParents"sv, JsonArray {});
message.set("nodes"sv, move(nodes));
self->send_message(move(message), move(block_token));
}
});
}
return;
}
if (type == "isInDOMTree"sv) {
auto node = message.get_string("node"sv);
if (!node.has_value()) {
@ -346,7 +387,7 @@ JsonValue WalkerActor::serialize_node(JsonObject const& node) const
serialized.set("containerType"sv, JsonValue {});
serialized.set("displayName"sv, name.to_ascii_lowercase());
serialized.set("displayType"sv, "block"sv);
serialized.set("host"sv, JsonValue {});
serialized.set("hasEventListeners"sv, false);
serialized.set("isAfterPseudoElement"sv, false);
serialized.set("isAnonymous"sv, false);
serialized.set("isBeforePseudoElement"sv, false);
@ -366,6 +407,9 @@ JsonValue WalkerActor::serialize_node(JsonObject const& node) const
serialized.set("shadowRootMode"sv, JsonValue {});
serialized.set("traits"sv, JsonObject {});
// FIXME: De-duplicate this string. LibDevTools currently cannot depend on LibWeb.
serialized.set("namespaceURI"sv, "http://www.w3.org/1999/xhtml"sv);
if (!is_top_level_document) {
if (auto parent = m_dom_node_to_parent_map.get(&node); parent.has_value() && parent.value()) {
actor = parent.value()->get_string("actor"sv);