From bdb31b029abcf73b5876a81845235a708da01aec Mon Sep 17 00:00:00 2001
From: Timothy Flynn <trflynn89@pm.me>
Date: Fri, 7 Mar 2025 09:26:36 -0500
Subject: [PATCH] LibDevTools+LibWebView: Implement requests to edit DOM node
 tags

---
 Libraries/LibDevTools/Actors/WalkerActor.cpp | 35 ++++++++++++++++++++
 Libraries/LibDevTools/DevToolsDelegate.h     |  1 +
 Libraries/LibWebView/Application.cpp         |  7 ++++
 Libraries/LibWebView/Application.h           |  1 +
 4 files changed, 44 insertions(+)

diff --git a/Libraries/LibDevTools/Actors/WalkerActor.cpp b/Libraries/LibDevTools/Actors/WalkerActor.cpp
index dcf3f294839..11eceec2334 100644
--- a/Libraries/LibDevTools/Actors/WalkerActor.cpp
+++ b/Libraries/LibDevTools/Actors/WalkerActor.cpp
@@ -73,6 +73,41 @@ void WalkerActor::handle_message(StringView type, JsonObject const& message)
         return;
     }
 
+    if (type == "editTagName"sv) {
+        auto node = message.get_string("node"sv);
+        if (!node.has_value()) {
+            send_missing_parameter_error("node"sv);
+            return;
+        }
+
+        auto tag_name = message.get_string("tagName"sv);
+        if (!tag_name.has_value()) {
+            send_missing_parameter_error("tagName"sv);
+            return;
+        }
+
+        if (auto dom_node = WalkerActor::dom_node_for(*this, *node); dom_node.has_value()) {
+            auto block_token = block_responses();
+
+            devtools().delegate().set_dom_node_tag(
+                dom_node->tab->description(), dom_node->identifier.id, tag_name.release_value(),
+                [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()) {
+                        JsonObject message;
+                        message.set("from"sv, self->name());
+                        self->send_message(move(message), move(block_token));
+                    }
+                });
+        }
+
+        return;
+    }
+
     if (type == "getLayoutInspector"sv) {
         if (!m_layout_inspector)
             m_layout_inspector = devtools().register_actor<LayoutInspectorActor>();
diff --git a/Libraries/LibDevTools/DevToolsDelegate.h b/Libraries/LibDevTools/DevToolsDelegate.h
index d31ca0cdda2..b04a79f3134 100644
--- a/Libraries/LibDevTools/DevToolsDelegate.h
+++ b/Libraries/LibDevTools/DevToolsDelegate.h
@@ -43,6 +43,7 @@ public:
 
     using OnDOMNodeEditComplete = Function<void(ErrorOr<Web::UniqueNodeID>)>;
     virtual void set_dom_node_text(TabDescription const&, Web::UniqueNodeID, String, OnDOMNodeEditComplete) const { }
+    virtual void set_dom_node_tag(TabDescription const&, Web::UniqueNodeID, String, OnDOMNodeEditComplete) const { }
     virtual void add_dom_node_attributes(TabDescription const&, Web::UniqueNodeID, Vector<WebView::Attribute>, OnDOMNodeEditComplete) const { }
     virtual void replace_dom_node_attribute(TabDescription const&, Web::UniqueNodeID, String, Vector<WebView::Attribute>, OnDOMNodeEditComplete) const { }
 
diff --git a/Libraries/LibWebView/Application.cpp b/Libraries/LibWebView/Application.cpp
index c10fd6aa0cb..a08cb18eb86 100644
--- a/Libraries/LibWebView/Application.cpp
+++ b/Libraries/LibWebView/Application.cpp
@@ -465,6 +465,13 @@ void Application::set_dom_node_text(DevTools::TabDescription const& description,
     });
 }
 
+void Application::set_dom_node_tag(DevTools::TabDescription const& description, Web::UniqueNodeID node_id, String value, OnDOMNodeEditComplete on_complete) const
+{
+    edit_dom_node(description, move(on_complete), [&](auto& view) {
+        view.set_dom_node_tag(node_id, move(value));
+    });
+}
+
 void Application::add_dom_node_attributes(DevTools::TabDescription const& description, Web::UniqueNodeID node_id, Vector<Attribute> replacement_attributes, OnDOMNodeEditComplete on_complete) const
 {
     edit_dom_node(description, move(on_complete), [&](auto& view) {
diff --git a/Libraries/LibWebView/Application.h b/Libraries/LibWebView/Application.h
index acaa3aa2f14..610c748e099 100644
--- a/Libraries/LibWebView/Application.h
+++ b/Libraries/LibWebView/Application.h
@@ -99,6 +99,7 @@ private:
     virtual void listen_for_dom_mutations(DevTools::TabDescription const&, OnDOMMutationReceived) const override;
     virtual void stop_listening_for_dom_mutations(DevTools::TabDescription const&) const override;
     virtual void set_dom_node_text(DevTools::TabDescription const&, Web::UniqueNodeID, String, OnDOMNodeEditComplete) const override;
+    virtual void set_dom_node_tag(DevTools::TabDescription const&, Web::UniqueNodeID, String, OnDOMNodeEditComplete) const override;
     virtual void add_dom_node_attributes(DevTools::TabDescription const&, Web::UniqueNodeID, Vector<Attribute>, OnDOMNodeEditComplete) const override;
     virtual void replace_dom_node_attribute(DevTools::TabDescription const&, Web::UniqueNodeID, String, Vector<Attribute>, OnDOMNodeEditComplete) const override;
     virtual void evaluate_javascript(DevTools::TabDescription const&, String, OnScriptEvaluationComplete) const override;