Add Node explorer

CMakeLists.txt

@@ -92,6 +92,7 @@ add_library(${PROJECT_NAME} SHARED
   # Window source files
   src/windows/GraphWindow.cpp
   src/windows/ModuleManagerWindow.cpp
+  src/windows/NodeExplorerWindow.cpp
 
   # Widget source files
   src/widgets/InputField.cpp

include/flow/ui/Window.hpp

@@ -10,7 +10,8 @@
 FLOW_UI_NAMESPACE_START
 
 /// Default name of the main dockspace.
-static inline const std::string DefaultDockspace = "MainDockSpace";
+static inline const std::string DefaultDockspace  = "MainDockSpace";
+static inline const std::string PropertyDockspace = "PropertySpace";
 
 /**
  * @brief Base Windows class.

include/flow/ui/windows/GraphWindow.hpp

@@ -4,6 +4,7 @@
 #pragma once
 
 #include "flow/ui/Core.hpp"
+#include "flow/ui/Widget.hpp"
 #include "flow/ui/Window.hpp"
 #include "flow/ui/views/NodeView.hpp"
 
@@ -18,6 +19,27 @@
 
 FLOW_UI_NAMESPACE_START
 
+class ContextMenu : public Widget
+{
+  public:
+    ContextMenu(std::shared_ptr<NodeFactory> factory) : _factory(std::move(factory)) {}
+
+    virtual ~ContextMenu() = default;
+
+    virtual void operator()() noexcept override;
+
+  private:
+    void DrawPopupCategory(const std::string& category, const flow::CategoryMap& registered_nodes);
+
+  public:
+    Event<const std::string&, const std::string&> OnSelection;
+
+  private:
+    std::shared_ptr<NodeFactory> _factory;
+    std::string node_lookup;
+    bool is_focused = false;
+};
+
 /**
  * @brief Graph editor window for creating flows.
  */
@@ -180,15 +202,12 @@ class GraphWindow : public Window
 
     void CreateItems();
     void CleanupDeadItems();
-    void ShowNodeContextMenu();
 
     void OnLoadNode(const flow::SharedNode& node, const json& position_json);
     void OnLoadConnection(const flow::SharedConnection& connection);
 
     flow::SharedNode CreateNode(const std::string& class_name, const std::string& display_name);
 
-    void DrawPopupCategory(const std::string& category, const flow::CategoryMap& registered_nodes);
-
   private:
     std::unique_ptr<EditorContext> _editor_ctx;
     std::shared_ptr<flow::Graph> _graph;
@@ -204,6 +223,8 @@ class GraphWindow : public Window
 
     std::string node_lookup;
 
+    ContextMenu node_context_menu;
+
     struct
     {
         float x = 0.f;

include/flow/ui/windows/NodeExplorerWindow.hpp

@@ -0,0 +1,37 @@
+#pragma once
+
+#include "Core.hpp"
+#include "Window.hpp"
+
+#include <flow/core/Env.hpp>
+#include <flow/core/Event.hpp>
+#include <flow/core/Graph.hpp>
+#include <flow/core/NodeFactory.hpp>
+
+FLOW_UI_NAMESPACE_START
+
+class NodeExplorerWindow : public Window
+{
+  public:
+    NodeExplorerWindow(std::shared_ptr<Env> env);
+    virtual ~NodeExplorerWindow() = default;
+
+    virtual void Draw() override;
+
+    void SetActiveGraph(std::shared_ptr<Graph> graph) { _active_graph = std::move(graph); }
+
+  private:
+    void DrawPopupCategory(const std::string& category, const flow::CategoryMap& registered_nodes);
+
+  private:
+    std::shared_ptr<Env> _env;
+    std::shared_ptr<Graph> _active_graph;
+    std::string node_lookup;
+    struct
+    {
+        std::string class_name;
+        std::string display_name;
+    } drag_drop_payload;
+};
+
+FLOW_UI_NAMESPACE_END

src/Editor.cpp

@@ -9,6 +9,7 @@
 #include "Window.hpp"
 #include "utilities/Conversions.hpp"
 #include "windows/ModuleManagerWindow.hpp"
+#include "windows/NodeExplorerWindow.hpp"
 
 #include <flow/core/Node.hpp>
 #include <flow/core/NodeFactory.hpp>
@@ -146,7 +147,14 @@ void Editor::Init(const std::string& initial_file)
     _factory->RegisterInputType<std::chrono::months>(std::chrono::months::zero());
     _factory->RegisterInputType<std::chrono::years>(std::chrono::years::zero());
 
-    AddWindow(std::make_shared<ModuleManagerWindow>(_env, default_modules_path), DefaultDockspace);
+    auto node_explorer = std::make_shared<NodeExplorerWindow>(_env);
+    OnActiveGraphChanged.Bind("NodeExplorer", [window = node_explorer](const auto& g) { window->SetActiveGraph(g); });
+
+    AddDockspace(PropertyDockspace, DefaultDockspace, 0.25f, DockspaceSplitDirection::Left);
+    AddDockspace("PropertySubSpace", PropertyDockspace, 0.5f, DockspaceSplitDirection::Down);
+
+    AddWindow(std::move(node_explorer), "PropertySubSpace");
+    AddWindow(std::make_shared<ModuleManagerWindow>(_env, default_modules_path), "PropertySubSpace");
 
     if (!initial_file.empty())
     {