refactor(new_editor): streamline internal layout and command routing

new_editor/app/Features/Hierarchy/HierarchyPanelCommands.cpp

@@ -0,0 +1,120 @@
+#include "HierarchyPanelSupport.h"
+
+#include <utility>
+
+namespace XCEngine::UI::Editor::App {
+
+namespace {
+
+UIEditorHostCommandEvaluationResult BuildEvaluationResult(
+    bool executable,
+    std::string message) {
+    UIEditorHostCommandEvaluationResult result = {};
+    result.executable = executable;
+    result.message = std::move(message);
+    return result;
+}
+
+UIEditorHostCommandDispatchResult BuildDispatchResult(
+    bool commandExecuted,
+    std::string message) {
+    UIEditorHostCommandDispatchResult result = {};
+    result.commandExecuted = commandExecuted;
+    result.message = std::move(message);
+    return result;
+}
+
+} // namespace
+
+UIEditorHostCommandEvaluationResult HierarchyPanel::EvaluateEditCommand(
+    std::string_view commandId) const {
+    const HierarchyNode* selectedNode = GetSelectedNode();
+    if (selectedNode == nullptr) {
+        return BuildEvaluationResult(false, "Select a hierarchy object first.");
+    }
+
+    if (commandId == "edit.rename") {
+        return BuildEvaluationResult(
+            true,
+            "Rename hierarchy object '" + selectedNode->label + "'.");
+    }
+
+    if (commandId == "edit.delete") {
+        return BuildEvaluationResult(
+            true,
+            "Delete hierarchy object '" + selectedNode->label + "'.");
+    }
+
+    if (commandId == "edit.duplicate") {
+        return BuildEvaluationResult(
+            true,
+            "Duplicate hierarchy object '" + selectedNode->label + "'.");
+    }
+
+    if (commandId == "edit.cut" ||
+        commandId == "edit.copy" ||
+        commandId == "edit.paste") {
+        return BuildEvaluationResult(
+            false,
+            "Hierarchy clipboard has no bound transfer owner in the current shell.");
+    }
+
+    return BuildEvaluationResult(false, "Hierarchy does not expose this edit command.");
+}
+
+UIEditorHostCommandDispatchResult HierarchyPanel::DispatchEditCommand(
+    std::string_view commandId) {
+    const UIEditorHostCommandEvaluationResult evaluation = EvaluateEditCommand(commandId);
+    if (!evaluation.executable) {
+        return BuildDispatchResult(false, evaluation.message);
+    }
+
+    const HierarchyNode* selectedNode = GetSelectedNode();
+    if (selectedNode == nullptr) {
+        return BuildDispatchResult(false, "Select a hierarchy object first.");
+    }
+
+    const std::string selectedNodeId = selectedNode->nodeId;
+    const std::string selectedNodeLabel = selectedNode->label;
+
+    if (commandId == "edit.rename") {
+        EmitRenameRequestedEvent(selectedNodeId);
+        return BuildDispatchResult(
+            true,
+            "Hierarchy rename requested for '" + selectedNodeLabel + "'.");
+    }
+
+    if (commandId == "edit.delete") {
+        if (!m_model.DeleteNode(selectedNodeId)) {
+            return BuildDispatchResult(false, "Failed to delete the selected hierarchy object.");
+        }
+
+        RebuildItems();
+        EmitSelectionEvent();
+        return BuildDispatchResult(
+            true,
+            "Deleted hierarchy object '" + selectedNodeLabel + "'.");
+    }
+
+    if (commandId == "edit.duplicate") {
+        const std::string duplicatedNodeId = m_model.DuplicateNode(selectedNodeId);
+        if (duplicatedNodeId.empty()) {
+            return BuildDispatchResult(false, "Failed to duplicate the selected hierarchy object.");
+        }
+
+        RebuildItems();
+        m_selection.SetSelection(duplicatedNodeId);
+        EmitSelectionEvent();
+
+        const HierarchyNode* duplicatedNode = m_model.FindNode(duplicatedNodeId);
+        const std::string duplicatedLabel =
+            duplicatedNode != nullptr ? duplicatedNode->label : selectedNodeLabel;
+        return BuildDispatchResult(
+            true,
+            "Duplicated hierarchy object '" + duplicatedLabel + "'.");
+    }
+
+    return BuildDispatchResult(false, "Hierarchy does not expose this edit command.");
+}
+
+} // namespace XCEngine::UI::Editor::App