[studio] Add ability to add file through dir context menu

Also, fix dir context menu to work when dir is closed, and fix it not to
override last file in the directory.

src/olympic/studio/applib/src/newmenu.cpp

@@ -22,6 +22,12 @@ void NewMenu::open() noexcept {
 	m_selectedType = 0;
 	m_itemName = "";
 	m_typeName = "";
+	m_path = "";
+}
+
+void NewMenu::openPath(ox::StringParam path) noexcept {
+	open();
+	m_path = std::move(path);
 }
 
 void NewMenu::close() noexcept {
@@ -158,14 +164,14 @@ void NewMenu::finish(StudioContext &sctx) noexcept {
 		oxLogError(ox::Error{1, "New file error: no file name"});
 		return;
 	}
-	auto const&im = *m_types[static_cast<std::size_t>(m_selectedType)];
-	if (sctx.project->exists(im.itemPath(m_itemName))) {
+	auto const&im = *m_types[m_selectedType];
+	auto const path = m_path.len() ?
+		im.itemPath(m_itemName, m_path) : im.itemPath(m_itemName);
+	if (sctx.project->exists(path)) {
 		oxLogError(ox::Error{1, "New file error: file already exists"});
 		return;
 	}
-	auto const [path, err] =
-		im.write(sctx, m_itemName, m_selectedTemplate);
-	if (err) {
+	if (auto const err = im.write(sctx, path, m_selectedTemplate)) {
 		oxLogError(err);
 		return;
 	}

src/olympic/studio/applib/src/newmenu.hpp

@@ -30,6 +30,7 @@ class NewMenu final: public Popup {
 		Stage m_stage = Stage::Closed;
 		ox::String m_typeName;
 		ox::IString<255> m_itemName;
+		ox::String m_path;
 		ox::Vector<ox::UPtr<studio::ItemMaker>> m_types;
 		size_t m_selectedType = 0;
 		size_t m_selectedTemplate = 0;
@@ -38,6 +39,8 @@ class NewMenu final: public Popup {
 	public:
 		NewMenu() noexcept;
 
+		void openPath(ox::StringParam path) noexcept;
+
 		void open() noexcept override;
 
 		void close() noexcept override;

src/olympic/studio/applib/src/projectexplorer.hpp

@@ -19,7 +19,8 @@ class ProjectExplorer: public Widget {
 
 	public:
 		// slots
-		ox::Signal<ox::Error(ox::StringView const&)> fileChosen;
+		ox::Signal<ox::Error(ox::StringViewCR)> fileChosen;
+		ox::Signal<ox::Error(ox::StringViewCR)> addItem;
 
 		explicit ProjectExplorer(turbine::Context &ctx) noexcept;
 

src/olympic/studio/applib/src/projecttreemodel.cpp

@@ -4,6 +4,8 @@
 
 #include <imgui.h>
 
+#include <studio/imguiutil.hpp>
+
 #include "projectexplorer.hpp"
 #include "projecttreemodel.hpp"
 
@@ -30,10 +32,14 @@ bool ProjectTreeModel::draw(turbine::Context &ctx) const noexcept {
 	constexpr auto dirFlags = ImGuiTreeNodeFlags_OpenOnArrow | ImGuiTreeNodeFlags_OpenOnDoubleClick;
 	if (!m_children.empty()) {
 		if (ImGui::TreeNodeEx(m_name.c_str(), dirFlags)) {
+            drawDirContextMenu();
 			for (auto const&child : m_children) {
 				updated = child->draw(ctx) || updated;
 			}
 			ImGui::TreePop();
+		} else {
+			ig::IDStackItem const idStackItem{m_name};
+            drawDirContextMenu();
 		}
 	} else {
 		auto const path = fullPath();
@@ -58,6 +64,15 @@ void ProjectTreeModel::setChildren(ox::Vector<ox::UPtr<ProjectTreeModel>> childr
 	m_children = std::move(children);
 }
 
+void ProjectTreeModel::drawDirContextMenu() const noexcept {
+    if (ImGui::BeginPopupContextItem("DirMenu", ImGuiPopupFlags_MouseButtonRight)) {
+        if (ImGui::MenuItem("Add Item")) {
+            m_explorer.addItem.emit(fullPath());
+        }
+        ImGui::EndPopup();
+    }
+}
+
 ox::BasicString<255> ProjectTreeModel::fullPath() const noexcept {
 	if (m_parent) {
 		return m_parent->fullPath() + "/" + ox::StringView(m_name);

src/olympic/studio/applib/src/projecttreemodel.hpp

@@ -31,6 +31,8 @@ class ProjectTreeModel {
 		void setChildren(ox::Vector<ox::UPtr<ProjectTreeModel>> children) noexcept;
 
 	private:
+		void drawDirContextMenu() const noexcept;
+
 		[[nodiscard]]
 		ox::BasicString<255> fullPath() const noexcept;
 

src/olympic/studio/applib/src/studioapp.cpp

@@ -52,6 +52,7 @@ StudioUI::StudioUI(turbine::Context &ctx, ox::StringParam projectDataDir) noexce
 		m_aboutPopup(m_tctx) {
 	turbine::setApplicationData(m_tctx, &m_sctx);
 	m_projectExplorer.fileChosen.connect(this, &StudioUI::openFile);
+	m_projectExplorer.addItem.connect(this, &StudioUI::addFile);
 	m_newProject.finished.connect(this, &StudioUI::createOpenProject);
 	m_newMenu.finished.connect(this, &StudioUI::openFile);
 	ImGui::GetIO().IniFilename = nullptr;
@@ -342,6 +343,11 @@ void StudioUI::handleKeyInput() noexcept {
 	}
 }
 
+ox::Error StudioUI::addFile(ox::StringViewCR path) noexcept {
+	m_newMenu.openPath(path);
+	return {};
+}
+
 ox::Error StudioUI::createOpenProject(ox::StringViewCR path) noexcept {
 	std::error_code ec;
 	std::filesystem::create_directories(toStdStringView(path), ec);

src/olympic/studio/applib/src/studioapp.hpp

@@ -83,6 +83,8 @@ class StudioUI: public ox::SignalHandler {
 
 		void handleKeyInput() noexcept;
 
+		ox::Error addFile(ox::StringViewCR path) noexcept;
+
 		ox::Error createOpenProject(ox::StringViewCR path) noexcept;
 
 		ox::Error openProjectPath(ox::StringParam path) noexcept;