[studio] Add confirmation dialog for file deletion, move deletion to Project

src/olympic/studio/modlib/include/studio/project.hpp

@@ -45,7 +45,7 @@ constexpr ox::StringView parentDir(ox::StringView path) noexcept {
 	return substr(path, 0, extStart);
 }
 
-class Project {
+class Project: public ox::SignalHandler {
 	private:
 		ox::SmallMap<ox::String, ox::Optional<ox::ClawFormat>> m_typeFmt;
 		keel::Context &m_ctx;
@@ -91,6 +91,8 @@ class Project {
 
 		ox::Result<ox::FileStat> stat(ox::StringViewCR path) const noexcept;
 
+		ox::Error deleteItem(ox::StringViewCR path) noexcept;
+
 		[[nodiscard]]
 		bool exists(ox::StringViewCR path) const noexcept;
 

src/olympic/studio/modlib/src/project.cpp

@@ -69,6 +69,14 @@ ox::Result<ox::FileStat> Project::stat(ox::StringViewCR path) const noexcept {
 	return m_fs.stat(path);
 }
 
+ox::Error Project::deleteItem(ox::StringViewCR path) noexcept {
+	auto const err = m_fs.remove(path);
+	if (!err) {
+		fileDeleted.emit(path);
+	}
+	return err;
+}
+
 bool Project::exists(ox::StringViewCR path) const noexcept {
 	return m_fs.stat(path).error == 0;
 }