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|
use std::collections::HashMap;
use crate::{
input::EventHandler,
process::{module::Module, process_result::ProcessResult, state::State},
todo_file::TodoFile,
view::{RenderContext, ViewData, ViewSender},
};
pub struct Modules {
pub modules: HashMap<State, Box<dyn Module>>,
}
impl Modules {
pub fn new() -> Self {
Self {
modules: HashMap::new(),
}
}
pub fn register_module<T: Module + 'static>(&mut self, state: State, module: T) {
self.modules.insert(state, Box::new(module));
}
fn get_mut_module(&mut self, state: State) -> &mut Box<dyn Module> {
self.modules
.get_mut(&state)
.unwrap_or_else(|| panic!("Invalid module for provided state: {:?}", state))
}
pub fn activate(&mut self, state: State, rebase_todo: &TodoFile, previous_state: State) -> ProcessResult {
self.get_mut_module(state).activate(rebase_todo, previous_state)
}
pub fn deactivate(&mut self, state: State) {
self.get_mut_module(state).deactivate();
}
pub fn build_view_data(
&mut self,
state: State,
render_context: &RenderContext,
rebase_todo: &TodoFile,
) -> &ViewData {
self.get_mut_module(state).build_view_data(render_context, rebase_todo)
}
pub fn handle_input(
&mut self,
state: State,
event_handler: &EventHandler,
view_sender: &ViewSender,
rebase_todo: &mut TodoFile,
) -> ProcessResult {
self.get_mut_module(state)
.handle_events(event_handler, view_sender, rebase_todo)
}
pub fn error(&mut self, state: State, error: &anyhow::Error) {
self.get_mut_module(state).handle_error(error);
}
}
#[cfg(test)]
mod tests {
use std::{cell::RefCell, rc::Rc};
use anyhow::{anyhow, Error};
use super::*;
use crate::{
input::{Event, MetaEvent},
process::testutil::process_module_test,
};
struct TestModule {
view_data: ViewData,
trace: Rc<RefCell<Vec<String>>>,
}
impl TestModule {
fn new(trace: Rc<RefCell<Vec<String>>>) -> Self {
Self {
view_data: ViewData::new(|_| {}),
trace,
}
}
}
impl Module for TestModule {
fn activate(&mut self, _rebase_todo: &TodoFile, _previous_state: State) -> ProcessResult {
self.trace.borrow_mut().push(String::from("Activate"));
ProcessResult::new()
}
fn deactivate(&mut self) {
self.trace.borrow_mut().push(String::from("Deactivate"));
}
fn build_view_data(&mut self, _render_context: &RenderContext, _rebase_todo: &TodoFile) -> &ViewData {
self.trace.borrow_mut().push(String::from("Build View Data"));
&self.view_data
}
fn handle_events(&mut self, _: &EventHandler, _: &ViewSender, _: &mut TodoFile) -> ProcessResult {
self.trace.borrow_mut().push(String::from("Handle Events"));
ProcessResult::new()
}
fn handle_error(&mut self, error: &Error) {
self.trace.borrow_mut().push(error.to_string());
}
}
#[test]
fn module_lifecycle() {
process_module_test(&["pick aaa comment"], &[Event::Meta(MetaEvent::Exit)], |mut context| {
let mut modules = Modules::new();
let trace = Rc::new(RefCell::new(Vec::new()));
let test_module = TestModule::new(Rc::clone(&trace));
modules.register_module(State::List, test_module);
modules.activate(State::List, &context.rebase_todo_file, State::Insert);
modules.handle_input(
State::List,
&context.event_handler_context.event_handler,
&context.view_sender_context.sender,
&mut context.rebase_todo_file,
);
modules.build_view_data(State::List, &RenderContext::new(100, 100), &context.rebase_todo_file);
modules.deactivate(State::List);
assert_eq!(
(*trace).borrow().join(","),
"Activate,Handle Events,Build View Data,Deactivate"
);
});
}
#[test]
fn error() {
let mut modules = Modules::new();
let trace = Rc::new(RefCell::new(Vec::new()));
let test_module = TestModule::new(Rc::clone(&trace));
modules.register_module(State::Error, test_module);
modules.error(State::Error, &anyhow!("Test Error"));
assert_eq!((*trace).borrow().join(","), "Test Error");
}
}
|
