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use gtk::prelude::*;
use std::collections::HashMap;
use std::sync::Mutex;
use crate::index::Index;
use std::rc::Rc;
use std::sync::Arc;
pub trait View {
fn name(&self) -> &str;
fn set_vm(&mut self, vm : Rc<ViewManager>);
fn make_current(&self) -> Option<gtk::Box>;
}
#[derive(Default)]
pub struct ViewManager {
views : HashMap<String, Rc<Mutex<dyn View>>>,
pub current : Mutex<String>,
pub window : Option<gtk::ApplicationWindow>,
index : Arc<Mutex<Index>>
}
impl ViewManager {
pub fn new(window : gtk::ApplicationWindow) -> Self {
Self {
views : HashMap::new(),
current : Mutex::new(String::new()),
window : Some(window),
index : Arc::new(Mutex::new(Index::default()))
}
}
pub fn empty() -> Self {
Self {
.. Default::default()
}
}
pub fn add_view(&mut self, view : Rc<Mutex<dyn View>>) {
self.views.insert(view.lock().unwrap().name().to_string(), view.clone());
}
pub fn set_current_view(&self, name : &str) {
let b = self.views.get(name).expect("unkown view").lock().unwrap().make_current();
let window = self.window.as_ref().unwrap();
for child in window.children() {
window.remove(&child)
}
{
*(self.current.lock().unwrap()) = name.to_string();
}
if let Some(b) = b {
window.add(&b);
window.show_all();
} else {
window.hide();
}
}
pub fn get_current_view(&self) -> String {
self.current.lock().unwrap().to_string()
}
pub fn get_window(&self) -> >k::ApplicationWindow {
self.window.as_ref().unwrap()
}
pub fn get_index(&self) -> Arc<Mutex<Index>> {
Arc::clone(&self.index)
}
pub fn set_index(&self, index : Index) {
let mut idx = self.index.lock().unwrap();
*idx = index;
}
}
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