smol changes

src/event.rs

@@ -21,13 +21,58 @@ pub enum EventResponse {
     /// Indicates no response.
     None,
     /// Issues a single command.
-    Command(Command),
     /// Issues a list of commands.
     CommandList(Vec<Command>),
-    // Update the current element
+    /// Update the current element
     UpdateSelf(Box<dyn crate::Element>),
-    // Update a element by a id
+    /// Update a element by a id
     UpdateElementById(String, Box<dyn crate::Element>),
+    /// Multiple Responses
+    /// # DO NOT USE MANUALLY
+    Mul(Vec<EventResponse>),
+}
+
+impl EventResponse {
+    pub fn add_command(&mut self, command: Command) {
+        match self {
+            EventResponse::CommandList(commands) => {
+                commands.push(command);
+            }
+            EventResponse::Mul(responses) => {
+                for response in responses {
+                    match response {
+                        EventResponse::CommandList(commands) => {
+                            commands.push(command.clone());
+                            return;
+                        }
+                        _ => {}
+                    }
+                }
+                self.add_response(EventResponse::CommandList(vec![command.clone()]));
+            }
+            _ => {}
+        }
+    }
+    pub fn update_self(&mut self, elem: Box<dyn crate::Element>) {
+        self.add_response(Self::UpdateSelf(elem));
+    }
+    pub fn update_element_by_id(&mut self, id: &str, elem: Box<dyn crate::Element>) {
+        self.add_response(Self::UpdateElementById(id.to_string(), elem));
+    }
+    pub fn add_response(&mut self, response: EventResponse) {
+        match self {
+            EventResponse::Mul(responses) => {
+                responses.insert(0, response);
+            }
+            _ => *self = EventResponse::Mul(vec![response, self.clone()]),
+        }
+    }
+    pub fn execute(&self) -> Vec<EventResponse> {
+        return match self {
+            EventResponse::Mul(v) => v.clone(),
+            _ => vec![self.clone()],
+        };
+    }
 }
 
 /// Enum representing the possible responses from an element update.
@@ -36,3 +81,10 @@ pub enum Event {
     Key(Key),
     State(usize),
 }
+
+/// A handler is a function that runs on a event of a element
+/// 
+/// # Params
+/// - &mut T: The element,
+/// - &mut EventResponse: The event response
+pub type Handler<T> = std::sync::Arc<std::sync::Mutex<dyn FnMut(&mut T, &mut EventResponse)>>;

src/lib.rs

@@ -79,7 +79,6 @@ pub mod app {
     /// `true` if an `Exit` command is issued, signaling the application to terminate.
     fn update(elem: &mut Box<dyn Element>, event: Event) -> bool {
         match elem.event(event) {
-            EventResponse::Command(command) => run_command(command, elem),
             EventResponse::CommandList(commands) => {
                 for command in commands {
                     if run_command(command, elem) {

src/macros.rs

@@ -249,6 +249,9 @@ macro_rules! parse_rsx_param {
     ($elem:expr, $text:expr) => {
         $elem.text = format!($text);
     };
+    ($elem:expr, $text:expr, $($inner:tt)*) => {
+        $elem.text = format!($text, $($inner)*);
+    };
 
     // Empty
     ($elem:expr, ) => {};
@@ -395,3 +398,28 @@ macro_rules! write {
         )
     }};
 }
+
+#[macro_export]
+macro_rules! execute_response {
+    ($self:expr, $res:expr) => {
+        for response in $res.execute() {
+            match response {
+                EventResponse::UpdateElementById(id, elem) => {
+                    for old in &mut $self.children {
+                        if old.get_id() == id {
+                            *old = elem.clone();
+                        }
+                    }
+                }
+                EventResponse::UpdateSelf(elem) => {
+                    if let Some(child) = $self.get_child() {
+                        *child = elem;
+                    }
+                }
+                _ => {
+                    return response;
+                }
+            }
+        }
+    };
+}

src/test/mod.rs

@@ -1,11 +1,15 @@
 use crate::{self as osui, arc, rsx, rsx_elem, ui::*, Element, EventResponse};
 
 pub fn app() -> Box<dyn Element> {
+    let mut something = String::from("!");
     rsx! {
-        button { on_click: arc!(move |btn: &mut Button| {
-            btn.event_response = EventResponse::UpdateElementById("my_id".to_string(), rsx_elem! { button { y: 2, id: "my_id", "updated!" } } );
-        }), "click me" }
+        button { on_click: arc!(move |_btn: &mut Button, response: &mut EventResponse| {
+            something += "!";
+            response.update_element_by_id("my_id", rsx_elem! {
+                text { id: "my_id", y: 2, "{something}" }
+            });
+        }), style.clicked_background: Color::Green, "click me" }
 
-        button { id: "my_id", y: 2, "ok" }
+        text { id: "my_id", y: 2, "!" }
     }
 }

src/ui/elements.rs

@@ -5,7 +5,8 @@ use std::{
 
 use crate::{
     command, element,
-    event::{Command, Event},
+    event::{Command, Event, Handler},
+    execute_response,
     key::Key,
     render_to_frame,
     ui::{Color, Font},
@@ -36,16 +37,11 @@ element! {
     /// based on its interaction state, such as being "clicked".
     Button {
         /// A callback function executed when the button is clicked. use `arc!` to use function
-        pub on_click: Arc<Mutex<dyn FnMut(&mut Button)>>,
-        pub event_response: EventResponse,
+        pub on_click: Handler<Button<'a>>,
     }
 
     defaults {
-        on_click: Arc::new(Mutex::new(|_btn: &mut Button<'_>| {})),
-        event_response: command!(
-            Command::Render(2),
-            Command::Sleep(120)
-        ),
+        on_click: Arc::new(Mutex::new(|_btn: &mut Button<'_>, _: &mut EventResponse| {})),
     }
 
     fn render(&self, state: usize) -> String {
@@ -61,10 +57,14 @@ element! {
                 if k == Key::Enter {
                     let mut btn = self.clone();
                     let mut on_click = self.on_click.lock().unwrap();
-                    (on_click)(&mut btn);
+                    let mut response = command!(
+                        Command::Render(2),
+                        Command::Sleep(120)
+                    );
+                    (on_click)(&mut btn, &mut response);
                     drop(on_click);
                     *self = btn;
-                    return self.event_response.clone();
+                    return response;
                 }
             }
             _ => {}
@@ -105,31 +105,18 @@ element! {
     }
 
     fn event(&mut self, event: Event) -> EventResponse {
+        let mut res = EventResponse::None;
         match event.clone() {
             Event::Key(k) => {
                 if let Some(direction) = self.keybinds.get(&k) {
                     self.child = crate::closest_component(&self.children, self.child, direction.clone());
                 } else if let Some(child) = self.get_child() {
-                    let res = child.event(event.clone());
-                    match res.clone() {
-                        EventResponse::UpdateElementById(id, elem) => {
-                            for old in &mut self.children {
-                                if old.get_id() == id {
-                                    *old = elem.clone();
-                                }
-                            }
-                        }
-                        EventResponse::UpdateSelf(elem) => {
-                            *child = elem;
-                        }
-                        _ => {}
-                    }
-                    return res;
+                    res = child.event(event.clone());
                 }
             }
             _ => {}
         }
-
-        EventResponse::None
+        execute_response!(self, res);
+        res
     }
 }