Robius Event and Action Patterns Skill

Robius Event and Action Patterns Skill

Best practices for event handling and action patterns in Makepad applications based on Robrix and Moly codebases.

Source codebases:

• Robrix: Matrix chat client - MessageAction, RoomsListAction, AppStateAction
• Moly: AI chat application - StoreAction, ChatAction, NavigationAction, Timer patterns

When to Use

Use this skill when:

• Implementing custom actions in Makepad
• Handling events in widgets
• Centralizing action handling in App
• Widget-to-widget communication
• Keywords: makepad action, makepad event, widget action, handle_actions, cx.widget_action

Custom Action Pattern

Defining Domain-Specific Actions

use makepad_widgets::*;

/// Actions emitted by the Message widget
#[derive(Clone, DefaultNone, Debug)]
pub enum MessageAction {
    /// User wants to react to a message
    React { details: MessageDetails, reaction: String },
    /// User wants to reply to a message
    Reply(MessageDetails),
    /// User wants to edit a message
    Edit(MessageDetails),
    /// User wants to delete a message
    Delete(MessageDetails),
    /// User requested to open context menu
    OpenContextMenu { details: MessageDetails, abs_pos: DVec2 },
    /// Required default variant
    None,
}