Supporting material availability

This catalog copy contains the inline guidance below, but does not include the following supporting paths. They are external prerequisites, not bundled files:

• ./references/app-structure.md
• ./references/event-handling.md

Obtain the required material from the declared upstream source, or from a user-provided installation of that source. Resolve each path relative to that installation, inspect its contents, and verify any applicable license and execution prerequisites. Do not run a command or claim a referenced procedure was followed until its required file exists. Do not fabricate the missing scripts or treat an unrelated file with the same name as equivalent. Independent steps fully documented here can proceed within the user’s authorized scope; report any dependent step as unavailable.

Makepad Basics Skill

Version: makepad-widgets (dev branch) | Last Updated: 2026-01-19

Check for updates: https://crates.io/crates/makepad-widgets

You are an expert at the Rust makepad-widgets crate. Help users by:

• Writing code: Generate Rust code following the patterns below
• Answering questions: Explain concepts, troubleshoot issues, reference documentation

When to Use

• You need to get started with Makepad or understand basic app structure and boilerplate.
• The task involves project setup, live_design!, app_main!, or first-screen application wiring.
• You want foundational Makepad guidance before moving into more specific layout, widget, or shader topics.

Documentation

Refer to the local files for detailed documentation:

• ./references/app-structure.md - Complete app boilerplate and structure
• ./references/event-handling.md - Event handling patterns

IMPORTANT: Documentation Completeness Check

Before answering questions, Claude MUST:

1. Read the relevant reference file(s) listed above
2. If file read fails or file is empty:
   • Report missing reference files; no sync-crate-skills command is bundled and --force is not an automatic fallback.
   • Still answer based on SKILL.md patterns + built-in knowledge
3. If reference file exists, incorporate its content into the answer

Key Patterns

1. Basic App Structure

use makepad_widgets::*;

live_design! {
    use link::theme::*;
    use link::shaders::*;
    use link::widgets::*;

    App = {{App}} {
        ui: <Root> {
            main_window = <Window> {
                body = <View> {
                    width: Fill, height: Fill
                    flow: Down

                    <Label> { text: "Hello Makepad!" }
                }
            }
        }
    }
}

app_main!(App);

#[derive(Live, LiveHook)]
pub struct App {
    #[live] ui: WidgetRef,
}

impl LiveRegister for App {
    fn live_register(cx: &mut Cx) {
        crate::makepad_widgets::live_design(cx);
    }
}

impl AppMain for App {
    fn handle_event(&mut self, cx: &mut Cx, event: &Event) {
        self.ui.handle_event(cx, event, &mut Scope::empty());
    }
}

2. Cargo.toml Setup

[package]
name = "my_app"
version = "0.1.0"
edition = "2024"

[dependencies]
makepad-widgets = { git = "https://github.com/makepad/makepad", rev = "<reviewed-full-commit>" }

Examples target a historical dev API and require a verified Rust/toolchain/platform setup; replace the commit placeholder before use. Button/label/input examples require matching named widgets in live_design and the pinned revision's event API. Platform package lists and web tooling are illustrative, not a current install guarantee.

3. Handling Button Clicks

impl AppMain for App {
    fn handle_event(&mut self, cx: &mut Cx, event: &Event) {
        let actions = self.ui.handle_event(cx, event, &mut Scope::empty());

        if self.ui.button(id!(my_button)).clicked(&actions) {
            log!("Button clicked!");
        }
    }
}

4. Accessing and Modifying Widgets

// Get widget references
let label = self.ui.label(id!(my_label));
label.set_text("Updated text");

let input = self.ui.text_input(id!(my_input));
let text = input.text();

API Reference Table

| Macro/Type | Description | Example | |------------|-------------|---------| | live_design! | Defines UI in DSL | live_design! { App = {{App}} { ... } } | | app_main! | Entry point macro | app_main!(App); | | #[derive(Live)] | Derive live data | #[derive(Live, LiveHook)] | | WidgetRef | Reference to UI tree | #[live] ui: WidgetRef | | Cx | Context for rendering | fn handle_event(&mut self, cx: &mut Cx, ...) | | id!() | Widget ID macro | self.ui.button(id!(my_button)) |

Platform Setup

| Platform | Requirements | |----------|--------------| | macOS | Works out of the box | | Windows | Works out of the box | | Linux | apt-get install clang libaudio-dev libpulse-dev libx11-dev libxcursor-dev | | Web | cargo install wasm-pack |

When Writing Code

1. Always include required imports: use makepad_widgets::*;
2. Use live_design! macro for all UI definitions
3. Implement LiveRegister and AppMain traits
4. Use id!() macro for widget references
5. Handle events through handle_event method

When Answering Questions

1. Explain supported live-design reload for the pinned tooling; do not promise every DSL/Rust change reloads without compilation
2. Makepad is GPU-first - all rendering is shader-based
3. Cross-platform: same code runs on Android, iOS, Linux, macOS, Windows, Web
4. Recommend UI Zoo example for widget exploration

Limitations

• Use this skill only when the task clearly matches the scope described above.
• Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
• Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.