### Simple egui_dnd Example

Source: https://github.com/lucasmerlin/hello_egui/blob/main/crates/egui_dnd/README.md

This is a basic example demonstrating the usage of egui_dnd. It requires setting up the drag and drop context and then using the provided widgets.

```rust
use egui::*;
use egui_dnd::{DragDropUi, State};

fn main() {
    let mut state = State::new();

    egui_web::App::new(move |ctx| {
        egui::CentralPanel::default().show(ctx, |ui| {
            let mut drag_drop_ui = DragDropUi::new(&mut state);
            ui.label("Drag and drop example");

            let mut items = vec!["item 1", "item 2", "item 3"];

            drag_drop_ui.ui(ui, |ui, item| {
                ui.label(item);
            });
        });
    });
}

```

--------------------------------

### Minimal egui_suspense Example

Source: https://github.com/lucasmerlin/hello_egui/blob/main/crates/egui_suspense/README.md

This example shows how to use EguiSuspense to display loading, error, and retry UI elements while waiting for asynchronous data. It requires the `eframe` and `egui_suspense` crates. The callback function simulates an asynchronous operation that can either succeed with data or fail with an error.

```rust
use eframe::egui;
use egui::CentralPanel;
use egui_suspense::EguiSuspense;

pub fn main() -> eframe::Result<()> {
    let mut suspense = EguiSuspense::reloadable(|cb| {
        std::thread::spawn(move || {
            std::thread::sleep(std::time::Duration::from_secs(1));
            cb(if rand::random() {
                Ok("Hello".to_string())
            } else {
                Err("OOPSIE WOOPSIE!".to_string())
            });
        });
    });

    eframe::run_simple_native(
        "DnD Simple Example",
        Default::default(),
        move |ctx, _frame| {
            CentralPanel::default().show(ctx, |ui| {
                
                // This will show a spinner while loading and an error message with a 
                // retry button if the callback returns an error.
                suspense.ui(ui, |ui, data, state| {
                    ui.label(format!("Data: {:?}", data));

                    if ui.button("Reload").clicked() {
                        state.reload();
                    }
                });
            });
        },
    )
}
```

--------------------------------

### Basic egui_inbox Usage Example

Source: https://github.com/lucasmerlin/hello_egui/blob/main/crates/egui_inbox/README.md

Demonstrates how to use UiInbox to receive messages from a spawned thread within an egui application. It shows how to send a message from a thread and update the UI state upon reception.

```rust
use eframe::egui;
use egui::CentralPanel;
use egui_inbox::UiInbox;

pub fn main() -> eframe::Result<()> {
    let inbox = UiInbox::new();
    let mut state = None;

    eframe::run_simple_native(
        "DnD Simple Example",
        Default::default(),
        move |ctx, _frame| {
            CentralPanel::default().show(ctx, |ui| {
                // `read` will return an iterator over all pending messages
                if let Some(last) = inbox.read(ui).last() {
                    state = last;
                }
                // There also is a `replace` method that you can use as a shorthand for the above:
                // inbox.replace(ui, &mut state);

                ui.label(format!("State: {:?}", state));
                if ui.button("Async Task").clicked() {
                    state = Some("Waiting for async task to complete".to_string());
                    let tx = inbox.sender();
                    std::thread::spawn(move || {
                        std::thread::sleep(std::time::Duration::from_secs(1));
                        // Send will return an error if the receiver has been dropped
                        // but unless you have a long running task that will send multiple messages
                        // you can just ignore the error
                        tx.send(Some("Hello from another thread!".to_string())).ok();
                    });
                }
            });
        },
    )
}
```

--------------------------------

### Minimal egui_form Example with garde

Source: https://github.com/lucasmerlin/hello_egui/blob/main/crates/egui_form/README.md

Demonstrates a basic form with a single text input field using egui_form and the garde validation crate. Ensure garde is added as a dependency for validation.

```rust
use eframe::NativeOptions;
use egui::{TextEdit, Ui};
use egui_form::garde::{GardeReport, field_path};
use egui_form::{Form, FormField};
use garde::Validate;


#[derive(Debug, Default, Validate)]
struct Fields {
    #[garde(length(min = 2, max = 50))]
    user_name: String,
}

fn form_ui(ui: &mut Ui, fields: &mut Fields) {
    let mut form = Form::new().add_report(GardeReport::new(fields.validate()));

    FormField::new(&mut form, field_path!("user_name"))
        .label("User Name")
        .ui(ui, TextEdit::singleline(&mut fields.user_name));

    if let Some(Ok(())) = form.handle_submit(&ui.button("Submit"), ui) {
        println!("Submitted: {:?}", fields);
    }
}
```

--------------------------------

### Minimal egui_pull_to_refresh Usage

Source: https://github.com/lucasmerlin/hello_egui/blob/main/crates/egui_pull_to_refresh/README.md

This is the minimal example for using the `PullToRefresh` widget. Wrap your UI content within `PullToRefresh::new(loading).ui(...)` and handle the refresh logic when `response.should_refresh()` returns true.

```rust
use egui::{Ui};
use egui_pull_to_refresh::PullToRefresh;
// This is the minimal example. Wrap some ui in a [`PullToRefresh`] widget
// and refresh when should_refresh() returns true.
fn my_ui(ui: &mut Ui, count: u64, loading: bool) -> bool {
    let response = PullToRefresh::new(loading).ui(ui, |ui| {
        ui.add_space(ui.available_size().y / 4.0);
        ui.vertical_centered(|ui| {
            ui.set_height(ui.available_size().y);
            ui.label("Pull to refresh demo");

            ui.label(format!("Count: {}", count));
        });
    });

    response.should_refresh()
}
```

--------------------------------

### Using Filled and Outlined Material Icons in egui

Source: https://github.com/lucasmerlin/hello_egui/blob/main/crates/egui_material_icons/README.md

This example demonstrates how to use both filled and outlined variants of material icons. Ensure the 'outline' feature is enabled to use the outlined versions.

```rust
use egui_material_icons::icons::*;

fn init(ctx: &egui::Context) {
  egui_material_icons::initialize(ctx);
}

fn my_ui(ui: &mut egui::Ui) {
  ui.button(ICON_ADD);          // filled
  ui.button(ICON_ADD.outlined());  // outlined
}
```

--------------------------------

### Basic egui_flex Usage with Growing Buttons

Source: https://github.com/lucasmerlin/hello_egui/blob/main/crates/egui_flex/README.md

Demonstrates a basic horizontal flex layout with a growing button and a nested vertical flex container. Use this for creating responsive UIs where elements need to adapt to available space. Ensure `FlexAlignContent::Stretch` is used for nested flex items that should fill their parent's space.

```Rust
use eframe::NativeOptions;
use egui::{Button, CentralPanel};
use egui_flex::{item, Flex, FlexAlignContent};

fn main() -> eframe::Result {
    eframe::run_simple_native(file!(), NativeOptions::default(), |ctx, _frame| {
        CentralPanel::default().show(ctx, |ui| {
            Flex::horizontal().show(ui, |flex| {
                flex.add(item().grow(1.0), Button::new("Growing button"));
                flex.add(item(), Button::new("Non-growing button"));

                // Nested flex
                flex.add_flex(
                    item().grow(1.0),
                    // We need the FlexAlignContent::Stretch to make the buttons fill the space
                    Flex::vertical().align_content(FlexAlignContent::Stretch),
                    |flex| {
                        flex.add(item(), Button::new("Vertical button"));
                        flex.add(item(), Button::new("Another Vertical button"));
                    },
                );
            });
        });
    })
}

```

--------------------------------

### Update Changelogs for egui Updates

Source: https://github.com/lucasmerlin/hello_egui/blob/main/RELEASE.md

Run this command to update changelogs when egui is updated. Ensure the output is correct.

```bash
cargo run -p scripts --bin update_changelogs -- "- Update egui to 0.x"
```

--------------------------------

### Initialize and Use Material Icons in egui

Source: https://github.com/lucasmerlin/hello_egui/blob/main/crates/egui_material_icons/README.md

Register the material icons font with egui's context during initialization. Later, use the provided icon constants to display icons in UI elements such as buttons.

```rust
// register the fonts:
egui_material_icons::initialize(&cc.egui_ctx);

// later in some ui:
ui.button(egui_material_icons::icons::ICON_ADD);
```

--------------------------------

### Release Minor Version for All Crates

Source: https://github.com/lucasmerlin/hello_egui/blob/main/RELEASE.md

Use this command to release a new minor version for all crates in the workspace. This is particularly useful when egui is updated. Avoid using this for releasing a new crate from 0.1.0 to 0.2.0.

```bash
cargo release minor --workspace
```

--------------------------------

### Update Badges

Source: https://github.com/lucasmerlin/hello_egui/blob/main/RELEASE.md

Execute this command to update project badges after making changes.

```bash
cargo run -p scripts --bin update_badges
```

--------------------------------

### CSS Styling for Page Elements

Source: https://github.com/lucasmerlin/hello_egui/blob/main/crates/egui_webview/src/native_text_field.html

Basic CSS to set the margin, padding, and dimensions for head, body, and the input element to 100% of their container. Also styles the input for resizing and borders.

```css
head, body, #input { margin: 0; padding: 0; width: 100%; height: 100%; }
#input { resize: none; border: transparent 2px solid; }
#input:hover, #input:focus { border: darkgray 2px solid; }
```

--------------------------------

### Handle Window Focus Out Event

Source: https://github.com/lucasmerlin/hello_egui/blob/main/crates/egui_webview/src/native_text_field.html

Adds an event listener to post a 'FocusOut' message via IPC when the window loses focus.

```javascript
window.addEventListener("focusout", () => { window.ipc.postMessage(JSON.stringify({"type": "FocusOut"})); });
```

--------------------------------

### Handle Window Focus Event

Source: https://github.com/lucasmerlin/hello_egui/blob/main/crates/egui_webview/src/native_text_field.html

Adds an event listener to focus the HTML input element with the ID 'input' when the window gains focus.

```javascript
window.addEventListener("focus", () => { document.getElementById("input").focus(); })
```

--------------------------------

### Release Single Crate Version

Source: https://github.com/lucasmerlin/hello_egui/blob/main/RELEASE.md

Command to release a new version (patch, minor, or major) for a specific crate.

```bash
cargo release -p <crate_name> <patch|minor|major>
```

--------------------------------

### Release Individual Crates During Failure

Source: https://github.com/lucasmerlin/hello_egui/blob/main/RELEASE.md

A sequence of commands to release individual crates when a full workspace release fails. This is a workaround for issues like GitHub issue #829 in cargo-release.

```bash
cargo release minor --workspace --execute # *fails*
cargo release --execute -p hello_egui_utils_dev
cargo release --execute -p egui_virtual_list
cargo release --execute -p egui_inbox
cargo release --execute -p egui_infinite_scroll
```

--------------------------------

### Release Workspace with Specific Exclusions

Source: https://github.com/lucasmerlin/hello_egui/blob/main/RELEASE.md

This command releases all crates in the workspace except for the specified ones. It's part of a workaround for potential release failures.

```bash
cargo release --workspace --execute --exclude hello_egui_utils_dev --exclude egui_inbox --exclude egui_virtual_list --exclude egui_infinite_scroll  --exclude hello_egui_utils --exclude egui_animation
```

--------------------------------

### HTML Input Element with Event Handling

Source: https://github.com/lucasmerlin/hello_egui/blob/main/crates/egui_webview/src/native_text_field.html

An HTML input element that triggers an IPC message with its current text value whenever the input event occurs. It also has autofocus enabled.

```html
<_tag _parameters autofocus id="input" oninput="window.ipc.postMessage(JSON.stringify({ type: 'Input' , 'text': this.value }))">
```

--------------------------------

### Set Text Input Value

Source: https://github.com/lucasmerlin/hello_egui/blob/main/crates/egui_webview/src/native_text_field.html

JavaScript function to set the value of an HTML input element with the ID 'input'.

```javascript
function set_text(text) { document.getElementById("input").value = text; }
```

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