[WIP] Daemon & CLI

iota-cli/src/controls/button.rs

@@ -0,0 +1,72 @@
+use crate::theme::ResolvedTheme;
+use ratatui::{
+    Frame,
+    layout::{Alignment, Rect},
+    text::Span,
+    widgets::{Block, Borders, Paragraph},
+};
+use unicode_width::UnicodeWidthStr;
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum ButtonIntent {
+    Primary,
+    Neutral,
+    Cancel,
+    Destructive,
+}
+pub struct ActionButton<'a> {
+    pub label: &'a str,
+    pub intent: ButtonIntent,
+    pub focused: bool,
+    pub enabled: bool,
+}
+pub fn render_button(
+    frame: &mut Frame,
+    area: Rect,
+    button: ActionButton<'_>,
+    theme: &ResolvedTheme,
+) {
+    let style = if !button.enabled {
+        theme.buttons.disabled
+    } else {
+        match (button.intent, button.focused) {
+            (ButtonIntent::Primary, true) => theme.buttons.primary_focused,
+            (ButtonIntent::Primary, false) => theme.buttons.primary,
+            (ButtonIntent::Neutral, true) => theme.buttons.neutral_focused,
+            (ButtonIntent::Neutral, false) => theme.buttons.neutral,
+            (ButtonIntent::Cancel, true) => theme.buttons.cancel_focused,
+            (ButtonIntent::Cancel, false) => theme.buttons.cancel,
+            (ButtonIntent::Destructive, _) => theme.buttons.destructive,
+        }
+    };
+    frame.render_widget(
+        Paragraph::new(Span::styled(button.label, style))
+            .alignment(Alignment::Center)
+            .block(Block::default().borders(Borders::ALL)),
+        area,
+    );
+}
+pub fn horizontal_button_widths(available: u16, minimums: &[u16]) -> Option<Vec<u16>> {
+    let required = minimums
+        .iter()
+        .try_fold(0u16, |total, width| total.checked_add(*width))?;
+    if required > available {
+        return None;
+    }
+    if minimums.is_empty() {
+        return Some(Vec::new());
+    }
+    let extra = available - required;
+    let count = minimums.len() as u16;
+    Some(
+        minimums
+            .iter()
+            .enumerate()
+            .map(|(index, width)| width + extra / count + u16::from((index as u16) < extra % count))
+            .collect(),
+    )
+}
+pub fn button_minimum_width(label: &str) -> u16 {
+    UnicodeWidthStr::width(label)
+        .saturating_add(2)
+        .min(u16::MAX as usize) as u16
+}