uzor 1.3.1

Core UI engine — geometry, interaction, input state
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//! `ToolbarBuilder` — chainable wrapper around
//! `register_layout_manager_toolbar`.
//!
//! Toolbars are anchored to **edge slots** (top / bottom / left / right of the
//! dock area), not to a free overlay rect.  The `slot_id` arg is the edge
//! slot id added via `EdgePanels::add(...)` during `App::init`.
//!
//! Usage:
//! ```ignore
//! let h = layout.add_toolbar("top-toolbar");
//! lm::toolbar(&h, "top-toolbar")
//!     .start(&top_items)
//!     .end(&clock_items)
//!     .build(&mut layout, &mut render);
//! ```

use crate::layout::docking::DockPanel;
use crate::layout::{LayoutManager, LayoutNodeId, ResizeEdge, StyleManager, ToolbarHandle, ToolbarNode};
use crate::render::RenderContext;
use crate::types::OverflowMode;
use crate::ui::widgets::composite::toolbar::input::register_layout_manager_toolbar;
use crate::ui::widgets::composite::toolbar::settings::ToolbarSettings;
use crate::ui::widgets::composite::toolbar::style::{DefaultToolbarStyle, ToolbarStyle};
use crate::ui::widgets::composite::toolbar::theme::{DefaultToolbarTheme, ToolbarTheme};
use crate::ui::widgets::composite::toolbar::types::{
    ChromeStripView, ToolbarItem, ToolbarRenderKind, ToolbarSection, ToolbarView,
};

// =============================================================================
// StyledToolbarTheme — reads bg/fg/accent from StyleManager, delegates rest
// =============================================================================

struct StyledToolbarTheme {
    bg:               String,
    item_bg_hover:    String,
    item_bg_active:   String,
    item_text_normal: String,
    item_text_active: String,
    fallback:         DefaultToolbarTheme,
}

impl StyledToolbarTheme {
    fn from_styles(s: &StyleManager) -> Self {
        let accent     = s.color_or_owned("accent",     "#2962ff");
        let accent_dim = s.color_or_owned("accent_dim", "rgba(41,98,255,0.15)");
        Self {
            bg:               s.color_or_owned("surface",       "#1e222d"),
            item_bg_hover:    s.color_or_owned("surface_raised","#2a2e39"),
            item_bg_active:   accent_dim,
            item_text_normal: s.color_or_owned("fg_1",          "#d1d4dc"),
            item_text_active: accent,
            fallback:         DefaultToolbarTheme,
        }
    }
}

impl ToolbarTheme for StyledToolbarTheme {
    fn bg(&self)                     -> &str { &self.bg }
    fn separator(&self)              -> &str { self.fallback.separator() }
    fn item_bg_normal(&self)         -> &str { self.fallback.item_bg_normal() }
    fn item_bg_hover(&self)          -> &str { &self.item_bg_hover }
    fn item_bg_active(&self)         -> &str { &self.item_bg_active }
    fn item_bg_pressed(&self)        -> &str { self.fallback.item_bg_pressed() }
    fn item_text_normal(&self)       -> &str { &self.item_text_normal }
    fn item_text_hover(&self)        -> &str { self.fallback.item_text_hover() }
    fn item_text_active(&self)       -> &str { &self.item_text_active }
    fn item_text_disabled(&self)     -> &str { self.fallback.item_text_disabled() }
    fn icon_normal(&self)            -> &str { &self.item_text_normal }
    fn icon_hover(&self)             -> &str { self.fallback.icon_hover() }
    fn icon_active(&self)            -> &str { &self.item_text_active }
    fn icon_disabled(&self)          -> &str { self.fallback.icon_disabled() }
    fn scroll_chevron_color(&self)   -> &str { self.fallback.scroll_chevron_color() }
    fn label_text(&self)             -> &str { self.fallback.label_text() }
    fn clock_text(&self)             -> &str { &self.item_text_normal }
    fn chrome_tab_bg_active(&self)   -> &str { self.fallback.chrome_tab_bg_active() }
    fn chrome_tab_bg_inactive(&self) -> &str { self.fallback.chrome_tab_bg_inactive() }
    fn chrome_tab_bg_hover(&self)    -> &str { &self.item_bg_hover }
    fn chrome_tab_text_active(&self) -> &str { self.fallback.chrome_tab_text_active() }
    fn chrome_tab_text_inactive(&self) -> &str { self.fallback.chrome_tab_text_inactive() }
    fn chrome_ctrl_hover(&self)      -> &str { self.fallback.chrome_ctrl_hover() }
    fn chrome_close_hover(&self)     -> &str { self.fallback.chrome_close_hover() }
    fn chrome_ctrl_icon(&self)       -> &str { &self.item_text_normal }
    fn color_swatch_border(&self)    -> &str { self.fallback.color_swatch_border() }
    fn split_chevron(&self)          -> &str { self.fallback.split_chevron() }
    fn split_divider(&self)          -> &str { self.fallback.split_divider() }
}

fn toolbar_settings_from_styles(s: &StyleManager) -> ToolbarSettings {
    ToolbarSettings {
        theme: Box::new(StyledToolbarTheme::from_styles(s)),
        style: Box::<DefaultToolbarStyle>::default(),
    }
}

/// Chainable builder for an edge-anchored toolbar.
pub struct ToolbarBuilder<'a> {
    handle:      &'a ToolbarHandle,
    slot_id:     &'a str,
    parent:      LayoutNodeId,
    start:       &'a [ToolbarItem<'a>],
    center:      &'a [ToolbarItem<'a>],
    end:         &'a [ToolbarItem<'a>],
    chrome:      Option<ChromeStripView<'a>>,
    overflow:    OverflowMode,
    resize_edge: Option<ResizeEdge>,
    settings:    Option<ToolbarSettings>,
    /// Override only the colour-token bundle.
    theme_override: Option<Box<dyn ToolbarTheme>>,
    /// Override only the geometry bundle.
    style_override: Option<Box<dyn ToolbarStyle>>,
    kind:        ToolbarRenderKind,
}

/// Entry point: start a `ToolbarBuilder` for the given handle + edge slot.
pub fn toolbar<'a>(handle: &'a ToolbarHandle, slot_id: &'a str) -> ToolbarBuilder<'a> {
    ToolbarBuilder::new(handle, slot_id)
}

impl<'a> ToolbarBuilder<'a> {
    pub fn new(handle: &'a ToolbarHandle, slot_id: &'a str) -> Self {
        Self {
            handle,
            slot_id,
            parent:      LayoutNodeId::ROOT,
            start:       &[],
            center:      &[],
            end:         &[],
            chrome:      None,
            overflow:    OverflowMode::Clip,
            resize_edge: None,
            settings:    None,
            theme_override: None,
            style_override: None,
            kind:        ToolbarRenderKind::Horizontal,
        }
    }

    pub fn parent(mut self, p: LayoutNodeId) -> Self { self.parent = p; self }

    /// Items in the start (left/top) section.
    pub fn start(mut self, items: &'a [ToolbarItem<'a>]) -> Self { self.start = items; self }
    /// Items in the center section.
    pub fn center(mut self, items: &'a [ToolbarItem<'a>]) -> Self { self.center = items; self }
    /// Items in the end (right/bottom) section.
    pub fn end(mut self, items: &'a [ToolbarItem<'a>]) -> Self { self.end = items; self }

    /// ChromeStrip-specific data (only used by `ChromeStrip` kind).
    pub fn chrome(mut self, c: ChromeStripView<'a>) -> Self { self.chrome = Some(c); self }

    /// Item overflow strategy (default `Clip`).
    pub fn overflow(mut self, m: OverflowMode) -> Self { self.overflow = m; self }

    /// Which edge exposes a resize handle (default `None`).
    pub fn resize_edge(mut self, e: ResizeEdge) -> Self { self.resize_edge = Some(e); self }

    pub fn settings(mut self, s: ToolbarSettings) -> Self { self.settings = Some(s); self }
    pub fn kind(mut self, k: ToolbarRenderKind) -> Self { self.kind = k; self }

    /// Override only the toolbar theme (colour tokens).
    pub fn theme(mut self, t: Box<dyn ToolbarTheme>) -> Self {
        self.theme_override = Some(t);
        self
    }

    /// Override only the toolbar style (geometry — height, gaps, padding …).
    pub fn style(mut self, s: Box<dyn ToolbarStyle>) -> Self {
        self.style_override = Some(s);
        self
    }

    pub fn build<P: DockPanel>(
        self,
        layout: &mut LayoutManager<P>,
        render: &mut dyn RenderContext,
    ) -> Option<ToolbarNode> {
        let view = ToolbarView {
            start:       ToolbarSection { items: self.start },
            center:      ToolbarSection { items: self.center },
            end:         ToolbarSection { items: self.end },
            chrome:      self.chrome,
            overflow:    self.overflow,
            resize_edge: self.resize_edge,
        };

        let mut settings = self.settings.unwrap_or_else(|| toolbar_settings_from_styles(layout.styles()));
        if let Some(t) = self.theme_override { settings.theme = t; }
        if let Some(s) = self.style_override { settings.style = s; }

        register_layout_manager_toolbar(
            layout,
            render,
            self.parent,
            self.slot_id,
            self.handle,
            &view,
            &settings,
            &self.kind,
        )
    }
}