483 lines
16 KiB
Rust
483 lines
16 KiB
Rust
use std::f32::consts::TAU;
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use ely_gpui_component::{
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buttons::{Button, ButtonVariant},
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primitives::{FocusRing, Icon, IconName},
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theme::{ActiveTheme, Radius, TextSize},
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};
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use gpui::{
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AnyElement, App, ClipboardItem, FontWeight, HighlightStyle, InteractiveElement, IntoElement,
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ParentElement, PathBuilder, SharedString, StatefulInteractiveElement, Styled, StyledText,
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Transformation, Window, anchored, canvas, deferred, div, point, prelude::*, px, radians, svg,
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};
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use crate::{
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probe::probe,
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ui::{code, row, section, set},
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};
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pub fn boxes(cx: &App) -> impl IntoElement + use<> {
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let colors = &cx.theme().colors;
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section(
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"Box / View",
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"gpui's div() is the box. Ely adds nothing.",
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cx,
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)
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.child(
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row()
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.gap_4()
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.child(
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div()
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.size_16()
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.rounded_lg()
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.border_1()
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.border_color(colors.border)
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.bg(colors.surface),
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)
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.child(div().w_32().h_16().rounded_lg().bg(colors.sunken))
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.child(code("div()", cx)),
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)
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}
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pub fn text(cx: &App) -> impl IntoElement + use<> {
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let bold = HighlightStyle {
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font_weight: Some(FontWeight::SEMIBOLD),
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..Default::default()
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};
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section("Text", "A string is an element. StyledText adds runs.", cx).child(
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row()
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.gap_6()
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.child("Plain text, as a child.")
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.child(StyledText::new("One accent, used once.").with_highlights([(4..10, bold)]))
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.child(code("StyledText::new(…)", cx)),
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)
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}
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pub fn svg_demo(cx: &App) -> impl IntoElement + use<> {
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let color = cx.theme().colors.fg_muted;
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section(
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"Svg",
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"gpui's svg(). Any path from the asset source, tinted.",
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cx,
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)
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.child(
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row()
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.gap_6()
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.child(
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svg()
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.path(IconName::Compass.path())
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.size_12()
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.text_color(color),
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)
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.child(
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svg()
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.path(IconName::Compass.path())
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.size_12()
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.text_color(color)
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.with_transformation(Transformation::rotate(radians(0.6))),
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)
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.child(code("svg().path(…)", cx)),
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)
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}
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pub fn canvas_demo(cx: &App) -> impl IntoElement + use<> {
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let color = cx.theme().colors.focus;
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section("Canvas", "gpui's canvas(). Paint with paths.", cx).child(
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row()
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.gap_6()
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.child(
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div().w(px(320.0)).h(px(80.0)).child(
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canvas(
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|_, _, _| {},
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move |bounds, _, window, _| {
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let mut wave = PathBuilder::stroke(px(1.5));
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for step in 0..=96 {
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let t = step as f32 / 96.0;
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let x = bounds.origin.x + bounds.size.width * t;
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let lift = 0.5 - 0.38 * (t * TAU * 1.5).sin() * (1.0 - t * 0.5);
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let y = bounds.origin.y + bounds.size.height * lift;
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if step == 0 {
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wave.move_to(point(x, y));
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} else {
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wave.line_to(point(x, y));
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}
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}
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window.paint_path(wave.build().expect("wave path"), color);
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},
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)
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.size_full(),
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),
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)
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.child(code("canvas(prepaint, paint)", cx)),
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)
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}
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pub fn spacer(cx: &App) -> impl IntoElement + use<> {
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let colors = &cx.theme().colors;
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section(
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"Spacer",
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"flex_1() takes the slack. No component needed.",
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cx,
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)
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.child(
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div()
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.flex()
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.items_center()
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.w(px(420.0))
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.h_10()
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.px_3()
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.rounded(cx.theme().radius(Radius::Md))
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.border_1()
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.border_color(colors.border)
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.child(Icon::new(IconName::Menu).color(colors.fg_muted))
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.child(div().flex_1())
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.child(code("div().flex_1()", cx))
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.child(div().flex_1())
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.child(Icon::new(IconName::Settings).color(colors.fg_muted)),
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)
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}
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pub fn portal(window: &mut Window, cx: &mut App) -> impl IntoElement + use<> {
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let open = window.use_keyed_state("prim-portal", cx, |_, _| false);
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let shown = *open.read(cx);
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let theme = cx.theme();
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let note = div()
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.w(px(260.0))
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.p_3()
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.rounded(theme.radius(Radius::Lg))
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.bg(theme.colors.overlay)
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.border_1()
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.border_color(theme.colors.border)
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.shadow(theme.elevation(ely_gpui_component::theme::Elevation::Floating))
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.text_size(theme.text_size(TextSize::Sm))
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.child("Painted last, above the clipped box.");
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section(
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"Portal",
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"deferred(anchored()) escapes clipping and paints on top.",
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cx,
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)
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.child(
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row()
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.gap_6()
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.child(
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div()
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.flex()
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.items_start()
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.w(px(220.0))
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.h_16()
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.p_3()
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.overflow_hidden()
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.rounded(theme.radius(Radius::Md))
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.border_1()
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.border_color(theme.colors.border)
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.child(probe(
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"portal-toggle",
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Button::new(
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"portal-toggle",
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if shown { "Hide note" } else { "Show note" },
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)
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.on_click(move |_, _, cx| {
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open.update(cx, |open, cx| {
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*open = !*open;
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cx.notify();
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})
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}),
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))
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.when(shown, |clip| {
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clip.child(deferred(
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anchored().offset(point(px(0.0), px(8.0))).child(note),
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))
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}),
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)
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.child(code("deferred(anchored())", cx)),
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)
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}
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fn framed(title: &'static str, body: impl IntoElement, cx: &App) -> impl IntoElement {
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let theme = cx.theme();
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div()
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.flex()
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.flex_col()
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.gap_2()
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.p_3()
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.w(px(180.0))
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.rounded(theme.radius(Radius::Lg))
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.border_1()
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.border_color(theme.colors.border)
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.child(
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div()
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.text_size(theme.text_size(TextSize::Xs))
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.text_color(theme.colors.fg_subtle)
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.child(title),
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)
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.child(body)
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}
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pub fn slot(cx: &App) -> impl IntoElement + use<> {
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section(
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"Slot",
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"Take impl IntoElement. The caller fills the hole.",
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cx,
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)
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.child(
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row()
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.gap_4()
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.child(framed("slot: icon", Icon::new(IconName::Sparkles), cx))
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.child(framed(
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"slot: button",
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Button::new("slot-button", "Save").primary(),
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cx,
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))
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.child(code("fn framed(body: impl IntoElement)", cx)),
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)
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}
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pub fn show(window: &mut Window, cx: &mut App) -> impl IntoElement + use<> {
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let on = window.use_keyed_state("prim-show", cx, |_, _| true);
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let shown = *on.read(cx);
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let muted = cx.theme().colors.fg_muted;
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section(
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"Show / When",
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".when() and .when_some() branch inside a builder.",
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cx,
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)
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.child(
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row()
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.gap_4()
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.child(
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Button::new("show-toggle", if shown { "Hide" } else { "Show" }).on_click(
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move |_, _, cx| {
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on.update(cx, |on, cx| {
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*on = !*on;
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cx.notify();
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})
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},
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),
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)
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.when(shown, |row| {
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row.child(div().text_color(muted).child("Here while true."))
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})
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.child(code(".when(cond, |el| …)", cx)),
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)
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}
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pub fn each(cx: &App) -> impl IntoElement + use<> {
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let theme = cx.theme();
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let steps = ["Draft", "Review", "Ship"];
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section("For / Each", ".children() takes any iterator.", cx).child(
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row()
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.gap_6()
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.children(steps.iter().enumerate().map(|(ix, step)| {
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div()
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.flex()
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.items_center()
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.gap_2()
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.child(
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div()
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.font_family(theme.mono_family.clone())
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.text_size(theme.text_size(TextSize::Xs))
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.text_color(theme.colors.fg_subtle)
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.child(SharedString::from(format!("{:02}", ix + 1))),
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)
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.child(*step)
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}))
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.child(code(".children(iter)", cx)),
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)
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}
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fn pair(cx: &App) -> [AnyElement; 2] {
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let muted = cx.theme().colors.fg_muted;
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[
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Icon::new(IconName::Layers).color(muted).into_any_element(),
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div()
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.text_color(muted)
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.child("two siblings, no wrapper")
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.into_any_element(),
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]
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}
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pub fn fragment(cx: &App) -> impl IntoElement + use<> {
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section(
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"Fragment",
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"Return several elements; the parent adopts them.",
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cx,
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)
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.child(
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row()
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.gap_2()
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.children(pair(cx))
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.child(div().w_6())
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.child(code(".children([a, b])", cx)),
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)
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}
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pub fn click_outside(window: &mut Window, cx: &mut App) -> impl IntoElement + use<> {
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let open = window.use_keyed_state("prim-outside", cx, |_, _| false);
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let shown = *open.read(cx);
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let theme = cx.theme();
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let close = open.clone();
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section(
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"ClickOutside",
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"on_mouse_down_out closes what the pointer left.",
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cx,
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)
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.child(
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row()
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.gap_4()
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.child(
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Button::new("outside-open", "Open panel")
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.disabled(shown)
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.on_click(move |_, _, cx| {
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open.update(cx, |open, cx| {
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*open = true;
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cx.notify();
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})
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}),
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)
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.when(shown, |row| {
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row.child(
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div()
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.id("outside-panel")
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.px_3()
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.py_2()
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.rounded(theme.radius(Radius::Md))
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.bg(theme.colors.sunken)
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.child("Click anywhere else.")
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.on_mouse_down_out(move |_, _, cx| {
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close.update(cx, |open, cx| {
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*open = false;
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cx.notify();
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})
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}),
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)
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})
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.child(code(".on_mouse_down_out(…)", cx)),
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)
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}
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pub fn hover_area(window: &mut Window, cx: &mut App) -> impl IntoElement + use<> {
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let inside = window.use_keyed_state("prim-hover", cx, |_, _| false);
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let hovered = *inside.read(cx);
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let theme = cx.theme();
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section(
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"HoverArea",
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"on_hover reports enter and leave. .hover() restyles.",
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cx,
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)
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.child(
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row()
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.gap_4()
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.child(
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div()
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.id("hover-area")
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.w(px(220.0))
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.h_16()
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.flex()
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.items_center()
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.justify_center()
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.rounded(theme.radius(Radius::Lg))
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.border_1()
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.border_color(theme.colors.border)
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.hover(|style| style.bg(theme.colors.hover))
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.child(if hovered {
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"Pointer inside"
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} else {
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"Pointer outside"
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})
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.on_hover(move |hovered, _, cx| {
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inside.update(cx, |inside, cx| {
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*inside = *hovered;
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cx.notify();
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})
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}),
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)
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.child(code(".on_hover(…)", cx)),
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)
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}
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pub fn keyboard(window: &mut Window, cx: &mut App) -> impl IntoElement + use<> {
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let focus = window.use_keyed_state("prim-keys-focus", cx, |_, cx| cx.focus_handle());
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let last = window.use_keyed_state("prim-keys", cx, |_, _| SharedString::from("—"));
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let handle = focus.read(cx).clone();
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let shown = last.read(cx).clone();
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let theme = cx.theme();
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section(
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"KeyboardHandler",
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"on_key_down on a focused element. Click, then type.",
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cx,
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)
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.child(
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row()
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.gap_4()
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.child(
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div()
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.id("keys")
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.track_focus(&handle)
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.w(px(220.0))
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.h_16()
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.flex()
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.items_center()
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.justify_center()
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.rounded(theme.radius(Radius::Lg))
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.border_1()
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.border_color(theme.colors.border)
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.font_family(theme.mono_family.clone())
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.focus_ring(cx)
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.child(shown)
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.on_key_down(move |event, _, cx| {
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let stroke = SharedString::from(event.keystroke.to_string());
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last.update(cx, |last, cx| {
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*last = stroke;
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cx.notify();
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})
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}),
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)
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.child(code(".on_key_down(…)", cx)),
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)
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}
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pub fn clipboard(window: &mut Window, cx: &mut App) -> impl IntoElement + use<> {
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let pasted = window.use_keyed_state("prim-clip", cx, |_, _| None::<SharedString>);
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let shown = pasted.read(cx).clone();
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let muted = cx.theme().colors.fg_muted;
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section(
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"Clipboard",
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"write_to_clipboard and read_from_clipboard_async on App; a browser asks before it hands the clipboard over.",
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cx,
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)
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.child(
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row()
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.gap_3()
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.child(
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Button::new("clip-copy", "Copy “Ely”")
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.icon(IconName::Copy)
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.on_click(|_, _, cx| {
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cx.write_to_clipboard(ClipboardItem::new_string("Ely".into()))
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}),
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)
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.child(
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Button::new("clip-paste", "Paste")
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.variant(ButtonVariant::Ghost)
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.icon(IconName::Clipboard)
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.on_click(move |_, _, cx| {
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let (read, pasted) = (cx.read_from_clipboard_async(), pasted.clone());
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cx.spawn(async move |cx| {
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let said: SharedString = match read.await {
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Ok(item) => match item.and_then(|item| item.text()) {
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Some(text) => text.into(),
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None => "The clipboard holds no text.".into(),
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},
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Err(error) => format!("The clipboard stayed shut: {error:?}").into(),
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};
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cx.update(|cx| set(&pasted, Some(said), cx));
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})
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.detach();
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}),
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)
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.when_some(shown, |row, text| {
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row.child(div().text_color(muted).child(text))
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})
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.child(code("cx.write_to_clipboard(…)", cx)),
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)
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}
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