422 lines
16 KiB
Rust
422 lines
16 KiB
Rust
use std::rc::Rc;
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use assets::CustomIconName;
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use dock::{BasePanel, DockArea, DockPlacement, Panel, PanelEvent, panel_handle};
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use gpui::prelude::*;
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use gpui::{
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AnyElement, App, Context, Entity, EventEmitter, FocusHandle, Focusable, Pixels, Render,
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SharedString, Size, WeakEntity, Window, div, px, size,
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};
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use gpui_component::button::{Button, ButtonVariants};
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use gpui_component::dialog::{DialogDescription, DialogFooter, DialogHeader, DialogTitle};
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use gpui_component::form::{field, v_form};
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use gpui_component::input::{Input, InputState, Textarea, TextareaState};
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use gpui_component::scroll::Scrollbar;
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use gpui_component::{
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ActiveTheme, Icon, VirtualListScrollHandle, WindowExt, h_flex, v_flex, v_virtual_list,
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};
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use nostr::prelude::EventId;
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use signed_core::{RepoStatus, activity_subject};
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use signed_state::{ProfileStore, RepoStore};
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use signed_ui::image_cache::{MAX_IMAGES, image_cache};
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use signed_ui::{SegmentButton, UserAvatar, placeholder, status_badge};
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use utils::relative_time;
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use super::issue_detail::IssueDetailView;
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/// Height of one issue row in the virtual list: `py_2` padding, a 32px
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/// title line (`h_8`), a 24px meta line (`h_6`) and the 1px bottom border.
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const ISSUE_ROW_HEIGHT: f32 = 73.;
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/// Status filter of the issues list, chosen via the header's filter buttons.
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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enum IssueFilter {
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/// Every issue, regardless of status.
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All,
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/// Issues whose resolved status is [`RepoStatus::Open`].
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Open,
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/// Issues whose resolved status is [`RepoStatus::Closed`] or
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/// [`RepoStatus::Applied`] (both are "done" states).
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Closed,
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}
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impl IssueFilter {
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/// Whether an issue with `status` is included by this filter.
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fn matches(self, status: RepoStatus) -> bool {
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match self {
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Self::All => true,
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Self::Open => status == RepoStatus::Open,
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Self::Closed => matches!(status, RepoStatus::Closed | RepoStatus::Applied),
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}
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}
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}
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pub struct IssuesView {
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focus_handle: FocusHandle,
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/// Dock area the issue detail panel is opened in.
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dock_area: WeakEntity<DockArea>,
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/// Repo store holding the issues and their statuses.
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store: Entity<RepoStore>,
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/// Display name of the repository, for the panel title.
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repo_name: SharedString,
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/// Filter selected in the header filter buttons.
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filter: IssueFilter,
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/// Per-row heights of the virtual list.
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item_sizes: Rc<Vec<Size<Pixels>>>,
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/// Number of rows [`Self::item_sizes`] was built for (the filtered issue count).
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issue_len: usize,
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/// Indices into the store's `issues` matching [`Self::filter`]; the
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/// virtual list renders this slice. Rebuilt only when the store
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/// version or the filter changes, keyed by [`Self::cache_key`].
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visible_issues: Vec<usize>,
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/// Header counts `(total, open, closed)`, rebuilt with
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/// [`Self::visible_issues`].
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counts: (usize, usize, usize),
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/// Store version and filter the cached rows/counts were built from.
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cache_key: Option<(u64, IssueFilter)>,
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/// Virtual list state of the issues list.
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scroll_handle: VirtualListScrollHandle,
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}
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impl IssuesView {
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pub fn new(
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dock_area: WeakEntity<DockArea>,
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store: Entity<RepoStore>,
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repo_name: SharedString,
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_window: &mut Window,
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cx: &mut Context<Self>,
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) -> Self {
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Self {
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focus_handle: cx.focus_handle(),
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dock_area,
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store,
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repo_name,
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filter: IssueFilter::Open,
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item_sizes: Rc::new(Vec::new()),
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issue_len: 0,
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visible_issues: Vec::new(),
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counts: (0, 0, 0),
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cache_key: None,
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scroll_handle: VirtualListScrollHandle::new(),
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}
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}
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/// Open the detail panel of `issue_id` at the bottom of the dock area.
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fn open_issue_detail(
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&mut self,
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issue_id: EventId,
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window: &mut Window,
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cx: &mut Context<Self>,
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) {
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let Some(dock_area) = self.dock_area.upgrade() else {
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return;
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};
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let panel = cx.new(|cx| IssueDetailView::new(self.store.clone(), issue_id, window, cx));
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dock_area.update(cx, |dock_area, cx| {
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dock_area.add_panel_view(panel_handle(panel), DockPlacement::Center, None, window, cx);
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});
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}
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/// Render one row of the issue list; `ix` is the row index and
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/// `issue_ix` the index of the issue in the store's `issues`.
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fn render_row(&self, ix: usize, issue_ix: usize, cx: &mut Context<Self>) -> AnyElement {
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let issue = &self.store.read(cx).issues[issue_ix];
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let title = activity_subject(issue);
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let id_hex = issue.id.to_hex();
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let profile = ProfileStore::global(cx).read(cx).get(&issue.pubkey);
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let author = profile.name();
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let picture = profile.picture();
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let age = relative_time(issue.created_at);
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let status = self.store.read(cx).status_of(issue);
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let issue_id = issue.id;
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h_flex()
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.id(ix)
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.w_full()
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.gap_4()
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.px_4()
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.py_2()
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.border_b_1()
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.border_color(cx.theme().border)
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.items_start()
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.on_click(cx.listener(move |this, _event, window, cx| {
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this.open_issue_detail(issue_id, window, cx);
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}))
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.child(status_badge(status, cx))
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.child(
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v_flex()
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.flex_1()
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.child(
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div()
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.h_8()
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.min_w_0()
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.text_ellipsis()
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.whitespace_nowrap()
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.line_clamp(1)
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.text_sm()
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.child(title),
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)
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.child(
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h_flex()
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.h_6()
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.gap_2()
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.text_xs()
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.child(
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h_flex()
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.gap_1()
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.child(UserAvatar::new(author.clone()).picture(picture))
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.child(div().child(author)),
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)
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.child(SharedString::from("opened"))
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.child(
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div()
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.text_color(cx.theme().muted_foreground)
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.child(SharedString::from(&id_hex[..8])),
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)
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.child(SharedString::from(age)),
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),
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)
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.hover(|this| this.bg(cx.theme().list_hover))
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.into_any_element()
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}
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fn render_header(&self, cx: &mut Context<Self>) -> AnyElement {
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// Counts of the last list rebuild (`render` rebuilds first when the
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// store version or filter changed, so this is never stale).
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let (total, open, closed) = self.counts;
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h_flex()
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.px_4()
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.w_full()
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.gap_3()
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.border_b_1()
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.border_color(cx.theme().border)
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.bg(cx.theme().muted.opacity(0.5))
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.child(
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h_flex()
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.h_12()
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.gap_2()
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.child(
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SegmentButton::new("all", "All")
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.icon(Icon::new(CustomIconName::GitIssueDone))
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.count(total)
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.selected(self.filter == IssueFilter::All)
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.on_click(cx.listener(|this, _event, _window, cx| {
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this.filter = IssueFilter::All;
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cx.notify();
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})),
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)
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.child(
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SegmentButton::new("open", "Open")
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.icon(Icon::new(CustomIconName::GitIssueOpen))
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.count(open)
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.selected(self.filter == IssueFilter::Open)
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.on_click(cx.listener(|this, _event, _window, cx| {
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this.filter = IssueFilter::Open;
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cx.notify();
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})),
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)
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.child(
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SegmentButton::new("closed", "Closed")
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.icon(Icon::new(CustomIconName::GitIssueClosed))
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.count(closed)
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.selected(self.filter == IssueFilter::Closed)
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.on_click(cx.listener(|this, _event, _window, cx| {
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this.filter = IssueFilter::Closed;
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cx.notify();
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})),
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),
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)
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.child(div().flex_1())
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.child(
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SegmentButton::new("new", "New issue")
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.icon(Icon::new(CustomIconName::CirclePlus))
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.primary()
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.on_click(cx.listener(|this, _event, window, cx| {
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open_new_issue_dialog(this.store.clone(), window, cx);
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})),
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)
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.into_any_element()
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}
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}
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/// Open the "new issue" dialog: a title and a content input that submit
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/// through [`RepoStore::open_issue`] when confirmed.
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pub(super) fn open_new_issue_dialog(store: Entity<RepoStore>, window: &mut Window, cx: &mut App) {
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let subject = cx.new(|cx| InputState::new(window, cx).placeholder("Issue title"));
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let content = cx.new(|cx| TextareaState::new(window, cx).placeholder("Describe the issue..."));
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window.open_dialog(cx, move |dialog, _window, _cx| {
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let subject = subject.clone();
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let content = content.clone();
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let store = store.clone();
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dialog
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.keyboard(true)
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.close_button(true)
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.content(move |body, _window, _cx| {
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body.child(
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DialogHeader::new()
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.child(DialogTitle::new().child("New issue"))
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.child(
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DialogDescription::new()
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.child("Report a bug, ask a question, or propose a change."),
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),
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)
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.child(
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v_form()
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.child(
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field()
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.label("Title")
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.required(true)
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.child(Input::new(&subject)),
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)
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.child(
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field()
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.label("Content")
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.child(Textarea::new(&content).h(px(160.))),
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),
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)
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.child(
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DialogFooter::new().justify_end().child(
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Button::new("submit")
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.primary()
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.label("Create issue")
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.tooltip("Create issue")
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.on_click({
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let subject = subject.clone();
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let content = content.clone();
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let store = store.clone();
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move |_event, window, cx| {
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let subject = subject.read(cx).value().to_string();
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let content = content.read(cx).value().to_string();
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let subject = (!subject.is_empty()).then_some(subject);
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store.update(cx, |store, cx| {
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store.open_issue(subject, content, cx);
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});
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window.close_dialog(cx);
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}
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}),
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),
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)
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})
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});
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}
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impl BasePanel for IssuesView {
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fn panel_name(&self) -> &'static str {
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"issues"
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}
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}
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impl Panel for IssuesView {
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fn title(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
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div().child(SharedString::from(format!("{}/issues", self.repo_name)))
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}
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}
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impl EventEmitter<PanelEvent> for IssuesView {}
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impl Focusable for IssuesView {
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fn focus_handle(&self, _cx: &App) -> FocusHandle {
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self.focus_handle.clone()
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}
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}
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impl Render for IssuesView {
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fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
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let filter = self.filter;
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// Rebuild the filtered rows and header counts only when the store
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// refreshed or the filter changed; other renders reuse the cache.
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let version = self.store.read(cx).version();
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if self.cache_key != Some((version, filter)) {
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let store = self.store.read(cx);
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let mut counts = (0usize, 0usize, 0usize);
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self.visible_issues = store
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.issues
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.iter()
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.enumerate()
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.filter_map(|(ix, issue)| {
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let status = store.status_of(issue);
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counts.0 += 1;
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match status {
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RepoStatus::Open => counts.1 += 1,
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RepoStatus::Closed => counts.2 += 1,
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RepoStatus::Draft | RepoStatus::Applied => {}
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}
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filter.matches(status).then_some(ix)
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})
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.collect();
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self.counts = counts;
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self.cache_key = Some((version, filter));
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}
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let count = self.visible_issues.len();
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// The virtual list's item count comes from `item_sizes`; rebuild it
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// whenever the filtered issue count changes.
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if count != self.issue_len {
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self.issue_len = count;
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self.item_sizes = Rc::new(vec![size(px(0.), px(ISSUE_ROW_HEIGHT)); count]);
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}
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let sizes = self.item_sizes.clone();
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let scroll_handle = self.scroll_handle.clone();
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v_flex()
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.size_full()
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.image_cache(image_cache("issues", MAX_IMAGES))
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.child(self.render_header(cx))
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.child(
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v_flex()
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.relative()
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.flex_1()
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.min_h_0()
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.w_full()
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.when(count > 0, |this| {
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this.child(
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v_virtual_list(
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cx.entity().clone(),
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"issues",
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sizes,
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move |this, range, _window, cx| {
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range
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.map(|ix| {
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let issue = this.visible_issues[ix];
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this.render_row(ix, issue, cx)
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})
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.collect()
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},
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)
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.track_scroll(&scroll_handle)
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.size_full(),
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)
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.child(
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div()
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.absolute()
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.top_0()
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.left_0()
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.right_0()
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.bottom_0()
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.child(Scrollbar::vertical(&scroll_handle)),
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)
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})
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.when(count == 0, |this| {
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let message = match filter {
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IssueFilter::All => "No issues",
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IssueFilter::Open => "No open issues",
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IssueFilter::Closed => "No closed issues",
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};
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this.child(placeholder(message, cx))
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}),
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)
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.into_any_element()
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}
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}
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