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use std::ops::Range;
use gpui::{
div, App, Context, Div, InteractiveElement as _, IntoElement, ParentElement as _, Stateful,
Styled as _, Window,
};
use crate::{
h_flex,
popup_menu::PopupMenu,
table::{loading::Loading, Column, ColumnSort, Table},
ActiveTheme as _, Icon, IconName, Size,
};
#[allow(unused)]
pub trait TableDelegate: Sized + 'static {
/// Return the number of columns in the table.
fn columns_count(&self, cx: &App) -> usize;
/// Return the number of rows in the table.
fn rows_count(&self, cx: &App) -> usize;
/// Returns the table column at the given index.
///
/// This only call on Table prepare or refresh.
fn column(&self, col_ix: usize, cx: &App) -> &Column;
/// Perform sort on the column at the given index.
fn perform_sort(
&mut self,
col_ix: usize,
sort: ColumnSort,
window: &mut Window,
cx: &mut Context<Table<Self>>,
) {
}
/// Render the header cell at the given column index, default to the column name.
fn render_th(
&self,
col_ix: usize,
window: &mut Window,
cx: &mut Context<Table<Self>>,
) -> impl IntoElement {
div()
.size_full()
.child(self.column(col_ix, cx).name.clone())
}
/// Render the row at the given row and column.
fn render_tr(
&self,
row_ix: usize,
window: &mut Window,
cx: &mut Context<Table<Self>>,
) -> Stateful<Div> {
h_flex().id(("row", row_ix))
}
/// Render the context menu for the row at the given row index.
fn context_menu(&self, row_ix: usize, menu: PopupMenu, window: &Window, cx: &App) -> PopupMenu {
menu
}
/// Render cell at the given row and column.
fn render_td(
&self,
row_ix: usize,
col_ix: usize,
window: &mut Window,
cx: &mut Context<Table<Self>>,
) -> impl IntoElement;
/// Move the column at the given `col_ix` to insert before the column at the given `to_ix`.
fn move_column(
&mut self,
col_ix: usize,
to_ix: usize,
window: &mut Window,
cx: &mut Context<Table<Self>>,
) {
}
/// Return a Element to show when table is empty.
fn render_empty(&self, window: &mut Window, cx: &mut Context<Table<Self>>) -> impl IntoElement {
h_flex()
.size_full()
.justify_center()
.text_color(cx.theme().muted_foreground.opacity(0.6))
.child(Icon::new(IconName::Inbox).size_12())
.into_any_element()
}
/// Return true to show the loading view.
fn loading(&self, cx: &App) -> bool {
false
}
/// Return a Element to show when table is loading, default is built-in Skeleton loading view.
///
/// The size is the size of the Table.
fn render_loading(
&self,
size: Size,
window: &mut Window,
cx: &mut Context<Table<Self>>,
) -> impl IntoElement {
Loading::new().size(size)
}
/// Return true to enable load more data when scrolling to the bottom.
///
/// Default: true
fn is_eof(&self, cx: &App) -> bool {
true
}
/// Returns a threshold value (n rows), of course, when scrolling to the bottom,
/// the remaining number of rows triggers `load_more`.
/// This should smaller than the total number of first load rows.
///
/// Default: 20 rows
fn load_more_threshold(&self) -> usize {
20
}
/// Load more data when the table is scrolled to the bottom.
///
/// This will performed in a background task.
///
/// This is always called when the table is near the bottom,
/// so you must check if there is more data to load or lock the loading state.
fn load_more(&mut self, window: &mut Window, cx: &mut Context<Table<Self>>) {}
/// Render the last empty column, default to empty.
fn render_last_empty_col(
&mut self,
window: &mut Window,
cx: &mut Context<Table<Self>>,
) -> impl IntoElement {
h_flex().w_3().h_full().flex_shrink_0()
}
/// Called when the visible range of the rows changed.
///
/// NOTE: Make sure this method is fast, because it will be called frequently.
///
/// This can used to handle some data update, to only update the visible rows.
/// Please ensure that the data is updated in the background task.
fn visible_rows_changed(
&mut self,
visible_range: Range<usize>,
window: &mut Window,
cx: &mut Context<Table<Self>>,
) {
}
/// Called when the visible range of the columns changed.
///
/// NOTE: Make sure this method is fast, because it will be called frequently.
///
/// This can used to handle some data update, to only update the visible rows.
/// Please ensure that the data is updated in the background task.
fn visible_columns_changed(
&mut self,
visible_range: Range<usize>,
window: &mut Window,
cx: &mut Context<Table<Self>>,
) {
}
}