1126 lines
39 KiB
Rust
1126 lines
39 KiB
Rust
use std::{cell::Cell, ops::Range, rc::Rc};
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use crate::{
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h_flex,
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scroll::{ScrollableAxis, ScrollableMask, Scrollbar, ScrollbarState},
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theme::ActiveTheme,
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v_flex, Icon, IconName, Sizable, Size,
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};
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use gpui::{
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actions, canvas, div, prelude::FluentBuilder, px, uniform_list, AppContext, Bounds, Div,
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DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle, FocusableView, InteractiveElement,
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IntoElement, KeyBinding, MouseButton, ParentElement, Pixels, Point, Render, ScrollHandle,
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SharedString, StatefulInteractiveElement as _, Styled, UniformListScrollHandle, ViewContext,
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VisualContext as _, WindowContext,
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};
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actions!(
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table,
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[
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Cancel,
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SelectPrev,
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SelectNext,
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SelectPrevColumn,
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SelectNextColumn
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]
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);
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pub fn init(cx: &mut AppContext) {
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let context = Some("Table");
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cx.bind_keys([
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KeyBinding::new("escape", Cancel, context),
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KeyBinding::new("up", SelectPrev, context),
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KeyBinding::new("down", SelectNext, context),
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KeyBinding::new("left", SelectPrevColumn, context),
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KeyBinding::new("right", SelectNextColumn, context),
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]);
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}
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum ColFixed {
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Left,
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}
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#[derive(Debug, Clone, Copy)]
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struct ColGroup {
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width: Option<Pixels>,
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bounds: Bounds<Pixels>,
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sort: Option<ColSort>,
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fixed: Option<ColFixed>,
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}
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#[derive(Clone)]
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pub(crate) struct DragCol {
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pub(crate) entity_id: EntityId,
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pub(crate) name: SharedString,
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pub(crate) width: Option<Pixels>,
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pub(crate) col_ix: usize,
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}
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#[derive(Copy, Clone, Debug, PartialEq, Eq)]
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pub enum ColSort {
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/// No sorting.
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Default,
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/// Sort in ascending order.
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Ascending,
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/// Sort in descending order.
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Descending,
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}
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impl Render for DragCol {
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fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
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div()
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.px_4()
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.py_1()
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.bg(cx.theme().table_head)
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.border_1()
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.border_color(cx.theme().border)
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.shadow_md()
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.when_some(self.width, |this, width| this.w(width))
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.min_w(px(100.))
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.max_w(px(450.))
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.child(self.name.clone())
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}
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}
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#[derive(Clone, Render)]
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pub struct ResizeCol(pub (EntityId, usize));
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#[derive(Copy, Clone, Debug, PartialEq, Eq)]
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enum SelectionState {
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Column,
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Row,
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}
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#[derive(Clone)]
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pub enum TableEvent {
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SelectRow(usize),
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SelectCol(usize),
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ColWidthsChanged(Vec<Option<Pixels>>),
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}
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pub struct Table<D: TableDelegate> {
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focus_handle: FocusHandle,
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delegate: D,
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/// The bounds of the table container.
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bounds: Bounds<Pixels>,
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/// The bounds of the table content.
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head_content_bounds: Bounds<Pixels>,
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col_groups: Vec<ColGroup>,
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vertical_scroll_handle: UniformListScrollHandle,
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scrollbar_state: Rc<Cell<ScrollbarState>>,
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horizontal_scroll_handle: ScrollHandle,
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horizontal_scrollbar_state: Rc<Cell<ScrollbarState>>,
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selection_state: SelectionState,
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selected_row: Option<usize>,
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selected_col: Option<usize>,
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/// The column index that is being resized.
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resizing_col: Option<usize>,
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/// Set stripe style of the table.
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stripe: bool,
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/// Set to use border style of the table.
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border: bool,
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/// The cell size of the table.
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size: Size,
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}
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#[allow(unused)]
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pub trait TableDelegate: Sized + 'static {
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/// Return the number of columns in the table.
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fn cols_count(&self) -> usize;
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/// Return the number of rows in the table.
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fn rows_count(&self) -> usize;
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/// Returns the name of the column at the given index.
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fn col_name(&self, col_ix: usize) -> SharedString;
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/// Returns whether the column at the given index can be resized. Default: true
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fn can_resize_col(&self, col_ix: usize) -> bool {
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true
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}
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/// Returns whether the column at the given index can be selected. Default: false
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fn can_select_col(&self, col_ix: usize) -> bool {
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false
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}
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/// Returns the width of the column at the given index.
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/// Return None, use auto width.
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///
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/// This is only called when the table initializes.
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fn col_width(&self, col_ix: usize) -> Option<Pixels>;
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/// Return the sort state of the column at the given index.
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///
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/// This is only called when the table initializes.
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fn col_sort(&self, col_ix: usize) -> Option<ColSort> {
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None
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}
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/// Return the fixed side of the column at the given index.
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fn col_fixed(&self, col_ix: usize) -> Option<ColFixed> {
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None
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}
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/// Perform sort on the column at the given index.
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fn perform_sort(&mut self, col_ix: usize, sort: ColSort, cx: &mut ViewContext<Table<Self>>) {}
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/// Render the header cell at the given column index, default to the column name.
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fn render_th(&self, col_ix: usize, cx: &mut ViewContext<Table<Self>>) -> impl IntoElement {
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div().size_full().child(self.col_name(col_ix))
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}
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/// Render the row at the given row and column.
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fn render_tr(&self, row_ix: usize, cx: &mut ViewContext<Table<Self>>) -> Div {
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h_flex()
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}
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/// Render cell at the given row and column.
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fn render_td(
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&self,
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row_ix: usize,
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col_ix: usize,
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cx: &mut ViewContext<Table<Self>>,
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) -> impl IntoElement;
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/// Return true to enable loop selection on the table.
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///
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/// When the prev/next selection is out of the table bounds, the selection will loop to the other side.
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///
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/// Default: true
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fn can_loop_select(&self) -> bool {
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true
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}
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/// Return true to enable column order change.
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fn can_move_col(&self, col_ix: usize) -> bool {
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false
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}
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/// Move the column at the given `col_ix` to insert before the column at the given `to_ix`.
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fn move_col(&mut self, col_ix: usize, to_ix: usize) {}
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/// Return a Element to show when table is empty.
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fn render_empty(&self, cx: &mut ViewContext<Table<Self>>) -> impl IntoElement {
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h_flex()
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.size_full()
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.justify_center()
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.py_6()
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.text_color(cx.theme().muted_foreground.opacity(0.6))
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.child(Icon::new(IconName::Inbox).size_12())
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.into_any_element()
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}
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/// Return true to enable load more data when scrolling to the bottom.
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///
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/// Default: true
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fn can_load_more(&self) -> bool {
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true
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}
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/// Returns a threshold value (n rows), of course, when scrolling to the bottom,
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/// the remaining number of rows triggers `load_more`.
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///
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/// Default: 50 rows
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fn load_more_threshold(&self) -> usize {
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50
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}
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/// Load more data when the table is scrolled to the bottom.
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///
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/// This will performed in a background task.
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///
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/// This is always called when the table is near the bottom,
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/// so you must check if there is more data to load or lock the loading state.
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fn load_more(&mut self, cx: &mut ViewContext<Table<Self>>) {}
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}
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impl<D> Table<D>
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where
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D: TableDelegate,
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{
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pub fn new(delegate: D, cx: &mut ViewContext<Self>) -> Self {
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let mut this = Self {
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focus_handle: cx.focus_handle(),
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delegate,
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col_groups: Vec::new(),
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horizontal_scroll_handle: ScrollHandle::new(),
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vertical_scroll_handle: UniformListScrollHandle::new(),
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scrollbar_state: Rc::new(Cell::new(ScrollbarState::new())),
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horizontal_scrollbar_state: Rc::new(Cell::new(ScrollbarState::new())),
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selection_state: SelectionState::Row,
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selected_row: None,
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selected_col: None,
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resizing_col: None,
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bounds: Bounds::default(),
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head_content_bounds: Bounds::default(),
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stripe: false,
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border: true,
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size: Size::default(),
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};
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this.prepare_col_groups(cx);
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this
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}
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pub fn delegate(&self) -> &D {
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&self.delegate
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}
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pub fn delegate_mut(&mut self) -> &mut D {
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&mut self.delegate
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}
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/// Set to use stripe style of the table, default to false.
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pub fn stripe(mut self, stripe: bool) -> Self {
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self.stripe = stripe;
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self
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}
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pub fn set_stripe(&mut self, stripe: bool, cx: &mut ViewContext<Self>) {
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self.stripe = stripe;
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cx.notify();
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}
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/// Set to use border style of the table, default to true.
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pub fn border(mut self, border: bool) -> Self {
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self.border = border;
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self
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}
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/// Set the size to the table.
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pub fn set_size(&mut self, size: Size, cx: &mut ViewContext<Self>) {
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self.size = size;
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cx.notify();
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}
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/// When we update columns or rows, we need to refresh the table.
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pub fn refresh(&mut self, cx: &mut ViewContext<Self>) {
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self.prepare_col_groups(cx);
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}
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fn prepare_col_groups(&mut self, cx: &mut ViewContext<Self>) {
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self.col_groups = (0..self.delegate.cols_count())
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.map(|col_ix| ColGroup {
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width: self.delegate.col_width(col_ix),
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bounds: Bounds::default(),
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sort: self.delegate.col_sort(col_ix),
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fixed: self.delegate.col_fixed(col_ix),
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})
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.collect();
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cx.notify();
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}
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fn scroll_to_row(&mut self, row_ix: usize, cx: &mut ViewContext<Self>) {
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self.vertical_scroll_handle.scroll_to_item(row_ix);
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cx.notify();
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}
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fn set_selected_row(&mut self, row_ix: usize, cx: &mut ViewContext<Self>) {
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self.selection_state = SelectionState::Row;
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self.selected_row = Some(row_ix);
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if let Some(row_ix) = self.selected_row {
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self.vertical_scroll_handle.scroll_to_item(row_ix);
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}
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cx.emit(TableEvent::SelectRow(row_ix));
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cx.notify();
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}
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fn set_selected_col(&mut self, col_ix: usize, cx: &mut ViewContext<Self>) {
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self.selection_state = SelectionState::Column;
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self.selected_col = Some(col_ix);
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if let Some(_col_ix) = self.selected_col {
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// TODO: Fix scroll to selected col, this was not working after fixed col.
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// if self.col_groups[col_ix].fixed.is_none() {
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// self.horizontal_scroll_handle.scroll_to_item(col_ix);
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// }
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}
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cx.emit(TableEvent::SelectCol(col_ix));
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cx.notify();
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}
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fn on_row_click(&mut self, row_ix: usize, cx: &mut ViewContext<Self>) {
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self.set_selected_row(row_ix, cx)
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}
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fn on_col_head_click(&mut self, col_ix: usize, cx: &mut ViewContext<Self>) {
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if !self.delegate.can_select_col(col_ix) {
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return;
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}
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self.set_selected_col(col_ix, cx)
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}
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fn action_cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
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self.selection_state = SelectionState::Row;
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self.selected_row = None;
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self.selected_col = None;
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cx.notify();
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}
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fn action_select_prev(&mut self, _: &SelectPrev, cx: &mut ViewContext<Self>) {
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let mut selected_row = self.selected_row.unwrap_or(0);
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let rows_count = self.delegate.rows_count();
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if selected_row > 0 {
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selected_row = selected_row - 1;
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} else {
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if self.delegate.can_loop_select() {
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selected_row = rows_count - 1;
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}
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}
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self.set_selected_row(selected_row, cx);
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}
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fn action_select_next(&mut self, _: &SelectNext, cx: &mut ViewContext<Self>) {
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let mut selected_row = self.selected_row.unwrap_or(0);
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if selected_row < self.delegate.rows_count() - 1 {
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selected_row += 1;
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} else {
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if self.delegate.can_loop_select() {
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selected_row = 0;
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}
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}
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self.set_selected_row(selected_row, cx);
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}
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fn action_select_prev_col(&mut self, _: &SelectPrevColumn, cx: &mut ViewContext<Self>) {
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let mut selected_col = self.selected_col.unwrap_or(0);
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let cols_count = self.delegate.cols_count();
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if selected_col > 0 {
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selected_col -= 1;
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} else {
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if self.delegate.can_loop_select() {
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selected_col = cols_count - 1;
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}
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}
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self.set_selected_col(selected_col, cx);
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}
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fn action_select_next_col(&mut self, _: &SelectNextColumn, cx: &mut ViewContext<Self>) {
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let mut selected_col = self.selected_col.unwrap_or(0);
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if selected_col < self.delegate.cols_count() - 1 {
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selected_col += 1;
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} else {
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if self.delegate.can_loop_select() {
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selected_col = 0;
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}
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}
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self.set_selected_col(selected_col, cx);
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}
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fn render_cell(&self, col_ix: usize, _cx: &mut ViewContext<Self>) -> Div {
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let col_width = self.col_groups[col_ix].width;
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div()
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.when_some(col_width, |this, width| this.w(width))
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.flex_shrink_0()
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.overflow_hidden()
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.whitespace_nowrap()
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.map(|this| match self.size {
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Size::XSmall => this.text_sm().py_0p5().px_1(),
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Size::Small => this.text_sm().py(px(3.)).px_1p5(),
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Size::Large => this.py_2().px_3(),
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_ => this.py_1().px_2(),
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})
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}
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|
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/// Show Column selection style, when the column is selected and the selection state is Column.
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fn col_wrap(&self, col_ix: usize, cx: &mut ViewContext<Self>) -> Div {
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if self.delegate().can_select_col(col_ix)
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&& self.selected_col == Some(col_ix)
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&& self.selection_state == SelectionState::Column
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{
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h_flex().bg(cx.theme().table_active)
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} else {
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h_flex()
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}
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}
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fn render_scrollbar(&self, cx: &mut ViewContext<Self>) -> Option<impl IntoElement> {
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let state = self.scrollbar_state.clone();
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Some(
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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::uniform_scroll(
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cx.view().entity_id(),
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state,
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self.vertical_scroll_handle.clone(),
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self.delegate.rows_count(),
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)),
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)
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}
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|
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fn render_horizontal_scrollbar(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
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let state = self.horizontal_scrollbar_state.clone();
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|
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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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.size_full()
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.child(Scrollbar::horizontal(
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cx.view().entity_id(),
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state,
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self.horizontal_scroll_handle.clone(),
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self.head_content_bounds.size,
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))
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}
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fn render_resize_handle(&self, ix: usize, cx: &mut ViewContext<Self>) -> impl IntoElement {
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const HANDLE_SIZE: Pixels = px(2.);
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|
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if !self.delegate.can_resize_col(ix) {
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return div().into_any_element();
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}
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let group_id = SharedString::from(format!("resizable-handle:{}", ix));
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h_flex()
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.id(("resizable-handle", ix))
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.group(group_id.clone())
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.occlude()
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.cursor_col_resize()
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.h_full()
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.w(HANDLE_SIZE)
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.ml(-(HANDLE_SIZE))
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.justify_end()
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.items_center()
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.child(
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div()
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.h_full()
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|
.justify_center()
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.bg(cx.theme().table_row_border)
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.group_hover(group_id, |this| this.bg(cx.theme().border).h_full())
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.w(px(1.)),
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)
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.on_drag_move(cx.listener(move |view, e: &DragMoveEvent<ResizeCol>, cx| {
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|
match e.drag(cx) {
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|
ResizeCol((entity_id, ix)) => {
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if cx.entity_id() != *entity_id {
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return;
|
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}
|
|
|
|
// sync col widths into real widths
|
|
for (_, col_group) in view.col_groups.iter_mut().enumerate() {
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col_group.width = Some(col_group.bounds.size.width);
|
|
}
|
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|
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let ix = *ix;
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view.resizing_col = Some(ix);
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|
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let col_group = *view.col_groups.get(ix).expect("BUG: invalid col index");
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|
|
|
view.resize_cols(
|
|
ix,
|
|
e.event.position.x - HANDLE_SIZE - col_group.bounds.left(),
|
|
cx,
|
|
);
|
|
|
|
// scroll the table if the drag is near the edge
|
|
view.scroll_table_by_col_resizing(e.event.position, col_group, cx);
|
|
}
|
|
};
|
|
}))
|
|
.on_drag(ResizeCol((cx.entity_id(), ix)), |drag, cx| {
|
|
cx.stop_propagation();
|
|
cx.new_view(|_| drag.clone())
|
|
})
|
|
.on_mouse_up_out(
|
|
MouseButton::Left,
|
|
cx.listener(|view, _, cx| {
|
|
if view.resizing_col.is_none() {
|
|
return;
|
|
}
|
|
|
|
view.resizing_col = None;
|
|
|
|
let new_widths = view.col_groups.iter().map(|g| g.width).collect();
|
|
cx.emit(TableEvent::ColWidthsChanged(new_widths));
|
|
cx.notify();
|
|
}),
|
|
)
|
|
.into_any_element()
|
|
}
|
|
|
|
/// Scroll table when mouse position is near the edge of the table bounds.
|
|
fn scroll_table_by_col_resizing(
|
|
&mut self,
|
|
pos: Point<Pixels>,
|
|
col_group: ColGroup,
|
|
_: &mut ViewContext<Self>,
|
|
) {
|
|
let mut offset = self.horizontal_scroll_handle.offset();
|
|
let col_bounds = col_group.bounds;
|
|
|
|
if pos.x < self.bounds.left() && col_bounds.right() < self.bounds.left() + px(20.) {
|
|
offset.x += px(1.);
|
|
} else if pos.x > self.bounds.right() && col_bounds.right() > self.bounds.right() - px(20.)
|
|
{
|
|
offset.x -= px(1.);
|
|
}
|
|
|
|
self.horizontal_scroll_handle.set_offset(offset);
|
|
}
|
|
|
|
/// The `ix`` is the index of the col to resize,
|
|
/// and the `size` is the new size for the col.
|
|
fn resize_cols(&mut self, ix: usize, size: Pixels, cx: &mut ViewContext<Self>) {
|
|
const MIN_WIDTH: Pixels = px(10.0);
|
|
const MAX_WIDTH: Pixels = px(1200.0);
|
|
|
|
if !self.delegate.can_resize_col(ix) {
|
|
return;
|
|
}
|
|
let size = size.floor();
|
|
|
|
let old_width = self.col_groups[ix].width.unwrap_or_default();
|
|
let new_width = size;
|
|
if new_width < MIN_WIDTH {
|
|
return;
|
|
}
|
|
let changed_width = new_width - old_width;
|
|
// If change size is less than 1px, do nothing.
|
|
if changed_width > px(-1.0) && changed_width < px(1.0) {
|
|
return;
|
|
}
|
|
self.col_groups[ix].width = Some(new_width.min(MAX_WIDTH));
|
|
|
|
// Resize next col, table not need to resize the right cols.
|
|
// let next_width = self.col_groups[ix + 1].width.unwrap_or_default();
|
|
// let next_width = (next_width - changed_width).max(MIN_WIDTH);
|
|
// self.col_groups[ix + 1].width = Some(next_width);
|
|
|
|
cx.notify();
|
|
}
|
|
|
|
fn perform_sort(&mut self, col_ix: usize, cx: &mut ViewContext<Self>) {
|
|
let sort = self.col_groups.get(col_ix).and_then(|g| g.sort);
|
|
if sort.is_none() {
|
|
return;
|
|
}
|
|
|
|
let sort = sort.unwrap();
|
|
let sort = match sort {
|
|
ColSort::Ascending => ColSort::Descending,
|
|
ColSort::Descending => ColSort::Ascending,
|
|
ColSort::Default => ColSort::Descending,
|
|
};
|
|
|
|
for (ix, col_group) in self.col_groups.iter_mut().enumerate() {
|
|
if ix == col_ix {
|
|
col_group.sort = Some(sort);
|
|
} else {
|
|
col_group.sort = Some(ColSort::Default);
|
|
}
|
|
}
|
|
|
|
self.delegate_mut().perform_sort(col_ix, sort, cx);
|
|
|
|
cx.notify();
|
|
}
|
|
|
|
fn move_col(&mut self, col_ix: usize, to_ix: usize, cx: &mut ViewContext<Self>) {
|
|
if col_ix == to_ix {
|
|
return;
|
|
}
|
|
|
|
self.delegate.move_col(col_ix, to_ix);
|
|
let col_group = self.col_groups.remove(col_ix);
|
|
self.col_groups.insert(to_ix, col_group);
|
|
|
|
cx.notify();
|
|
}
|
|
|
|
fn render_sort_icon(
|
|
&self,
|
|
col_ix: usize,
|
|
cx: &mut ViewContext<Self>,
|
|
) -> Option<impl IntoElement> {
|
|
let sort = self.col_groups.get(col_ix).and_then(|g| g.sort);
|
|
if sort.is_none() {
|
|
return None;
|
|
}
|
|
|
|
let sort = sort.unwrap();
|
|
|
|
let (icon, is_on) = match sort {
|
|
ColSort::Ascending => (IconName::SortAscending, true),
|
|
ColSort::Descending => (IconName::SortDescending, true),
|
|
ColSort::Default => (IconName::ChevronsUpDown, false),
|
|
};
|
|
|
|
Some(
|
|
div()
|
|
.id(("icon-sort", col_ix))
|
|
.cursor_pointer()
|
|
.ml_2()
|
|
.p(px(2.))
|
|
.rounded_sm()
|
|
.map(|this| match is_on {
|
|
true => this,
|
|
false => this.opacity(0.5),
|
|
})
|
|
.hover(|this| this.bg(cx.theme().secondary).opacity(7.))
|
|
.active(|this| this.bg(cx.theme().secondary_active).opacity(1.))
|
|
.on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
|
|
.on_click(cx.listener(move |table, _, cx| table.perform_sort(col_ix, cx)))
|
|
.child(
|
|
Icon::new(icon)
|
|
.size_3()
|
|
.text_color(cx.theme().secondary_foreground),
|
|
),
|
|
)
|
|
}
|
|
|
|
/// Render the column header.
|
|
/// The children must be one by one items.
|
|
/// Because the horizontal scroll handle will use the child_item_bounds to
|
|
/// calculate the item position for itself's `scroll_to_item` method.
|
|
fn render_th(&self, col_ix: usize, cx: &mut ViewContext<Self>) -> impl IntoElement {
|
|
let entity_id = cx.entity_id();
|
|
let col_group = self.col_groups.get(col_ix).expect("BUG: invalid col index");
|
|
|
|
let name = self.delegate.col_name(col_ix);
|
|
h_flex()
|
|
.child(
|
|
self.render_cell(col_ix, cx)
|
|
.id(("col-header", col_ix))
|
|
.on_mouse_down(
|
|
MouseButton::Left,
|
|
cx.listener(move |this, _, cx| {
|
|
cx.stop_propagation();
|
|
this.on_col_head_click(col_ix, cx);
|
|
}),
|
|
)
|
|
.child(
|
|
h_flex()
|
|
.size_full()
|
|
.justify_between()
|
|
.items_center()
|
|
.child(self.delegate.render_th(col_ix, cx))
|
|
.children(self.render_sort_icon(col_ix, cx)),
|
|
)
|
|
.when(self.delegate.can_move_col(col_ix), |this| {
|
|
this.on_drag(
|
|
DragCol {
|
|
entity_id,
|
|
col_ix,
|
|
name,
|
|
width: col_group.width,
|
|
},
|
|
|drag, cx| {
|
|
cx.stop_propagation();
|
|
cx.new_view(|_| drag.clone())
|
|
},
|
|
)
|
|
.drag_over::<DragCol>(|this, _, cx| {
|
|
this.rounded_l_none()
|
|
.border_l_2()
|
|
.border_r_0()
|
|
.border_color(cx.theme().drag_border)
|
|
})
|
|
.on_drop(cx.listener(
|
|
move |table, drag: &DragCol, cx| {
|
|
// If the drag col is not the same as the drop col, then swap the cols.
|
|
if drag.entity_id != cx.entity_id() {
|
|
return;
|
|
}
|
|
|
|
table.move_col(drag.col_ix, col_ix, cx);
|
|
},
|
|
))
|
|
}),
|
|
)
|
|
// resize handle
|
|
.child(self.render_resize_handle(col_ix, cx))
|
|
// to save the bounds of this col.
|
|
.child({
|
|
let view = cx.view().clone();
|
|
canvas(
|
|
move |bounds, cx| view.update(cx, |r, _| r.col_groups[col_ix].bounds = bounds),
|
|
|_, _, _| {},
|
|
)
|
|
.absolute()
|
|
.size_full()
|
|
})
|
|
}
|
|
|
|
/// Dispatch delegate's `load_more` method when the visible range is near the end.
|
|
fn load_more(&mut self, visible_range: Range<usize>, cx: &mut ViewContext<Self>) {
|
|
if !self.delegate.can_load_more() {
|
|
return;
|
|
}
|
|
|
|
let row_count = self.delegate.rows_count();
|
|
let load_more_count = self.delegate.load_more_threshold();
|
|
|
|
// Securely handle subtract logic to prevent attempt to subtract with overflow
|
|
if row_count >= load_more_count {
|
|
if visible_range.end >= row_count - load_more_count {
|
|
cx.spawn(|view, mut cx| async move {
|
|
cx.update(|cx| {
|
|
view.update(cx, |view, cx| {
|
|
view.delegate.load_more(cx);
|
|
})
|
|
})
|
|
})
|
|
.detach()
|
|
}
|
|
}
|
|
}
|
|
|
|
fn render_table_head(
|
|
&mut self,
|
|
left_cols_count: usize,
|
|
cx: &mut ViewContext<Self>,
|
|
) -> impl IntoElement {
|
|
let view = cx.view().clone();
|
|
let horizontal_scroll_handle = self.horizontal_scroll_handle.clone();
|
|
let fixed_cols_count = self
|
|
.col_groups
|
|
.iter()
|
|
.filter(|col| col.fixed.is_some())
|
|
.count();
|
|
|
|
h_flex()
|
|
.w_full()
|
|
.map(|this| match self.size {
|
|
Size::Large => this.h_10(),
|
|
Size::Small => this.h(px(30.)),
|
|
Size::XSmall => this.h(px(26.)),
|
|
_ => this.h_8(),
|
|
})
|
|
.flex_shrink_0()
|
|
.border_b_1()
|
|
.border_color(cx.theme().border)
|
|
.text_color(cx.theme().table_head_foreground)
|
|
.when(fixed_cols_count > 0, |this| {
|
|
// Render left fixed columns
|
|
this.child(
|
|
h_flex()
|
|
.id("table-head-fixed-left")
|
|
.h_full()
|
|
.bg(cx.theme().table_head)
|
|
.border_r_1()
|
|
.border_color(cx.theme().border)
|
|
.children(
|
|
self.col_groups
|
|
.iter()
|
|
.filter(|col| col.fixed == Some(ColFixed::Left))
|
|
.enumerate()
|
|
.map(|(col_ix, _)| self.render_th(col_ix, cx)),
|
|
),
|
|
)
|
|
})
|
|
.child(
|
|
// Render other normal columns
|
|
uniform_list(view.clone(), "table-head-uniform-list", 1, {
|
|
let horizontal_scroll_handle = horizontal_scroll_handle.clone();
|
|
let view = view.clone();
|
|
move |table, _, cx| {
|
|
let view = view.clone();
|
|
|
|
// Columns
|
|
h_flex()
|
|
.id("table-head")
|
|
.h_full()
|
|
.w_full()
|
|
.overflow_scroll()
|
|
.relative()
|
|
.track_scroll(&horizontal_scroll_handle)
|
|
.bg(cx.theme().table_head)
|
|
.child(
|
|
h_flex()
|
|
.relative()
|
|
.children(
|
|
table
|
|
.col_groups
|
|
.iter()
|
|
.filter(|col| col.fixed == None)
|
|
.enumerate()
|
|
.map(|(col_ix, _)| {
|
|
table.render_th(left_cols_count + col_ix, cx)
|
|
}),
|
|
)
|
|
.child(Self::last_empty_col(cx))
|
|
.child(
|
|
canvas(
|
|
move |bounds, cx| {
|
|
view.update(cx, |r, _| {
|
|
r.head_content_bounds = bounds
|
|
})
|
|
},
|
|
|_, _, _| {},
|
|
)
|
|
.absolute()
|
|
.size_full(),
|
|
),
|
|
)
|
|
.map(|this| vec![this])
|
|
}
|
|
})
|
|
.map(|this| match self.size {
|
|
Size::Large => this.h_10(),
|
|
Size::Small => this.h(px(30.)),
|
|
Size::XSmall => this.h(px(26.)),
|
|
_ => this.h_8(),
|
|
})
|
|
.h_full()
|
|
.flex_1(),
|
|
)
|
|
}
|
|
|
|
fn render_table_row(
|
|
&mut self,
|
|
row_ix: usize,
|
|
rows_count: usize,
|
|
left_cols_count: usize,
|
|
cols_count: usize,
|
|
cx: &mut ViewContext<Self>,
|
|
) -> impl IntoElement {
|
|
let horizontal_scroll_handle = self.horizontal_scroll_handle.clone();
|
|
let is_stripe_row = self.stripe && row_ix % 2 != 0;
|
|
let is_selected = self.selected_row == Some(row_ix);
|
|
|
|
if row_ix < rows_count {
|
|
self.delegate
|
|
.render_tr(row_ix, cx)
|
|
.id(("table-row", row_ix))
|
|
.w_full()
|
|
.when(row_ix > 0, |this| {
|
|
this.border_t_1().border_color(cx.theme().table_row_border)
|
|
})
|
|
.when(is_stripe_row, |this| this.bg(cx.theme().table_even))
|
|
.hover(|this| {
|
|
if is_selected {
|
|
this
|
|
} else {
|
|
this.bg(cx.theme().table_hover)
|
|
}
|
|
})
|
|
.children(if left_cols_count > 0 {
|
|
// Left fixed columns
|
|
Some(
|
|
h_flex()
|
|
.border_r_1()
|
|
.border_color(cx.theme().table_row_border)
|
|
.children((0..left_cols_count).map(|col_ix| {
|
|
self.col_wrap(col_ix, cx).child(
|
|
self.render_cell(col_ix, cx)
|
|
.child(self.delegate.render_td(row_ix, col_ix, cx)),
|
|
)
|
|
})),
|
|
)
|
|
} else {
|
|
None
|
|
})
|
|
.child(
|
|
h_flex()
|
|
.flex_1()
|
|
.overflow_hidden()
|
|
.children((left_cols_count..cols_count).map(|col_ix| {
|
|
self
|
|
// Make the row scroll sync with the
|
|
// horizontal_scroll_handle to support horizontal scrolling.
|
|
.col_wrap(col_ix, cx)
|
|
.left(horizontal_scroll_handle.offset().x)
|
|
.child(
|
|
self.render_cell(col_ix, cx)
|
|
.child(self.delegate.render_td(row_ix, col_ix, cx)),
|
|
)
|
|
}))
|
|
.child(Self::last_empty_col(cx)),
|
|
)
|
|
// Row selected style
|
|
.when_some(self.selected_row, |this, _| {
|
|
this.when(
|
|
is_selected && self.selection_state == SelectionState::Row,
|
|
|this| this.bg(cx.theme().table_active),
|
|
)
|
|
})
|
|
.on_mouse_down(
|
|
MouseButton::Left,
|
|
cx.listener(move |this, _, cx| {
|
|
this.on_row_click(row_ix, cx);
|
|
}),
|
|
)
|
|
} else {
|
|
// Render fake rows to fill the rest table space
|
|
self.delegate
|
|
.render_tr(row_ix, cx)
|
|
.id(("table-row-fake", row_ix))
|
|
.w_full()
|
|
.h_full()
|
|
.border_t_1()
|
|
.border_color(cx.theme().table_row_border)
|
|
.when(is_stripe_row, |this| this.bg(cx.theme().table_even))
|
|
.children((0..cols_count).map(|col_ix| {
|
|
h_flex()
|
|
.left(horizontal_scroll_handle.offset().x)
|
|
.child(self.render_cell(col_ix, cx))
|
|
}))
|
|
.child(Self::last_empty_col(cx))
|
|
}
|
|
}
|
|
|
|
fn last_empty_col(_: &mut WindowContext) -> Div {
|
|
h_flex().w(px(100.)).h_full().flex_shrink_0()
|
|
}
|
|
}
|
|
|
|
impl<D> Sizable for Table<D>
|
|
where
|
|
D: TableDelegate,
|
|
{
|
|
fn with_size(mut self, size: impl Into<Size>) -> Self {
|
|
self.size = size.into();
|
|
self
|
|
}
|
|
}
|
|
impl<D> FocusableView for Table<D>
|
|
where
|
|
D: TableDelegate,
|
|
{
|
|
fn focus_handle(&self, _cx: &gpui::AppContext) -> FocusHandle {
|
|
self.focus_handle.clone()
|
|
}
|
|
}
|
|
|
|
impl<D> EventEmitter<TableEvent> for Table<D> where D: TableDelegate {}
|
|
|
|
impl<D> Render for Table<D>
|
|
where
|
|
D: TableDelegate,
|
|
{
|
|
fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
|
|
let view = cx.view().clone();
|
|
let vertical_scroll_handle = self.vertical_scroll_handle.clone();
|
|
let horizontal_scroll_handle = self.horizontal_scroll_handle.clone();
|
|
let cols_count: usize = self.delegate.cols_count();
|
|
let rows_count = self.delegate.rows_count();
|
|
|
|
let row_height = self.vertical_scroll_handle.0.borrow().last_item_height;
|
|
let total_height = self
|
|
.vertical_scroll_handle
|
|
.0
|
|
.borrow()
|
|
.base_handle
|
|
.bounds()
|
|
.size
|
|
.height;
|
|
|
|
// Calculate the extra rows needed to fill the table for stripe style.
|
|
let mut extra_rows_needed = 0;
|
|
if let Some(row_height) = row_height {
|
|
if row_height > px(0.) {
|
|
let actual_height = row_height * rows_count as f32;
|
|
let remaining_height = total_height - actual_height;
|
|
if remaining_height > px(0.) {
|
|
extra_rows_needed = (remaining_height / row_height).ceil() as usize;
|
|
}
|
|
}
|
|
}
|
|
|
|
let left_cols_count = self
|
|
.col_groups
|
|
.iter()
|
|
.filter(|col| col.fixed == Some(ColFixed::Left))
|
|
.count();
|
|
|
|
let inner_table = v_flex()
|
|
.key_context("Table")
|
|
.id("table")
|
|
.track_focus(&self.focus_handle)
|
|
.on_action(cx.listener(Self::action_cancel))
|
|
.on_action(cx.listener(Self::action_select_next))
|
|
.on_action(cx.listener(Self::action_select_prev))
|
|
.on_action(cx.listener(Self::action_select_next_col))
|
|
.on_action(cx.listener(Self::action_select_prev_col))
|
|
.size_full()
|
|
.overflow_hidden()
|
|
.child(self.render_table_head(left_cols_count, cx))
|
|
.map(|this| {
|
|
if rows_count == 0 {
|
|
this.child(div().size_full().child(self.delegate.render_empty(cx)))
|
|
} else {
|
|
this.child(
|
|
h_flex().id("table-body").flex_grow().size_full().child(
|
|
uniform_list(
|
|
view,
|
|
"table-uniform-list",
|
|
rows_count + extra_rows_needed,
|
|
{
|
|
move |table, visible_range, cx| {
|
|
table.load_more(visible_range.clone(), cx);
|
|
|
|
if visible_range.end > rows_count {
|
|
table.scroll_to_row(
|
|
std::cmp::min(visible_range.start, rows_count - 1),
|
|
cx,
|
|
);
|
|
}
|
|
|
|
// Render fake rows to fill the table
|
|
visible_range
|
|
.map(|row_ix| {
|
|
// Render real rows for available data
|
|
table.render_table_row(
|
|
row_ix,
|
|
rows_count,
|
|
left_cols_count,
|
|
cols_count,
|
|
cx,
|
|
)
|
|
})
|
|
.collect::<Vec<_>>()
|
|
}
|
|
},
|
|
)
|
|
.flex_grow()
|
|
.size_full()
|
|
.with_sizing_behavior(gpui::ListSizingBehavior::Auto)
|
|
.track_scroll(vertical_scroll_handle)
|
|
.into_any_element(),
|
|
),
|
|
)
|
|
}
|
|
});
|
|
|
|
let view = cx.view().clone();
|
|
div()
|
|
.size_full()
|
|
.when(self.border, |this| {
|
|
this.rounded_md().border_1().border_color(cx.theme().border)
|
|
})
|
|
.bg(cx.theme().table)
|
|
.child(inner_table)
|
|
.child(ScrollableMask::new(
|
|
cx.view().clone(),
|
|
ScrollableAxis::Horizontal,
|
|
&horizontal_scroll_handle,
|
|
))
|
|
.child(canvas(
|
|
move |bounds, cx| view.update(cx, |r, _| r.bounds = bounds),
|
|
|_, _, _| {},
|
|
))
|
|
.child(self.render_horizontal_scrollbar(cx))
|
|
.when(rows_count > 0, |this| {
|
|
this.children(self.render_scrollbar(cx))
|
|
})
|
|
}
|
|
}
|