gristlabs_grist-core/app/client/components/SelectionSummary.ts
George Gevoian 273b976cab (core) Polish dark mode and remove beta tag
Summary:
Polishes support for dark mode and enables syncing with the OS theme
by default.

Test Plan: Manual.

Reviewers: JakubSerafin

Reviewed By: JakubSerafin

Subscribers: JakubSerafin

Differential Revision: https://phab.getgrist.com/D4041
2023-09-21 13:14:48 -04:00

343 lines
13 KiB
TypeScript
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

import {CellSelector, COL, ROW} from 'app/client/components/CellSelector';
import {copyToClipboard} from 'app/client/lib/clipboardUtils';
import {Delay} from "app/client/lib/Delay";
import {KoArray} from 'app/client/lib/koArray';
import {ViewFieldRec} from 'app/client/models/entities/ViewFieldRec';
import {UserError} from 'app/client/models/errors';
import {ALL, RowsChanged, SortedRowSet} from "app/client/models/rowset";
import {showTransientTooltip} from 'app/client/ui/tooltips';
import {isNarrowScreen, isNarrowScreenObs, theme, vars} from 'app/client/ui2018/cssVars';
import {icon} from 'app/client/ui2018/icons';
import {CellValue} from 'app/common/DocActions';
import {isEmptyList, isListType, isRefListType} from "app/common/gristTypes";
import {TableData} from "app/common/TableData";
import {BaseFormatter} from 'app/common/ValueFormatter';
import ko from 'knockout';
import {Computed, Disposable, dom, makeTestId, Observable, styled, subscribe} from 'grainjs';
import {makeT} from 'app/client/lib/localization';
const t = makeT('SelectionSummary');
/**
* A beginning and end index for a range of columns or rows.
*/
interface Range {
begin: number;
end: number;
}
/**
* A single part of the cell selection summary.
*/
interface SummaryPart {
/** Identifier for the summary part. */
id: 'sum' | 'count' | 'dimensions';
/** Label that's shown to the left of `value`. */
label: string;
/** Value of the summary part. */
value: string;
/** If true, displays a copy button on hover. Defaults to false. */
clickToCopy?: boolean;
}
const testId = makeTestId('test-selection-summary-');
// We can handle a million cells in under 60ms on a good laptop. Much beyond that, and we'll break
// selection with the bad performance. Instead, skip the counting and summing for too many cells.
const MAX_CELLS_TO_SCAN = 1_000_000;
export class SelectionSummary extends Disposable {
private _colTotalCount = Computed.create(this, (use) =>
use(use(this._viewFields).getObservable()).length);
private _rowTotalCount = Computed.create(this, (use) => {
const rowIds = use(this._sortedRows.getKoArray().getObservable());
const includesNewRow = (rowIds.length > 0 && rowIds[rowIds.length - 1] === 'new');
return rowIds.length - (includesNewRow ? 1 : 0);
});
// In CellSelector, start and end are 0-based, inclusive, and not necessarily in order.
// It's not good for representing an empty range. Here, we convert ranges as [begin, end),
// with end >= begin.
private _rowRange = Computed.create<Range>(this, (use) => {
const type = use(this._cellSelector.currentSelectType);
if (type === COL) {
return {begin: 0, end: use(this._rowTotalCount)};
} else {
const start = use(this._cellSelector.row.start);
const end = use(this._cellSelector.row.end);
return {
begin: Math.min(start, end),
end: Math.max(start, end) + 1,
};
}
});
private _colRange = Computed.create<Range>(this, (use) => {
const type = use(this._cellSelector.currentSelectType);
if (type === ROW) {
return {begin: 0, end: use(this._colTotalCount)};
} else {
const start = use(this._cellSelector.col.start);
const end = use(this._cellSelector.col.end);
return {
begin: Math.min(start, end),
end: Math.max(start, end) + 1,
};
}
});
private _summary = Observable.create<SummaryPart[]>(this, []);
private _delayedRecalc = this.autoDispose(Delay.create());
constructor(
private _cellSelector: CellSelector,
private _tableData: TableData,
private _sortedRows: SortedRowSet,
private _viewFields: ko.Computed<KoArray<ViewFieldRec>>,
) {
super();
this.autoDispose(this._sortedRows.getKoArray().subscribe(this._onSpliceChange, this, 'spliceChange'));
const onRowNotify = this._onRowNotify.bind(this);
this._sortedRows.on('rowNotify', onRowNotify);
this.onDispose(() => this._sortedRows.off('rowNotify', onRowNotify));
this.autoDispose(subscribe(this._rowRange, this._colRange,
() => this._scheduleRecalc()));
this.autoDispose(isNarrowScreenObs().addListener((isNarrow) => {
if (isNarrow) { return; }
// No calculations occur while the screen is narrow, so we need to schedule one.
this._scheduleRecalc();
}));
}
public buildDom() {
return cssSummary(
dom.forEach(this._summary, ({id, label, value, clickToCopy}) =>
cssSummaryPart(
label ? dom('span', cssLabelText(label), cssCopyIcon('Copy')) : null,
value,
cssSummaryPart.cls('-copyable', Boolean(clickToCopy)),
(clickToCopy ? dom.on('click', (ev, elem) => doCopy(value, elem)) : null),
testId(id),
)
),
);
}
private _onSpliceChange(splice: {start: number}) {
const rowRange = this._rowRange.get();
const rowCount = rowRange.end - rowRange.begin;
if (rowCount === 1) { return; }
if (splice.start >= rowRange.end) { return; }
// We could be smart here and only recalculate when the splice affects our selection. But for
// that to make sense, the selection itself needs to be smart. Currently, the selection is
// lost whenever the cursor is affected. For example, when you have a selection and another
// user adds/removes columns or rows before the selection, the selection won't be shifted
// with the cursor, and will instead be cleared. Since we can't always rely on the selection
// being there, we'll err on the safe side and always schedule a recalc.
this._scheduleRecalc();
}
private _onRowNotify(rows: RowsChanged) {
const rowRange = this._rowRange.get();
if (rows === ALL) {
this._scheduleRecalc();
} else {
const rowArray = this._sortedRows.getKoArray().peek();
const rowIdSet = new Set(rows);
for (let r = rowRange.begin; r < rowRange.end; r++) {
if (rowIdSet.has(rowArray[r])) {
this._scheduleRecalc();
break;
}
}
}
}
/**
* Schedules a re-calculation to occur in the immediate future.
*
* May be called repeatedly, but only a single re-calculation will be scheduled, to
* avoid queueing unnecessary amounts of work.
*/
private _scheduleRecalc() {
// `_recalc` may take a non-trivial amount of time, so we defer until the stack is clear.
this._delayedRecalc.schedule(0, () => this._recalc());
}
private _recalc() {
const rowRange = this._rowRange.get();
const colRange = this._colRange.get();
let rowCount = rowRange.end - rowRange.begin;
let colCount = colRange.end - colRange.begin;
const cellCount = rowCount * colCount;
const summary: SummaryPart[] = [];
// Do nothing on narrow screens, because we haven't come up with a place to render sum anyway.
if (cellCount > 1 && !isNarrowScreen()) {
if (cellCount <= MAX_CELLS_TO_SCAN) {
const rowArray = this._sortedRows.getKoArray().peek();
const fields = this._viewFields.peek().peek();
let countNumeric = 0;
let countNonEmpty = 0;
let sum = 0;
let sumFormatter: BaseFormatter|null = null;
const rowIndices: number[] = [];
for (let r = rowRange.begin; r < rowRange.end; r++) {
const rowId = rowArray[r];
if (rowId === undefined || rowId === 'new') {
// We can run into this whenever the selection gets out of sync due to external
// changes, like another user removing some rows. For now, we'll skip rows that are
// still selected and no longer exist, but the real TODO is to better update the
// selection so that it doesn't have out-of-date and invalid ranges.
rowCount -= 1;
continue;
}
rowIndices.push(this._tableData.getRowIdIndex(rowId)!);
}
for (let c = colRange.begin; c < colRange.end; c++) {
const field = fields[c];
if (field === undefined) {
// Like with rows (see comment above), we need to watch out for out-of-date ranges.
colCount -= 1;
continue;
}
const col = fields[c].column.peek();
const displayCol = fields[c].displayColModel.peek();
const colType = col.type.peek();
const visibleColType = fields[c].visibleColModel.peek().type.peek();
const effectiveColType = visibleColType ?? colType;
const displayColId = displayCol.colId.peek();
// Note: we get values from the display column so that reference columns displaying
// numbers are included in the computed sum. Unfortunately, that also means we can't
// show a count of non-empty references. For now, that's a trade-off we'll have to make,
// but in the future it should be possible to allow showing multiple summary parts with
// some level of configurability.
const values = this._tableData.getColValues(displayColId);
if (!values) {
throw new UserError(`Invalid column ${this._tableData.tableId}.${displayColId}`);
}
const isNumeric = ['Numeric', 'Int', 'Any'].includes(effectiveColType);
const isEmpty: undefined | ((value: CellValue) => boolean) = (
colType.startsWith('Ref:') && !visibleColType ? value => (value === 0) :
isRefListType(colType) || isListType(effectiveColType) ? isEmptyList :
undefined
);
// The loops below are optimized, minimizing the amount of work done per row. For
// example, column values are retrieved in bulk above instead of once per row. In one
// unscientific test, they take 30-60ms per million numeric cells.
//
// TODO: Add a benchmark test suite that automates checking for performance regressions.
if (isNumeric) {
if (!sumFormatter) {
sumFormatter = fields[c].formatter.peek();
}
for (const i of rowIndices) {
const value = values[i];
if (typeof value === 'number') {
countNumeric++;
sum += value;
} else if (value !== null && value !== undefined && value !== '' && !isEmpty?.(value)) {
countNonEmpty++;
}
}
} else {
for (const i of rowIndices) {
const value = values[i];
if (value !== null && value !== undefined && value !== '' && value !== false && !isEmpty?.(value)) {
countNonEmpty++;
}
}
}
}
if (countNumeric > 0) {
const sumValue = sumFormatter ? sumFormatter.formatAny(sum) : String(sum);
summary.push({id: 'sum', label: 'Sum ', value: sumValue, clickToCopy: true});
} else {
summary.push({id: 'count', label: 'Count ', value: String(countNonEmpty), clickToCopy: true});
}
}
summary.push({id: 'dimensions', label: '', value: `${rowCount}${colCount}`});
}
this._summary.set(summary);
}
}
async function doCopy(value: string, elem: Element) {
await copyToClipboard(value);
showTransientTooltip(elem, t("Copied to clipboard"), {key: 'copy-selection-summary'});
}
const cssSummary = styled('div', `
position: absolute;
bottom: -18px;
height: 18px;
line-height: 18px;
display: flex;
column-gap: 8px;
width: 100%;
justify-content: end;
color: ${theme.text};
font-family: ${vars.fontFamilyData};
@media print {
& {
display: none;
}
}
`);
// Note: the use of an extra element for the background is to set its opacity, to make it a bit
// lighter (or darker, in dark-mode) than actual mediumGrey, without defining a special color.
const cssSummaryPart = styled('div', `
padding: 0 8px;
border-radius: 4px;
border-top-left-radius: 0px;
border-top-right-radius: 0px;
border-top: none;
z-index: 100;
position: relative;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
/* Set explicit backdrop to improve visibility in raw data views. */
background-color: ${theme.mainPanelBg};
&-copyable:hover {
cursor: pointer;
}
&::before {
content: "";
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
background-color: ${theme.tableCellSummaryBg};
opacity: 0.8;
z-index: -1;
}
`);
const cssLabelText = styled('span', `
font-size: ${vars.xsmallFontSize};
text-transform: uppercase;
position: relative;
margin-right: 4px;
.${cssSummaryPart.className}-copyable:hover & {
visibility: hidden;
}
`);
const cssCopyIcon = styled(icon, `
position: absolute;
top: 0;
margin: 1px 0 0 4px;
--icon-color: ${theme.controlFg};
display: none;
.${cssSummaryPart.className}-copyable:hover & {
display: block;
}
`);