import {CursorPos} from 'app/client/components/Cursor'; import {GristDoc} from 'app/client/components/GristDoc'; import {ColumnRec} from 'app/client/models/entities/ColumnRec'; import {buildHighlightedCode, cssCodeBlock} from 'app/client/ui/CodeHighlight'; import {cssEmptySeparator, cssLabel, cssRow} from 'app/client/ui/RightPanel'; import {buildFormulaTriggers} from 'app/client/ui/TriggerFormulas'; import {textButton} from 'app/client/ui2018/buttons'; import {colors, testId} from 'app/client/ui2018/cssVars'; import {textInput} from 'app/client/ui2018/editableLabel'; import {cssIconButton, icon} from 'app/client/ui2018/icons'; import {selectMenu, selectOption, selectTitle} from 'app/client/ui2018/menus'; import {sanitizeIdent} from 'app/common/gutil'; import {bundleChanges, Computed, dom, DomContents, DomElementArg, fromKo, MultiHolder, Observable, styled, subscribe} from 'grainjs'; import * as ko from 'knockout'; import debounce = require('lodash/debounce'); import {IconName} from 'app/client/ui2018/IconList'; export function buildNameConfig(owner: MultiHolder, origColumn: ColumnRec, cursor: ko.Computed) { const untieColId = origColumn.untieColIdFromLabel; const editedLabel = Observable.create(owner, ''); const editableColId = Computed.create(owner, editedLabel, (use, edited) => '$' + (edited ? sanitizeIdent(edited) : use(origColumn.colId))); const saveColId = (val: string) => origColumn.colId.saveOnly(val.startsWith('$') ? val.slice(1) : val); // We will listen to cursor position and force a blur event on // the text input, which will trigger save before the column observable // will change its value. // Otherwise, blur will be invoked after column change and save handler will // update a different column. let editor: HTMLInputElement | undefined; owner.autoDispose( cursor.subscribe(() => { editor?.blur(); }) ); return [ cssLabel('COLUMN LABEL AND ID'), cssRow( cssColLabelBlock( editor = textInput(fromKo(origColumn.label), async val => { await origColumn.label.saveOnly(val); editedLabel.set(''); }, dom.on('input', (ev, elem) => { if (!untieColId.peek()) { editedLabel.set(elem.value); } }), dom.boolAttr('disabled', origColumn.disableModify), testId('field-label'), ), textInput(editableColId, saveColId, dom.boolAttr('disabled', use => use(origColumn.disableModify) || !use(origColumn.untieColIdFromLabel)), cssCodeBlock.cls(''), {style: 'margin-top: 8px'}, testId('field-col-id'), ), ), cssColTieBlock( cssColTieConnectors(), cssToggleButton(icon('FieldReference'), cssToggleButton.cls('-selected', (use) => !use(untieColId)), dom.on('click', () => untieColId.saveOnly(!untieColId.peek())), testId('field-derive-id') ), ) ), ]; } type BuildEditor = ( cellElem: Element, editValue?: string, onSave?: (formula: string) => Promise, onCancel?: () => void) => void; type BEHAVIOR = "empty"|"formula"|"data"; export function buildFormulaConfig( owner: MultiHolder, origColumn: ColumnRec, gristDoc: GristDoc, buildEditor: BuildEditor ) { // Intermediate state - user wants to specify formula, but haven't done yet const maybeFormula = Observable.create(owner, false); // Intermediate state - user wants to specify formula, but haven't done yet const maybeTrigger = Observable.create(owner, false); // Column behaviour. There are 3 types of behaviors: // - empty: isFormula and formula == '' // - formula: isFormula and formula != '' // - data: not isFormula nd formula == '' const behavior = Computed.create(owner, (use) => { // When no id column is invalid, show nothing. if (!use(origColumn.id)) { return null; } // Column is a formula column, when it is a formula column with valid formula or will be a formula. if (use(origColumn.isRealFormula) || use(maybeFormula)) { return "formula"; } // If column is not empty, or empty but wants to be a trigger if (use(maybeTrigger) || !use(origColumn.isEmpty)) { return "data"; } return "empty"; }); // Reference to current editor, we will open it when user wants to specify a formula or trigger. // And close it dispose it when user opens up behavior menu. let formulaField: HTMLElement|null = null; // Helper function to clear temporary state (will be called when column changes or formula editor closes) const clearState = () => bundleChanges(() => { maybeFormula.set(false); maybeTrigger.set(false); formulaField = null; }); // Clear state when column has changed owner.autoDispose(origColumn.id.subscribe(clearState)); // Menu helper that will show normal menu with some default options const menu = (label: DomContents, options: DomElementArg[]) => cssRow( selectMenu( label, () => options, testId("field-behaviour"), // HACK: Menu helper will add tabindex to this element, which will make // this element focusable and will steal focus from clipboard. This in turn, // will not dispose the formula editor when menu is clicked. (el) => el.removeAttribute("tabindex"), dom.cls("disabled", origColumn.disableModify)), ); // Behaviour label const behaviorName = Computed.create(owner, behavior, (use, type) => { if (type === 'formula') { return "Formula Column"; } if (type === 'data') { return "Data Column"; } return "Empty Column"; }); const behaviorIcon = Computed.create(owner, (use) => { return use(behaviorName) === "Data Column" ? "Database" : "Script"; }); const behaviourLabel = () => selectTitle(behaviorName, behaviorIcon); // Actions on select menu: // Converts data column to formula column. const convertDataColumnToFormulaOption = () => selectOption( () => (maybeFormula.set(true), formulaField?.focus()), 'Clear and make into formula', 'Script'); // Converts to empty column and opens up the editor. (label is the same, but this is used when we have no formula) const convertTriggerToFormulaOption = () => selectOption( () => gristDoc.convertIsFormula([origColumn.id.peek()], {toFormula: true, noRecalc: true}), 'Clear and make into formula', 'Script'); // Convert column to data. // This method is also available through a text button. const convertToData = () => gristDoc.convertIsFormula([origColumn.id.peek()], {toFormula: false, noRecalc: true}); const convertToDataOption = () => selectOption( convertToData, 'Convert column to data', 'Database'); // Clears the column const clearAndResetOption = () => selectOption( () => gristDoc.clearColumns([origColumn.id.peek()]), 'Clear and reset', 'CrossSmall'); // Actions on text buttons: // Tries to convert data column to a trigger column. const convertDataColumnToTriggerColumn = () => { maybeTrigger.set(true); // Open the formula editor. formulaField?.focus(); }; // Converts formula column to trigger formula column. const convertFormulaToTrigger = () => gristDoc.convertIsFormula([origColumn.id.peek()], {toFormula: false, noRecalc: false}); const setFormula = () => (maybeFormula.set(true), formulaField?.focus()); const setTrigger = () => (maybeTrigger.set(true), formulaField?.focus()); // Actions on save formula // Converts column to formula column or updates formula on a formula column. const onSaveConvertToFormula = async (formula: string) => { const notBlank = Boolean(formula); const trueFormula = !maybeFormula.get(); if (notBlank || trueFormula) { await gristDoc.convertToFormula(origColumn.id.peek(), formula); } clearState(); }; // Updates formula or convert column to trigger formula column if necessary. const onSaveConvertToTrigger = async (formula: string) => { if (formula && maybeTrigger.get()) { // Convert column to trigger await gristDoc.convertToTrigger(origColumn.id.peek(), formula); } else if (origColumn.hasTriggerFormula.peek()) { // This is true trigger formula, just update the formula (or make it blank) await origColumn.formula.setAndSave(formula); } clearState(); }; const errorMessage = createFormulaErrorObs(owner, gristDoc, origColumn); // Helper that will create different flavors for formula builder. const formulaBuilder = (onSave: (formula: string) => Promise) => [ cssRow(formulaField = buildFormula( origColumn, buildEditor, "Enter formula", onSave, clearState)), dom.maybe(errorMessage, errMsg => cssRow(cssError(errMsg), testId('field-error-count'))), ]; return dom.maybe(behavior, (type: BEHAVIOR) => [ cssLabel('COLUMN BEHAVIOR'), ...(type === "empty" ? [ menu(behaviourLabel(), [ convertToDataOption() ]), cssEmptySeparator(), cssRow(textButton( "Set formula", dom.on("click", setFormula), dom.prop("disabled", origColumn.disableModify), testId("field-set-formula") )), cssRow(textButton( "Set trigger formula", dom.on("click", setTrigger), dom.prop("disabled", origColumn.disableModify), testId("field-set-trigger") )), cssRow(textButton( "Make into data column", dom.on("click", convertToData), dom.prop("disabled", origColumn.disableModify), testId("field-set-data") )) ] : type === "formula" ? [ menu(behaviourLabel(), [ convertToDataOption(), clearAndResetOption(), ]), formulaBuilder(onSaveConvertToFormula), cssEmptySeparator(), cssRow(textButton( "Convert to trigger formula", dom.on("click", convertFormulaToTrigger), dom.hide(maybeFormula), dom.prop("disabled", origColumn.disableModify), testId("field-set-trigger") )) ] : /* type == 'data' */ [ menu(behaviourLabel(), [ dom.domComputed(origColumn.hasTriggerFormula, (hasTrigger) => hasTrigger ? // If we have trigger, we will convert it directly to a formula column convertTriggerToFormulaOption() : // else we will convert to empty column and open up the editor convertDataColumnToFormulaOption() ), clearAndResetOption(), ] ), // If data column is or wants to be a trigger formula: dom.maybe((use) => use(maybeTrigger) || use(origColumn.hasTriggerFormula), () => [ cssLabel('TRIGGER FORMULA'), formulaBuilder(onSaveConvertToTrigger), dom.create(buildFormulaTriggers, origColumn, maybeTrigger) ]), // Else offer a way to convert to trigger formula. dom.maybe((use) => !(use(maybeTrigger) || use(origColumn.hasTriggerFormula)), () => [ cssEmptySeparator(), cssRow(textButton( "Set trigger formula", dom.on("click", convertDataColumnToTriggerColumn), dom.prop("disabled", origColumn.disableModify), testId("field-set-trigger") )) ]) ]) ]); } function buildFormula( column: ColumnRec, buildEditor: BuildEditor, placeholder: string, onSave?: (formula: string) => Promise, onCancel?: () => void) { return cssFieldFormula(column.formula, {placeholder, maxLines: 2}, dom.cls('formula_field_sidepane'), cssFieldFormula.cls('-disabled', column.disableModify), cssFieldFormula.cls('-disabled-icon', use => !use(column.formula)), dom.cls('disabled'), {tabIndex: '-1'}, // Focus event use used by a user to edit an existing formula. // It can also be triggered manually to open up the editor. dom.on('focus', (_, elem) => buildEditor(elem, undefined, onSave, onCancel)), ); } /** * Create and return an observable for the count of errors in a column, which gets updated in * response to changes in origColumn and in user data. */ function createFormulaErrorObs(owner: MultiHolder, gristDoc: GristDoc, origColumn: ColumnRec) { const errorMessage = Observable.create(owner, ''); // Count errors in origColumn when it's a formula column. Counts get cached by the // tableData.countErrors() method, and invalidated on relevant data changes. function countErrors() { if (owner.isDisposed()) { return; } const tableData = gristDoc.docData.getTable(origColumn.table.peek().tableId.peek()); const isFormula = origColumn.isRealFormula.peek() || origColumn.hasTriggerFormula.peek(); if (tableData && isFormula) { const colId = origColumn.colId.peek(); const numCells = tableData.getColValues(colId)?.length || 0; const numErrors = tableData.countErrors(colId) || 0; errorMessage.set( (numErrors === 0) ? '' : (numCells === 1) ? `Error in the cell` : (numErrors === numCells) ? `Errors in all ${numErrors} cells` : `Errors in ${numErrors} of ${numCells} cells` ); } else { errorMessage.set(''); } } // Debounce the count calculation to defer it to the end of a bundle of actions. const debouncedCountErrors = debounce(countErrors, 0); // If there is an update to the data in the table, count errors again. Since the same UI is // reused when different page widgets are selected, we need to re-create this subscription // whenever the selected table changes. We use a Computed to both react to changes and dispose // the previous subscription when it changes. Computed.create(owner, (use) => { const tableData = gristDoc.docData.getTable(use(use(origColumn.table).tableId)); return tableData ? use.owner.autoDispose(tableData.tableActionEmitter.addListener(debouncedCountErrors)) : null; }); // The counts depend on the origColumn and its isRealFormula status, but with the debounced // callback and subscription to data, subscribe to relevant changes manually (rather than using // a Computed). owner.autoDispose(subscribe(use => { use(origColumn.id); use(origColumn.isRealFormula); debouncedCountErrors(); })); return errorMessage; } const cssFieldFormula = styled(buildHighlightedCode, ` flex: auto; cursor: pointer; margin-top: 4px; padding-left: 24px; --icon-color: ${colors.lightGreen}; &-disabled-icon.formula_field_sidepane::before { --icon-color: ${colors.slate}; } &-disabled { pointer-events: none; } `); const cssToggleButton = styled(cssIconButton, ` margin-left: 8px; background-color: var(--grist-color-medium-grey-opaque); box-shadow: inset 0 0 0 1px ${colors.darkGrey}; &-selected, &-selected:hover { box-shadow: none; background-color: ${colors.dark}; --icon-color: ${colors.light}; } &-selected:hover { --icon-color: ${colors.darkGrey}; } `); const cssColLabelBlock = styled('div', ` display: flex; flex-direction: column; `); const cssColTieBlock = styled('div', ` position: relative; `); const cssColTieConnectors = styled('div', ` position: absolute; border: 2px solid var(--grist-color-dark-grey); top: -9px; bottom: -9px; right: 11px; left: 0px; border-left: none; z-index: -1; `); const cssError = styled('div', ` color: ${colors.error}; `);