gristlabs_grist-core/app/client/components/RefSelect.js
Paul Fitzpatrick 1654a2681f (core) move client code to core
Summary:
This moves all client code to core, and makes minimal fix-ups to
get grist and grist-core to compile correctly.  The client works
in core, but I'm leaving clean-up around the build and bundles to
follow-up.

Test Plan: existing tests pass; server-dev bundle looks sane

Reviewers: dsagal

Reviewed By: dsagal

Differential Revision: https://phab.getgrist.com/D2627
2020-10-02 13:24:21 -04:00

227 lines
7.7 KiB
JavaScript

var _ = require('underscore');
var ko = require('knockout');
var Promise = require('bluebird');
var koArray = require('../lib/koArray');
var dispose = require('../lib/dispose');
var tableUtil = require('../lib/tableUtil');
var gutil = require('app/common/gutil');
const {colors, testId} = require('app/client/ui2018/cssVars');
const {cssFieldEntry, cssFieldLabel} = require('app/client/ui/VisibleFieldsConfig');
const {dom, fromKo, styled} = require('grainjs');
const {icon} = require('app/client/ui2018/icons');
const {menu, menuItem, menuText} = require('app/client/ui2018/menus');
/**
* Builder for the reference display multiselect.
*/
function RefSelect(fieldConfigTab) {
this.docModel = fieldConfigTab.gristDoc.docModel;
this.origColumn = fieldConfigTab.origColumn;
this.colId = fieldConfigTab.colId;
this.isForeignRefCol = fieldConfigTab.isForeignRefCol;
// Computed for the current fieldBuilder's field, if it exists.
this.fieldObs = this.autoDispose(ko.computed(() => {
let builder = fieldConfigTab.fieldBuilder();
return builder ? builder.field : null;
}));
// List of valid cols in the currently referenced table.
this._validCols = this.autoDispose(ko.computed(() => {
var refTable = this.origColumn.refTable();
if (refTable) {
return refTable.columns().all().filter(col => !col.isHiddenCol() &&
!gutil.startsWith(col.type(), 'Ref:'));
}
return [];
}));
// Returns the array of columns added to the multiselect. Used as a helper to create a synced KoArray.
var _addedObs = this.autoDispose(ko.computed(() => {
return this.isForeignRefCol() && this.fieldObs() ?
this._getReferencedCols().map(c => ({ label: c.label(), value: c.colId() })) : [];
}));
// KoArray of columns displaying data from the referenced table in the current section.
this._added = this.autoDispose(koArray.syncedKoArray(_addedObs));
// Set of added colIds.
this._addedSet = this.autoDispose(ko.computed(() => new Set(this._added.all().map(item => item.value))));
}
dispose.makeDisposable(RefSelect);
/**
* Builds the multiselect dom to select columns to added to the table to show data from the
* referenced table.
*/
RefSelect.prototype.buildDom = function() {
return cssFieldList(
testId('ref-select'),
dom.forEach(fromKo(this._added), (col) =>
cssFieldEntry(
cssFieldLabel(dom.text(col.label)),
cssRemoveIcon('Remove',
dom.on('click', () => this._removeFormulaField(col)),
testId('ref-select-remove'),
),
testId('ref-select-item'),
)
),
cssAddLink(cssAddIcon('Plus'), 'Add Column',
menu(() => [
...this._validCols.peek()
.filter((col) => !this._addedSet.peek().has(col.colId.peek()))
.map((col) =>
menuItem(() => this._addFormulaField({label: col.label(), value: col.colId()}),
col.label.peek())
),
cssEmptyMenuText("No columns to add"),
testId('ref-select-menu'),
]),
testId('ref-select-add'),
),
);
};
const cssFieldList = styled('div', `
display: flex;
flex-direction: column;
width: 100%;
& > .${cssFieldEntry.className} {
margin: 2px 0;
}
`);
const cssEmptyMenuText = styled(menuText, `
font-size: inherit;
&:not(:first-child) {
display: none;
}
`);
const cssAddLink = styled('div', `
display: flex;
cursor: pointer;
color: ${colors.lightGreen};
--icon-color: ${colors.lightGreen};
&:not(:first-child) {
margin-top: 8px;
}
&:hover, &:focus, &:active {
color: ${colors.darkGreen};
--icon-color: ${colors.darkGreen};
}
`);
const cssAddIcon = styled(icon, `
margin-right: 4px;
`);
const cssRemoveIcon = styled(icon, `
display: none;
cursor: pointer;
flex: none;
margin-left: 8px;
.${cssFieldEntry.className}:hover & {
display: block;
}
`);
/**
* Adds the column item to the multiselect. If the visibleCol is 'id', sets the visibleCol.
* Otherwise, adds a field which refers to the column to the table. If a column with the
* necessary formula exists, only adds a field to this section, otherwise adds the necessary
* column and field.
*/
RefSelect.prototype._addFormulaField = function(item) {
var field = this.fieldObs();
var tableData = this.docModel.dataTables[this.origColumn.table().tableId()].tableData;
// Check if column already exists in the table
var cols = this.origColumn.table().columns().all();
var colMatch = cols.find(c => c.formula() === `$${this.colId()}.${item.value}` && !c.isHiddenCol());
// Get field position, so that the new field is inserted just after the current field.
var fields = field.viewSection().viewFields();
var index = fields.all()
.sort((a, b) => a.parentPos() > b.parentPos() ? a : b)
.findIndex(f => f.getRowId() === field.getRowId());
var pos = tableUtil.fieldInsertPositions(fields, index + 1)[0];
var colAction;
if (colMatch) {
// If column exists, use it.
colAction = Promise.resolve({ colRef: colMatch.getRowId(), colId: colMatch.colId() });
} else {
// If column doesn't exist, add it (without fields).
colAction = tableData.sendTableAction(['AddHiddenColumn', `${this.colId()}_${item.value}`, {
type: 'Any',
isFormula: true,
formula: `$${this.colId()}.${item.value}`,
_position: pos
}]);
}
return colAction.then(colInfo => {
// Add field to the current section.
var fieldInfo = {
colRef: colInfo.colRef,
parentId: field.viewSection().getRowId(),
parentPos: pos
};
return this.docModel.viewFields.sendTableAction(['AddRecord', null, fieldInfo]);
});
};
/**
* Removes the column item from the multiselect. If the item is the visibleCol, clears to show
* row id. Otherwise, removes all fields which refer to the column from the table.
*/
RefSelect.prototype._removeFormulaField = function(item) {
var tableData = this.docModel.dataTables[this.origColumn.table().tableId()].tableData;
// Iterate through all display fields in the current section.
this._getReferrerFields(item.value).forEach(refField => {
var sectionId = this.fieldObs().viewSection().getRowId();
if (_.any(refField.column().viewFields().all(), field => field.parentId() !== sectionId)) {
// The col has fields in other sections, remove only the fields in this section.
this.docModel.viewFields.sendTableAction(['RemoveRecord', refField.getRowId()]);
} else {
// The col is only displayed in this section, remove the column.
tableData.sendTableAction(['RemoveColumn', refField.column().colId()]);
}
});
};
/**
* Returns a list of fields in the current section whose formulas refer to 'colId' in the table this
* reference column refers to.
*/
RefSelect.prototype._getReferrerFields = function(colId) {
var re = new RegExp("^\\$" + this.colId() + "\\." + colId + "$");
return this.fieldObs().viewSection().viewFields().all()
.filter(field => re.exec(field.column().formula()));
};
/**
* Returns a non-repeating list of columns in the referenced table referred to by fields in
* the current section.
*/
RefSelect.prototype._getReferencedCols = function() {
var matchesSet = this._getFormulaMatchSet();
return this._validCols().filter(c => matchesSet.has(c.colId()));
};
/**
* Helper function for getReferencedCols. Iterates through fields in
* the current section, returning a set of colIds which those fields' formulas refer to.
*/
RefSelect.prototype._getFormulaMatchSet = function() {
var fields = this.fieldObs().viewSection().viewFields().all();
var re = new RegExp("^\\$" + this.colId() + "\\.(\\w+)$");
return new Set(fields.map(field => {
var found = re.exec(field.column().formula());
return found ? found[1] : null;
}));
};
module.exports = RefSelect;