2 * Collection of grid related classses and interfaces.
4 import {TemplateRef, EventEmitter, QueryList} from '@angular/core';
5 import {Observable, Subscription, empty} from 'rxjs';
6 import {IdlService, IdlObject} from '@eg/core/idl.service';
7 import {OrgService} from '@eg/core/org.service';
8 import {ServerStoreService} from '@eg/core/server-store.service';
9 import {FormatService} from '@eg/core/format.service';
10 import {Pager} from '@eg/share/util/pager';
11 import {GridFilterControlComponent} from './grid-filter-control.component';
13 const MAX_ALL_ROW_COUNT = 10000;
15 export class GridColumn {
25 // IDL class of the object which contains this field.
26 // Not to be confused with the class of a linked object.
30 datePlusTime: boolean;
32 timezoneContextOrg: number;
33 cellTemplate: TemplateRef<any>;
34 dateOnlyIntervalField: string;
38 isDragTarget: boolean;
40 isFilterable: boolean;
42 isMultiSortable: boolean;
43 disableTooltip: boolean;
44 asyncSupportsEmptyTermClick: boolean;
45 comparator: (valueA: any, valueB: any) => number;
48 // True if the column was automatically generated.
53 filterOperator: string;
54 filterInputDisabled: boolean;
55 filterIncludeOrgAncestors: boolean;
56 filterIncludeOrgDescendants: boolean;
58 flesher: (obj: any, col: GridColumn, item: any) => any;
60 getCellContext(row: any) {
64 userContext: this.cellContext
73 this.isFiltered = false;
74 this.filterValue = undefined;
75 this.filterOperator = '=';
76 this.filterInputDisabled = false;
77 this.filterIncludeOrgAncestors = false;
78 this.filterIncludeOrgDescendants = false;
82 const col = new GridColumn();
86 col.label = this.label;
88 col.required = this.required;
89 col.hidden = this.hidden;
90 col.asyncSupportsEmptyTermClick = this.asyncSupportsEmptyTermClick;
91 col.isIndex = this.isIndex;
92 col.cellTemplate = this.cellTemplate;
93 col.cellContext = this.cellContext;
94 col.disableTooltip = this.disableTooltip;
95 col.isSortable = this.isSortable;
96 col.isFilterable = this.isFilterable;
97 col.isMultiSortable = this.isMultiSortable;
98 col.datatype = this.datatype;
99 col.datePlusTime = this.datePlusTime;
100 col.ternaryBool = this.ternaryBool;
101 col.timezoneContextOrg = this.timezoneContextOrg;
102 col.idlClass = this.idlClass;
103 col.isAuto = this.isAuto;
110 export class GridColumnSet {
111 columns: GridColumn[];
113 indexColumn: GridColumn;
115 isFilterable: boolean;
116 isMultiSortable: boolean;
117 stockVisible: string[];
119 defaultHiddenFields: string[];
120 defaultVisibleFields: string[];
122 constructor(idl: IdlService, idlClass?: string) {
125 this.stockVisible = [];
126 this.idlClass = idlClass;
129 add(col: GridColumn) {
131 if (col.path && col.path.match(/\*$/)) {
132 return this.generateWildcardColumns(col);
135 this.applyColumnDefaults(col);
137 if (!this.insertColumn(col)) {
138 // Column was rejected as a duplicate.
142 if (col.isIndex) { this.indexColumn = col; }
144 // track which fields are visible on page load.
146 this.stockVisible.push(col.name);
149 this.applyColumnSortability(col);
150 this.applyColumnFilterability(col);
153 generateWildcardColumns(col: GridColumn) {
155 const dotpath = col.path.replace(/\.?\*$/, '');
156 let classObj, idlField;
159 classObj = this.idl.classes[col.idlClass];
161 classObj = this.idl.classes[this.idlClass];
164 if (!classObj) { return; }
166 const pathParts = dotpath.split(/\./);
169 // find the IDL class definition for the last element in the
170 // path before the .*
171 // An empty pathParts means expand the root class
172 pathParts.forEach((part, pathIdx) => {
174 idlField = classObj.field_map[part];
176 // unless we're at the end of the list, this field should
177 // link to another class.
178 if (idlField && idlField['class'] && (
179 idlField.datatype === 'link' || idlField.datatype === 'org_unit')) {
180 classObj = this.idl.classes[idlField['class']];
183 if (pathIdx < (pathParts.length - 1)) {
184 // we ran out of classes to hop through before
185 // we ran out of path components
186 console.warn('Grid: invalid IDL path: ' + dotpath);
193 'Grid: wildcard path does not resolve to an object:' + dotpath);
197 classObj.fields.forEach(field => {
199 // Only show wildcard fields where we have data to show
200 // Virtual and un-fleshed links will not have any data.
202 field.datatype === 'link' || field.datatype === 'org_unit') {
206 const newCol = col.clone();
207 newCol.isAuto = true;
208 newCol.path = dotpath ? dotpath + '.' + field.name : field.name;
209 newCol.label = dotpath ? classObj.label + ': ' + field.label : field.label;
210 newCol.datatype = field.datatype;
212 // Avoid including the class label prefix in the main grid
213 // header display so it doesn't take up so much horizontal space.
214 newCol.headerLabel = field.label;
220 // Returns true if the new column was inserted, false otherwise.
221 // Declared columns take precedence over auto-generated columns
222 // when collisions occur.
223 // Declared columns are inserted in front of auto columns.
224 insertColumn(col: GridColumn): boolean {
227 if (this.getColByName(col.name) || this.getColByPath(col.path)) {
228 // New auto-generated column conflicts with existing
232 // No collisions. Add to the end of the list
233 this.columns.push(col);
238 // Adding a declared column.
241 for (let idx = 0; idx < this.columns.length; idx++) {
242 const testCol = this.columns[idx];
243 if (testCol.name === col.name) { // match found
244 if (testCol.isAuto) {
245 // new column takes precedence, remove the existing column.
246 this.columns.splice(idx, 1);
249 // New column does not take precedence. Avoid
256 // Delcared columns are inserted just before the first auto-column
257 for (let idx = 0; idx < this.columns.length; idx++) {
258 const testCol = this.columns[idx];
259 if (testCol.isAuto) {
261 this.columns.unshift(col);
263 this.columns.splice(idx, 0, col);
269 // No insertion point found. Toss the new column on the end.
270 this.columns.push(col);
274 getColByName(name: string): GridColumn {
275 return this.columns.filter(c => c.name === name)[0];
278 getColByPath(path: string): GridColumn {
280 return this.columns.filter(c => c.path === path)[0];
284 idlInfoFromDotpath(dotpath: string): any {
285 if (!dotpath || !this.idlClass) { return null; }
290 let nextIdlClass = this.idl.classes[this.idlClass];
292 const pathParts = dotpath.split(/\./);
294 for (let i = 0; i < pathParts.length; i++) {
296 const part = pathParts[i];
297 idlParent = idlField;
298 idlClass = nextIdlClass;
299 idlField = idlClass.field_map[part];
301 if (!idlField) { return null; } // invalid IDL path
303 if (i === pathParts.length - 1) {
304 // No more links to process.
308 if (idlField['class'] && (
309 idlField.datatype === 'link' ||
310 idlField.datatype === 'org_unit')) {
311 // The link class on the current field refers to the
312 // class of the link destination, not the current field.
313 // Mark it for processing during the next iteration.
314 nextIdlClass = this.idl.classes[idlField['class']];
319 idlParent: idlParent,
327 this.columns.forEach(col => {
331 col.visible = this.stockVisible.includes(col.name);
335 applyColumnDefaults(col: GridColumn) {
337 if (!col.idlFieldDef) {
338 const idlInfo = this.idlInfoFromDotpath(col.path || col.name);
340 col.idlFieldDef = idlInfo.idlField;
341 col.idlClass = idlInfo.idlClass.name;
343 col.datatype = col.idlFieldDef.datatype;
346 col.label = col.idlFieldDef.label || col.idlFieldDef.name;
351 if (!col.name) { col.name = col.path; }
352 if (!col.flex) { col.flex = 2; }
353 if (!col.align) { col.align = 'left'; }
354 if (!col.label) { col.label = col.name; }
355 if (!col.datatype) { col.datatype = 'text'; }
356 if (!col.isAuto) { col.headerLabel = col.label; }
358 col.visible = !col.hidden;
361 applyColumnSortability(col: GridColumn) {
362 // column sortability defaults to the sortability of the column set.
363 if (col.isSortable === undefined && this.isSortable) {
364 col.isSortable = true;
367 if (col.isMultiSortable === undefined && this.isMultiSortable) {
368 col.isMultiSortable = true;
371 if (col.isMultiSortable) {
372 col.isSortable = true;
375 applyColumnFilterability(col: GridColumn) {
376 // column filterability defaults to the afilterability of the column set.
377 if (col.isFilterable === undefined && this.isFilterable) {
378 col.isFilterable = true;
382 displayColumns(): GridColumn[] {
383 return this.columns.filter(c => c.visible);
386 // Sorted visible columns followed by sorted non-visible columns.
387 // Note we don't sort this.columns directly as it would impact
388 // grid column display ordering.
389 sortForColPicker(): GridColumn[] {
390 const visible = this.columns.filter(c => c.visible);
391 const invisible = this.columns.filter(c => !c.visible);
393 visible.sort((a, b) => a.label < b.label ? -1 : 1);
394 invisible.sort((a, b) => a.label < b.label ? -1 : 1);
396 return visible.concat(invisible);
399 requiredColumns(): GridColumn[] {
400 const visible = this.displayColumns();
401 return visible.concat(
402 this.columns.filter(c => c.required && !c.visible));
405 // Sorted visible columns followed by sorted non-visible columns.
406 // Note we don't sort this.columns directly as it would impact
407 // grid column display ordering.
408 sortForColPicker(): GridColumn[] {
409 const visible = this.columns.filter(c => c.visible);
410 const invisible = this.columns.filter(c => !c.visible);
412 visible.sort((a, b) => a.label < b.label ? -1 : 1);
413 invisible.sort((a, b) => a.label < b.label ? -1 : 1);
415 return visible.concat(invisible);
418 insertBefore(source: GridColumn, target: GridColumn) {
421 this.columns.forEach((col, idx) => {
422 if (col.name === target.name) { targetIdx = idx; }});
424 this.columns.forEach((col, idx) => {
425 if (col.name === source.name) { sourceIdx = idx; }});
427 if (sourceIdx >= 0) {
428 this.columns.splice(sourceIdx, 1);
431 this.columns.splice(targetIdx, 0, source);
434 // Move visible columns to the front of the list.
435 moveVisibleToFront() {
436 const newCols = this.displayColumns();
437 this.columns.forEach(col => {
438 if (!col.visible) { newCols.push(col); }});
439 this.columns = newCols;
442 moveColumn(col: GridColumn, diff: number) {
443 let srcIdx, targetIdx;
445 this.columns.forEach((c, i) => {
446 if (c.name === col.name) { srcIdx = i; }
449 targetIdx = srcIdx + diff;
452 } else if (targetIdx >= this.columns.length) {
453 // Target index follows the last visible column.
455 this.columns.forEach((c, idx) => {
456 if (c.visible) { lastVisible = idx; }
459 // When moving a column (down) causes one or more
460 // visible columns to shuffle forward, our column
461 // moves into the slot of the last visible column.
462 // Otherwise, put it into the slot directly following
463 // the last visible column.
464 targetIdx = srcIdx <= lastVisible ? lastVisible : lastVisible + 1;
467 // Splice column out of old position, insert at new position.
468 this.columns.splice(srcIdx, 1);
469 this.columns.splice(targetIdx, 0, col);
472 compileSaveObject(): GridColumnPersistConf[] {
473 // only store information about visible columns.
474 // scrunch the data down to just the needed info.
475 return this.displayColumns().map(col => {
476 const c: GridColumnPersistConf = {name : col.name};
477 if (col.align !== 'left') { c.align = col.align; }
478 if (col.flex !== 2) { c.flex = Number(col.flex); }
479 if (Number(col.sort)) { c.sort = Number(col.sort); }
484 applyColumnSettings(conf: GridColumnPersistConf[]) {
486 if (!conf || conf.length === 0) {
487 // No configuration is available, but we have a list of
488 // fields to show or hide by default
490 if (this.defaultVisibleFields) {
491 this.columns.forEach(col => {
492 if (this.defaultVisibleFields.includes(col.name)) {
499 } else if (this.defaultHiddenFields) {
500 this.defaultHiddenFields.forEach(name => {
501 const col = this.getColByName(name);
513 conf.forEach(colConf => {
514 const col = this.getColByName(colConf.name);
515 if (!col) { return; } // no such column in this grid.
518 if (colConf.align) { col.align = colConf.align; }
519 if (colConf.flex) { col.flex = Number(colConf.flex); }
520 if (colConf.sort) { col.sort = Number(colConf.sort); }
522 // Add to new columns array, avoid dupes.
523 if (newCols.filter(c => c.name === col.name).length === 0) {
528 // columns which are not expressed within the saved
529 // configuration are marked as non-visible and
530 // appended to the end of the new list of columns.
531 this.columns.forEach(c => {
532 if (conf.filter(cf => cf.name === c.name).length === 0) {
538 this.columns = newCols;
542 // Maps colunm names to functions which return plain text values for
543 // each mapped column on a given row. This is primarily useful for
544 // generating print-friendly content for grid cells rendered via
547 // USAGE NOTE: Since a cellTemplate can be passed arbitrary context
548 // but a GridCellTextGenerator only gets the row object,
549 // if it's important to include content that's not available
550 // by default in the row object, you may want to stick
551 // it in the row object as an additional attribute.
553 export interface GridCellTextGenerator {
554 [columnName: string]: (row: any) => string;
557 export class GridRowSelector {
558 indexes: {[string: string]: boolean};
560 // Track these so we can emit the selectionChange event
561 // only when the selection actually changes.
562 previousSelection: string[] = [];
564 // Emits the selected indexes on selection change
565 selectionChange: EventEmitter<string[]> = new EventEmitter<string[]>();
571 // Returns true if all of the requested indexes exist in the selector.
572 contains(index: string | string[]): boolean {
573 const indexes = [].concat(index);
574 for (let i = 0; i < indexes.length; i++) { // early exit
575 if (!this.indexes[indexes[i]]) {
583 const keys = this.selected();
585 if (keys.length === this.previousSelection.length &&
586 this.contains(this.previousSelection)) {
587 return; // No change has occurred
590 this.previousSelection = keys;
591 this.selectionChange.emit(keys);
594 select(index: string | string[]) {
595 const indexes = [].concat(index);
596 indexes.forEach(i => this.indexes[i] = true);
600 deselect(index: string | string[]) {
601 const indexes = [].concat(index);
602 indexes.forEach(i => delete this.indexes[i]);
606 toggle(index: string) {
607 if (this.indexes[index]) {
608 this.deselect(index);
614 selected(): string[] {
615 return Object.keys(this.indexes);
619 return this.selected().length === 0;
628 export interface GridRowFlairEntry {
629 icon: string; // name of material icon
630 title?: string; // tooltip string
633 export class GridColumnPersistConf {
640 export class GridPersistConf {
643 columns: GridColumnPersistConf[];
644 hideToolbarActions: string[];
647 export class GridContext {
652 isFilterable: boolean;
653 stickyGridHeader: boolean;
654 isMultiSortable: boolean;
655 useLocalSort: boolean;
657 disableMultiSelect: boolean;
658 disableSelect: boolean;
659 dataSource: GridDataSource;
660 columnSet: GridColumnSet;
661 autoGeneratedColumnOrder: string;
662 rowSelector: GridRowSelector;
663 toolbarLabel: string;
664 toolbarButtons: GridToolbarButton[];
665 toolbarCheckboxes: GridToolbarCheckbox[];
666 toolbarActions: GridToolbarAction[];
667 lastSelectedIndex: any;
668 pageChanges: Subscription;
669 rowFlairIsEnabled: boolean;
670 rowFlairCallback: (row: any) => GridRowFlairEntry;
671 rowClassCallback: (row: any) => string;
672 cellClassCallback: (row: any, col: GridColumn) => string;
673 defaultVisibleFields: string[];
674 defaultHiddenFields: string[];
675 ignoredFields: string[];
676 overflowCells: boolean;
677 disablePaging: boolean;
678 showDeclaredFieldsOnly: boolean;
679 cellTextGenerator: GridCellTextGenerator;
680 reloadOnColumnChange: boolean;
682 // Allow calling code to know when the select-all-rows-in-page
683 // action has occurred.
684 selectRowsInPageEmitter: EventEmitter<void>;
686 filterControls: QueryList<GridFilterControlComponent>;
688 // Services injected by our grid component
691 store: ServerStoreService;
692 format: FormatService;
697 store: ServerStoreService,
698 format: FormatService) {
703 this.format = format;
704 this.pager = new Pager();
705 this.rowSelector = new GridRowSelector();
706 this.toolbarButtons = [];
707 this.toolbarCheckboxes = [];
708 this.toolbarActions = [];
712 this.selectRowsInPageEmitter = new EventEmitter<void>();
713 this.columnSet = new GridColumnSet(this.idl, this.idlClass);
714 this.columnSet.isSortable = this.isSortable === true;
715 this.columnSet.isFilterable = this.isFilterable === true;
716 this.columnSet.isMultiSortable = this.isMultiSortable === true;
717 this.columnSet.defaultHiddenFields = this.defaultHiddenFields;
718 this.columnSet.defaultVisibleFields = this.defaultVisibleFields;
719 if (!this.pager.limit) {
720 this.pager.limit = this.disablePaging ? MAX_ALL_ROW_COUNT : 10;
722 this.generateColumns();
725 // Load initial settings and data.
727 this.applyGridConfig()
728 .then(ok => this.dataSource.requestPage(this.pager))
729 .then(ok => this.listenToPager());
736 applyGridConfig(): Promise<void> {
737 return this.getGridConfig(this.persistKey)
741 columns = conf.columns;
742 if (conf.limit && !this.disablePaging) {
743 this.pager.limit = conf.limit;
745 this.applyToolbarActionVisibility(conf.hideToolbarActions);
748 // This is called regardless of the presence of saved
749 // settings so defaults can be applied.
750 this.columnSet.applyColumnSettings(columns);
754 applyToolbarActionVisibility(hidden: string[]) {
755 if (!hidden || hidden.length === 0) { return; }
758 this.toolbarActions.forEach(action => {
759 if (action.isGroup) {
761 } else if (!action.isSeparator) {
762 action.hidden = hidden.includes(action.label);
766 // If all actions in a group are hidden, hide the group as well.
767 // Note the group may be marked as hidden in the configuration,
768 // but the addition of new entries within a group should cause
769 // it to be visible again.
770 groups.forEach(group => {
771 const visible = this.toolbarActions
772 .filter(action => action.group === group.label && !action.hidden);
773 group.hidden = visible.length === 0;
778 // Give the UI time to settle before reloading grid data.
779 // This can help when data retrieval depends on a value
780 // getting modified by an angular digest cycle.
783 this.dataSource.reset();
784 this.dataSource.requestPage(this.pager);
788 reloadWithoutPagerReset() {
790 this.dataSource.reset();
791 this.dataSource.requestPage(this.pager);
795 // Sort the existing data source instead of requesting sorted
796 // data from the client. Reset pager to page 1. As with reload(),
797 // give the client a chance to setting before redisplaying.
801 this.sortLocalData();
802 this.dataSource.requestPage(this.pager);
806 // Subscribe or unsubscribe to page-change events from the pager.
808 if (this.pageChanges) { return; }
809 this.pageChanges = this.pager.onChange$.subscribe(
810 val => this.dataSource.requestPage(this.pager));
814 if (!this.pageChanges) { return; }
815 this.pageChanges.unsubscribe();
816 this.pageChanges = null;
819 // Sort data in the data source array
822 const sortDefs = this.dataSource.sort.map(sort => {
823 const column = this.columnSet.getColByName(sort.name);
831 if (!def.col.comparator) {
832 switch (def.col.datatype) {
836 def.col.comparator = (a, b) => {
839 if (a < b) { return -1; }
840 if (a > b) { return 1; }
845 def.col.comparator = (a, b) => {
846 if (a < b) { return -1; }
847 if (a > b) { return 1; }
856 this.dataSource.data.sort((rowA, rowB) => {
858 for (let idx = 0; idx < sortDefs.length; idx++) {
859 const sortDef = sortDefs[idx];
861 const valueA = this.getRowColumnValue(rowA, sortDef.col);
862 const valueB = this.getRowColumnValue(rowB, sortDef.col);
864 if (valueA === '' && valueB === '') { continue; }
865 if (valueA === '' && valueB !== '') { return 1; }
866 if (valueA !== '' && valueB === '') { return -1; }
868 const diff = sortDef.col.comparator(valueA, valueB);
869 if (diff === 0) { continue; }
871 return sortDef.dir === 'DESC' ? -diff : diff;
874 return 0; // No differences found.
878 getRowIndex(row: any): any {
879 const col = this.columnSet.indexColumn;
881 throw new Error('grid index column required');
883 return this.getRowColumnValue(row, col);
886 // Returns position in the data source array of the row with
887 // the provided index.
888 getRowPosition(index: any): number {
889 // for-loop for early exit
890 for (let idx = 0; idx < this.dataSource.data.length; idx++) {
891 const row = this.dataSource.data[idx];
892 if (row !== undefined && index === this.getRowIndex(row)) {
898 // Return the row with the provided index.
899 getRowByIndex(index: any): any {
900 for (let idx = 0; idx < this.dataSource.data.length; idx++) {
901 const row = this.dataSource.data[idx];
902 if (row !== undefined && index === this.getRowIndex(row)) {
908 // Returns all selected rows, regardless of whether they are
909 // currently visible in the grid display.
910 // De-selects previously selected rows which are no longer
911 // present in the grid.
912 getSelectedRows(): any[] {
916 this.rowSelector.selected().forEach(index => {
917 const row = this.getRowByIndex(index);
925 this.rowSelector.deselect(deleted);
929 rowIsSelected(row: any): boolean {
930 const index = this.getRowIndex(row);
931 return this.rowSelector.selected().filter(
936 getRowColumnBareValue(row: any, col: GridColumn): any {
937 if (col.name in row) {
938 return this.getObjectFieldValue(row, col.name);
939 } else if (col.path) {
940 return this.nestedItemFieldValue(row, col);
944 getRowColumnValue(row: any, col: GridColumn): any {
945 const val = this.getRowColumnBareValue(row, col);
947 if (col.datatype === 'bool') {
948 // Avoid string-ifying bools so we can use an <eg-bool/>
949 // in the grid template.
954 const intField = col.dateOnlyIntervalField;
957 this.columnSet.columns.filter(c => c.path === intField)[0];
959 interval = this.getRowColumnBareValue(row, intCol);
963 return this.format.transform({
965 idlClass: col.idlClass,
966 idlField: col.idlFieldDef ? col.idlFieldDef.name : col.name,
967 datatype: col.datatype,
968 datePlusTime: Boolean(col.datePlusTime),
969 timezoneContextOrg: Number(col.timezoneContextOrg),
970 dateOnlyInterval: interval
974 getObjectFieldValue(obj: any, name: string): any {
975 if (typeof obj[name] === 'function') {
982 nestedItemFieldValue(obj: any, col: GridColumn): string {
986 const original = obj;
987 const steps = col.path.split('.');
989 for (let i = 0; i < steps.length; i++) {
990 const step = steps[i];
992 if (obj === null || obj === undefined || typeof obj !== 'object') {
993 // We have run out of data to step through before
994 // reaching the end of the path. Conclude fleshing via
995 // callback if provided then exit.
996 if (col.flesher && obj !== undefined) {
997 return col.flesher(obj, col, original);
1002 const class_ = obj.classname;
1003 if (class_ && (idlClassDef = this.idl.classes[class_])) {
1004 idlField = idlClassDef.field_map[step];
1007 obj = this.getObjectFieldValue(obj, step);
1010 // We found a nested IDL object which may or may not have
1011 // been configured as a top-level column. Flesh the column
1012 // metadata with our newly found IDL info.
1014 if (!col.datatype) {
1015 col.datatype = idlField.datatype;
1017 if (!col.idlFieldDef) {
1018 idlField = col.idlFieldDef;
1020 if (!col.idlClass) {
1021 col.idlClass = idlClassDef.name;
1024 col.label = idlField.label || idlField.name;
1032 getColumnTextContent(row: any, col: GridColumn): string {
1033 if (this.columnHasTextGenerator(col)) {
1034 const str = this.cellTextGenerator[col.name](row);
1035 return (str === null || str === undefined) ? '' : str;
1037 if (col.cellTemplate) {
1038 return ''; // avoid 'undefined' values
1040 return this.getRowColumnValue(row, col);
1045 selectOneRow(index: any) {
1046 this.rowSelector.clear();
1047 this.rowSelector.select(index);
1048 this.lastSelectedIndex = index;
1051 selectMultipleRows(indexes: any[]) {
1052 this.rowSelector.clear();
1053 this.rowSelector.select(indexes);
1054 this.lastSelectedIndex = indexes[indexes.length - 1];
1057 // selects or deselects an item, without affecting the others.
1058 // returns true if the item is selected; false if de-selected.
1059 toggleSelectOneRow(index: any) {
1060 if (this.rowSelector.contains(index)) {
1061 this.rowSelector.deselect(index);
1065 this.rowSelector.select(index);
1066 this.lastSelectedIndex = index;
1070 selectRowByPos(pos: number) {
1071 const row = this.dataSource.data[pos];
1073 this.selectOneRow(this.getRowIndex(row));
1077 selectPreviousRow() {
1078 if (!this.lastSelectedIndex) { return; }
1079 const pos = this.getRowPosition(this.lastSelectedIndex);
1080 if (pos === this.pager.offset) {
1081 this.toPrevPage().then(ok => this.selectLastRow(), err => {});
1083 this.selectRowByPos(pos - 1);
1088 if (!this.lastSelectedIndex) { return; }
1089 const pos = this.getRowPosition(this.lastSelectedIndex);
1090 if (pos === (this.pager.offset + this.pager.limit - 1)) {
1091 this.toNextPage().then(ok => this.selectFirstRow(), err => {});
1093 this.selectRowByPos(pos + 1);
1098 // Select the previous row in addition to any currently selected row.
1099 // However, if the previous row is already selected, assume the user
1100 // has reversed direction and now wants to de-select the last selected row.
1101 selectMultiRowsPrevious() {
1102 if (!this.lastSelectedIndex) { return; }
1103 const pos = this.getRowPosition(this.lastSelectedIndex);
1104 const selectedIndexes = this.rowSelector.selected();
1106 const promise = // load the previous page of data if needed
1107 (pos === this.pager.offset) ? this.toPrevPage() : Promise.resolve();
1111 const row = this.dataSource.data[pos - 1];
1112 const newIndex = this.getRowIndex(row);
1113 if (selectedIndexes.filter(i => i === newIndex).length > 0) {
1114 // Prev row is already selected. User is reversing direction.
1115 this.rowSelector.deselect(this.lastSelectedIndex);
1116 this.lastSelectedIndex = newIndex;
1118 this.selectMultipleRows(selectedIndexes.concat(newIndex));
1125 // Select all rows between the previously selected row and
1126 // the provided row, including the provided row.
1127 // This is additive only -- rows are never de-selected.
1128 selectRowRange(index: any) {
1130 if (!this.lastSelectedIndex) {
1131 this.selectOneRow(index);
1135 const next = this.getRowPosition(index);
1136 const prev = this.getRowPosition(this.lastSelectedIndex);
1137 const start = Math.min(prev, next);
1138 const end = Math.max(prev, next);
1140 for (let idx = start; idx <= end; idx++) {
1141 const row = this.dataSource.data[idx];
1143 this.rowSelector.select(this.getRowIndex(row));
1147 this.lastSelectedIndex = index;
1151 // Select the next row in addition to any currently selected row.
1152 // However, if the next row is already selected, assume the user
1153 // has reversed direction and wants to de-select the last selected row.
1154 selectMultiRowsNext() {
1155 if (!this.lastSelectedIndex) { return; }
1156 const pos = this.getRowPosition(this.lastSelectedIndex);
1157 const selectedIndexes = this.rowSelector.selected();
1159 const promise = // load the next page of data if needed
1160 (pos === (this.pager.offset + this.pager.limit - 1)) ?
1161 this.toNextPage() : Promise.resolve();
1165 const row = this.dataSource.data[pos + 1];
1166 const newIndex = this.getRowIndex(row);
1167 if (selectedIndexes.filter(i => i === newIndex).length > 0) {
1168 // Next row is already selected. User is reversing direction.
1169 this.rowSelector.deselect(this.lastSelectedIndex);
1170 this.lastSelectedIndex = newIndex;
1172 this.selectMultipleRows(selectedIndexes.concat(newIndex));
1179 getFirstRowInPage(): any {
1180 return this.dataSource.data[this.pager.offset];
1183 getLastRowInPage(): any {
1184 return this.dataSource.data[this.pager.offset + this.pager.limit - 1];
1188 this.selectOneRow(this.getRowIndex(this.getFirstRowInPage()));
1192 this.selectOneRow(this.getRowIndex(this.getLastRowInPage()));
1195 selectRowsInPage() {
1196 const rows = this.dataSource.getPageOfRows(this.pager);
1197 const indexes = rows.map(r => this.getRowIndex(r));
1198 this.rowSelector.select(indexes);
1199 this.selectRowsInPageEmitter.emit();
1202 toPrevPage(): Promise<any> {
1203 if (this.pager.isFirstPage()) {
1204 return Promise.reject('on first');
1206 // temp ignore pager events since we're calling requestPage manually.
1208 this.pager.decrement();
1209 this.listenToPager();
1210 return this.dataSource.requestPage(this.pager);
1213 toNextPage(): Promise<any> {
1214 if (this.pager.isLastPage()) {
1215 return Promise.reject('on last');
1217 // temp ignore pager events since we're calling requestPage manually.
1219 this.pager.increment();
1220 this.listenToPager();
1221 return this.dataSource.requestPage(this.pager);
1224 getAllRows(): Promise<any> {
1225 const pager = new Pager();
1227 pager.limit = MAX_ALL_ROW_COUNT;
1228 return this.dataSource.requestPage(pager);
1231 // Returns a key/value pair object of visible column data as text.
1232 getRowAsFlatText(row: any): any {
1234 this.columnSet.displayColumns().forEach(col => {
1236 this.getColumnTextContent(row, col);
1241 getAllRowsAsText(): Observable<any> {
1242 return Observable.create(observer => {
1243 this.getAllRows().then(ok => {
1244 this.dataSource.data.forEach(row => {
1245 observer.next(this.getRowAsFlatText(row));
1247 observer.complete();
1252 removeFilters(): void {
1253 this.dataSource.filters = {};
1254 this.columnSet.displayColumns().forEach(col => { col.removeFilter(); });
1255 this.filterControls.forEach(ctl => ctl.reset());
1258 filtersSet(): boolean {
1259 return Object.keys(this.dataSource.filters).length > 0;
1262 gridToCsv(): Promise<string> {
1265 const columns = this.columnSet.displayColumns();
1268 columns.forEach(col => {
1269 csvStr += this.valueToCsv(col.label),
1273 csvStr = csvStr.replace(/,$/, '\n');
1275 return new Promise(resolve => {
1276 this.getAllRowsAsText().subscribe(
1278 columns.forEach(col => {
1279 csvStr += this.valueToCsv(row[col.name]);
1282 csvStr = csvStr.replace(/,$/, '\n');
1285 () => resolve(csvStr)
1291 // prepares a string for inclusion within a CSV document
1292 // by escaping commas and quotes and removing newlines.
1293 valueToCsv(str: string): string {
1295 if (!str) { return ''; }
1296 str = str.replace(/\n/g, '');
1297 if (str.match(/\,/) || str.match(/"/)) {
1298 str = str.replace(/"/g, '""');
1299 str = '"' + str + '"';
1305 if (!this.columnSet.idlClass) { return; }
1307 const pkeyField = this.idl.classes[this.columnSet.idlClass].pkey;
1308 const specifiedColumnOrder = this.autoGeneratedColumnOrder ?
1309 this.autoGeneratedColumnOrder.split(/,/) : [];
1311 // generate columns for all non-virtual fields on the IDL class
1312 const fields = this.idl.classes[this.columnSet.idlClass].fields
1313 .filter(field => !field.virtual);
1315 const sortedFields = this.autoGeneratedColumnOrder ?
1316 this.idl.sortIdlFields(fields, this.autoGeneratedColumnOrder.split(/,/)) :
1319 sortedFields.forEach(field => {
1320 if (!this.ignoredFields.filter(ignored => ignored === field.name).length) {
1321 const col = new GridColumn();
1322 col.name = field.name;
1323 col.label = field.label || field.name;
1324 col.idlFieldDef = field;
1325 col.idlClass = this.columnSet.idlClass;
1326 col.datatype = field.datatype;
1327 col.isIndex = (field.name === pkeyField);
1330 if (this.showDeclaredFieldsOnly) {
1334 this.columnSet.add(col);
1339 saveGridConfig(): Promise<any> {
1340 if (!this.persistKey) {
1341 throw new Error('Grid persistKey required to save columns');
1343 const conf = new GridPersistConf();
1345 conf.limit = this.pager.limit;
1346 conf.columns = this.columnSet.compileSaveObject();
1348 // Avoid persisting group visibility since that may change
1349 // with the addition of new columns. Always calculate that
1351 conf.hideToolbarActions = this.toolbarActions
1352 .filter(action => !action.isGroup && action.hidden)
1353 .map(action => action.label);
1355 return this.store.setItem('eg.grid.' + this.persistKey, conf);
1358 // TODO: saveGridConfigAsOrgSetting(...)
1360 getGridConfig(persistKey: string): Promise<GridPersistConf> {
1361 if (!persistKey) { return Promise.resolve(null); }
1362 return this.store.getItem('eg.grid.' + persistKey);
1365 columnHasTextGenerator(col: GridColumn): boolean {
1366 return this.cellTextGenerator && col.name in this.cellTextGenerator;
1371 // Actions apply to specific rows
1372 export class GridToolbarAction {
1374 onClick: EventEmitter<any []>;
1375 action: (rows: any[]) => any; // DEPRECATED
1378 isGroup: boolean; // used for group placeholder entries
1379 isSeparator: boolean;
1380 disableOnRows: (rows: any[]) => boolean;
1384 // Buttons are global actions
1385 export class GridToolbarButton {
1387 onClick: EventEmitter<any []>;
1388 action: () => any; // DEPRECATED
1393 export class GridToolbarCheckbox {
1396 onChange: EventEmitter<boolean>;
1399 export interface GridColumnSort {
1404 export class GridDataSource {
1407 sort: GridColumnSort[];
1409 allRowsRetrieved: boolean;
1410 requestingData: boolean;
1411 retrievalError: boolean;
1412 getRows: (pager: Pager, sort: GridColumnSort[]) => Observable<any>;
1422 this.allRowsRetrieved = false;
1425 // called from the template -- no data fetching
1426 getPageOfRows(pager: Pager): any[] {
1428 return this.data.slice(
1429 pager.offset, pager.limit + pager.offset
1430 ).filter(row => row !== undefined);
1435 // called on initial component load and user action (e.g. paging, sorting).
1436 requestPage(pager: Pager): Promise<any> {
1439 this.getPageOfRows(pager).length === pager.limit
1440 // already have all data
1441 || this.allRowsRetrieved
1442 // have no way to get more data.
1445 return Promise.resolve();
1448 // If we have to call out for data, set inFetch
1449 this.requestingData = true;
1450 this.retrievalError = false;
1452 return new Promise((resolve, reject) => {
1453 let idx = pager.offset;
1454 return this.getRows(pager, this.sort).subscribe(
1456 this.data[idx++] = row;
1457 // not updating this.requestingData, as having
1458 // retrieved one row doesn't mean we're done
1459 this.retrievalError = false;
1462 console.error(`grid getRows() error ${err}`);
1463 this.requestingData = false;
1464 this.retrievalError = true;
1468 this.checkAllRetrieved(pager, idx);
1469 this.requestingData = false;
1470 this.retrievalError = false;
1477 // See if the last getRows() call resulted in the final set of data.
1478 checkAllRetrieved(pager: Pager, idx: number) {
1479 if (this.allRowsRetrieved) { return; }
1481 if (idx === 0 || idx < (pager.limit + pager.offset)) {
1482 // last query returned nothing or less than one page.
1483 // confirm we have all of the preceding pages.
1484 if (!this.data.includes(undefined)) {
1485 this.allRowsRetrieved = true;
1486 pager.resultCount = this.data.length;