ngx-gem-spaas
Version:
This library contains services, components, images and styles to provide a unified look and way-of-working throughout GEM SPaaS.
160 lines • 20.1 kB
JavaScript
import { Directive, EventEmitter, HostListener, Input, Output } from '@angular/core';
import { Subject } from 'rxjs';
import * as i0 from "@angular/core";
export class TableSelectionRowDirective {
constructor() {
this.rowSelectionMatrix = [];
this.multiSelect = false;
this.selectionChanged = new EventEmitter(); // will emit last selected row index
this.isSelecting = false;
this.selectionId = 1;
// set the from/to variables to public because it's very handy to be able to access these directly in the template
this.fromRow = 0;
this.toRow = 0;
this.onDestroy = new Subject();
}
mouseDown(e) {
const mouseData = this.checkMouseData(e);
if (mouseData.valid) {
this.onClickCell(e, mouseData.rowIdx);
}
}
mouseMove(e) {
const mouseData = this.checkMouseData(e);
if (this.isSelecting && mouseData.valid && mouseData.rowIdx !== this.toRow) {
this.onSelecting(mouseData.rowIdx);
}
}
mouseUp() {
this.onStopSelect('mouseup');
}
mouseLeave() {
this.onStopSelect('mouseleave');
}
sort() {
this.resetSelectionRange(true, true);
this.emitNewSelection();
}
ngOnDestroy() {
this.onDestroy.next();
this.onDestroy.complete();
}
checkMouseData(e) {
const target = (e.target);
let dataset = target?.dataset;
if (!dataset?.rowIdx) {
// also check the offsetParent, for cells with sub-divs
dataset = (target?.offsetParent).dataset;
}
let rowIdx = -1;
if (dataset?.rowIdx) {
rowIdx = Number.isNaN((Number(dataset.rowIdx))) ? -1 : Number(dataset.rowIdx);
}
return {
valid: rowIdx > -1,
rowIdx: rowIdx,
};
}
onClickCell(e, rowIdx) {
if (!e) {
return;
}
this.isSelecting = true;
if (!e.shiftKey && !e.ctrlKey) {
// normal click: update all selection variables
++this.selectionId;
this.fromRow = rowIdx;
this.toRow = rowIdx;
this.resetSelectionRange(true);
}
else if (e.shiftKey && this.multiSelect) {
// shift click: set last variables for range selection
document.getSelection()?.removeAllRanges();
this.toRow = rowIdx;
this.updateSelectionRange();
}
else if (e.ctrlKey && this.multiSelect) {
// ctrl key: just set for row itself
++this.selectionId;
this.rowSelectionMatrix[rowIdx] = !this.rowSelectionMatrix[rowIdx] ? this.selectionId : 0;
if (this.rowSelectionMatrix[rowIdx]) {
this.fromRow = rowIdx;
this.toRow = rowIdx;
}
else {
// it's a deselection: search for last selected row to put focus on
for (let row = 0; row < this.rowSelectionMatrix.length; row++) {
if (this.rowSelectionMatrix[row]) {
this.toRow = row;
}
}
}
}
}
onSelecting(rowIdx) {
if (this.isSelecting && this.multiSelect) {
document.getSelection()?.removeAllRanges();
this.toRow = rowIdx;
this.resetSelectionRange();
this.updateSelectionRange();
}
}
onStopSelect(fromMouseEvent) {
if (this.isSelecting) {
this.isSelecting = false;
if (fromMouseEvent === 'mouseup') {
this.emitNewSelection();
}
}
}
emitNewSelection() {
this.selectionChanged.emit(this.rowSelectionMatrix[this.toRow] > 0 ? this.toRow : -1);
}
resetSelectionRange(fullReset = false, fromSort = false) {
const wasSelected = this.rowSelectionMatrix[this.toRow] > 0;
for (let rowIdx = 0; rowIdx < this.rowSelectionMatrix.length; rowIdx++) {
if (fullReset || this.rowSelectionMatrix[rowIdx] === this.selectionId) {
this.rowSelectionMatrix[rowIdx] = 0;
}
}
this.rowSelectionMatrix[this.toRow] = fromSort || wasSelected ? 0 : this.selectionId;
}
updateSelectionRange() {
const fromRow = Math.min(this.fromRow, this.toRow);
const toRow = Math.max(this.fromRow, this.toRow);
for (let rowIdx = fromRow; rowIdx <= toRow; rowIdx++) {
this.rowSelectionMatrix[rowIdx] = this.selectionId;
}
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.3.12", ngImport: i0, type: TableSelectionRowDirective, deps: [], target: i0.ɵɵFactoryTarget.Directive }); }
static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "17.3.12", type: TableSelectionRowDirective, selector: "[spaasTableSelectionRow]", inputs: { rowSelectionMatrix: "rowSelectionMatrix", multiSelect: "multiSelect" }, outputs: { selectionChanged: "selectionChanged" }, host: { listeners: { "mousedown": "mouseDown($event)", "mousemove": "mouseMove($event)", "mouseup": "mouseUp($event)", "mouseleave": "mouseLeave($event)", "tableSortedOrFiltered": "sort($event)" } }, exportAs: ["spaasTableSelectionRow"], ngImport: i0 }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.3.12", ngImport: i0, type: TableSelectionRowDirective, decorators: [{
type: Directive,
args: [{
selector: '[spaasTableSelectionRow]',
exportAs: 'spaasTableSelectionRow'
}]
}], propDecorators: { rowSelectionMatrix: [{
type: Input
}], multiSelect: [{
type: Input
}], selectionChanged: [{
type: Output
}], mouseDown: [{
type: HostListener,
args: ['mousedown', ['$event']]
}], mouseMove: [{
type: HostListener,
args: ['mousemove', ['$event']]
}], mouseUp: [{
type: HostListener,
args: ['mouseup', ['$event']]
}], mouseLeave: [{
type: HostListener,
args: ['mouseleave', ['$event']]
}], sort: [{
type: HostListener,
args: ['tableSortedOrFiltered', ['$event']]
}] } });
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{Directive, EventEmitter, HostListener, Input, OnDestroy, Output} from '@angular/core';\r\nimport {Subject} from 'rxjs';\r\n\r\n@Directive({\r\n  selector: '[spaasTableSelectionRow]',\r\n  exportAs: 'spaasTableSelectionRow'\r\n})\r\nexport class TableSelectionRowDirective implements OnDestroy {\r\n\r\n  @Input() rowSelectionMatrix: number[] = [];\r\n  @Input() multiSelect: boolean = false;\r\n  @Output() selectionChanged = new EventEmitter<number>(); // will emit last selected row index\r\n\r\n  isSelecting = false;\r\n  private selectionId = 1;\r\n\r\n  // set the from/to variables to public because it's very handy to be able to access these directly in the template\r\n  fromRow = 0;\r\n  toRow: number = 0;\r\n\r\n  private onDestroy = new Subject<void>();\r\n\r\n  @HostListener('mousedown', ['$event'])\r\n  mouseDown(e: MouseEvent) {\r\n    const mouseData = this.checkMouseData(e);\r\n    if (mouseData.valid) {\r\n      this.onClickCell(e, mouseData.rowIdx);\r\n    }\r\n  }\r\n\r\n  @HostListener('mousemove', ['$event'])\r\n  mouseMove(e: MouseEvent) {\r\n    const mouseData = this.checkMouseData(e);\r\n    if (this.isSelecting && mouseData.valid && mouseData.rowIdx !== this.toRow) {\r\n      this.onSelecting(mouseData.rowIdx);\r\n    }\r\n  }\r\n\r\n  @HostListener('mouseup', ['$event'])\r\n  mouseUp() {\r\n    this.onStopSelect('mouseup');\r\n  }\r\n\r\n  @HostListener('mouseleave', ['$event'])\r\n  mouseLeave() {\r\n    this.onStopSelect('mouseleave');\r\n  }\r\n\r\n  @HostListener('tableSortedOrFiltered', ['$event'])\r\n  sort() {\r\n    this.resetSelectionRange(true, true);\r\n    this.emitNewSelection();\r\n  }\r\n\r\n  ngOnDestroy() {\r\n    this.onDestroy.next();\r\n    this.onDestroy.complete();\r\n  }\r\n\r\n  private checkMouseData(e: MouseEvent): { valid: boolean, rowIdx: number } {\r\n    const target = (e.target) as HTMLElement;\r\n    let dataset: any = target?.dataset;\r\n    if (!dataset?.rowIdx) {\r\n      // also check the offsetParent, for cells with sub-divs\r\n      dataset = ((target?.offsetParent) as HTMLElement).dataset;\r\n    }\r\n    let rowIdx = -1;\r\n    if (dataset?.rowIdx) {\r\n      rowIdx = Number.isNaN((Number(dataset.rowIdx))) ? -1 : Number(dataset.rowIdx);\r\n    }\r\n    return {\r\n      valid: rowIdx > -1,\r\n      rowIdx: rowIdx,\r\n    };\r\n  }\r\n\r\n  private onClickCell(e: MouseEvent, rowIdx: number): void {\r\n    if (!e) {\r\n      return;\r\n    }\r\n    this.isSelecting = true;\r\n    if (!e.shiftKey && !e.ctrlKey) {\r\n      // normal click: update all selection variables\r\n      ++this.selectionId;\r\n      this.fromRow = rowIdx;\r\n      this.toRow = rowIdx;\r\n      this.resetSelectionRange(true);\r\n    } else if (e.shiftKey && this.multiSelect) {\r\n      // shift click: set last variables for range selection\r\n      document.getSelection()?.removeAllRanges();\r\n      this.toRow = rowIdx;\r\n      this.updateSelectionRange();\r\n    } else if (e.ctrlKey && this.multiSelect) {\r\n      // ctrl key: just set for row itself\r\n      ++this.selectionId;\r\n      this.rowSelectionMatrix[rowIdx] = !this.rowSelectionMatrix[rowIdx] ? this.selectionId : 0;\r\n      if (this.rowSelectionMatrix[rowIdx]) {\r\n        this.fromRow = rowIdx;\r\n        this.toRow = rowIdx;\r\n      } else {\r\n        // it's a deselection: search for last selected row to put focus on\r\n        for (let row = 0; row < this.rowSelectionMatrix.length; row++) {\r\n          if (this.rowSelectionMatrix[row]) {\r\n            this.toRow = row;\r\n          }\r\n        }\r\n      }\r\n    }\r\n  }\r\n\r\n  private onSelecting(rowIdx: number): void {\r\n    if (this.isSelecting && this.multiSelect) {\r\n      document.getSelection()?.removeAllRanges();\r\n      this.toRow = rowIdx;\r\n      this.resetSelectionRange();\r\n      this.updateSelectionRange();\r\n    }\r\n  }\r\n\r\n  private onStopSelect(fromMouseEvent: 'mouseup' | 'mouseleave'): void {\r\n    if (this.isSelecting) {\r\n      this.isSelecting = false;\r\n      if (fromMouseEvent === 'mouseup') {\r\n        this.emitNewSelection();\r\n      }\r\n    }\r\n  }\r\n\r\n  private emitNewSelection(): void {\r\n    this.selectionChanged.emit(this.rowSelectionMatrix[this.toRow] > 0 ? this.toRow : -1);\r\n  }\r\n\r\n  private resetSelectionRange(fullReset = false, fromSort = false): void {\r\n    const wasSelected = this.rowSelectionMatrix[this.toRow] > 0;\r\n    for (let rowIdx = 0; rowIdx < this.rowSelectionMatrix.length; rowIdx++) {\r\n      if (fullReset || this.rowSelectionMatrix[rowIdx] === this.selectionId) {\r\n        this.rowSelectionMatrix[rowIdx] = 0;\r\n      }\r\n    }\r\n    this.rowSelectionMatrix[this.toRow] = fromSort || wasSelected ? 0 : this.selectionId;\r\n  }\r\n\r\n  private updateSelectionRange(): void {\r\n    const fromRow = Math.min(this.fromRow, this.toRow);\r\n    const toRow = Math.max(this.fromRow, this.toRow);\r\n    for (let rowIdx = fromRow; rowIdx <= toRow; rowIdx++) {\r\n      this.rowSelectionMatrix[rowIdx] = this.selectionId;\r\n    }\r\n  }\r\n\r\n}\r\n"]}