@clr/angular
Version:
Angular components for Clarity
108 lines • 16.9 kB
JavaScript
/*
* Copyright (c) 2016-2025 Broadcom. All Rights Reserved.
* The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
* This software is released under MIT license.
* The full license information can be found in LICENSE in the root directory of this project.
*/
import { Keys } from '../../../utils/enums/keys.enum';
import { DefaultKeyNavigationStrategy } from './key-navigation-strategies/default';
import { ExpandedColumnsRowKeyNavigationStrategy } from './key-navigation-strategies/expanded-columns-row';
import { ExpandedRowKeyNavigationStrategy } from './key-navigation-strategies/expanded-row';
export class KeyNavigationUtils {
constructor(host, config) {
this.host = host;
this.config = config;
}
get grid() {
return this.host?.querySelector(this.config.keyGrid);
}
get rows() {
return this.host?.querySelectorAll(this.config.keyGridRows);
}
get cells() {
return this.host?.querySelectorAll(this.config.keyGridCells);
}
get currentCellCoordinates() {
const currentCell = this.cells ? Array.from(this.cells).find(i => i.getAttribute('tabindex') === '0') : null;
const currentRow = currentCell ? currentCell.closest(this.config.keyGridRows) : null;
const coordinates = {
x: currentRow && currentCell
? Array.from(currentRow.querySelectorAll(this.config.keyGridCells)).indexOf(currentCell)
: 0,
y: currentRow && currentCell && this.rows ? Array.from(this.rows).indexOf(currentRow) : 0,
};
return coordinates;
}
get itemsPerPage() {
return Math.floor(this.host?.querySelector('.datagrid').clientHeight / this.rows[0].clientHeight) - 1 || 0;
}
getNextItemCoordinate(e) {
const currentCellCoords = this.currentCellCoordinates;
const strategy = this.getNavStrategy(currentCellCoords);
const inlineStart = this.host.dir === 'rtl' ? Keys.ArrowRight : Keys.ArrowLeft;
const inlineEnd = this.host.dir === 'rtl' ? Keys.ArrowLeft : Keys.ArrowRight;
switch (e.key) {
case Keys.ArrowUp:
return strategy.keyUp(currentCellCoords);
case Keys.ArrowDown:
return strategy.keyDown(currentCellCoords);
case inlineStart:
return strategy.keyLeft(currentCellCoords);
case inlineEnd:
return strategy.keyRight(currentCellCoords);
case Keys.Home:
return strategy.keyHome(currentCellCoords, e.ctrlKey);
case Keys.End:
return strategy.keyEnd(currentCellCoords, e.ctrlKey);
case Keys.PageUp:
return strategy.keyPageUp(currentCellCoords);
case Keys.PageDown:
return strategy.keyPageDown(currentCellCoords);
default:
return currentCellCoords;
}
}
getCellsForRow(index) {
return this.rows[index].querySelectorAll(this.config.keyGridCells);
}
isExpandedRow(index) {
const selectedElement = this.rows[index].querySelector('.datagrid-row-detail');
return selectedElement ? selectedElement.style.display !== 'none' : false;
}
isDetailsRow(index) {
return this.rows[index].classList.contains('datagrid-row-detail');
}
isRowReplaced(index) {
return !!this.rows[index].closest('clr-dg-row.datagrid-row-replaced');
}
isSingleCellExpandedRow(index) {
return this.rows[index]?.querySelectorAll(this.config.keyGridCells).length === 1;
}
actionCellCount(index) {
return this.actionCellsAsArray(index).length;
}
actionCellsAsArray(index) {
return Array.from(this.rows[index].querySelectorAll('.datagrid-row-sticky .datagrid-cell, .datagrid-row-sticky .datagrid-column'));
}
isActionCell(cellCoords) {
return !!this.actionCellsAsArray(cellCoords.y)[cellCoords.x];
}
createNextCellCoords(cellCoords) {
return {
x: cellCoords.x,
y: cellCoords.y,
};
}
getNavStrategy(currentCellCoords) {
switch (true) {
case this.isSingleCellExpandedRow(currentCellCoords.y):
return new ExpandedRowKeyNavigationStrategy(this);
case this.isDetailsRow(currentCellCoords.y):
case this.isExpandedRow(currentCellCoords.y):
return new ExpandedColumnsRowKeyNavigationStrategy(this);
default:
return new DefaultKeyNavigationStrategy(this);
}
}
}
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All Rights Reserved.\n * The term \"Broadcom\" refers to Broadcom Inc. and/or its subsidiaries.\n * This software is released under MIT license.\n * The full license information can be found in LICENSE in the root directory of this project.\n */\n\nimport { Keys } from '../../../utils/enums/keys.enum';\nimport { KeyNavigationGridStrategyInterface } from '../interfaces/key-nav-grid-strategy.interface';\nimport { CellCoordinates, KeyNavigationGridConfig } from './key-navigation-grid.controller';\nimport { DefaultKeyNavigationStrategy } from './key-navigation-strategies/default';\nimport { ExpandedColumnsRowKeyNavigationStrategy } from './key-navigation-strategies/expanded-columns-row';\nimport { ExpandedRowKeyNavigationStrategy } from './key-navigation-strategies/expanded-row';\n\nexport class KeyNavigationUtils {\n  constructor(public host: HTMLElement, public config: KeyNavigationGridConfig) {}\n\n  get grid() {\n    return this.host?.querySelector(this.config.keyGrid);\n  }\n\n  get rows() {\n    return this.host?.querySelectorAll(this.config.keyGridRows) as NodeListOf<HTMLElement>;\n  }\n\n  get cells() {\n    return this.host?.querySelectorAll(this.config.keyGridCells) as NodeListOf<HTMLElement>;\n  }\n\n  get currentCellCoordinates() {\n    const currentCell = this.cells ? Array.from(this.cells).find(i => i.getAttribute('tabindex') === '0') : null;\n    const currentRow: HTMLElement = currentCell ? currentCell.closest(this.config.keyGridRows) : null;\n\n    const coordinates: CellCoordinates = {\n      x:\n        currentRow && currentCell\n          ? Array.from(currentRow.querySelectorAll(this.config.keyGridCells)).indexOf(currentCell)\n          : 0,\n      y: currentRow && currentCell && this.rows ? Array.from(this.rows).indexOf(currentRow) : 0,\n    };\n\n    return coordinates;\n  }\n\n  get itemsPerPage() {\n    return Math.floor(this.host?.querySelector('.datagrid').clientHeight / this.rows[0].clientHeight) - 1 || 0;\n  }\n\n  getNextItemCoordinate(e: KeyboardEvent) {\n    const currentCellCoords = this.currentCellCoordinates;\n    const strategy = this.getNavStrategy(currentCellCoords);\n\n    const inlineStart = this.host.dir === 'rtl' ? Keys.ArrowRight : Keys.ArrowLeft;\n    const inlineEnd = this.host.dir === 'rtl' ? Keys.ArrowLeft : Keys.ArrowRight;\n\n    switch (e.key) {\n      case Keys.ArrowUp:\n        return strategy.keyUp(currentCellCoords);\n      case Keys.ArrowDown:\n        return strategy.keyDown(currentCellCoords);\n      case inlineStart:\n        return strategy.keyLeft(currentCellCoords);\n      case inlineEnd:\n        return strategy.keyRight(currentCellCoords);\n      case Keys.Home:\n        return strategy.keyHome(currentCellCoords, e.ctrlKey);\n      case Keys.End:\n        return strategy.keyEnd(currentCellCoords, e.ctrlKey);\n      case Keys.PageUp:\n        return strategy.keyPageUp(currentCellCoords);\n      case Keys.PageDown:\n        return strategy.keyPageDown(currentCellCoords);\n      default:\n        return currentCellCoords;\n    }\n  }\n\n  getCellsForRow(index: number) {\n    return this.rows[index].querySelectorAll(this.config.keyGridCells);\n  }\n\n  isExpandedRow(index: number) {\n    const selectedElement: HTMLElement = this.rows[index].querySelector('.datagrid-row-detail');\n\n    return selectedElement ? selectedElement.style.display !== 'none' : false;\n  }\n\n  isDetailsRow(index: number) {\n    return this.rows[index].classList.contains('datagrid-row-detail');\n  }\n\n  isRowReplaced(index: number) {\n    return !!this.rows[index].closest('clr-dg-row.datagrid-row-replaced');\n  }\n\n  isSingleCellExpandedRow(index: number) {\n    return this.rows[index]?.querySelectorAll(this.config.keyGridCells).length === 1;\n  }\n\n  actionCellCount(index: number) {\n    return this.actionCellsAsArray(index).length;\n  }\n\n  actionCellsAsArray(index: number) {\n    return Array.from(\n      this.rows[index].querySelectorAll('.datagrid-row-sticky .datagrid-cell, .datagrid-row-sticky .datagrid-column')\n    );\n  }\n\n  isActionCell(cellCoords: CellCoordinates) {\n    return !!this.actionCellsAsArray(cellCoords.y)[cellCoords.x];\n  }\n\n  createNextCellCoords(cellCoords: CellCoordinates): CellCoordinates {\n    return {\n      x: cellCoords.x,\n      y: cellCoords.y,\n    };\n  }\n\n  private getNavStrategy(currentCellCoords: CellCoordinates): KeyNavigationGridStrategyInterface {\n    switch (true) {\n      case this.isSingleCellExpandedRow(currentCellCoords.y):\n        return new ExpandedRowKeyNavigationStrategy(this);\n      case this.isDetailsRow(currentCellCoords.y):\n      case this.isExpandedRow(currentCellCoords.y):\n        return new ExpandedColumnsRowKeyNavigationStrategy(this);\n      default:\n        return new DefaultKeyNavigationStrategy(this);\n    }\n  }\n}\n"]}