Web Components クリップボードでの作業

このトピックでは、クリップボードの操作を実行する方法を説明します。

Web Components クリップボードでの作業の例

EXAMPLE

DATA

TS

HTML

CSS

import { saveAs } from "file-saver";
import { Workbook } from 'igniteui-webcomponents-excel';
import { WorkbookFormat } from 'igniteui-webcomponents-excel';
import { WorkbookSaveOptions } from 'igniteui-webcomponents-excel';
import { WorkbookLoadOptions } from 'igniteui-webcomponents-excel';
import { IgcExcelXlsxModule } from 'igniteui-webcomponents-excel';
import { IgcExcelCoreModule } from 'igniteui-webcomponents-excel';
import { IgcExcelModule } from 'igniteui-webcomponents-excel';

IgcExcelCoreModule.register();
IgcExcelModule.register();
IgcExcelXlsxModule.register();

export class ExcelUtility {

    public static getExtension(format: WorkbookFormat) {
        switch (format) {
            case WorkbookFormat.StrictOpenXml:
            case WorkbookFormat.Excel2007:
                return ".xlsx";
            case WorkbookFormat.Excel2007MacroEnabled:
                return ".xlsm";
            case WorkbookFormat.Excel2007MacroEnabledTemplate:
                return ".xltm";
            case WorkbookFormat.Excel2007Template:
                return ".xltx";
            case WorkbookFormat.Excel97To2003:
                return ".xls";
            case WorkbookFormat.Excel97To2003Template:
                return ".xlt";
        }
    }

    public static load(file: File): Promise<Workbook> {
        return new Promise<Workbook>((resolve, reject) => {
            ExcelUtility.readFileAsUint8Array(file).then((a) => {
                Workbook.load(a, new WorkbookLoadOptions(), (w) => {
                    resolve(w);
                }, (e) => {
                    reject(e);
                });
            }, (e) => {
                reject(e);
            });
        });
    }

    public static loadFromUrl(url: string): Promise<Workbook> {
        return new Promise<Workbook>((resolve, reject) => {
            const req = new XMLHttpRequest();
            req.open("GET", url, true);
            req.responseType = "arraybuffer";
            req.onload = (d) => {
                const data = new Uint8Array(req.response);
                Workbook.load(data, new WorkbookLoadOptions(), (w) => {
                    resolve(w);
                }, (e) => {
                    reject(e);
                });
            };
            req.send();
        });
    }

    public static save(workbook: Workbook, fileNameWithoutExtension: string): Promise<string> {
        return new Promise<string>((resolve, reject) => {
            const opt = new WorkbookSaveOptions();
            opt.type = "blob";

            workbook.save(opt, (d) => {
                const fileExt = ExcelUtility.getExtension(workbook.currentFormat);
                const fileName = fileNameWithoutExtension + fileExt;
                saveAs(d as Blob, fileName);
                resolve(fileName);
            }, (e) => {
                reject(e);
            });
        });
    }

    private static readFileAsUint8Array(file: File): Promise<Uint8Array> {
        return new Promise<Uint8Array>((resolve, reject) => {
            const fr = new FileReader();
            fr.onerror = (e) => {
                reject(fr.error);
            };

            if (fr.readAsBinaryString) {
                fr.onload = (e) => {
                    const rs = (fr as any).resultString;
                    const str: string = rs != null ? rs : fr.result;
                    const result = new Uint8Array(str.length);
                    for (let i = 0; i < str.length; i++) {
                        result[i] = str.charCodeAt(i);
                    }
                    resolve(result);
                };
                fr.readAsBinaryString(file);
            } else {
                fr.onload = (e) => {
                    resolve(new Uint8Array(fr.result as ArrayBuffer));
                };
                fr.readAsArrayBuffer(file);
            }
        });
    }
}
tsコピー

import { IgcSpreadsheetModule } from 'igniteui-webcomponents-spreadsheet';
import { IgcSpreadsheetComponent } from 'igniteui-webcomponents-spreadsheet';
import { ModuleManager } from 'igniteui-webcomponents-core';
import { SpreadsheetAction } from 'igniteui-webcomponents-spreadsheet';
import { ExcelUtility } from './ExcelUtility';

ModuleManager.register(IgcSpreadsheetModule);

export class SpreadsheetClipboard {

    private spreadsheet: IgcSpreadsheetComponent;

    constructor() {

        this.onCutBtnClick = this.onCutBtnClick.bind(this)
        this.onCopyBtnClick = this.onCopyBtnClick.bind(this)
        this.onPasteBtnClick = this.onPasteBtnClick.bind(this)

        this.spreadsheet = document.getElementById('spreadsheet') as IgcSpreadsheetComponent;

        let path = 'https://static.infragistics.com/xplatform/excel/SalesData.xlsx';
        ExcelUtility.loadFromUrl(path).then((w) => {
            this.spreadsheet.workbook = w;
        });

        document.getElementById('cutBtn')!.addEventListener('click', this.onCutBtnClick);
        document.getElementById('copyBtn')!.addEventListener('click', this.onCopyBtnClick);
        document.getElementById('pasteBtn')!.addEventListener('click', this.onPasteBtnClick);
    }

    onCutBtnClick() {
        this.spreadsheet.executeAction(SpreadsheetAction.Cut);
    }

    onCopyBtnClick() {
        this.spreadsheet.executeAction(SpreadsheetAction.Copy);
    }

    onPasteBtnClick() {
        this.spreadsheet.executeAction(SpreadsheetAction.Paste);
    }
}

new SpreadsheetClipboard();
tsコピー

<!DOCTYPE html>
<html>
  <head>
    <title>SpreadsheetClipboard</title>
    <meta charset="UTF-8" />

    <link rel="shortcut icon" href="https://static.infragistics.com/xplatform/images/browsers/wc.png" >
    <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons" />
    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Kanit&display=swap" />
    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Titillium Web" />
    <link rel="stylesheet" href="https://static.infragistics.com/xplatform/css/samples/shared.v8.css" type="text/css" />

  </head>

  <body>
    <div id="root">

<div class="container sample">
    <div class="options horizontal">
        <input type="button" class="options-label" id="cutBtn" value="Cut" />
        <input type="button" class="options-label" id="copyBtn" value="Copy" />
        <input type="button" class="options-label" id="pasteBtn" value="Paste" />
    </div>
    <igc-spreadsheet id="spreadsheet" width="100%" height="calc(100% - 2.5rem)">

    </igc-spreadsheet>

</div>

    </div>
    <!-- This script is needed only for parcel and it will be excluded for webpack -->
    <% if (false) { %><script src="src/index.ts"></script><% } %>

  </body>
</html>htmlコピー

/* shared styles are loaded from: */
/* https://static.infragistics.com/xplatform/css/samples */cssコピー

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依存関係

クリップボードを利用する前に、SpreadsheetAction 列挙型をインポートします。

import { IgcSpreadsheetComponent } from 'igniteui-webcomponents-spreadsheet';
import { SpreadsheetAction } from 'igniteui-webcomponents-spreadsheet';
ts

使用方法

次のコード スニペットは、Web Components IgcSpreadsheetComponent コントロールでクリップボードに関連するコマンドを実行する方法を示しています。

public cut(): void {
    this.spreadsheet.executeAction(SpreadsheetAction.Cut);
}

public copy(): void {
    this.spreadsheet.executeAction(SpreadsheetAction.Copy);
}

public paste(): void {
    this.spreadsheet.executeAction(SpreadsheetAction.Paste);
}
ts

API リファレンス

• SpreadsheetAction
• IgcSpreadsheetComponent