#1949: Implement spreadsheet document viewer

geonode_mapstore_client/client/js/components/MediaViewer/Media.jsx

@@ -9,6 +9,7 @@
 import React, { Suspense, lazy }  from 'react';
 import MediaComponent from '@mapstore/framework/components/geostory/media';
 import PdfViewer from '@js/components/MediaViewer/PdfViewer';
+import SpreadsheetViewer from '@js/components/MediaViewer/SpreadsheetViewer';
 import { determineResourceType } from '@js/utils/FileUtils';
 import Loader from '@mapstore/framework/components/misc/Loader';
 import MainEventView from '@js/components/MainEventView';
@@ -30,6 +31,7 @@ const mediaMap = {
     gltf: Scene3DViewer,
     ifc: Scene3DViewer,
     audio: MediaComponent,
+    excel: SpreadsheetViewer,
     unsupported: UnsupportedViewer
 };
 
@@ -73,6 +75,8 @@ const Media = ({ resource, ...props }) => {
                 url={resource ? metadataPreviewUrl(resource) : ''}
                 isExternalSource={isDocumentExternalSource(resource)}
                 bboxPolygon={resource?.ll_bbox_polygon}
+                title={resource.title}
+                extension={resource.extension}
             />
         </Suspense>);
     }

geonode_mapstore_client/client/js/components/MediaViewer/SpreadsheetViewer.jsx

@@ -0,0 +1,100 @@
+/*
+ * Copyright 2025, GeoSolutions Sas.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+import React, { useEffect, useState, Suspense, lazy } from "react";
+
+import Loader from "@mapstore/framework/components/misc/Loader";
+import Message from "@mapstore/framework/components/I18N/Message";
+
+import MetadataPreview from "@js/components/MetadataPreview/MetadataPreview";
+import { parseCSVToArray } from "@js/utils/FileUtils";
+const AdaptiveGrid = lazy(() => import("@mapstore/framework/components/misc/AdaptiveGrid"));
+
+const VirtualizedGrid = ({data}) => {
+    let [columns, ...rows] = data ?? [];
+    columns = columns?.map((column, index) => ({ key: index, name: column, resizable: true })) ?? [];
+    const rowGetter = rowNumber => rows?.[rowNumber];
+    return (
+        <div className="grid-container">
+            <Suspense fallback={null}>
+                <AdaptiveGrid
+                    columns={columns}
+                    rowGetter={rowGetter}
+                    rowsCount={rows?.length ?? 0}
+                    emptyRowsView={() => <span className="empty-data"><Message msgId="gnviewer.noGridData"/></span>}
+                    minColumnWidth={100}
+                />
+            </Suspense>
+        </div>
+    );
+};
+
+export const SpreadsheetViewer = ({extension, title, description, src, url}) => {
+    const [data, setData] = useState([]);
+    const [loading, setLoading] = useState(false);
+    const [error, setError] = useState(null);
+
+    useEffect(() => {
+        if (src) {
+            setLoading(true);
+            fetch(src)
+                .then(response => extension === "csv"
+                    ? response.text()
+                    : response.arrayBuffer()
+                )
+                .then((res) => {
+                    let response = res;
+                    if (extension !== "csv") {
+                        import('xlsx').then(({ read, utils }) => {
+                            const workbook = read(response, { type: "array" });
+
+                            // Convert first sheet to CSV
+                            const sheetName = workbook.SheetNames[0];
+                            const worksheet = workbook.Sheets[sheetName];
+                            response = utils.sheet_to_csv(worksheet);
+                            setData(parseCSVToArray(response));
+                        }).catch((e) => {
+                            console.error("Failed to load xlsx module", e);
+                        });
+                    } else {
+                        setData(parseCSVToArray(response));
+                    }
+                }).catch(() => {
+                    setError(true);
+                }).finally(()=> {
+                    setLoading(false);
+                });
+        }
+    }, [src]);
+
+    if (loading) {
+        return (
+            <div className="csv-loader">
+                <Loader size={70}/>
+            </div>
+        );
+    }
+
+    if (error) {
+        return (
+            <MetadataPreview url={url}/>
+        );
+    }
+
+    return data?.length > 0 ? (
+        <div className="gn-csv-viewer">
+            <div className="csv-container">
+                <span className="title">{title}</span>
+                <span className="description">{description}</span>
+                <VirtualizedGrid data={data}/>
+            </div>
+        </div>
+    ) : null;
+};
+
+export default SpreadsheetViewer;

geonode_mapstore_client/client/js/utils/FileUtils.js

@@ -39,6 +39,7 @@ export const videoExtensions = ['mp4', 'mpg', 'avi', 'm4v', 'mp2', '3gp', 'flv',
 export const audioExtensions = ['mp3', 'wav', 'ogg'];
 export const gltfExtensions = ['glb', 'gltf'];
 export const ifcExtensions = ['ifc'];
+export const spreedsheetExtensions = ['csv', 'xls', 'xlsx'];
 
 /**
 * check if a resource extension is supported for display in the media viewer
@@ -53,6 +54,7 @@ export const determineResourceType = extension => {
     if (ifcExtensions.includes(extension)) return 'ifc';
     if (ifcExtensions.includes(extension)) return 'ifc';
     if (audioExtensions.includes(extension)) return 'video';
+    if (spreedsheetExtensions.includes(extension)) return 'excel';
     return 'unsupported';
 };
 
@@ -109,3 +111,25 @@ export const getFilenameFromContentDispositionHeader = (contentDisposition) => {
     }
     return '';
 };
+
+/**
+ * Identify the delimiter used in a CSV string
+ * Based on https://github.com/Inist-CNRS/node-csv-string
+ * @param {string} input
+ * @returns {string} delimiter
+ */
+export const detectCSVDelimiter = (input) => {
+    const separators = [',', ';', '|', '\t'];
+    const idx = separators
+        .map((separator) => input.indexOf(separator))
+        .reduce((prev, cur) =>
+            prev === -1 || (cur !== -1 && cur < prev) ? cur : prev
+        );
+    return input[idx] || ',';
+};
+
+export const parseCSVToArray = (response) => {
+    if (isEmpty(response)) return [];
+    const delimiter = detectCSVDelimiter(response);
+    return response?.split('\n')?.map(row => row?.split(delimiter)) ?? [];
+};

geonode_mapstore_client/client/js/utils/__tests__/FileUtils-test.js

@@ -1,9 +1,11 @@
 import expect from 'expect';
 import {
+    detectCSVDelimiter,
     determineResourceType,
     getFileNameAndExtensionFromUrl,
     getFileNameParts,
-    getFilenameFromContentDispositionHeader
+    getFilenameFromContentDispositionHeader,
+    parseCSVToArray
 } from '@js/utils/FileUtils';
 
 describe('FileUtils', () => {
@@ -31,6 +33,14 @@ describe('FileUtils', () => {
         const mediaType = determineResourceType('mp3');
         expect(mediaType).toEqual('video');
     });
+    it('should return excel if extension is a supported spreadsheet format', () => {
+        let mediaType = determineResourceType('csv');
+        expect(mediaType).toEqual('excel');
+        mediaType = determineResourceType('xls');
+        expect(mediaType).toEqual('excel');
+        mediaType = determineResourceType('xlsx');
+        expect(mediaType).toEqual('excel');
+    });
 
     it('should always return file extension in lowercase', () => {
         const file = {
@@ -72,5 +82,63 @@ describe('FileUtils', () => {
         expect(getFilenameFromContentDispositionHeader('attachment; filename*="filename.jpg"')).toBe('filename.jpg');
         expect(getFilenameFromContentDispositionHeader('attachment')).toBe('');
     });
+
+    describe('detectCSVDelimiter', () => {
+        it('should detect comma as delimiter', () => {
+            const input = 'a,b,c';
+            expect(detectCSVDelimiter(input)).toBe(',');
+        });
+
+        it('should detect semicolon as delimiter', () => {
+            const input = 'a;b;c';
+            expect(detectCSVDelimiter(input)).toBe(';');
+        });
+
+        it('should detect pipe as delimiter', () => {
+            const input = 'a|b|c';
+            expect(detectCSVDelimiter(input)).toBe('|');
+        });
+
+        it('should detect tab as delimiter', () => {
+            const input = 'a\tb\tc';
+            expect(detectCSVDelimiter(input)).toBe('\t');
+        });
+
+        it('should default to comma if no delimiter is found', () => {
+            const input = 'abc';
+            expect(detectCSVDelimiter(input)).toBe(',');
+        });
+    });
+
+    describe('parseCSVToArray', () => {
+        it('should parse CSV with comma delimiter', () => {
+            const input = 'a,b,c\n1,2,3';
+            const expectedOutput = [['a', 'b', 'c'], ['1', '2', '3']];
+            expect(parseCSVToArray(input)).toEqual(expectedOutput);
+        });
+
+        it('should parse CSV with semicolon delimiter', () => {
+            const input = 'a;b;c\n1;2;3';
+            const expectedOutput = [['a', 'b', 'c'], ['1', '2', '3']];
+            expect(parseCSVToArray(input)).toEqual(expectedOutput);
+        });
+
+        it('should parse CSV with pipe delimiter', () => {
+            const input = 'a|b|c\n1|2|3';
+            const expectedOutput = [['a', 'b', 'c'], ['1', '2', '3']];
+            expect(parseCSVToArray(input)).toEqual(expectedOutput);
+        });
+
+        it('should parse CSV with tab delimiter', () => {
+            const input = 'a\tb\tc\n1\t2\t3';
+            const expectedOutput = [['a', 'b', 'c'], ['1', '2', '3']];
+            expect(parseCSVToArray(input)).toEqual(expectedOutput);
+        });
+
+        it('should return empty array for empty input', () => {
+            const input = '';
+            expect(parseCSVToArray(input)).toEqual([]);
+        });
+    });
 });
 

geonode_mapstore_client/client/package.json

@@ -38,7 +38,8 @@
     "mapstore": "file:MapStore2",
     "react-helmet": "6.1.0",
     "react-intl": "2.3.0",
-    "react-router-dom": "4.1.1"
+    "react-router-dom": "4.1.1",
+    "xlsx": "0.18.5"
   },
   "mapstore": {
     "output": "dist",

geonode_mapstore_client/client/themes/geonode/less/_media-viewer.less

@@ -6,6 +6,12 @@
     .gn-media-scene-3d-info-bg {
         .background-color-var(@theme-vars[main-variant-bg]);
     }
+    .gn-csv-viewer {
+        .background-color-var(@theme-vars[main-variant-bg]);
+        .csv-container { 
+            .background-color-var(@theme-vars[main-bg]);
+        }
+    }
 }
 
 // **************
@@ -15,10 +21,9 @@
 .gn-media-viewer {
     top: 0;
     left: 0;
-    width: calc(100% - 2rem);
-    height: calc(100% - 2rem);
+    width: 100%;
+    height: 100%;
     position: absolute;
-    margin: 1rem;
 
     .ms-media {
         position: relative;
@@ -42,7 +47,11 @@
         height: auto;
     }
 
-    .pdf-loader {
+    .ms-media, .gn-pdf-viewer {
+        padding: 1rem;
+    }
+
+    .pdf-loader, .csv-loader {
         position: absolute;
         top: 0;
         left: 0;
@@ -57,18 +66,47 @@
     .gn-main-event-text{
         width: 50vw;
     }
-}
-.gn-media-viewer .pdf-loader {
-    position: 'absolute';
-    top: 0;
-    left: 0;
-    width: '100%';
-    height: '100%';
-    background-color: 'rgba(255, 255, 255, 0.8)';
-    z-index: 2;
-    display: 'flex';
-    align-items: 'center';
-    justify-content: 'center'
+    .gn-csv-viewer {
+        padding: 0 20em;
+        height: 100%;
+        .csv-container {
+            padding: 1.5em;
+            padding-bottom: 0;
+            display: flex;
+            flex-direction: column;
+            gap: 12px;
+            overflow-wrap: break-word;
+            height: 100%;
+            .title {
+                margin: 0;
+                font-weight: 500;
+                font-size: 1.5em;
+            }
+            .grid-container {
+                height: 100%;
+                min-height: 350px;
+                .empty-data {
+                    display: flex;
+                    justify-content: center;
+                    font-size: 1.2em;
+                }
+            }
+        }
+        // make the content of cell copyable
+        .react-grid-Cell {
+            -webkit-user-select: text;
+            -moz-user-select: text;
+            -ms-user-select: text;
+            user-select: text;
+        }
+        @media screen and (max-width: 768px) {
+            padding: 0;
+            overflow-y: auto;
+            .csv-container {
+                height: auto;
+            }
+        }
+    }
 }
 
 .gn-media-scene-3d {

geonode_mapstore_client/static/mapstore/gn-translations/data.de-DE.json

@@ -454,7 +454,8 @@
             "metadataNotFound": "Für die ausgewählte Ressource wurden keine Metadaten gefunden",
             "filterMetadata": "Nach Namen filtern...",
             "noMetadataFound": "Keine Metadaten gefunden...",
-            "metadataGroupTitle": "Allgemein"
+            "metadataGroupTitle": "Allgemein",
+            "noGridData": "Keine Daten zum Anzeigen"
         }
     }
 }

geonode_mapstore_client/static/mapstore/gn-translations/data.en-US.json

@@ -454,7 +454,8 @@
             "metadataNotFound": "Metadata not found for the selected resource",
             "filterMetadata": "Filter by name...",
             "noMetadataFound": "No metadata found...",
-            "metadataGroupTitle": "General"
+            "metadataGroupTitle": "General",
+            "noGridData": "No data to display"
         }
     }
 }

geonode_mapstore_client/static/mapstore/gn-translations/data.es-ES.json

@@ -453,7 +453,8 @@
             "metadataNotFound": "No se encontraron metadatos para el recurso seleccionado",
             "filterMetadata": "Filtrar por nombre...",
             "noMetadataFound": "No se encontraron metadatos...",
-            "metadataGroupTitle": "General"
+            "metadataGroupTitle": "General",
+            "noGridData": "No hay datos para mostrar"
         }
     }
 }