added download action type

qortal-ui-plugins/plugins/core/components/qdn-action-constants.js

@@ -0,0 +1,56 @@
+export const mimeToExtensionMap = {
+    // Documents
+    "application/pdf": ".pdf",
+    "application/msword": ".doc",
+    "application/vnd.openxmlformats-officedocument.wordprocessingml.document": ".docx",
+    "application/vnd.ms-excel": ".xls",
+    "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": ".xlsx",
+    "application/vnd.ms-powerpoint": ".ppt",
+    "application/vnd.openxmlformats-officedocument.presentationml.presentation": ".pptx",
+    "application/vnd.oasis.opendocument.text": ".odt",
+    "application/vnd.oasis.opendocument.spreadsheet": ".ods",
+    "application/vnd.oasis.opendocument.presentation": ".odp",
+    "text/plain": ".txt",
+    "text/csv": ".csv",
+    "text/html": ".html",
+    "application/xhtml+xml": ".xhtml",
+    "application/xml": ".xml",
+    "application/json": ".json",
+
+    // Images
+    "image/jpeg": ".jpg",
+    "image/png": ".png",
+    "image/gif": ".gif",
+    "image/webp": ".webp",
+    "image/svg+xml": ".svg",
+    "image/tiff": ".tif",
+    "image/bmp": ".bmp",
+
+    // Audio
+    "audio/mpeg": ".mp3",
+    "audio/ogg": ".ogg",
+    "audio/wav": ".wav",
+    "audio/webm": ".weba",
+    "audio/aac": ".aac",
+
+    // Video
+    "video/mp4": ".mp4",
+    "video/webm": ".webm",
+    "video/ogg": ".ogv",
+    "video/x-msvideo": ".avi",
+    "video/quicktime": ".mov",
+    "video/x-ms-wmv": ".wmv",
+    "video/mpeg": ".mpeg",
+    "video/3gpp": ".3gp",
+    "video/3gpp2": ".3g2",
+    "video/x-matroska": ".mkv",
+    "video/x-flv": ".flv",
+
+    // Archives
+    "application/zip": ".zip",
+    "application/x-rar-compressed": ".rar",
+    "application/x-tar": ".tar",
+    "application/x-7z-compressed": ".7z",
+    "application/x-gzip": ".gz",
+    "application/x-bzip2": ".bz2",
+};

qortal-ui-plugins/plugins/core/qdn/browser/browser.src.js

@@ -23,6 +23,7 @@ import { Loader } from '../../../utils/loader.js';
 import { QORT_DECIMALS } from 'qortal-ui-crypto/api/constants';
 import nacl from '../../../../../qortal-ui-crypto/api/deps/nacl-fast.js'
 import ed2curve from '../../../../../qortal-ui-crypto/api/deps/ed2curve.js'
+import { mimeToExtensionMap } from '../../components/qdn-action-constants';
 const parentEpml = new Epml({ type: 'WINDOW', source: window.parent });
 
 class WebBrowser extends LitElement {
@@ -150,8 +151,7 @@ class WebBrowser extends LitElement {
 		if (
 			this.identifier && this.identifier != 'null' &&
 			this.identifier != 'default'
-		)
-		{
+		) {
 			displayUrl = displayUrl.concat('/' + this.identifier);
 		}
 		if (this.path != null && this.path != '/')
@@ -1392,6 +1392,83 @@ class WebBrowser extends LitElement {
 					// If they decline, send back JSON that includes an `error` key, such as `{"error": "User declined request"}`
 					break;
 				}
+				case 'DOWNLOAD': {
+					try {
+						const requiredFields = ['filename', 'blob'];
+						const missingFields = [];
+
+						requiredFields.forEach((field) => {
+							if (!data[field]) {
+								missingFields.push(field);
+							}
+						});
+
+						if (missingFields.length > 0) {
+							const missingFieldsString = missingFields.join(', ');
+							const errorMsg = `Missing fields: ${missingFieldsString}`
+							let data = {};
+							data['error'] = errorMsg;
+							response = JSON.stringify(data);
+							break
+						}
+
+						const filename = data.filename
+						const blob = data.blob
+
+						const mimeType = blob.type || data.mimeType
+						let backupExention = filename.split('.').pop()
+						if (backupExention) {
+							backupExention = '.' + backupExention
+						}
+						const fileExtension = mimeToExtensionMap[mimeType] || backupExention
+						let fileHandleOptions = {}
+						if (!mimeType) {
+							const obj = {};
+							const errorMsg = 'A mimeType could not be derived';
+							obj['error'] = errorMsg;
+							response = JSON.stringify(obj);
+							break
+						}
+						if (!fileExtension) {
+							const obj = {};
+							const errorMsg = 'A file extension could not be derived';
+							obj['error'] = errorMsg;
+							response = JSON.stringify(obj);
+							break
+						}
+						if (fileExtension && mimeType) {
+							fileHandleOptions = {
+								accept: {
+									[mimeType]: [fileExtension]
+								}
+							}
+						}
+						const fileHandle = await self.showSaveFilePicker({
+							suggestedName: filename,
+							types: [
+								{
+									description: mimeType,
+									...fileHandleOptions
+								},
+							]
+
+
+						})
+						const writeFile = async (fileHandle, contents) => {
+							const writable = await fileHandle.createWritable()
+							await writable.write(contents)
+							await writable.close()
+						}
+						writeFile(fileHandle, blob).then(() => console.log("FILE SAVED"))
+						response = JSON.stringify(true);
+					} catch (error) {
+						const obj = {};
+						const errorMsg = error.message || 'Failed to initiate download';
+						obj['error'] = errorMsg;
+						response = JSON.stringify(obj);
+					}
+					break;
+				}
 
 				// case 'DEPLOY_AT': {
 				// 	const requiredFields = ['name', 'description', 'tags', 'creationBytes', 'amount', 'assetId', 'type'];