1 files changed, 47 insertions, 0 deletions
diff --git a/core/src/utils/ClipboardFallback.ts b/core/src/utils/ClipboardFallback.ts
new file mode 100644
index 00000000000..b374f9d0a44
--- /dev/null
+++ b/core/src/utils/ClipboardFallback.ts
@@ -0,0 +1,47 @@
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+import { t } from '@nextcloud/l10n'
+
+/**
+ *
+ * @param text
+ */
+function unsecuredCopyToClipboard(text) {
+	const textArea = document.createElement('textarea')
+	const textAreaContent = document.createTextNode(text)
+	textArea.appendChild(textAreaContent)
+	document.body.appendChild(textArea)
+
+	textArea.focus({ preventScroll: true })
+	textArea.select()
+
+	try {
+		// This is a fallback for browsers that do not support the Clipboard API
+		// execCommand is deprecated, but it is the only way to copy text to the clipboard in some browsers
+		document.execCommand('copy')
+	} catch (err) {
+		window.prompt(t('core', 'Clipboard not available, please copy manually'), text)
+		console.error('[ERROR] core:  files Unable to copy to clipboard', err)
+	}
+
+	document.body.removeChild(textArea)
+}
+
+/**
+ *
+ */
+function initFallbackClipboardAPI() {
+	if (!window.navigator?.clipboard?.writeText) {
+		console.info('[INFO] core: Clipboard API not available, using fallback')
+		Object.defineProperty(window.navigator, 'clipboard', {
+			value: {
+				writeText: unsecuredCopyToClipboard,
+			},
+			writable: false,
+		})
+	}
+}
+
+export { initFallbackClipboardAPI }