Dynamically generate background image url

Signed-off-by: Julius Härtl <jus@bitgrid.net>

1 files changed, 45 insertions, 0 deletions

diff --git a/apps/dashboard/src/mixins/isMobile.js b/apps/dashboard/src/mixins/isMobile.js
new file mode 100644
index 00000000000..cc66af56a82
--- /dev/null
+++ b/apps/dashboard/src/mixins/isMobile.js
@@ -0,0 +1,45 @@
+/*
+ * @copyright Copyright (c) 2020 Julius Härtl <jus@bitgrid.net>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+export default {
+	data() {
+		return {
+			isMobile: this._isMobile(),
+		}
+	},
+	beforeMount() {
+		window.addEventListener('resize', this._onResize)
+	},
+	beforeDestroy() {
+		window.removeEventListener('resize', this._onResize)
+	},
+	methods: {
+		_onResize() {
+			// Update mobile mode
+			this.isMobile = this._isMobile()
+		},
+		_isMobile() {
+			// check if content width is under 768px
+			return document.documentElement.clientWidth < 768
+		},
+	},
+}