1 files changed, 41 insertions, 0 deletions

diff --git a/viewer/src/services/ui/ldFullscreen.ts b/viewer/src/services/ui/ldFullscreen.ts
new file mode 100644
index 0000000..80e755d
--- /dev/null
+++ b/viewer/src/services/ui/ldFullscreen.ts
@@ -0,0 +1,41 @@
+/* ldgallery - A static generator which turns a collection of tagged
+--             pictures into a searchable web gallery.
+--
+-- Copyright (C) 2019-2022  Guillaume FOUET
+--
+-- 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 <https://www.gnu.org/licenses/>.
+*/
+
+import { useUiStore } from '@/store/uiStore';
+import { useEventListener } from '@vueuse/core';
+import { watch } from 'vue';
+
+export const useLdFullscreen = () => {
+  const uiStore = useUiStore();
+
+  useEventListener(document, 'fullscreenchange', onFullscreenChange);
+
+  function onFullscreenChange() {
+    uiStore.toggleFullscreen(isFullscreenActive());
+  }
+
+  function isFullscreenActive(): boolean {
+    return Boolean(document.fullscreenElement);
+  }
+
+  watch(() => uiStore.fullscreen, (fullscreen) => {
+    if (fullscreen && !isFullscreenActive()) document.body.requestFullscreen();
+    else if (isFullscreenActive()) document.exitFullscreen();
+  });
+};