feat(web): improve slideshow quality of life (#18778)

* Add a new setting to toggle autoplay when showing the slideshow.
* Fix an issue where the slideshow would restart automatically when
navigating after it was paused.
* Add a keyboard shortcut 's' to start the slideshow from the asset
viewer.
* Add a keyboard shortcut ' ' to toggle the slideshow play/paused.
* Change the timeout for hiding the slideshow controls from 10 to 2.5
seconds.
* Add English translation for the 'autoplay_slideshow' setting.

Co-authored-by: Alex <alex.tran1502@gmail.com>

i18n/en.json

@@ -477,6 +477,7 @@
   "authorized_devices": "Authorized Devices",
   "automatic_endpoint_switching_subtitle": "Connect locally over designated Wi-Fi when available and use alternative connections elsewhere",
   "automatic_endpoint_switching_title": "Automatic URL switching",
+  "autoplay_slideshow": "Autoplay slideshow",
   "back": "Back",
   "back_close_deselect": "Back, close, or deselect",
   "background_location_permission": "Background location permission",

web/src/lib/components/asset-viewer/asset-viewer.svelte

@@ -352,7 +352,9 @@
   const handleUpdateSelectedEditType = (type: string) => {
     selectedEditType = type;
   };
+
   let isFullScreen = $derived(fullscreenElement !== null);
+
   $effect(() => {
     if (asset) {
       previewStackedAsset = undefined;

web/src/lib/components/asset-viewer/photo-viewer.svelte

@@ -113,6 +113,8 @@
     });
   };
 
+  const onPlaySlideshow = () => ($slideshowState = SlideshowState.PlaySlideshow);
+
   $effect(() => {
     if (isFaceEditMode.value && $photoZoomState.currentZoom > 1) {
       zoomToggle();
@@ -206,6 +208,8 @@
 
 <svelte:document
   use:shortcuts={[
+    { shortcut: { key: 'z' }, onShortcut: zoomToggle, preventDefault: true },
+    { shortcut: { key: 's' }, onShortcut: onPlaySlideshow, preventDefault: true },
     { shortcut: { key: 'c', ctrl: true }, onShortcut: onCopyShortcut, preventDefault: false },
     { shortcut: { key: 'c', meta: true }, onShortcut: onCopyShortcut, preventDefault: false },
     { shortcut: { key: 'z' }, onShortcut: zoomToggle, preventDefault: false },

web/src/lib/components/asset-viewer/slideshow-bar.svelte

@@ -28,7 +28,8 @@
     onSetToFullScreen = () => {},
   }: Props = $props();
 
-  const { restartProgress, stopProgress, slideshowDelay, showProgressBar, slideshowNavigation } = slideshowStore;
+  const { restartProgress, stopProgress, slideshowDelay, showProgressBar, slideshowNavigation, slideshowAutoplay } =
+    slideshowStore;
 
   let progressBarStatus: ProgressBarStatus | undefined = $state();
   let progressBar = $state<ReturnType<typeof ProgressBar>>();
@@ -60,20 +61,20 @@
         showControls = false;
         setCursorStyle('none');
       }
-    }, 10_000);
+    }, 2500);
   };
 
   onMount(() => {
     hideControlsAfterDelay();
     unsubscribeRestart = restartProgress.subscribe((value) => {
       if (value) {
-        progressBar?.restart(value);
+        progressBar?.restart();
       }
     });
 
     unsubscribeStop = stopProgress.subscribe((value) => {
       if (value) {
-        progressBar?.restart(false);
+        progressBar?.restart();
         stopControlsHideTimer();
       }
     });
@@ -90,7 +91,7 @@
   });
 
   const handleDone = async () => {
-    await progressBar?.reset();
+    await progressBar?.resetProgress();
 
     if ($slideshowNavigation === SlideshowNavigation.AscendingOrder) {
       onPrevious();
@@ -113,6 +114,17 @@
     { shortcut: { key: 'Escape' }, onShortcut: onClose },
     { shortcut: { key: 'ArrowLeft' }, onShortcut: onPrevious },
     { shortcut: { key: 'ArrowRight' }, onShortcut: onNext },
+    {
+      shortcut: { key: ' ' },
+      onShortcut: () => {
+        if (progressBarStatus === ProgressBarStatus.Paused) {
+          progressBar?.play();
+        } else {
+          progressBar?.pause();
+        }
+      },
+      preventDefault: true,
+    },
   ]}
 />
 
@@ -187,7 +199,7 @@
 {/if}
 
 <ProgressBar
-  autoplay
+  autoplay={$slideshowAutoplay}
   hidden={!$showProgressBar}
   duration={$slideshowDelay}
   bind:this={progressBar}

web/src/lib/components/shared-components/progress-bar/progress-bar.svelte

@@ -51,7 +51,11 @@
 
   onMount(async () => {
     if (autoplay) {
+      status = ProgressBarStatus.Playing;
       await play();
+    } else {
+      status = ProgressBarStatus.Paused;
+      await progress.set(0);
     }
   });
 
@@ -67,16 +71,15 @@
     await progress.set($progress);
   };
 
-  export const restart = async (autoplay: boolean) => {
+  export const restart = async () => {
     await progress.set(0);
 
-    if (autoplay) {
+    if (status !== ProgressBarStatus.Paused) {
       await play();
     }
   };
 
-  export const reset = async () => {
-    status = ProgressBarStatus.Paused;
+  export const resetProgress = async () => {
     await progress.set(0);
   };
 

web/src/lib/components/slideshow-settings.svelte

@@ -16,7 +16,14 @@
   import type { RenderedOption } from './elements/dropdown.svelte';
   import SettingDropdown from './shared-components/settings/setting-dropdown.svelte';
 
-  const { slideshowDelay, showProgressBar, slideshowNavigation, slideshowLook, slideshowTransition } = slideshowStore;
+  const {
+    slideshowDelay,
+    showProgressBar,
+    slideshowNavigation,
+    slideshowLook,
+    slideshowTransition,
+    slideshowAutoplay,
+  } = slideshowStore;
 
   interface Props {
     onClose?: () => void;
@@ -30,6 +37,7 @@
   let tempSlideshowNavigation = $state($slideshowNavigation);
   let tempSlideshowLook = $state($slideshowLook);
   let tempSlideshowTransition = $state($slideshowTransition);
+  let tempSlideshowAutoplay = $state($slideshowAutoplay);
 
   const navigationOptions: Record<SlideshowNavigation, RenderedOption> = {
     [SlideshowNavigation.Shuffle]: { icon: mdiShuffle, title: $t('shuffle') },
@@ -60,6 +68,7 @@
     $slideshowNavigation = tempSlideshowNavigation;
     $slideshowLook = tempSlideshowLook;
     $slideshowTransition = tempSlideshowTransition;
+    $slideshowAutoplay = tempSlideshowAutoplay;
     onClose();
   };
 </script>
@@ -83,6 +92,7 @@
           tempSlideshowLook = handleToggle(option, lookOptions) || tempSlideshowLook;
         }}
       />
+      <SettingSwitch title={$t('autoplay_slideshow')} bind:checked={tempSlideshowAutoplay} />
       <SettingSwitch title={$t('show_progress_bar')} bind:checked={tempShowProgressBar} />
       <SettingSwitch title={$t('show_slideshow_transition')} bind:checked={tempSlideshowTransition} />
       <SettingInputField

web/src/lib/stores/slideshow.store.ts

@@ -39,6 +39,7 @@ function createSlideshowStore() {
   const showProgressBar = persisted<boolean>('slideshow-show-progressbar', true);
   const slideshowDelay = persisted<number>('slideshow-delay', 5, {});
   const slideshowTransition = persisted<boolean>('slideshow-transition', true);
+  const slideshowAutoplay = persisted<boolean>('slideshow-autoplay', true, {});
 
   return {
     restartProgress: {
@@ -69,6 +70,7 @@ function createSlideshowStore() {
     slideshowDelay,
     showProgressBar,
     slideshowTransition,
+    slideshowAutoplay,
   };
 }