4026648f98
Transitions never actually animated: Svelte scopes @keyframes names but does NOT rewrite animation references in inline style attributes, so the inline 'animation: crossfade-in ...' never matched its scoped keyframe — a hard cut, no fade (Ken Burns' zoom was dead too). Move the animation into scoped classes and pass dynamic values via CSS custom properties. - Real two-layer crossfade: hold the outgoing frame opaque beneath the incoming one (which is decode-gated), so there's no black flash and no decode pop. - New slide transitions (from below/left/right) as one reusable component; the previous frame is pushed off the opposite edge in step (a conveyor/push), easeInOutSine 1s. - Fullscreen toggle button (Fullscreen API) + 'f' shortcut; Esc in fullscreen no longer also navigates away. - Controls now reveal on pointer/keyboard activity and fade when idle (cursor hides too) instead of being always visible. - wakelock: null the sentinel on the OS 'release' event so re-acquire-on-visible actually fires (previously the screen could sleep after the tab was first hidden). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
67 lines
1.8 KiB
Svelte
67 lines
1.8 KiB
Svelte
<script lang="ts">
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// Crossfade + slow zoom and pan (the "Ken Burns" effect). Image-only — videos
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// fall back to the crossfade behaviour to avoid double-animation.
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interface Props {
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src: string;
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isVideo: boolean;
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durationMs: number;
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/** Fired when a video slide finishes so the parent can advance early. */
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onended?: () => void;
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}
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let { src, isVideo, durationMs, onended }: Props = $props();
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// Mild random pan so each slide feels different. Range chosen so the image never
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// pans out of frame given the object-fit: cover.
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const panX = Math.round((Math.random() - 0.5) * 6); // -3% .. +3%
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const panY = Math.round((Math.random() - 0.5) * 6);
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</script>
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<!-- Both animations live in scoped classes rather than inline `style="animation:…"`.
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Svelte scopes `@keyframes` names and only rewrites `animation` references inside this
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<style> block, so an inline animation name never matches the scoped keyframe and the
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effect silently dies. Dynamic values (fade duration, pan origin) pass through as inline
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custom properties / properties that Svelte leaves untouched. -->
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<div
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class="kb absolute inset-0 flex items-center justify-center overflow-hidden bg-black"
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style="--fade-dur: {durationMs}ms"
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>
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{#if isVideo}
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<!-- svelte-ignore a11y_media_has_caption -->
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<video {src} autoplay muted playsinline {onended} class="h-full w-full object-contain"></video>
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{:else}
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<img
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{src}
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alt=""
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class="kb-img h-full w-full object-cover"
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style="transform-origin: {50 + panX}% {50 + panY}%;"
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/>
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{/if}
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</div>
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<style>
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.kb {
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animation: kb-fade var(--fade-dur, 600ms) ease-out forwards;
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}
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.kb-img {
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animation: kb-zoom 10s ease-out forwards;
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}
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@keyframes kb-fade {
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from {
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opacity: 0;
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}
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to {
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opacity: 1;
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}
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}
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@keyframes kb-zoom {
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from {
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transform: scale(1);
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}
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to {
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transform: scale(1.1);
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}
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}
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</style>
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