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feat(frontend): enlarge viewer prev/next into full-height tap zones

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Paging previously required hitting a small arrow circle pinned near each
edge. Replace them with full-height left/right tap zones (30%, capped at
220px) so a tap anywhere on that side pages. The arrow stays as a chip
near the edge with a hover-only hint gradient; the zones sit above the
image, and the "Replacing…" overlay is lifted above them so an in-flight
content replace still blocks paging.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Masahiko AMANO
2026-07-06 22:35:47 +03:00
parent c3ed36f178
commit 41c4667eb4
1 changed files with 68 additions and 39 deletions
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frontend/src/lib/components/file/FileViewer.svelte
+68 -39
View File
@@ -499,39 +499,43 @@
</div>
{/if}
<!-- Prev / Next -->
<!-- Prev / Next: the whole left/right side of the preview is a tap zone -->
{#if prevId}
<button
class="nav-btn nav-prev"
class="nav-zone nav-prev"
onclick={() => prevId && onNavigate(prevId)}
aria-label="Previous file"
>
<svg width="18" height="18" viewBox="0 0 18 18" fill="none" aria-hidden="true">
<path
d="M11 3L5 9L11 15"
stroke="currentColor"
stroke-width="2"
stroke-linecap="round"
stroke-linejoin="round"
/>
</svg>
<span class="nav-chip">
<svg width="18" height="18" viewBox="0 0 18 18" fill="none" aria-hidden="true">
<path
d="M11 3L5 9L11 15"
stroke="currentColor"
stroke-width="2"
stroke-linecap="round"
stroke-linejoin="round"
/>
</svg>
</span>
</button>
{/if}
{#if nextId}
<button
class="nav-btn nav-next"
class="nav-zone nav-next"
onclick={() => nextId && onNavigate(nextId)}
aria-label="Next file"
>
<svg width="18" height="18" viewBox="0 0 18 18" fill="none" aria-hidden="true">
<path
d="M7 3L13 9L7 15"
stroke="currentColor"
stroke-width="2"
stroke-linecap="round"
stroke-linejoin="round"
/>
</svg>
<span class="nav-chip">
<svg width="18" height="18" viewBox="0 0 18 18" fill="none" aria-hidden="true">
<path
d="M7 3L13 9L7 15"
stroke="currentColor"
stroke-width="2"
stroke-linecap="round"
stroke-linejoin="round"
/>
</svg>
</span>
</button>
{/if}
</div>
@@ -777,7 +781,7 @@
.preview-busy {
position: absolute;
inset: 0;
z-index: 2;
z-index: 4; /* above the nav zones — an in-flight replace blocks paging */
display: flex;
flex-direction: column;
align-items: center;
@@ -818,33 +822,58 @@
background-color: #1a1010;
}
/* ---- Nav buttons ---- */
.nav-btn {
/* ---- Nav zones ----
Each covers the full-height left/right portion of the preview so paging
only needs a tap on that side, not a precise hit on the arrow. They sit
above the image, so over a full-width image the sides page and the centre
still opens the original. The dark hint gradient shows on hover only, to
keep photos clean on touch where there is no hover. */
.nav-zone {
position: absolute;
top: 50%;
transform: translateY(-50%);
width: 40px;
height: 40px;
border-radius: 50%;
top: 0;
bottom: 0;
width: 30%;
max-width: 220px;
border: none;
background-color: rgba(0, 0, 0, 0.55);
color: #fff;
background: none;
padding: 0 12px;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
transition: background-color 0.15s;
}
.nav-btn:hover {
background-color: rgba(0, 0, 0, 0.8);
z-index: 3;
-webkit-tap-highlight-color: transparent;
}
.nav-prev {
left: 10px;
left: 0;
justify-content: flex-start;
}
.nav-next {
right: 10px;
right: 0;
justify-content: flex-end;
}
.nav-prev:hover {
background: linear-gradient(to right, rgba(0, 0, 0, 0.3), transparent);
}
.nav-next:hover {
background: linear-gradient(to left, rgba(0, 0, 0, 0.3), transparent);
}
.nav-chip {
display: flex;
align-items: center;
justify-content: center;
width: 40px;
height: 40px;
border-radius: 50%;
background-color: rgba(0, 0, 0, 0.55);
color: #fff;
transition: background-color 0.15s;
}
.nav-zone:hover .nav-chip {
background-color: rgba(0, 0, 0, 0.8);
}
/* ---- Metadata panel ---- */