feat: sync interactive image previews

dist-cli/theme/styles/layouts.css

@@ -126,37 +126,55 @@
   position: fixed;
   inset: 0;
   z-index: 2147483647;
-  display: grid;
-  grid-template-columns: minmax(0, 1fr);
-  grid-template-rows: minmax(0, 1fr);
-  place-items: center;
+  display: block;
   box-sizing: border-box;
   min-width: 0;
   min-height: 0;
-  padding: clamp(16px, 4vmin, 42px);
+  padding: clamp(16px, 4vmin, 42px) clamp(16px, 4vmin, 42px) clamp(86px, 12vmin, 112px);
   overflow: hidden;
   overscroll-behavior: contain;
   background: rgba(0, 0, 0, .92);
 }
 
-.easy-image-lightbox-preview {
-  display: block;
-  place-self: center;
+.easy-image-lightbox-viewport {
+  position: relative;
+  width: 100%;
+  height: 100%;
   min-width: 0;
   min-height: 0;
-  width: auto;
-  height: auto;
-  max-width: 100%;
-  max-height: 100%;
-  max-inline-size: 100%;
-  max-block-size: 100%;
+  overflow: hidden;
+  touch-action: none;
+  user-select: none;
+}
+
+.easy-image-lightbox-viewport.easy-image-lightbox-pannable {
+  cursor: grab;
+}
+
+.easy-image-lightbox-viewport.easy-image-lightbox-dragging {
+  cursor: grabbing;
+}
+
+.easy-image-lightbox-preview {
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  display: block;
+  max-width: none;
+  max-height: none;
+  max-inline-size: none;
+  max-block-size: none;
   margin: 0;
+  transform-origin: 0 0;
   object-fit: contain;
   object-position: center;
+  user-select: none;
+  -webkit-user-drag: none;
 }
 
 .easy-image-lightbox-close {
   position: absolute;
+  z-index: 2;
   top: 18px;
   right: 22px;
   display: grid;
@@ -179,6 +197,59 @@
   outline: none;
 }
 
+.easy-image-scale-toolbar {
+  position: absolute;
+  z-index: 2;
+  left: 50%;
+  bottom: max(18px, env(safe-area-inset-bottom));
+  display: grid;
+  grid-template-columns: 52px minmax(76px, auto) 52px;
+  align-items: center;
+  padding: 6px;
+  border: 1px solid rgba(255, 255, 255, .72);
+  border-radius: 999px;
+  background: rgba(250, 250, 250, .96);
+  box-shadow: 0 12px 36px rgba(0, 0, 0, .32);
+  color: #202124;
+  transform: translateX(-50%);
+  backdrop-filter: blur(12px);
+}
+
+.easy-image-scale-button {
+  display: grid;
+  width: 46px;
+  height: 46px;
+  place-items: center;
+  border: 0;
+  border-radius: 50%;
+  background: #e4e5e7;
+  color: #202124;
+  padding: 0 0 3px;
+  font: 300 34px/1 Arial, sans-serif;
+  cursor: pointer;
+}
+
+.easy-image-scale-button:hover,
+.easy-image-scale-button:focus-visible {
+  background: var(--easy-accent);
+  color: #fff;
+  outline: none;
+}
+
+.easy-image-scale-button:disabled {
+  color: #9aa0a6;
+  cursor: not-allowed;
+  opacity: .55;
+}
+
+.easy-image-scale-value {
+  min-width: 76px;
+  padding: 0 10px;
+  text-align: center;
+  font: 500 20px/1 Lato, "Noto Sans SC", sans-serif;
+  font-variant-numeric: tabular-nums;
+}
+
 .easy-content-scale-toolbar {
   position: absolute;
   top: 8px;
@@ -275,6 +346,35 @@ body.easy-slide-scroll-fallback .slidev-layout {
   .easy-content-scale-toolbar { opacity: .78; }
 }
 
+@media (max-width: 520px) {
+  .easy-image-lightbox {
+    padding: 14px 14px calc(84px + env(safe-area-inset-bottom));
+  }
+
+  .easy-image-lightbox-close {
+    top: 12px;
+    right: 12px;
+    width: 42px;
+    height: 42px;
+  }
+
+  .easy-image-scale-toolbar {
+    bottom: max(12px, env(safe-area-inset-bottom));
+    grid-template-columns: 48px minmax(68px, auto) 48px;
+    padding: 5px;
+  }
+
+  .easy-image-scale-button {
+    width: 42px;
+    height: 42px;
+  }
+
+  .easy-image-scale-value {
+    min-width: 68px;
+    font-size: 18px;
+  }
+}
+
 @media print {
   .easy-content-scale-toolbar,
   .easy-image-lightbox { display: none !important; }