UX: Change thumbnail size calculation for improved performance #1307

Signed-off-by: Michael Mayer <michael@photoprism.app>

Author: lastzero

frontend/src/common/util.js

@@ -609,13 +609,13 @@ export default class $util {
     }
   }
 
-  static thumbSize(pixelsWidth, pixelsHeight) {
+  static thumbSize(viewportWidth, viewportHeight) {
     const thumbs = $config.values.thumbs;
 
     for (let i = 0; i < thumbs.length; i++) {
       let t = thumbs[i];
 
-      if (t.w >= pixelsWidth && t.h >= pixelsHeight) {
+      if (t.w >= viewportWidth || t.h >= viewportHeight) {
         return t.size;
       }
     }

frontend/src/component/lightbox.vue

@@ -1981,7 +1981,7 @@ export default {
       }
 
       // Do not proceed unless the image is zoomed to near its intrinsic (natural) size.
-      if (zoomLevel < 0.9) {
+      if (zoomLevel < 0.95) {
         return;
       }