Feature: 360-view, experimenting with photo-sphere-viewer

src/UI/Image/photoAdapter.ts

@@ -0,0 +1,54 @@
+import {
+    EquirectangularTilesAdapter,
+    EquirectangularTilesAdapterConfig
+} from "@photo-sphere-viewer/equirectangular-tiles-adapter"
+
+export class PhotoAdapter extends EquirectangularTilesAdapter {
+    // This code was shamelessly stolen from https://gitlab.com/panoramax/clients/web-viewer/-/blob/develop/src/utils/PhotoAdapter.js
+    // MIT-license; thank you adrien!
+
+    private readonly _shouldGoFast: () => boolean
+
+    constructor(viewer, config?: EquirectangularTilesAdapterConfig & { shouldGoFast?: () => boolean }) {
+        super(viewer, config)
+        this._shouldGoFast = config?.shouldGoFast ?? (() => true)
+    }
+
+    /**
+     * Override to skip loading SD images according to shouldGoFast option.
+     */
+    public async loadTexture(panorama, loader) {
+        if (!panorama.origBaseUrl) {
+            panorama.origBaseUrl = panorama.baseUrl
+        } else {
+            panorama.baseUrl = panorama.origBaseUrl
+        }
+
+        // Fast mode + thumbnail available + no HD image loaded yet + flat picture
+        if (
+            this._shouldGoFast()
+            && panorama.thumbUrl
+            && !panorama.hdLoaded
+            && panorama.rows == 1
+        ) {
+            panorama.baseUrl = panorama.thumbUrl
+        }
+
+        let data = await super.loadTexture(panorama, loader)
+        if (panorama.baseUrl === panorama.origBaseUrl) {
+            panorama.hdLoaded = true
+        }
+        return data
+    }
+
+    /**
+     * Override to skip loading tiles according to shouldGoFast option.
+     * @private
+     */
+    /*
+   private __loadTiles(tiles) {
+        if (!this._shouldGoFast()) {
+            super.__loadTiles(tiles)
+        }
+    }*/
+}