more refactor

src/vr180player/bootstrap.ts

@@ -0,0 +1,99 @@
+import {
+	DEFAULT_PROJECTION,
+	PLAYER_SELECTOR,
+	type ProjectionMode,
+	VALID_PROJECTIONS
+} from './config.js';
+import { create2DControlPanel, createPlayButton, injectPlayerStyles } from './dom/dom.js';
+
+export type BootstrapContext = {
+	playButton: HTMLButtonElement;
+	playerContainer: HTMLElement;
+	projectionMode: ProjectionMode;
+	videoElement: HTMLVideoElement;
+};
+
+export function bootstrapPlayer(playerBase: string, onReady: (context: BootstrapContext) => void): void {
+	injectPlayerStyles(playerBase);
+
+	onDocumentReady(() => {
+		const containers = document.querySelectorAll<HTMLElement>(PLAYER_SELECTOR);
+
+		if (containers.length === 0) {
+			console.error(`VR_WEB_PLAYER_DOM: Expected exactly one ${PLAYER_SELECTOR} container, found none.`);
+			return;
+		}
+
+		if (containers.length > 1) {
+			console.warn(`VR_WEB_PLAYER_DOM: This version supports exactly one ${PLAYER_SELECTOR} container per page. Found ${containers.length}; no player was initialized.`);
+			return;
+		}
+
+		const playerContainer = containers[0];
+		playerContainer.classList.add('vrwp');
+
+		const configuredProjection = (playerContainer.dataset.projection || DEFAULT_PROJECTION).trim().toLowerCase();
+		if (!VALID_PROJECTIONS.has(configuredProjection as ProjectionMode)) {
+			console.error(`VR_WEB_PLAYER_CONFIG: Unsupported data-projection="${configuredProjection}". Use "vr180" or "plane".`);
+			return;
+		}
+
+		const videoElement = playerContainer.querySelector('video');
+		if (!videoElement) {
+			console.error(`VR_WEB_PLAYER_DOM: ${PLAYER_SELECTOR} must contain a video element.`);
+			return;
+		}
+		videoElement.classList.add('vrwp-video');
+
+		const playButton = createPlayButton();
+		playerContainer.appendChild(playButton);
+		playerContainer.appendChild(create2DControlPanel());
+		playButton.disabled = true;
+		videoElement.load();
+
+		completeXrSupportCheck(playButton, () => {
+			onReady({
+				playButton,
+				playerContainer,
+				projectionMode: configuredProjection as ProjectionMode,
+				videoElement
+			});
+		});
+	});
+}
+
+function onDocumentReady(callback: () => void): void {
+	if (document.readyState === 'loading') {
+		document.addEventListener('DOMContentLoaded', callback, { once: true });
+		return;
+	}
+
+	callback();
+}
+
+function completeXrSupportCheck(playButton: HTMLButtonElement, onComplete: () => void): void {
+	if (!navigator.xr) {
+		markXrUnsupported(playButton);
+		onComplete();
+		return;
+	}
+
+	navigator.xr.isSessionSupported('immersive-vr').then((supported) => {
+		if (supported) {
+			playButton.dataset.xrSupported = 'true';
+		} else {
+			markXrUnsupported(playButton);
+		}
+
+		onComplete();
+	}).catch((err) => {
+		console.error('XR Support Check Error:', err);
+		markXrUnsupported(playButton);
+		onComplete();
+	});
+}
+
+function markXrUnsupported(playButton: HTMLButtonElement): void {
+	playButton.dataset.xrSupported = 'false';
+	playButton.disabled = false;
+}

src/vr180player/rendering/texture-manager.ts

@@ -0,0 +1,67 @@
+export type ManagedTexture = {
+	needsUpdate?: boolean;
+	dispose(): void;
+};
+
+export type ManagedMaterial<TTexture extends ManagedTexture = ManagedTexture> = {
+	map: TTexture | null;
+	needsUpdate: boolean;
+};
+
+export type TextureFactory<TTexture extends ManagedTexture = ManagedTexture> = (video: HTMLVideoElement) => TTexture;
+
+export class VideoTextureManager<TTexture extends ManagedTexture = ManagedTexture> {
+	private texture: TTexture | null = null;
+	private readonly createTexture: TextureFactory<TTexture>;
+	private readonly video: HTMLVideoElement;
+
+	constructor(video: HTMLVideoElement, createTexture: TextureFactory<TTexture>) {
+		this.createTexture = createTexture;
+		this.video = video;
+	}
+
+	get current(): TTexture | null {
+		return this.texture;
+	}
+
+	assignToMaterial(material: ManagedMaterial<TTexture>): TTexture {
+		const texture = this.create();
+		material.map = texture;
+		material.needsUpdate = true;
+		return texture;
+	}
+
+	clearMaterial(material?: ManagedMaterial<TTexture> | null): void {
+		if (material?.map) {
+			const materialTexture = material.map;
+			material.map = null;
+			material.needsUpdate = true;
+			materialTexture.dispose();
+
+			if (materialTexture === this.texture) {
+				this.texture = null;
+			}
+		}
+
+		this.dispose();
+	}
+
+	create(): TTexture {
+		this.dispose();
+		this.texture = this.createTexture(this.video);
+		return this.texture;
+	}
+
+	dispose(): void {
+		if (this.texture) {
+			this.texture.dispose();
+			this.texture = null;
+		}
+	}
+
+	updateIfPlaying(): void {
+		if (this.texture && !this.video.paused && !this.video.ended) {
+			this.texture.needsUpdate = true;
+		}
+	}
+}

src/vr180player/vr180-player.ts

@@ -1,13 +1,10 @@
 import {
-	DEFAULT_PROJECTION,
 	PLANE_2D_DISTANCE,
 	PLANE_DISTANCE,
-	PLAYER_SELECTOR,
-	type ProjectionMode,
-	VALID_PROJECTIONS
+	type ProjectionMode
 } from './config.js';
+import { bootstrapPlayer } from './bootstrap.js';
 import { createContentScene } from './rendering/content-scene.js';
-import { create2DControlPanel, createPlayButton, injectPlayerStyles } from './dom/dom.js';
 import {
 	applySbsTextureWindow as applySbsTextureWindowCore,
 	hideContentMeshes as hideContentMeshesCore,
@@ -35,11 +32,12 @@ import {
 	createPlayerRenderer,
 	resizePlayerRenderer
 } from './rendering/renderer-lifecycle.js';
+import { VideoTextureManager } from './rendering/texture-manager.js';
 
 const _playerBase = new URL('.', import.meta.url).href;
 
-let playerContainer, projectionMode: ProjectionMode = DEFAULT_PROJECTION;
-let scene, camera, renderer, video, videoTexture, sphereMaterial;
+let playerContainer, projectionMode: ProjectionMode;
+let scene, camera, renderer, video, sphereMaterial;
 let vr180Mesh, planeMesh, activeContentMesh;
 let xrSession = null;
 let raycaster, uiElements = [];
@@ -49,6 +47,7 @@ let frameCounter = 0;
 let isXrLoopActive = false;
 let vrControlPanel;
 let mediaController: MediaController | undefined;
+let textureManager: VideoTextureManager | undefined;
 let vrPanel: VrControlPanel | undefined;
 let twoDMode: TwoDMode | undefined;
 const vrPanelVisibility = new VrPanelVisibility();
@@ -57,82 +56,15 @@ const vrPanelVisibility = new VrPanelVisibility();
 let camera2D;
 let fallbackCameraControls: FallbackCameraControls | undefined;
 
-injectPlayerStyles(_playerBase);
-
-document.addEventListener('DOMContentLoaded', () => {
-	const containers = document.querySelectorAll(PLAYER_SELECTOR);
-	
-	if (containers.length === 0) {
-		console.error(`VR_WEB_PLAYER_DOM: Expected exactly one ${PLAYER_SELECTOR} container, found none.`);
-		return;
-	}
-
-	if (containers.length > 1) {
-		console.warn(`VR_WEB_PLAYER_DOM: This version supports exactly one ${PLAYER_SELECTOR} container per page. Found ${containers.length}; no player was initialized.`);
-		return;
-	}
-
-	playerContainer = containers[0];
-	playerContainer.classList.add('vrwp');
-
-	const configuredProjection = (playerContainer.dataset.projection || DEFAULT_PROJECTION).trim().toLowerCase();
-	if (!VALID_PROJECTIONS.has(configuredProjection as ProjectionMode)) {
-		console.error(`VR_WEB_PLAYER_CONFIG: Unsupported data-projection="${configuredProjection}". Use "vr180" or "plane".`);
-		return;
-	}
-	projectionMode = configuredProjection as ProjectionMode;
-
-	videoElement = playerContainer.querySelector('video');
-	if (!videoElement) {
-		console.error(`VR_WEB_PLAYER_DOM: ${PLAYER_SELECTOR} must contain a video element.`);
-		return;
-	}
-	videoElement.classList.add('vrwp-video');
-
-	// Create and insert play button
-	playBtn = createPlayButton();
-	playerContainer.appendChild(playBtn);
-
-	// Create and insert 2D control panel
-	const controlPanel = create2DControlPanel();
-	playerContainer.appendChild(controlPanel);
-
-	playBtn.disabled = true;
-	
-	if (videoElement) {
-		videoElement.load();
-	}
-
-	if (navigator.xr) {
-		navigator.xr.isSessionSupported('immersive-vr').then((supported) => {
-			if (supported) {
-				playBtn.dataset.xrSupported = "true";
-			} else {
-				playBtn.dataset.xrSupported = "false";
-				// Enable button for regular video playback when VR is not supported
-				playBtn.disabled = false;
-			}
-			// Always call init() regardless of VR support
-			init();
-		}).catch(err => {
-			console.error("XR Support Check Error:", err);
-			playBtn.dataset.xrSupported = "false";
-			// Enable button for regular video playback when VR check fails
-			playBtn.disabled = false;
-			// Call init() even when VR check fails
-			init();
-		});
-	} else {
-		playBtn.dataset.xrSupported = "false";
-		// If navigator.xr itself is not available, enable button for regular video playback
-		if (playBtn) {
-			playBtn.disabled = false;
-		}
-		// Call init() even when XR is not available
-		init();
-	}
+bootstrapPlayer(_playerBase, (context) => {
+	playerContainer = context.playerContainer;
+	projectionMode = context.projectionMode;
+	videoElement = context.videoElement;
+	playBtn = context.playButton;
+	init();
 });
 
+
 function applySbsTextureWindow(renderingRenderer, activeCamera, material) {
 	applySbsTextureWindowCore(renderingRenderer, activeCamera, material, is2DModeActive());
 }
@@ -150,9 +82,10 @@ function positionPlaneForPresentation(isFallback2D = false) {
 }
 
 function createVideoTexture() {
-	if (videoTexture) videoTexture.dispose();
-	videoTexture = createVideoTextureCore(video);
-	return videoTexture;
+	if (!textureManager) {
+		throw new Error('Video texture manager is not initialized.');
+	}
+	return textureManager.create();
 }
 
 function is2DModeActive() {
@@ -174,9 +107,7 @@ function closeActiveXrSessionAfterContextLoss() {
 
 function restoreVideoTextureAfterContextRestored() {
 	if (video && sphereMaterial && activeContentMesh && activeContentMesh.visible && renderer.xr.isPresenting && xrSession) {
-		videoTexture = createVideoTexture();
-		sphereMaterial.map = videoTexture;
-		sphereMaterial.needsUpdate = true;
+		textureManager?.assignToMaterial(sphereMaterial);
 		updateVRPlayPauseButtonIcon();
 		updateVRVolumeButtonIcon();
 		console.log("Re-initialized video texture after context restoration during VR.");
@@ -202,6 +133,7 @@ function init() {
 		renderer = playerRenderer.renderer;
 
 		video = videoElement;
+		textureManager = new VideoTextureManager(video, createVideoTextureCore);
 		mediaController = new MediaController({
 			is2DModeActive,
 			on2DPlaybackResume: show2DControlPanel,
@@ -502,17 +434,18 @@ async function actualSessionToggle() {
 			if (camera) camera.updateProjectionMatrix();
 			positionPlaneForPresentation(false);
 
-			if (videoTexture) { videoTexture.dispose(); videoTexture = null; }
-			if (video) {
-				videoTexture = createVideoTexture();
-				if (activeContentMesh && sphereMaterial) {
-					sphereMaterial.map = videoTexture;
-					sphereMaterial.needsUpdate = true;
-					showActiveContentMesh();
-				} else { throw new Error("VR mesh components not ready for texture."); }
-			} else {
+			textureManager?.dispose();
+			if (!video) {
 				throw new Error("Video element not available for creating texture.");
 			}
+			if (!activeContentMesh || !sphereMaterial) {
+				throw new Error("VR mesh components not ready for texture.");
+			}
+			if (!textureManager) {
+				throw new Error("Video texture manager is not initialized.");
+			}
+			textureManager.assignToMaterial(sphereMaterial);
+			showActiveContentMesh();
 
 			updateVRPlayPauseButtonIcon();
 			updateVRVolumeButtonIcon();
@@ -531,8 +464,7 @@ async function actualSessionToggle() {
 			isXrLoopActive = false;
 
 			hideContentMeshes();
-			if (sphereMaterial) { sphereMaterial.map = null; sphereMaterial.needsUpdate = true; }
-			if (videoTexture) { videoTexture.dispose(); videoTexture = null; }
+			textureManager?.clearMaterial(sphereMaterial);
 			if (vrControlPanel) {
 				vrPanelVisibility.hideImmediately();
 			}
@@ -570,14 +502,7 @@ function onVRSessionEnd(event) {
 
 	mediaController?.pauseIfPlaying();
 
-	if (sphereMaterial && sphereMaterial.map) {
-		sphereMaterial.map.dispose();
-		sphereMaterial.map = null;
-		sphereMaterial.needsUpdate = true;
-	}
-	if (videoTexture) {
-		videoTexture.dispose(); videoTexture = null;
-	}
+	textureManager?.clearMaterial(sphereMaterial);
 	hideContentMeshes();
 	if (vrControlPanel) {
 		vrPanelVisibility.hideImmediately();
@@ -633,10 +558,7 @@ function renderXR(timestamp, frame) {
 		}
 	}
 	try {
-		// Sync video texture before render to ensure frame consistency
-		if (videoTexture && video && !video.paused && !video.ended) {
-			videoTexture.needsUpdate = true;
-		}
+		textureManager?.updateIfPlaying();
 		renderer.render(scene, camera);
 	} catch (error) {
 		const renderErrorMsg = "ERROR_IN_RENDERXR_LOOP (F" + frameCounter + "): " + (error.message || String(error));