chore: replace custom `window` management with `globalThis`

Co-authored-by: Copilot <copilot@github.com>

packages/svelte/src/compiler/types/index.d.ts

@@ -148,7 +148,7 @@ export interface CompileOptions extends ModuleCompileOptions {
 	 */
 	runes?: boolean | undefined | ((options: { filename: string }) => boolean | undefined);
 	/**
-	 *  If `true`, exposes the Svelte major version in the browser by adding it to a `Set` stored in the global `window.__svelte.v`.
+	 *  If `true`, exposes the Svelte major version in the browser by adding it to a `Set` stored in the global `globalThis.__svelte.v`.
 	 *
 	 * @default true
 	 */

packages/svelte/src/internal/client/custom-renderer/state.js

@@ -7,9 +7,6 @@
  */
 export let current_renderer = null;
 
-// allow for a "window" for each custom renderer...to use with `$props.id`
-export let custom_renderer_window_map = new WeakMap();
-
 /**
  * @param {Renderer<any, any, any, any> | null} value
  */

packages/svelte/src/internal/client/dom/operations.js

@@ -13,7 +13,7 @@ import {
 } from '#client/constants';
 import { eager_block_effects } from '../reactivity/batch.js';
 import { NAMESPACE_HTML } from '../../../constants.js';
-import { custom_renderer_window_map, current_renderer } from '../custom-renderer/state.js';
+import { current_renderer } from '../custom-renderer/state.js';
 
 // export these for reference in the compiled code, making global name deduplication unnecessary
 /** @type {Window} */
@@ -794,15 +794,3 @@ export function class_list_toggle(element, name, force) {
 	}
 	element.classList.toggle(name, force);
 }
-
-export function get_window() {
-	if (current_renderer) {
-		var custom_renderer_window = custom_renderer_window_map.get(current_renderer);
-		if (!custom_renderer_window) {
-			custom_renderer_window = {};
-			custom_renderer_window_map.set(current_renderer, custom_renderer_window);
-		}
-		return custom_renderer_window;
-	}
-	return window;
-}

packages/svelte/src/internal/client/dom/template.js

@@ -1,30 +1,12 @@
 /** @import { Effect, EffectNodes, TemplateNode } from '#client' */
 /** @import { TemplateStructure } from './types' */
-import { hydrate_next, hydrate_node, hydrating, set_hydrate_node } from './hydration.js';
 import {
-	create_text,
-	get_first_child,
-	get_next_sibling,
-	is_firefox,
-	create_element,
-	create_fragment,
-	create_comment,
-	set_attribute,
-	merge_text_nodes,
-	get_last_child,
-	import_node,
-	clone_node,
-	append_child,
-	insert_before,
-	set_text_content,
-	replace_with,
-	node_type,
-	get_node_value,
-	node_name,
-	get_window
-} from './operations.js';
-import { create_fragment_from_html } from './reconciler.js';
-import { active_effect } from '../runtime.js';
+	COMMENT_NODE,
+	DOCUMENT_FRAGMENT_NODE,
+	IS_XHTML,
+	REACTION_RAN,
+	TEXT_NODE
+} from '#client/constants';
 import {
 	NAMESPACE_MATHML,
 	NAMESPACE_SVG,
@@ -33,14 +15,30 @@ import {
 	TEMPLATE_USE_MATHML,
 	TEMPLATE_USE_SVG
 } from '../../../constants.js';
-import {
-	COMMENT_NODE,
-	DOCUMENT_FRAGMENT_NODE,
-	IS_XHTML,
-	REACTION_RAN,
-	TEXT_NODE
-} from '#client/constants';
 import { current_renderer } from '../custom-renderer/state.js';
+import { active_effect } from '../runtime.js';
+import { hydrate_next, hydrate_node, hydrating, set_hydrate_node } from './hydration.js';
+import {
+	append_child,
+	clone_node,
+	create_comment,
+	create_element,
+	create_fragment,
+	create_text,
+	get_first_child,
+	get_last_child,
+	get_node_value,
+	import_node,
+	insert_before,
+	is_firefox,
+	merge_text_nodes,
+	node_name,
+	node_type,
+	replace_with,
+	set_attribute,
+	set_text_content
+} from './operations.js';
+import { create_fragment_from_html } from './reconciler.js';
 
 const TEMPLATE_TAG = IS_XHTML ? 'template' : 'TEMPLATE';
 const SCRIPT_TAG = IS_XHTML ? 'script' : 'SCRIPT';
@@ -418,10 +416,7 @@ export function props_id() {
 		return id;
 	}
 
-	let window = get_window();
-
-	// This way we ensure the id is unique even across Svelte runtimes
-	(window.__svelte ??= {}).uid ??= 1;
+	/**@type {*}*/ (globalThis.__svelte ??= {}).uid ??= 1;
 
-	return `c${window.__svelte.uid++}`;
+	return `c${/**@type {*}*/ (globalThis.__svelte).uid++}`;
 }

packages/svelte/src/internal/disclose-version.js

@@ -2,5 +2,5 @@ import { PUBLIC_VERSION } from '../version.js';
 
 if (typeof window !== 'undefined') {
 	// @ts-expect-error
-	((window.__svelte ??= {}).v ??= new Set()).add(PUBLIC_VERSION);
+	((globalThis.__svelte ??= {}).v ??= new Set()).add(PUBLIC_VERSION);
 }

packages/svelte/types/index.d.ts

@@ -1105,7 +1105,7 @@ declare module 'svelte/compiler' {
 		 */
 		runes?: boolean | undefined | ((options: { filename: string }) => boolean | undefined);
 		/**
-		 *  If `true`, exposes the Svelte major version in the browser by adding it to a `Set` stored in the global `window.__svelte.v`.
+		 *  If `true`, exposes the Svelte major version in the browser by adding it to a `Set` stored in the global `globalThis.__svelte.v`.
 		 *
 		 * @default true
 		 */
@@ -3398,7 +3398,7 @@ declare module 'svelte/types/compiler/interfaces' {
 		 */
 		runes?: boolean | undefined | ((options: { filename: string }) => boolean | undefined);
 		/**
-		 *  If `true`, exposes the Svelte major version in the browser by adding it to a `Set` stored in the global `window.__svelte.v`.
+		 *  If `true`, exposes the Svelte major version in the browser by adding it to a `Set` stored in the global `globalThis.__svelte.v`.
 		 *
 		 * @default true
 		 */