Avoid global window access in Soma helpers

src/uix/soma/components/announce/announce-provider.svelte.ts

@@ -78,7 +78,11 @@ export class AnnounceProvider {
 	}
 
 	announce = (message: string, priority: AnnouncePriority = 'polite', timeout?: number): void => {
-		if (typeof window === 'undefined') return;
+		try {
+			this.soma.dom.getDocument(this.opts.ref?.current);
+		} catch {
+			return;
+		}
 		const clearAfter = timeout ?? this.opts.defaultTimeout.current;
 
 		if (priority === 'assertive') {

src/uix/soma/components/color-picker/color-picker-provider.svelte.ts

@@ -1262,10 +1262,18 @@ export class ColorPickerEyeDropperProvider {
 		});
 	}
 
-	readonly isSupported: boolean =
-		typeof window !== 'undefined' &&
-		'EyeDropper' in window &&
-		typeof (window as unknown as { EyeDropper: unknown }).EyeDropper === 'function';
+	private get eyeDropperCtor(): (new () => EyeDropperLike) | undefined {
+		let win: Window;
+		try {
+			win = this.provider.soma.dom.getWindow(this.opts.ref.current);
+		} catch {
+			return undefined;
+		}
+		const candidate = (win as unknown as { EyeDropper?: unknown }).EyeDropper;
+		return typeof candidate === 'function' ? (candidate as new () => EyeDropperLike) : undefined;
+	}
+
+	readonly isSupported = $derived.by(() => this.eyeDropperCtor !== undefined);
 
 	readonly resolvedLabel = $derived.by(
 		() => this.opts.ariaLabel.current ?? this.provider.langs(COLOR_PICKER_LANGS.EYE_DROPPER)
@@ -1274,7 +1282,8 @@ export class ColorPickerEyeDropperProvider {
 	readonly onclick = async () => {
 		if (!this.isSupported || this.provider.isDisabled || this.provider.isReadonly) return;
 		try {
-			const Ctor = (window as unknown as { EyeDropper: new () => EyeDropperLike }).EyeDropper;
+			const Ctor = this.eyeDropperCtor;
+			if (!Ctor) return;
 			const picker = new Ctor();
 			const { sRGBHex } = await picker.open();
 			const hsv = parseColor(sRGBHex);

src/uix/soma/layers/floating/utils.ts

@@ -1,8 +1,8 @@
 // ─── DPR ─────────────────────────────────────────────────────────────────────
 
 export function getDPR(element: Element): number {
-	if (typeof window === 'undefined') return 1;
-	const win = element.ownerDocument.defaultView ?? window;
+	const win = element.ownerDocument.defaultView;
+	if (!win) return 1;
 	return win.devicePixelRatio || 1;
 }