[V2 Snackbar] Added Elevation Tokens to Snackbar

[Dhruv-Mishra]

Changes

Added Elevation and Shadow to Fluent Snackbar V2

Screenshots

Before	After

Pull request checklist

This PR has considered:

• Light and Dark appearances
• Automated Tests
• Documentation and demo app examples
• VoiceOver and Keyboard Accessibility
• Internationalization and RTL layouts
• Size classes and window sizes (notched devices, multitasking, different window sizes, etc)

[Copilot]

Pull Request Overview

Adds elevation and shadow to the Fluent Snackbar component by introducing a new token for elevation values and applying a shadow modifier in the composable.

• Imported shadow API and applied .shadow() to the Snackbar container
• Introduced shadowElevationValue token mapping each SnackbarStyle to a Dp elevation
• Added corresponding method in SnackBarTokens and updated imports

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
fluentui_notification/src/main/java/com/microsoft/fluentui/tokenized/notification/Snackbar.kt	Imported shadow API, retrieved elevation from token, and applied .shadow() modifier
fluentui_core/src/main/java/com/microsoft/fluentui/theme/token/controlTokens/SnackbarTokens.kt	Added shadowElevationValue composable method mapping styles to Dp elevations

Comments suppressed due to low confidence (2)

fluentui_core/src/main/java/com/microsoft/fluentui/theme/token/controlTokens/SnackbarTokens.kt:95

• [nitpick] Add KDoc to shadowElevationValue explaining its purpose and detailing elevation values for each SnackbarStyle.

@Composable

fluentui_core/src/main/java/com/microsoft/fluentui/theme/token/controlTokens/SnackbarTokens.kt:96

• Add automated tests for shadowElevationValue to ensure each SnackbarStyle returns the correct elevation.

open fun shadowElevationValue(snackBarInfo: SnackBarInfo): Dp {

[joyeeta26]

should we have common shadow for all styles ?