[Snackbar] Integrated tokens.

PiperOrigin-RevId: 492560860

lib/java/com/google/android/material/snackbar/res/values/styles.xml

@@ -80,7 +80,8 @@
     <item name="android:background">@null</item>
     <item name="android:layout_margin">@dimen/m3_snackbar_margin</item>
     <item name="animationMode">fade</item>
-    <item name="shapeAppearance">?attr/shapeAppearanceCornerExtraSmall</item>
+    <item name="shapeAppearance">@macro/m3_comp_snackbar_container_shape</item>
+    <item name="elevation">@dimen/m3_comp_snackbar_container_elevation</item>
   </style>
 
   <!-- Style for a full width M3 Snackbar. -->
@@ -90,8 +91,8 @@
 
   <style name="Widget.Material3.Snackbar.TextView" parent="Widget.MaterialComponents.Snackbar.TextView">
     <item name="android:alpha">@dimen/m3_snackbar_action_text_color_alpha</item>
-    <item name="android:textColor">?attr/colorOnSurfaceInverse</item>
-    <item name="android:textAppearance">?attr/textAppearanceBodyMedium</item>
+    <item name="android:textColor">@macro/m3_comp_snackbar_supporting_text_color</item>
+    <item name="android:textAppearance">@macro/m3_comp_snackbar_supporting_text_type</item>
   </style>
 
   <style name="ThemeOverlay.Material3.Snackbar" parent="">

lib/java/com/google/android/material/snackbar/res/values/tokens.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2022 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+-->
+<!-- AUTOGENERATED FILE. DO NOT MODIFY. -->
+<!-- Version: v0.147 -->
+
+<resources>
+
+  <!-- Generated from token set (md.comp.snackbar) in context (platform=android, audience=3p). -->
+  <!-- Enabled - Container -->
+  <dimen name="m3_comp_snackbar_container_elevation">@dimen/m3_sys_elevation_level3</dimen>
+  <macro name="m3_comp_snackbar_container_shape">?attr/shapeAppearanceCornerExtraSmall</macro>
+  <!-- Enabled - Supporting text -->
+  <macro name="m3_comp_snackbar_supporting_text_type">?attr/textAppearanceBodyMedium</macro>
+  <macro name="m3_comp_snackbar_supporting_text_color">?attr/colorOnSurfaceInverse</macro>
+
+</resources>

token_config.yaml

@@ -649,6 +649,27 @@ conversion_tasks:
       - md.comp.menu.list-item.with-leading-icon.(hover|focus|pressed).icon.color
       - md.comp.menu.list-item.with-trailing-icon.(hover|focus|pressed).icon.color
 
+  - # Snackbar component tokens.
+    token_sets: md.comp.snackbar
+    files:
+      - {input: tokens.jinja2, output: snackbar/res/values/tokens.xml}
+    suppressed_tokens:
+      # TODO(b/260628816) Container color is set programmatically.
+      - md.comp.snackbar.container.color
+      # TODO(b/260628816) Shadow color is not styleable.
+      - md.comp.snackbar.container.shadow-color
+      # TODO(b/260628816) Container height adapts to the contents.
+      - md.comp.snackbar.(with-single-line|with-two-lines).container.height
+      # TODO(b/260628816) Action text button style is defined in Button package.
+      - md.comp.snackbar.action.label-text.color
+      - md.comp.snackbar.action.(hover|focus|pressed).label-text.color
+      - md.comp.snackbar.action.(hover|focus|pressed).state-layer.(color|opacity)
+      - md.comp.snackbar.action.label-text.type
+      # TODO(b/260628816) No default close icon is implemented.
+      - md.comp.snackbar.icon.(color|size)
+      - md.comp.snackbar.icon.(hover|focus|pressed).icon.color
+      - md.comp.snackbar.icon.(hover|focus|pressed).state-layer.(color|opacity)
+
 # - # List component tokens.
     # TODO(b/260625883) No M3 styles for List.
     # token_sets: md.comp.list