[M3][Button] Update padding to match specs

PiperOrigin-RevId: 410823046
(cherry picked from commit f028380)

Author: paulfthomas

lib/java/com/google/android/material/button/res/values/dimens.xml

@@ -55,13 +55,17 @@
   <dimen name="m3_btn_inset">4dp</dimen>
   <dimen name="m3_btn_max_width">320dp</dimen>
   <dimen name="m3_btn_stroke_size">1dp</dimen>
-  <dimen name="m3_btn_padding_left">16dp</dimen>
+  <dimen name="m3_btn_padding_left">24dp</dimen>
+  <dimen name="m3_btn_padding_right">24dp</dimen>
   <dimen name="m3_btn_padding_top">6dp</dimen>
-  <dimen name="m3_btn_padding_right">16dp</dimen>
   <dimen name="m3_btn_padding_bottom">6dp</dimen>
   <dimen name="m3_btn_elevated_btn_elevation">1dp</dimen>
   <dimen name="m3_btn_icon_btn_padding_left">16dp</dimen>
   <dimen name="m3_btn_icon_btn_padding_right">24dp</dimen>
+  <dimen name="m3_btn_text_btn_padding_left">12dp</dimen>
+  <dimen name="m3_btn_text_btn_padding_right">12dp</dimen>
+  <dimen name="m3_btn_text_btn_icon_padding_left">12dp</dimen>
+  <dimen name="m3_btn_text_btn_icon_padding_right">16dp</dimen>
   <dimen name="m3_btn_icon_only_default_padding">10dp</dimen>
   <dimen name="m3_btn_icon_only_min_width">20dp</dimen>
   <dimen name="m3_btn_icon_only_default_size">20dp</dimen>

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

@@ -125,6 +125,8 @@
   <!-- M3 filled button style. -->
   <style name="Widget.Material3.Button" parent="Widget.MaterialComponents.Button">
     <item name="android:maxWidth">@dimen/m3_btn_max_width</item>
+    <item name="android:paddingLeft">@dimen/m3_btn_padding_left</item>
+    <item name="android:paddingRight">@dimen/m3_btn_padding_right</item>
     <item name="android:paddingTop">@dimen/m3_btn_padding_top</item>
     <item name="android:paddingBottom">@dimen/m3_btn_padding_bottom</item>
     <item name="android:insetTop">@dimen/m3_btn_inset</item>
@@ -172,6 +174,8 @@
   <!-- M3 text button style. -->
   <style name="Widget.Material3.Button.TextButton" parent="Widget.MaterialComponents.Button.TextButton">
     <item name="android:maxWidth">@dimen/m3_btn_max_width</item>
+    <item name="android:paddingLeft">@dimen/m3_btn_text_btn_padding_left</item>
+    <item name="android:paddingRight">@dimen/m3_btn_text_btn_padding_right</item>
     <item name="android:paddingTop">@dimen/m3_btn_padding_top</item>
     <item name="android:paddingBottom">@dimen/m3_btn_padding_bottom</item>
     <item name="android:insetTop">@dimen/m3_btn_inset</item>
@@ -187,7 +191,8 @@
 
   <!-- M3 text button with a start-gravity icon style. -->
   <style name="Widget.Material3.Button.TextButton.Icon">
-    <!-- Text buttons have the same padding even when an icon is present -->
+    <item name="android:paddingLeft">@dimen/m3_btn_text_btn_icon_padding_left</item>
+    <item name="android:paddingRight">@dimen/m3_btn_text_btn_icon_padding_right</item>
   </style>
 
   <!-- M3 button style to show in the Dialog component.  -->
@@ -207,7 +212,8 @@
 
   <!-- M3 button with a start-gravity icon style to show in the Dialog component. -->
   <style name="Widget.Material3.Button.TextButton.Dialog.Icon">
-    <!-- Dialog text buttons have the same padding even when an icon is present -->
+    <item name="android:paddingLeft">@dimen/m3_btn_text_btn_icon_padding_left</item>
+    <item name="android:paddingRight">@dimen/m3_btn_text_btn_icon_padding_right</item>
   </style>
 
   <!-- M3 button style to show in the Snackbar component. -->