From ef02e3e5f4080a894650a550b1fa3d9e7bd7e8c1 Mon Sep 17 00:00:00 2001
From: Cole Faust <colefaust@google.com>
Date: Wed, 3 Feb 2021 14:43:58 -0800
Subject: [PATCH] Create ux restricted customizations for DeviceDefault buttons
 and switches

In automotive, onscreen components can be "ux restricted",
which means you can't use them at the moment for safety reasons,
for example while driving. Make DeviceDefaults buttons and
switches visually change to indicate to the user that they
are ux restricted.

Fixes: 178644245
Test: Manually
Change-Id: I5bccf4c0331fa496be9b90fb41381c9b674bf237
---
 .../car_borderless_button_text_color.xml      |  1 +
 core/res/res/color-car/car_switch_track.xml   | 27 +++++++++++++++++++
 .../drawable-car/car_button_background.xml    | 22 +++++++++++++++
 .../res/res/drawable-car/car_switch_track.xml |  2 +-
 core/res/res/values/attrs_car.xml             | 24 +++++++++++++++++
 5 files changed, 75 insertions(+), 1 deletion(-)
 create mode 100644 core/res/res/color-car/car_switch_track.xml
 create mode 100644 core/res/res/values/attrs_car.xml

diff --git a/core/res/res/color-car/car_borderless_button_text_color.xml b/core/res/res/color-car/car_borderless_button_text_color.xml
index 1cdd6cd901af2..0a86e4012e998 100644
--- a/core/res/res/color-car/car_borderless_button_text_color.xml
+++ b/core/res/res/color-car/car_borderless_button_text_color.xml
@@ -16,5 +16,6 @@ limitations under the License.
 <!-- Default text colors for car buttons when enabled/disabled. -->
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:color="@*android:color/car_grey_700" android:state_enabled="false"/>
+    <item android:color="@*android:color/car_grey_700" android:state_ux_restricted="true"/>
     <item android:color="?android:attr/colorButtonNormal"/>
 </selector>
diff --git a/core/res/res/color-car/car_switch_track.xml b/core/res/res/color-car/car_switch_track.xml
new file mode 100644
index 0000000000000..8ca67dd8dda90
--- /dev/null
+++ b/core/res/res/color-car/car_switch_track.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 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.
+-->
+<!-- copy of switch_track_material, but with a ux restricted state -->
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_enabled="false"
+          android:color="?attr/colorForeground"
+          android:alpha="?attr/disabledAlpha" />
+    <item android:state_ux_restricted="true"
+          android:color="?attr/colorForeground"
+          android:alpha="?attr/disabledAlpha" />
+    <item android:state_checked="true"
+          android:color="?attr/colorControlActivated" />
+    <item android:color="?attr/colorForeground" />
+</selector>
diff --git a/core/res/res/drawable-car/car_button_background.xml b/core/res/res/drawable-car/car_button_background.xml
index e568aebfe81d4..13b0ec13f3559 100644
--- a/core/res/res/drawable-car/car_button_background.xml
+++ b/core/res/res/drawable-car/car_button_background.xml
@@ -25,6 +25,22 @@ limitations under the License.
                     android:color="#0059B3"/>
         </shape>
     </item>
+    <item android:state_focused="true" android:state_pressed="true" android:state_ux_restricted="true">
+        <shape android:shape="rectangle">
+            <corners android:radius="@*android:dimen/car_button_radius"/>
+            <solid android:color="@*android:color/car_grey_300"/>
+            <stroke android:width="4dp"
+                    android:color="#0059B3"/>
+        </shape>
+    </item>
+    <item android:state_focused="true" android:state_ux_restricted="true">
+        <shape android:shape="rectangle">
+            <corners android:radius="@*android:dimen/car_button_radius"/>
+            <solid android:color="@*android:color/car_grey_300"/>
+            <stroke android:width="8dp"
+                    android:color="#0059B3"/>
+        </shape>
+    </item>
     <item android:state_focused="true" android:state_pressed="true">
         <shape android:shape="rectangle">
             <corners android:radius="@*android:dimen/car_button_radius"/>
@@ -47,6 +63,12 @@ limitations under the License.
             <solid android:color="@*android:color/car_grey_300"/>
         </shape>
     </item>
+    <item android:state_ux_restricted="true">
+        <shape android:shape="rectangle">
+            <corners android:radius="@*android:dimen/car_button_radius"/>
+            <solid android:color="@*android:color/car_grey_300"/>
+        </shape>
+    </item>
     <item>
         <ripple android:color="?android:attr/colorControlHighlight">
             <item>
diff --git a/core/res/res/drawable-car/car_switch_track.xml b/core/res/res/drawable-car/car_switch_track.xml
index cb0b9beeeab6f..51e9f7eb4ebc9 100644
--- a/core/res/res/drawable-car/car_switch_track.xml
+++ b/core/res/res/drawable-car/car_switch_track.xml
@@ -41,7 +41,7 @@
       android:right="@dimen/car_switch_track_margin_size">
     <shape
         android:shape="rectangle"
-        android:tint="@color/switch_track_material">
+        android:tint="@color/car_switch_track">
       <corners android:radius="7dp" />
       <solid android:color="@color/white_disabled_material" />
       <size android:height="14dp" />
diff --git a/core/res/res/values/attrs_car.xml b/core/res/res/values/attrs_car.xml
new file mode 100644
index 0000000000000..6bfea9728b696
--- /dev/null
+++ b/core/res/res/values/attrs_car.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 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.
+-->
+
+<!-- Formatting note: terminate all comments with a period, to avoid breaking
+     the documentation output. To suppress comment lines from the documentation
+     output, insert an eat-comment element after the comment lines.
+-->
+
+<resources>
+     <attr name="state_ux_restricted" format="boolean"/>
+</resources>