pa: Ship Google Sans font family as overlay

This adds support for custom fonts starting with Google Sans, making it an opt-in overlay

Change-Id: Id281d447d9d581c408196abd16b8fed60b6682f8

config/common.mk

@@ -78,6 +78,11 @@ PRODUCT_COPY_FILES += \
     vendor/pa/config/permissions/privapp-permissions-pa-system.xml:$(TARGET_COPY_OUT_SYSTEM)/etc/permissions/privapp-permissions-pa.xml \
     vendor/pa/config/permissions/privapp-permissions-pa-product.xml:$(TARGET_COPY_OUT_PRODUCT)/etc/permissions/privapp-permissions-pa.xml
 
+# Fonts
+PRODUCT_COPY_FILES += \
+    $(call find-copy-subdir-files,*,vendor/pa/prebuilt/fonts,$(TARGET_COPY_OUT_PRODUCT)/fonts) \
+	vendor/pa/prebuilt/etc/fonts_customization.xml:$(TARGET_COPY_OUT_PRODUCT)/etc/fonts_customization.xml
+
 # Enforce privapp-permissions whitelist
 PRODUCT_SYSTEM_DEFAULT_PROPERTIES += \
     ro.control_privapp_permissions=enforce

overlay/packages/Android.mk

@@ -18,7 +18,8 @@ include $(CLEAR_VARS)
 LOCAL_MODULE := pa-overlays
 LOCAL_REQUIRED_MODULES := \
     AccentColorPixelBlueOverlay \
-    AccentColorTealOverlay
+    AccentColorTealOverlay \
+	FontGoogleSansOverlay
 
 include $(BUILD_PHONY_PACKAGE)
 include $(call first-makefiles-under,$(LOCAL_PATH))

overlay/packages/FontGoogleSansOverlay/Android.mk

@@ -0,0 +1,31 @@
+#
+#  Copyright 2019, 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.
+#
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_RRO_THEME := FontGoogleSans
+
+LOCAL_PRODUCT_MODULE := true
+
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+
+LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res
+
+LOCAL_PACKAGE_NAME := FontGoogleSansOverlay
+LOCAL_SDK_VERSION := current
+
+include $(BUILD_RRO_PACKAGE)

overlay/packages/FontGoogleSansOverlay/AndroidManifest.xml

@@ -0,0 +1,31 @@
+<!--
+/**
+ * Copyright (c) 2019, 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.
+ */
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.theme.font.googlesans"
+    android:versionCode="1"
+    android:versionName="1.0">
+    <overlay android:targetPackage="android"
+        android:category="android.theme.customization.font"
+        android:priority="1"/>
+
+    <application android:label="@string/font_google_sans_overlay" android:hasCode="false">
+        <meta-data
+            android:name="android.theme.customization.REQUIRED_SYSTEM_FONTS"
+            android:value="google-sans,google-sans-medium" />
+    </application>
+</manifest>

overlay/packages/FontGoogleSansOverlay/res/values/config.xml

@@ -0,0 +1,25 @@
+<!--
+/**
+ * Copyright (c) 2019, 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.
+ */
+-->
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+	<!-- Name of a font family to use for headlines. If empty, falls back to platform default -->
+	<string name="config_headlineFontFamily">google-sans</string>
+	<!-- Name of the font family used for system surfaces where the font should use medium weight -->
+    <string name="config_headlineFontFamilyMedium">google-sans-medium</string>
+    <string name="config_headlineFontFeatureSettings">ss03</string>
+</resources>
+

overlay/packages/FontGoogleSansOverlay/res/values/strings.xml

@@ -0,0 +1,21 @@
+<!--
+/**
+ * Copyright (c) 2019, 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.
+ */
+-->
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <!-- Headline / Google Sans overlay -->
+    <string name="font_google_sans_overlay" translatable="false">Google Sans</string>
+</resources>

prebuilt/etc/fonts_customization.xml

@@ -0,0 +1,11 @@
+<fonts-modification version="1">
+    <family customizationType="new-named-family" name="google-sans">
+        <font weight="400" style="normal">GoogleSans-Regular.ttf</font>
+        <font weight="400" style="italic">GoogleSans-Italic.ttf</font>
+        <font weight="500" style="normal">GoogleSans-Medium.ttf</font>
+        <font weight="500" style="italic">GoogleSans-MediumItalic.ttf</font>
+        <font weight="700" style="normal">GoogleSans-Bold.ttf</font>
+        <font weight="700" style="italic">GoogleSans-BoldItalic.ttf</font>
+    </family>
+    <alias name="google-sans-medium" to="google-sans" weight="500" />
+</fonts-modification>