Defining a base theme, which can be overriden by derivative projects without

affecting launcher theme

Bug: 70220582
Change-Id: Ie3069686be5e6a42910e90541db2d6b5b79e25c1

5 files changed, 15 insertions, 8 deletions

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index b7c579391..3212980a0 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -56,7 +56,7 @@
         android:hardwareAccelerated="true"
         android:icon="@drawable/ic_launcher_home"
         android:label="@string/derived_app_name"
-        android:theme="@style/LauncherTheme"
+        android:theme="@style/AppTheme"
         android:largeHeap="@bool/config_largeHeap"
         android:restoreAnyVersion="true"
         android:supportsRtl="true" >
diff --git a/go/AndroidManifest.xml b/go/AndroidManifest.xml
index fbaf981d3..0a9ad7b5a 100644
--- a/go/AndroidManifest.xml
+++ b/go/AndroidManifest.xml
@@ -31,7 +31,7 @@
         android:hardwareAccelerated="true"
         android:icon="@drawable/ic_launcher_home"
         android:label="@string/derived_app_name"
-        android:theme="@style/LauncherTheme"
+        android:theme="@style/AppTheme"
         android:largeHeap="@bool/config_largeHeap"
         android:restoreAnyVersion="true"
         android:supportsRtl="true" >
diff --git a/res/values-v26/styles.xml b/res/values-v26/styles.xml
index b25f46a0c..e810ab251 100644
--- a/res/values-v26/styles.xml
+++ b/res/values-v26/styles.xml
@@ -21,7 +21,7 @@
     <style name="WidgetContainerTheme" parent="@android:style/Theme.DeviceDefault.Settings">
         <item name="android:colorEdgeEffect">?android:attr/textColorSecondary</item>
     </style>
-    <style name="WidgetContainerTheme.Dark" parent="LauncherThemeDark">
+    <style name="WidgetContainerTheme.Dark" parent="AppTheme.Dark">
         <item name="android:colorEdgeEffect">?android:attr/textColorSecondary</item>
         <item name="android:colorPrimaryDark">#616161</item> <!-- Gray 700 -->
     </style>
diff --git a/res/values/styles.xml b/res/values/styles.xml
index 31cbaa11a..0645f414f 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -56,7 +56,7 @@
         <item name="workspaceStatusBarScrim">@null</item>
     </style>
 
-    <style name="LauncherThemeDark" parent="@style/LauncherTheme">
+    <style name="LauncherTheme.Dark" parent="@style/LauncherTheme">
         <item name="android:textColorPrimary">#FFFFFFFF</item>
         <item name="android:textColorSecondary">#FFFFFFFF</item>
         <item name="android:textColorTertiary">#CCFFFFFF</item>
@@ -73,7 +73,7 @@
         <item name="isMainColorDark">true</item>
     </style>
 
-    <style name="LauncherThemeDark.DarKText" parent="@style/LauncherThemeDark">
+    <style name="LauncherTheme.Dark.DarkText" parent="@style/LauncherTheme.Dark">
         <item name="allAppsInterimScrimAlpha">25</item>
         <item name="workspaceTextColor">#FF212121</item>
         <item name="workspaceShadowColor">@android:color/transparent</item>
@@ -83,6 +83,13 @@
         <item name="workspaceStatusBarScrim">@null</item>
     </style>
 
+    <!-- A derivative project can extend these themes to customize the application theme without
+         affecting the base theme -->
+    <style name="AppTheme" parent="@style/LauncherTheme" />
+    <style name="AppTheme.DarkText" parent="@style/LauncherTheme.DarkText" />
+    <style name="AppTheme.Dark" parent="@style/LauncherTheme.Dark" />
+    <style name="AppTheme.Dark.DarkText" parent="@style/LauncherTheme.Dark.DarkText" />
+
     <!--
     Theme overrides to element on homescreen, i.e., which are drawn on top on wallpaper.
     Various foreground colors are overridden to be workspaceTextColor so that they are properly
diff --git a/src/com/android/launcher3/BaseDraggingActivity.java b/src/com/android/launcher3/BaseDraggingActivity.java
index 8af9acc24..eec196e1e 100644
--- a/src/com/android/launcher3/BaseDraggingActivity.java
+++ b/src/com/android/launcher3/BaseDraggingActivity.java
@@ -61,7 +61,7 @@ public abstract class BaseDraggingActivity extends BaseActivity
 
     private OnStartCallback mOnStartCallback;
 
-    private int mThemeRes = R.style.LauncherTheme;
+    private int mThemeRes = R.style.AppTheme;
 
     private DisplayRotationListener mRotationListener;
 
@@ -91,10 +91,10 @@ public abstract class BaseDraggingActivity extends BaseActivity
     protected int getThemeRes(WallpaperColorInfo wallpaperColorInfo) {
         if (wallpaperColorInfo.isDark()) {
             return wallpaperColorInfo.supportsDarkText() ?
-                    R.style.LauncherThemeDark_DarKText : R.style.LauncherThemeDark;
+                    R.style.AppTheme_Dark_DarkText : R.style.AppTheme_Dark;
         } else {
             return wallpaperColorInfo.supportsDarkText() ?
-                    R.style.LauncherTheme_DarkText : R.style.LauncherTheme;
+                    R.style.AppTheme_DarkText : R.style.AppTheme;
         }
     }