Began implementation of Dialer dark theme.

 - README on how to properly theme Dialer going forward.
 - Migrated all widgets to use global colors.
 - Removed all activity and application themes where it wasn't necessary.
 - Added themeing test rule for Espresso tests.

Bug: 79883035
Test: tap
PiperOrigin-RevId: 197634256
Change-Id: I4b7d94d45aeeb59d484b0069fdd1e200a654910b

6 files changed, 409 insertions, 0 deletions

diff --git a/java/com/android/dialer/theme/base/AndroidManifest.xml b/java/com/android/dialer/theme/base/AndroidManifest.xml
new file mode 100644
index 000000000..ff7891055
--- /dev/null
+++ b/java/com/android/dialer/theme/base/AndroidManifest.xml
@@ -0,0 +1,16 @@
+<!--
+  ~ Copyright (C) 2018 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 package="com.android.dialer.theme.base"/>
diff --git a/java/com/android/dialer/theme/base/ThemeUtil.java b/java/com/android/dialer/theme/base/ThemeUtil.java
new file mode 100644
index 000000000..a2d70c951
--- /dev/null
+++ b/java/com/android/dialer/theme/base/ThemeUtil.java
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2018 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.
+ */
+
+package com.android.dialer.theme.base;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.support.annotation.ColorInt;
+import android.support.annotation.IntDef;
+import android.support.annotation.StyleRes;
+import android.view.ContextThemeWrapper;
+import android.view.LayoutInflater;
+import com.android.dialer.common.Assert;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/** Utility for fetching */
+@SuppressWarnings("unused")
+public class ThemeUtil {
+
+  /** IntDef for the different themes Dialer supports. */
+  @Retention(RetentionPolicy.SOURCE)
+  @IntDef({UNKNOWN, LIGHT, DARK})
+  public @interface Theme {}
+
+  public static final int UNKNOWN = 0;
+  public static final int LIGHT = 1;
+  public static final int DARK = 2;
+
+  private static @Theme int theme = UNKNOWN;
+
+  private static int colorIcon = -1;
+  private static int colorIconSecondary = -1;
+  private static int colorPrimary = -1;
+  private static int colorPrimaryDark = -1;
+  private static int colorAccent = -1;
+  private static int textColorPrimary = -1;
+  private static int textColorSecondary = -1;
+  private static int textColorPrimaryInverse = -1;
+  private static int textColorHint = -1;
+  private static int colorBackground = -1;
+  private static int colorBackgroundFloating = -1;
+  private static int colorTextOnUnthemedDarkBackground = -1;
+  private static int colorIconOnUnthemedDarkBackground = -1;
+
+  public static void initializeTheme(Context context) {
+    // TODO(a bug): add share prefs check to configure this
+    theme = LIGHT;
+
+    context = context.getApplicationContext();
+    context.setTheme(getApplicationThemeRes());
+    TypedArray array =
+        context
+            .getTheme()
+            .obtainStyledAttributes(
+                getApplicationThemeRes(),
+                new int[] {
+                  android.R.attr.colorPrimary,
+                  android.R.attr.colorPrimaryDark,
+                  android.R.attr.colorAccent,
+                  android.R.attr.textColorPrimary,
+                  android.R.attr.textColorSecondary,
+                  android.R.attr.textColorPrimaryInverse,
+                  android.R.attr.textColorHint,
+                  android.R.attr.colorBackground,
+                  android.R.attr.colorBackgroundFloating,
+                  R.attr.colorIcon,
+                  R.attr.colorIconSecondary,
+                  R.attr.colorTextOnUnthemedDarkBackground,
+                  R.attr.colorIconOnUnthemedDarkBackground,
+                });
+    colorPrimary = array.getColor(/* index= */ 0, /* defValue= */ -1);
+    colorPrimaryDark = array.getColor(/* index= */ 1, /* defValue= */ -1);
+    colorAccent = array.getColor(/* index= */ 2, /* defValue= */ -1);
+    textColorPrimary = array.getColor(/* index= */ 3, /* defValue= */ -1);
+    textColorSecondary = array.getColor(/* index= */ 4, /* defValue= */ -1);
+    textColorPrimaryInverse = array.getColor(/* index= */ 5, /* defValue= */ -1);
+    textColorHint = array.getColor(/* index= */ 6, /* defValue= */ -1);
+    colorBackground = array.getColor(/* index= */ 7, /* defValue= */ -1);
+    colorBackgroundFloating = array.getColor(/* index= */ 8, /* defValue= */ -1);
+    colorIcon = array.getColor(/* index= */ 9, /* defValue= */ -1);
+    colorIconSecondary = array.getColor(/* index= */ 10, /* defValue= */ -1);
+    colorTextOnUnthemedDarkBackground = array.getColor(/* index= */ 11, /* defValue= */ -1);
+    colorIconOnUnthemedDarkBackground = array.getColor(/* index= */ 12, /* defValue= */ -1);
+    array.recycle();
+  }
+
+  /**
+   * Returns the {@link Theme} that the application is using. Activities should check this value if
+   * their custom style needs to customize further based on the application theme.
+   */
+  public static @Theme int getTheme() {
+    Assert.checkArgument(theme != UNKNOWN);
+    return theme;
+  }
+
+  public static @StyleRes int getApplicationThemeRes() {
+    switch (theme) {
+      case DARK:
+        return R.style.Dialer_Dark_ThemeBase_NoActionBar;
+      case LIGHT:
+        return R.style.Dialer_ThemeBase_NoActionBar;
+      case UNKNOWN:
+      default:
+        throw Assert.createIllegalStateFailException("Theme hasn't been set yet.");
+    }
+  }
+
+  public static Context getThemedContext(Context context) {
+    return new ContextThemeWrapper(context, getApplicationThemeRes());
+  }
+
+  public static LayoutInflater getThemedLayoutInflator(LayoutInflater inflater) {
+    return inflater.cloneInContext(getThemedContext(inflater.getContext()));
+  }
+
+  public static @ColorInt int getColorIcon() {
+    Assert.checkArgument(colorIcon != -1);
+    return colorIcon;
+  }
+
+  public static @ColorInt int getColorIconSecondary() {
+    Assert.checkArgument(colorIconSecondary != -1);
+    return colorIconSecondary;
+  }
+
+  public static @ColorInt int getColorPrimary() {
+    Assert.checkArgument(colorPrimary != -1);
+    return colorPrimary;
+  }
+
+  public static @ColorInt int getColorAccent() {
+    Assert.checkArgument(colorAccent != -1);
+    return colorAccent;
+  }
+
+  public static @ColorInt int getTextColorSecondary() {
+    Assert.checkArgument(textColorSecondary != -1);
+    return textColorSecondary;
+  }
+
+  public static @ColorInt int getTextColorPrimary() {
+    Assert.checkArgument(textColorPrimary != -1);
+    return textColorPrimary;
+  }
+
+  public static @ColorInt int getColorTextOnUnthemedDarkBackground() {
+    Assert.checkArgument(colorTextOnUnthemedDarkBackground != -1);
+    return colorTextOnUnthemedDarkBackground;
+  }
+
+  public static @ColorInt int getColorIconOnUnthemedDarkBackground() {
+    Assert.checkArgument(colorIconOnUnthemedDarkBackground != -1);
+    return colorIconOnUnthemedDarkBackground;
+  }
+}
diff --git a/java/com/android/dialer/theme/base/res/values/attr.xml b/java/com/android/dialer/theme/base/res/values/attr.xml
new file mode 100644
index 000000000..41c6225ad
--- /dev/null
+++ b/java/com/android/dialer/theme/base/res/values/attr.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2018 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>
+  <!-- Used to style all icons in Dialer. -->
+  <attr name="colorIcon" format="color"/>
+  <!-- Used to style some icons a little lighter in Dialer. -->
+  <attr name="colorIconSecondary" format="color"/>
+  <!-- Used to color text on dark backgrounds. White in Light Theme. -->
+  <attr name="colorTextOnUnthemedDarkBackground" format="color"/>
+  <!-- Used to color icons on dark backgrounds. White in Light Theme. -->
+  <attr name="colorIconOnUnthemedDarkBackground" format="color"/>
+</resources>
\ No newline at end of file
diff --git a/java/com/android/dialer/theme/base/res/values/styles_dialer_light.xml b/java/com/android/dialer/theme/base/res/values/styles_dialer_light.xml
new file mode 100644
index 000000000..cfdee7801
--- /dev/null
+++ b/java/com/android/dialer/theme/base/res/values/styles_dialer_light.xml
@@ -0,0 +1,53 @@
+<!--
+  ~ Copyright (C) 2012 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>
+  <!-- TODO(a bug): properly document this or delete it -->
+  <!-- We don't want to style this, need to discuss with Yen why this was used instead of a default theme -->
+  <style name="Theme.PreCall.DialogHolder" parent="Dialer.ThemeBase.NoActionBar">
+    <item name="android:windowBackground">@android:color/transparent</item>
+    <item name="android:windowActivityTransitions">false</item>
+    <item name="android:windowIsTranslucent">true</item>
+
+    <item name="android:statusBarColor">@android:color/transparent</item>
+    <item name="android:navigationBarColor">@android:color/transparent</item>
+    <item name="android:windowDrawsSystemBarBackgrounds">true</item>
+  </style>
+
+  <!-- Style applied to the "Settings" screen.  Keep in sync with SettingsLight in Telephony. -->
+  <style name="SettingsStyle" parent="Dialer.ThemeBase.ActionBar">
+    <!-- Setting text. -->
+    <item name="android:textColorPrimary">@color/settings_text_color_primary</item>
+    <!-- Setting description. -->
+    <item name="android:textColorSecondary">@color/settings_text_color_secondary</item>
+    <item name="android:windowBackground">?android:attr/colorBackground</item>
+    <item name="android:colorAccent">?android:attr/colorPrimary</item>
+    <item name="android:textColorLink">?android:attr/colorPrimary</item>
+  </style>
+
+  <!-- TODO(a bug): This is only actively used in empty_content_view.xml. Move it there. -->
+  <style name="TextActionStyle">
+    <item name="android:layout_width">wrap_content</item>
+    <item name="android:layout_height">@dimen/call_log_action_height</item>
+    <item name="android:gravity">end|center_vertical</item>
+    <item name="android:paddingStart">@dimen/call_log_action_horizontal_padding</item>
+    <item name="android:paddingEnd">@dimen/call_log_action_horizontal_padding</item>
+    <item name="android:textColor">?android:attr/colorPrimary</item>
+    <item name="android:fontFamily">sans-serif-medium</item>
+    <item name="android:focusable">true</item>
+    <item name="android:singleLine">true</item>
+    <item name="android:textAllCaps">true</item>
+  </style>
+</resources>
diff --git a/java/com/android/dialer/theme/base/res/values/theme_dialer_dark.xml b/java/com/android/dialer/theme/base/res/values/theme_dialer_dark.xml
new file mode 100644
index 000000000..e01a3a282
--- /dev/null
+++ b/java/com/android/dialer/theme/base/res/values/theme_dialer_dark.xml
@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2018 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>
+  <!-- Deprecated: ActionBars are clunky and Toolbar (along with Dialer.ThemeBase.NoActionBar)
+      should be used in favor-->
+  <style name="Dialer.Dark.ThemeBase.ActionBar">
+    <!-- These are used to style all actionbars in Dialer. These aren't needed in Dialer.ThemeBase.NoActionBar -->
+    <item name="actionBarStyle">@style/DialerActionBarBaseStyle</item>
+    <item name="actionBarSize">@dimen/action_bar_height</item>
+  </style>
+
+  <style name="Dialer.Dark.ThemeBase.NoActionBar">
+    <!-- Copied from Theme.AppCompat.Light.NoActionBar. We can remove this and update the Dialer
+        base style once none of our activities depend on ActionBar anymore. -->
+    <item name="windowActionBar">false</item>
+    <item name="windowNoTitle">true</item>
+  </style>
+
+  <!-- Activities and Applications should inherit from one of the themes above. -->
+  <style name="Dialer.Dark.ThemeBase">
+    <!-- These values should be used to color all backgrounds. -->
+    <item name="android:colorBackground">@color/dialer_dark_background</item>
+    <item name="android:colorBackgroundFloating">@color/dialer_dark_background_floating</item>
+
+    <!-- These values should be used to set text color. -->
+    <!-- swap text colors. -->
+    <item name="android:textColorPrimary">@color/dialer_primary_text_color_inverse</item>
+    <item name="android:textColorSecondary">@color/dialer_secondary_text_color_inverse</item>
+    <item name="android:textColorPrimaryInverse">@color/dialer_primary_text_color</item>
+    <item name="android:textColorSecondaryInverse">@color/dialer_secondary_text_color</item>
+    <item name="android:textColorHint">@color/dialer_text_hint_color</item>
+
+    <!-- These will be automatically used to color most Appcompat/Material widgets. -->
+    <item name="android:colorPrimary">@color/dialer_theme_color</item>
+    <item name="colorPrimary">@color/dialer_theme_color</item>
+    <item name="android:colorPrimaryDark">@color/dialer_theme_color_dark</item>
+    <item name="colorPrimaryDark">@color/dialer_theme_color_dark</item>
+    <item name="android:colorAccent">@color/dialer_secondary_color</item>
+    <item name="colorAccent">@color/dialer_secondary_color</item>
+
+    <!-- Used to automatically style check/selected checkbox, switches and radio buttons -->
+    <item name="colorControlActivated">?android:attr/colorPrimary</item>
+
+    <!-- Dialer specific attributes. -->
+    <item name="colorIcon">?android:attr/textColorSecondary</item>
+    <item name="colorIconSecondary">?android:attr/textColorSecondary</item>
+    <item name="colorTextOnUnthemedDarkBackground">@color/dialer_primary_text_color_inverse</item>
+    <item name="colorIconOnUnthemedDarkBackground">@color/dialer_icon_color_white</item>
+  </style>
+</resources>
\ No newline at end of file
diff --git a/java/com/android/dialer/theme/base/res/values/theme_dialer_light.xml b/java/com/android/dialer/theme/base/res/values/theme_dialer_light.xml
new file mode 100644
index 000000000..667b9726d
--- /dev/null
+++ b/java/com/android/dialer/theme/base/res/values/theme_dialer_light.xml
@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2018 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>
+  <!-- Deprecated: ActionBars are clunky and Toolbar (along with Dialer.ThemeBase.NoActionBar)
+      should be used in favor-->
+  <style name="Dialer.ThemeBase.ActionBar">
+    <!-- These are used to style all actionbars in Dialer. These aren't needed in Dialer.ThemeBase.NoActionBar -->
+    <item name="actionBarStyle">@style/DialerActionBarBaseStyle</item>
+    <item name="actionBarSize">@dimen/action_bar_height</item>
+  </style>
+
+  <style name="Dialer.ThemeBase.NoActionBar">
+    <!-- Copied from Theme.AppCompat.Light.NoActionBar. We can remove this and update the Dialer
+        base style once none of our activities depend on ActionBar anymore. -->
+    <item name="windowActionBar">false</item>
+    <item name="windowNoTitle">true</item>
+  </style>
+
+  <!-- Activities and Applications should inherit from one of the themes above. -->
+  <style name="Dialer.ThemeBase">
+    <!-- These values should be used to color all backgrounds. -->
+    <item name="android:colorBackground">@color/dialer_background_light</item>
+    <item name="android:colorBackgroundFloating">@color/dialer_background_floating_light</item>
+
+    <!-- These values should be used to set text color. -->
+    <item name="android:textColorPrimary">@color/dialer_primary_text_color</item>
+    <item name="android:textColorSecondary">@color/dialer_secondary_text_color</item>
+    <item name="android:textColorPrimaryInverse">@color/dialer_primary_text_color_inverse</item>
+    <item name="android:textColorSecondaryInverse">@color/dialer_secondary_text_color_inverse</item>
+    <item name="android:textColorHint">@color/dialer_text_hint_color</item>
+
+    <!-- These will be automatically used to color most Appcompat/Material widgets. -->
+    <item name="android:colorPrimary">@color/dialer_theme_color</item>
+    <item name="colorPrimary">@color/dialer_theme_color</item>
+    <item name="android:colorPrimaryDark">@color/dialer_theme_color_dark</item>
+    <item name="colorPrimaryDark">@color/dialer_theme_color_dark</item>
+    <item name="android:colorAccent">@color/dialer_secondary_color</item>
+    <item name="colorAccent">@color/dialer_secondary_color</item>
+
+    <!-- Used to automatically style check/selected checkbox, switches and radio buttons -->
+    <item name="colorControlActivated">?android:attr/colorPrimary</item>
+
+    <!-- Dialer specific attributes. -->
+    <item name="colorIcon">@color/dialer_secondary_text_color</item>
+    <item name="colorIconSecondary">@color/dialer_icon_color_secondary</item>
+    <item name="colorTextOnUnthemedDarkBackground">@color/dialer_primary_text_color_inverse</item>
+    <item name="colorIconOnUnthemedDarkBackground">@color/dialer_icon_color_white</item>
+  </style>
+
+  <!-- TODO(a bug): investigate making this style's parent Dialer.ThemeBase.NoActionBar -->
+  <style name="Theme.AppCompat.Translucent" parent="Theme.AppCompat.NoActionBar">
+    <item name="android:windowNoTitle">true</item>
+    <item name="android:windowBackground">@android:color/transparent</item>
+    <item name="android:colorBackgroundCacheHint">@null</item>
+    <item name="android:windowIsTranslucent">true</item>
+    <item name="android:windowAnimationStyle">@android:style/Animation</item>
+  </style>
+
+  <!-- Deprecated: Use Toolbar instead of ActionBar. -->
+  <!-- Used to style all Dialer's action bars. Every actionbar is awarded this for free if the parent
+     activity's theme extends from Dialer.ThemeBase.ActionBar or doesn't specify a theme. -->
+  <style name="DialerActionBarBaseStyle"
+      parent="@style/Widget.AppCompat.Light.ActionBar.Solid.Inverse">
+    <item name="android:background">?android:attr/colorPrimary</item>
+    <item name="background">?android:attr/colorPrimary</item>
+  </style>
+</resources>