Fix issue with icon being loaded by the wrong context

- Fixing a regression from ag/12184846 (Reduce ContextThemeWrapper
  usage), the context used to load the icons (which references a
  color in the theme) was not the light context.  This was only an
  issue with ContextualButtons which loaded their icons separate
  from nav bar view

Bug: 162784729
Test: Verify ime switcher and accessibility buttons are visible
Test: atest SystemUITests:NavigationBarContextTest
Change-Id: I7e18cd68889b2b4215fc817becd6412a466c8da5

packages/SystemUI/src/com/android/systemui/statusbar/phone/ContextualButton.java

@@ -34,6 +34,7 @@ public class ContextualButton extends ButtonDispatcher {
     private ContextButtonListener mListener;
     private ContextualButtonGroup mGroup;
 
+    protected final Context mLightContext;
     protected final @DrawableRes int mIconResId;
 
     /**
@@ -42,8 +43,10 @@ public class ContextualButton extends ButtonDispatcher {
       * @param buttonResId the button view from xml layout
       * @param iconResId icon resource to be used
       */
-    public ContextualButton(@IdRes int buttonResId, @DrawableRes int iconResId) {
+    public ContextualButton(@IdRes int buttonResId, Context lightContext,
+            @DrawableRes int iconResId) {
         super(buttonResId);
+        mLightContext = lightContext;
         mIconResId = iconResId;
     }
 
@@ -117,17 +120,8 @@ public class ContextualButton extends ButtonDispatcher {
     }
 
     protected KeyButtonDrawable getNewDrawable(int lightIconColor, int darkIconColor) {
-        return KeyButtonDrawable.create(getContext().getApplicationContext(), lightIconColor,
-                darkIconColor, mIconResId, false /* shadow */, null /* ovalBackground */);
-    }
-
-    /**
-     * This context is from the view that could be stale after rotation or config change. To get
-     * correct resources use getApplicationContext() as well.
-     * @return current view context
-     */
-    protected Context getContext() {
-        return getCurrentView().getContext();
+        return KeyButtonDrawable.create(mLightContext, lightIconColor, darkIconColor, mIconResId,
+                false /* shadow */, null /* ovalBackground */);
     }
 
     public interface ContextButtonListener {

packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java

@@ -295,11 +295,12 @@ public class NavigationBarView extends FrameLayout implements
         // Set up the context group of buttons
         mContextualButtonGroup = new ContextualButtonGroup(R.id.menu_container);
         final ContextualButton imeSwitcherButton = new ContextualButton(R.id.ime_switcher,
-                R.drawable.ic_ime_switcher_default);
+                mLightContext, R.drawable.ic_ime_switcher_default);
         final RotationContextButton rotateSuggestionButton = new RotationContextButton(
-                R.id.rotate_suggestion, R.drawable.ic_sysbar_rotate_button_ccw_start_0);
+                R.id.rotate_suggestion, mLightContext,
+                R.drawable.ic_sysbar_rotate_button_ccw_start_0);
         final ContextualButton accessibilityButton =
-                new ContextualButton(R.id.accessibility_button,
+                new ContextualButton(R.id.accessibility_button, mLightContext,
                         R.drawable.ic_sysbar_accessibility_button);
         mContextualButtonGroup.addButton(imeSwitcherButton);
         if (!isGesturalMode) {

packages/SystemUI/src/com/android/systemui/statusbar/phone/RotationButtonController.java

@@ -283,7 +283,6 @@ public class RotationButtonController {
             return;
         }
 
-        // TODO: Remove styles?
         // Prepare to show the navbar icon by updating the icon style to change anim params
         mLastRotationSuggestion = rotation; // Remember rotation for click
         final boolean rotationCCW = isRotationAnimationCCW(windowRotation, rotation);

packages/SystemUI/src/com/android/systemui/statusbar/phone/RotationContextButton.java

@@ -18,6 +18,7 @@ package com.android.systemui.statusbar.phone;
 
 import android.annotation.DrawableRes;
 import android.annotation.IdRes;
+import android.content.Context;
 import android.view.View;
 
 import com.android.systemui.statusbar.policy.KeyButtonDrawable;
@@ -28,8 +29,12 @@ public class RotationContextButton extends ContextualButton implements RotationB
 
     private RotationButtonController mRotationButtonController;
 
-    public RotationContextButton(@IdRes int buttonResId, @DrawableRes int iconResId) {
-        super(buttonResId, iconResId);
+    /**
+     * @param lightContext the context to use to load the icon resource
+     */
+    public RotationContextButton(@IdRes int buttonResId, Context lightContext,
+            @DrawableRes int iconResId) {
+        super(buttonResId, lightContext, iconResId);
     }
 
     @Override

packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NavigationBarContextTest.java

@@ -65,9 +65,9 @@ public class NavigationBarContextTest extends SysuiTestCase {
         mDependency.injectMockDependency(AssistManager.class);
 
         mGroup = new ContextualButtonGroup(GROUP_ID);
-        mBtn0 = new ContextualButton(BUTTON_0_ID, ICON_RES_ID);
-        mBtn1 = new ContextualButton(BUTTON_1_ID, ICON_RES_ID);
-        mBtn2 = new ContextualButton(BUTTON_2_ID, ICON_RES_ID);
+        mBtn0 = new ContextualButton(BUTTON_0_ID, mContext, ICON_RES_ID);
+        mBtn1 = new ContextualButton(BUTTON_1_ID, mContext, ICON_RES_ID);
+        mBtn2 = new ContextualButton(BUTTON_2_ID, mContext, ICON_RES_ID);
 
         // Order of adding buttons to group determines the priority, ascending priority order
         mGroup.addButton(mBtn0);