Merge "Reinflate silent notif header on config change" into qt-dev
diff --git a/packages/SystemUI/res/layout/status_bar_notification_section_header.xml b/packages/SystemUI/res/layout/status_bar_notification_section_header.xml
index eabc5c5..508619a 100644
--- a/packages/SystemUI/res/layout/status_bar_notification_section_header.xml
+++ b/packages/SystemUI/res/layout/status_bar_notification_section_header.xml
@@ -22,6 +22,7 @@
     android:focusable="true"
     android:clickable="true"
     >
+
     <com.android.systemui.statusbar.notification.row.NotificationBackgroundView
         android:id="@+id/backgroundNormal"
         android:layout_width="match_parent"
@@ -38,28 +39,7 @@
         android:gravity="center_vertical"
         android:orientation="horizontal"
         >
-        <TextView
-            android:id="@+id/header_label"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:layout_marginStart="@dimen/notification_section_header_padding_left"
-            android:gravity="start"
-            android:textAlignment="gravity"
-            android:text="@string/notification_section_header_gentle"
-            android:textSize="12sp"
-            android:textColor="@color/notification_section_header_label_color"
-            android:fontFamily="@*android:string/config_headlineFontFamilyMedium"
-            />
-        <ImageView
-            android:id="@+id/btn_clear_all"
-            android:layout_width="@dimen/notification_section_header_height"
-            android:layout_height="@dimen/notification_section_header_height"
-            android:layout_marginEnd="4dp"
-            android:src="@drawable/status_bar_notification_section_header_clear_btn"
-            android:contentDescription="@string/accessibility_notification_section_header_gentle_clear_all"
-            android:scaleType="center"
-            />
+        <include layout="@layout/status_bar_notification_section_header_contents"/>
     </LinearLayout>
 
     <com.android.systemui.statusbar.notification.FakeShadowView
diff --git a/packages/SystemUI/res/layout/status_bar_notification_section_header_contents.xml b/packages/SystemUI/res/layout/status_bar_notification_section_header_contents.xml
new file mode 100644
index 0000000..feabd1c
--- /dev/null
+++ b/packages/SystemUI/res/layout/status_bar_notification_section_header_contents.xml
@@ -0,0 +1,41 @@
+<!--
+  ~ 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
+  -->
+
+<!-- Used by both status_bar_notification_header and SectionHeaderView -->
+<merge xmlns:android="http://schemas.android.com/apk/res/android" >
+    <TextView
+        android:id="@+id/header_label"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:layout_marginStart="@dimen/notification_section_header_padding_left"
+        android:gravity="start"
+        android:textAlignment="gravity"
+        android:text="@string/notification_section_header_gentle"
+        android:textSize="12sp"
+        android:textColor="@color/notification_section_header_label_color"
+        android:fontFamily="@*android:string/config_headlineFontFamilyMedium"
+    />
+    <ImageView
+        android:id="@+id/btn_clear_all"
+        android:layout_width="@dimen/notification_section_header_height"
+        android:layout_height="@dimen/notification_section_header_height"
+        android:layout_marginEnd="4dp"
+        android:src="@drawable/status_bar_notification_section_header_clear_btn"
+        android:contentDescription="@string/accessibility_notification_section_header_gentle_clear_all"
+        android:scaleType="center"
+    />
+</merge>
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManager.java
index 5747bb1..170a4d5 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManager.java
@@ -19,7 +19,6 @@
 import static com.android.systemui.statusbar.notification.stack.NotificationStackScrollLayout.ROWS_GENTLE;
 
 import android.annotation.Nullable;
-import android.content.Context;
 import android.content.Intent;
 import android.provider.Settings;
 import android.view.LayoutInflater;
@@ -32,6 +31,8 @@
 import com.android.systemui.statusbar.StatusBarState;
 import com.android.systemui.statusbar.notification.row.ActivatableNotificationView;
 import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
+import com.android.systemui.statusbar.policy.ConfigurationController;
+import com.android.systemui.statusbar.policy.ConfigurationController.ConfigurationListener;
 
 /**
  * Manages the boundaries of the two notification sections (high priority and low priority). Also
@@ -43,8 +44,10 @@
     private final NotificationStackScrollLayout mParent;
     private final ActivityStarter mActivityStarter;
     private final StatusBarStateController mStatusBarStateController;
+    private final ConfigurationController mConfigurationController;
     private final boolean mUseMultipleSections;
 
+    private boolean mInitialized = false;
     private SectionHeaderView mGentleHeader;
     private boolean mGentleHeaderVisible = false;
     @Nullable private ExpandableNotificationRow mFirstGentleNotif;
@@ -54,18 +57,29 @@
             NotificationStackScrollLayout parent,
             ActivityStarter activityStarter,
             StatusBarStateController statusBarStateController,
+            ConfigurationController configurationController,
             boolean useMultipleSections) {
         mParent = parent;
         mActivityStarter = activityStarter;
         mStatusBarStateController = statusBarStateController;
+        mConfigurationController = configurationController;
         mUseMultipleSections = useMultipleSections;
     }
 
+    /** Must be called before use. */
+    void initialize(LayoutInflater layoutInflater) {
+        if (mInitialized) {
+            throw new IllegalStateException("NotificationSectionsManager already initialized");
+        }
+        mInitialized = true;
+        reinflateViews(layoutInflater);
+        mConfigurationController.addCallback(mConfigurationListener);
+    }
+
     /**
-     * Must be called before use. Should be called again whenever inflation-related things change,
-     * such as density or theme changes.
+     * Reinflates the entire notification header, including all decoration views.
      */
-    void inflateViews(Context context) {
+    void reinflateViews(LayoutInflater layoutInflater) {
         int oldPos = -1;
         if (mGentleHeader != null) {
             if (mGentleHeader.getTransientContainer() != null) {
@@ -76,7 +90,7 @@
             }
         }
 
-        mGentleHeader = (SectionHeaderView) LayoutInflater.from(context).inflate(
+        mGentleHeader = (SectionHeaderView) layoutInflater.inflate(
                 R.layout.status_bar_notification_section_header, mParent, false);
         mGentleHeader.setOnHeaderClickListener(this::onGentleHeaderClick);
         mGentleHeader.setOnClearAllClickListener(this::onClearGentleNotifsClick);
@@ -244,6 +258,13 @@
         return lastChildBeforeGap;
     }
 
+    private final ConfigurationListener mConfigurationListener = new ConfigurationListener() {
+        @Override
+        public void onLocaleListChanged() {
+            mGentleHeader.reinflateContents();
+        }
+    };
+
     private void onGentleHeaderClick(View v) {
         Intent intent = new Intent(Settings.ACTION_NOTIFICATION_SETTINGS);
         mActivityStarter.startActivity(
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
index c214431..6e9fe67 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
@@ -32,7 +32,6 @@
 import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
-import android.app.WallpaperManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Configuration;
@@ -515,6 +514,7 @@
             NotificationRoundnessManager notificationRoundnessManager,
             AmbientPulseManager ambientPulseManager,
             DynamicPrivacyController dynamicPrivacyController,
+            ConfigurationController configurationController,
             ActivityStarter activityStarter,
             StatusBarStateController statusBarStateController) {
         super(context, attrs, 0, 0);
@@ -533,8 +533,9 @@
                         this,
                         activityStarter,
                         statusBarStateController,
+                        configurationController,
                         NotificationUtils.useNewInterruptionModel(context));
-        mSectionsManager.inflateViews(context);
+        mSectionsManager.initialize(LayoutInflater.from(context));
         mSectionsManager.setOnClearGentleNotifsClickListener(v -> {
             // Leave the shade open if there will be other notifs left over to clear
             final boolean closeShade = !hasActiveClearableNotifications(ROWS_HIGH_PRIORITY);
@@ -648,7 +649,7 @@
         inflateFooterView();
         inflateEmptyShadeView();
         updateFooter();
-        mSectionsManager.inflateViews(mContext);
+        mSectionsManager.reinflateViews(LayoutInflater.from(mContext));
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/SectionHeaderView.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/SectionHeaderView.java
index e2f702d..cc1170f 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/SectionHeaderView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/SectionHeaderView.java
@@ -16,11 +16,16 @@
 
 package com.android.systemui.statusbar.notification.stack;
 
+import static com.android.internal.util.Preconditions.checkNotNull;
+
+import android.annotation.Nullable;
 import android.content.Context;
 import android.graphics.RectF;
 import android.util.AttributeSet;
+import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.TextView;
 
@@ -32,9 +37,10 @@
  * notification sections. Currently only used for gentle notifications.
  */
 public class SectionHeaderView extends ActivatableNotificationView {
-    private View mContents;
+    private ViewGroup mContents;
     private TextView mLabelView;
     private ImageView mClearAllButton;
+    @Nullable private View.OnClickListener mOnClearClickListener = null;
 
     private final RectF mTmpRect = new RectF();
 
@@ -45,9 +51,16 @@
     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
-        mContents = findViewById(R.id.content);
-        mLabelView = findViewById(R.id.header_label);
-        mClearAllButton = findViewById(R.id.btn_clear_all);
+        mContents = checkNotNull(findViewById(R.id.content));
+        bindContents();
+    }
+
+    private void bindContents() {
+        mLabelView = checkNotNull(findViewById(R.id.header_label));
+        mClearAllButton = checkNotNull(findViewById(R.id.btn_clear_all));
+        if (mOnClearClickListener != null) {
+            mClearAllButton.setOnClickListener(mOnClearClickListener);
+        }
     }
 
     @Override
@@ -55,6 +68,21 @@
         return mContents;
     }
 
+    /**
+     * Destroys and reinflates the visible contents of the section header. For use on configuration
+     * changes or any other time that layout values might need to be re-evaluated.
+     *
+     * Does not reinflate the base content view itself ({@link #getContentView()} or any of the
+     * decorator views, such as the background view or shadow view.
+     */
+    void reinflateContents() {
+        mContents.removeAllViews();
+        LayoutInflater.from(getContext()).inflate(
+                R.layout.status_bar_notification_section_header_contents,
+                mContents);
+        bindContents();
+    }
+
     /** Must be called whenever the UI mode changes (i.e. when we enter night mode). */
     void onUiModeChanged() {
         updateBackgroundColors();
@@ -88,6 +116,7 @@
 
     /** Fired when the user clicks on the "X" button on the far right of the header. */
     void setOnClearAllClickListener(View.OnClickListener listener) {
+        mOnClearClickListener = listener;
         mClearAllButton.setOnClickListener(listener);
     }
 }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManagerTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManagerTest.java
index b99958a..73abda9 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManagerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationSectionsManagerTest.java
@@ -31,6 +31,7 @@
 import android.testing.AndroidTestingRunner;
 import android.testing.TestableLooper;
 import android.util.AttributeSet;
+import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
@@ -41,6 +42,7 @@
 import com.android.systemui.plugins.statusbar.StatusBarStateController;
 import com.android.systemui.statusbar.StatusBarState;
 import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
+import com.android.systemui.statusbar.policy.ConfigurationController;
 
 import org.junit.Before;
 import org.junit.Rule;
@@ -60,6 +62,7 @@
     @Mock private NotificationStackScrollLayout mNssl;
     @Mock private ActivityStarterDelegate mActivityStarterDelegate;
     @Mock private StatusBarStateController mStatusBarStateController;
+    @Mock private ConfigurationController mConfigurationController;
 
     private NotificationSectionsManager mSectionsManager;
 
@@ -70,15 +73,21 @@
                         mNssl,
                         mActivityStarterDelegate,
                         mStatusBarStateController,
+                        mConfigurationController,
                         true);
         // Required in order for the header inflation to work properly
         when(mNssl.generateLayoutParams(any(AttributeSet.class)))
                 .thenReturn(new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT));
-        mSectionsManager.inflateViews(mContext);
+        mSectionsManager.initialize(LayoutInflater.from(mContext));
         when(mNssl.indexOfChild(any(View.class))).thenReturn(-1);
         when(mStatusBarStateController.getState()).thenReturn(StatusBarState.SHADE);
     }
 
+    @Test(expected =  IllegalStateException.class)
+    public void testDuplicateInitializeThrows() {
+        mSectionsManager.initialize(LayoutInflater.from(mContext));
+    }
+
     @Test
     public void testInsertHeader() {
         // GIVEN a stack with HI and LO rows but no section headers
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutTest.java
index d425982..9f49e89 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutTest.java
@@ -75,6 +75,7 @@
 import com.android.systemui.statusbar.phone.ShadeController;
 import com.android.systemui.statusbar.phone.StatusBar;
 import com.android.systemui.statusbar.phone.StatusBarTest.TestableNotificationEntryManager;
+import com.android.systemui.statusbar.policy.ConfigurationController;
 
 import org.junit.After;
 import org.junit.Assert;
@@ -155,6 +156,7 @@
                 true /* allowLongPress */, mNotificationRoundnessManager,
                 new AmbientPulseManager(mContext),
                 mock(DynamicPrivacyController.class),
+                mock(ConfigurationController.class),
                 mock(ActivityStarterDelegate.class),
                 mock(StatusBarStateController.class));
         mStackScroller = spy(mStackScrollerInternal);