From e042f25cdaec4b3c2f5d84f7e5ce5eacb9e64f0a Mon Sep 17 00:00:00 2001
From: Daniel Koman <dankoman30@gmail.com>
Date: Wed, 08 Jul 2015 16:29:29 +0200
Subject: [PATCH] SystemUI: SlimDim [1/2]

dims nav buttons after inactivity

patchset: add animation preference
patchset: abort animation in onNavButtonTouched()
patchset: fix buttons stay bright if device unlocked after
        animation has started

Modified for use on Temasek build

AICPfy

Change-Id: I693819eec4cec3c6d11d1417b07cf650ad148bb3
---

diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 85435cf..2c95265 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -2967,6 +2967,36 @@
 
 
         /**
+         * Whether to dim the navigation bar icons after inactivity
+         * @hide
+         */
+        public static final String DIM_NAV_BUTTONS = "dim_nav_buttons";
+
+        /**
+         * Time in milliseconds to wait before dimming the nav buttons
+         * @hide
+         */
+        public static final String DIM_NAV_BUTTONS_TIMEOUT = "dim_nav_buttons_timeout";
+
+        /**
+         * Alpha value percentage to dim the nav buttons to
+         * @hide
+         */
+        public static final String DIM_NAV_BUTTONS_ALPHA = "dim_nav_buttons_alpha";
+
+        /**
+         * Whether to animate the nav button dimming
+         * @hide
+         */
+        public static final String DIM_NAV_BUTTONS_ANIMATE = "dim_nav_buttons_animate";
+
+        /**
+         * Duration of the fade animation in milliseconds
+         * @hide
+         */
+        public static final String DIM_NAV_BUTTONS_ANIMATE_DURATION = "dim_nav_buttons_animate_duration";
+
+        /**
          * Date format string
          *   mm/dd/yyyy
          *   dd/mm/yyyy
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
index ac125b3..d0d284f 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
@@ -53,6 +53,10 @@
 import android.view.WindowManager;
 import android.view.*;
 import android.view.inputmethod.InputMethodManager;
+import android.view.animation.AccelerateInterpolator;
+import android.view.animation.AlphaAnimation;
+import android.view.animation.Animation;
+import android.view.animation.Animation.AnimationListener;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
@@ -102,6 +106,15 @@
     private Drawable mRecentLandIcon;
     private Drawable mHomeIcon, mHomeLandIcon;
 
+    private boolean mDimNavButtons;
+    private int mDimNavButtonsTimeout;
+    private float mDimNavButtonsAlpha = 0.5f;
+    private float mOriginalAlpha = 1.0f;
+    private boolean mIsDim = false;
+    private boolean mIsAnimating = false;
+    private boolean mDimNavButtonsAnimate;
+    private int mDimNavButtonsAnimateDuration;
+
     private NavigationBarViewTaskSwitchHelper mTaskSwitchHelper;
     private DeadZone mDeadZone;
     private final NavigationBarTransitions mBarTransitions;
@@ -177,6 +190,7 @@
             } else if (NavbarEditor.NAVBAR_HOME.equals(view.getTag()) && transitionType == LayoutTransition.APPEARING) {
                 mHomeAppearing = false;
             }
+            onNavButtonTouched();
         }
 
         public void onBackAltCleared() {
@@ -202,6 +216,21 @@
         }
     };
 
+    public void onNavButtonTouched() {
+        mHandler.removeCallbacks(mNavButtonDimmer);
+        if (getNavButtons() != null) {
+            if (mIsDim || mIsAnimating) {
+                mIsAnimating = false;
+                getNavButtons().clearAnimation();
+                mIsDim = false;
+                getNavButtons().setAlpha(mOriginalAlpha);
+            }
+            if (mDimNavButtons) {
+                mHandler.postDelayed(mNavButtonDimmer, mDimNavButtonsTimeout);
+            }
+        }
+    }
+
     private class H extends Handler {
         public void handleMessage(Message m) {
             switch (m.what) {
@@ -334,6 +363,10 @@
         return mCurrentView.findViewById(R.id.ime_switcher);
     }
 
+    public ViewGroup getNavButtons() {
+        return (ViewGroup) mCurrentView.findViewById(R.id.nav_buttons);
+    }
+
     private void getIcons(Resources res) {
         mBackIcon = new BackButtonDrawable(res.getDrawable(R.drawable.ic_sysbar_back));
 	mBackLandIcon = mBackIcon;
@@ -480,9 +513,8 @@
             setSlippery(disableHome && disableRecent && disableBack && disableSearch);
         }
 
-        ViewGroup navButtons = (ViewGroup) mCurrentView.findViewById(R.id.nav_buttons);
-        if (navButtons != null) {
-            LayoutTransition lt = navButtons.getLayoutTransition();
+        if (getNavButtons() != null) {
+            LayoutTransition lt = getNavButtons().getLayoutTransition();
             if (lt != null) {
                 if (!lt.getTransitionListeners().contains(mTransitionListener)) {
                     lt.addTransitionListener(mTransitionListener);
@@ -931,6 +963,16 @@
             resolver.registerContentObserver(
                     Settings.System.getUriFor(Settings.System.DOUBLE_TAP_SLEEP_NAVBAR),
                     false, this, UserHandle.USER_ALL);
+            resolver.registerContentObserver(Settings.System.getUriFor(
+                    Settings.System.DIM_NAV_BUTTONS), false, this);
+            resolver.registerContentObserver(Settings.System.getUriFor(
+                    Settings.System.DIM_NAV_BUTTONS_TIMEOUT), false, this);
+            resolver.registerContentObserver(Settings.System.getUriFor(
+                    Settings.System.DIM_NAV_BUTTONS_ALPHA), false, this);
+            resolver.registerContentObserver(Settings.System.getUriFor(
+                    Settings.System.DIM_NAV_BUTTONS_ANIMATE), false, this);
+            resolver.registerContentObserver(Settings.System.getUriFor(
+                    Settings.System.DIM_NAV_BUTTONS_ANIMATE_DURATION), false, this);
 
             // intialize mModlockDisabled
             onChange(false);
@@ -944,8 +986,25 @@
 
         @Override
         protected void update() {
+            ContentResolver resolver = mContext.getContentResolver();
+
             mShowDpadArrowKeys = CMSettings.System.getIntForUser(getContext().getContentResolver(),
                     CMSettings.System.NAVIGATION_BAR_MENU_ARROW_KEYS, 0, UserHandle.USER_CURRENT) != 0;
+            mDimNavButtons = (Settings.System.getIntForUser(resolver,
+                    Settings.System.DIM_NAV_BUTTONS, 0,
+                    UserHandle.USER_CURRENT) == 1);
+            mDimNavButtonsTimeout = Settings.System.getIntForUser(resolver,
+                    Settings.System.DIM_NAV_BUTTONS_TIMEOUT, 3000,
+                    UserHandle.USER_CURRENT);
+            mDimNavButtonsAlpha = (float) Settings.System.getIntForUser(resolver,
+                    Settings.System.DIM_NAV_BUTTONS_ALPHA, 50,
+                    UserHandle.USER_CURRENT) / 100.0f;
+            mDimNavButtonsAnimate = (Settings.System.getIntForUser(resolver,
+                    Settings.System.DIM_NAV_BUTTONS_ANIMATE, 0,
+                    UserHandle.USER_CURRENT) == 1);
+            mDimNavButtonsAnimateDuration = Settings.System.getIntForUser(resolver,
+                    Settings.System.DIM_NAV_BUTTONS_ANIMATE_DURATION, 2000,
+                    UserHandle.USER_CURRENT);
             // reset saved side button visibilities
             for (int i = 0; i < mSideButtonVisibilities.length; i++) {
                 for (int j = 0; j < mSideButtonVisibilities[i].length; j++) {
@@ -954,8 +1013,46 @@
             }
             setNavigationIconHints(mNavigationIconHints, true);
 
+            onNavButtonTouched();
+
             mDoubleTapToSleep = Settings.System.getIntForUser(mContext.getContentResolver(),
                     Settings.System.DOUBLE_TAP_SLEEP_NAVBAR, 0, UserHandle.USER_CURRENT) != 0;
         }
     }
+
+    private Runnable mNavButtonDimmer = new Runnable() {
+        @Override
+        public void run() {
+            if (getNavButtons() != null && mIsDim == false) {
+                mIsDim = true;
+                if (mDimNavButtonsAnimate) {
+                    AlphaAnimation fadeOut =
+                            new AlphaAnimation(mOriginalAlpha, mDimNavButtonsAlpha);
+                    fadeOut.setInterpolator(new AccelerateInterpolator());
+                    fadeOut.setDuration(mDimNavButtonsAnimateDuration);
+                    fadeOut.setAnimationListener(new Animation.AnimationListener() {
+                        @Override
+                        public void onAnimationEnd(Animation animation) {
+                            if (mIsAnimating) {
+                                mIsAnimating = false;
+                            }
+                        }
+
+                        @Override
+                        public void onAnimationRepeat(Animation animation) {
+                        }
+
+                        @Override
+                        public void onAnimationStart(Animation animation) {
+                            mIsAnimating = true;
+                        }
+                    });
+                    fadeOut.setFillAfter(true);
+                    getNavButtons().startAnimation(fadeOut);
+                } else {
+                    getNavButtons().setAlpha(mDimNavButtonsAlpha);
+                }
+            }
+        }
+    };
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyButtonView.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyButtonView.java
index f6a4566..b14d74e 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyButtonView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyButtonView.java
@@ -37,12 +37,14 @@
 import android.view.SoundEffectConstants;
 import android.view.View;
 import android.view.ViewConfiguration;
+import android.view.ViewParent;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityNodeInfo;
 import android.widget.ImageView;
 
 import com.android.systemui.R;
 import com.android.systemui.statusbar.phone.NavbarEditor;
+import com.android.systemui.statusbar.phone.NavigationBarView;
 
 import static android.view.accessibility.AccessibilityNodeInfo.ACTION_CLICK;
 import static android.view.accessibility.AccessibilityNodeInfo.ACTION_LONG_CLICK;
@@ -316,6 +318,13 @@
                 break;
         }
 
+        ViewParent parent = getParent();
+        while (parent != null && !(parent instanceof NavigationBarView)) {
+            parent = parent.getParent();
+        }
+        if (parent != null) {
+            ((NavigationBarView) parent).onNavButtonTouched();
+        }
         return true;
     }