Add setting to guard the lock-to-app recents icon

Lock-to-app (soon to be screen-pinning) will now only show up once
it has been enabled in settings.

Bug: 16378448
Change-Id: Ide333463f86310eacb7a1d8b6dc7b1aea8722713

9 files changed, 68 insertions, 34 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/recents/AlternateRecentsComponent.java b/packages/SystemUI/src/com/android/systemui/recents/AlternateRecentsComponent.java
index b6d7d7e..66e5d14 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/AlternateRecentsComponent.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/AlternateRecentsComponent.java
@@ -84,7 +84,7 @@ public class AlternateRecentsComponent implements ActivityOptions.OnAnimationSta
         mContext = context;
         mSystemServicesProxy = new SystemServicesProxy(context);
         mHandler = new Handler();
-        mConfig = RecentsConfiguration.reinitialize(context);
+        mConfig = RecentsConfiguration.reinitialize(context, mSystemServicesProxy);
         mWindowRect = mSystemServicesProxy.getWindowRect();
         mTaskStackBounds = new Rect();
         mConfig.getTaskStackBounds(mWindowRect.width(), mWindowRect.height(), mTaskStackBounds);
@@ -147,7 +147,7 @@ public class AlternateRecentsComponent implements ActivityOptions.OnAnimationSta
     }
 
     public void onConfigurationChanged(Configuration newConfig) {
-        mConfig = RecentsConfiguration.reinitialize(mContext);
+        mConfig = RecentsConfiguration.reinitialize(mContext, mSystemServicesProxy);
         mConfig.updateOnConfigurationChange();
         mWindowRect = mSystemServicesProxy.getWindowRect();
         mConfig.getTaskStackBounds(mWindowRect.width(), mWindowRect.height(), mTaskStackBounds);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
index 29a0262..5741f22 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
@@ -340,7 +340,8 @@ public class RecentsActivity extends Activity implements RecentsView.RecentsView
 
         // Initialize the loader and the configuration
         RecentsTaskLoader.initialize(this);
-        mConfig = RecentsConfiguration.reinitialize(this);
+        mConfig = RecentsConfiguration.reinitialize(this,
+                RecentsTaskLoader.getInstance().getSystemServicesProxy());
 
         // Create the home intent runnable
         Intent homeIntent = new Intent(Intent.ACTION_MAIN, null);
@@ -405,7 +406,8 @@ public class RecentsActivity extends Activity implements RecentsView.RecentsView
 
     void onConfigurationChange() {
         // Update RecentsConfiguration
-        mConfig = RecentsConfiguration.reinitialize(this);
+        mConfig = RecentsConfiguration.reinitialize(this,
+                RecentsTaskLoader.getInstance().getSystemServicesProxy());
 
         // Try and start the enter animation (or restart it on configuration changed)
         ReferenceCountedTrigger t = new ReferenceCountedTrigger(this, null, null, null);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsConfiguration.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsConfiguration.java
index 439765e..a0cab5c 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsConfiguration.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsConfiguration.java
@@ -29,6 +29,7 @@ import android.view.animation.AnimationUtils;
 import android.view.animation.Interpolator;
 import com.android.systemui.R;
 import com.android.systemui.recents.misc.Console;
+import com.android.systemui.recents.misc.SystemServicesProxy;
 
 
 /** A static Recents configuration for the current context
@@ -109,7 +110,8 @@ public class RecentsConfiguration {
     public boolean launchedFromHome;
     public int launchedToTaskId;
 
-    /** Dev options */
+    /** Dev options and global settings */
+    public boolean lockToAppEnabled;
     public boolean developerOptionsEnabled;
     public boolean debugModeEnabled;
 
@@ -127,15 +129,10 @@ public class RecentsConfiguration {
                 com.android.internal.R.interpolator.linear_out_slow_in);
         quintOutInterpolator = AnimationUtils.loadInterpolator(context,
                 com.android.internal.R.interpolator.decelerate_quint);
-
-        // Check if the developer options are enabled
-        ContentResolver cr = context.getContentResolver();
-        developerOptionsEnabled = Settings.Global.getInt(cr,
-                Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, 0) != 0;
     }
 
     /** Updates the configuration to the current context */
-    public static RecentsConfiguration reinitialize(Context context) {
+    public static RecentsConfiguration reinitialize(Context context, SystemServicesProxy ssp) {
         if (sInstance == null) {
             sInstance = new RecentsConfiguration(context);
         }
@@ -144,6 +141,7 @@ public class RecentsConfiguration {
             sInstance.update(context);
             sPrevConfigurationHashCode = configHashCode;
         }
+        sInstance.updateOnReinitialize(context, ssp);
         return sInstance;
     }
 
@@ -260,6 +258,15 @@ public class RecentsConfiguration {
                 appWidgetId).apply();
     }
 
+    /** Updates the states that need to be re-read whenever we re-initialize. */
+    void updateOnReinitialize(Context context, SystemServicesProxy ssp) {
+        // Check if the developer options are enabled
+        developerOptionsEnabled = ssp.getGlobalSetting(context,
+                Settings.Global.DEVELOPMENT_SETTINGS_ENABLED) != 0;
+        lockToAppEnabled = ssp.getSystemSetting(context,
+                Settings.System.LOCK_TO_APP_ENABLED) != 0;
+    }
+
     /** Called when the configuration has changed, and we want to reset any configuration specific
      * members. */
     public void updateOnConfigurationChange() {
diff --git a/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java b/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
index ced4043..5fadc71 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
@@ -26,6 +26,7 @@ import android.appwidget.AppWidgetHost;
 import android.appwidget.AppWidgetManager;
 import android.appwidget.AppWidgetProviderInfo;
 import android.content.ComponentName;
+import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
@@ -47,6 +48,7 @@ import android.os.ParcelFileDescriptor;
 import android.os.RemoteException;
 import android.os.UserHandle;
 import android.os.UserManager;
+import android.provider.Settings;
 import android.util.Log;
 import android.util.Pair;
 import android.view.Display;
@@ -413,6 +415,22 @@ public class SystemServicesProxy {
     }
 
     /**
+     * Returns a global setting.
+     */
+    public int getGlobalSetting(Context context, String setting) {
+        ContentResolver cr = context.getContentResolver();
+        return Settings.Global.getInt(cr, setting, 0);
+    }
+
+    /**
+     * Returns a system setting.
+     */
+    public int getSystemSetting(Context context, String setting) {
+        ContentResolver cr = context.getContentResolver();
+        return Settings.System.getInt(cr, setting, 0);
+    }
+
+    /**
      * Returns the window rect.
      */
     public Rect getWindowRect() {
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoader.java b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoader.java
index adf0794..9325947 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoader.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoader.java
@@ -27,6 +27,9 @@ import android.graphics.drawable.Drawable;
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.UserHandle;
+import android.provider.Settings;
+import android.provider.Settings.SettingNotFoundException;
+
 import com.android.systemui.recents.Constants;
 import com.android.systemui.recents.RecentsConfiguration;
 import com.android.systemui.recents.misc.SystemServicesProxy;
@@ -340,7 +343,7 @@ public class RecentsTaskLoader {
             // Create a new task
             Task task = new Task(t.persistentId, (t.id > -1), t.baseIntent, t.affiliatedTaskId,
                     activityLabel, activityIcon, activityColor, t.userId, t.firstActiveTime,
-                    t.lastActiveTime, (i == (taskCount - 1)));
+                    t.lastActiveTime, (i == (taskCount - 1)), config.lockToAppEnabled);
 
             // Preload the specified number of apps
             if (i >= (taskCount - preloadCount)) {
@@ -395,6 +398,7 @@ public class RecentsTaskLoader {
 
     /** Creates a lightweight stack of the current recent tasks, without thumbnails and icons. */
     public static TaskStack getShallowTaskStack(SystemServicesProxy ssp) {
+        RecentsConfiguration config = RecentsConfiguration.getInstance();
         List<ActivityManager.RecentTaskInfo> tasks = getRecentTasks(ssp);
         TaskStack stack = new TaskStack();
 
@@ -405,7 +409,8 @@ public class RecentsTaskLoader {
             if (info == null) continue;
 
             stack.addTask(new Task(t.persistentId, true, t.baseIntent, t.affiliatedTaskId, null,
-                    null, 0, 0, t.firstActiveTime, t.lastActiveTime, (i == (taskCount - 1))));
+                    null, 0, 0, t.firstActiveTime, t.lastActiveTime, (i == (taskCount - 1)),
+                    config.lockToAppEnabled));
         }
         stack.createAffiliatedGroupings();
         return stack;
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/Task.java b/packages/SystemUI/src/com/android/systemui/recents/model/Task.java
index 2473352..4cf9235 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/Task.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/Task.java
@@ -84,7 +84,8 @@ public class Task {
     public boolean useLightOnPrimaryColor;
     public Bitmap thumbnail;
     public boolean isActive;
-    public boolean canLockToTask;
+    public boolean lockToThisTask;
+    public boolean lockToTaskEnabled;
     public int userId;
 
     TaskCallbacks mCb;
@@ -95,7 +96,8 @@ public class Task {
 
     public Task(int id, boolean isActive, Intent intent, int taskAffiliation, String activityTitle,
                 Drawable activityIcon, int colorPrimary, int userId,
-                long firstActiveTime, long lastActiveTime, boolean canLockToTask) {
+                long firstActiveTime, long lastActiveTime, boolean lockToThisTask,
+                boolean lockToTaskEnabled) {
         this.key = new TaskKey(id, intent, userId, firstActiveTime, lastActiveTime);
         this.taskAffiliation = taskAffiliation;
         this.activityLabel = activityTitle;
@@ -104,7 +106,8 @@ public class Task {
         this.useLightOnPrimaryColor = Utilities.computeContrastBetweenColors(colorPrimary,
                 Color.WHITE) > 3f;
         this.isActive = isActive;
-        this.canLockToTask = canLockToTask;
+        this.lockToThisTask = lockToTaskEnabled && lockToThisTask;
+        this.lockToTaskEnabled = lockToTaskEnabled;
         this.userId = userId;
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java b/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java
index 13fbe64..fdc5775 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java
@@ -17,6 +17,7 @@
 package com.android.systemui.recents.model;
 
 import com.android.systemui.recents.Constants;
+import com.android.systemui.recents.RecentsConfiguration;
 import com.android.systemui.recents.misc.NamedCounter;
 
 import java.util.ArrayList;
@@ -204,10 +205,10 @@ public class TaskStack {
                 removeGroup(group);
             }
             // Update the lock-to-app state
-            t.canLockToTask = false;
+            t.lockToThisTask = false;
             Task newFrontMostTask = getFrontMostTask();
-            if (newFrontMostTask != null) {
-                newFrontMostTask.canLockToTask = true;
+            if (newFrontMostTask != null && newFrontMostTask.lockToTaskEnabled) {
+                newFrontMostTask.lockToThisTask = true;
             }
             if (mCb != null) {
                 // Notify that a task has been removed
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java
index bd4ea90..34f0ada 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java
@@ -356,7 +356,7 @@ class TaskStackViewTouchHandler implements SwipeHelper.Callback {
         // Disallow touch events from this task view
         tv.setTouchEnabled(false);
         // Hide the footer
-        tv.animateFooterVisibility(false, mSv.mConfig.taskViewLockToAppShortAnimDuration, 0);
+        tv.animateFooterVisibility(false, mSv.mConfig.taskViewLockToAppShortAnimDuration);
         // Disallow parents from intercepting touch events
         final ViewParent parent = mSv.getParent();
         if (parent != null) {
@@ -394,7 +394,7 @@ class TaskStackViewTouchHandler implements SwipeHelper.Callback {
         // Re-enable touch events from this task view
         tv.setTouchEnabled(true);
         // Restore the footer
-        tv.animateFooterVisibility(true, mSv.mConfig.taskViewLockToAppShortAnimDuration, 0);
+        tv.animateFooterVisibility(true, mSv.mConfig.taskViewLockToAppShortAnimDuration);
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
index 199d3f3..e973717 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
@@ -32,11 +32,9 @@ import android.view.ViewPropertyAnimator;
 import android.view.animation.AccelerateInterpolator;
 import android.widget.FrameLayout;
 import com.android.systemui.R;
-import com.android.systemui.recents.misc.Console;
 import com.android.systemui.recents.Constants;
 import com.android.systemui.recents.RecentsConfiguration;
 import com.android.systemui.recents.model.Task;
-import com.android.systemui.recents.model.TaskStack;
 
 
 /* A task view */
@@ -314,7 +312,7 @@ public class TaskView extends FrameLayout implements Task.TaskCallbacks, View.On
                         mBarView.startEnterRecentsAnimation(0, mEnableThumbnailClip);
                         setVisibility(View.VISIBLE);
                         // Animate the footer into view
-                        animateFooterVisibility(true, mConfig.taskBarEnterAnimDuration, 0);
+                        animateFooterVisibility(true, mConfig.taskBarEnterAnimDuration);
                         // Decrement the post animation trigger
                         ctx.postAnimationTrigger.decrement();
                     }
@@ -363,8 +361,8 @@ public class TaskView extends FrameLayout implements Task.TaskCallbacks, View.On
                 ctx.postAnimationTrigger.increment();
 
                 // Animate the footer into view
-                animateFooterVisibility(true, mConfig.taskBarEnterAnimDuration,
-                        mConfig.taskBarEnterAnimDelay);
+                animateFooterVisibility(true, mConfig.taskBarEnterAnimDuration
+                );
             } else {
                 mEnableThumbnailClip.run();
             }
@@ -398,14 +396,14 @@ public class TaskView extends FrameLayout implements Task.TaskCallbacks, View.On
             ctx.postAnimationTrigger.increment();
 
             // Animate the footer into view
-            animateFooterVisibility(true, mConfig.taskViewEnterFromHomeDuration,
-                    mConfig.taskBarEnterAnimDelay);
+            animateFooterVisibility(true, mConfig.taskViewEnterFromHomeDuration
+            );
         } else {
             // Otherwise, just enable the thumbnail clip
             mEnableThumbnailClip.run();
 
             // Animate the footer into view
-            animateFooterVisibility(true, 0, 0);
+            animateFooterVisibility(true, 0);
         }
     }
 
@@ -555,8 +553,8 @@ public class TaskView extends FrameLayout implements Task.TaskCallbacks, View.On
     }
 
     /** Animates the footer into and out of view. */
-    public void animateFooterVisibility(boolean visible, int duration, int delay) {
-        if (!mTask.canLockToTask) {
+    public void animateFooterVisibility(boolean visible, int duration) {
+        if (!mTask.lockToThisTask) {
             if (mLockToAppButtonView.getVisibility() == View.VISIBLE) {
                 mLockToAppButtonView.setVisibility(View.INVISIBLE);
             }
@@ -684,9 +682,9 @@ public class TaskView extends FrameLayout implements Task.TaskCallbacks, View.On
         mTask.setCallbacks(this);
         if (getMeasuredWidth() == 0) {
             // If we haven't yet measured, we should just set the footer height with any animation
-            animateFooterVisibility(t.canLockToTask, 0, 0);
+            animateFooterVisibility(t.lockToThisTask, 0);
         } else {
-            animateFooterVisibility(t.canLockToTask, mConfig.taskViewLockToAppLongAnimDuration, 0);
+            animateFooterVisibility(t.lockToThisTask, mConfig.taskViewLockToAppLongAnimDuration);
         }
     }
 
@@ -754,7 +752,7 @@ public class TaskView extends FrameLayout implements Task.TaskCallbacks, View.On
                         }
                     });
                     // Hide the footer
-                    tv.animateFooterVisibility(false, mConfig.taskViewRemoveAnimDuration, 0);
+                    tv.animateFooterVisibility(false, mConfig.taskViewRemoveAnimDuration);
                 } else if (v == tv || v == mLockToAppButtonView) {
                     mCb.onTaskViewClicked(tv, tv.getTask(), (v == mLockToAppButtonView));
                 }