Update keyguard to send userActivity events

Since the new PowerManager changes are in, keyguard needs to handle
keeping the screen awake.  This change does this in a few places in
addition to the existing security screens:

- when the widget page changes
- when the user interacts with any widget other than the status widget
- when the user taps on the target in the selector screen

Fixes bug 7273646

Change-Id: If4c76a38e9b886dd359ba96cd2aae03652007b66

Author: Jim Miller

policy/src/com/android/internal/policy/impl/keyguard/KeyguardHostView.java

@@ -724,6 +724,7 @@ private void maybePopulateWidgets() {
         inflateAndAddUserSelectorWidgetIfNecessary();
 
         // Add status widget
+        View statusView = null;
         int statusWidgetId = mLockPatternUtils.getStatusWidget();
         if (statusWidgetId != -1) {
             addWidget(statusWidgetId);
@@ -737,6 +738,16 @@ private void maybePopulateWidgets() {
             mAppWidgetContainer.removeView(newStatusWidget);
             newStatusWidget.setId(R.id.keyguard_status_view);
             mAppWidgetContainer.addView(newStatusWidget, oldStatusWidgetPosition);
+            statusView = newStatusWidget;
+        } else {
+            statusView = findViewById(R.id.keyguard_status_view);
+        }
+
+        // Disable all user interaction on status view. This is done to prevent falsing in the
+        // pocket from triggering useractivity and prevents 3rd party replacement widgets
+        // from responding to user interaction while in this position.
+        if (statusView instanceof KeyguardWidgetFrame) {
+            ((KeyguardWidgetFrame) statusView).setDisableUserInteraction(true);
         }
 
         // Add user-selected widget

policy/src/com/android/internal/policy/impl/keyguard/KeyguardWidgetFrame.java

@@ -26,7 +26,10 @@
 import android.graphics.PorterDuffXfermode;
 import android.graphics.Rect;
 import android.graphics.Shader;
+import android.os.PowerManager;
+import android.os.SystemClock;
 import android.util.AttributeSet;
+import android.view.MotionEvent;
 import android.widget.FrameLayout;
 
 import com.android.internal.R;
@@ -45,6 +48,8 @@ public class KeyguardWidgetFrame extends FrameLayout {
     private float mOverScrollAmount = 0f;
     private final Rect mForegroundRect = new Rect();
     private int mForegroundAlpha = 0;
+    private PowerManager mPowerManager;
+    private boolean mDisableInteraction;
 
     public KeyguardWidgetFrame(Context context) {
         this(context, null, 0);
@@ -56,6 +61,9 @@ public KeyguardWidgetFrame(Context context, AttributeSet attrs) {
 
     public KeyguardWidgetFrame(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
+
+        mPowerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
+
         Resources res = context.getResources();
         int hPadding = res.getDimensionPixelSize(R.dimen.kg_widget_pager_horizontal_padding);
         int topPadding = res.getDimensionPixelSize(R.dimen.kg_widget_pager_top_padding);
@@ -65,6 +73,19 @@ public KeyguardWidgetFrame(Context context, AttributeSet attrs, int defStyle) {
         mGradientPaint.setXfermode(sAddBlendMode);
     }
 
+    public void setDisableUserInteraction(boolean disabled) {
+        mDisableInteraction = disabled;
+    }
+
+    @Override
+    public boolean onInterceptTouchEvent(MotionEvent ev) {
+        if (!mDisableInteraction) {
+            mPowerManager.userActivity(SystemClock.uptimeMillis(), false);
+            return super.onInterceptTouchEvent(ev);
+        }
+        return true;
+    }
+
     @Override
     protected void dispatchDraw(Canvas canvas) {
         super.dispatchDraw(canvas);

policy/src/com/android/internal/policy/impl/keyguard/KeyguardWidgetRegion.java

@@ -16,6 +16,8 @@
 package com.android.internal.policy.impl.keyguard;
 
 import android.content.Context;
+import android.os.PowerManager;
+import android.os.SystemClock;
 import android.util.AttributeSet;
 import android.view.View;
 import android.view.ViewGroup;
@@ -29,6 +31,7 @@ public class KeyguardWidgetRegion extends LinearLayout implements PageSwitchList
     KeyguardGlowStripView mRightStrip;
     KeyguardWidgetPager mPager;
     private int mPage = 0;
+    private PowerManager mPowerManager;
 
     public KeyguardWidgetRegion(Context context) {
         this(context, null, 0);
@@ -40,6 +43,7 @@ public KeyguardWidgetRegion(Context context, AttributeSet attrs) {
 
     public KeyguardWidgetRegion(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
+        mPowerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
     }
 
     @Override
@@ -70,21 +74,25 @@ public void showPagingFeedback() {
 
     @Override
     public void onPageSwitch(View newPage, int newPageIndex) {
-        mPage = newPageIndex;
-
-        // If we're showing the default system status widget, then we want to hide the clock
-        boolean hideClock = false;
+        boolean showingStatusWidget = false;
         if ((newPage instanceof ViewGroup)) {
             ViewGroup vg = (ViewGroup) newPage;
             if (vg.getChildAt(0) instanceof KeyguardStatusView) {
-                hideClock = true;
+                showingStatusWidget = true;
             }
         }
 
-        if (hideClock) {
+        // Disable the status bar clock if we're showing the default status widget
+        if (showingStatusWidget) {
             setSystemUiVisibility(getSystemUiVisibility() | View.STATUS_BAR_DISABLE_CLOCK);
         } else {
             setSystemUiVisibility(getSystemUiVisibility() & ~View.STATUS_BAR_DISABLE_CLOCK);
         }
+
+        // Extend the display timeout if the user switches pages
+        if (mPage != newPageIndex) {
+            mPowerManager.userActivity(SystemClock.uptimeMillis(), false);
+            mPage = newPageIndex;
+        }
     }
 }