1 files changed, 98 insertions, 0 deletions
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarKeyguardController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarKeyguardController.java
new file mode 100644
index 0000000000..5fc0695564
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarKeyguardController.java
@@ -0,0 +1,98 @@
+package com.android.launcher3.taskbar;
+
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_BACK_DISABLED;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_BOUNCER_SHOWING;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_DEVICE_DOZING;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_HOME_DISABLED;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_OVERVIEW_DISABLED;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING_OCCLUDED;
+
+import android.app.KeyguardManager;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+
+/**
+ * Controller for managing keyguard state for taskbar
+ */
+public class TaskbarKeyguardController {
+
+    private static final int KEYGUARD_SYSUI_FLAGS = SYSUI_STATE_BOUNCER_SHOWING |
+            SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING | SYSUI_STATE_DEVICE_DOZING |
+            SYSUI_STATE_OVERVIEW_DISABLED | SYSUI_STATE_HOME_DISABLED |
+            SYSUI_STATE_BACK_DISABLED | SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING_OCCLUDED;
+
+    private final TaskbarActivityContext mContext;
+    private int mKeyguardSysuiFlags;
+    private boolean mBouncerShowing;
+    private NavbarButtonsViewController mNavbarButtonsViewController;
+    private final KeyguardManager mKeyguardManager;
+    private boolean mIsScreenOff;
+
+    private final BroadcastReceiver mScreenOffReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            mIsScreenOff = true;
+        }
+    };
+
+    public TaskbarKeyguardController(TaskbarActivityContext context) {
+        mContext = context;
+        mKeyguardManager = mContext.getSystemService(KeyguardManager.class);
+    }
+
+    public void init(NavbarButtonsViewController navbarButtonUIController) {
+        mNavbarButtonsViewController = navbarButtonUIController;
+        mContext.registerReceiver(mScreenOffReceiver, new IntentFilter(Intent.ACTION_SCREEN_OFF));
+    }
+
+    public void updateStateForSysuiFlags(int systemUiStateFlags) {
+        boolean bouncerShowing = (systemUiStateFlags & SYSUI_STATE_BOUNCER_SHOWING) != 0;
+        boolean keyguardShowing = (systemUiStateFlags & SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING)
+                != 0;
+        boolean keyguardOccluded =
+                (systemUiStateFlags & SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING_OCCLUDED) != 0;
+        boolean dozing = (systemUiStateFlags & SYSUI_STATE_DEVICE_DOZING) != 0;
+
+        int interestingKeyguardFlags = systemUiStateFlags & KEYGUARD_SYSUI_FLAGS;
+        if (interestingKeyguardFlags == mKeyguardSysuiFlags) {
+            return;
+        }
+        mKeyguardSysuiFlags = interestingKeyguardFlags;
+
+        mBouncerShowing = bouncerShowing;
+
+        mNavbarButtonsViewController.setKeyguardVisible(keyguardShowing || dozing,
+                keyguardOccluded);
+        updateIconsForBouncer();
+    }
+
+    public boolean isScreenOff() {
+        return mIsScreenOff;
+    }
+
+    public void setScreenOn() {
+        mIsScreenOff = false;
+    }
+
+    /**
+     * Hides/shows taskbar when keyguard is up
+     */
+    private void updateIconsForBouncer() {
+        boolean disableBack = (mKeyguardSysuiFlags & SYSUI_STATE_BACK_DISABLED) != 0;
+        boolean disableRecent = (mKeyguardSysuiFlags & SYSUI_STATE_OVERVIEW_DISABLED) != 0;
+        boolean disableHome = (mKeyguardSysuiFlags & SYSUI_STATE_HOME_DISABLED) != 0;
+        boolean onlyBackEnabled = !disableBack && disableRecent && disableHome;
+
+        boolean showBackForBouncer = onlyBackEnabled &&
+                mKeyguardManager.isDeviceSecure() &&
+                mBouncerShowing;
+        mNavbarButtonsViewController.setBackForBouncer(showBackForBouncer);
+    }
+
+    public void onDestroy() {
+        mContext.unregisterReceiver(mScreenOffReceiver);
+    }
+}