Map META+T shortcut to toggling task bar

Bug: 246660615
Test: N/A
Change-Id: I5327afc388861732fd02c66e6c0ed249b7d46441

core/java/com/android/internal/statusbar/IStatusBar.aidl

@@ -56,6 +56,7 @@ oneway interface IStatusBar
     void showRecentApps(boolean triggeredFromAltTab);
     void hideRecentApps(boolean triggeredFromAltTab, boolean triggeredFromHomeKey);
     void toggleRecentApps();
+    void toggleTaskbar();
     void toggleSplitScreen();
     void preloadRecentApps();
     void cancelPreloadRecentApps();

packages/SystemUI/shared/src/com/android/systemui/shared/recents/IOverviewProxy.aidl

@@ -104,4 +104,9 @@ oneway interface IOverviewProxy {
       * Sent when the surface for navigation bar is created or changed
       */
      void onNavigationBarSurface(in SurfaceControl surface) = 26;
+
+     /**
+      * Sent when the task bar stash state is toggled.
+      */
+     void onTaskbarToggled() = 27;
 }

packages/SystemUI/src/com/android/systemui/navigationbar/TaskbarDelegate.java

@@ -431,6 +431,19 @@ public class TaskbarDelegate implements CommandQueue.Callbacks,
         }
     }
 
+    @Override
+    public void toggleTaskbar() {
+        if (mOverviewProxyService.getProxy() == null) {
+            return;
+        }
+
+        try {
+            mOverviewProxyService.getProxy().onTaskbarToggled();
+        } catch (RemoteException e) {
+            Log.e(TAG, "onTaskbarToggled() failed", e);
+        }
+    }
+
     private void clearTransient() {
         if (mTaskbarTransientShowing) {
             mTaskbarTransientShowing = false;

packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java

@@ -168,6 +168,7 @@ public class CommandQueue extends IStatusBar.Stub implements
     private static final int MSG_GO_TO_FULLSCREEN_FROM_SPLIT = 70 << MSG_SHIFT;
     private static final int MSG_ENTER_STAGE_SPLIT_FROM_RUNNING_APP = 71 << MSG_SHIFT;
     private static final int MSG_SHOW_MEDIA_OUTPUT_SWITCHER = 72 << MSG_SHIFT;
+    private static final int MSG_TOGGLE_TASKBAR = 73 << MSG_SHIFT;
 
     public static final int FLAG_EXCLUDE_NONE = 0;
     public static final int FLAG_EXCLUDE_SEARCH_PANEL = 1 << 0;
@@ -229,6 +230,7 @@ public class CommandQueue extends IStatusBar.Stub implements
                 @BackDispositionMode int backDisposition, boolean showImeSwitcher) { }
         default void showRecentApps(boolean triggeredFromAltTab) { }
         default void hideRecentApps(boolean triggeredFromAltTab, boolean triggeredFromHomeKey) { }
+        default void toggleTaskbar() { }
         default void toggleRecentApps() { }
         default void toggleSplitScreen() { }
         default void preloadRecentApps() { }
@@ -715,6 +717,13 @@ public class CommandQueue extends IStatusBar.Stub implements
         }
     }
 
+    public void toggleTaskbar() {
+        synchronized (mLock) {
+            mHandler.removeMessages(MSG_TOGGLE_TASKBAR);
+            mHandler.obtainMessage(MSG_TOGGLE_TASKBAR, 0, 0, null).sendToTarget();
+        }
+    }
+
     public void toggleRecentApps() {
         synchronized (mLock) {
             mHandler.removeMessages(MSG_TOGGLE_RECENT_APPS);
@@ -1416,6 +1425,11 @@ public class CommandQueue extends IStatusBar.Stub implements
                         mCallbacks.get(i).hideRecentApps(msg.arg1 != 0, msg.arg2 != 0);
                     }
                     break;
+                case MSG_TOGGLE_TASKBAR:
+                    for (int i = 0; i < mCallbacks.size(); i++) {
+                        mCallbacks.get(i).toggleTaskbar();
+                    }
+                    break;
                 case MSG_TOGGLE_RECENT_APPS:
                     for (int i = 0; i < mCallbacks.size(); i++) {
                         mCallbacks.get(i).toggleRecentApps();

services/core/java/com/android/server/policy/PhoneWindowManager.java

@@ -2989,6 +2989,12 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                     return key_consumed;
                 }
                 break;
+            case KeyEvent.KEYCODE_T:
+                if (down && event.isMetaPressed()) {
+                    toggleTaskbar();
+                    return key_consumed;
+                }
+                break;
             case KeyEvent.KEYCODE_DPAD_UP:
                 if (down && event.isMetaPressed() && event.isCtrlPressed() && repeatCount == 0) {
                     StatusBarManagerInternal statusbar = getStatusBarManagerInternal();
@@ -3660,6 +3666,13 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         }
     }
 
+    private void toggleTaskbar() {
+        StatusBarManagerInternal statusbar = getStatusBarManagerInternal();
+        if (statusbar != null) {
+            statusbar.toggleTaskbar();
+        }
+    }
+
     private void toggleRecentApps() {
         mPreloadedRecentApps = false; // preloading no longer needs to be canceled
         StatusBarManagerInternal statusbar = getStatusBarManagerInternal();

services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java

@@ -122,6 +122,10 @@ public interface StatusBarManagerInternal {
      */
     void onEmergencyActionLaunchGestureDetected();
 
+    /** Toggle the task bar stash state. */
+    void toggleTaskbar();
+
+    /** Toggle recents. */
     void toggleRecentApps();
 
     void setCurrentUser(int newUserId);

services/core/java/com/android/server/statusbar/StatusBarManagerService.java

@@ -417,6 +417,15 @@ public class StatusBarManagerService extends IStatusBarService.Stub implements D
             }
         }
 
+        @Override
+        public void toggleTaskbar() {
+            if (mBar != null) {
+                try {
+                    mBar.toggleTaskbar();
+                } catch (RemoteException ex) {}
+            }
+        }
+
         @Override
         public void toggleRecentApps() {
             if (mBar != null) {