commit d2e7e355d836f18adcdb44db9c1931d1c3663ef1
author Jun Mukai <mukai@google.com> Wed Jul 22 17:14:02 2015 -0700
committer Jun Mukai <mukai@google.com> Thu Jul 23 13:31:04 2015 -0700
tree 4642150449ae142697409382e6400f966eee4b8d
parent 0867d2627091ab23c52d3ee6d82106b80534bd95

Allow sticky immersive mode by mouse hover.

When the app enters into the immersive mode, swipe down from the
top edge makes immersive_sticky (showing transient status bar),
but this is hardly done by mouse. As is discussed in the bug,
we want to make the same effect for mouse hover at the very top
line of the screen for 500msec.

Same applied to navigation bar with the bottom of the screen.

Bug: 20093789
Change-Id: If4484b5bcee567ea89c28ed06807564cb8f9ccef

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

diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index dc3e2d6..9716c84 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -635,6 +635,10 @@
     private static final int MSG_POWER_DELAYED_PRESS = 13;
     private static final int MSG_POWER_LONG_PRESS = 14;
     private static final int MSG_UPDATE_DREAMING_SLEEP_TOKEN = 15;
+    private static final int MSG_REQUEST_TRANSIENT_BARS = 16;
+
+    private static final int MSG_REQUEST_TRANSIENT_BARS_ARG_STATUS = 0;
+    private static final int MSG_REQUEST_TRANSIENT_BARS_ARG_NAVIGATION = 1;
 
     private class PolicyHandler extends Handler {
         @Override
@@ -686,6 +690,13 @@
                 case MSG_UPDATE_DREAMING_SLEEP_TOKEN:
                     updateDreamingSleepToken(msg.arg1 != 0);
                     break;
+                case MSG_REQUEST_TRANSIENT_BARS:
+                    WindowState targetBar = (msg.arg1 == MSG_REQUEST_TRANSIENT_BARS_ARG_STATUS) ?
+                            mStatusBar : mNavigationBar;
+                    if (targetBar != null) {
+                        requestTransientBars(targetBar);
+                    }
+                    break;
             }
         }
     }
@@ -1503,6 +1514,24 @@
                     public void onUpOrCancel() {
                         mOrientationListener.onTouchEnd();
                     }
+                    @Override
+                    public void onMouseHoverAtTop() {
+                        mHandler.removeMessages(MSG_REQUEST_TRANSIENT_BARS);
+                        Message msg = mHandler.obtainMessage(MSG_REQUEST_TRANSIENT_BARS);
+                        msg.arg1 = MSG_REQUEST_TRANSIENT_BARS_ARG_STATUS;
+                        mHandler.sendMessageDelayed(msg, 500);
+                    }
+                    @Override
+                    public void onMouseHoverAtBottom() {
+                        mHandler.removeMessages(MSG_REQUEST_TRANSIENT_BARS);
+                        Message msg = mHandler.obtainMessage(MSG_REQUEST_TRANSIENT_BARS);
+                        msg.arg1 = MSG_REQUEST_TRANSIENT_BARS_ARG_NAVIGATION;
+                        mHandler.sendMessageDelayed(msg, 500);
+                    }
+                    @Override
+                    public void onMouseLeaveFromEdge() {
+                        mHandler.removeMessages(MSG_REQUEST_TRANSIENT_BARS);
+                    }
                 });
         mImmersiveModeConfirmation = new ImmersiveModeConfirmation(mContext);
         mWindowManagerFuncs.registerPointerEventListener(mSystemGestures);