Don't activate a window if screen is locked.

ui/aura/window_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/aura/window.h"
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/stringprintf.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 642 matching lines @@
       gfx::Rect(50, 50, 450, 450), w11.get()));
   scoped_ptr<Window> w12(CreateTestWindowWithDelegate(NULL, 12,
       gfx::Rect(0, 0, 500, 500), w1.get()));
   scoped_ptr<Window> w121(CreateTestWindowWithDelegate(&d121, 121,
       gfx::Rect(150, 150, 50, 50), NULL));
 
   w12->set_stops_event_propagation(true);
   EXPECT_EQ(w11.get(), w1->GetEventHandlerForPoint(gfx::Point(10, 10)));
 
   EXPECT_TRUE(w111->CanFocus());
+  EXPECT_TRUE(w111->CanReceiveEvents());
   w111->Focus();
   EXPECT_EQ(w111.get(), w1->GetFocusManager()->GetFocusedWindow());
 
   w12->AddChild(w121.get());
 
   EXPECT_EQ(NULL, w1->GetEventHandlerForPoint(gfx::Point(10, 10)));
   EXPECT_EQ(w121.get(), w1->GetEventHandlerForPoint(gfx::Point(175, 175)));
 
   // It should be possible to focus w121 since it is at or above the
   // consumes_events_ window.
   EXPECT_TRUE(w121->CanFocus());
+  EXPECT_TRUE(w121->CanReceiveEvents());
   w121->Focus();
   EXPECT_EQ(w121.get(), w1->GetFocusManager()->GetFocusedWindow());
 
   // An attempt to focus 111 should be ignored and w121 should retain focus,
   // since a consumes_events_ window with a child is in the z-index above w111.
-  EXPECT_FALSE(w111->CanFocus());
+  EXPECT_FALSE(w111->CanReceiveEvents());
   w111->Focus();
   EXPECT_EQ(w121.get(), w1->GetFocusManager()->GetFocusedWindow());
+
+  // Hiding w121 should make 111 focusable.
+  w121->Hide();
+  EXPECT_TRUE(w111->CanFocus());
+  EXPECT_TRUE(w111->CanReceiveEvents());
+  w111->Focus();
+  EXPECT_EQ(w111.get(), w1->GetFocusManager()->GetFocusedWindow());
 }
 
 TEST_F(WindowTest, IgnoreEventsTest) {
   TestWindowDelegate d11;
   TestWindowDelegate d12;
   TestWindowDelegate d111;
   TestWindowDelegate d121;
   scoped_ptr<Window> w1(CreateTestWindowWithDelegate(NULL, 1,
       gfx::Rect(0, 0, 500, 500), NULL));
   scoped_ptr<Window> w11(CreateTestWindowWithDelegate(&d11, 11,
@@ skipping 329 matching lines @@
   EXPECT_EQ("name=test old=1 new=2", PropertyChangeInfoAndClear());
   w1->SetProperty(key, NULL);
   EXPECT_EQ("name=test old=2 new=0", PropertyChangeInfoAndClear());
 
   // Sanity check to see if |PropertyChangeInfoAndClear| really clears.
   EXPECT_EQ("name= old=0 new=0", PropertyChangeInfoAndClear());
 }
 
 }  // namespace test
 }  // namespace aura