aura: Do not show tooltips if mouse cursor is hidden.

ash/tooltips/tooltip_controller_unittest.cc

 // Copyright (c) 2012 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 "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/tooltips/tooltip_controller.h"
 #include "base/utf_string_conversions.h"
 #include "ui/aura/client/tooltip_client.h"
 #include "ui/aura/root_window.h"
@@ skipping 207 matching lines @@
   FireTooltipTimer();
   EXPECT_FALSE(IsTooltipVisible());
 
   // Enable tooltips back and check again.
   GetController()->SetTooltipsEnabled(true);
   EXPECT_FALSE(IsTooltipVisible());
   FireTooltipTimer();
   EXPECT_TRUE(IsTooltipVisible());
 }
 
+TEST_F(TooltipControllerTest, HideTooltipWhenCursorHidden) {
+  scoped_ptr<views::Widget> widget(CreateNewWidget());
+  TooltipTestView* view = new TooltipTestView;
+  AddViewToWidgetAndResize(widget.get(), view);
+  view->set_tooltip_text(ASCIIToUTF16("Tooltip Text"));
+  EXPECT_EQ(ASCIIToUTF16(""), GetTooltipText());
+  EXPECT_EQ(NULL, GetTooltipWindow());
+
+  aura::test::EventGenerator generator(Shell::GetRootWindow());
+  generator.MoveMouseRelativeTo(widget->GetNativeView(),
+                                view->bounds().CenterPoint());
+  string16 expected_tooltip = ASCIIToUTF16("Tooltip Text");
+
+  // Fire tooltip timer so tooltip becomes visible.
+  FireTooltipTimer();
+  EXPECT_TRUE(IsTooltipVisible());
+
+  // Hide the cursor and check again.
+  Shell::GetRootWindow()->ShowCursor(false);
+  FireTooltipTimer();
+  EXPECT_FALSE(IsTooltipVisible());
+
+  // Show the cursor and re-check.
+  Shell::GetRootWindow()->ShowCursor(true);
+  FireTooltipTimer();
+  EXPECT_TRUE(IsTooltipVisible());
+}
+
 TEST_F(TooltipControllerTest, TrimTooltipToFitTests) {
   string16 tooltip;
   int max_width, line_count, expect_lines;
   int max_pixel_width = 400;  // copied from constants in tooltip_controller.cc
   int max_lines = 10;  // copied from constants in tooltip_controller.cc
   gfx::Font font = GetDefaultFont();
   size_t tooltip_len;
 
   // Error in computed size vs. expected size should not be greater than the
   // size of the longest word.
@@ skipping 74 matching lines @@
   max_width = line_count = -1;
   tooltip = ASCIIToUTF16("Small  Tool  t\tip");
   TrimTooltipToFit(&tooltip, &max_width, &line_count, 0, 0);
   EXPECT_EQ(font.GetStringWidth(ASCIIToUTF16("Small  Tool  t\tip")), max_width);
   EXPECT_EQ(1, line_count);
   EXPECT_EQ(ASCIIToUTF16("Small  Tool  t\tip"), tooltip);
 }
 
 }  // namespace test
 }  // namespace ash