Aura tooltips do not move on mouse move in case of many neighboring views with the same label

ui/views/corewm/tooltip_controller_unittest.cc

Index: ui/views/corewm/tooltip_controller_unittest.cc
diff --git a/ui/views/corewm/tooltip_controller_unittest.cc b/ui/views/corewm/tooltip_controller_unittest.cc
index f09a2a0533e92f0f1d25e618914cbc56f33426d4..d5cd9db304cb318cc46b5085363ef0745ed8a9c9 100644
--- a/ui/views/corewm/tooltip_controller_unittest.cc
+++ b/ui/views/corewm/tooltip_controller_unittest.cc
@@ -671,6 +671,7 @@ class TestTooltip : public Tooltip {
                        const base::string16& tooltip_text,
                        const gfx::Point& location) OVERRIDE {
     tooltip_text_ = tooltip_text;
+    location_ = location;
   }
   virtual void Show() OVERRIDE {
     is_visible_ = true;
@@ -681,10 +682,12 @@ class TestTooltip : public Tooltip {
   virtual bool IsVisible() OVERRIDE {
     return is_visible_;
   }
+  const gfx::Point& location() { return location_; }
 
  private:
   bool is_visible_;
   base::string16 tooltip_text_;
+  gfx::Point location_;
 
   DISALLOW_COPY_AND_ASSIGN(TestTooltip);
 };
@@ -766,6 +769,173 @@ TEST_F(TooltipControllerTest2, CloseOnCancelMode) {
   EXPECT_TRUE(helper_->GetTooltipWindow() == NULL);
 }
 
+// Use for tests that need both views and a TestTooltip.
+class TooltipControllerTest3 : public aura::test::AuraTestBase {
+ public:
+  TooltipControllerTest3() : test_tooltip_(new TestTooltip) {}
+  virtual ~TooltipControllerTest3() {}
+
+  virtual void SetUp() OVERRIDE {
+    wm_state_.reset(new wm::WMState);
+    aura::test::AuraTestBase::SetUp();
+
+    widget_.reset(CreateWidget(root_window()));
+    widget_->SetContentsView(new View);
+    view_ = new TooltipTestView;
+    widget_->GetContentsView()->AddChildView(view_);
+    view_->SetBoundsRect(widget_->GetContentsView()->GetLocalBounds());
+
+    generator_.reset(new aura::test::EventGenerator(GetRootWindow()));
+    controller_.reset(new TooltipController(
+        scoped_ptr<views::corewm::Tooltip>(test_tooltip_)));
+    GetRootWindow()->RemovePreTargetHandler(
+        static_cast<TooltipController*>(aura::client::GetTooltipClient(
+            widget_->GetNativeWindow()->GetRootWindow())));
+    GetRootWindow()->AddPreTargetHandler(controller_.get());
+    helper_.reset(new TooltipControllerTestHelper(controller_.get()));
+    SetTooltipClient(GetRootWindow(), controller_.get());
+  }
+
+  virtual void TearDown() OVERRIDE {
+    GetRootWindow()->RemovePreTargetHandler(controller_.get());
+    aura::client::SetTooltipClient(GetRootWindow(), NULL);
+
+    controller_.reset();
+    generator_.reset();
+    helper_.reset();
+    widget_.reset();
+    aura::test::AuraTestBase::TearDown();
+    wm_state_.reset();
+  }
+
+  aura::Window* GetWindow() { return widget_->GetNativeWindow(); }
+
+ protected:
+  // Owned by |controller_|.
+  TestTooltip* test_tooltip_;
+  scoped_ptr<TooltipControllerTestHelper> helper_;
+  scoped_ptr<aura::test::EventGenerator> generator_;
+  scoped_ptr<views::Widget> widget_;
+  TooltipTestView* view_;
+
+ private:
+  scoped_ptr<TooltipController> controller_;
+  scoped_ptr<wm::WMState> wm_state_;
+
+#if defined(OS_WIN)
+  ui::ScopedOleInitializer ole_initializer_;
+#endif
+
+  aura::Window* GetRootWindow() { return GetWindow()->GetRootWindow(); }
+
+  DISALLOW_COPY_AND_ASSIGN(TooltipControllerTest3);
+};
+
+TEST_F(TooltipControllerTest3, TooltipPositionChangesOnTwoViewsWithSameLabel) {
+  // Owned by |view_|.
+  // These two views have the same tooltip text
+  TooltipTestView* v1 = new TooltipTestView;
+  TooltipTestView* v2 = new TooltipTestView;
+  // v1_1 is a view inside v1 that has an identical tooltip text to that of v1
+  // and v2
+  TooltipTestView* v1_1 = new TooltipTestView;
+  // v2_1 is a view inside v2 that has an identical tooltip text to that of v1
+  // and v2
+  TooltipTestView* v2_1 = new TooltipTestView;
+  // v2_2 is a view inside v2 with the tooltip text different from all the
+  // others
+  TooltipTestView* v2_2 = new TooltipTestView;
+
+  // Setup all the views' relations
+  view_->AddChildView(v1);
+  view_->AddChildView(v2);
+  v1->AddChildView(v1_1);
+  v2->AddChildView(v2_1);
+  v2->AddChildView(v2_2);
+  const base::string16 reference_string(
+      base::ASCIIToUTF16("Identical Tooltip Text"));
+  const base::string16 alternative_string(
+      base::ASCIIToUTF16("Another Shrubbery"));
+  v1->set_tooltip_text(reference_string);
+  v2->set_tooltip_text(reference_string);
+  v1_1->set_tooltip_text(reference_string);
+  v2_1->set_tooltip_text(reference_string);
+  v2_2->set_tooltip_text(alternative_string);
+
+  // Set views' bounds
+  gfx::Rect view_bounds(view_->GetLocalBounds());
+  view_bounds.set_height(view_bounds.height() / 2);
+  v1->SetBoundsRect(view_bounds);
+  v1_1->SetBounds(0, 0, 3, 3);
+  view_bounds.set_y(view_bounds.height());
+  v2->SetBoundsRect(view_bounds);
+  v2_2->SetBounds(view_bounds.width() - 3, view_bounds.height() - 3, 3, 3);
+  v2_1->SetBounds(0, 0, 3, 3);
+
+  // Test whether a toolbar appears on v1
+  gfx::Point center = v1->bounds().CenterPoint();
+  generator_->MoveMouseRelativeTo(GetWindow(), center);
+  helper_->FireTooltipTimer();
+  EXPECT_TRUE(helper_->IsTooltipVisible());
+  EXPECT_EQ(reference_string, helper_->GetTooltipText());
+  gfx::Point tooltip_bounds1 = test_tooltip_->location();
+
+  // Test whether the toolbar changes position on mouse over v2
+  center = v2->bounds().CenterPoint();
+  generator_->MoveMouseRelativeTo(GetWindow(), center);
+  helper_->FireTooltipTimer();
+  EXPECT_TRUE(helper_->IsTooltipVisible());
+  EXPECT_EQ(reference_string, helper_->GetTooltipText());
+  gfx::Point tooltip_bounds2 = test_tooltip_->location();
+
+  EXPECT_NE(tooltip_bounds1, gfx::Point());
+  EXPECT_NE(tooltip_bounds2, gfx::Point());
+  EXPECT_NE(tooltip_bounds1, tooltip_bounds2);
+
+  // Test if the toolbar does not change position on encountering a contained
+  // view with the same tooltip text
+  center = v2_1->GetLocalBounds().CenterPoint();
+  views::View::ConvertPointToTarget(v2_1, view_, &center);
+  generator_->MoveMouseRelativeTo(GetWindow(), center);
+  helper_->FireTooltipTimer();
+  gfx::Point tooltip_bounds2_1 = test_tooltip_->location();
+
+  EXPECT_NE(tooltip_bounds2, tooltip_bounds2_1);
+  EXPECT_TRUE(helper_->IsTooltipVisible());
+  EXPECT_EQ(reference_string, helper_->GetTooltipText());
+
+  // Test if the toolbar changes position on encountering a contained
+  // view with a different tooltip text
+  center = v2_2->GetLocalBounds().CenterPoint();
+  views::View::ConvertPointToTarget(v2_2, view_, &center);
+  generator_->MoveMouseRelativeTo(GetWindow(), center);
+  helper_->FireTooltipTimer();
+  gfx::Point tooltip_bounds2_2 = test_tooltip_->location();
+
+  EXPECT_NE(tooltip_bounds2_1, tooltip_bounds2_2);
+  EXPECT_TRUE(helper_->IsTooltipVisible());
+  EXPECT_EQ(alternative_string, helper_->GetTooltipText());
+
+  // Test if moving from a view that is contained by a larger view, both with
+  // the same tooltip text, does not change tooltip's position.
+  center = v1_1->GetLocalBounds().CenterPoint();
+  views::View::ConvertPointToTarget(v1_1, view_, &center);
+  generator_->MoveMouseRelativeTo(GetWindow(), center);
+  helper_->FireTooltipTimer();
+  gfx::Point tooltip_bounds1_1 = test_tooltip_->location();
+
+  EXPECT_TRUE(helper_->IsTooltipVisible());
+  EXPECT_EQ(reference_string, helper_->GetTooltipText());
+
+  center = v1->bounds().CenterPoint();
+  generator_->MoveMouseRelativeTo(GetWindow(), center);
+  helper_->FireTooltipTimer();
+  tooltip_bounds1 = test_tooltip_->location();
+
+  EXPECT_NE(tooltip_bounds1_1, tooltip_bounds1);
+  EXPECT_EQ(reference_string, helper_->GetTooltipText());
+}
+
 }  // namespace test
 }  // namespace corewm
 }  // namespace views