Prevents double-clicks on a tab close button from aslo maximizing the browser

ui/views/widget/desktop_aura/desktop_screen_x11_unittest.cc

Index: ui/views/widget/desktop_aura/desktop_screen_x11_unittest.cc
diff --git a/ui/views/widget/desktop_aura/desktop_screen_x11_unittest.cc b/ui/views/widget/desktop_aura/desktop_screen_x11_unittest.cc
index d0c0a8631c7c6dc6fa50dd90671a5881725ce74a..4e0c3647b138f077f700a1a9ae8eab5e31d1fb69 100644
--- a/ui/views/widget/desktop_aura/desktop_screen_x11_unittest.cc
+++ b/ui/views/widget/desktop_aura/desktop_screen_x11_unittest.cc
@@ -8,9 +8,12 @@
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "ui/aura/client/aura_constants.cc"
+#include "ui/aura/test/event_generator.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/aura/window_tree_host.h"
+#include "ui/base/hit_test.h"
 #include "ui/base/x/x11_util.h"
 #include "ui/events/platform/platform_event_dispatcher.h"
 #include "ui/events/platform/platform_event_source.h"
@@ -21,6 +24,34 @@
 #include "ui/views/widget/desktop_aura/desktop_native_widget_aura.h"
 #include "ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h"
 
+namespace {
+
+// Class which allows for the designation of non-client component targets of
+// hit tests.
+class TestDesktopNativeWidgetAura : public views::DesktopNativeWidgetAura {
+ public:
+  explicit TestDesktopNativeWidgetAura(
+      views::internal::NativeWidgetDelegate* delegate)
+      : views::DesktopNativeWidgetAura(delegate) {}
+  virtual ~TestDesktopNativeWidgetAura() {}
+
+  void set_window_component(int window_component) {
+    window_component_ = window_component;
+  }
+
+  // DesktopNativeWidgetAura:
+  virtual int GetNonClientComponent(const gfx::Point& point) const OVERRIDE {
+    return window_component_;
+  }
+
+ private:
+  int window_component_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestDesktopNativeWidgetAura);
+};
+
+}  // namespace
+
 namespace views {
 
 const int64 kFirstDisplay = 5321829;
@@ -125,12 +156,18 @@ class DesktopScreenX11Test : public views::ViewsTestBase,
     removed_display_.clear();
   }
 
-  Widget* BuildTopLevelDesktopWidget(const gfx::Rect& bounds) {
+  Widget* BuildTopLevelDesktopWidget(const gfx::Rect& bounds,
+      bool use_test_native_widget) {
     Widget* toplevel = new Widget;
     Widget::InitParams toplevel_params =
         CreateParams(Widget::InitParams::TYPE_WINDOW);
-    toplevel_params.native_widget =
-        new views::DesktopNativeWidgetAura(toplevel);
+    if (use_test_native_widget) {
+      toplevel_params.native_widget =
+          new TestDesktopNativeWidgetAura(toplevel);
+    } else {
+      toplevel_params.native_widget =
+          new views::DesktopNativeWidgetAura(toplevel);
+    }
     toplevel_params.bounds = bounds;
     toplevel_params.remove_standard_frame = true;
     toplevel->Init(toplevel_params);
@@ -275,10 +312,12 @@ TEST_F(DesktopScreenX11Test, GetPrimaryDisplay) {
 }
 
 TEST_F(DesktopScreenX11Test, GetWindowAtScreenPoint) {
-  Widget* window_one = BuildTopLevelDesktopWidget(gfx::Rect(110, 110, 10, 10));
-  Widget* window_two = BuildTopLevelDesktopWidget(gfx::Rect(150, 150, 10, 10));
+  Widget* window_one = BuildTopLevelDesktopWidget(gfx::Rect(110, 110, 10, 10),
+      false);
+  Widget* window_two = BuildTopLevelDesktopWidget(gfx::Rect(150, 150, 10, 10),
+      false);
   Widget* window_three =
-      BuildTopLevelDesktopWidget(gfx::Rect(115, 115, 20, 20));
+      BuildTopLevelDesktopWidget(gfx::Rect(115, 115, 20, 20), false);
 
   window_three->Show();
   window_two->Show();
@@ -317,8 +356,10 @@ TEST_F(DesktopScreenX11Test, GetDisplayNearestWindow) {
                                   gfx::Rect(640, 0, 1024, 768)));
   screen()->ProcessDisplayChange(displays);
 
-  Widget* window_one = BuildTopLevelDesktopWidget(gfx::Rect(10, 10, 10, 10));
-  Widget* window_two = BuildTopLevelDesktopWidget(gfx::Rect(650, 50, 10, 10));
+  Widget* window_one = BuildTopLevelDesktopWidget(gfx::Rect(10, 10, 10, 10),
+      false);
+  Widget* window_two = BuildTopLevelDesktopWidget(gfx::Rect(650, 50, 10, 10),
+      false);
 
   EXPECT_EQ(
       kFirstDisplay,
@@ -331,4 +372,87 @@ TEST_F(DesktopScreenX11Test, GetDisplayNearestWindow) {
   window_two->CloseNow();
 }
 
+// Tests that the window is maximized in response to a double click event.
+TEST_F(DesktopScreenX11Test, DoubleClickHeaderMaximizes) {
+  Widget* widget = BuildTopLevelDesktopWidget(gfx::Rect(0, 0, 100, 100), true);
+  widget->Show();
+  TestDesktopNativeWidgetAura* native_widget =
+      static_cast<TestDesktopNativeWidgetAura*>(widget->native_widget());
+  native_widget->set_window_component(HTCAPTION);
+
+  aura::Window* window = widget->GetNativeWindow();
+  window->SetProperty(aura::client::kCanMaximizeKey, true);
+
+  // Cast to superclass as DesktopWindowTreeHostX11 hide IsMaximized
+  DesktopWindowTreeHost* rwh =
+      DesktopWindowTreeHostX11::GetHostForXID(window->GetHost()->
+          GetAcceleratedWidget());
+
+  aura::test::EventGenerator generator(window);
+  generator.ClickLeftButton();
+  generator.DoubleClickLeftButton();
+  RunPendingMessages();
+  EXPECT_TRUE(rwh->IsMaximized());
+
+  widget->CloseNow();
+}
+
+// Tests that the window does not maximize in response to a double click event,
+// if the first click was to a different target component than that of the
+// second click.
+TEST_F(DesktopScreenX11Test, DoubleClickTwoDifferentTargetsDoesntMaximizes) {
+  Widget* widget = BuildTopLevelDesktopWidget(gfx::Rect(0, 0, 100, 100), true);
+  widget->Show();
+  TestDesktopNativeWidgetAura* native_widget =
+      static_cast<TestDesktopNativeWidgetAura*>(widget->native_widget());
+
+  aura::Window* window = widget->GetNativeWindow();
+  window->SetProperty(aura::client::kCanMaximizeKey, true);
+
+  // Cast to superclass as DesktopWindowTreeHostX11 hide IsMaximized
+  DesktopWindowTreeHost* rwh =
+      DesktopWindowTreeHostX11::GetHostForXID(window->GetHost()->
+          GetAcceleratedWidget());
+
+  aura::test::EventGenerator generator(window);
+  native_widget->set_window_component(HTCLIENT);
+  generator.ClickLeftButton();
+  native_widget->set_window_component(HTCAPTION);
+  generator.DoubleClickLeftButton();
+  RunPendingMessages();
+  EXPECT_FALSE(rwh->IsMaximized());
+
+  widget->CloseNow();
+}
+
+// Tests that the window does not maximize in response to a double click event,
+// if the double click was interrupted by a right click.
+TEST_F(DesktopScreenX11Test, RightClickDuringDoubleClickDoesntMaximize) {
+  Widget* widget = BuildTopLevelDesktopWidget(gfx::Rect(0, 0, 100, 100), true);
+  widget->Show();
+  TestDesktopNativeWidgetAura* native_widget =
+      static_cast<TestDesktopNativeWidgetAura*>(widget->native_widget());
+
+  aura::Window* window = widget->GetNativeWindow();
+  window->SetProperty(aura::client::kCanMaximizeKey, true);
+
+  // Cast to superclass as DesktopWindowTreeHostX11 hide IsMaximized
+  DesktopWindowTreeHost* rwh = static_cast<DesktopWindowTreeHost*>(
+      DesktopWindowTreeHostX11::GetHostForXID(window->GetHost()->
+          GetAcceleratedWidget()));
+
+  aura::test::EventGenerator generator(window);
+  native_widget->set_window_component(HTCLIENT);
+  generator.ClickLeftButton();
+  native_widget->set_window_component(HTCAPTION);
+  generator.PressRightButton();
+  generator.ReleaseRightButton();
+  EXPECT_FALSE(rwh->IsMaximized());
+  generator.DoubleClickLeftButton();
+  RunPendingMessages();
+  EXPECT_FALSE(rwh->IsMaximized());
+
+  widget->CloseNow();
+}
+
 }  // namespace views