src/ui/views/widget/desktop_aura/desktop_window_tree_host_x11_interactive_uitest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h"
   6
   7 #include <X11/Xlib.h>
   8
   9 // Get rid of X11 macros which conflict with gtest.
  10 #undef Bool
  11 #undef None
  12
  13 #include "base/memory/scoped_ptr.h"
  14 #include "base/path_service.h"
  15 #include "ui/aura/env.h"
  16 #include "ui/aura/window.h"
  17 #include "ui/aura/window_tree_host.h"
  18 #include "ui/base/resource/resource_bundle.h"
  19 #include "ui/base/ui_base_paths.h"
  20 #include "ui/base/x/x11_util.h"
  21 #include "ui/events/event_handler.h"
  22 #include "ui/events/platform/x11/x11_event_source.h"
  23 #include "ui/gfx/rect.h"
  24 #include "ui/gfx/x/x11_atom_cache.h"
  25 #include "ui/gl/gl_surface.h"
  26 #include "ui/views/test/views_test_base.h"
  27 #include "ui/views/test/x11_property_change_waiter.h"
  28 #include "ui/views/widget/desktop_aura/desktop_native_widget_aura.h"
  29
  30 namespace views {
  31
  32 namespace {
  33
  34 // Blocks till |window| gets activated.
  35 class ActivationWaiter : public X11PropertyChangeWaiter {
  36  public:
  37   explicit ActivationWaiter(XID window)
  38       : X11PropertyChangeWaiter(ui::GetX11RootWindow(), "_NET_ACTIVE_WINDOW"),
  39         window_(window) {
  40   }
  41
  42   ~ActivationWaiter() override {}
  43
  44  private:
  45   // X11PropertyChangeWaiter:
  46   bool ShouldKeepOnWaiting(const ui::PlatformEvent& event) override {
  47     XID xid = 0;
  48     ui::GetXIDProperty(ui::GetX11RootWindow(), "_NET_ACTIVE_WINDOW", &xid);
  49     return xid != window_;
  50   }
  51
  52   XID window_;
  53
  54   DISALLOW_COPY_AND_ASSIGN(ActivationWaiter);
  55 };
  56
  57 // An event handler which counts the number of mouse moves it has seen.
  58 class MouseMoveCounterHandler : public ui::EventHandler {
  59  public:
  60   MouseMoveCounterHandler() : count_(0) {
  61   }
  62   ~MouseMoveCounterHandler() override {}
  63
  64   // ui::EventHandler:
  65   void OnMouseEvent(ui::MouseEvent* event) override {
  66     if (event->type() == ui::ET_MOUSE_MOVED)
  67       ++count_;
  68   }
  69
  70   int num_mouse_moves() const {
  71     return count_;
  72   }
  73
  74  private:
  75   int count_;
  76
  77   DISALLOW_COPY_AND_ASSIGN(MouseMoveCounterHandler);
  78 };
  79
  80 // Creates a widget with the given bounds.
  81 scoped_ptr<Widget> CreateWidget(const gfx::Rect& bounds) {
  82   scoped_ptr<Widget> widget(new Widget);
  83   Widget::InitParams params(Widget::InitParams::TYPE_WINDOW);
  84   params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
  85   params.remove_standard_frame = true;
  86   params.native_widget = new DesktopNativeWidgetAura(widget.get());
  87   params.bounds = bounds;
  88   widget->Init(params);
  89   return widget.Pass();
  90 }
  91
  92 // Dispatches an XMotionEvent targeted at |host|'s X window with location
  93 // |point_in_screen|.
  94 void DispatchMouseMotionEvent(DesktopWindowTreeHostX11* desktop_host,
  95                               const gfx::Point& point_in_screen) {
  96   aura::WindowTreeHost* host = static_cast<aura::WindowTreeHost*>(desktop_host);
  97   gfx::Rect bounds_in_screen = desktop_host->window()->GetBoundsInScreen();
  98
  99   Display* display = gfx::GetXDisplay();
 100   XEvent xev;
 101   xev.xmotion.type = MotionNotify;
 102   xev.xmotion.display = display;
 103   xev.xmotion.window = host->GetAcceleratedWidget();
 104   xev.xmotion.root = DefaultRootWindow(display);
 105   xev.xmotion.subwindow = 0;
 106   xev.xmotion.time = CurrentTime;
 107   xev.xmotion.x = point_in_screen.x() - bounds_in_screen.x();
 108   xev.xmotion.y = point_in_screen.y() - bounds_in_screen.y();
 109   xev.xmotion.x_root = point_in_screen.x();
 110   xev.xmotion.y_root = point_in_screen.y();
 111   xev.xmotion.state = 0;
 112   xev.xmotion.is_hint = NotifyNormal;
 113   xev.xmotion.same_screen = True;
 114
 115   static_cast<ui::PlatformEventDispatcher*>(desktop_host)->DispatchEvent(&xev);
 116 }
 117
 118 }  // namespace
 119
 120 class DesktopWindowTreeHostX11Test : public ViewsTestBase {
 121  public:
 122   DesktopWindowTreeHostX11Test() {
 123   }
 124   ~DesktopWindowTreeHostX11Test() override {}
 125
 126   static void SetUpTestCase() {
 127     gfx::GLSurface::InitializeOneOffForTests();
 128     ui::RegisterPathProvider();
 129     base::FilePath ui_test_pak_path;
 130     ASSERT_TRUE(PathService::Get(ui::UI_TEST_PAK, &ui_test_pak_path));
 131     ui::ResourceBundle::InitSharedInstanceWithPakPath(ui_test_pak_path);
 132   }
 133
 134   // testing::Test
 135   void SetUp() override {
 136     ViewsTestBase::SetUp();
 137
 138     // Make X11 synchronous for our display connection. This does not force the
 139     // window manager to behave synchronously.
 140     XSynchronize(gfx::GetXDisplay(), True);
 141   }
 142
 143   void TearDown() override {
 144     XSynchronize(gfx::GetXDisplay(), False);
 145     ViewsTestBase::TearDown();
 146   }
 147
 148  private:
 149   DISALLOW_COPY_AND_ASSIGN(DesktopWindowTreeHostX11Test);
 150 };
 151
 152 // Test that calling Widget::Deactivate() sets the widget as inactive wrt to
 153 // Chrome even if it not possible to deactivate the window wrt to the x server.
 154 // This behavior is required by several interactive_ui_tests.
 155 TEST_F(DesktopWindowTreeHostX11Test, Deactivate) {
 156   scoped_ptr<Widget> widget(CreateWidget(gfx::Rect(100, 100, 100, 100)));
 157
 158   ActivationWaiter waiter(
 159       widget->GetNativeWindow()->GetHost()->GetAcceleratedWidget());
 160   widget->Show();
 161   widget->Activate();
 162   waiter.Wait();
 163
 164   widget->Deactivate();
 165   // Regardless of whether |widget|'s X11 window eventually gets deactivated,
 166   // |widget|'s "active" state should change.
 167   EXPECT_FALSE(widget->IsActive());
 168
 169   // |widget|'s X11 window should still be active. Reactivating |widget| should
 170   // update the widget's "active" state.
 171   // Note: Activating a widget whose X11 window is not active does not
 172   // synchronously update the widget's "active" state.
 173   widget->Activate();
 174   EXPECT_TRUE(widget->IsActive());
 175 }
 176
 177 // Chrome attempts to make mouse capture look synchronous on Linux. Test that
 178 // Chrome synchronously switches the window that mouse events are forwarded to
 179 // when capture is changed.
 180 TEST_F(DesktopWindowTreeHostX11Test, CaptureEventForwarding) {
 181   scoped_ptr<Widget> widget1(CreateWidget(gfx::Rect(100, 100, 100, 100)));
 182   aura::Window* window1 = widget1->GetNativeWindow();
 183   DesktopWindowTreeHostX11* host1 =
 184       static_cast<DesktopWindowTreeHostX11*>(window1->GetHost());
 185   widget1->Show();
 186
 187   scoped_ptr<Widget> widget2(CreateWidget(gfx::Rect(200, 100, 100, 100)));
 188   aura::Window* window2 = widget2->GetNativeWindow();
 189   DesktopWindowTreeHostX11* host2 =
 190       static_cast<DesktopWindowTreeHostX11*>(window2->GetHost());
 191   widget2->Show();
 192
 193   MouseMoveCounterHandler recorder1;
 194   window1->AddPreTargetHandler(&recorder1);
 195   MouseMoveCounterHandler recorder2;
 196   window2->AddPreTargetHandler(&recorder2);
 197
 198   // Move the mouse to the center of |widget2|.
 199   gfx::Point point_in_screen = widget2->GetWindowBoundsInScreen().CenterPoint();
 200   DispatchMouseMotionEvent(host2, point_in_screen);
 201   EXPECT_EQ(0, recorder1.num_mouse_moves());
 202   EXPECT_EQ(1, recorder2.num_mouse_moves());
 203   EXPECT_EQ(point_in_screen.ToString(),
 204             aura::Env::GetInstance()->last_mouse_location().ToString());
 205
 206   // Set capture to |widget1|. Because DesktopWindowTreeHostX11 calls
 207   // XGrabPointer() with owner == False, the X server sends events to |widget2|
 208   // as long as the mouse is hovered over |widget2|. Verify that Chrome
 209   // redirects mouse events to |widget1|.
 210   widget1->SetCapture(NULL);
 211   point_in_screen += gfx::Vector2d(1, 0);
 212   DispatchMouseMotionEvent(host2, point_in_screen);
 213   EXPECT_EQ(1, recorder1.num_mouse_moves());
 214   EXPECT_EQ(1, recorder2.num_mouse_moves());
 215   // If the event's location was correctly changed to be relative to |widget1|,
 216   // Env's last mouse position will be correct.
 217   EXPECT_EQ(point_in_screen.ToString(),
 218             aura::Env::GetInstance()->last_mouse_location().ToString());
 219
 220   // Set capture to |widget2|. Subsequent events sent to |widget2| should not be
 221   // forwarded.
 222   widget2->SetCapture(NULL);
 223   point_in_screen += gfx::Vector2d(1, 0);
 224   DispatchMouseMotionEvent(host2, point_in_screen);
 225   EXPECT_EQ(1, recorder1.num_mouse_moves());
 226   EXPECT_EQ(2, recorder2.num_mouse_moves());
 227   EXPECT_EQ(point_in_screen.ToString(),
 228             aura::Env::GetInstance()->last_mouse_location().ToString());
 229
 230   // If the mouse is not hovered over |widget1| or |widget2|, the X server will
 231   // send events to the window which has capture. Test the mouse events sent to
 232   // |widget2| are not forwarded.
 233   DispatchMouseMotionEvent(host2, point_in_screen);
 234   EXPECT_EQ(1, recorder1.num_mouse_moves());
 235   EXPECT_EQ(3, recorder2.num_mouse_moves());
 236   EXPECT_EQ(point_in_screen.ToString(),
 237             aura::Env::GetInstance()->last_mouse_location().ToString());
 238
 239   // Release capture. Test that when capture is released, mouse events are no
 240   // longer forwarded to other widgets.
 241   widget2->ReleaseCapture();
 242   point_in_screen = widget1->GetWindowBoundsInScreen().CenterPoint();
 243   DispatchMouseMotionEvent(host1, point_in_screen);
 244   EXPECT_EQ(2, recorder1.num_mouse_moves());
 245   EXPECT_EQ(3, recorder2.num_mouse_moves());
 246   EXPECT_EQ(point_in_screen.ToString(),
 247             aura::Env::GetInstance()->last_mouse_location().ToString());
 248
 249   // Cleanup
 250   window1->RemovePreTargetHandler(&recorder1);
 251   window2->RemovePreTargetHandler(&recorder2);
 252 }
 253
 254 }  // namespace views