Retry c7e292ea58a76fe2 - Redirect all mouse input to Alt+Tab window

ash/wm/window_cycle_controller_unittest.cc

 // Copyright 2014 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/common/wm/window_cycle_controller.h"
 
 #include <algorithm>
 #include <memory>
 
 #include "ash/aura/wm_window_aura.h"
@@ skipping 22 matching lines @@
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/events/event_handler.h"
 #include "ui/events/test/event_generator.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace ash {
 
 namespace {
 
-class KeyEventCounter : public ui::EventHandler {
+class EventCounter : public ui::EventHandler {
  public:
-  KeyEventCounter() : key_events_(0) {}
-  ~KeyEventCounter() override {}
+  EventCounter() : key_events_(0), mouse_events_(0) {}
+  ~EventCounter() override {}
 
-  size_t GetCountAndReset() {
-    size_t count = key_events_;
+  int GetKeyEventCountAndReset() {
+    int count = key_events_;
     key_events_ = 0;
     return count;
   }
 
+  int GetMouseEventCountAndReset() {
+    int count = mouse_events_;
+    mouse_events_ = 0;
+    return count;
+  }
+
   // ui::EventHandler:
   void OnKeyEvent(ui::KeyEvent* event) override { key_events_++; }
+  void OnMouseEvent(ui::MouseEvent* event) override { mouse_events_++; }
 
  private:
-  size_t key_events_;
+  int key_events_;
+  int mouse_events_;
 
-  DISALLOW_COPY_AND_ASSIGN(KeyEventCounter);
+  DISALLOW_COPY_AND_ASSIGN(EventCounter);
 };
 
 bool IsWindowMinimized(aura::Window* window) {
   return WmWindowAura::Get(window)->GetWindowState()->IsMinimized();
 }
 
 }  // namespace
 
 using aura::test::CreateTestWindowWithId;
 using aura::test::TestWindowDelegate;
@@ skipping 480 matching lines @@
   // Cycling again should now select panel1.
   controller->HandleCycleWindow(WindowCycleController::FORWARD);
   controller->StopCycling();
   EXPECT_TRUE(wm::IsActiveWindow(panel1.get()));
 }
 
 // Tests that the tab key events are not sent to the window.
 TEST_F(WindowCycleControllerTest, TabKeyNotLeaked) {
   std::unique_ptr<Window> w0(CreateTestWindowInShellWithId(0));
   std::unique_ptr<Window> w1(CreateTestWindowInShellWithId(1));
-  KeyEventCounter key_count;
-  w0->AddPreTargetHandler(&key_count);
-  w1->AddPreTargetHandler(&key_count);
+  EventCounter event_count;
+  w0->AddPreTargetHandler(&event_count);
+  w1->AddPreTargetHandler(&event_count);
   ui::test::EventGenerator& generator = GetEventGenerator();
   wm::GetWindowState(w0.get())->Activate();
   generator.PressKey(ui::VKEY_MENU, ui::EF_NONE);
-  EXPECT_EQ(1u, key_count.GetCountAndReset());
+  EXPECT_EQ(1, event_count.GetKeyEventCountAndReset());
   generator.PressKey(ui::VKEY_TAB, ui::EF_ALT_DOWN);
-  EXPECT_EQ(0u, key_count.GetCountAndReset());
+  EXPECT_EQ(0, event_count.GetKeyEventCountAndReset());
   generator.ReleaseKey(ui::VKEY_TAB, ui::EF_ALT_DOWN);
-  EXPECT_EQ(0u, key_count.GetCountAndReset());
+  EXPECT_EQ(0, event_count.GetKeyEventCountAndReset());
   generator.ReleaseKey(ui::VKEY_MENU, ui::EF_NONE);
   EXPECT_TRUE(wm::GetWindowState(w1.get())->IsActive());
-  EXPECT_EQ(0u, key_count.GetCountAndReset());
+  EXPECT_EQ(0, event_count.GetKeyEventCountAndReset());
+}
+
+// While the UI is active, mouse events are captured.
+TEST_F(WindowCycleControllerTest, MouseEventsCaptured) {
+  // This delegate allows the window to receive mouse events.
+  aura::test::TestWindowDelegate delegate;
+  std::unique_ptr<Window> w0(CreateTestWindowInShellWithDelegate(
+      &delegate, 0, gfx::Rect(0, 0, 100, 100)));
+  std::unique_ptr<Window> w1(CreateTestWindowInShellWithId(1));
+  EventCounter event_count;
+  w0->AddPreTargetHandler(&event_count);
+  w1->SetTargetHandler(&event_count);
+  ui::test::EventGenerator& generator = GetEventGenerator();
+  wm::ActivateWindow(w0.get());
+
+  // Events get through.
+  generator.MoveMouseToCenterOf(w0.get());
+  generator.ClickLeftButton();
+  EXPECT_LT(0, event_count.GetMouseEventCountAndReset());
+
+  // Start cycling.
+  WindowCycleController* controller = WmShell::Get()->window_cycle_controller();
+  controller->HandleCycleWindow(WindowCycleController::FORWARD);
+
+  // Events don't get through.
+  generator.ClickLeftButton();
+  EXPECT_EQ(0, event_count.GetMouseEventCountAndReset());
+
+  // Stop cycling: once again, events get through.
+  controller->StopCycling();
+  generator.ClickLeftButton();
+  EXPECT_LT(0, event_count.GetMouseEventCountAndReset());
+}
+
+// If mouse capture is lost, the UI closes.
+TEST_F(WindowCycleControllerTest, MouseCaptureLost) {
+  // This delegate allows the window to receive mouse events.
+  aura::test::TestWindowDelegate delegate;
+  std::unique_ptr<Window> w0(CreateTestWindowInShellWithDelegate(
+      &delegate, 0, gfx::Rect(0, 0, 100, 100)));
+  std::unique_ptr<Window> w1(CreateTestWindowInShellWithId(1));
+
+  // Start cycling.
+  WindowCycleController* controller = WmShell::Get()->window_cycle_controller();
+  controller->HandleCycleWindow(WindowCycleController::FORWARD);
+
+  // Some other widget grabs capture and this causes Alt+Tab to cease.
+  std::unique_ptr<views::Widget> widget = CreateTestWidget(
+      nullptr, kShellWindowId_DefaultContainer, gfx::Rect(1, 2, 3, 4));
+  widget->SetCapture(nullptr);
+  EXPECT_FALSE(controller->IsCycling());
 }
 
 // Tests that we can cycle past fullscreen windows: https://crbug.com/622396.
 // Fullscreen windows are special in that they are allowed to handle alt+tab
 // keypresses, which means the window cycle event filter should not handle
 // the tab press else it prevents cycling past that window.
 TEST_F(WindowCycleControllerTest, TabPastFullscreenWindow) {
   std::unique_ptr<Window> w0(CreateTestWindowInShellWithId(0));
   std::unique_ptr<Window> w1(CreateTestWindowInShellWithId(1));
   wm::WMEvent maximize_event(wm::WM_EVENT_FULLSCREEN);
@@ skipping 12 matching lines @@
   generator.PressKey(ui::VKEY_MENU, ui::EF_NONE);
 
   generator.PressKey(ui::VKEY_TAB, ui::EF_ALT_DOWN);
   generator.ReleaseKey(ui::VKEY_TAB, ui::EF_ALT_DOWN);
 
   // Because w0 and w1 are full-screen, the event should be passed to the
   // browser window to handle it (which if the browser doesn't handle it will
   // pass on the alt+tab to continue cycling). To make this test work with or
   // without the new alt+tab selector we check for the event on either
   // fullscreen window.
-  KeyEventCounter key_count;
-  w0->AddPreTargetHandler(&key_count);
-  w1->AddPreTargetHandler(&key_count);
+  EventCounter event_count;
+  w0->AddPreTargetHandler(&event_count);
+  w1->AddPreTargetHandler(&event_count);
   generator.PressKey(ui::VKEY_TAB, ui::EF_ALT_DOWN);
-  EXPECT_EQ(1u, key_count.GetCountAndReset());
+  EXPECT_EQ(1, event_count.GetKeyEventCountAndReset());
 }
 
 }  // namespace ash