Corner Passthrough for Accessibility

ui/chromeos/touch_exploration_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 "ui/chromeos/touch_exploration_controller.h"
 
 #include "base/test/simple_test_tick_clock.h"
 #include "base/time/time.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/test/aura_test_base.h"
@@ skipping 1616 matching lines @@
   EXPECT_FALSE(IsInGestureInProgressState());
   EXPECT_FALSE(IsInSlideGestureState());
   EXPECT_FALSE(IsInTouchToMouseMode());
 
   AdvanceSimulatedTimePastTapDelay();
   EXPECT_FALSE(IsInGestureInProgressState());
   EXPECT_FALSE(IsInSlideGestureState());
   EXPECT_TRUE(IsInTouchToMouseMode());
 }
 
+// Corner passthrough should turn on if the user first holds down on either the
+// right or left corner past a delay and then places a finger anywhere else on
+// the screen.
+TEST_F(TouchExplorationTest, ActivateLeftCornerPassthrough) {
+  SwitchTouchExplorationMode(true);
+
+  gfx::Rect window = BoundsOfRootWindowInDIP();
+  gfx::Point left_corner_press(10,

[aboxhall, 2014/07/24 18:34:16]

nit: left_corner rather than left_corner_press.

[lisayin, 2014/07/25 20:11:57]

Done.

+                               window.bottom() - GetMaxDistanceFromEdge() / 2);
+  ui::TouchEvent first_press(

[aboxhall, 2014/07/24 18:34:16]

Everything below this line is common to this and the below test, right? Perhaps
extract it out into a helper method, e.g. "assertCornerPassthroughWorking"? 

[lisayin, 2014/07/25 20:11:57]

Done.

+      ui::ET_TOUCH_PRESSED,
+      left_corner_press,
+      0,
+      Now());
+  generator_->Dispatch(&first_press);
+  EXPECT_FALSE(IsInGestureInProgressState());
+  EXPECT_FALSE(IsInSlideGestureState());
+  EXPECT_FALSE(IsInTouchToMouseMode());

[aboxhall, 2014/07/24 18:34:16]

Explicitly test for CORNER_PASSTHROUGH mode here?

[lisayin, 2014/07/25 20:11:57]

Done.

+
+  AdvanceSimulatedTimePastTapDelay();

[aboxhall, 2014/07/24 18:34:16]

Should this be the corner passthrough delay instead?

[lisayin, 2014/07/25 20:11:57]

Done.

+  EXPECT_FALSE(IsInGestureInProgressState());
+  EXPECT_FALSE(IsInSlideGestureState());
+  EXPECT_FALSE(IsInTouchToMouseMode());
+
+  // The following events should be passed through.
+  gfx::Point middle_screen(window.right() / 2, window.bottom() / 2);
+  ui::TouchEvent middle_press(
+      ui::ET_TOUCH_PRESSED, middle_screen, 1, Now());
+  generator_->Dispatch(&middle_press);
+  generator_->ReleaseTouchId(1);
+  generator_->PressTouchId(1);
+  EXPECT_FALSE(IsInGestureInProgressState());
+  EXPECT_FALSE(IsInSlideGestureState());
+  EXPECT_FALSE(IsInTouchToMouseMode());
+
+  std::vector<ui::LocatedEvent*> captured_events = GetCapturedLocatedEvents();
+  ASSERT_EQ(3U, captured_events.size());
+  EXPECT_EQ(ui::ET_TOUCH_PRESSED, captured_events[0]->type());
+  EXPECT_EQ(ui::ET_TOUCH_RELEASED, captured_events[1]->type());
+  EXPECT_EQ(ui::ET_TOUCH_PRESSED, captured_events[2]->type());
+  generator_->ReleaseTouchId(1);
+  ClearCapturedEvents();
+
+  generator_->ReleaseTouchId(0);
+  captured_events = GetCapturedLocatedEvents();
+  ASSERT_EQ(0U, captured_events.size());
+  EXPECT_FALSE(IsInGestureInProgressState());
+  EXPECT_FALSE(IsInSlideGestureState());
+  EXPECT_FALSE(IsInTouchToMouseMode());
+}
+
+TEST_F(TouchExplorationTest, ActivateRightCornerPassthrough) {
+  SwitchTouchExplorationMode(true);
+
+  gfx::Rect window = BoundsOfRootWindowInDIP();
+  gfx::Point right_corner_press(window.right() - GetMaxDistanceFromEdge() / 2,
+                                window.bottom() - GetMaxDistanceFromEdge() / 2);
+  ui::TouchEvent first_press(
+      ui::ET_TOUCH_PRESSED, right_corner_press, 0, Now());
+  generator_->Dispatch(&first_press);
+  EXPECT_FALSE(IsInGestureInProgressState());
+  EXPECT_FALSE(IsInSlideGestureState());
+  EXPECT_FALSE(IsInTouchToMouseMode());
+
+  AdvanceSimulatedTimePastTapDelay();
+  EXPECT_FALSE(IsInGestureInProgressState());
+  EXPECT_FALSE(IsInSlideGestureState());
+  EXPECT_FALSE(IsInTouchToMouseMode());
+
+  // The following events should be passed through.
+  gfx::Point middle_screen(window.right() / 2, window.bottom() / 2);
+  ui::TouchEvent middle_press(
+      ui::ET_TOUCH_PRESSED, middle_screen, 1, Now());
+  generator_->Dispatch(&middle_press);
+  generator_->ReleaseTouchId(1);
+  generator_->PressTouchId(1);
+  EXPECT_FALSE(IsInGestureInProgressState());
+  EXPECT_FALSE(IsInSlideGestureState());
+  EXPECT_FALSE(IsInTouchToMouseMode());
+
+  std::vector<ui::LocatedEvent*> captured_events = GetCapturedLocatedEvents();
+  ASSERT_EQ(3U, captured_events.size());
+  EXPECT_EQ(ui::ET_TOUCH_PRESSED, captured_events[0]->type());
+  EXPECT_EQ(ui::ET_TOUCH_RELEASED, captured_events[1]->type());
+  EXPECT_EQ(ui::ET_TOUCH_PRESSED, captured_events[2]->type());
+  generator_->ReleaseTouchId(1);
+  ClearCapturedEvents();
+
+  generator_->ReleaseTouchId(0);
+  captured_events = GetCapturedLocatedEvents();
+  ASSERT_EQ(0U, captured_events.size());
+  EXPECT_FALSE(IsInGestureInProgressState());
+  EXPECT_FALSE(IsInSlideGestureState());
+  EXPECT_FALSE(IsInTouchToMouseMode());
+}
+
 }  // namespace ui