chrome/browser/chromeos/accessibility/touch_exploration_controller_browsertest.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/chromeos/touch_exploration_controller.h"
   6
   7 #include "ash/accessibility_delegate.h"
   8 #include "ash/shell.h"
   9 #include "ash/test/ash_test_base.h"
  10 #include "base/test/simple_test_tick_clock.h"
  11 #include "base/time/time.h"
  12 #include "chrome/browser/ui/browser.h"
  13 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  14 #include "chrome/test/base/in_process_browser_test.h"
  15 #include "content/public/test/browser_test_utils.h"
  16 #include "ui/aura/client/cursor_client.h"
  17 #include "ui/aura/window_tree_host.h"
  18 #include "ui/compositor/compositor.h"
  19 #include "ui/compositor/test/draw_waiter_for_test.h"
  20 #include "ui/events/event.h"
  21 #include "ui/events/event_utils.h"
  22 #include "ui/events/test/event_generator.h"
  23 #include "ui/events/test/test_event_handler.h"
  24
  25 namespace ui {
  26
  27 class TouchExplorationTest : public InProcessBrowserTest {
  28  public:
  29   TouchExplorationTest() : simulated_clock_(new base::SimpleTestTickClock()) {
  30     // Tests fail if time is ever 0.
  31     simulated_clock_->Advance(base::TimeDelta::FromMilliseconds(10));
  32   }
  33   ~TouchExplorationTest() override {}
  34
  35  protected:
  36   void SetUpOnMainThread() override {
  37     // The RenderView for WebContents is created as a result of the
  38     // navigation to the New Tab page which is done as part of the test
  39     // SetUp. The creation involves sending a resize message to the renderer
  40     // process. Here we wait for the resize ack to be received, because
  41     // currently WindowEventDispatcher has code to hold touch and mouse
  42     // move events until resize is complete (crbug.com/384342) which
  43     // interferes with this test.
  44     content::WebContents* web_contents =
  45         browser()->tab_strip_model()->GetActiveWebContents();
  46     content::WaitForResizeComplete(web_contents);
  47     root_window_ = ash::Shell::GetInstance()->GetPrimaryRootWindow();
  48     event_handler_.reset(new ui::test::TestEventHandler());
  49     root_window_->AddPreTargetHandler(event_handler_.get());
  50   }
  51
  52   void TearDownOnMainThread() override {
  53     SwitchTouchExplorationMode(false);
  54     root_window_->RemovePreTargetHandler(event_handler_.get());
  55   }
  56
  57   void SwitchTouchExplorationMode(bool on) {
  58     ash::AccessibilityDelegate* ad =
  59         ash::Shell::GetInstance()->accessibility_delegate();
  60     if (on != ad->IsSpokenFeedbackEnabled())
  61       ad->ToggleSpokenFeedback(ui::A11Y_NOTIFICATION_NONE);
  62   }
  63
  64   base::TimeDelta Now() {
  65     return base::TimeDelta::FromInternalValue(
  66         simulated_clock_->NowTicks().ToInternalValue());
  67   }
  68
  69   ui::GestureDetector::Config gesture_detector_config_;
  70   base::SimpleTestTickClock* simulated_clock_;
  71   aura::Window* root_window_;
  72   scoped_ptr<ui::test::TestEventHandler> event_handler_;
  73
  74 private:
  75   DISALLOW_COPY_AND_ASSIGN(TouchExplorationTest);
  76 };
  77
  78 #if defined(OS_CHROMEOS)
  79 // crbug.com/422943
  80 #define MAYBE_NoRewritingEventsWhenOff DISABLED_NoRewritingEventsWhenOff
  81 #else
  82 #define MAYBE_NoRewritingEventsWhenOff NoRewritingEventsWhenOff
  83 #endif
  84
  85 // This test turns the touch exploration mode off and confirms that events
  86 // aren't modified.
  87 IN_PROC_BROWSER_TEST_F(TouchExplorationTest, MAYBE_NoRewritingEventsWhenOff) {
  88   SwitchTouchExplorationMode(false);
  89   ui::test::EventGenerator generator(root_window_);
  90
  91   base::TimeDelta initial_time = Now();
  92   ui::TouchEvent initial_press(
  93       ui::ET_TOUCH_PRESSED, gfx::Point(99, 200), 1, initial_time);
  94   generator.Dispatch(&initial_press);
  95
  96   // Since the touch exploration controller doesn't know if the user is
  97   // double-tapping or not, touch exploration is only initiated if the
  98   // 300 ms has elapsed and the finger does not move fast enough to begin
  99   // gestures. Here, the touch move event is not important as a move, but
 100   // a way to create time advancement.
 101   ui::TouchEvent touch_time_advance(ui::ET_TOUCH_MOVED,
 102                             gfx::Point(100, 200),
 103                             1,
 104                             initial_time +
 105                                 gesture_detector_config_.double_tap_timeout +
 106                                 base::TimeDelta::FromMilliseconds(1));
 107   generator.Dispatch(&touch_time_advance);
 108
 109   EXPECT_EQ(0, event_handler_->num_mouse_events());
 110   EXPECT_EQ(2, event_handler_->num_touch_events());
 111   event_handler_->Reset();
 112
 113   generator.MoveTouchId(gfx::Point(11, 12), 1);
 114   EXPECT_EQ(0, event_handler_->num_mouse_events());
 115   EXPECT_EQ(1, event_handler_->num_touch_events());
 116   event_handler_->Reset();
 117
 118   initial_time = Now();
 119   ui::TouchEvent second_initial_press(
 120       ui::ET_TOUCH_PRESSED, gfx::Point(499, 600), 2, initial_time);
 121   generator.Dispatch(&second_initial_press);
 122   ui::TouchEvent second_touch_time_advance(
 123       ui::ET_TOUCH_MOVED,
 124       gfx::Point(500, 600),
 125       2,
 126       initial_time + gesture_detector_config_.double_tap_timeout +
 127           base::TimeDelta::FromMilliseconds(1));
 128   generator.Dispatch(&second_touch_time_advance);
 129   EXPECT_EQ(0, event_handler_->num_mouse_events());
 130   EXPECT_EQ(2, event_handler_->num_touch_events());
 131 }
 132
 133 // This test turns the touch exploration mode on and confirms that events get
 134 // rewritten.
 135 IN_PROC_BROWSER_TEST_F(TouchExplorationTest, RewritesEventsWhenOn) {
 136   SwitchTouchExplorationMode(true);
 137   ui::test::EventGenerator generator(root_window_);
 138
 139   base::TimeDelta initial_time = Now();
 140   ui::TouchEvent initial_press(
 141       ui::ET_TOUCH_PRESSED, gfx::Point(100, 200), 1, initial_time);
 142   generator.Dispatch(&initial_press);
 143
 144   // Since the touch exploration controller doesn't know if the user is
 145   // double-tapping or not, touch exploration is only initiated if the
 146   // 300 ms has elapsed and the finger does not move fast enough to begin
 147   // gestures. Here, the touch move event is not important as a move, but
 148   // a way to create time advancement.
 149   ui::TouchEvent touch_time_advance(ui::ET_TOUCH_MOVED,
 150                             gfx::Point(100, 200),
 151                             1,
 152                             initial_time +
 153                                 gesture_detector_config_.double_tap_timeout +
 154                                 base::TimeDelta::FromMilliseconds(1));
 155   generator.Dispatch(&touch_time_advance);
 156
 157   // Number of mouse events may be greater than 1 because of ET_MOUSE_ENTERED.
 158   EXPECT_GT(event_handler_->num_mouse_events(), 0);
 159   EXPECT_EQ(0, event_handler_->num_touch_events());
 160   event_handler_->Reset();
 161
 162   initial_time = Now();
 163   ui::TouchEvent second_initial_press(
 164       ui::ET_TOUCH_PRESSED, gfx::Point(500, 600), 2, initial_time);
 165   generator.Dispatch(&second_initial_press);
 166   ui::TouchEvent second_touch_time_advance(
 167       ui::ET_TOUCH_MOVED,
 168       gfx::Point(500, 600),
 169       2,
 170       initial_time + gesture_detector_config_.double_tap_timeout +
 171           base::TimeDelta::FromMilliseconds(1));
 172   generator.Dispatch(&second_touch_time_advance);
 173   EXPECT_GT(event_handler_->num_mouse_events(), 0);
 174   EXPECT_EQ(1, event_handler_->num_touch_events());
 175   event_handler_->Reset();
 176
 177   // Stop the pending long press event. In some configurations, shutting down
 178   // the browser can take longer than the long press timeout, and a long press
 179   // event can come after the browser is already partly shut down, which causes
 180   // the test to crash.
 181   ui::TouchEvent release_second_touch(
 182       ui::ET_TOUCH_RELEASED,
 183       gfx::Point(500, 600),
 184       2,
 185       initial_time + gesture_detector_config_.double_tap_timeout +
 186           base::TimeDelta::FromMilliseconds(1));
 187   generator.Dispatch(&release_second_touch);
 188   EXPECT_GT(event_handler_->num_mouse_events(), 0);
 189   EXPECT_EQ(1, event_handler_->num_touch_events());
 190 }
 191
 192 // This test makes sure that after the user clicks with split tap,
 193 // they continue to touch exploration mode if the original touch exploration
 194 // finger is still on the screen.
 195 IN_PROC_BROWSER_TEST_F(TouchExplorationTest, SplitTapExplore) {
 196   SwitchTouchExplorationMode(true);
 197   ui::test::EventGenerator generator(root_window_);
 198   aura::client::CursorClient* cursor_client =
 199       aura::client::GetCursorClient(root_window_);
 200
 201   // Mouse events should show the cursor.
 202   generator.MoveMouseTo(gfx::Point(30, 31));
 203   EXPECT_TRUE(cursor_client->IsMouseEventsEnabled());
 204   EXPECT_TRUE(cursor_client->IsCursorVisible());
 205
 206   // The cursor should be shown immediately after the  press, and hidden
 207   // after the move.
 208   base::TimeDelta initial_time = Now();
 209   ui::TouchEvent initial_press(
 210       ui::ET_TOUCH_PRESSED, gfx::Point(100, 200), 1, initial_time);
 211   generator.Dispatch(&initial_press);
 212   EXPECT_TRUE(cursor_client->IsMouseEventsEnabled());
 213   EXPECT_TRUE(cursor_client->IsCursorVisible());
 214
 215   // Initiate touch explore by waiting for the tap timer timeout. Time is
 216   // advanced by sending a move event after the timeout period.
 217   ui::TouchEvent touch_time_advance(
 218       ui::ET_TOUCH_MOVED,
 219       gfx::Point(100, 200),
 220       1,
 221       initial_time + gesture_detector_config_.double_tap_timeout +
 222           base::TimeDelta::FromMilliseconds(1));
 223   generator.Dispatch(&touch_time_advance);
 224   EXPECT_TRUE(cursor_client->IsMouseEventsEnabled());
 225   EXPECT_FALSE(cursor_client->IsCursorVisible());
 226   event_handler_->Reset();
 227
 228   // Press and release with a second finger for split tap. This should send
 229   // touch press and release events which should send a click press and release.
 230   // Once the press is passed through, mouse events should be disabled.
 231   // Mouse events are reenabled after the release.
 232   generator.set_current_location(gfx::Point(102, 202));
 233   generator.PressTouchId(2);
 234   EXPECT_FALSE(cursor_client->IsMouseEventsEnabled());
 235   EXPECT_FALSE(cursor_client->IsCursorVisible());
 236   generator.ReleaseTouchId(2);
 237   EXPECT_TRUE(cursor_client->IsMouseEventsEnabled());
 238   EXPECT_FALSE(cursor_client->IsCursorVisible());
 239   EXPECT_EQ(2, event_handler_->num_touch_events());
 240   event_handler_->Reset();
 241
 242   // Continuing to move the touch exploration finger should send more mouse
 243   // events.
 244   generator.MoveTouchId(gfx::Point(509, 609), 1);
 245   EXPECT_EQ(0, event_handler_->num_touch_events());
 246   EXPECT_TRUE(cursor_client->IsMouseEventsEnabled());
 247   EXPECT_FALSE(cursor_client->IsCursorVisible());
 248 }
 249
 250 }  // namespace ui