ui/views/touchui/touch_selection_controller_impl_unittest.cc

   1 // Copyright (c) 2012 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 "base/command_line.h"
   6 #include "base/strings/utf_string_conversions.h"
   7 #include "ui/aura/client/screen_position_client.h"
   8 #include "ui/aura/test/test_cursor_client.h"
   9 #include "ui/aura/window.h"
  10 #include "ui/base/resource/resource_bundle.h"
  11 #include "ui/base/touch/touch_editing_controller.h"
  12 #include "ui/base/ui_base_switches.h"
  13 #include "ui/events/test/event_generator.h"
  14 #include "ui/gfx/canvas.h"
  15 #include "ui/gfx/geometry/point.h"
  16 #include "ui/gfx/geometry/rect.h"
  17 #include "ui/gfx/render_text.h"
  18 #include "ui/resources/grit/ui_resources.h"
  19 #include "ui/views/controls/textfield/textfield.h"
  20 #include "ui/views/controls/textfield/textfield_test_api.h"
  21 #include "ui/views/test/views_test_base.h"
  22 #include "ui/views/touchui/touch_selection_controller_impl.h"
  23 #include "ui/views/views_touch_selection_controller_factory.h"
  24 #include "ui/views/widget/widget.h"
  25
  26 using base::ASCIIToUTF16;
  27 using base::UTF16ToUTF8;
  28 using base::WideToUTF16;
  29
  30 namespace {
  31 // Should match kSelectionHandleBarMinHeight in touch_selection_controller.
  32 const int kBarMinHeight = 5;
  33
  34 // Should match kSelectionHandleBarBottomAllowance in
  35 // touch_selection_controller.
  36 const int kBarBottomAllowance = 3;
  37
  38 // Should match kMenuButtonWidth in touch_editing_menu.
  39 const int kMenuButtonWidth = 63;
  40
  41 // Should match size of kMenuCommands array in touch_editing_menu.
  42 const int kMenuCommandCount = 3;
  43
  44 // For selection bounds |b1| and |b2| in a paragraph of text, returns -1 if |b1|
  45 // is physically before |b2|, +1 if |b2| is before |b1|, and 0 if they are at
  46 // the same location.
  47 int CompareTextSelectionBounds(const ui::SelectionBound& b1,
  48                                const ui::SelectionBound& b2) {
  49   if (b1.edge_top().y() < b2.edge_top().y() ||
  50       b1.edge_top().x() < b2.edge_top().x()) {
  51     return -1;
  52   }
  53   if (b1 == b2)
  54     return 0;
  55   return 1;
  56 }
  57
  58 }  // namespace
  59
  60 namespace views {
  61
  62 class TouchSelectionControllerImplTest : public ViewsTestBase {
  63  public:
  64   TouchSelectionControllerImplTest()
  65       : textfield_widget_(nullptr),
  66         widget_(nullptr),
  67         textfield_(nullptr),
  68         views_tsc_factory_(new ViewsTouchEditingControllerFactory) {
  69     base::CommandLine::ForCurrentProcess()->AppendSwitch(
  70         switches::kEnableTouchEditing);
  71     ui::TouchEditingControllerFactory::SetInstance(views_tsc_factory_.get());
  72   }
  73
  74   ~TouchSelectionControllerImplTest() override {
  75     ui::TouchEditingControllerFactory::SetInstance(nullptr);
  76   }
  77
  78   void SetUp() override {
  79     ViewsTestBase::SetUp();
  80     test_cursor_client_.reset(new aura::test::TestCursorClient(GetContext()));
  81   }
  82
  83   void TearDown() override {
  84     test_cursor_client_.reset();
  85     if (textfield_widget_ && !textfield_widget_->IsClosed())
  86       textfield_widget_->Close();
  87     if (widget_ && !widget_->IsClosed())
  88       widget_->Close();
  89     ViewsTestBase::TearDown();
  90   }
  91
  92   void CreateTextfield() {
  93     textfield_ = new Textfield();
  94     textfield_widget_ = new Widget;
  95     Widget::InitParams params = CreateParams(Widget::InitParams::TYPE_POPUP);
  96     params.bounds = gfx::Rect(0, 0, 200, 200);
  97     textfield_widget_->Init(params);
  98     View* container = new View();
  99     textfield_widget_->SetContentsView(container);
 100     container->AddChildView(textfield_);
 101
 102     textfield_->SetBoundsRect(gfx::Rect(0, 0, 200, 20));
 103     textfield_->set_id(1);
 104     textfield_widget_->Show();
 105
 106     textfield_->RequestFocus();
 107     textfield_test_api_.reset(new TextfieldTestApi(textfield_));
 108   }
 109
 110   void CreateWidget() {
 111     widget_ = new Widget;
 112     Widget::InitParams params = CreateParams(Widget::InitParams::TYPE_POPUP);
 113     params.bounds = gfx::Rect(0, 0, 200, 200);
 114     widget_->Init(params);
 115     widget_->Show();
 116 }
 117
 118  protected:
 119   static bool IsCursorHandleVisibleFor(
 120       ui::TouchEditingControllerDeprecated* controller) {
 121     TouchSelectionControllerImpl* impl =
 122         static_cast<TouchSelectionControllerImpl*>(controller);
 123     return impl->IsCursorHandleVisible();
 124   }
 125
 126   gfx::Rect GetCursorRect(const gfx::SelectionModel& sel) {
 127     return textfield_test_api_->GetRenderText()->GetCursorBounds(sel, true);
 128   }
 129
 130   gfx::Point GetCursorPosition(const gfx::SelectionModel& sel) {
 131     gfx::Rect cursor_bounds = GetCursorRect(sel);
 132     return gfx::Point(cursor_bounds.x(), cursor_bounds.y());
 133   }
 134
 135   TouchSelectionControllerImpl* GetSelectionController() {
 136     return static_cast<TouchSelectionControllerImpl*>(
 137         textfield_test_api_->touch_selection_controller());
 138   }
 139
 140   void StartTouchEditing() {
 141     textfield_test_api_->CreateTouchSelectionControllerAndNotifyIt();
 142   }
 143
 144   void EndTouchEditing() {
 145     textfield_test_api_->ResetTouchSelectionController();
 146   }
 147
 148   void SimulateSelectionHandleDrag(gfx::Vector2d v, int selection_handle) {
 149     TouchSelectionControllerImpl* controller = GetSelectionController();
 150     views::WidgetDelegateView* handle = nullptr;
 151     if (selection_handle == 1)
 152       handle = controller->GetHandle1View();
 153     else
 154       handle = controller->GetHandle2View();
 155
 156     gfx::Point grip_location = gfx::Point(handle->size().width() / 2,
 157                                           handle->size().height() / 2);
 158     base::TimeDelta time_stamp = base::TimeDelta();
 159     {
 160       ui::GestureEventDetails details(ui::ET_GESTURE_SCROLL_BEGIN);
 161       ui::GestureEvent scroll_begin(
 162           grip_location.x(), grip_location.y(), 0, time_stamp, details);
 163       handle->OnGestureEvent(&scroll_begin);
 164     }
 165     test_cursor_client_->DisableMouseEvents();
 166     {
 167       ui::GestureEventDetails details(ui::ET_GESTURE_SCROLL_UPDATE);
 168       gfx::Point update_location = grip_location + v;
 169       ui::GestureEvent scroll_update(
 170           update_location.x(), update_location.y(), 0, time_stamp, details);
 171       handle->OnGestureEvent(&scroll_update);
 172     }
 173     {
 174       ui::GestureEventDetails details(ui::ET_GESTURE_SCROLL_END);
 175       ui::GestureEvent scroll_end(
 176           grip_location.x(), grip_location.y(), 0, time_stamp, details);
 177       handle->OnGestureEvent(&scroll_end);
 178     }
 179     test_cursor_client_->EnableMouseEvents();
 180   }
 181
 182   gfx::NativeView GetCursorHandleNativeView() {
 183     return GetSelectionController()->GetCursorHandleNativeView();
 184   }
 185
 186   gfx::Rect GetSelectionHandle1Bounds() {
 187     return GetSelectionController()->GetSelectionHandle1Bounds();
 188   }
 189
 190   gfx::Rect GetSelectionHandle2Bounds() {
 191     return GetSelectionController()->GetSelectionHandle2Bounds();
 192   }
 193
 194   gfx::Rect GetCursorHandleBounds() {
 195     return GetSelectionController()->GetCursorHandleBounds();
 196   }
 197
 198   gfx::Rect GetExpectedHandleBounds(const ui::SelectionBound& bound) {
 199     return GetSelectionController()->GetExpectedHandleBounds(bound);
 200   }
 201
 202   bool IsSelectionHandle1Visible() {
 203     return GetSelectionController()->IsSelectionHandle1Visible();
 204   }
 205
 206   bool IsSelectionHandle2Visible() {
 207     return GetSelectionController()->IsSelectionHandle2Visible();
 208   }
 209
 210   bool IsCursorHandleVisible() {
 211     return GetSelectionController()->IsCursorHandleVisible();
 212   }
 213
 214   gfx::RenderText* GetRenderText() {
 215     return textfield_test_api_->GetRenderText();
 216   }
 217
 218   gfx::Point GetCursorHandleDragPoint() {
 219     gfx::Rect rect = GetCursorHandleBounds();
 220     const gfx::SelectionModel& sel = textfield_->GetSelectionModel();
 221     int cursor_height = GetCursorRect(sel).height();
 222     gfx::Point point = rect.CenterPoint();
 223     point.Offset(0, cursor_height);
 224     return point;
 225   }
 226
 227   // If textfield has selection, this verifies that the selection handles
 228   // are visible, at the correct positions (at the end points of selection), and
 229   // (if |check_direction| is set to true), that they have the correct
 230   // directionality.
 231   // |cursor_at_selection_handle_1| is used to decide whether selection
 232   // handle 1's position is matched against the start of selection or the end.
 233   void VerifyHandlePositions(bool cursor_at_selection_handle_1,
 234                              bool check_direction,
 235                              const tracked_objects::Location& from_here) {
 236     ui::SelectionBound anchor, focus;
 237     textfield_->GetSelectionEndPoints(&anchor, &focus);
 238     std::string from_str = from_here.ToString();
 239     if (textfield_->HasSelection()) {
 240       EXPECT_TRUE(IsSelectionHandle1Visible()) << from_str;
 241       EXPECT_TRUE(IsSelectionHandle2Visible()) << from_str;
 242       EXPECT_FALSE(IsCursorHandleVisible());
 243       gfx::Rect sh1_bounds = GetSelectionHandle1Bounds();
 244       gfx::Rect sh2_bounds = GetSelectionHandle2Bounds();
 245       if (cursor_at_selection_handle_1) {
 246         EXPECT_EQ(sh1_bounds, GetExpectedHandleBounds(focus)) << from_str;
 247         EXPECT_EQ(sh2_bounds, GetExpectedHandleBounds(anchor)) << from_str;
 248       } else {
 249         EXPECT_EQ(sh1_bounds, GetExpectedHandleBounds(anchor)) << from_str;
 250         EXPECT_EQ(sh2_bounds, GetExpectedHandleBounds(focus)) << from_str;
 251       }
 252     } else {
 253       EXPECT_FALSE(IsSelectionHandle1Visible()) << from_str;
 254       EXPECT_FALSE(IsSelectionHandle2Visible()) << from_str;
 255       EXPECT_TRUE(IsCursorHandleVisible());
 256       gfx::Rect cursor_bounds = GetCursorHandleBounds();
 257       DCHECK(anchor == focus);
 258       EXPECT_EQ(cursor_bounds, GetExpectedHandleBounds(anchor)) << from_str;
 259     }
 260     if (check_direction)  {
 261       if (CompareTextSelectionBounds(anchor, focus) < 0) {
 262         EXPECT_EQ(ui::SelectionBound::LEFT, anchor.type()) << from_str;
 263         EXPECT_EQ(ui::SelectionBound::RIGHT, focus.type())  << from_str;
 264       } else if (CompareTextSelectionBounds(anchor, focus) > 0) {
 265         EXPECT_EQ(ui::SelectionBound::LEFT, focus.type())  << from_str;
 266         EXPECT_EQ(ui::SelectionBound::RIGHT, anchor.type())  << from_str;
 267       } else {
 268         EXPECT_EQ(ui::SelectionBound::CENTER, focus.type()) << from_str;
 269         EXPECT_EQ(ui::SelectionBound::CENTER, anchor.type()) << from_str;
 270       }
 271     }
 272   }
 273
 274   Widget* textfield_widget_;
 275   Widget* widget_;
 276
 277   Textfield* textfield_;
 278   scoped_ptr<TextfieldTestApi> textfield_test_api_;
 279   scoped_ptr<ViewsTouchEditingControllerFactory> views_tsc_factory_;
 280   scoped_ptr<aura::test::TestCursorClient> test_cursor_client_;
 281
 282  private:
 283   DISALLOW_COPY_AND_ASSIGN(TouchSelectionControllerImplTest);
 284 };
 285
 286 // Tests that the selection handles are placed appropriately when selection in
 287 // a Textfield changes.
 288 TEST_F(TouchSelectionControllerImplTest, SelectionInTextfieldTest) {
 289   CreateTextfield();
 290   textfield_->SetText(ASCIIToUTF16("some text"));
 291   // Tap the textfield to invoke touch selection.
 292   ui::GestureEventDetails details(ui::ET_GESTURE_TAP);
 293   details.set_tap_count(1);
 294   ui::GestureEvent tap(0, 0, 0, base::TimeDelta(), details);
 295   textfield_->OnGestureEvent(&tap);
 296
 297   // Test selecting a range.
 298   textfield_->SelectRange(gfx::Range(3, 7));
 299   VerifyHandlePositions(false, true, FROM_HERE);
 300
 301   // Test selecting everything.
 302   textfield_->SelectAll(false);
 303   VerifyHandlePositions(false, true, FROM_HERE);
 304
 305   // Test with no selection.
 306   textfield_->ClearSelection();
 307   VerifyHandlePositions(false, true, FROM_HERE);
 308
 309   // Test with lost focus.
 310   textfield_widget_->GetFocusManager()->ClearFocus();
 311   EXPECT_FALSE(GetSelectionController());
 312
 313   // Test with focus re-gained.
 314   textfield_widget_->GetFocusManager()->SetFocusedView(textfield_);
 315   EXPECT_FALSE(GetSelectionController());
 316   textfield_->OnGestureEvent(&tap);
 317   VerifyHandlePositions(false, true, FROM_HERE);
 318 }
 319
 320 // Tests that the selection handles are placed appropriately in bidi text.
 321 TEST_F(TouchSelectionControllerImplTest, SelectionInBidiTextfieldTest) {
 322   CreateTextfield();
 323   textfield_->SetText(WideToUTF16(L"abc\x05d0\x05d1\x05d2"));
 324   // Tap the textfield to invoke touch selection.
 325   ui::GestureEventDetails details(ui::ET_GESTURE_TAP);
 326   details.set_tap_count(1);
 327   ui::GestureEvent tap(0, 0, 0, base::TimeDelta(), details);
 328   textfield_->OnGestureEvent(&tap);
 329
 330   // Test cursor at run boundary and with empty selection.
 331   textfield_->SelectSelectionModel(
 332       gfx::SelectionModel(3, gfx::CURSOR_BACKWARD));
 333   VerifyHandlePositions(false, true, FROM_HERE);
 334
 335   // Test selection range inside one run and starts or ends at run boundary.
 336   textfield_->SelectRange(gfx::Range(2, 3));
 337   VerifyHandlePositions(false, true, FROM_HERE);
 338
 339   textfield_->SelectRange(gfx::Range(3, 2));
 340   VerifyHandlePositions(false, true, FROM_HERE);
 341
 342   // TODO(mfomitchev): crbug.com/429705
 343   // The correct behavior for handles in mixed ltr/rtl text line is not known,
 344   // so passing false for |check_direction| in some of these tests.
 345   textfield_->SelectRange(gfx::Range(3, 4));
 346   VerifyHandlePositions(false, false, FROM_HERE);
 347
 348   textfield_->SelectRange(gfx::Range(4, 3));
 349   VerifyHandlePositions(false, false, FROM_HERE);
 350
 351   textfield_->SelectRange(gfx::Range(3, 6));
 352   VerifyHandlePositions(false, false, FROM_HERE);
 353
 354   textfield_->SelectRange(gfx::Range(6, 3));
 355   VerifyHandlePositions(false, false, FROM_HERE);
 356
 357   // Test selection range accross runs.
 358   textfield_->SelectRange(gfx::Range(0, 6));
 359   VerifyHandlePositions(false, true, FROM_HERE);
 360
 361   textfield_->SelectRange(gfx::Range(6, 0));
 362   VerifyHandlePositions(false, true, FROM_HERE);
 363
 364   textfield_->SelectRange(gfx::Range(1, 4));
 365   VerifyHandlePositions(false, true, FROM_HERE);
 366
 367   textfield_->SelectRange(gfx::Range(4, 1));
 368   VerifyHandlePositions(false, true, FROM_HERE);
 369 }
 370
 371 // Tests if the SelectRect callback is called appropriately when selection
 372 // handles are moved.
 373 TEST_F(TouchSelectionControllerImplTest, SelectRectCallbackTest) {
 374   CreateTextfield();
 375   textfield_->SetText(ASCIIToUTF16("textfield with selected text"));
 376   // Tap the textfield to invoke touch selection.
 377   ui::GestureEventDetails details(ui::ET_GESTURE_TAP);
 378   details.set_tap_count(1);
 379   ui::GestureEvent tap(0, 0, 0, base::TimeDelta(), details);
 380   textfield_->OnGestureEvent(&tap);
 381   textfield_->SelectRange(gfx::Range(3, 7));
 382
 383   gfx::Point textfield_origin;
 384   textfield_->ConvertPointToScreen(&textfield_origin);
 385
 386   EXPECT_EQ("tfie", UTF16ToUTF8(textfield_->GetSelectedText()));
 387   VerifyHandlePositions(false, true, FROM_HERE);
 388
 389   // Drag selection handle 2 to right by 3 chars.
 390   const gfx::FontList& font_list = textfield_->GetFontList();
 391   int x = gfx::Canvas::GetStringWidth(ASCIIToUTF16("ld "), font_list);
 392   SimulateSelectionHandleDrag(gfx::Vector2d(x, 0), 2);
 393   EXPECT_EQ("tfield ", UTF16ToUTF8(textfield_->GetSelectedText()));
 394   VerifyHandlePositions(false, true, FROM_HERE);
 395
 396   // Drag selection handle 1 to the left by a large amount (selection should
 397   // just stick to the beginning of the textfield).
 398   SimulateSelectionHandleDrag(gfx::Vector2d(-50, 0), 1);
 399   EXPECT_EQ("textfield ", UTF16ToUTF8(textfield_->GetSelectedText()));
 400   VerifyHandlePositions(true, true, FROM_HERE);
 401
 402   // Drag selection handle 1 across selection handle 2.
 403   x = gfx::Canvas::GetStringWidth(ASCIIToUTF16("textfield with "), font_list);
 404   SimulateSelectionHandleDrag(gfx::Vector2d(x, 0), 1);
 405   EXPECT_EQ("with ", UTF16ToUTF8(textfield_->GetSelectedText()));
 406   VerifyHandlePositions(true, true, FROM_HERE);
 407
 408   // Drag selection handle 2 across selection handle 1.
 409   x = gfx::Canvas::GetStringWidth(ASCIIToUTF16("with selected "), font_list);
 410   SimulateSelectionHandleDrag(gfx::Vector2d(x, 0), 2);
 411   EXPECT_EQ("selected ", UTF16ToUTF8(textfield_->GetSelectedText()));
 412   VerifyHandlePositions(false, true, FROM_HERE);
 413 }
 414
 415 TEST_F(TouchSelectionControllerImplTest, SelectRectInBidiCallbackTest) {
 416   CreateTextfield();
 417   textfield_->SetText(WideToUTF16(L"abc\x05e1\x05e2\x05e3" L"def"));
 418   // Tap the textfield to invoke touch selection.
 419   ui::GestureEventDetails details(ui::ET_GESTURE_TAP);
 420   details.set_tap_count(1);
 421   ui::GestureEvent tap(0, 0, 0, base::TimeDelta(), details);
 422   textfield_->OnGestureEvent(&tap);
 423
 424   // Select [c] from left to right.
 425   textfield_->SelectRange(gfx::Range(2, 3));
 426   EXPECT_EQ(WideToUTF16(L"c"), textfield_->GetSelectedText());
 427   VerifyHandlePositions(false, true, FROM_HERE);
 428
 429   // Drag selection handle 2 to right by 1 char.
 430   const gfx::FontList& font_list = textfield_->GetFontList();
 431   int x = gfx::Canvas::GetStringWidth(WideToUTF16(L"\x05e3"), font_list);
 432   SimulateSelectionHandleDrag(gfx::Vector2d(x, 0), 2);
 433   EXPECT_EQ(WideToUTF16(L"c\x05e1\x05e2"), textfield_->GetSelectedText());
 434   VerifyHandlePositions(false, true, FROM_HERE);
 435
 436   // Drag selection handle 1 to left by 1 char.
 437   x = gfx::Canvas::GetStringWidth(WideToUTF16(L"b"), font_list);
 438   SimulateSelectionHandleDrag(gfx::Vector2d(-x, 0), 1);
 439   EXPECT_EQ(WideToUTF16(L"bc\x05e1\x05e2"), textfield_->GetSelectedText());
 440   VerifyHandlePositions(true, true, FROM_HERE);
 441
 442   // Select [c] from right to left.
 443   textfield_->SelectRange(gfx::Range(3, 2));
 444   EXPECT_EQ(WideToUTF16(L"c"), textfield_->GetSelectedText());
 445   VerifyHandlePositions(false, true, FROM_HERE);
 446
 447   // Drag selection handle 1 to right by 1 char.
 448   x = gfx::Canvas::GetStringWidth(WideToUTF16(L"\x05e3"), font_list);
 449   SimulateSelectionHandleDrag(gfx::Vector2d(x, 0), 1);
 450   EXPECT_EQ(WideToUTF16(L"c\x05e1\x05e2"), textfield_->GetSelectedText());
 451   VerifyHandlePositions(true, true, FROM_HERE);
 452
 453   // Drag selection handle 2 to left by 1 char.
 454   x = gfx::Canvas::GetStringWidth(WideToUTF16(L"b"), font_list);
 455   SimulateSelectionHandleDrag(gfx::Vector2d(-x, 0), 2);
 456   EXPECT_EQ(WideToUTF16(L"bc\x05e1\x05e2"), textfield_->GetSelectedText());
 457   VerifyHandlePositions(false, true, FROM_HERE);
 458
 459   // Select [\x5e1] from right to left.
 460   textfield_->SelectRange(gfx::Range(3, 4));
 461   EXPECT_EQ(WideToUTF16(L"\x05e1"), textfield_->GetSelectedText());
 462   // TODO(mfomitchev): crbug.com/429705
 463   // The correct behavior for handles in mixed ltr/rtl text line is not known,
 464   // so passing false for |check_direction| in some of these tests.
 465   VerifyHandlePositions(false, false, FROM_HERE);
 466
 467   /* TODO(xji): for bidi text "abcDEF" whose display is "abcFEDhij", when click
 468      right of 'D' and select [D] then move the left selection handle to left
 469      by one character, it should select [ED], instead it selects [F].
 470      Reason: click right of 'D' and left of 'h' return the same x-axis position,
 471      pass this position to FindCursorPosition() returns index of 'h'. which
 472      means the selection start changed from 3 to 6.
 473      Need further investigation on whether this is a bug in Pango and how to
 474      work around it.
 475   // Drag selection handle 2 to left by 1 char.
 476   x = gfx::Canvas::GetStringWidth(WideToUTF16(L"\x05e2"), font_list);
 477   SimulateSelectionHandleDrag(gfx::Vector2d(-x, 0), 2);
 478   EXPECT_EQ(WideToUTF16(L"\x05e1\x05e2"), textfield_->GetSelectedText());
 479   VERIFY_HANDLE_POSITIONS(false);
 480   */
 481
 482   // Drag selection handle 1 to right by 1 char.
 483   x = gfx::Canvas::GetStringWidth(WideToUTF16(L"d"), font_list);
 484   SimulateSelectionHandleDrag(gfx::Vector2d(x, 0), 1);
 485   EXPECT_EQ(WideToUTF16(L"\x05e2\x05e3" L"d"), textfield_->GetSelectedText());
 486   VerifyHandlePositions(true, true, FROM_HERE);
 487
 488   // Select [\x5e1] from left to right.
 489   textfield_->SelectRange(gfx::Range(4, 3));
 490   EXPECT_EQ(WideToUTF16(L"\x05e1"), textfield_->GetSelectedText());
 491   VerifyHandlePositions(false, false, FROM_HERE);
 492
 493   /* TODO(xji): see detail of above commented out test case.
 494   // Drag selection handle 1 to left by 1 char.
 495   x = gfx::Canvas::GetStringWidth(WideToUTF16(L"\x05e2"), font_list);
 496   SimulateSelectionHandleDrag(gfx::Vector2d(-x, 0), 1);
 497   EXPECT_EQ(WideToUTF16(L"\x05e1\x05e2"), textfield_->GetSelectedText());
 498   VERIFY_HANDLE_POSITIONS(true);
 499   */
 500
 501   // Drag selection handle 2 to right by 1 char.
 502   x = gfx::Canvas::GetStringWidth(WideToUTF16(L"d"), font_list);
 503   SimulateSelectionHandleDrag(gfx::Vector2d(x, 0), 2);
 504   EXPECT_EQ(WideToUTF16(L"\x05e2\x05e3" L"d"), textfield_->GetSelectedText());
 505   VerifyHandlePositions(false, true, FROM_HERE);
 506
 507   // Select [\x05r3] from right to left.
 508   textfield_->SelectRange(gfx::Range(5, 6));
 509   EXPECT_EQ(WideToUTF16(L"\x05e3"), textfield_->GetSelectedText());
 510   VerifyHandlePositions(false, false, FROM_HERE);
 511
 512   // Drag selection handle 2 to left by 1 char.
 513   x = gfx::Canvas::GetStringWidth(WideToUTF16(L"c"), font_list);
 514   SimulateSelectionHandleDrag(gfx::Vector2d(-x, 0), 2);
 515   EXPECT_EQ(WideToUTF16(L"c\x05e1\x05e2"), textfield_->GetSelectedText());
 516   VerifyHandlePositions(false, true, FROM_HERE);
 517
 518   // Drag selection handle 1 to right by 1 char.
 519   x = gfx::Canvas::GetStringWidth(WideToUTF16(L"\x05e2"), font_list);
 520   SimulateSelectionHandleDrag(gfx::Vector2d(x, 0), 1);
 521   EXPECT_EQ(WideToUTF16(L"c\x05e1"), textfield_->GetSelectedText());
 522   VerifyHandlePositions(true, true, FROM_HERE);
 523
 524   // Select [\x05r3] from left to right.
 525   textfield_->SelectRange(gfx::Range(6, 5));
 526   EXPECT_EQ(WideToUTF16(L"\x05e3"), textfield_->GetSelectedText());
 527   VerifyHandlePositions(false, false, FROM_HERE);
 528
 529   // Drag selection handle 1 to left by 1 char.
 530   x = gfx::Canvas::GetStringWidth(WideToUTF16(L"c"), font_list);
 531   SimulateSelectionHandleDrag(gfx::Vector2d(-x, 0), 1);
 532   EXPECT_EQ(WideToUTF16(L"c\x05e1\x05e2"), textfield_->GetSelectedText());
 533   VerifyHandlePositions(true, true, FROM_HERE);
 534
 535   // Drag selection handle 2 to right by 1 char.
 536   x = gfx::Canvas::GetStringWidth(WideToUTF16(L"\x05e2"), font_list);
 537   SimulateSelectionHandleDrag(gfx::Vector2d(x, 0), 2);
 538   EXPECT_EQ(WideToUTF16(L"c\x05e1"), textfield_->GetSelectedText());
 539   VerifyHandlePositions(false, false, FROM_HERE);
 540 }
 541
 542 TEST_F(TouchSelectionControllerImplTest,
 543        HiddenSelectionHandleRetainsCursorPosition) {
 544   // Create a textfield with lots of text in it.
 545   CreateTextfield();
 546   std::string textfield_text("some text");
 547   for (int i = 0; i < 10; ++i)
 548     textfield_text += textfield_text;
 549   textfield_->SetText(ASCIIToUTF16(textfield_text));
 550
 551   // Tap the textfield to invoke selection.
 552   ui::GestureEventDetails details(ui::ET_GESTURE_TAP);
 553   details.set_tap_count(1);
 554   ui::GestureEvent tap(0, 0, 0, base::TimeDelta(), details);
 555   textfield_->OnGestureEvent(&tap);
 556
 557   // Select some text such that one handle is hidden.
 558   textfield_->SelectRange(gfx::Range(10, textfield_text.length()));
 559
 560   // Check that one selection handle is hidden.
 561   EXPECT_FALSE(IsSelectionHandle1Visible());
 562   EXPECT_TRUE(IsSelectionHandle2Visible());
 563   EXPECT_EQ(gfx::Range(10, textfield_text.length()),
 564             textfield_->GetSelectedRange());
 565
 566   // Drag the visible handle around and make sure the selection end point of the
 567   // invisible handle does not change.
 568   size_t visible_handle_position = textfield_->GetSelectedRange().end();
 569   for (int i = 0; i < 10; ++i) {
 570     static const int drag_diff = -10;
 571     SimulateSelectionHandleDrag(gfx::Vector2d(drag_diff, 0), 2);
 572     // Make sure that the visible handle is being dragged.
 573     EXPECT_NE(visible_handle_position, textfield_->GetSelectedRange().end());
 574     visible_handle_position = textfield_->GetSelectedRange().end();
 575     EXPECT_EQ((size_t) 10, textfield_->GetSelectedRange().start());
 576   }
 577 }
 578
 579 TEST_F(TouchSelectionControllerImplTest,
 580        DoubleTapInTextfieldWithCursorHandleShouldSelectText) {
 581   CreateTextfield();
 582   textfield_->SetText(ASCIIToUTF16("some text"));
 583   ui::test::EventGenerator generator(
 584       textfield_->GetWidget()->GetNativeView()->GetRootWindow());
 585
 586   // Tap the textfield to invoke touch selection.
 587   generator.GestureTapAt(gfx::Point(10, 10));
 588
 589   // Cursor handle should be visible.
 590   EXPECT_FALSE(textfield_->HasSelection());
 591   VerifyHandlePositions(false, true, FROM_HERE);
 592
 593   // Double tap on the cursor handle position. We want to check that the cursor
 594   // handle is not eating the event and that the event is falling through to the
 595   // textfield.
 596   gfx::Point cursor_pos = GetCursorHandleBounds().origin();
 597   cursor_pos.Offset(GetCursorHandleBounds().width() / 2, 0);
 598   generator.GestureTapAt(cursor_pos);
 599   generator.GestureTapAt(cursor_pos);
 600   EXPECT_TRUE(textfield_->HasSelection());
 601 }
 602
 603 // A simple implementation of TouchEditable that allows faking cursor position
 604 // inside its boundaries.
 605 class TestTouchEditable : public ui::TouchEditable {
 606  public:
 607   explicit TestTouchEditable(aura::Window* window)
 608       : window_(window) {
 609     DCHECK(window);
 610   }
 611
 612   void set_bounds(const gfx::Rect& bounds) {
 613     bounds_ = bounds;
 614   }
 615
 616   void set_cursor_rect(const gfx::Rect& cursor_rect) {
 617     cursor_bound_.SetEdge(cursor_rect.origin(), cursor_rect.bottom_left());
 618     cursor_bound_.set_type(ui::SelectionBound::Type::CENTER);
 619   }
 620
 621   ~TestTouchEditable() override {}
 622
 623  private:
 624   // Overridden from ui::TouchEditable.
 625   void SelectRect(const gfx::Point& start, const gfx::Point& end) override {
 626     NOTREACHED();
 627   }
 628   void MoveCaretTo(const gfx::Point& point) override { NOTREACHED(); }
 629   void GetSelectionEndPoints(ui::SelectionBound* anchor,
 630                              ui::SelectionBound* focus) override {
 631     *anchor = *focus = cursor_bound_;
 632   }
 633   gfx::Rect GetBounds() override { return gfx::Rect(bounds_.size()); }
 634   gfx::NativeView GetNativeView() const override { return window_; }
 635   void ConvertPointToScreen(gfx::Point* point) override {
 636     aura::client::ScreenPositionClient* screen_position_client =
 637         aura::client::GetScreenPositionClient(window_->GetRootWindow());
 638     if (screen_position_client)
 639       screen_position_client->ConvertPointToScreen(window_, point);
 640   }
 641   void ConvertPointFromScreen(gfx::Point* point) override {
 642     aura::client::ScreenPositionClient* screen_position_client =
 643         aura::client::GetScreenPositionClient(window_->GetRootWindow());
 644     if (screen_position_client)
 645       screen_position_client->ConvertPointFromScreen(window_, point);
 646   }
 647   bool DrawsHandles() override { return false; }
 648   void OpenContextMenu(const gfx::Point& anchor) override { NOTREACHED(); }
 649   void DestroyTouchSelection() override { NOTREACHED(); }
 650
 651   // Overridden from ui::SimpleMenuModel::Delegate.
 652   bool IsCommandIdChecked(int command_id) const override {
 653     NOTREACHED();
 654     return false;
 655   }
 656   bool IsCommandIdEnabled(int command_id) const override {
 657     NOTREACHED();
 658     return false;
 659   }
 660   bool GetAcceleratorForCommandId(int command_id,
 661                                   ui::Accelerator* accelerator) override {
 662     NOTREACHED();
 663     return false;
 664   }
 665   void ExecuteCommand(int command_id, int event_flags) override {
 666     NOTREACHED();
 667   }
 668
 669   aura::Window* window_;
 670
 671   // Boundaries of the client view.
 672   gfx::Rect bounds_;
 673
 674   // Cursor position inside the client view.
 675   //gfx::Rect cursor_rect_;
 676   ui::SelectionBound cursor_bound_;
 677
 678   DISALLOW_COPY_AND_ASSIGN(TestTouchEditable);
 679 };
 680
 681 // Tests if the touch editing handle is shown or hidden properly according to
 682 // the cursor position relative to the client boundaries.
 683 TEST_F(TouchSelectionControllerImplTest,
 684        VisibilityOfHandleRegardingClientBounds) {
 685   CreateWidget();
 686
 687   TestTouchEditable touch_editable(widget_->GetNativeView());
 688   scoped_ptr<ui::TouchEditingControllerDeprecated> touch_selection_controller(
 689       ui::TouchEditingControllerDeprecated::Create(&touch_editable));
 690
 691   touch_editable.set_bounds(gfx::Rect(0, 0, 100, 20));
 692
 693   // Put the cursor completely inside the client bounds. Handle should be
 694   // visible.
 695   touch_editable.set_cursor_rect(gfx::Rect(2, 0, 1, 20));
 696   touch_selection_controller->SelectionChanged();
 697   EXPECT_TRUE(IsCursorHandleVisibleFor(touch_selection_controller.get()));
 698
 699   // Move the cursor up such that |kBarMinHeight| pixels are still in the client
 700   // bounds. Handle should still be visible.
 701   touch_editable.set_cursor_rect(gfx::Rect(2, kBarMinHeight - 20, 1, 20));
 702   touch_selection_controller->SelectionChanged();
 703   EXPECT_TRUE(IsCursorHandleVisibleFor(touch_selection_controller.get()));
 704
 705   // Move the cursor up such that less than |kBarMinHeight| pixels are in the
 706   // client bounds. Handle should be hidden.
 707   touch_editable.set_cursor_rect(gfx::Rect(2, kBarMinHeight - 20 - 1, 1, 20));
 708   touch_selection_controller->SelectionChanged();
 709   EXPECT_FALSE(IsCursorHandleVisibleFor(touch_selection_controller.get()));
 710
 711   // Move the Cursor down such that |kBarBottomAllowance| pixels are out of the
 712   // client bounds. Handle should be visible.
 713   touch_editable.set_cursor_rect(gfx::Rect(2, kBarBottomAllowance, 1, 20));
 714   touch_selection_controller->SelectionChanged();
 715   EXPECT_TRUE(IsCursorHandleVisibleFor(touch_selection_controller.get()));
 716
 717   // Move the cursor down such that more than |kBarBottomAllowance| pixels are
 718   // out of the client bounds. Handle should be hidden.
 719   touch_editable.set_cursor_rect(gfx::Rect(2, kBarBottomAllowance + 1, 1, 20));
 720   touch_selection_controller->SelectionChanged();
 721   EXPECT_FALSE(IsCursorHandleVisibleFor(touch_selection_controller.get()));
 722
 723   touch_selection_controller.reset();
 724 }
 725
 726 TEST_F(TouchSelectionControllerImplTest, HandlesStackAboveParent) {
 727   ui::EventTarget* root = GetContext();
 728   ui::EventTargeter* targeter = root->GetEventTargeter();
 729
 730   // Create the first window containing a Views::Textfield.
 731   CreateTextfield();
 732   aura::Window* window1 = textfield_widget_->GetNativeView();
 733
 734   // Start touch editing, check that the handle is above the first window, and
 735   // end touch editing.
 736   StartTouchEditing();
 737   gfx::Point test_point = GetCursorHandleDragPoint();
 738   ui::MouseEvent test_event1(ui::ET_MOUSE_MOVED, test_point, test_point,
 739                              ui::EF_NONE, ui::EF_NONE);
 740   EXPECT_EQ(GetCursorHandleNativeView(),
 741             targeter->FindTargetForEvent(root, &test_event1));
 742   EndTouchEditing();
 743
 744   // Create the second (empty) window over the first one.
 745   CreateWidget();
 746   aura::Window* window2 = widget_->GetNativeView();
 747
 748   // Start touch editing (in the first window) and check that the handle is not
 749   // above the second window.
 750   StartTouchEditing();
 751   ui::MouseEvent test_event2(ui::ET_MOUSE_MOVED, test_point, test_point,
 752                              ui::EF_NONE, ui::EF_NONE);
 753   EXPECT_EQ(window2, targeter->FindTargetForEvent(root, &test_event2));
 754
 755   // Move the first window to top and check that the handle is kept above the
 756   // first window.
 757   window1->GetRootWindow()->StackChildAtTop(window1);
 758   ui::MouseEvent test_event3(ui::ET_MOUSE_MOVED, test_point, test_point,
 759                              ui::EF_NONE, ui::EF_NONE);
 760   EXPECT_EQ(GetCursorHandleNativeView(),
 761             targeter->FindTargetForEvent(root, &test_event3));
 762 }
 763
 764 // A simple implementation of TouchEditingMenuController that enables all
 765 // available commands.
 766 class TestTouchEditingMenuController : public TouchEditingMenuController {
 767  public:
 768   TestTouchEditingMenuController() {}
 769   ~TestTouchEditingMenuController() override {}
 770
 771   // Overriden from TouchEditingMenuController.
 772   bool IsCommandIdEnabled(int command_id) const override {
 773     // Return true, since we want the menu to have all |kMenuCommandCount|
 774     // available commands.
 775     return true;
 776   }
 777   void ExecuteCommand(int command_id, int event_flags) override {
 778     NOTREACHED();
 779   }
 780   void OpenContextMenu() override { NOTREACHED(); }
 781   void OnMenuClosed(TouchEditingMenuView* menu) override {}
 782
 783  private:
 784   DISALLOW_COPY_AND_ASSIGN(TestTouchEditingMenuController);
 785 };
 786
 787 // Tests if anchor rect for touch editing quick menu is adjusted correctly based
 788 // on the distance of handles.
 789 TEST_F(TouchSelectionControllerImplTest, QuickMenuAdjustsAnchorRect) {
 790   CreateWidget();
 791   aura::Window* window = widget_->GetNativeView();
 792
 793   scoped_ptr<TestTouchEditingMenuController> quick_menu_controller(
 794       new TestTouchEditingMenuController());
 795
 796   // Some arbitrary size for touch editing handle image.
 797   gfx::Size handle_image_size(10, 10);
 798
 799   // Calculate the width of quick menu. In addition to |kMenuCommandCount|
 800   // commands, there is an item for ellipsis.
 801   int quick_menu_width = (kMenuCommandCount + 1) * kMenuButtonWidth +
 802                          kMenuCommandCount;
 803
 804   // Set anchor rect's width a bit smaller than the quick menu width plus handle
 805   // image width and check that anchor rect's height is adjusted.
 806   gfx::Rect anchor_rect(
 807       0, 0, quick_menu_width + handle_image_size.width() - 10, 20);
 808   TouchEditingMenuView* quick_menu(TouchEditingMenuView::Create(
 809       quick_menu_controller.get(), anchor_rect, handle_image_size, window));
 810   anchor_rect.Inset(0, 0, 0, -handle_image_size.height());
 811   EXPECT_EQ(anchor_rect.ToString(), quick_menu->GetAnchorRect().ToString());
 812
 813   // Set anchor rect's width a bit greater than the quick menu width plus handle
 814   // image width and check that anchor rect's height is not adjusted.
 815   anchor_rect =
 816       gfx::Rect(0, 0, quick_menu_width + handle_image_size.width() + 10, 20);
 817   quick_menu = TouchEditingMenuView::Create(
 818       quick_menu_controller.get(), anchor_rect, handle_image_size, window);
 819   EXPECT_EQ(anchor_rect.ToString(), quick_menu->GetAnchorRect().ToString());
 820
 821   // Close the widget, hence quick menus, before quick menu controller goes out
 822   // of scope.
 823   widget_->CloseNow();
 824   widget_ = nullptr;
 825 }
 826
 827 TEST_F(TouchSelectionControllerImplTest, MouseEventDeactivatesTouchSelection) {
 828   CreateTextfield();
 829   EXPECT_FALSE(GetSelectionController());
 830
 831   ui::test::EventGenerator generator(
 832       textfield_widget_->GetNativeView()->GetRootWindow());
 833
 834   generator.set_current_location(gfx::Point(5, 5));
 835   RunPendingMessages();
 836
 837   // Start touch editing; then move mouse over the textfield and ensure it
 838   // deactivates touch selection.
 839   StartTouchEditing();
 840   EXPECT_TRUE(GetSelectionController());
 841   generator.MoveMouseTo(gfx::Point(5, 10));
 842   RunPendingMessages();
 843   EXPECT_FALSE(GetSelectionController());
 844
 845   generator.MoveMouseTo(gfx::Point(5, 50));
 846   RunPendingMessages();
 847
 848   // Start touch editing; then move mouse out of the textfield, but inside the
 849   // winow and ensure it deactivates touch selection.
 850   StartTouchEditing();
 851   EXPECT_TRUE(GetSelectionController());
 852   generator.MoveMouseTo(gfx::Point(5, 55));
 853   RunPendingMessages();
 854   EXPECT_FALSE(GetSelectionController());
 855
 856   generator.MoveMouseTo(gfx::Point(5, 500));
 857   RunPendingMessages();
 858
 859   // Start touch editing; then move mouse out of the textfield and window and
 860   // ensure it deactivates touch selection.
 861   StartTouchEditing();
 862   EXPECT_TRUE(GetSelectionController());
 863   generator.MoveMouseTo(5, 505);
 864   RunPendingMessages();
 865   EXPECT_FALSE(GetSelectionController());
 866 }
 867
 868 TEST_F(TouchSelectionControllerImplTest, KeyEventDeactivatesTouchSelection) {
 869   CreateTextfield();
 870   EXPECT_FALSE(GetSelectionController());
 871
 872   ui::test::EventGenerator generator(
 873       textfield_widget_->GetNativeView()->GetRootWindow());
 874
 875   RunPendingMessages();
 876
 877   // Start touch editing; then press a key and ensure it deactivates touch
 878   // selection.
 879   StartTouchEditing();
 880   EXPECT_TRUE(GetSelectionController());
 881   generator.PressKey(ui::VKEY_A, 0);
 882   RunPendingMessages();
 883   EXPECT_FALSE(GetSelectionController());
 884 }
 885
 886 }  // namespace views