Reland: Implement Aura side of unified touch text selection for contents

ui/touch_selection/touch_selection_controller_aura_unittest.cc

Index: ui/touch_selection/touch_selection_controller_aura_unittest.cc
diff --git a/ui/touch_selection/touch_selection_controller_aura_unittest.cc b/ui/touch_selection/touch_selection_controller_aura_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..26e3c4f6e21f532253abe5df59d9ccbc09a6b9c2
--- /dev/null
+++ b/ui/touch_selection/touch_selection_controller_aura_unittest.cc
@@ -0,0 +1,395 @@
+// Copyright 2015 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/touch_selection/touch_selection_controller_aura.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/aura/test/aura_test_base.h"
+#include "ui/aura/window.h"
+#include "ui/events/test/event_generator.h"
+#include "ui/touch_selection/touch_handle_drawable_aura.h"
+#include "ui/touch_selection/touch_selection_menu_runner.h"
+
+namespace ui {
+namespace {
+
+// A mock implementation for TouchSelectionMenuRunner used in tests.
+class TestTouchSelectionMenuRunner : public TouchSelectionMenuRunner {
+ public:
+  TestTouchSelectionMenuRunner() {}
+  ~TestTouchSelectionMenuRunner() override {}
+
+  bool is_running() const { return is_running_; }
+
+ private:
+  // TouchSelectionMenuRunner:
+  void RunMenu(TouchSelectionMenuClient* client,
+               const gfx::Rect& anchor_rect,
+               const gfx::Size& handle_image_size,
+               aura::Window* context) override {
+    is_running_ = true;
+  }
+
+  void CloseMenu() override {
+    is_running_ = false;
+  }
+
+  bool IsRunning() const override {
+    return is_running_;
+  }
+
+  bool is_running_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestTouchSelectionMenuRunner);
+};
+
+// Convenience to make constructing a GestureEvent simpler.
+class GestureEventForTest : public GestureEvent {
+ public:
+  GestureEventForTest(EventType type, int x, int y)
+      : GestureEvent(x, y, 0, base::TimeDelta(),
+                     GestureEventDetails(type)) {}
+};
+
+// Convenience to make constructing a TouchEvent simpler.
+class TouchEventForTest : public TouchEvent {
+ public:
+  TouchEventForTest(EventType type, gfx::Point location)
+      : TouchEvent(type, location, 0, base::TimeDelta()) {}
+};
+
+}  // namespace
+
+// A subclass of TouchSelectionControllerAura which adds some test functionality
+// to it.
+class TestTouchSelectionControllerAura
+    : public TouchSelectionControllerAura {
+ public:
+  TestTouchSelectionControllerAura(TouchSelectionControllerAuraClient* client)
+      : TouchSelectionControllerAura(client),
+        last_drawable_(nullptr) {
+    set_immediate_quick_menu_for_testing(true);
+  }
+
+  ~TestTouchSelectionControllerAura() override {}
+
+  TouchHandleDrawable* last_drawable() const { return last_drawable_; }
+
+  bool is_insertion_active() const {
+    return is_insertion_active_for_testing();
+  }
+
+  bool is_selection_active() const {
+    return is_selection_active_for_testing();
+  }
+
+ protected:
+  // TouchSelectionControllerAura:
+  scoped_ptr<TouchHandleDrawable> CreateDrawable() override {
+    scoped_ptr<TouchHandleDrawable> drawable =
+        TouchSelectionControllerAura::CreateDrawable();
+    last_drawable_ = drawable.get();
+    return drawable;
+  }
+
+ private:
+  TouchHandleDrawable* last_drawable_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestTouchSelectionControllerAura);
+};
+
+class TouchSelectionControllerAuraTest
+    : public aura::test::AuraTestBase,
+      public TouchSelectionControllerAuraClient {
+ public:
+  TouchSelectionControllerAuraTest() {}
+  ~TouchSelectionControllerAuraTest() override {}
+
+ protected:
+  void ChangeSelection(const gfx::PointF& start_top,
+                       const gfx::PointF& start_bottom,
+                       const gfx::PointF& end_top,
+                       const gfx::PointF& end_bottom) {
+    SelectionBound start_bound, end_bound;
+    start_bound.set_type(SelectionBound::LEFT);
+    end_bound.set_type(SelectionBound::RIGHT);
+    start_bound.SetEdge(start_top, start_bottom);
+    end_bound.SetEdge(end_top, end_bottom);
+    start_bound.set_visible(true);
+    end_bound.set_visible(true);
+    controller_->OnSelectionBoundsUpdated(start_bound, end_bound);
+  }
+
+  void ChangeInsertion(const gfx::Point& top,
+                       const gfx::Point& bottom) {
+    SelectionBound bound;
+    bound.set_type(SelectionBound::CENTER);
+    bound.SetEdge(top, bottom);
+    bound.set_visible(true);
+    controller_->OnSelectionBoundsUpdated(bound, bound);
+  }
+
+  void ClearSelection() {
+    controller_->OnSelectionBoundsUpdated(SelectionBound(), SelectionBound());
+  }
+
+  void ClearInsertion() { ClearSelection(); }
+
+  aura::Window* parent_window() const { return parent_window_.get(); }
+
+  TestTouchSelectionMenuRunner* menu_runner() const {
+    return menu_runner_.get();
+  }
+
+  TestTouchSelectionControllerAura* controller() const {
+    return controller_.get();
+  }
+
+ private:
+  // aura::test::AuraTestBase:
+  void SetUp() override {
+    AuraTestBase::SetUp();
+
+    menu_runner_.reset(new TestTouchSelectionMenuRunner());
+
+    parent_window_.reset(CreateNormalWindow(0, root_window(), nullptr));
+    parent_window_->SetBounds(gfx::Rect(0, 0, 400, 400));
+
+    controller_.reset(new TestTouchSelectionControllerAura(this));
+  }
+
+  void TearDown() override {
+    controller_.reset();
+    parent_window_.reset();
+    menu_runner_.reset();
+
+    AuraTestBase::TearDown();
+  }
+
+  // TouchSelectionControllerAuraClient:
+  void MoveCaret(const gfx::PointF& position) override {}
+
+  void MoveRangeSelectionExtent(const gfx::PointF& extent) override {}
+
+  void SelectBetweenCoordinates(const gfx::PointF& base,
+                                const gfx::PointF& extent) override {}
+
+  aura::Window* GetParentWindow() const override {
+    return parent_window_.get();
+  }
+
+  gfx::Rect GetClientBounds() const override {
+    return parent_window_->bounds();
+  }
+
+  bool IsCommandIdEnabled(int command_id) const override { return true; }
+
+  void ExecuteCommand(int command_id, int event_flags) override {}
+
+  void OpenContextMenu(const gfx::PointF& point) override {}
+
+  scoped_ptr<aura::Window> parent_window_;
+  scoped_ptr<TestTouchSelectionControllerAura> controller_;
+  scoped_ptr<TestTouchSelectionMenuRunner> menu_runner_;
+
+  DISALLOW_COPY_AND_ASSIGN(TouchSelectionControllerAuraTest);
+};
+
+// Tests if touch selection quick menu is shown when touch selection is
+// activated and hidden when touch selection is deactivated.
+TEST_F(TouchSelectionControllerAuraTest, QuickMenuShowHide) {
+  gfx::Point top(5, 5);
+  gfx::Point bottom(5, 15);
+
+  controller()->OnSelectionEditable(true);
+  GestureEventForTest tap(ET_GESTURE_TAP, top.x(), top.y());
+  controller()->HandleGestureEvent(&tap);
+  ChangeInsertion(top, bottom);
+  EXPECT_TRUE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+  EXPECT_TRUE(menu_runner()->is_running());
+
+  ClearInsertion();
+  EXPECT_FALSE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+  EXPECT_FALSE(menu_runner()->is_running());
+}
+
+// Tests if touch selection quick menu is hidden during a scroll.
+TEST_F(TouchSelectionControllerAuraTest, QuickMenuHiddenOnScroll) {
+  gfx::Point top(5, 5);
+  gfx::Point bottom(5, 15);
+
+  controller()->OnSelectionEditable(true);
+  GestureEventForTest tap(ET_GESTURE_TAP, top.x(), top.y());
+  controller()->HandleGestureEvent(&tap);
+  ChangeInsertion(top, bottom);
+  EXPECT_TRUE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+  EXPECT_TRUE(menu_runner()->is_running());
+
+  GestureEventForTest scroll_begin(ET_GESTURE_SCROLL_BEGIN, top.x(), top.y());
+  controller()->HandleGestureEvent(&scroll_begin);
+  EXPECT_TRUE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+  EXPECT_FALSE(menu_runner()->is_running());
+
+  GestureEventForTest scroll_end(ET_GESTURE_SCROLL_END, top.x(), top.y());
+  controller()->HandleGestureEvent(&scroll_end);
+  EXPECT_TRUE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+  EXPECT_TRUE(menu_runner()->is_running());
+
+  ClearInsertion();
+  EXPECT_FALSE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+  EXPECT_FALSE(menu_runner()->is_running());
+}
+
+// Tests if touch selection quick menu is hidden while a handle is being
+// dragged.
+TEST_F(TouchSelectionControllerAuraTest, QuickMenuHiddenOnHandleDrag) {
+  gfx::Point top(5, 5);
+  gfx::Point bottom(5, 15);
+
+  controller()->OnSelectionEditable(true);
+  GestureEventForTest tap(ET_GESTURE_TAP, top.x(), top.y());
+  controller()->HandleGestureEvent(&tap);
+  ChangeInsertion(top, bottom);
+  EXPECT_TRUE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+  EXPECT_TRUE(menu_runner()->is_running());
+
+  gfx::RectF handle_bounds = controller()->last_drawable()->GetVisibleBounds();
+  gfx::Point drag_point = gfx::ToRoundedPoint(handle_bounds.CenterPoint());
+
+  TouchEventForTest touch_pressed(ET_TOUCH_PRESSED, drag_point);
+  controller()->HandleTouchEvent(&touch_pressed);
+  EXPECT_TRUE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+  EXPECT_FALSE(menu_runner()->is_running());
+
+  TouchEventForTest touch_released(ET_TOUCH_RELEASED, drag_point);
+  controller()->HandleTouchEvent(&touch_released);
+  EXPECT_TRUE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+  EXPECT_TRUE(menu_runner()->is_running());
+
+  ClearInsertion();
+  EXPECT_FALSE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+  EXPECT_FALSE(menu_runner()->is_running());
+}
+
+// Tests if taps on selection in an editable text are handled properly.
+TEST_F(TouchSelectionControllerAuraTest, TapOnEditableSelection) {
+  gfx::Point start_top(5, 5);
+  gfx::Point start_bottom(5, 15);
+  gfx::Point middle(15, 10);
+  gfx::Point end_top(25, 5);
+  gfx::Point end_bottom(25, 15);
+
+  controller()->OnSelectionEditable(true);
+  ChangeSelection(start_top, start_bottom, end_top, end_bottom);
+  EXPECT_FALSE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+
+  // When touch selection is inactive, tapping on selection should consume the
+  // event and activate touch selection.
+  GestureEventForTest tap1(ET_GESTURE_TAP, middle.x(), middle.y());
+  controller()->HandleGestureEvent(&tap1);
+  EXPECT_TRUE(tap1.handled());
+  EXPECT_FALSE(controller()->is_insertion_active());
+  EXPECT_TRUE(controller()->is_selection_active());
+
+  // When touch selection is active, tapping on selection should leave the event
+  // unhandled, so that the event can be forwarded to the renderer.
+  GestureEventForTest tap2(ET_GESTURE_TAP, middle.x(), middle.y());
+  controller()->HandleGestureEvent(&tap2);
+  EXPECT_FALSE(tap2.handled());
+  EXPECT_FALSE(controller()->is_insertion_active());
+  EXPECT_TRUE(controller()->is_selection_active());
+
+  ClearSelection();
+  EXPECT_FALSE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+}
+
+// Tests if taps on selection in a non-editable text are handled properly.
+TEST_F(TouchSelectionControllerAuraTest, TapOnNonEditableSelection) {
+  gfx::Point start_top(5, 5);
+  gfx::Point start_bottom(5, 15);
+  gfx::Point middle(15, 10);
+  gfx::Point end_top(25, 5);
+  gfx::Point end_bottom(25, 15);
+
+  controller()->OnSelectionEditable(false);
+  ChangeSelection(start_top, start_bottom, end_top, end_bottom);
+  EXPECT_FALSE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+
+  // When touch selection is inactive, tapping on selection should consume the
+  // event and activate touch selection.
+  GestureEventForTest tap1(ET_GESTURE_TAP, middle.x(), middle.y());
+  controller()->HandleGestureEvent(&tap1);
+  EXPECT_TRUE(tap1.handled());
+  EXPECT_FALSE(controller()->is_insertion_active());
+  EXPECT_TRUE(controller()->is_selection_active());
+
+  // When touch selection is active, tapping on selection should consume the
+  // event to prevent it from being forwarded to the renderer.
+  GestureEventForTest tap2(ET_GESTURE_TAP, middle.x(), middle.y());
+  controller()->HandleGestureEvent(&tap2);
+  EXPECT_TRUE(tap2.handled());
+  EXPECT_FALSE(controller()->is_insertion_active());
+  EXPECT_TRUE(controller()->is_selection_active());
+
+  ClearSelection();
+  EXPECT_FALSE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+}
+
+// Tests if touch selection is deactivated on a key event.
+TEST_F(TouchSelectionControllerAuraTest, DeactivatedOnKeyEvent) {
+  gfx::Point top(5, 5);
+  gfx::Point bottom(5, 15);
+
+  RunAllPendingInMessageLoop();
+  controller()->OnSelectionEditable(true);
+  GestureEventForTest tap(ET_GESTURE_TAP, top.x(), top.y());
+  controller()->HandleGestureEvent(&tap);
+  ChangeInsertion(top, bottom);
+  EXPECT_TRUE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+
+  test::EventGenerator generator(root_window());
+  generator.PressKey(VKEY_A, 0);
+  RunAllPendingInMessageLoop();
+  EXPECT_FALSE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+}
+
+// Tests if touch selection is deactivated on a mouse event.
+TEST_F(TouchSelectionControllerAuraTest, DeactivatedOnMouseEvent) {
+  gfx::Point top(5, 5);
+  gfx::Point bottom(5, 15);
+
+  RunAllPendingInMessageLoop();
+  controller()->OnSelectionEditable(true);
+  GestureEventForTest tap(ET_GESTURE_TAP, top.x(), top.y());
+  controller()->HandleGestureEvent(&tap);
+  ChangeInsertion(top, bottom);
+  EXPECT_TRUE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+
+  test::EventGenerator generator(root_window());
+  generator.set_current_location(top);
+  RunAllPendingInMessageLoop();
+  generator.MoveMouseTo(bottom);
+  RunAllPendingInMessageLoop();
+  EXPECT_FALSE(controller()->is_insertion_active());
+  EXPECT_FALSE(controller()->is_selection_active());
+}
+
+}  // namespace ui