ui/chromeos/ime/candidate_view_unittest.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/ime/candidate_view.h"
   6
   7 #include "base/logging.h"
   8 #include "base/strings/utf_string_conversions.h"
   9 #include "ui/aura/window.h"
  10 #include "ui/events/test/event_generator.h"
  11 #include "ui/views/controls/button/button.h"
  12 #include "ui/views/layout/box_layout.h"
  13 #include "ui/views/layout/fill_layout.h"
  14 #include "ui/views/test/views_test_base.h"
  15 #include "ui/views/widget/widget_delegate.h"
  16
  17 namespace ui {
  18 namespace ime {
  19 namespace {
  20
  21 const char* const kDummyCandidates[] = {
  22   "candidate1",
  23   "candidate2",
  24   "candidate3",
  25 };
  26
  27 }  // namespace
  28
  29 class CandidateViewTest : public views::ViewsTestBase,
  30                           public views::ButtonListener {
  31  public:
  32   CandidateViewTest() : widget_(NULL), last_pressed_(NULL) {}
  33   ~CandidateViewTest() override {}
  34
  35   void SetUp() override {
  36     views::ViewsTestBase::SetUp();
  37
  38     views::Widget::InitParams init_params(CreateParams(
  39         views::Widget::InitParams::TYPE_WINDOW));
  40
  41     init_params.delegate = new views::WidgetDelegateView();
  42
  43     container_ = init_params.delegate->GetContentsView();
  44     container_->SetLayoutManager(
  45         new views::BoxLayout(views::BoxLayout::kVertical, 0, 0, 0));
  46     for (size_t i = 0; i < arraysize(kDummyCandidates); ++i) {
  47       CandidateView* candidate = new CandidateView(
  48           this, ui::CandidateWindow::VERTICAL);
  49       ui::CandidateWindow::Entry entry;
  50       entry.value = base::UTF8ToUTF16(kDummyCandidates[i]);
  51       candidate->SetEntry(entry);
  52       container_->AddChildView(candidate);
  53     }
  54
  55     widget_ = new views::Widget();
  56     widget_->Init(init_params);
  57     widget_->Show();
  58
  59     aura::Window* native_window = widget_->GetNativeWindow();
  60     event_generator_.reset(new ui::test::EventGenerator(
  61         native_window->GetRootWindow(), native_window));
  62   }
  63
  64   void TearDown() override {
  65     widget_->Close();
  66
  67     views::ViewsTestBase::TearDown();
  68   }
  69
  70  protected:
  71   CandidateView* GetCandidateAt(int index) {
  72     return static_cast<CandidateView*>(container_->child_at(index));
  73   }
  74
  75   int GetHighlightedIndex(int* highlighted_count) const {
  76     *highlighted_count = 0;
  77     int last_highlighted = -1;
  78     for (int i = 0; i < container_->child_count(); ++i) {
  79       if (container_->child_at(i)->background() != NULL) {
  80         (*highlighted_count)++;
  81         last_highlighted = i;
  82       }
  83     }
  84     return last_highlighted;
  85   }
  86
  87   int GetLastPressedIndexAndReset() {
  88     for (int i = 0; i < container_->child_count(); ++i) {
  89       if (last_pressed_ == container_->child_at(i)) {
  90         last_pressed_ = NULL;
  91         return i;
  92       }
  93     }
  94
  95     DCHECK(last_pressed_ == NULL);
  96     last_pressed_ = NULL;
  97     return -1;
  98   }
  99
 100   ui::test::EventGenerator* event_generator() { return event_generator_.get(); }
 101
 102  private:
 103   void ButtonPressed(views::Button* sender, const ui::Event& event) override {
 104     last_pressed_ = sender;
 105   }
 106
 107   views::Widget* widget_;
 108   views::View* container_;
 109   scoped_ptr<ui::test::EventGenerator> event_generator_;
 110   views::View* last_pressed_;
 111
 112   DISALLOW_COPY_AND_ASSIGN(CandidateViewTest);
 113 };
 114
 115 TEST_F(CandidateViewTest, MouseHovers) {
 116   GetCandidateAt(0)->SetHighlighted(true);
 117
 118   int highlighted_count = 0;
 119   EXPECT_EQ(0, GetHighlightedIndex(&highlighted_count));
 120   EXPECT_EQ(1, highlighted_count);
 121
 122   // Mouse hover shouldn't change the background.
 123   event_generator()->MoveMouseTo(
 124       GetCandidateAt(0)->GetBoundsInScreen().CenterPoint());
 125   EXPECT_EQ(0, GetHighlightedIndex(&highlighted_count));
 126   EXPECT_EQ(1, highlighted_count);
 127
 128   // Mouse hover shouldn't change the background.
 129   event_generator()->MoveMouseTo(
 130       GetCandidateAt(1)->GetBoundsInScreen().CenterPoint());
 131   EXPECT_EQ(0, GetHighlightedIndex(&highlighted_count));
 132   EXPECT_EQ(1, highlighted_count);
 133
 134   // Mouse hover shouldn't change the background.
 135   event_generator()->MoveMouseTo(
 136       GetCandidateAt(2)->GetBoundsInScreen().CenterPoint());
 137   EXPECT_EQ(0, GetHighlightedIndex(&highlighted_count));
 138   EXPECT_EQ(1, highlighted_count);
 139 }
 140
 141 TEST_F(CandidateViewTest, MouseClick) {
 142   event_generator()->MoveMouseTo(
 143       GetCandidateAt(1)->GetBoundsInScreen().CenterPoint());
 144   event_generator()->ClickLeftButton();
 145   EXPECT_EQ(1, GetLastPressedIndexAndReset());
 146 }
 147
 148 TEST_F(CandidateViewTest, ClickAndMove) {
 149   GetCandidateAt(0)->SetHighlighted(true);
 150
 151   int highlighted_count = 0;
 152   EXPECT_EQ(0, GetHighlightedIndex(&highlighted_count));
 153   EXPECT_EQ(1, highlighted_count);
 154
 155   event_generator()->MoveMouseTo(
 156       GetCandidateAt(2)->GetBoundsInScreen().CenterPoint());
 157   event_generator()->PressLeftButton();
 158   EXPECT_EQ(2, GetHighlightedIndex(&highlighted_count));
 159   EXPECT_EQ(1, highlighted_count);
 160
 161   // Highlight follows the drag.
 162   event_generator()->MoveMouseTo(
 163       GetCandidateAt(1)->GetBoundsInScreen().CenterPoint());
 164   EXPECT_EQ(1, GetHighlightedIndex(&highlighted_count));
 165   EXPECT_EQ(1, highlighted_count);
 166
 167   event_generator()->MoveMouseTo(
 168       GetCandidateAt(0)->GetBoundsInScreen().CenterPoint());
 169   EXPECT_EQ(0, GetHighlightedIndex(&highlighted_count));
 170   EXPECT_EQ(1, highlighted_count);
 171
 172   event_generator()->MoveMouseTo(
 173       GetCandidateAt(1)->GetBoundsInScreen().CenterPoint());
 174   EXPECT_EQ(1, GetHighlightedIndex(&highlighted_count));
 175   EXPECT_EQ(1, highlighted_count);
 176
 177   event_generator()->ReleaseLeftButton();
 178   EXPECT_EQ(1, GetLastPressedIndexAndReset());
 179 }
 180
 181 }  // namespace ime
 182 }  // namespace ui