tab_unittest.cc revision f8ee788a64d60abd8f2d742a5fdedde054ecd910 
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 "chrome/browser/ui/views/tabs/tab.h"
6
7#include "base/strings/utf_string_conversions.h"
8#include "chrome/browser/ui/views/tabs/tab_controller.h"
9#include "testing/gtest/include/gtest/gtest.h"
10#include "ui/base/models/list_selection_model.h"
11#include "ui/views/controls/button/image_button.h"
12#include "ui/views/controls/label.h"
13#include "ui/views/test/views_test_base.h"
14#include "ui/views/widget/widget.h"
15
16using views::Widget;
17
18class FakeTabController : public TabController {
19 public:
20  FakeTabController() : immersive_style_(false), active_tab_(false) {
21  }
22  virtual ~FakeTabController() {}
23
24  void set_immersive_style(bool value) { immersive_style_ = value; }
25  void set_active_tab(bool value) { active_tab_ = value; }
26
27  virtual const ui::ListSelectionModel& GetSelectionModel() OVERRIDE {
28    return selection_model_;
29  }
30  virtual bool SupportsMultipleSelection() OVERRIDE { return false; }
31  virtual void SelectTab(Tab* tab) OVERRIDE {}
32  virtual void ExtendSelectionTo(Tab* tab) OVERRIDE {}
33  virtual void ToggleSelected(Tab* tab) OVERRIDE {}
34  virtual void AddSelectionFromAnchorTo(Tab* tab) OVERRIDE {}
35  virtual void CloseTab(Tab* tab, CloseTabSource source) OVERRIDE {}
36  virtual void ShowContextMenuForTab(Tab* tab,
37                                     const gfx::Point& p,
38                                     ui::MenuSourceType source_type) OVERRIDE {}
39  virtual bool IsActiveTab(const Tab* tab) const OVERRIDE {
40    return active_tab_;
41  }
42  virtual bool IsTabSelected(const Tab* tab) const OVERRIDE {
43    return false;
44  }
45  virtual bool IsTabPinned(const Tab* tab) const OVERRIDE { return false; }
46  virtual void MaybeStartDrag(
47      Tab* tab,
48      const ui::LocatedEvent& event,
49      const ui::ListSelectionModel& original_selection) OVERRIDE {}
50  virtual void ContinueDrag(views::View* view,
51                            const ui::LocatedEvent& event) OVERRIDE {}
52  virtual bool EndDrag(EndDragReason reason) OVERRIDE { return false; }
53  virtual Tab* GetTabAt(Tab* tab,
54                        const gfx::Point& tab_in_tab_coordinates) OVERRIDE {
55    return NULL;
56  }
57  virtual void OnMouseEventInTab(views::View* source,
58                                 const ui::MouseEvent& event) OVERRIDE {}
59  virtual bool ShouldPaintTab(const Tab* tab, gfx::Rect* clip) OVERRIDE {
60    return true;
61  }
62  virtual bool IsImmersiveStyle() const OVERRIDE { return immersive_style_; }
63
64 private:
65  ui::ListSelectionModel selection_model_;
66  bool immersive_style_;
67  bool active_tab_;
68
69  DISALLOW_COPY_AND_ASSIGN(FakeTabController);
70};
71
72class TabTest : public views::ViewsTestBase {
73 public:
74  TabTest() {}
75  virtual ~TabTest() {}
76
77  static void DisableMediaIndicatorAnimation(Tab* tab) {
78    tab->media_indicator_animation_.reset();
79    tab->animating_media_state_ = tab->data_.media_state;
80  }
81
82  static void CheckForExpectedLayoutAndVisibilityOfElements(const Tab& tab) {
83    // Check whether elements are visible when they are supposed to be, given
84    // Tab size and TabRendererData state.
85    if (tab.data_.mini) {
86      EXPECT_EQ(1, tab.IconCapacity());
87      if (tab.data_.media_state != TAB_MEDIA_STATE_NONE) {
88        EXPECT_FALSE(tab.ShouldShowIcon());
89        EXPECT_TRUE(tab.ShouldShowMediaIndicator());
90      } else {
91        EXPECT_TRUE(tab.ShouldShowIcon());
92        EXPECT_FALSE(tab.ShouldShowMediaIndicator());
93      }
94      EXPECT_FALSE(tab.ShouldShowCloseBox());
95    } else if (tab.IsActive()) {
96      EXPECT_TRUE(tab.ShouldShowCloseBox());
97      switch (tab.IconCapacity()) {
98        case 0:
99        case 1:
100          EXPECT_FALSE(tab.ShouldShowIcon());
101          EXPECT_FALSE(tab.ShouldShowMediaIndicator());
102          break;
103        case 2:
104          if (tab.data_.media_state != TAB_MEDIA_STATE_NONE) {
105            EXPECT_FALSE(tab.ShouldShowIcon());
106            EXPECT_TRUE(tab.ShouldShowMediaIndicator());
107          } else {
108            EXPECT_TRUE(tab.ShouldShowIcon());
109            EXPECT_FALSE(tab.ShouldShowMediaIndicator());
110          }
111          break;
112        default:
113          EXPECT_LE(3, tab.IconCapacity());
114          EXPECT_TRUE(tab.ShouldShowIcon());
115          if (tab.data_.media_state != TAB_MEDIA_STATE_NONE)
116            EXPECT_TRUE(tab.ShouldShowMediaIndicator());
117          else
118            EXPECT_FALSE(tab.ShouldShowMediaIndicator());
119          break;
120      }
121    } else {  // Tab not active and not mini tab.
122      switch (tab.IconCapacity()) {
123        case 0:
124          EXPECT_FALSE(tab.ShouldShowCloseBox());
125          EXPECT_FALSE(tab.ShouldShowIcon());
126          EXPECT_FALSE(tab.ShouldShowMediaIndicator());
127          break;
128        case 1:
129          EXPECT_FALSE(tab.ShouldShowCloseBox());
130          if (tab.data_.media_state != TAB_MEDIA_STATE_NONE) {
131            EXPECT_FALSE(tab.ShouldShowIcon());
132            EXPECT_TRUE(tab.ShouldShowMediaIndicator());
133          } else {
134            EXPECT_TRUE(tab.ShouldShowIcon());
135            EXPECT_FALSE(tab.ShouldShowMediaIndicator());
136          }
137          break;
138        default:
139          EXPECT_LE(2, tab.IconCapacity());
140          EXPECT_TRUE(tab.ShouldShowIcon());
141          if (tab.data_.media_state != TAB_MEDIA_STATE_NONE)
142            EXPECT_TRUE(tab.ShouldShowMediaIndicator());
143          else
144            EXPECT_FALSE(tab.ShouldShowMediaIndicator());
145          break;
146      }
147    }
148
149    // Check positioning of elements with respect to each other, and that they
150    // are fully within the contents bounds.
151    const gfx::Rect contents_bounds = tab.GetContentsBounds();
152    if (tab.ShouldShowIcon()) {
153      EXPECT_LE(contents_bounds.x(), tab.favicon_bounds_.x());
154      if (tab.title_->width() > 0)
155        EXPECT_LE(tab.favicon_bounds_.right(), tab.title_->x());
156      EXPECT_LE(contents_bounds.y(), tab.favicon_bounds_.y());
157      EXPECT_LE(tab.favicon_bounds_.bottom(), contents_bounds.bottom());
158    }
159    if (tab.ShouldShowIcon() && tab.ShouldShowMediaIndicator())
160      EXPECT_LE(tab.favicon_bounds_.right(), tab.media_indicator_bounds_.x());
161    if (tab.ShouldShowMediaIndicator()) {
162      if (tab.title_->width() > 0) {
163        EXPECT_LE(tab.title_->bounds().right(),
164                  tab.media_indicator_bounds_.x());
165      }
166      EXPECT_LE(tab.media_indicator_bounds_.right(), contents_bounds.right());
167      EXPECT_LE(contents_bounds.y(), tab.media_indicator_bounds_.y());
168      EXPECT_LE(tab.media_indicator_bounds_.bottom(), contents_bounds.bottom());
169    }
170    if (tab.ShouldShowMediaIndicator() && tab.ShouldShowCloseBox()) {
171      // Note: The media indicator can overlap the left-insets of the close box,
172      // but should otherwise be to the left of the close button.
173      EXPECT_LE(tab.media_indicator_bounds_.right(),
174                tab.close_button_->bounds().x() +
175                    tab.close_button_->GetInsets().left());
176    }
177    if (tab.ShouldShowCloseBox()) {
178      // Note: The title bounds can overlap the left-insets of the close box,
179      // but should otherwise be to the left of the close button.
180      if (tab.title_->width() > 0) {
181        EXPECT_LE(tab.title_->bounds().right(),
182                  tab.close_button_->bounds().x() +
183                      tab.close_button_->GetInsets().left());
184      }
185      EXPECT_LE(tab.close_button_->bounds().right(), contents_bounds.right());
186      EXPECT_LE(contents_bounds.y(), tab.close_button_->bounds().y());
187      EXPECT_LE(tab.close_button_->bounds().bottom(), contents_bounds.bottom());
188    }
189  }
190};
191
192TEST_F(TabTest, HitTestTopPixel) {
193  Widget widget;
194  Widget::InitParams params(CreateParams(Widget::InitParams::TYPE_WINDOW));
195  params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
196  params.bounds.SetRect(10, 20, 300, 400);
197  widget.Init(params);
198
199  FakeTabController tab_controller;
200  Tab tab(&tab_controller);
201  widget.GetContentsView()->AddChildView(&tab);
202  tab.SetBoundsRect(gfx::Rect(gfx::Point(0, 0), Tab::GetStandardSize()));
203
204  // Tabs have some shadow in the top, so by default we don't hit the tab there.
205  int middle_x = tab.width() / 2;
206  EXPECT_FALSE(tab.HitTestPoint(gfx::Point(middle_x, 0)));
207
208  // Tabs are slanted, so a click halfway down the left edge won't hit it.
209  int middle_y = tab.height() / 2;
210  EXPECT_FALSE(tab.HitTestPoint(gfx::Point(0, middle_y)));
211
212  // If the window is maximized, however, we want clicks in the top edge to
213  // select the tab.
214  widget.Maximize();
215  EXPECT_TRUE(tab.HitTestPoint(gfx::Point(middle_x, 0)));
216
217  // But clicks in the area above the slanted sides should still miss.
218  EXPECT_FALSE(tab.HitTestPoint(gfx::Point(0, 0)));
219  EXPECT_FALSE(tab.HitTestPoint(gfx::Point(tab.width() - 1, 0)));
220}
221
222TEST_F(TabTest, LayoutAndVisibilityOfElements) {
223  static const TabMediaState kMediaStatesToTest[] = {
224    TAB_MEDIA_STATE_NONE, TAB_MEDIA_STATE_CAPTURING,
225    TAB_MEDIA_STATE_AUDIO_PLAYING
226  };
227
228  FakeTabController controller;
229  Tab tab(&controller);
230
231  SkBitmap bitmap;
232  bitmap.setConfig(SkBitmap::kARGB_8888_Config, 16, 16);
233  bitmap.allocPixels();
234  TabRendererData data;
235  data.favicon = gfx::ImageSkia::CreateFrom1xBitmap(bitmap);
236
237  // Perform layout over all possible combinations, checking for correct
238  // results.
239  for (int is_mini_tab = 0; is_mini_tab < 2; ++is_mini_tab) {
240    for (int is_active_tab = 0; is_active_tab < 2; ++is_active_tab) {
241      for (size_t media_state_index = 0;
242           media_state_index < arraysize(kMediaStatesToTest);
243           ++media_state_index) {
244        const TabMediaState media_state = kMediaStatesToTest[media_state_index];
245        SCOPED_TRACE(::testing::Message()
246                     << (is_active_tab ? "Active" : "Inactive") << ' '
247                     << (is_mini_tab ? "Mini " : "")
248                     << "Tab with media indicator state " << media_state);
249
250        data.mini = !!is_mini_tab;
251        controller.set_active_tab(!!is_active_tab);
252        data.media_state = media_state;
253        tab.SetData(data);
254
255        // Disable the media indicator animation so that the layout/visibility
256        // logic can be tested effectively.  If the animation was left enabled,
257        // the ShouldShowMediaIndicator() method would return true during
258        // fade-out transitions.
259        DisableMediaIndicatorAnimation(&tab);
260
261        // Test layout for every width from standard to minimum.
262        gfx::Rect bounds(gfx::Point(0, 0), Tab::GetStandardSize());
263        int min_width;
264        if (is_mini_tab) {
265          bounds.set_width(Tab::GetMiniWidth());
266          min_width = Tab::GetMiniWidth();
267        } else {
268          min_width = is_active_tab ? Tab::GetMinimumSelectedSize().width() :
269              Tab::GetMinimumUnselectedSize().width();
270        }
271        while (bounds.width() >= min_width) {
272          SCOPED_TRACE(::testing::Message() << "bounds=" << bounds.ToString());
273          tab.SetBoundsRect(bounds);  // Invokes Tab::Layout().
274          CheckForExpectedLayoutAndVisibilityOfElements(tab);
275          bounds.set_width(bounds.width() - 1);
276        }
277      }
278    }
279  }
280}
281
282// Regression test for http://crbug.com/226253. Calling Layout() more than once
283// shouldn't change the insets of the close button.
284TEST_F(TabTest, CloseButtonLayout) {
285  FakeTabController tab_controller;
286  Tab tab(&tab_controller);
287  tab.SetBounds(0, 0, 100, 50);
288  tab.Layout();
289  gfx::Insets close_button_insets = tab.close_button_->GetInsets();
290  tab.Layout();
291  gfx::Insets close_button_insets_2 = tab.close_button_->GetInsets();
292  EXPECT_EQ(close_button_insets.top(), close_button_insets_2.top());
293  EXPECT_EQ(close_button_insets.left(), close_button_insets_2.left());
294  EXPECT_EQ(close_button_insets.bottom(), close_button_insets_2.bottom());
295  EXPECT_EQ(close_button_insets.right(), close_button_insets_2.right());
296
297  // Also make sure the close button is sized as large as the tab.
298  EXPECT_EQ(50, tab.close_button_->bounds().height());
299}
300