chrome/browser/ui/ash/window_positioner_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 "ash/wm/window_positioner.h"
   6
   7 #include "ash/shell.h"
   8 #include "ash/test/ash_test_base.h"
   9 #include "ash/test/test_shell_delegate.h"
  10 #include "ash/wm/window_resizer.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/logging.h"
  13 #include "chrome/browser/ui/browser.h"
  14 #include "chrome/browser/ui/host_desktop.h"
  15 #include "chrome/test/base/test_browser_window.h"
  16 #include "chrome/test/base/testing_profile.h"
  17 #include "content/public/test/render_view_test.h"
  18 #include "testing/gtest/include/gtest/gtest.h"
  19 #include "ui/aura/env.h"
  20 #include "ui/aura/root_window.h"
  21 #include "ui/aura/test/test_windows.h"
  22 #include "ui/gfx/screen.h"
  23
  24 namespace ash {
  25 namespace test {
  26
  27 namespace {
  28
  29 // A browser window proxy which is able to associate an aura native window with
  30 // it.
  31 class TestBrowserWindowAura : public TestBrowserWindow {
  32  public:
  33   explicit TestBrowserWindowAura(aura::Window* native_window);
  34   virtual ~TestBrowserWindowAura();
  35
  36   virtual gfx::NativeWindow GetNativeWindow() OVERRIDE {
  37     return native_window_;
  38   }
  39
  40  private:
  41   gfx::NativeWindow native_window_;
  42
  43   DISALLOW_COPY_AND_ASSIGN(TestBrowserWindowAura);
  44 };
  45
  46 TestBrowserWindowAura::TestBrowserWindowAura(aura::Window *native_window)
  47     : native_window_(native_window) {
  48 }
  49
  50 TestBrowserWindowAura::~TestBrowserWindowAura() {}
  51
  52 }  // namespace
  53
  54 // A test class for preparing window positioner tests - it creates a testing
  55 // base by adding a window and a popup which can be independently
  56 // positioned to see where the positioner will place the window.
  57 class WindowPositionerTest : public AshTestBase {
  58  public:
  59   WindowPositionerTest();
  60
  61   virtual void SetUp() OVERRIDE;
  62   virtual void TearDown() OVERRIDE;
  63
  64  protected:
  65   aura::Window* window() { return window_.get(); }
  66   aura::Window* popup() { return popup_.get(); }
  67
  68   Browser* window_browser() { return window_owning_browser_.get(); }
  69   Browser* popup_browser() { return popup_owning_browser_.get(); }
  70
  71   WindowPositioner* window_positioner() { return window_positioner_; }
  72
  73   // The positioner & desktop's used grid alignment size.
  74   const int grid_size_;
  75
  76  private:
  77   WindowPositioner* window_positioner_;
  78
  79   // These two need to be deleted after everything else is gone.
  80   TestingProfile profile_;
  81
  82   // These get created for each session.
  83   scoped_ptr<aura::Window> window_;
  84   scoped_ptr<aura::Window> popup_;
  85
  86   scoped_ptr<BrowserWindow> browser_window_;
  87   scoped_ptr<BrowserWindow> browser_popup_;
  88
  89   scoped_ptr<Browser> window_owning_browser_;
  90   scoped_ptr<Browser> popup_owning_browser_;
  91
  92   DISALLOW_COPY_AND_ASSIGN(WindowPositionerTest);
  93 };
  94
  95 WindowPositionerTest::WindowPositionerTest()
  96     : grid_size_(WindowPositioner::kMinimumWindowOffset),
  97       window_positioner_(NULL) {
  98 }
  99
 100 void WindowPositionerTest::SetUp() {
 101   AshTestBase::SetUp();
 102   // Create some default dummy windows.
 103   window_.reset(CreateTestWindowInShellWithId(0));
 104   window_->SetBounds(gfx::Rect(16, 32, 640, 320));
 105   popup_.reset(CreateTestWindowInShellWithId(1));
 106   popup_->SetBounds(gfx::Rect(16, 32, 128, 256));
 107
 108   // Create a browser for the window.
 109   browser_window_.reset(new TestBrowserWindowAura(window_.get()));
 110   Browser::CreateParams window_params(&profile_,
 111                                       chrome::HOST_DESKTOP_TYPE_ASH);
 112   window_params.window = browser_window_.get();
 113   window_owning_browser_.reset(new Browser(window_params));
 114
 115   // Creating a browser for the popup.
 116   browser_popup_.reset(new TestBrowserWindowAura(popup_.get()));
 117   Browser::CreateParams popup_params(Browser::TYPE_POPUP, &profile_,
 118                                      chrome::HOST_DESKTOP_TYPE_ASH);
 119   popup_params.window = browser_popup_.get();
 120   popup_owning_browser_.reset(new Browser(popup_params));
 121
 122   // We hide all windows upon start - each user is required to set it up
 123   // as he needs it.
 124   window()->Hide();
 125   popup()->Hide();
 126   window_positioner_ = new WindowPositioner();
 127 }
 128
 129 void WindowPositionerTest::TearDown() {
 130   // Since the AuraTestBase is needed to create our assets, we have to
 131   // also delete them before we tear it down.
 132   window_owning_browser_.reset(NULL);
 133   popup_owning_browser_.reset(NULL);
 134
 135   browser_window_.reset(NULL);
 136   browser_popup_.reset(NULL);
 137
 138   window_.reset(NULL);
 139   popup_.reset(NULL);
 140
 141   AshTestBase::TearDown();
 142   delete window_positioner_;
 143   window_positioner_ = NULL;
 144 }
 145
 146 int AlignToGridRoundDown(int location, int grid_size) {
 147   if (grid_size <= 1 || location % grid_size == 0)
 148     return location;
 149   return location / grid_size * grid_size;
 150 }
 151
 152 TEST_F(WindowPositionerTest, cascading) {
 153   const gfx::Rect work_area =
 154       Shell::GetScreen()->GetPrimaryDisplay().work_area();
 155
 156   // First see that the window will cascade down when there is no space.
 157   window()->SetBounds(work_area);
 158   window()->Show();
 159
 160   gfx::Rect popup_position(0, 0, 200, 200);
 161   // Check that it gets cascaded.
 162   gfx::Rect cascade_1 = window_positioner()->GetPopupPosition(popup_position);
 163   EXPECT_EQ(gfx::Rect(work_area.x() + grid_size_, work_area.y() + grid_size_,
 164                       popup_position.width(), popup_position.height()),
 165                       cascade_1);
 166
 167   gfx::Rect cascade_2 = window_positioner()->GetPopupPosition(popup_position);
 168   EXPECT_EQ(gfx::Rect(work_area.x() + 2 * grid_size_,
 169                       work_area.y() + 2 * grid_size_,
 170                       popup_position.width(), popup_position.height()),
 171                       cascade_2);
 172
 173   // Check that if there is even only a pixel missing it will cascade.
 174   window()->SetBounds(gfx::Rect(work_area.x() + popup_position.width() - 1,
 175                                 work_area.y() + popup_position.height() - 1,
 176                                 work_area.width() -
 177                                     2 * (popup_position.width() - 1),
 178                                 work_area.height() -
 179                                     2 * (popup_position.height() - 1)));
 180
 181   gfx::Rect cascade_3 = window_positioner()->GetPopupPosition(popup_position);
 182   EXPECT_EQ(gfx::Rect(work_area.x() + 3 * grid_size_,
 183                       work_area.y() + 3 * grid_size_,
 184                       popup_position.width(), popup_position.height()),
 185                       cascade_3);
 186
 187   // Check that we overflow into the next line when we do not fit anymore in Y.
 188   gfx::Rect popup_position_4(0, 0, 200,
 189                              work_area.height() -
 190                                  (cascade_3.y() - work_area.y()));
 191   gfx::Rect cascade_4 =
 192       window_positioner()->GetPopupPosition(popup_position_4);
 193   EXPECT_EQ(gfx::Rect(work_area.x() + 2 * grid_size_,
 194                       work_area.y() + grid_size_,
 195                       popup_position_4.width(), popup_position_4.height()),
 196                       cascade_4);
 197
 198   // Check that we overflow back to the first possible location if we overflow
 199   // to the end.
 200   gfx::Rect popup_position_5(0, 0,
 201                             work_area.width() + 1 -
 202                                 (cascade_4.x() - work_area.x()),
 203                             work_area.height() -
 204                                 (2 * grid_size_ - work_area.y()));
 205   gfx::Rect cascade_5 =
 206       window_positioner()->GetPopupPosition(popup_position_5);
 207   EXPECT_EQ(gfx::Rect(work_area.x() + grid_size_,
 208                       work_area.y() + grid_size_,
 209                       popup_position_5.width(), popup_position_5.height()),
 210                       cascade_5);
 211 }
 212
 213 TEST_F(WindowPositionerTest, filling) {
 214   const gfx::Rect work_area =
 215       Shell::GetScreen()->GetPrimaryDisplay().work_area();
 216   gfx::Rect popup_position(0, 0, 256, 128);
 217   // Leave space on the left and the right and see if we fill top to bottom.
 218   window()->SetBounds(gfx::Rect(work_area.x() + popup_position.width(),
 219                                 work_area.y(),
 220                                 work_area.width() - 2 * popup_position.width(),
 221                                 work_area.height()));
 222   window()->Show();
 223   // Check that we are positioned in the top left corner.
 224   gfx::Rect top_left = window_positioner()->GetPopupPosition(popup_position);
 225   EXPECT_EQ(gfx::Rect(work_area.x(), work_area.y(),
 226                       popup_position.width(), popup_position.height()),
 227                       top_left);
 228
 229   // Now block the found location.
 230   popup()->SetBounds(top_left);
 231   popup()->Show();
 232   gfx::Rect mid_left = window_positioner()->GetPopupPosition(popup_position);
 233   EXPECT_EQ(gfx::Rect(work_area.x(),
 234                       AlignToGridRoundDown(
 235                           work_area.y() + top_left.height(), grid_size_),
 236                           popup_position.width(), popup_position.height()),
 237                       mid_left);
 238
 239   // Block now everything so that we can only put the popup on the bottom
 240   // of the left side.
 241   // Note: We need to keep one "grid spacing free" if the window does not
 242   // fit into the grid (which is true for 200 height).`
 243   popup()->SetBounds(gfx::Rect(work_area.x(), work_area.y(),
 244                                popup_position.width(),
 245                                work_area.height() - popup_position.height() -
 246                                    grid_size_ + 1));
 247   gfx::Rect bottom_left = window_positioner()->GetPopupPosition(
 248                               popup_position);
 249   EXPECT_EQ(gfx::Rect(work_area.x(),
 250                       work_area.bottom() - popup_position.height(),
 251                       popup_position.width(), popup_position.height()),
 252                       bottom_left);
 253
 254   // Block now enough to force the right side.
 255   popup()->SetBounds(gfx::Rect(work_area.x(), work_area.y(),
 256                                popup_position.width(),
 257                                work_area.height() - popup_position.height() +
 258                                1));
 259   gfx::Rect top_right = window_positioner()->GetPopupPosition(
 260                             popup_position);
 261   EXPECT_EQ(gfx::Rect(AlignToGridRoundDown(work_area.right() -
 262                                            popup_position.width(), grid_size_),
 263                       work_area.y(),
 264                       popup_position.width(), popup_position.height()),
 265                       top_right);
 266 }
 267
 268 TEST_F(WindowPositionerTest, biggerThenBorder) {
 269   const gfx::Rect work_area =
 270       Shell::GetScreen()->GetPrimaryDisplay().work_area();
 271
 272   gfx::Rect pop_position(0, 0, work_area.width(), work_area.height());
 273
 274   // Check that the popup is placed full screen.
 275   gfx::Rect full = window_positioner()->GetPopupPosition(pop_position);
 276   EXPECT_EQ(gfx::Rect(work_area.x(), work_area.y(),
 277                       pop_position.width(), pop_position.height()),
 278                       full);
 279 }
 280
 281 }  // namespace test
 282 }  // namespace ash