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