src/ui/views/widget/window_reorderer_unittest.cc

   1 // Copyright 2013 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/aura/root_window.h"
   6 #include "ui/aura/test/aura_test_base.h"
   7 #include "ui/aura/test/test_windows.h"
   8 #include "ui/aura/window.h"
   9 #include "ui/compositor/layer.h"
  10 #include "ui/compositor/test/test_layers.h"
  11 #include "ui/views/view.h"
  12 #include "ui/views/view_constants_aura.h"
  13 #include "ui/views/widget/widget.h"
  14
  15 namespace views {
  16 namespace {
  17
  18 // Creates a control widget with the passed in parameters.
  19 // The caller takes ownership of the returned widget.
  20 Widget* CreateControlWidget(aura::Window* parent, const gfx::Rect& bounds) {
  21   Widget::InitParams params(Widget::InitParams::TYPE_CONTROL);
  22   params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
  23   params.parent = parent;
  24   params.bounds = bounds;
  25   Widget* widget = new Widget();
  26   widget->Init(params);
  27   return widget;
  28 }
  29
  30 // Sets the name of |window| and |window|'s layer to |name|.
  31 void SetWindowAndLayerName(aura::Window* window, const std::string& name) {
  32   window->SetName(name);
  33   window->layer()->set_name(name);
  34 }
  35
  36 // Returns a string containing the name of each of the child windows (bottommost
  37 // first) of |parent|. The format of the string is "name1 name2 name3 ...".
  38 std::string ChildWindowNamesAsString(const aura::Window& parent) {
  39   std::string names;
  40   typedef std::vector<aura::Window*> Windows;
  41   for (Windows::const_iterator it = parent.children().begin();
  42        it != parent.children().end(); ++it) {
  43     if (!names.empty())
  44       names += " ";
  45     names += (*it)->name();
  46   }
  47   return names;
  48 }
  49
  50 typedef aura::test::AuraTestBase WindowReordererTest;
  51
  52 // Test that views with layers and views with associated windows are reordered
  53 // according to the view hierarchy.
  54 TEST_F(WindowReordererTest, Basic) {
  55   scoped_ptr<Widget> parent(CreateControlWidget(root_window(),
  56                                                 gfx::Rect(0, 0, 100, 100)));
  57   parent->Show();
  58   aura::Window* parent_window = parent->GetNativeWindow();
  59
  60   View* contents_view = new View();
  61   parent->SetContentsView(contents_view);
  62
  63   // 1) Test that layers for views and layers for windows associated to a host
  64   // view are stacked below the layers for any windows not associated to a host
  65   // view.
  66   View* v = new View();
  67   v->SetPaintToLayer(true);
  68   v->layer()->set_name("v");
  69   contents_view->AddChildView(v);
  70
  71   scoped_ptr<Widget> w1(CreateControlWidget(parent_window,
  72                                             gfx::Rect(0, 1, 100, 101)));
  73   SetWindowAndLayerName(w1->GetNativeView(), "w1");
  74   w1->Show();
  75   scoped_ptr<Widget> w2(CreateControlWidget(parent_window,
  76                                             gfx::Rect(0, 2, 100, 102)));
  77   SetWindowAndLayerName(w2->GetNativeView(), "w2");
  78   w2->Show();
  79
  80   EXPECT_EQ("w1 w2", ChildWindowNamesAsString(*parent_window));
  81   EXPECT_EQ("v w1 w2",
  82             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
  83
  84   View* host_view2 = new View();
  85   contents_view->AddChildView(host_view2);
  86   w2->GetNativeView()->SetProperty(kHostViewKey, host_view2);
  87   EXPECT_EQ("w2 w1", ChildWindowNamesAsString(*parent_window));
  88   EXPECT_EQ("v w2 w1",
  89             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
  90
  91   View* host_view1 = new View();
  92   w1->GetNativeView()->SetProperty(kHostViewKey, host_view1);
  93   contents_view->AddChildViewAt(host_view1, 0);
  94   EXPECT_EQ("w1 w2", ChildWindowNamesAsString(*parent_window));
  95   EXPECT_EQ("w1 v w2",
  96             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
  97
  98   // 2) Test the z-order of the windows and layers as a result of reordering the
  99   // views.
 100   contents_view->ReorderChildView(host_view1, -1);
 101   EXPECT_EQ("w2 w1", ChildWindowNamesAsString(*parent_window));
 102   EXPECT_EQ("v w2 w1",
 103             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
 104
 105   contents_view->ReorderChildView(host_view2, -1);
 106   EXPECT_EQ("w1 w2", ChildWindowNamesAsString(*parent_window));
 107   EXPECT_EQ("v w1 w2",
 108             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
 109
 110   // 3) Test the z-order of the windows and layers as a result of reordering the
 111   // views in situations where the window order remains unchanged.
 112   contents_view->ReorderChildView(v, -1);
 113   EXPECT_EQ("w1 w2", ChildWindowNamesAsString(*parent_window));
 114   EXPECT_EQ("w1 w2 v",
 115             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
 116
 117   contents_view->ReorderChildView(host_view2, -1);
 118   EXPECT_EQ("w1 w2", ChildWindowNamesAsString(*parent_window));
 119   EXPECT_EQ("w1 v w2",
 120             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
 121
 122   // Work around for bug in NativeWidgetAura.
 123   // TODO: fix bug and remove this.
 124   parent->Close();
 125 }
 126
 127 // Test that different orderings of:
 128 // - adding a window to a parent widget
 129 // - adding a "host" view to a parent widget
 130 // - associating the "host" view and window
 131 // all correctly reorder the child windows and layers.
 132 TEST_F(WindowReordererTest, Association) {
 133   scoped_ptr<Widget> parent(CreateControlWidget(root_window(),
 134                                                 gfx::Rect(0, 0, 100, 100)));
 135   parent->Show();
 136   aura::Window* parent_window = parent->GetNativeWindow();
 137
 138   View* contents_view = new View();
 139   parent->SetContentsView(contents_view);
 140
 141   aura::Window* w1 = aura::test::CreateTestWindowWithId(0,
 142       parent->GetNativeWindow());
 143   SetWindowAndLayerName(w1, "w1");
 144
 145   aura::Window* w2 = aura::test::CreateTestWindowWithId(0, NULL);
 146   SetWindowAndLayerName(w2, "w2");
 147
 148   View* host_view2 = new View();
 149
 150   // 1) Test that parenting the window to the parent widget last results in a
 151   //    correct ordering of child windows and layers.
 152   contents_view->AddChildView(host_view2);
 153   w2->SetProperty(views::kHostViewKey, host_view2);
 154   EXPECT_EQ("w1", ChildWindowNamesAsString(*parent_window));
 155   EXPECT_EQ("w1",
 156             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
 157
 158   parent_window->AddChild(w2);
 159   EXPECT_EQ("w2 w1", ChildWindowNamesAsString(*parent_window));
 160   EXPECT_EQ("w2 w1",
 161             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
 162
 163   // 2) Test that associating the window and "host" view last results in a
 164   // correct ordering of child windows and layers.
 165   View* host_view1 = new View();
 166   contents_view->AddChildViewAt(host_view1, 0);
 167   EXPECT_EQ("w2 w1", ChildWindowNamesAsString(*parent_window));
 168   EXPECT_EQ("w2 w1",
 169             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
 170
 171   w1->SetProperty(views::kHostViewKey, host_view1);
 172   EXPECT_EQ("w1 w2", ChildWindowNamesAsString(*parent_window));
 173   EXPECT_EQ("w1 w2",
 174             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
 175
 176   // 3) Test that parenting the "host" view to the parent widget last results
 177   // in a correct ordering of child windows and layers.
 178   contents_view->RemoveChildView(host_view2);
 179   contents_view->AddChildViewAt(host_view2, 0);
 180   EXPECT_EQ("w2 w1", ChildWindowNamesAsString(*parent_window));
 181   EXPECT_EQ("w2 w1",
 182             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
 183
 184   // Work around for bug in NativeWidgetAura.
 185   // TODO: fix bug and remove this.
 186   parent->Close();
 187 }
 188
 189 // It is possible to associate a window to a view which has a parent layer
 190 // (other than the widget layer). In this case, the parent layer of the host
 191 // view and the parent layer of the associated window are different. Test that
 192 // the layers and windows are properly reordered in this case.
 193 TEST_F(WindowReordererTest, HostViewParentHasLayer) {
 194   scoped_ptr<Widget> parent(CreateControlWidget(root_window(),
 195                                                 gfx::Rect(0, 0, 100, 100)));
 196   parent->Show();
 197   aura::Window* parent_window = parent->GetNativeWindow();
 198
 199   View* contents_view = new View();
 200   parent->SetContentsView(contents_view);
 201
 202   // Create the following view hierarchy. (*) denotes views which paint to a
 203   // layer.
 204   //
 205   // contents_view
 206   // +-- v1
 207   //     +-- v11*
 208   //     +-- v12 (attached window)
 209   //     +-- v13*
 210   // +--v2*
 211
 212   View* v1 = new View();
 213   contents_view->AddChildView(v1);
 214
 215   View* v11 = new View();
 216   v11->SetPaintToLayer(true);
 217   v11->layer()->set_name("v11");
 218   v1->AddChildView(v11);
 219
 220   scoped_ptr<Widget> w(CreateControlWidget(parent_window,
 221                                            gfx::Rect(0, 1, 100, 101)));
 222   SetWindowAndLayerName(w->GetNativeView(), "w");
 223   w->Show();
 224
 225   View* v12 = new View();
 226   v1->AddChildView(v12);
 227   w->GetNativeView()->SetProperty(kHostViewKey, v12);
 228
 229   View* v13 = new View();
 230   v13->SetPaintToLayer(true);
 231   v13->layer()->set_name("v13");
 232   v1->AddChildView(v13);
 233
 234   View* v2 = new View();
 235   v2->SetPaintToLayer(true);
 236   v2->layer()->set_name("v2");
 237   contents_view->AddChildView(v2);
 238
 239   // Test intial state.
 240   EXPECT_EQ("w", ChildWindowNamesAsString(*parent_window));
 241   EXPECT_EQ("v11 w v13 v2",
 242             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
 243
 244   // |w|'s layer should be stacked above |v1|'s layer.
 245   v1->SetPaintToLayer(true);
 246   v1->layer()->set_name("v1");
 247   EXPECT_EQ("w", ChildWindowNamesAsString(*parent_window));
 248   EXPECT_EQ("v1 w v2",
 249             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
 250
 251   // Test moving the host view from one view with a layer to another.
 252   v2->AddChildView(v12);
 253   EXPECT_EQ("w", ChildWindowNamesAsString(*parent_window));
 254   EXPECT_EQ("v1 v2 w",
 255             ui::test::ChildLayerNamesAsString(*parent_window->layer()));
 256
 257   // Work around for bug in NativeWidgetAura.
 258   // TODO: fix bug and remove this.
 259   parent->Close();
 260 }
 261
 262 }  // namespace
 263 }  // namespace views