src/ui/views/corewm/window_util_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/views/corewm/window_util.h"
   6
   7 #include "ui/aura/root_window.h"
   8 #include "ui/aura/test/aura_test_base.h"
   9 #include "ui/aura/window.h"
  10 #include "ui/compositor/test/test_layers.h"
  11 #include "ui/views/view_constants_aura.h"
  12 #include "ui/views/widget/widget.h"
  13
  14 class WindowUtilTest : public aura::test::AuraTestBase {
  15  public:
  16   WindowUtilTest() {
  17   }
  18
  19   virtual ~WindowUtilTest() {
  20   }
  21
  22   // Creates a widget of TYPE_CONTROL.
  23   // The caller takes ownership of the returned widget.
  24   views::Widget* CreateControlWidget(
  25       aura::Window* parent,
  26       const gfx::Rect& bounds) const WARN_UNUSED_RESULT {
  27     views::Widget::InitParams params(views::Widget::InitParams::TYPE_CONTROL);
  28     params.parent = parent;
  29     params.bounds = bounds;
  30     views::Widget* widget = new views::Widget();
  31     widget->Init(params);
  32     return widget;
  33   }
  34
  35   // Returns a view with a layer with the passed in |bounds| and |layer_name|.
  36   // The caller takes ownership of the returned view.
  37   views::View* CreateViewWithLayer(
  38       const gfx::Rect& bounds,
  39       const char* layer_name) const WARN_UNUSED_RESULT {
  40     views::View* view = new views::View();
  41     view->SetBoundsRect(bounds);
  42     view->SetPaintToLayer(true);
  43     view->layer()->set_name(layer_name);
  44     return view;
  45   }
  46
  47  private:
  48   DISALLOW_COPY_AND_ASSIGN(WindowUtilTest);
  49 };
  50
  51 // Test that RecreateWindowLayers() recreates the layers for all child windows
  52 // and all child views and that the z-order of the recreated layers matches that
  53 // of the original layers.
  54 // Test hierarchy:
  55 // w1
  56 // +-- v1
  57 // +-- v2 (no layer)
  58 //     +-- v3 (no layer)
  59 //     +-- v4
  60 // +-- w2
  61 //     +-- v5
  62 //         +-- v6
  63 // +-- v7
  64 TEST_F(WindowUtilTest, RecreateWindowLayers) {
  65   views::Widget* w1 = CreateControlWidget(root_window(),
  66                                           gfx::Rect(0, 0, 100, 100));
  67   w1->GetNativeView()->layer()->set_name("w1");
  68
  69   views::View* v2 = new views::View();
  70   v2->SetBounds(0, 1, 100, 101);
  71   views::View* v3 = new views::View();
  72   v3->SetBounds(0, 2, 100, 102);
  73   views::View* w2_host_view = new views::View();
  74
  75   w1->GetRootView()->AddChildView(CreateViewWithLayer(
  76       gfx::Rect(0, 3, 100, 103), "v1"));
  77   w1->GetRootView()->AddChildView(v2);
  78   v2->AddChildView(v3);
  79   v2->AddChildView(CreateViewWithLayer(gfx::Rect(0, 4, 100, 104), "v4"));
  80
  81   w1->GetRootView()->AddChildView(w2_host_view);
  82   w1->GetRootView()->AddChildView(CreateViewWithLayer(
  83       gfx::Rect(0, 4, 100, 104), "v7"));
  84
  85   views::Widget* w2 = CreateControlWidget(w1->GetNativeView(),
  86                                           gfx::Rect(0, 5, 100, 105));
  87   w2->GetNativeView()->layer()->set_name("w2");
  88   w2->GetNativeView()->SetProperty(views::kHostViewKey, w2_host_view);
  89
  90   views::View* v5 = CreateViewWithLayer(gfx::Rect(0, 6, 100, 106), "v5");
  91   w2->GetRootView()->AddChildView(v5);
  92   v5->AddChildView(CreateViewWithLayer(gfx::Rect(0, 7, 100, 107), "v6"));
  93
  94   // Test the initial order of the layers.
  95   ui::Layer* w1_layer = w1->GetNativeView()->layer();
  96   ASSERT_EQ("w1", w1_layer->name());
  97   ASSERT_EQ("v1 v4 w2 v7", ui::test::ChildLayerNamesAsString(*w1_layer));
  98   ui::Layer* w2_layer = w1_layer->children()[2];
  99   ASSERT_EQ("v5", ui::test::ChildLayerNamesAsString(*w2_layer));
 100   ui::Layer* v5_layer = w2_layer->children()[0];
 101   ASSERT_EQ("v6", ui::test::ChildLayerNamesAsString(*v5_layer));
 102
 103   w1_layer = views::corewm::RecreateWindowLayers(w1->GetNativeView(), false);
 104
 105   // The order of the layers returned by RecreateWindowLayers() should match the
 106   // order of the layers prior to calling RecreateWindowLayers().
 107   ASSERT_EQ("w1", w1_layer->name());
 108   ASSERT_EQ("v1 v4 w2 v7", ui::test::ChildLayerNamesAsString(*w1_layer));
 109   w2_layer = w1_layer->children()[2];
 110   ASSERT_EQ("v5", ui::test::ChildLayerNamesAsString(*w2_layer));
 111   v5_layer = w2_layer->children()[0];
 112   ASSERT_EQ("v6", ui::test::ChildLayerNamesAsString(*v5_layer));
 113
 114   views::corewm::DeepDeleteLayers(w1_layer);
 115   // The views and the widgets are destroyed when AuraTestHelper::TearDown()
 116   // destroys root_window().
 117 }