athena/util/drag_handle_unittest.cc

   1 // Copyright 2014 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 "athena/util/drag_handle.h"
   6
   7 #include "ui/aura/test/aura_test_base.h"
   8 #include "ui/aura/window.h"
   9 #include "ui/views/view.h"
  10 #include "ui/views/widget/widget.h"
  11
  12 namespace athena {
  13
  14 class DragHandleDelegateTest : public DragHandleScrollDelegate {
  15  public:
  16   explicit DragHandleDelegateTest()
  17       : begin_delta_(0),
  18         got_scroll_end_(false),
  19         update_delta_(0) {}
  20
  21   virtual ~DragHandleDelegateTest() {}
  22
  23   void Reset() {
  24     begin_delta_ = 0;
  25     got_scroll_end_ = false;
  26     update_delta_ = 0;
  27   }
  28
  29   float begin_delta() { return begin_delta_; }
  30   bool got_scroll_end() { return got_scroll_end_; }
  31   float update_delta() { return update_delta_; }
  32
  33  private:
  34   // DragHandleScrollDelegate:
  35   virtual void HandleScrollBegin(float delta) OVERRIDE {
  36     begin_delta_ = delta;
  37   }
  38
  39   virtual void HandleScrollEnd() OVERRIDE {
  40     got_scroll_end_ = true;
  41   }
  42
  43   virtual void HandleScrollUpdate(float delta) OVERRIDE {
  44     update_delta_ = delta;
  45   }
  46
  47   float begin_delta_;
  48   bool got_scroll_end_;
  49   float update_delta_;
  50
  51   DISALLOW_COPY_AND_ASSIGN(DragHandleDelegateTest);
  52 };
  53
  54 typedef aura::test::AuraTestBase DragHandleTest;
  55
  56 const int kDragHandleWidth = 10;
  57 const int kDragHandleHeight = 100;
  58
  59 ui::GestureEvent CreateGestureEvent(ui::EventType type,
  60                                     float x,
  61                                     float delta_x) {
  62   ui::GestureEvent event(
  63       x,
  64       1,
  65       0,
  66       base::TimeDelta::FromInternalValue(base::Time::Now().ToInternalValue()),
  67       ui::GestureEventDetails(type, delta_x, 0));
  68   event.set_root_location(gfx::PointF(x, 1));
  69   return event;
  70 }
  71
  72 TEST_F(DragHandleTest, ScrollTest) {
  73   DragHandleDelegateTest delegate;
  74   scoped_ptr<views::View> drag_handle(
  75       CreateDragHandleView(DragHandleScrollDirection::DRAG_HANDLE_HORIZONTAL,
  76                            &delegate,
  77                            kDragHandleWidth,
  78                            kDragHandleHeight));
  79
  80   views::Widget widget;
  81   views::Widget::InitParams params(
  82       views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
  83   params.parent = root_window();
  84   params.accept_events = true;
  85   params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
  86   widget.Init(params);
  87   widget.SetContentsView(drag_handle.get());
  88   const gfx::Size& size = gfx::Size(kDragHandleWidth, kDragHandleHeight);
  89   widget.SetSize(size);
  90   widget.SetBounds(gfx::Rect(0, 0, size.width(), size.height()));
  91
  92   const float begin_x = 4.0;
  93   const float begin_delta = 10.0;
  94   const float update_delta = 15.0;
  95
  96   ui::GestureEvent scroll_begin_model =
  97       CreateGestureEvent(ui::ET_GESTURE_SCROLL_BEGIN, begin_x, begin_delta);
  98   ui::GestureEvent scroll_update_model =
  99       CreateGestureEvent(ui::ET_GESTURE_SCROLL_UPDATE,
 100                          begin_x + update_delta,
 101                          update_delta - begin_delta);
 102   ui::GestureEvent scroll_end_model =
 103       CreateGestureEvent(ui::ET_GESTURE_SCROLL_END, begin_x + update_delta, 0);
 104   ui::GestureEvent fling_start_model =
 105       CreateGestureEvent(ui::ET_SCROLL_FLING_START, begin_x + update_delta, 0);
 106
 107   // Normal scroll
 108   ui::GestureEvent e(scroll_begin_model);
 109   widget.OnGestureEvent(&e);
 110   EXPECT_EQ(begin_delta, delegate.begin_delta());
 111   EXPECT_EQ(0, delegate.update_delta());
 112   EXPECT_FALSE(delegate.got_scroll_end());
 113   e = ui::GestureEvent(scroll_update_model);
 114   widget.OnGestureEvent(&e);
 115   EXPECT_EQ(update_delta, delegate.update_delta());
 116   EXPECT_FALSE(delegate.got_scroll_end());
 117   e = ui::GestureEvent(scroll_end_model);
 118   widget.OnGestureEvent(&e);
 119   EXPECT_EQ(update_delta, delegate.update_delta());
 120   EXPECT_TRUE(delegate.got_scroll_end());
 121
 122   delegate.Reset();
 123
 124   // Scroll ending with a fling
 125   e = ui::GestureEvent(scroll_begin_model);
 126   widget.OnGestureEvent(&e);
 127   e = ui::GestureEvent(scroll_update_model);
 128   widget.OnGestureEvent(&e);
 129   e = ui::GestureEvent(fling_start_model);
 130   widget.OnGestureEvent(&e);
 131   EXPECT_TRUE(delegate.got_scroll_end());
 132
 133   delegate.Reset();
 134
 135   drag_handle.reset();
 136 }
 137
 138 }  // namespace athena