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| 1 // Copyright (c) 2011 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/controls/single_split_view.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "testing/gtest/include/gtest/gtest.h" | |
| 9 #include "ui/views/controls/single_split_view_listener.h" | |
| 10 | |
| 11 namespace { | |
| 12 | |
| 13 static void VerifySplitViewLayout(const views::SingleSplitView& split) { | |
| 14 ASSERT_EQ(2, split.child_count()); | |
| 15 | |
| 16 const views::View* leading = split.child_at(0); | |
| 17 const views::View* trailing = split.child_at(1); | |
| 18 | |
| 19 if (split.bounds().IsEmpty()) { | |
| 20 EXPECT_TRUE(leading->bounds().IsEmpty()); | |
| 21 EXPECT_TRUE(trailing->bounds().IsEmpty()); | |
| 22 return; | |
| 23 } | |
| 24 | |
| 25 EXPECT_FALSE(leading->bounds().IsEmpty()); | |
| 26 EXPECT_FALSE(trailing->bounds().IsEmpty()); | |
| 27 EXPECT_FALSE(leading->bounds().Intersects(trailing->bounds())); | |
| 28 | |
| 29 if (split.orientation() == views::SingleSplitView::HORIZONTAL_SPLIT) { | |
| 30 EXPECT_EQ(leading->bounds().height(), split.bounds().height()); | |
| 31 EXPECT_EQ(trailing->bounds().height(), split.bounds().height()); | |
| 32 EXPECT_LT(leading->bounds().width() + trailing->bounds().width(), | |
| 33 split.bounds().width()); | |
| 34 } else if (split.orientation() == views::SingleSplitView::VERTICAL_SPLIT) { | |
| 35 EXPECT_EQ(leading->bounds().width(), split.bounds().width()); | |
| 36 EXPECT_EQ(trailing->bounds().width(), split.bounds().width()); | |
| 37 EXPECT_LT(leading->bounds().height() + trailing->bounds().height(), | |
| 38 split.bounds().height()); | |
| 39 } else { | |
| 40 NOTREACHED(); | |
| 41 } | |
| 42 } | |
| 43 | |
| 44 class SingleSplitViewListenerImpl : public views::SingleSplitViewListener { | |
| 45 public: | |
| 46 SingleSplitViewListenerImpl() : count_(0) {} | |
| 47 | |
| 48 virtual bool SplitHandleMoved(views::SingleSplitView* sender) override { | |
| 49 ++count_; | |
| 50 return false; | |
| 51 } | |
| 52 | |
| 53 int count() const { return count_; } | |
| 54 | |
| 55 private: | |
| 56 int count_; | |
| 57 | |
| 58 DISALLOW_COPY_AND_ASSIGN(SingleSplitViewListenerImpl); | |
| 59 }; | |
| 60 | |
| 61 class MinimumSizedView: public views::View { | |
| 62 public: | |
| 63 MinimumSizedView(gfx::Size min_size) : min_size_(min_size) {} | |
| 64 | |
| 65 private: | |
| 66 gfx::Size min_size_; | |
| 67 virtual gfx::Size GetMinimumSize() const override; | |
| 68 }; | |
| 69 | |
| 70 gfx::Size MinimumSizedView::GetMinimumSize() const { | |
| 71 return min_size_; | |
| 72 } | |
| 73 | |
| 74 } // namespace | |
| 75 | |
| 76 namespace views { | |
| 77 | |
| 78 TEST(SingleSplitViewTest, Resize) { | |
| 79 // Test cases to iterate through for horizontal and vertical split views. | |
| 80 struct TestCase { | |
| 81 // Split view resize policy for this test case. | |
| 82 bool resize_leading_on_bounds_change; | |
| 83 // Split view size to set. | |
| 84 int primary_axis_size; | |
| 85 int secondary_axis_size; | |
| 86 // Expected divider offset. | |
| 87 int divider_offset; | |
| 88 } test_cases[] = { | |
| 89 // The initial split size is 100x100, divider at 33. | |
| 90 { true, 100, 100, 33 }, | |
| 91 // Grow the split view, leading view should grow. | |
| 92 { true, 1000, 100, 933 }, | |
| 93 // Shrink the split view, leading view should shrink. | |
| 94 { true, 200, 100, 133 }, | |
| 95 // Minimize the split view, divider should not move. | |
| 96 { true, 0, 0, 133 }, | |
| 97 // Restore the split view, divider should not move. | |
| 98 { false, 500, 100, 133 }, | |
| 99 // Resize the split view by secondary axis, divider should not move. | |
| 100 { false, 500, 600, 133 } | |
| 101 }; | |
| 102 | |
| 103 SingleSplitView::Orientation orientations[] = { | |
| 104 SingleSplitView::HORIZONTAL_SPLIT, | |
| 105 SingleSplitView::VERTICAL_SPLIT | |
| 106 }; | |
| 107 | |
| 108 for (size_t orientation = 0; orientation < arraysize(orientations); | |
| 109 ++orientation) { | |
| 110 // Create a split view. | |
| 111 SingleSplitView split( | |
| 112 new View(), new View(), orientations[orientation], NULL); | |
| 113 | |
| 114 // Set initial size and divider offset. | |
| 115 EXPECT_EQ(test_cases[0].primary_axis_size, | |
| 116 test_cases[0].secondary_axis_size); | |
| 117 split.SetBounds(0, 0, test_cases[0].primary_axis_size, | |
| 118 test_cases[0].secondary_axis_size); | |
| 119 split.set_divider_offset(test_cases[0].divider_offset); | |
| 120 split.Layout(); | |
| 121 | |
| 122 // Run all test cases. | |
| 123 for (size_t i = 0; i < arraysize(test_cases); ++i) { | |
| 124 split.set_resize_leading_on_bounds_change( | |
| 125 test_cases[i].resize_leading_on_bounds_change); | |
| 126 if (split.orientation() == SingleSplitView::HORIZONTAL_SPLIT) { | |
| 127 split.SetBounds(0, 0, test_cases[i].primary_axis_size, | |
| 128 test_cases[i].secondary_axis_size); | |
| 129 } else { | |
| 130 split.SetBounds(0, 0, test_cases[i].secondary_axis_size, | |
| 131 test_cases[i].primary_axis_size); | |
| 132 } | |
| 133 | |
| 134 EXPECT_EQ(test_cases[i].divider_offset, split.divider_offset()); | |
| 135 VerifySplitViewLayout(split); | |
| 136 } | |
| 137 | |
| 138 // Special cases, one of the child views is hidden. | |
| 139 split.child_at(0)->SetVisible(false); | |
| 140 split.Layout(); | |
| 141 | |
| 142 EXPECT_EQ(split.size(), split.child_at(1)->size()); | |
| 143 | |
| 144 split.child_at(0)->SetVisible(true); | |
| 145 split.child_at(1)->SetVisible(false); | |
| 146 split.Layout(); | |
| 147 | |
| 148 EXPECT_EQ(split.size(), split.child_at(0)->size()); | |
| 149 } | |
| 150 } | |
| 151 | |
| 152 TEST(SingleSplitViewTest, MouseDrag) { | |
| 153 const int kMinimumChildSize = 25; | |
| 154 MinimumSizedView *child0 = | |
| 155 new MinimumSizedView(gfx::Size(5, kMinimumChildSize)); | |
| 156 MinimumSizedView *child1 = | |
| 157 new MinimumSizedView(gfx::Size(5, kMinimumChildSize)); | |
| 158 SingleSplitViewListenerImpl listener; | |
| 159 SingleSplitView split( | |
| 160 child0, child1, SingleSplitView::VERTICAL_SPLIT, &listener); | |
| 161 | |
| 162 const int kTotalSplitSize = 100; | |
| 163 split.SetBounds(0, 0, 10, kTotalSplitSize); | |
| 164 const int kInitialDividerOffset = 33; | |
| 165 const int kMouseOffset = 2; // Mouse offset in the divider. | |
| 166 const int kMouseMoveDelta = 7; | |
| 167 split.set_divider_offset(kInitialDividerOffset); | |
| 168 split.Layout(); | |
| 169 | |
| 170 gfx::Point press_point(7, kInitialDividerOffset + kMouseOffset); | |
| 171 ui::MouseEvent mouse_pressed( | |
| 172 ui::ET_MOUSE_PRESSED, press_point, press_point, 0, 0); | |
| 173 ASSERT_TRUE(split.OnMousePressed(mouse_pressed)); | |
| 174 EXPECT_EQ(kInitialDividerOffset, split.divider_offset()); | |
| 175 EXPECT_EQ(0, listener.count()); | |
| 176 | |
| 177 // Drag divider to the bottom. | |
| 178 gfx::Point drag_1_point( | |
| 179 5, kInitialDividerOffset + kMouseOffset + kMouseMoveDelta); | |
| 180 ui::MouseEvent mouse_dragged_1( | |
| 181 ui::ET_MOUSE_DRAGGED, drag_1_point, drag_1_point, 0, 0); | |
| 182 ASSERT_TRUE(split.OnMouseDragged(mouse_dragged_1)); | |
| 183 EXPECT_EQ(kInitialDividerOffset + kMouseMoveDelta, split.divider_offset()); | |
| 184 EXPECT_EQ(1, listener.count()); | |
| 185 | |
| 186 // Drag divider to the top, beyond first child minimum size. | |
| 187 gfx::Point drag_2_point( | |
| 188 7, kMinimumChildSize - 5); | |
| 189 ui::MouseEvent mouse_dragged_2( | |
| 190 ui::ET_MOUSE_DRAGGED, drag_2_point, drag_2_point, 0,0 ); | |
| 191 ASSERT_TRUE(split.OnMouseDragged(mouse_dragged_2)); | |
| 192 EXPECT_EQ(kMinimumChildSize, split.divider_offset()); | |
| 193 EXPECT_EQ(2, listener.count()); | |
| 194 | |
| 195 // Drag divider to the bottom, beyond second child minimum size. | |
| 196 gfx::Point drag_3_point( | |
| 197 7, kTotalSplitSize - kMinimumChildSize + 5); | |
| 198 ui::MouseEvent mouse_dragged_3( | |
| 199 ui::ET_MOUSE_DRAGGED, drag_3_point, drag_3_point, 0, 0); | |
| 200 ASSERT_TRUE(split.OnMouseDragged(mouse_dragged_3)); | |
| 201 EXPECT_EQ(kTotalSplitSize - kMinimumChildSize - split.GetDividerSize(), | |
| 202 split.divider_offset()); | |
| 203 EXPECT_EQ(3, listener.count()); | |
| 204 | |
| 205 // Drag divider between childs' minimum sizes. | |
| 206 gfx::Point drag_4_point( | |
| 207 6, kInitialDividerOffset + kMouseOffset + kMouseMoveDelta * 2); | |
| 208 ui::MouseEvent mouse_dragged_4( | |
| 209 ui::ET_MOUSE_DRAGGED, drag_4_point, drag_4_point, 0, 0); | |
| 210 ASSERT_TRUE(split.OnMouseDragged(mouse_dragged_4)); | |
| 211 EXPECT_EQ(kInitialDividerOffset + kMouseMoveDelta * 2, | |
| 212 split.divider_offset()); | |
| 213 EXPECT_EQ(4, listener.count()); | |
| 214 | |
| 215 gfx::Point release_point( | |
| 216 7, kInitialDividerOffset + kMouseOffset + kMouseMoveDelta * 2); | |
| 217 ui::MouseEvent mouse_released( | |
| 218 ui::ET_MOUSE_RELEASED, release_point, release_point, 0, 0); | |
| 219 split.OnMouseReleased(mouse_released); | |
| 220 EXPECT_EQ(kInitialDividerOffset + kMouseMoveDelta * 2, | |
| 221 split.divider_offset()); | |
| 222 | |
| 223 // Expect intial offset after a system/user gesture cancels the drag. | |
| 224 // This shouldn't occur after mouse release, but it's sufficient for testing. | |
| 225 split.OnMouseCaptureLost(); | |
| 226 EXPECT_EQ(kInitialDividerOffset, split.divider_offset()); | |
| 227 EXPECT_EQ(5, listener.count()); | |
| 228 } | |
| 229 | |
| 230 } // namespace views | |
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