diff options
Diffstat (limited to 'chromium/ui/wm/core/image_grid_unittest.cc')
| -rw-r--r-- | chromium/ui/wm/core/image_grid_unittest.cc | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/chromium/ui/wm/core/image_grid_unittest.cc b/chromium/ui/wm/core/image_grid_unittest.cc new file mode 100644 index 00000000000..4b413e44af0 --- /dev/null +++ b/chromium/ui/wm/core/image_grid_unittest.cc @@ -0,0 +1,340 @@ +// Copyright (c) 2012 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "ui/wm/core/image_grid.h" + +#include "testing/gtest/include/gtest/gtest.h" +#include "third_party/skia/include/core/SkBitmap.h" +#include "ui/aura/test/aura_test_base.h" +#include "ui/gfx/image/image.h" +#include "ui/gfx/image/image_skia.h" + +namespace wm { + +namespace { + +// Creates a gfx::Image with the requested dimensions. +gfx::Image* CreateImage(const gfx::Size& size) { + SkBitmap bitmap; + bitmap.setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.height()); + return new gfx::Image(gfx::ImageSkia::CreateFrom1xBitmap(bitmap)); +} + +} // namespace + +typedef aura::test::AuraTestBase ImageGridTest; + +// Test that an ImageGrid's layers are transformed correctly when SetSize() is +// called. +TEST_F(ImageGridTest, Basic) { + // Size of the images around the grid's border. + const int kBorder = 2; + + scoped_ptr<gfx::Image> image_1x1(CreateImage(gfx::Size(1, 1))); + scoped_ptr<gfx::Image> image_1xB(CreateImage(gfx::Size(1, kBorder))); + scoped_ptr<gfx::Image> image_Bx1(CreateImage(gfx::Size(kBorder, 1))); + scoped_ptr<gfx::Image> image_BxB(CreateImage(gfx::Size(kBorder, kBorder))); + + ImageGrid grid; + grid.SetImages(image_BxB.get(), image_1xB.get(), image_BxB.get(), + image_Bx1.get(), image_1x1.get(), image_Bx1.get(), + image_BxB.get(), image_1xB.get(), image_BxB.get()); + + ImageGrid::TestAPI test_api(&grid); + ASSERT_TRUE(grid.top_left_layer() != NULL); + ASSERT_TRUE(grid.top_layer() != NULL); + ASSERT_TRUE(grid.top_right_layer() != NULL); + ASSERT_TRUE(grid.left_layer() != NULL); + ASSERT_TRUE(grid.center_layer() != NULL); + ASSERT_TRUE(grid.right_layer() != NULL); + ASSERT_TRUE(grid.bottom_left_layer() != NULL); + ASSERT_TRUE(grid.bottom_layer() != NULL); + ASSERT_TRUE(grid.bottom_right_layer() != NULL); + + const gfx::Size size(20, 30); + grid.SetSize(size); + + // The top-left layer should be flush with the top-left corner and unscaled. + EXPECT_EQ(gfx::RectF(0, 0, kBorder, kBorder).ToString(), + test_api.GetTransformedLayerBounds( + *grid.top_left_layer()).ToString()); + + // The top layer should be flush with the top edge and stretched horizontally + // between the two top corners. + EXPECT_EQ(gfx::RectF( + kBorder, 0, size.width() - 2 * kBorder, kBorder).ToString(), + test_api.GetTransformedLayerBounds( + *grid.top_layer()).ToString()); + + // The top-right layer should be flush with the top-right corner and unscaled. + EXPECT_EQ(gfx::RectF(size.width() - kBorder, 0, kBorder, kBorder).ToString(), + test_api.GetTransformedLayerBounds( + *grid.top_right_layer()).ToString()); + + // The left layer should be flush with the left edge and stretched vertically + // between the two left corners. + EXPECT_EQ(gfx::RectF( + 0, kBorder, kBorder, size.height() - 2 * kBorder).ToString(), + test_api.GetTransformedLayerBounds( + *grid.left_layer()).ToString()); + + // The center layer should fill the space in the middle of the grid. + EXPECT_EQ(gfx::RectF( + kBorder, kBorder, size.width() - 2 * kBorder, + size.height() - 2 * kBorder).ToString(), + test_api.GetTransformedLayerBounds( + *grid.center_layer()).ToString()); + + // The right layer should be flush with the right edge and stretched + // vertically between the two right corners. + EXPECT_EQ(gfx::RectF( + size.width() - kBorder, kBorder, + kBorder, size.height() - 2 * kBorder).ToString(), + test_api.GetTransformedLayerBounds( + *grid.right_layer()).ToString()); + + // The bottom-left layer should be flush with the bottom-left corner and + // unscaled. + EXPECT_EQ(gfx::RectF(0, size.height() - kBorder, kBorder, kBorder).ToString(), + test_api.GetTransformedLayerBounds( + *grid.bottom_left_layer()).ToString()); + + // The bottom layer should be flush with the bottom edge and stretched + // horizontally between the two bottom corners. + EXPECT_EQ(gfx::RectF( + kBorder, size.height() - kBorder, + size.width() - 2 * kBorder, kBorder).ToString(), + test_api.GetTransformedLayerBounds( + *grid.bottom_layer()).ToString()); + + // The bottom-right layer should be flush with the bottom-right corner and + // unscaled. + EXPECT_EQ(gfx::RectF( + size.width() - kBorder, size.height() - kBorder, + kBorder, kBorder).ToString(), + test_api.GetTransformedLayerBounds( + *grid.bottom_right_layer()).ToString()); +} + +// Test that an ImageGrid's layers are transformed correctly when +// SetContentBounds() is called. +TEST_F(ImageGridTest, SetContentBounds) { + // Size of the images around the grid's border. + const int kBorder = 2; + + scoped_ptr<gfx::Image> image_1x1(CreateImage(gfx::Size(1, 1))); + scoped_ptr<gfx::Image> image_1xB(CreateImage(gfx::Size(1, kBorder))); + scoped_ptr<gfx::Image> image_Bx1(CreateImage(gfx::Size(kBorder, 1))); + scoped_ptr<gfx::Image> image_BxB(CreateImage(gfx::Size(kBorder, kBorder))); + + ImageGrid grid; + grid.SetImages(image_BxB.get(), image_1xB.get(), image_BxB.get(), + image_Bx1.get(), image_1x1.get(), image_Bx1.get(), + image_BxB.get(), image_1xB.get(), image_BxB.get()); + + ImageGrid::TestAPI test_api(&grid); + + const gfx::Point origin(5, 10); + const gfx::Size size(20, 30); + grid.SetContentBounds(gfx::Rect(origin, size)); + + // The master layer is positioned above the top-left corner of the content + // bounds and has height/width that contain the grid and bounds. + EXPECT_EQ(gfx::RectF(origin.x() - kBorder, + origin.y() - kBorder, + size.width() + 2 * kBorder, + size.height() + 2 * kBorder).ToString(), + test_api.GetTransformedLayerBounds(*grid.layer()).ToString()); +} + +// Check that we don't crash if only a single image is supplied. +TEST_F(ImageGridTest, SingleImage) { + const int kBorder = 1; + scoped_ptr<gfx::Image> image(CreateImage(gfx::Size(kBorder, kBorder))); + + ImageGrid grid; + grid.SetImages(NULL, image.get(), NULL, + NULL, NULL, NULL, + NULL, NULL, NULL); + + ImageGrid::TestAPI test_api(&grid); + EXPECT_TRUE(grid.top_left_layer() == NULL); + ASSERT_TRUE(grid.top_layer() != NULL); + EXPECT_TRUE(grid.top_right_layer() == NULL); + EXPECT_TRUE(grid.left_layer() == NULL); + EXPECT_TRUE(grid.center_layer() == NULL); + EXPECT_TRUE(grid.right_layer() == NULL); + EXPECT_TRUE(grid.bottom_left_layer() == NULL); + EXPECT_TRUE(grid.bottom_layer() == NULL); + EXPECT_TRUE(grid.bottom_right_layer() == NULL); + + const gfx::Size kSize(10, 10); + grid.SetSize(kSize); + + // The top layer should be scaled horizontally across the entire width, but it + // shouldn't be scaled vertically. + EXPECT_EQ(gfx::RectF(0, 0, kSize.width(), kBorder).ToString(), + test_api.GetTransformedLayerBounds( + *grid.top_layer()).ToString()); +} + +// Check that we don't crash when we reset existing images to NULL and +// reset NULL images to new ones. +TEST_F(ImageGridTest, ResetImages) { + const int kBorder = 1; + scoped_ptr<gfx::Image> image(CreateImage(gfx::Size(kBorder, kBorder))); + + ImageGrid grid; + grid.SetImages(NULL, image.get(), NULL, + NULL, NULL, NULL, + NULL, NULL, NULL); + + // Only the top edge has a layer. + ImageGrid::TestAPI test_api(&grid); + ASSERT_TRUE(grid.top_left_layer() == NULL); + ASSERT_FALSE(grid.top_layer() == NULL); + ASSERT_TRUE(grid.top_right_layer() == NULL); + ASSERT_TRUE(grid.left_layer() == NULL); + ASSERT_TRUE(grid.center_layer() == NULL); + ASSERT_TRUE(grid.right_layer() == NULL); + ASSERT_TRUE(grid.bottom_left_layer() == NULL); + ASSERT_TRUE(grid.bottom_layer() == NULL); + ASSERT_TRUE(grid.bottom_right_layer() == NULL); + + grid.SetImages(NULL, NULL, NULL, + NULL, NULL, NULL, + NULL, image.get(), NULL); + + // Now only the bottom edge has a layer. + ASSERT_TRUE(grid.top_left_layer() == NULL); + ASSERT_TRUE(grid.top_layer() == NULL); + ASSERT_TRUE(grid.top_right_layer() == NULL); + ASSERT_TRUE(grid.left_layer() == NULL); + ASSERT_TRUE(grid.center_layer() == NULL); + ASSERT_TRUE(grid.right_layer() == NULL); + ASSERT_TRUE(grid.bottom_left_layer() == NULL); + ASSERT_FALSE(grid.bottom_layer() == NULL); + ASSERT_TRUE(grid.bottom_right_layer() == NULL); +} + +// Test that side (top, left, right, bottom) layers that are narrower than their +// adjacent corner layers stay pinned to the outside edges instead of getting +// moved inwards or scaled. This exercises the scenario used for shadows. +TEST_F(ImageGridTest, SmallerSides) { + const int kCorner = 2; + const int kEdge = 1; + + scoped_ptr<gfx::Image> top_left_image( + CreateImage(gfx::Size(kCorner, kCorner))); + scoped_ptr<gfx::Image> top_image(CreateImage(gfx::Size(kEdge, kEdge))); + scoped_ptr<gfx::Image> top_right_image( + CreateImage(gfx::Size(kCorner, kCorner))); + scoped_ptr<gfx::Image> left_image(CreateImage(gfx::Size(kEdge, kEdge))); + scoped_ptr<gfx::Image> right_image(CreateImage(gfx::Size(kEdge, kEdge))); + + ImageGrid grid; + grid.SetImages(top_left_image.get(), top_image.get(), top_right_image.get(), + left_image.get(), NULL, right_image.get(), + NULL, NULL, NULL); + ImageGrid::TestAPI test_api(&grid); + + const gfx::Size kSize(20, 30); + grid.SetSize(kSize); + + // The top layer should be flush with the top edge and stretched horizontally + // between the two top corners. + EXPECT_EQ(gfx::RectF( + kCorner, 0, kSize.width() - 2 * kCorner, kEdge).ToString(), + test_api.GetTransformedLayerBounds( + *grid.top_layer()).ToString()); + + // The left layer should be flush with the left edge and stretched vertically + // between the top left corner and the bottom. + EXPECT_EQ(gfx::RectF( + 0, kCorner, kEdge, kSize.height() - kCorner).ToString(), + test_api.GetTransformedLayerBounds( + *grid.left_layer()).ToString()); + + // The right layer should be flush with the right edge and stretched + // vertically between the top right corner and the bottom. + EXPECT_EQ(gfx::RectF( + kSize.width() - kEdge, kCorner, + kEdge, kSize.height() - kCorner).ToString(), + test_api.GetTransformedLayerBounds( + *grid.right_layer()).ToString()); +} + +// Test that we hide or clip layers as needed when the grid is assigned a small +// size. +TEST_F(ImageGridTest, TooSmall) { + const int kCorner = 5; + const int kCenter = 3; + const int kEdge = 3; + + scoped_ptr<gfx::Image> top_left_image( + CreateImage(gfx::Size(kCorner, kCorner))); + scoped_ptr<gfx::Image> top_image(CreateImage(gfx::Size(kEdge, kEdge))); + scoped_ptr<gfx::Image> top_right_image( + CreateImage(gfx::Size(kCorner, kCorner))); + scoped_ptr<gfx::Image> left_image(CreateImage(gfx::Size(kEdge, kEdge))); + scoped_ptr<gfx::Image> center_image(CreateImage(gfx::Size(kCenter, kCenter))); + scoped_ptr<gfx::Image> right_image(CreateImage(gfx::Size(kEdge, kEdge))); + scoped_ptr<gfx::Image> bottom_left_image( + CreateImage(gfx::Size(kCorner, kCorner))); + scoped_ptr<gfx::Image> bottom_image(CreateImage(gfx::Size(kEdge, kEdge))); + scoped_ptr<gfx::Image> bottom_right_image( + CreateImage(gfx::Size(kCorner, kCorner))); + + ImageGrid grid; + grid.SetImages( + top_left_image.get(), top_image.get(), top_right_image.get(), + left_image.get(), center_image.get(), right_image.get(), + bottom_left_image.get(), bottom_image.get(), bottom_right_image.get()); + ImageGrid::TestAPI test_api(&grid); + + // Set a size that's smaller than the combined (unscaled) corner images. + const gfx::Size kSmallSize(kCorner + kCorner - 3, kCorner + kCorner - 5); + grid.SetSize(kSmallSize); + + // The scalable images around the sides and in the center should be hidden. + EXPECT_FALSE(grid.top_layer()->visible()); + EXPECT_FALSE(grid.bottom_layer()->visible()); + EXPECT_FALSE(grid.left_layer()->visible()); + EXPECT_FALSE(grid.right_layer()->visible()); + EXPECT_FALSE(grid.center_layer()->visible()); + + // The corner images' clip rects should sum to the expected size. + EXPECT_EQ(kSmallSize.width(), + test_api.top_left_clip_rect().width() + + test_api.top_right_clip_rect().width()); + EXPECT_EQ(kSmallSize.width(), + test_api.bottom_left_clip_rect().width() + + test_api.bottom_right_clip_rect().width()); + EXPECT_EQ(kSmallSize.height(), + test_api.top_left_clip_rect().height() + + test_api.bottom_left_clip_rect().height()); + EXPECT_EQ(kSmallSize.height(), + test_api.top_right_clip_rect().height() + + test_api.bottom_right_clip_rect().height()); + + // Resize the grid to be large enough to show all images. + const gfx::Size kLargeSize(kCorner + kCorner + kCenter, + kCorner + kCorner + kCenter); + grid.SetSize(kLargeSize); + + // The scalable images should be visible now. + EXPECT_TRUE(grid.top_layer()->visible()); + EXPECT_TRUE(grid.bottom_layer()->visible()); + EXPECT_TRUE(grid.left_layer()->visible()); + EXPECT_TRUE(grid.right_layer()->visible()); + EXPECT_TRUE(grid.center_layer()->visible()); + + // We shouldn't be clipping the corner images anymore. + EXPECT_TRUE(test_api.top_left_clip_rect().IsEmpty()); + EXPECT_TRUE(test_api.top_right_clip_rect().IsEmpty()); + EXPECT_TRUE(test_api.bottom_left_clip_rect().IsEmpty()); + EXPECT_TRUE(test_api.bottom_right_clip_rect().IsEmpty()); +} + +} // namespace wm |