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// Copyright (c) 2011 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 "ash/test/aura_shell_test_base.h"
#include "ash/wm/image_grid.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/gfx/image/image.h"
using aura_shell::internal::ImageGrid;
namespace aura_shell {
namespace test {
namespace {
// Creates a gfx::Image with the requested dimensions.
gfx::Image* CreateImage(const gfx::Size& size) {
SkBitmap* bitmap = new SkBitmap();
bitmap->setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.height());
return new gfx::Image(bitmap);
}
} // namespace
typedef aura_shell::test::AuraShellTestBase 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.Init(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(test_api.top_left_layer() != NULL);
ASSERT_TRUE(test_api.top_layer() != NULL);
ASSERT_TRUE(test_api.top_right_layer() != NULL);
ASSERT_TRUE(test_api.left_layer() != NULL);
ASSERT_TRUE(test_api.center_layer() != NULL);
ASSERT_TRUE(test_api.right_layer() != NULL);
ASSERT_TRUE(test_api.bottom_left_layer() != NULL);
ASSERT_TRUE(test_api.bottom_layer() != NULL);
ASSERT_TRUE(test_api.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::Rect(0, 0, kBorder, kBorder).ToString(),
test_api.GetTransformedLayerBounds(
*test_api.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::Rect(
kBorder, 0, size.width() - 2 * kBorder, kBorder).ToString(),
test_api.GetTransformedLayerBounds(
*test_api.top_layer()).ToString());
// The top-right layer should be flush with the top-right corner and unscaled.
EXPECT_EQ(gfx::Rect(size.width() - kBorder, 0, kBorder, kBorder).ToString(),
test_api.GetTransformedLayerBounds(
*test_api.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::Rect(
0, kBorder, kBorder, size.height() - 2 * kBorder).ToString(),
test_api.GetTransformedLayerBounds(
*test_api.left_layer()).ToString());
// The center layer should fill the space in the middle of the grid.
EXPECT_EQ(gfx::Rect(
kBorder, kBorder, size.width() - 2 * kBorder,
size.height() - 2 * kBorder).ToString(),
test_api.GetTransformedLayerBounds(
*test_api.center_layer()).ToString());
// The right layer should be flush with the right edge and stretched
// vertically between the two right corners.
EXPECT_EQ(gfx::Rect(
size.width() - kBorder, kBorder,
kBorder, size.height() - 2 * kBorder).ToString(),
test_api.GetTransformedLayerBounds(
*test_api.right_layer()).ToString());
// The bottom-left layer should be flush with the bottom-left corner and
// unscaled.
EXPECT_EQ(gfx::Rect(0, size.height() - kBorder, kBorder, kBorder).ToString(),
test_api.GetTransformedLayerBounds(
*test_api.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::Rect(
kBorder, size.height() - kBorder,
size.width() - 2 * kBorder, kBorder).ToString(),
test_api.GetTransformedLayerBounds(
*test_api.bottom_layer()).ToString());
// The bottom-right layer should be flush with the bottom-right corner and
// unscaled.
EXPECT_EQ(gfx::Rect(
size.width() - kBorder, size.height() - kBorder,
kBorder, kBorder).ToString(),
test_api.GetTransformedLayerBounds(
*test_api.bottom_right_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.Init(NULL, image.get(), NULL,
NULL, NULL, NULL,
NULL, NULL, NULL);
ImageGrid::TestAPI test_api(&grid);
EXPECT_TRUE(test_api.top_left_layer() == NULL);
ASSERT_TRUE(test_api.top_layer() != NULL);
EXPECT_TRUE(test_api.top_right_layer() == NULL);
EXPECT_TRUE(test_api.left_layer() == NULL);
EXPECT_TRUE(test_api.center_layer() == NULL);
EXPECT_TRUE(test_api.right_layer() == NULL);
EXPECT_TRUE(test_api.bottom_left_layer() == NULL);
EXPECT_TRUE(test_api.bottom_layer() == NULL);
EXPECT_TRUE(test_api.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::Rect(0, 0, kSize.width(), kBorder).ToString(),
test_api.GetTransformedLayerBounds(
*test_api.top_layer()).ToString());
}
// 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.Init(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::Rect(
kCorner, 0, kSize.width() - 2 * kCorner, kEdge).ToString(),
test_api.GetTransformedLayerBounds(
*test_api.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::Rect(
0, kCorner, kEdge, kSize.height() - kCorner).ToString(),
test_api.GetTransformedLayerBounds(
*test_api.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::Rect(
kSize.width() - kEdge, kCorner,
kEdge, kSize.height() - kCorner).ToString(),
test_api.GetTransformedLayerBounds(
*test_api.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.Init(
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(test_api.top_layer()->visible());
EXPECT_FALSE(test_api.bottom_layer()->visible());
EXPECT_FALSE(test_api.left_layer()->visible());
EXPECT_FALSE(test_api.right_layer()->visible());
EXPECT_FALSE(test_api.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(test_api.top_layer()->visible());
EXPECT_TRUE(test_api.bottom_layer()->visible());
EXPECT_TRUE(test_api.left_layer()->visible());
EXPECT_TRUE(test_api.right_layer()->visible());
EXPECT_TRUE(test_api.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 test
} // namespace aura_shell
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