blob: 58d511b169a3cc9a58a37bdea076ccdc1f54701e [file] [log] [blame]
// 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.setInfo(SkImageInfo::MakeN32Premul(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;
std::unique_ptr<gfx::Image> image_1x1(CreateImage(gfx::Size(1, 1)));
std::unique_ptr<gfx::Image> image_1xB(CreateImage(gfx::Size(1, kBorder)));
std::unique_ptr<gfx::Image> image_Bx1(CreateImage(gfx::Size(kBorder, 1)));
std::unique_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;
std::unique_ptr<gfx::Image> image_1x1(CreateImage(gfx::Size(1, 1)));
std::unique_ptr<gfx::Image> image_1xB(CreateImage(gfx::Size(1, kBorder)));
std::unique_ptr<gfx::Image> image_Bx1(CreateImage(gfx::Size(kBorder, 1)));
std::unique_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;
std::unique_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;
std::unique_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;
std::unique_ptr<gfx::Image> top_left_image(
CreateImage(gfx::Size(kCorner, kCorner)));
std::unique_ptr<gfx::Image> top_image(CreateImage(gfx::Size(kEdge, kEdge)));
std::unique_ptr<gfx::Image> top_right_image(
CreateImage(gfx::Size(kCorner, kCorner)));
std::unique_ptr<gfx::Image> left_image(CreateImage(gfx::Size(kEdge, kEdge)));
std::unique_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;
std::unique_ptr<gfx::Image> top_left_image(
CreateImage(gfx::Size(kCorner, kCorner)));
std::unique_ptr<gfx::Image> top_image(CreateImage(gfx::Size(kEdge, kEdge)));
std::unique_ptr<gfx::Image> top_right_image(
CreateImage(gfx::Size(kCorner, kCorner)));
std::unique_ptr<gfx::Image> left_image(CreateImage(gfx::Size(kEdge, kEdge)));
std::unique_ptr<gfx::Image> center_image(
CreateImage(gfx::Size(kCenter, kCenter)));
std::unique_ptr<gfx::Image> right_image(CreateImage(gfx::Size(kEdge, kEdge)));
std::unique_ptr<gfx::Image> bottom_left_image(
CreateImage(gfx::Size(kCorner, kCorner)));
std::unique_ptr<gfx::Image> bottom_image(
CreateImage(gfx::Size(kEdge, kEdge)));
std::unique_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