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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/views/layout/flex_layout_view.h"
#include <memory>
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/geometry/insets.h"
#include "ui/views/layout/flex_layout_types.h"
#include "ui/views/test/views_test_utils.h"
#include "ui/views/view_test_api.h"
namespace views {
class FlexLayoutViewTest : public testing::Test {
public:
void SetUp() override { host_ = std::make_unique<FlexLayoutView>(); }
FlexLayoutView* host() { return host_.get(); }
private:
std::unique_ptr<FlexLayoutView> host_;
};
TEST_F(FlexLayoutViewTest, LayoutInvalidationWhenPropertyChanged) {
ViewTestApi view_test_api(host());
auto reset_layout = [&]() {
EXPECT_TRUE(view_test_api.needs_layout());
// Call layout() to set layout to a valid state.
test::RunScheduledLayout(host());
};
// Ensure host() starts with a valid layout.
test::RunScheduledLayout(host());
EXPECT_NE(LayoutOrientation::kVertical, host()->GetOrientation());
host()->SetOrientation(LayoutOrientation::kVertical);
reset_layout();
EXPECT_NE(LayoutAlignment::kEnd, host()->GetMainAxisAlignment());
host()->SetMainAxisAlignment(LayoutAlignment::kEnd);
reset_layout();
EXPECT_NE(LayoutAlignment::kEnd, host()->GetCrossAxisAlignment());
host()->SetCrossAxisAlignment(LayoutAlignment::kEnd);
reset_layout();
constexpr gfx::Insets interior_margin(10);
EXPECT_NE(interior_margin, host()->GetInteriorMargin());
host()->SetInteriorMargin(interior_margin);
reset_layout();
constexpr int min_cross_axis_size = 10;
EXPECT_NE(min_cross_axis_size, host()->GetMinimumCrossAxisSize());
host()->SetMinimumCrossAxisSize(min_cross_axis_size);
reset_layout();
constexpr bool collapse_margins = true;
EXPECT_NE(collapse_margins, host()->GetCollapseMargins());
host()->SetCollapseMargins(collapse_margins);
reset_layout();
constexpr bool include_host_insets_in_layout = true;
EXPECT_NE(include_host_insets_in_layout,
host()->GetIncludeHostInsetsInLayout());
host()->SetIncludeHostInsetsInLayout(include_host_insets_in_layout);
reset_layout();
constexpr bool ignore_default_main_axis_margins = true;
EXPECT_NE(ignore_default_main_axis_margins,
host()->GetIgnoreDefaultMainAxisMargins());
host()->SetIgnoreDefaultMainAxisMargins(ignore_default_main_axis_margins);
reset_layout();
constexpr FlexAllocationOrder flex_allocation_order =
FlexAllocationOrder::kReverse;
EXPECT_NE(flex_allocation_order, host()->GetFlexAllocationOrder());
host()->SetFlexAllocationOrder(flex_allocation_order);
reset_layout();
}
TEST_F(FlexLayoutViewTest, NoLayoutInvalidationWhenPropertyUnchanged) {
ViewTestApi view_test_api(host());
// Ensure view starts with a valid layout.
test::RunScheduledLayout(host());
host()->SetOrientation(host()->GetOrientation());
host()->SetMainAxisAlignment(host()->GetMainAxisAlignment());
host()->SetCrossAxisAlignment(host()->GetCrossAxisAlignment());
host()->SetInteriorMargin(host()->GetInteriorMargin());
host()->SetMinimumCrossAxisSize(host()->GetMinimumCrossAxisSize());
host()->SetCollapseMargins(host()->GetCollapseMargins());
host()->SetIncludeHostInsetsInLayout(host()->GetIncludeHostInsetsInLayout());
host()->SetIgnoreDefaultMainAxisMargins(
host()->GetIgnoreDefaultMainAxisMargins());
host()->SetFlexAllocationOrder(host()->GetFlexAllocationOrder());
EXPECT_FALSE(view_test_api.needs_layout());
}
} // namespace views
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