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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/views/tabs/tab_strip_control_button.h"
#include "base/test/bind.h"
#include "chrome/browser/ui/views/tabs/fake_base_tab_strip_controller.h"
#include "chrome/test/views/chrome_views_test_base.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkPath.h"
#include "third_party/skia/include/core/SkRegion.h"
class TabStripController;
constexpr int kBorderThickness = 4;
class FrameCondensedController : public FakeBaseTabStripController {
public:
bool IsFrameCondensed() const override { return condensed_; }
void set_condensed(bool condensed) { condensed_ = condensed; }
private:
bool condensed_ = false;
};
class TabStripControlButtonTest : public ChromeViewsTestBase {
public:
void SetUp() override {
ChromeViewsTestBase::SetUp();
tab_strip_controller_ = std::make_unique<FrameCondensedController>();
button_ = std::make_unique<TabStripControlButton>(
tab_strip_controller_.get(), base::BindLambdaForTesting([]() {}), u"");
button_->SetBorder(
views::CreateEmptyBorder(gfx::Insets::VH(kBorderThickness, 0)));
button_->SetSize(button_->CalculatePreferredSize({}));
}
protected:
std::unique_ptr<FrameCondensedController> tab_strip_controller_;
std::unique_ptr<TabStripControlButton> button_;
};
TEST_F(TabStripControlButtonTest, UncondensedFrameHitTestMask) {
SkPath path;
button_->GetHitTestMask(&path);
SkRegion clip_region;
clip_region.setRect({0, 0, button_->width(), button_->height()});
SkRegion mask;
mask.setPath(path, clip_region);
const int center_x = button_->width() / 2;
const int center_y = button_->height() / 2;
const int top = kBorderThickness;
const int left = 0;
const int bottom = button_->height() - kBorderThickness - 1;
const int right = button_->width() - 1;
EXPECT_TRUE(mask.contains(center_x, center_y));
// The points where the circle touches the border are in the mask.
EXPECT_TRUE(mask.contains(center_x, top));
EXPECT_TRUE(mask.contains(center_x, bottom));
EXPECT_TRUE(mask.contains(left, center_y));
EXPECT_TRUE(mask.contains(right, center_y));
// The four corners of the border are not in the mask.
EXPECT_FALSE(mask.contains(left, top));
EXPECT_FALSE(mask.contains(left, bottom));
EXPECT_FALSE(mask.contains(right, top));
EXPECT_FALSE(mask.contains(right, bottom));
}
TEST_F(TabStripControlButtonTest, CondensedFrameHitTestMask) {
tab_strip_controller_->set_condensed(true);
SkPath path;
button_->GetHitTestMask(&path);
SkRegion clip_region;
clip_region.setRect({0, 0, button_->width(), button_->height()});
SkRegion mask;
mask.setPath(path, clip_region);
const int center_x = button_->width() / 2;
const int center_y = button_->height() / 2;
const int top = kBorderThickness;
const int left = 0;
const int bottom = button_->height() - kBorderThickness - 1;
const int right = button_->width() - 1;
EXPECT_TRUE(mask.contains(center_x, center_y));
// The points where the circle touches the border are in the mask.
EXPECT_TRUE(mask.contains(center_x, top));
EXPECT_TRUE(mask.contains(center_x, bottom));
EXPECT_TRUE(mask.contains(left, center_y));
EXPECT_TRUE(mask.contains(right, center_y));
// The entire top of the view (including the border!) is in the mask.
EXPECT_TRUE(mask.contains(center_x, 0));
EXPECT_TRUE(mask.contains(left, 0));
EXPECT_TRUE(mask.contains(right, 0));
// The bottom corners of the border are not in the mask.
EXPECT_FALSE(mask.contains(right, bottom));
EXPECT_FALSE(mask.contains(left, bottom));
}
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