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// Copyright 2014 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/views/controls/menu/menu_item_view.h"
#include "base/strings/string16.h"
#include "base/strings/utf_string_conversions.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/views/controls/menu/submenu_view.h"
#include "ui/views/view.h"
namespace {
// A simple View class that will match its height to the available width.
class SquareView : public views::View {
public:
SquareView() {}
~SquareView() override {}
private:
gfx::Size GetPreferredSize() const override { return gfx::Size(1, 1); }
int GetHeightForWidth(int width) const override { return width; }
};
// A MenuItemView implementation with a public destructor (so we can clean up
// in tests).
class TestMenuItemView : public views::MenuItemView {
public:
TestMenuItemView() : views::MenuItemView(NULL) {}
~TestMenuItemView() override {}
};
} // namespace
TEST(MenuItemViewUnitTest, TestMenuItemViewWithFlexibleWidthChild) {
TestMenuItemView root_menu;
root_menu.set_owned_by_client();
// Append a normal MenuItemView.
views::MenuItemView* label_view =
root_menu.AppendMenuItemWithLabel(1, base::ASCIIToUTF16("item 1"));
// Append a second MenuItemView that has a child SquareView.
views::MenuItemView* flexible_view =
root_menu.AppendMenuItemWithLabel(2, base::string16());
flexible_view->AddChildView(new SquareView());
// Set margins to 0 so that we know width should match height.
flexible_view->SetMargins(0, 0);
views::SubmenuView* submenu = root_menu.GetSubmenu();
// The first item should be the label view.
ASSERT_EQ(label_view, submenu->GetMenuItemAt(0));
gfx::Size label_size = label_view->GetPreferredSize();
// The second item should be the flexible view.
ASSERT_EQ(flexible_view, submenu->GetMenuItemAt(1));
gfx::Size flexible_size = flexible_view->GetPreferredSize();
// The flexible view's "preferred size" should be 1x1...
EXPECT_EQ(flexible_size, gfx::Size(1, 1));
// ...but it should use whatever space is available to make a square.
int flex_height = flexible_view->GetHeightForWidth(label_size.width());
EXPECT_EQ(label_size.width(), flex_height);
// The submenu should be tall enough to allow for both menu items at the given
// width.
EXPECT_EQ(label_size.height() + flex_height,
submenu->GetPreferredSize().height());
}
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