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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 <string>
#include "ui/app_list/folder_image.h"
#include "base/macros.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/app_list/app_list_constants.h"
#include "ui/app_list/app_list_item.h"
#include "ui/app_list/app_list_item_list.h"
#include "ui/app_list/app_list_model.h"
#include "ui/gfx/skia_util.h"
namespace app_list {
namespace {
gfx::ImageSkia CreateSquareBitmapWithColor(int size, SkColor color) {
SkBitmap bitmap;
bitmap.allocN32Pixels(size, size);
bitmap.eraseColor(color);
return gfx::ImageSkia::CreateFrom1xBitmap(bitmap);
}
bool ImagesAreEqual(const gfx::ImageSkia& image1,
const gfx::ImageSkia& image2) {
return gfx::BitmapsAreEqual(*image1.bitmap(), *image2.bitmap());
}
// Listens for OnFolderImageUpdated and sets a flag upon receiving the signal.
class TestFolderImageObserver : public FolderImageObserver {
public:
TestFolderImageObserver() : updated_flag_(false) {}
bool updated() const { return updated_flag_; }
void Reset() { updated_flag_ = false; }
// FolderImageObserver overrides:
void OnFolderImageUpdated() override { updated_flag_ = true; }
private:
bool updated_flag_;
DISALLOW_COPY_AND_ASSIGN(TestFolderImageObserver);
};
} // namespace
class FolderImageTest : public testing::Test {
public:
FolderImageTest() : folder_image_(app_list_model_.top_level_item_list()) {}
~FolderImageTest() override {}
void SetUp() override {
// Populate the AppListModel with three items (to test that the FolderImage
// correctly supports having fewer than four icons).
AddAppWithColoredIcon("app1", SK_ColorRED);
AddAppWithColoredIcon("app2", SK_ColorGREEN);
AddAppWithColoredIcon("app3", SK_ColorBLUE);
observer_.Reset();
folder_image_.AddObserver(&observer_);
}
void TearDown() override { folder_image_.RemoveObserver(&observer_); }
protected:
void AddAppWithColoredIcon(const std::string& id, SkColor icon_color) {
scoped_ptr<AppListItem> item(new AppListItem(id));
item->SetIcon(CreateSquareBitmapWithColor(kListIconSize, icon_color));
app_list_model_.AddItem(item.Pass());
}
AppListModel app_list_model_;
FolderImage folder_image_;
TestFolderImageObserver observer_;
private:
DISALLOW_COPY_AND_ASSIGN(FolderImageTest);
};
TEST_F(FolderImageTest, UpdateListTest) {
gfx::ImageSkia icon1 = folder_image_.icon();
// Call UpdateIcon and ensure that the observer event fired.
folder_image_.UpdateIcon();
EXPECT_TRUE(observer_.updated());
observer_.Reset();
// The icon should not have changed.
EXPECT_TRUE(ImagesAreEqual(icon1, folder_image_.icon()));
// Swap two items. Ensure that the observer fired and the icon changed.
app_list_model_.top_level_item_list()->MoveItem(2, 1);
EXPECT_TRUE(observer_.updated());
observer_.Reset();
gfx::ImageSkia icon2 = folder_image_.icon();
EXPECT_FALSE(ImagesAreEqual(icon1, icon2));
// Swap back items. Ensure that the observer fired and the icon changed back.
app_list_model_.top_level_item_list()->MoveItem(2, 1);
EXPECT_TRUE(observer_.updated());
observer_.Reset();
EXPECT_TRUE(ImagesAreEqual(icon1, folder_image_.icon()));
// Add a new item. Ensure that the observer fired and the icon changed.
AddAppWithColoredIcon("app4", SK_ColorYELLOW);
EXPECT_TRUE(observer_.updated());
observer_.Reset();
gfx::ImageSkia icon3 = folder_image_.icon();
EXPECT_FALSE(ImagesAreEqual(icon1, icon3));
// Add a new item. The observer should not fire, nor should the icon change
// (because it does not affect the first four icons).
AddAppWithColoredIcon("app5", SK_ColorCYAN);
EXPECT_FALSE(observer_.updated());
observer_.Reset();
EXPECT_TRUE(ImagesAreEqual(icon3, folder_image_.icon()));
// Delete an item. Ensure that the observer fired and the icon changed.
app_list_model_.DeleteItem("app2");
EXPECT_TRUE(observer_.updated());
observer_.Reset();
gfx::ImageSkia icon4 = folder_image_.icon();
EXPECT_FALSE(ImagesAreEqual(icon3, icon4));
}
TEST_F(FolderImageTest, UpdateItemTest) {
gfx::ImageSkia icon1 = folder_image_.icon();
// Change an item's icon. Ensure that the observer fired and the icon changed.
app_list_model_.FindItem("app2")
->SetIcon(CreateSquareBitmapWithColor(kListIconSize, SK_ColorMAGENTA));
EXPECT_TRUE(observer_.updated());
observer_.Reset();
EXPECT_FALSE(ImagesAreEqual(icon1, folder_image_.icon()));
}
} // namespace app_list
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