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// Copyright 2017 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 "components/exo/seat.h"
#include "base/files/file_util.h"
#include "base/memory/scoped_refptr.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task_scheduler/task_scheduler.h"
#include "components/exo/data_source.h"
#include "components/exo/data_source_delegate.h"
#include "components/exo/seat_observer.h"
#include "components/exo/test/exo_test_base.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/base/clipboard/clipboard.h"
#include "ui/base/clipboard/scoped_clipboard_writer.h"
namespace exo {
namespace {
using SeatTest = test::ExoTestBase;
class MockSeatObserver : public SeatObserver {
public:
int on_surface_focused_count() { return on_surface_focused_count_; }
// Overridden from SeatObserver:
void OnSurfaceFocusing(Surface* gaining_focus) override {
ASSERT_EQ(on_surface_focused_count_, on_surface_pre_focused_count_);
on_surface_pre_focused_count_++;
}
void OnSurfaceFocused(Surface* gained_focus) override {
on_surface_focused_count_++;
ASSERT_EQ(on_surface_focused_count_, on_surface_pre_focused_count_);
}
private:
int on_surface_pre_focused_count_ = 0;
int on_surface_focused_count_ = 0;
};
class TestDataSourceDelegate : public DataSourceDelegate {
public:
TestDataSourceDelegate() {}
bool cancelled() const { return cancelled_; }
// Overridden from DataSourceDelegate:
void OnDataSourceDestroying(DataSource* device) override {}
void OnTarget(const std::string& mime_type) override {}
void OnSend(const std::string& mime_type, base::ScopedFD fd) override {
std::string test_data = "TestData";
ASSERT_TRUE(base::WriteFileDescriptor(fd.get(), test_data.data(),
test_data.size()));
}
void OnCancelled() override { cancelled_ = true; }
void OnDndDropPerformed() override {}
void OnDndFinished() override {}
void OnAction(DndAction dnd_action) override {}
private:
bool cancelled_ = false;
DISALLOW_COPY_AND_ASSIGN(TestDataSourceDelegate);
};
void RunReadingTask() {
base::TaskScheduler::GetInstance()->FlushForTesting();
base::RunLoop().RunUntilIdle();
}
TEST_F(SeatTest, OnSurfaceFocused) {
Seat seat;
MockSeatObserver observer;
seat.AddObserver(&observer);
seat.OnWindowFocused(nullptr, nullptr);
ASSERT_EQ(1, observer.on_surface_focused_count());
seat.RemoveObserver(&observer);
seat.OnWindowFocused(nullptr, nullptr);
ASSERT_EQ(1, observer.on_surface_focused_count());
}
TEST_F(SeatTest, SetSelection) {
Seat seat;
TestDataSourceDelegate delegate;
DataSource source(&delegate);
source.Offer("text/plain;charset=utf-8");
seat.SetSelection(&source);
RunReadingTask();
std::string clipboard;
ui::Clipboard::GetForCurrentThread()->ReadAsciiText(
ui::CLIPBOARD_TYPE_COPY_PASTE, &clipboard);
EXPECT_EQ(clipboard, std::string("TestData"));
}
TEST_F(SeatTest, SetSelection_TwiceSame) {
Seat seat;
TestDataSourceDelegate delegate;
DataSource source(&delegate);
seat.SetSelection(&source);
RunReadingTask();
seat.SetSelection(&source);
RunReadingTask();
EXPECT_FALSE(delegate.cancelled());
}
TEST_F(SeatTest, SetSelection_TwiceDifferent) {
Seat seat;
TestDataSourceDelegate delegate1;
DataSource source1(&delegate1);
seat.SetSelection(&source1);
RunReadingTask();
EXPECT_FALSE(delegate1.cancelled());
TestDataSourceDelegate delegate2;
DataSource source2(&delegate2);
seat.SetSelection(&source2);
RunReadingTask();
EXPECT_TRUE(delegate1.cancelled());
}
TEST_F(SeatTest, SetSelection_ClipboardChangedDuringSetSelection) {
Seat seat;
TestDataSourceDelegate delegate;
DataSource source(&delegate);
seat.SetSelection(&source);
{
ui::ScopedClipboardWriter writer(ui::CLIPBOARD_TYPE_COPY_PASTE);
writer.WriteText(base::UTF8ToUTF16("New data"));
}
RunReadingTask();
// The previous source should be cancelled.
EXPECT_TRUE(delegate.cancelled());
std::string clipboard;
ui::Clipboard::GetForCurrentThread()->ReadAsciiText(
ui::CLIPBOARD_TYPE_COPY_PASTE, &clipboard);
EXPECT_EQ(clipboard, "New data");
}
TEST_F(SeatTest, SetSelection_ClipboardChangedAfterSetSelection) {
Seat seat;
TestDataSourceDelegate delegate;
DataSource source(&delegate);
seat.SetSelection(&source);
RunReadingTask();
{
ui::ScopedClipboardWriter writer(ui::CLIPBOARD_TYPE_COPY_PASTE);
writer.WriteText(base::UTF8ToUTF16("New data"));
}
// The previous source should be cancelled.
EXPECT_TRUE(delegate.cancelled());
std::string clipboard;
ui::Clipboard::GetForCurrentThread()->ReadAsciiText(
ui::CLIPBOARD_TYPE_COPY_PASTE, &clipboard);
EXPECT_EQ(clipboard, "New data");
}
TEST_F(SeatTest, SetSelection_SourceDestroyedDuringSetSelection) {
Seat seat;
{
ui::ScopedClipboardWriter writer(ui::CLIPBOARD_TYPE_COPY_PASTE);
writer.WriteText(base::UTF8ToUTF16("Original data"));
}
{
TestDataSourceDelegate delegate;
DataSource source(&delegate);
seat.SetSelection(&source);
// source destroyed here.
}
RunReadingTask();
std::string clipboard;
ui::Clipboard::GetForCurrentThread()->ReadAsciiText(
ui::CLIPBOARD_TYPE_COPY_PASTE, &clipboard);
EXPECT_EQ(clipboard, "Original data");
}
TEST_F(SeatTest, SetSelection_SourceDestroyedAfterSetSelection) {
Seat seat;
TestDataSourceDelegate delegate1;
{
DataSource source(&delegate1);
seat.SetSelection(&source);
RunReadingTask();
// source destroyed here.
}
RunReadingTask();
{
TestDataSourceDelegate delegate2;
DataSource source(&delegate2);
seat.SetSelection(&source);
RunReadingTask();
// source destroyed here.
}
RunReadingTask();
// delegate1 should not receive cancel request because the first data source
// has already been destroyed.
EXPECT_FALSE(delegate1.cancelled());
}
TEST_F(SeatTest, SetSelection_NullSource) {
Seat seat;
TestDataSourceDelegate delegate;
DataSource source(&delegate);
source.Offer("text/plain;charset=utf-8");
seat.SetSelection(&source);
RunReadingTask();
// Should clear the clipboard.
seat.SetSelection(nullptr);
ASSERT_TRUE(delegate.cancelled());
std::string clipboard;
ui::Clipboard::GetForCurrentThread()->ReadAsciiText(
ui::CLIPBOARD_TYPE_COPY_PASTE, &clipboard);
EXPECT_EQ(clipboard, "");
}
} // namespace
} // namespace exo
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