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// Copyright 2024 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/base/clipboard/clipboard_win.h"
#include "base/test/run_until.h"
#include "base/test/scoped_feature_list.h"
#include "base/test/task_environment.h"
#include "base/test/test_future.h"
#include "testing/platform_test.h"
#include "ui/base/clipboard/clipboard_monitor.h"
#include "ui/base/clipboard/clipboard_observer.h"
#include "ui/base/clipboard/scoped_clipboard_writer.h"
#include "ui/base/ui_base_features.h"
#include "ui/gfx/image/image_unittest_util.h"
namespace ui {
namespace {
class ClipboardWinTest : public PlatformTest, public ClipboardObserver {
public:
ClipboardWinTest() { ClipboardMonitor::GetInstance()->AddObserver(this); }
~ClipboardWinTest() override {
ClipboardMonitor::GetInstance()->RemoveObserver(this);
}
void TearDown() override { Clipboard::DestroyClipboardForCurrentThread(); }
void OnClipboardDataChanged() override { ++data_changed_count_; }
int data_changed_count() const { return data_changed_count_; }
private:
base::test::TaskEnvironment task_environment_{
base::test::TaskEnvironment::MainThreadType::UI};
int data_changed_count_ = 0;
};
} // namespace
TEST_F(ClipboardWinTest, DataChangedNotificationOnWrite) {
{
ScopedClipboardWriter writer(ClipboardBuffer::kCopyPaste);
writer.WriteText(u"text");
}
ASSERT_EQ(data_changed_count(), 1);
{
ScopedClipboardWriter writer(ClipboardBuffer::kCopyPaste);
writer.WriteHTML(u"html", "https://source.com/");
writer.WriteSvg(u"svg");
}
ASSERT_EQ(data_changed_count(), 2);
{
ScopedClipboardWriter writer(ClipboardBuffer::kCopyPaste);
writer.WriteRTF("rtf");
}
ASSERT_EQ(data_changed_count(), 3);
{
ScopedClipboardWriter writer(ClipboardBuffer::kCopyPaste);
writer.WriteImage(gfx::test::CreateBitmap(2, 3));
}
ASSERT_EQ(data_changed_count(), 4);
Clipboard::GetForCurrentThread()->Clear(ClipboardBuffer::kCopyPaste);
ASSERT_EQ(data_changed_count(), 5);
}
TEST_F(ClipboardWinTest, NoDataChangedNotificationOnRead) {
auto* clipboard = Clipboard::GetForCurrentThread();
std::vector<std::u16string> types;
clipboard->ReadAvailableTypes(ClipboardBuffer::kCopyPaste, nullptr, &types);
ASSERT_EQ(data_changed_count(), 0);
std::u16string text_result;
clipboard->ReadText(ClipboardBuffer::kCopyPaste, nullptr, &text_result);
ASSERT_EQ(data_changed_count(), 0);
std::string ascii_text_result;
clipboard->ReadAsciiText(ClipboardBuffer::kCopyPaste, nullptr,
&ascii_text_result);
ASSERT_EQ(data_changed_count(), 0);
std::u16string html;
std::string src_url;
uint32_t start;
uint32_t end;
clipboard->ReadHTML(ClipboardBuffer::kCopyPaste, nullptr, &html, &src_url,
&start, &end);
ASSERT_EQ(data_changed_count(), 0);
std::u16string svg;
clipboard->ReadSvg(ClipboardBuffer::kCopyPaste, nullptr, &svg);
ASSERT_EQ(data_changed_count(), 0);
std::string rtf;
clipboard->ReadRTF(ClipboardBuffer::kCopyPaste, nullptr, &rtf);
ASSERT_EQ(data_changed_count(), 0);
base::test::TestFuture<const std::vector<uint8_t>&> png_future;
clipboard->ReadPng(ClipboardBuffer::kCopyPaste, nullptr,
png_future.GetCallback());
ASSERT_TRUE(png_future.Wait());
ASSERT_EQ(data_changed_count(), 0);
std::u16string custom_data_result;
clipboard->ReadDataTransferCustomData(
ClipboardBuffer::kCopyPaste, u"text/plain", nullptr, &custom_data_result);
ASSERT_EQ(data_changed_count(), 0);
std::vector<FileInfo> file_infos;
clipboard->ReadFilenames(ClipboardBuffer::kCopyPaste, nullptr, &file_infos);
ASSERT_EQ(data_changed_count(), 0);
std::u16string title;
std::string bookmark_url;
clipboard->ReadBookmark(nullptr, &title, &bookmark_url);
ASSERT_EQ(data_changed_count(), 0);
std::string data_result;
clipboard->ReadData(ClipboardFormatType::PlainTextType(), nullptr,
&data_result);
ASSERT_EQ(data_changed_count(), 0);
}
// Test that the ClipboardMonitor sends a notification when data is written to
// the clipboard when ClipboardChangeEvent API is enabled. With the API enabled,
// the ClipboardMonitor gets notified of clipboard changes via the OS's
// clipboard change notification mechanism. (On Windows, this is done via the
// WM_CLIPBOARDUPDATE message.)
TEST_F(ClipboardWinTest, DataChangedNotificationOnWriteWithClipboardChangeAPI) {
base::test::ScopedFeatureList scoped_feature_list_;
scoped_feature_list_.InitAndEnableFeature(features::kClipboardChangeEvent);
{
ScopedClipboardWriter writer(ClipboardBuffer::kCopyPaste);
writer.WriteText(u"text");
}
// Since the WM_CLIPBOARDUPDATE message is sent on the same thread, we
// need to wait for the thread to process the message.
ASSERT_TRUE(base::test::RunUntil([&]() { return data_changed_count() == 1; }))
<< "Timeout waiting for the clipboardMonitor to be notified";
}
} // namespace ui
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