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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 "components/headless/clipboard/headless_clipboard.h"
#include <memory>
#include "ui/base/clipboard/clipboard.h"
#include "ui/base/clipboard/clipboard_buffer.h"
#include "ui/base/clipboard/clipboard_non_backed.h"
#include "ui/base/clipboard/clipboard_sequence_number_token.h"
namespace headless {
namespace {
int g_sequence_number_request_counter_for_testing = 0;
} // namespace
// Headless clipboard that is independent of any platform clipboard.
// It's required as a friend target for ui::ClipboardNonBacked whose
// ctor and dtor are private.
class HeadlessClipboard : public ui::ClipboardNonBacked {
public:
HeadlessClipboard() = default;
HeadlessClipboard(const HeadlessClipboard&) = delete;
HeadlessClipboard& operator=(const HeadlessClipboard&) = delete;
~HeadlessClipboard() override = default;
private:
// ui::ClipboardNonBacked overrides
const ui::ClipboardSequenceNumberToken& GetSequenceNumber(
ui::ClipboardBuffer buffer) const override {
// Count the sequence number requests so that we can verify that the
// headless keboard is indeed installed in tests.
++g_sequence_number_request_counter_for_testing;
return ui::ClipboardNonBacked::GetSequenceNumber(buffer);
}
};
void SetHeadlessClipboardForCurrentThread() {
ui::Clipboard::SetClipboardForCurrentThread(
std::make_unique<HeadlessClipboard>());
}
int GetSequenceNumberRequestCounterForTesting() { // IN-TEST
return g_sequence_number_request_counter_for_testing;
}
} // namespace headless
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