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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 "components/enterprise/data_controls/content/browser/last_replaced_clipboard_data.h"
#include "ui/base/clipboard/clipboard.h"
#include "ui/base/clipboard/clipboard_constants.h"
#include "ui/base/clipboard/clipboard_monitor.h"
#include "ui/base/clipboard/clipboard_util.h"
namespace data_controls {
std::vector<std::u16string> LastReplacedClipboardData::GetAvailableTypes()
const {
std::vector<std::u16string> types;
if (!clipboard_paste_data.text.empty()) {
types.push_back(ui::kMimeTypePlainText16);
}
if (!clipboard_paste_data.html.empty()) {
types.push_back(ui::kMimeTypeHtml16);
}
if (!clipboard_paste_data.svg.empty()) {
types.push_back(ui::kMimeTypeSvg16);
}
if (!clipboard_paste_data.rtf.empty()) {
types.push_back(ui::kMimeTypeRtf16);
}
if (!clipboard_paste_data.png.empty()) {
types.push_back(ui::kMimeTypePng16);
}
if (!clipboard_paste_data.bitmap.empty()) {
types.push_back(u"image/bmp");
}
if (!clipboard_paste_data.file_paths.empty()) {
types.push_back(ui::kMimeTypeUriList16);
}
for (const auto& entry : clipboard_paste_data.custom_data) {
types.push_back(entry.first);
}
return types;
}
LastReplacedClipboardData& GetLastReplacedClipboardData() {
static base::NoDestructor<LastReplacedClipboardData> data;
return *data.get();
}
// static
LastReplacedClipboardDataObserver*
LastReplacedClipboardDataObserver::GetInstance() {
static base::NoDestructor<LastReplacedClipboardDataObserver> observer;
return observer.get();
}
void LastReplacedClipboardDataObserver::AddDataToNextSeqno(
content::ClipboardPasteData data) {
// Bitmap isn't used directly by pasting code, so it must first be converted
// to PNG before being stored in `GetLastReplacedClipboardData()`.
if (!data.bitmap.empty()) {
data.png =
ui::clipboard_util::EncodeBitmapToPngAcceptJank(std::move(data.bitmap));
data.bitmap = SkBitmap();
}
if (pending_seqno_data_.empty()) {
ui::ClipboardMonitor::GetInstance()->AddObserver(this);
}
pending_seqno_data_.Merge(std::move(data));
}
void LastReplacedClipboardDataObserver::OnClipboardDataChanged() {
GetLastReplacedClipboardData() = {
.seqno = ui::Clipboard::GetForCurrentThread()->GetSequenceNumber(
ui::ClipboardBuffer::kCopyPaste),
// `LastReplacedClipboardData::clipboard_paste_data` is reassigned to
// clear previous data corresponding to an older seqno.
.clipboard_paste_data = std::move(pending_seqno_data_),
};
// Explicitly clear `pending_seqno_data_` in case it eventually holds a data
// member that doesn't clear itself cleanly after moving.
pending_seqno_data_ = content::ClipboardPasteData();
ui::ClipboardMonitor::GetInstance()->RemoveObserver(this);
}
} // namespace data_controls
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