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// Copyright (c) 2012 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 "ui/base/clipboard/scoped_clipboard_writer.h"
#include <memory>
#include <utility>
#include "base/pickle.h"
#include "base/strings/utf_string_conversions.h"
#include "net/base/escape.h"
#include "ui/base/clipboard/clipboard_format_type.h"
#include "ui/base/clipboard/clipboard_metrics.h"
#include "ui/gfx/geometry/size.h"
// Documentation on the format of the parameters for each clipboard target can
// be found in clipboard.h.
namespace ui {
ScopedClipboardWriter::ScopedClipboardWriter(
ClipboardBuffer buffer,
std::unique_ptr<DataTransferEndpoint> data_src)
: buffer_(buffer), data_src_(std::move(data_src)) {}
ScopedClipboardWriter::~ScopedClipboardWriter() {
static constexpr size_t kMaxRepresentations = 1 << 12;
DCHECK(objects_.empty() || platform_representations_.empty())
<< "Portable and Platform representations should not be written on the "
"same write.";
DCHECK(platform_representations_.size() < kMaxRepresentations);
if (!objects_.empty()) {
Clipboard::GetForCurrentThread()->WritePortableRepresentations(
buffer_, objects_, std::move(data_src_));
} else if (!platform_representations_.empty()) {
Clipboard::GetForCurrentThread()->WritePlatformRepresentations(
buffer_, std::move(platform_representations_), std::move(data_src_));
}
if (confidential_)
Clipboard::GetForCurrentThread()->MarkAsConfidential();
}
void ScopedClipboardWriter::WriteText(const base::string16& text) {
RecordWrite(ClipboardFormatMetric::kText);
std::string utf8_text = base::UTF16ToUTF8(text);
Clipboard::ObjectMapParams parameters;
parameters.push_back(
Clipboard::ObjectMapParam(utf8_text.begin(), utf8_text.end()));
objects_[Clipboard::PortableFormat::kText] = parameters;
}
void ScopedClipboardWriter::WriteHTML(const base::string16& markup,
const std::string& source_url) {
RecordWrite(ClipboardFormatMetric::kHtml);
std::string utf8_markup = base::UTF16ToUTF8(markup);
Clipboard::ObjectMapParams parameters;
parameters.push_back(
Clipboard::ObjectMapParam(utf8_markup.begin(),
utf8_markup.end()));
if (!source_url.empty()) {
parameters.push_back(Clipboard::ObjectMapParam(source_url.begin(),
source_url.end()));
}
objects_[Clipboard::PortableFormat::kHtml] = parameters;
}
void ScopedClipboardWriter::WriteSvg(const base::string16& markup) {
RecordWrite(ClipboardFormatMetric::kSvg);
std::string utf8_markup = base::UTF16ToUTF8(markup);
Clipboard::ObjectMapParams parameters;
parameters.push_back(
Clipboard::ObjectMapParam(utf8_markup.begin(), utf8_markup.end()));
objects_[Clipboard::PortableFormat::kSvg] = parameters;
}
void ScopedClipboardWriter::WriteRTF(const std::string& rtf_data) {
RecordWrite(ClipboardFormatMetric::kRtf);
Clipboard::ObjectMapParams parameters;
parameters.push_back(Clipboard::ObjectMapParam(rtf_data.begin(),
rtf_data.end()));
objects_[Clipboard::PortableFormat::kRtf] = parameters;
}
void ScopedClipboardWriter::WriteBookmark(const base::string16& bookmark_title,
const std::string& url) {
if (bookmark_title.empty() || url.empty())
return;
RecordWrite(ClipboardFormatMetric::kBookmark);
std::string utf8_markup = base::UTF16ToUTF8(bookmark_title);
Clipboard::ObjectMapParams parameters;
parameters.push_back(Clipboard::ObjectMapParam(utf8_markup.begin(),
utf8_markup.end()));
parameters.push_back(Clipboard::ObjectMapParam(url.begin(), url.end()));
objects_[Clipboard::PortableFormat::kBookmark] = parameters;
}
void ScopedClipboardWriter::WriteHyperlink(const base::string16& anchor_text,
const std::string& url) {
if (anchor_text.empty() || url.empty())
return;
// Construct the hyperlink.
std::string html = "<a href=\"";
html += net::EscapeForHTML(url);
html += "\">";
html += net::EscapeForHTML(base::UTF16ToUTF8(anchor_text));
html += "</a>";
WriteHTML(base::UTF8ToUTF16(html), std::string());
}
void ScopedClipboardWriter::WriteWebSmartPaste() {
RecordWrite(ClipboardFormatMetric::kWebSmartPaste);
objects_[Clipboard::PortableFormat::kWebkit] = Clipboard::ObjectMapParams();
}
void ScopedClipboardWriter::WriteImage(const SkBitmap& bitmap) {
if (bitmap.drawsNothing())
return;
DCHECK(bitmap.getPixels());
RecordWrite(ClipboardFormatMetric::kImage);
// The platform code that sets this bitmap into the system clipboard expects
// to get N32 32bpp bitmaps. If they get the wrong type and mishandle it, a
// memcpy of the pixels can cause out-of-bounds issues.
CHECK_EQ(bitmap.colorType(), kN32_SkColorType);
bitmap_ = bitmap;
// TODO(dcheng): This is slightly less horrible than what we used to do, but
// only very slightly less.
SkBitmap* bitmap_pointer = &bitmap_;
Clipboard::ObjectMapParam packed_pointer;
packed_pointer.resize(sizeof(bitmap_pointer));
*reinterpret_cast<SkBitmap**>(&*packed_pointer.begin()) = bitmap_pointer;
Clipboard::ObjectMapParams parameters;
parameters.push_back(packed_pointer);
objects_[Clipboard::PortableFormat::kBitmap] = parameters;
}
void ScopedClipboardWriter::MarkAsConfidential() {
confidential_ = true;
}
void ScopedClipboardWriter::WritePickledData(
const base::Pickle& pickle,
const ClipboardFormatType& format) {
RecordWrite(ClipboardFormatMetric::kCustomData);
std::string format_string = format.Serialize();
Clipboard::ObjectMapParam format_parameter(format_string.begin(),
format_string.end());
Clipboard::ObjectMapParam data_parameter;
data_parameter.resize(pickle.size());
memcpy(const_cast<char*>(&data_parameter.front()),
pickle.data(), pickle.size());
Clipboard::ObjectMapParams parameters;
parameters.push_back(format_parameter);
parameters.push_back(data_parameter);
objects_[Clipboard::PortableFormat::kData] = parameters;
}
void ScopedClipboardWriter::WriteData(const base::string16& format,
mojo_base::BigBuffer data) {
RecordWrite(ClipboardFormatMetric::kData);
platform_representations_.push_back(
{base::UTF16ToUTF8(format), std::move(data)});
}
void ScopedClipboardWriter::Reset() {
objects_.clear();
platform_representations_.clear();
bitmap_.reset();
confidential_ = false;
}
} // namespace ui
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