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// Copyright 2014 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/html_viewer/web_clipboard_impl.h"
#include "base/bind.h"
#include "components/html_viewer/blink_basic_type_converters.h"
using mojo::Array;
using mojo::Clipboard;
using mojo::Map;
using mojo::String;
namespace html_viewer {
namespace {
void CopyUint64(uint64_t* output, uint64_t input) {
*output = input;
}
void CopyWebString(blink::WebString* output, const Array<uint8_t>& input) {
// blink does not differentiate between the requested data type not existing
// and the empty string.
if (input.is_null()) {
output->reset();
} else {
*output = blink::WebString::fromUTF8(
reinterpret_cast<const char*>(&input.front()),
input.size());
}
}
void CopyURL(blink::WebURL* pageURL, const Array<uint8_t>& input) {
if (input.is_null()) {
*pageURL = blink::WebURL();
} else {
*pageURL = GURL(std::string(reinterpret_cast<const char*>(&input.front()),
input.size()));
}
}
void CopyVectorString(std::vector<std::string>* output,
const Array<String>& input) {
*output = input.To<std::vector<std::string> >();
}
template <typename T, typename U>
bool Contains(const std::vector<T>& v, const U& item) {
return std::find(v.begin(), v.end(), item) != v.end();
}
const char kMimeTypeWebkitSmartPaste[] = "chromium/x-webkit-paste";
} // namespace
WebClipboardImpl::WebClipboardImpl(mojo::ClipboardPtr clipboard)
: clipboard_(clipboard.Pass()) {
}
WebClipboardImpl::~WebClipboardImpl() {
}
uint64_t WebClipboardImpl::sequenceNumber(Buffer buffer) {
mojo::Clipboard::Type clipboard_type = ConvertBufferType(buffer);
uint64_t number = 0;
clipboard_->GetSequenceNumber(clipboard_type,
base::Bind(&CopyUint64, &number));
// Force this to be synchronous.
clipboard_.WaitForIncomingResponse();
return number;
}
bool WebClipboardImpl::isFormatAvailable(Format format, Buffer buffer) {
Clipboard::Type clipboard_type = ConvertBufferType(buffer);
std::vector<std::string> types;
clipboard_->GetAvailableMimeTypes(
clipboard_type, base::Bind(&CopyVectorString, &types));
// Force this to be synchronous.
clipboard_.WaitForIncomingResponse();
switch (format) {
case FormatPlainText:
return Contains(types, Clipboard::MIME_TYPE_TEXT);
case FormatHTML:
return Contains(types, Clipboard::MIME_TYPE_HTML);
case FormatSmartPaste:
return Contains(types, kMimeTypeWebkitSmartPaste);
case FormatBookmark:
// This might be difficult.
return false;
}
return false;
}
blink::WebVector<blink::WebString> WebClipboardImpl::readAvailableTypes(
Buffer buffer,
bool* contains_filenames) {
Clipboard::Type clipboard_type = ConvertBufferType(buffer);
std::vector<std::string> types;
clipboard_->GetAvailableMimeTypes(
clipboard_type, base::Bind(&CopyVectorString, &types));
// Force this to be synchronous.
clipboard_.WaitForIncomingResponse();
// AFAICT, every instance of setting contains_filenames is false.
*contains_filenames = false;
blink::WebVector<blink::WebString> output(types.size());
for (size_t i = 0; i < types.size(); ++i) {
output[i] = blink::WebString::fromUTF8(types[i]);
}
return output;
}
blink::WebString WebClipboardImpl::readPlainText(Buffer buffer) {
Clipboard::Type type = ConvertBufferType(buffer);
blink::WebString text;
clipboard_->ReadMimeType(type, Clipboard::MIME_TYPE_TEXT,
base::Bind(&CopyWebString, &text));
// Force this to be synchronous.
clipboard_.WaitForIncomingResponse();
return text;
}
blink::WebString WebClipboardImpl::readHTML(Buffer buffer,
blink::WebURL* page_url,
unsigned* fragment_start,
unsigned* fragment_end) {
Clipboard::Type type = ConvertBufferType(buffer);
blink::WebString html;
clipboard_->ReadMimeType(type, Clipboard::MIME_TYPE_HTML,
base::Bind(&CopyWebString, &html));
clipboard_.WaitForIncomingResponse();
*fragment_start = 0;
*fragment_end = static_cast<unsigned>(html.length());
clipboard_->ReadMimeType(type, Clipboard::MIME_TYPE_URL,
base::Bind(&CopyURL, page_url));
clipboard_.WaitForIncomingResponse();
return html;
}
blink::WebString WebClipboardImpl::readCustomData(
Buffer buffer,
const blink::WebString& mime_type) {
Clipboard::Type clipboard_type = ConvertBufferType(buffer);
blink::WebString data;
clipboard_->ReadMimeType(
clipboard_type, mime_type.utf8(), base::Bind(&CopyWebString, &data));
// Force this to be synchronous.
clipboard_.WaitForIncomingResponse();
return data;
}
void WebClipboardImpl::writePlainText(const blink::WebString& plain_text) {
Map<String, Array<uint8_t>> data;
data[Clipboard::MIME_TYPE_TEXT] = Array<uint8_t>::From(plain_text);
clipboard_->WriteClipboardData(Clipboard::TYPE_COPY_PASTE, data.Pass());
}
void WebClipboardImpl::writeHTML(const blink::WebString& html_text,
const blink::WebURL& source_url,
const blink::WebString& plain_text,
bool writeSmartPaste) {
Map<String, Array<uint8_t>> data;
data[Clipboard::MIME_TYPE_TEXT] = Array<uint8_t>::From(plain_text);
data[Clipboard::MIME_TYPE_HTML] = Array<uint8_t>::From(html_text);
data[Clipboard::MIME_TYPE_URL] = Array<uint8_t>::From(source_url.string());
if (writeSmartPaste)
data[kMimeTypeWebkitSmartPaste] = Array<uint8_t>::From(blink::WebString());
clipboard_->WriteClipboardData(Clipboard::TYPE_COPY_PASTE, data.Pass());
}
Clipboard::Type WebClipboardImpl::ConvertBufferType(Buffer buffer) {
switch (buffer) {
case BufferStandard:
return Clipboard::TYPE_COPY_PASTE;
case BufferSelection:
return Clipboard::TYPE_SELECTION;
}
NOTREACHED();
return Clipboard::TYPE_COPY_PASTE;
}
} // namespace html_viewer
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