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// Copyright (c) 2008 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 "config.h"
#include "webkit/glue/clipboard_conversion.h"
#include "build/build_config.h"
#include "ChromiumDataObject.h"
#include "ClipboardUtilitiesChromium.h"
#include "KURL.h"
#include "SharedBuffer.h"
#include <wtf/Vector.h>
#include "webkit/glue/glue_util.h"
namespace {
// TODO(tc): CF_HTML logic should move into the browser process since it only
// makes sense on Windows.
#if defined(OS_WIN)
void append(WTF::Vector<char>& vector, const WebCore::CString& string) {
vector.append(string.data(), string.length());
}
// Documentation for the CF_HTML format is available at
// http://msdn.microsoft.com/workshop/networking/clipboard/htmlclipboard.asp
void markupToCF_HTML(const WebCore::String& markup,
const WebCore::String& src_url,
WTF::Vector<char>& result) {
if (markup.isEmpty())
return;
#define MAX_DIGITS 10
#define MAKE_NUMBER_FORMAT_1(digits) MAKE_NUMBER_FORMAT_2(digits)
#define MAKE_NUMBER_FORMAT_2(digits) "%0" #digits "u"
#define NUMBER_FORMAT MAKE_NUMBER_FORMAT_1(MAX_DIGITS)
static const char* header = "Version:0.9\n"
"StartHTML:" NUMBER_FORMAT "\n"
"EndHTML:" NUMBER_FORMAT "\n"
"StartFragment:" NUMBER_FORMAT "\n"
"EndFragment:" NUMBER_FORMAT "\n";
static const char* source_url_prefix = "SourceURL:";
static const char* start_markup = "<HTML>\n<BODY>\n<!--StartFragment-->\n";
static const char* end_markup = "\n<!--EndFragment-->\n</BODY>\n</HTML>";
WebCore::CString source_url_utf8 = (src_url == WebCore::blankURL()) ?
"" : src_url.utf8();
WebCore::CString markup_utf8 = markup.utf8();
// calculate offsets
size_t start_html_offset = strlen(header) - strlen(NUMBER_FORMAT) * 4 +
MAX_DIGITS * 4;
if (source_url_utf8.length()) {
start_html_offset += strlen(source_url_prefix) +
source_url_utf8.length() + 1;
}
size_t start_fragment_offset = start_html_offset + strlen(start_markup);
size_t end_fragment_offset = start_fragment_offset + markup_utf8.length();
size_t end_html_offset = end_fragment_offset + strlen(end_markup);
append(result, WebCore::String::format(header, start_html_offset,
end_html_offset, start_fragment_offset, end_fragment_offset).utf8());
if (source_url_utf8.length()) {
append(result, source_url_prefix);
append(result, source_url_utf8);
result.append('\n');
}
append(result, start_markup);
append(result, markup_utf8);
append(result, end_markup);
#undef MAX_DIGITS
#undef MAKE_NUMBER_FORMAT_1
#undef MAKE_NUMBER_FORMAT_2
#undef NUMBER_FORMAT
}
#endif
std::wstring HTMLToCFHTML(const WebCore::String& html,
const WebCore::KURL& url) {
#if defined(OS_WIN)
Vector<char> cf_html_data;
markupToCF_HTML(html, url, cf_html_data);
WebCore::String cf_html_str(cf_html_data.data(), cf_html_data.size());
return webkit_glue::StringToStdWString(cf_html_str);
#else
return std::wstring();
#endif
}
WebCore::String CFHTMLToHTML(const std::wstring& cf_html_wstr) {
#if defined(OS_WIN)
WebCore::String cf_html = webkit_glue::StdWStringToString(cf_html_wstr);
// Obtain baseURL if present.
WebCore::String src_url_str("sourceURL:");
WebCore::String src_url;
unsigned int line_start = cf_html.find(src_url_str, 0, false);
if (line_start != -1) {
unsigned int src_end = cf_html.find("\n", line_start, false);
unsigned int src_start = line_start + src_url_str.length();
WebCore::String raw_src_url = cf_html.substring(src_start, src_end - src_start);
replaceNBSPWithSpace(raw_src_url);
src_url = raw_src_url.stripWhiteSpace();
}
// find the markup between "<!--StartFragment -->" and "<!--EndFragment
// -->", accounting for browser quirks
unsigned markup_start = cf_html.find("<html", 0, false);
unsigned tag_start = cf_html.find("startfragment", markup_start, false);
unsigned fragment_start = cf_html.find('>', tag_start) + 1;
unsigned tag_end = cf_html.find("endfragment", fragment_start, false);
unsigned fragment_end = cf_html.reverseFind('<', tag_end);
WebCore::String markup = cf_html.substring(fragment_start,
fragment_end - fragment_start).stripWhiteSpace();
return markup;
#else
return WebCore::String();
#endif
}
} // namespace
namespace webkit_glue {
WebDropData ChromiumDataObjectToWebDropData(
WebCore::ChromiumDataObject* data_object) {
WebDropData drop_data;
drop_data.url = KURLToGURL(data_object->url);
drop_data.url_title = StringToStdWString(data_object->url_title);
for (size_t i = 0; i < data_object->filenames.size(); ++i) {
drop_data.filenames.push_back(StringToStdWString(
data_object->filenames[i]));
}
drop_data.plain_text = StringToStdWString(data_object->plain_text);
drop_data.cf_html = HTMLToCFHTML(data_object->text_html, data_object->url);
drop_data.text_html = StringToStdWString(data_object->text_html);
drop_data.file_description_filename = StringToStdWString(
data_object->file_content_filename);
if (data_object->file_content) {
drop_data.file_contents.assign(data_object->file_content->data(),
data_object->file_content->size());
}
return drop_data;
}
PassRefPtr<WebCore::ChromiumDataObject> WebDropDataToChromiumDataObject(
const WebDropData& drop_data) {
RefPtr<WebCore::ChromiumDataObject> data_object =
WebCore::ChromiumDataObject::create();
data_object->url = GURLToKURL(drop_data.url);
data_object->url_title = StdWStringToString(drop_data.url_title);
for (size_t i = 0; i < drop_data.filenames.size(); ++i) {
data_object->filenames.append(StdWStringToString(drop_data.filenames[i]));
}
data_object->plain_text = StdWStringToString(drop_data.plain_text);
data_object->text_html = StdWStringToString(drop_data.text_html);
if (data_object->text_html.isEmpty()) {
// Use CF_HTML only if there's no text/html data.
data_object->text_html = CFHTMLToHTML(drop_data.cf_html);
}
data_object->file_content_filename = StdWStringToString(
drop_data.file_description_filename);
if (!drop_data.file_contents.empty()) {
data_object->file_content =
WebCore::SharedBuffer::create(drop_data.file_contents.data(),
drop_data.file_contents.size());
}
return data_object;
}
} // namespace webkit_glue
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