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/*
* Copyright (C) 2007 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "ClipboardUtilitiesWin.h"
#include "KURL.h"
#include "CString.h"
#include "DocumentFragment.h"
#include "markup.h"
#include "PlatformString.h"
#include "TextEncoding.h"
#include <shlobj.h>
#include <shlwapi.h>
#include <shellapi.h>
#include <wininet.h> // for INTERNET_MAX_URL_LENGTH
#include "base/clipboard_util.h"
namespace WebCore {
HGLOBAL createGlobalData(const KURL& url, const String& title)
{
String mutableURL(url.string());
String mutableTitle(title);
SIZE_T size = mutableURL.length() + mutableTitle.length() + 2; // +1 for "\n" and +1 for null terminator
HGLOBAL cbData = ::GlobalAlloc(GPTR, size * sizeof(UChar));
if (cbData) {
PWSTR buffer = (PWSTR)::GlobalLock(cbData);
swprintf_s(buffer, size, L"%s\n%s", mutableURL.charactersWithNullTermination(), mutableTitle.charactersWithNullTermination());
::GlobalUnlock(cbData);
}
return cbData;
}
HGLOBAL createGlobalData(String str)
{
SIZE_T size = (str.length() + 1) * sizeof(UChar);
HGLOBAL cbData = ::GlobalAlloc(GPTR, size);
if (cbData) {
void* buffer = ::GlobalLock(cbData);
memcpy(buffer, str.charactersWithNullTermination(), size);
::GlobalUnlock(cbData);
}
return cbData;
}
HGLOBAL createGlobalData(CString str)
{
SIZE_T size = str.length() * sizeof(char);
HGLOBAL cbData = ::GlobalAlloc(GPTR, size + 1);
if (cbData) {
char* buffer = static_cast<char*>(::GlobalLock(cbData));
memcpy(buffer, str.data(), size);
buffer[size] = 0;
::GlobalUnlock(cbData);
}
return cbData;
}
// Documentation for the CF_HTML format is available at http://msdn.microsoft.com/workshop/networking/clipboard/htmlclipboard.asp
DeprecatedCString markupToCF_HTML(const String& markup, const String& srcURL)
{
if (!markup.length())
return DeprecatedCString();
DeprecatedCString cf_html ("Version:0.9");
DeprecatedCString startHTML ("\nStartHTML:");
DeprecatedCString endHTML ("\nEndHTML:");
DeprecatedCString startFragment ("\nStartFragment:");
DeprecatedCString endFragment ("\nEndFragment:");
DeprecatedCString sourceURL ("\nSourceURL:");
bool shouldFillSourceURL = !srcURL.isEmpty() && (srcURL != "about:blank");
if (shouldFillSourceURL)
sourceURL.append(srcURL.utf8().data());
DeprecatedCString startMarkup ("\n<HTML>\n<BODY>\n<!--StartFragment-->\n");
DeprecatedCString endMarkup ("\n<!--EndFragment-->\n</BODY>\n</HTML>");
// calculate offsets
const unsigned UINT_MAXdigits = 10; // number of digits in UINT_MAX in base 10
unsigned startHTMLOffset = cf_html.length() + startHTML.length() + endHTML.length() + startFragment.length() + endFragment.length() + (shouldFillSourceURL ? sourceURL.length() : 0) + (4*UINT_MAXdigits);
unsigned startFragmentOffset = startHTMLOffset + startMarkup.length();
CString markupUTF8 = markup.utf8();
unsigned endFragmentOffset = startFragmentOffset + markupUTF8.length();
unsigned endHTMLOffset = endFragmentOffset + endMarkup.length();
// fill in needed data
startHTML.append(String::format("%010u", startHTMLOffset).deprecatedString().utf8());
endHTML.append(String::format("%010u", endHTMLOffset).deprecatedString().utf8());
startFragment.append(String::format("%010u", startFragmentOffset).deprecatedString().utf8());
endFragment.append(String::format("%010u", endFragmentOffset).deprecatedString().utf8());
startMarkup.append(markupUTF8.data());
// create full cf_html string from the fragments
cf_html.append(startHTML);
cf_html.append(endHTML);
cf_html.append(startFragment);
cf_html.append(endFragment);
if (shouldFillSourceURL)
cf_html.append(sourceURL);
cf_html.append(startMarkup);
cf_html.append(endMarkup);
return cf_html;
}
String urlToMarkup(const KURL& url, const String& title)
{
String markup("<a href=\"");
markup.append(url.string());
markup.append("\">");
markup.append(title);
markup.append("</a>");
return markup;
}
String urlToImageMarkup(const KURL& url, const String& altStr) {
String markup("<img src=\"");
markup.append(url.string());
markup.append("\"");
if (!altStr.isEmpty()) {
markup.append(" alt=\"");
// TODO(dglazkov): escape string
markup.append(altStr);
markup.append("\"");
}
markup.append("/>");
return markup;
}
void replaceNewlinesWithWindowsStyleNewlines(String& str)
{
static const UChar Newline = '\n';
static const String WindowsNewline("\r\n");
str.replace(Newline, WindowsNewline);
}
void replaceNBSPWithSpace(String& str)
{
static const UChar NonBreakingSpaceCharacter = 0xA0;
static const UChar SpaceCharacter = ' ';
str.replace(NonBreakingSpaceCharacter, SpaceCharacter);
}
PassRefPtr<DocumentFragment> fragmentFromFilenames(Document*, const IDataObject*)
{
//FIXME: We should be able to create fragments from files
return 0;
}
bool containsFilenames(const IDataObject*)
{
//FIXME: We'll want to update this once we can produce fragments from files
return false;
}
//Convert a String containing CF_HTML formatted text to a DocumentFragment
PassRefPtr<DocumentFragment> fragmentFromCF_HTML(Document* doc, const String& cf_html)
{
// obtain baseURL if present
String srcURLStr("sourceURL:");
String srcURL;
unsigned lineStart = cf_html.find(srcURLStr, 0, false);
if (lineStart != -1) {
unsigned srcEnd = cf_html.find("\n", lineStart, false);
unsigned srcStart = lineStart+srcURLStr.length();
String rawSrcURL = cf_html.substring(srcStart, srcEnd-srcStart);
replaceNBSPWithSpace(rawSrcURL);
srcURL = rawSrcURL.stripWhiteSpace();
}
// find the markup between "<!--StartFragment -->" and "<!--EndFragment -->", accounting for browser quirks
unsigned markupStart = cf_html.find("<html", 0, false);
unsigned tagStart = cf_html.find("startfragment", markupStart, false);
unsigned fragmentStart = cf_html.find('>', tagStart) + 1;
unsigned tagEnd = cf_html.find("endfragment", fragmentStart, false);
unsigned fragmentEnd = cf_html.reverseFind('<', tagEnd);
String markup = cf_html.substring(fragmentStart, fragmentEnd - fragmentStart).stripWhiteSpace();
return createFragmentFromMarkup(doc, markup, srcURL);
}
PassRefPtr<DocumentFragment> fragmentFromHTML(Document* doc, IDataObject* data)
{
if (!doc || !data)
return 0;
STGMEDIUM store;
String html;
String srcURL;
if (SUCCEEDED(data->GetData(ClipboardUtil::GetHtmlFormat(), &store))) {
//MS HTML Format parsing
char* data = (char*)GlobalLock(store.hGlobal);
SIZE_T dataSize = ::GlobalSize(store.hGlobal);
String cf_html(UTF8Encoding().decode(data, dataSize));
GlobalUnlock(store.hGlobal);
ReleaseStgMedium(&store);
if (PassRefPtr<DocumentFragment> fragment = fragmentFromCF_HTML(doc, cf_html))
return fragment;
}
if (SUCCEEDED(data->GetData(ClipboardUtil::GetTextHtmlFormat(), &store))) {
//raw html
UChar* data = (UChar*)GlobalLock(store.hGlobal);
html = String(data);
GlobalUnlock(store.hGlobal);
ReleaseStgMedium(&store);
return createFragmentFromMarkup(doc, html, srcURL);
}
return 0;
}
bool containsHTML(IDataObject* data)
{
return SUCCEEDED(data->QueryGetData(ClipboardUtil::GetTextHtmlFormat())) ||
SUCCEEDED(data->QueryGetData(ClipboardUtil::GetHtmlFormat()));
}
} // namespace WebCore
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