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// Copyright (c) 2011 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 "webkit/glue/webclipboard_impl.h"
#include "base/logging.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "googleurl/src/gurl.h"
#include "net/base/escape.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebData.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebImage.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebSize.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebString.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURL.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebVector.h"
#include "ui/base/clipboard/clipboard.h"
#include "webkit/glue/scoped_clipboard_writer_glue.h"
#include "webkit/glue/webkit_glue.h"
#if WEBKIT_USING_CG
#include "skia/ext/skia_utils_mac.h"
#endif
using WebKit::WebClipboard;
using WebKit::WebData;
using WebKit::WebImage;
using WebKit::WebString;
using WebKit::WebURL;
using WebKit::WebVector;
namespace webkit_glue {
// Static
std::string WebClipboardImpl::URLToMarkup(const WebURL& url,
const WebString& title) {
std::string markup("<a href=\"");
markup.append(url.spec());
markup.append("\">");
// TODO(darin): HTML escape this
markup.append(EscapeForHTML(UTF16ToUTF8(title)));
markup.append("</a>");
return markup;
}
// Static
std::string WebClipboardImpl::URLToImageMarkup(const WebURL& url,
const WebString& title) {
std::string markup("<img src=\"");
markup.append(url.spec());
markup.append("\"");
if (!title.isEmpty()) {
markup.append(" alt=\"");
markup.append(EscapeForHTML(UTF16ToUTF8(title)));
markup.append("\"");
}
markup.append("/>");
return markup;
}
WebClipboardImpl::~WebClipboardImpl() {
}
bool WebClipboardImpl::isFormatAvailable(Format format, Buffer buffer) {
ui::Clipboard::FormatType format_type;
ui::Clipboard::Buffer buffer_type;
if (!ConvertBufferType(buffer, &buffer_type))
return false;
switch (format) {
case FormatPlainText:
return ClipboardIsFormatAvailable(ui::Clipboard::GetPlainTextFormatType(),
buffer_type) ||
ClipboardIsFormatAvailable(ui::Clipboard::GetPlainTextWFormatType(),
buffer_type);
case FormatHTML:
format_type = ui::Clipboard::GetHtmlFormatType();
break;
case FormatSmartPaste:
format_type = ui::Clipboard::GetWebKitSmartPasteFormatType();
break;
case FormatBookmark:
#if defined(OS_WIN) || defined(OS_MACOSX)
format_type = ui::Clipboard::GetUrlWFormatType();
break;
#endif
default:
NOTREACHED();
return false;
}
return ClipboardIsFormatAvailable(format_type, buffer_type);
}
WebString WebClipboardImpl::readPlainText(Buffer buffer) {
ui::Clipboard::Buffer buffer_type;
if (!ConvertBufferType(buffer, &buffer_type))
return WebString();
if (ClipboardIsFormatAvailable(ui::Clipboard::GetPlainTextWFormatType(),
buffer_type)) {
string16 text;
ClipboardReadText(buffer_type, &text);
if (!text.empty())
return text;
}
if (ClipboardIsFormatAvailable(ui::Clipboard::GetPlainTextFormatType(),
buffer_type)) {
std::string text;
ClipboardReadAsciiText(buffer_type, &text);
if (!text.empty())
return ASCIIToUTF16(text);
}
return WebString();
}
WebString WebClipboardImpl::readHTML(Buffer buffer, WebURL* source_url) {
ui::Clipboard::Buffer buffer_type;
if (!ConvertBufferType(buffer, &buffer_type))
return WebString();
string16 html_stdstr;
GURL gurl;
ClipboardReadHTML(buffer_type, &html_stdstr, &gurl);
*source_url = gurl;
return html_stdstr;
}
WebData WebClipboardImpl::readImage(Buffer buffer) {
ui::Clipboard::Buffer buffer_type;
if (!ConvertBufferType(buffer, &buffer_type))
return WebData();
std::string png_data;
ClipboardReadImage(buffer_type, &png_data);
return WebData(png_data);
}
void WebClipboardImpl::writeHTML(
const WebString& html_text, const WebURL& source_url,
const WebString& plain_text, bool write_smart_paste) {
ScopedClipboardWriterGlue scw(ClipboardGetClipboard());
scw.WriteHTML(html_text, source_url.spec());
scw.WriteText(plain_text);
if (write_smart_paste)
scw.WriteWebSmartPaste();
}
void WebClipboardImpl::writePlainText(const WebString& plain_text) {
ScopedClipboardWriterGlue scw(ClipboardGetClipboard());
scw.WriteText(plain_text);
}
void WebClipboardImpl::writeURL(const WebURL& url, const WebString& title) {
ScopedClipboardWriterGlue scw(ClipboardGetClipboard());
scw.WriteBookmark(title, url.spec());
scw.WriteHTML(UTF8ToUTF16(URLToMarkup(url, title)), "");
scw.WriteText(UTF8ToUTF16(std::string(url.spec())));
}
void WebClipboardImpl::writeImage(
const WebImage& image, const WebURL& url, const WebString& title) {
ScopedClipboardWriterGlue scw(ClipboardGetClipboard());
if (!image.isNull()) {
#if WEBKIT_USING_SKIA
const SkBitmap& bitmap = image.getSkBitmap();
#elif WEBKIT_USING_CG
const SkBitmap& bitmap = gfx::CGImageToSkBitmap(image.getCGImageRef());
#endif
SkAutoLockPixels locked(bitmap);
scw.WriteBitmapFromPixels(bitmap.getPixels(), image.size());
}
// When writing the image, we also write the image markup so that pasting
// into rich text editors, such as Gmail, reveals the image. We also don't
// want to call writeText(), since some applications (WordPad) don't pick the
// image if there is also a text format on the clipboard.
if (!url.isEmpty()) {
scw.WriteBookmark(title, url.spec());
scw.WriteHTML(UTF8ToUTF16(URLToImageMarkup(url, title)), "");
}
}
void WebClipboardImpl::writeData(const WebString& type,
const WebString& data,
const WebString& metadata) {
// TODO(dcheng): Implement this stub.
}
WebVector<WebString> WebClipboardImpl::readAvailableTypes(
Buffer buffer, bool* contains_filenames) {
ui::Clipboard::Buffer buffer_type;
std::vector<string16> types;
if (ConvertBufferType(buffer, &buffer_type)) {
ClipboardReadAvailableTypes(buffer_type, &types, contains_filenames);
}
return types;
}
bool WebClipboardImpl::readData(Buffer buffer, const WebString& type,
WebString* data, WebString* metadata) {
ui::Clipboard::Buffer buffer_type;
if (!ConvertBufferType(buffer, &buffer_type))
return false;
string16 data_out;
string16 metadata_out;
bool result = ClipboardReadData(buffer_type, type, &data_out, &metadata_out);
if (result) {
*data = data_out;
*metadata = metadata_out;
}
return result;
}
WebVector<WebString> WebClipboardImpl::readFilenames(Buffer buffer) {
ui::Clipboard::Buffer buffer_type;
std::vector<string16> filenames;
if (ConvertBufferType(buffer, &buffer_type)) {
ClipboardReadFilenames(buffer_type, &filenames);
}
return filenames;
}
bool WebClipboardImpl::ConvertBufferType(Buffer buffer,
ui::Clipboard::Buffer* result) {
switch (buffer) {
case BufferStandard:
*result = ui::Clipboard::BUFFER_STANDARD;
break;
case BufferDrag:
*result = ui::Clipboard::BUFFER_DRAG;
case BufferSelection:
#if defined(USE_X11)
*result = ui::Clipboard::BUFFER_SELECTION;
break;
#endif
default:
NOTREACHED();
return false;
}
return true;
}
} // namespace webkit_glue
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