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// Copyright 2008, Google 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:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "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 THE COPYRIGHT
// OWNER 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.
#ifndef BASE_CLIPBOARD_H__
#define BASE_CLIPBOARD_H__
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/gfx/size.h"
#include "base/shared_memory.h"
class Clipboard {
public:
Clipboard();
~Clipboard();
// Clears the clipboard. It is usually a good idea to clear the clipboard
// before writing content to the clipboard.
void Clear() const;
// Adds UNICODE and ASCII text to the clipboard.
void WriteText(const std::wstring& text) const;
// Adds HTML to the clipboard. The url parameter is optional, but especially
// useful if the HTML fragment contains relative links
void WriteHTML(const std::wstring& markup, const std::string& src_url) const;
// Adds a bookmark to the clipboard
void WriteBookmark(const std::wstring& title, const std::string& url) const;
// Adds both a bookmark and an HTML hyperlink to the clipboard. It is a
// convenience wrapper around WriteBookmark and WriteHTML.
void WriteHyperlink(const std::wstring& title, const std::string& url) const;
// Adds a bitmap to the clipboard
// This is the slowest way to copy a bitmap to the clipboard as we must first
// memcpy the pixels into GDI and the blit the bitmap to the clipboard.
// Pixel format is assumed to be 32-bit BI_RGB.
void WriteBitmap(const void* pixels, const gfx::Size& size) const;
// Adds a bitmap to the clipboard
// This function requires read and write access to the bitmap, but does not
// actually modify the shared memory region.
// Pixel format is assumed to be 32-bit BI_RGB.
void WriteBitmapFromSharedMemory(const SharedMemory& bitmap,
const gfx::Size& size) const;
// Adds a bitmap to the clipboard
// This is the fastest way to copy a bitmap to the clipboard. The HBITMAP
// may either be device-dependent or device-independent.
void WriteBitmapFromHandle(HBITMAP hbitmap, const gfx::Size& size) const;
// Used by WebKit to determine whether WebKit wrote the clipboard last
void WriteWebSmartPaste() const;
// Adds a file or group of files to the clipboard.
void WriteFile(const std::wstring& file) const;
void WriteFiles(const std::vector<std::wstring>& files) const;
// Tests whether the clipboard contains a certain format
bool IsFormatAvailable(unsigned int format) const;
// Reads UNICODE text from the clipboard, if available.
void ReadText(std::wstring* result) const;
// Reads ASCII text from the clipboard, if available.
void ReadAsciiText(std::string* result) const;
// Reads HTML from the clipboard, if available.
void ReadHTML(std::wstring* markup, std::string* src_url) const;
// Reads a bookmark from the clipboard, if available.
void ReadBookmark(std::wstring* title, std::string* url) const;
// Reads a file or group of files from the clipboard, if available, into the
// out paramter.
void ReadFile(std::wstring* file) const;
void ReadFiles(std::vector<std::wstring>* files) const;
private:
static void MarkupToHTMLClipboardFormat(const std::wstring& markup,
const std::string& src_url,
std::string* html_fragment);
static void ParseHTMLClipboardFormat(const std::string& html_fragment,
std::wstring* markup,
std::string* src_url);
static void ParseBookmarkClipboardFormat(const std::wstring& bookmark,
std::wstring* title,
std::string* url);
HWND clipboard_owner_;
DISALLOW_EVIL_CONSTRUCTORS(Clipboard);
};
#endif // BASE_CLIPBOARD_H__
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