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// Copyright (c) 2006-2008 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.
#ifndef WEBKIT_GLUE_WEBCURSOR_H_
#define WEBKIT_GLUE_WEBCURSOR_H_
#include "base/gfx/point.h"
#include "base/gfx/size.h"
#include <vector>
#if defined(OS_WIN)
typedef struct HINSTANCE__* HINSTANCE;
typedef struct HICON__* HICON;
typedef HICON HCURSOR;
#endif
class Pickle;
namespace WebCore {
class Image;
class PlatformCursor;
}
// This class encapsulates a cross-platform description of a cursor. Platform
// specific methods are provided to translate the cross-platform cursor into a
// platform specific cursor. It is also possible to serialize / de-serialize a
// WebCursor.
class WebCursor {
public:
WebCursor();
explicit WebCursor(const WebCore::PlatformCursor& platform_cursor);
// Serialization / De-serialization
bool Deserialize(const Pickle* pickle, void** iter);
bool Serialize(Pickle* pickle) const;
// Returns true if GetCustomCursor should be used to allocate a platform
// specific cursor object. Otherwise GetCursor should be used.
bool IsCustom() const;
// Returns true if the current cursor object contains the same cursor as the
// cursor object passed in. If the current cursor is a custom cursor, we also
// compare the bitmaps to verify whether they are equal.
bool IsEqual(const WebCursor& other) const;
#if defined(OS_WIN)
// If the underlying cursor type is not a custom cursor, this functions uses
// the LoadCursor API to load the cursor and returns it. The caller SHOULD
// NOT pass the resulting handling to DestroyCursor. Returns NULL on error.
HCURSOR GetCursor(HINSTANCE module_handle) const;
// If the underlying cursor type is a custom cursor, this function generates
// a cursor and returns it. The responsiblity of freeing the cursor handle
// lies with the caller. Returns NULL on error.
HCURSOR GetCustomCursor() const;
// Initialize this from the given Windows cursor.
void InitFromCursor(HCURSOR handle);
#endif
private:
void SetCustomData(WebCore::Image* image);
int type_;
gfx::Point hotspot_;
gfx::Size custom_size_;
std::vector<char> custom_data_;
};
#endif // WEBKIT_GLUE_WEBCURSOR_H_
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