blob: a64df6c2690e38e459b41668dfce132ec91b18d7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
// 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;
#elif defined(OS_LINUX)
// GdkCursorType is an enum, which we can't forward-declare. :(
#include <gdk/gdkcursor.h>
#elif defined(OS_MACOSX)
#ifdef __OBJC__
@class NSCursor;
#else
class NSCursor;
#endif
#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);
#elif defined(OS_LINUX)
// Return the stock GdkCursorType for this cursor, or GDK_CURSOR_IS_PIXMAP
// if it's a custom cursor.
GdkCursorType GetCursorType() const;
// Return a new GdkCursor* for this cursor. Only valid if GetCursorType
// returns GDK_CURSOR_IS_PIXMAP.
GdkCursor* GetCustomCursor() const;
#elif defined(OS_MACOSX)
NSCursor* GetCursor() const;
#endif
private:
void SetCustomData(WebCore::Image* image);
// WebCore::PlatformCursor type.
int type_;
gfx::Point hotspot_;
// Custom cursor data, as 32-bit RGBA.
// Platform-inspecific because it can be serialized.
gfx::Size custom_size_;
std::vector<char> custom_data_;
};
#endif // WEBKIT_GLUE_WEBCURSOR_H_
|
