blob: 293bd744b48a3475e7569077b54d515873903439 (
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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
// 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/basictypes.h"
#include "gfx/point.h"
#include "gfx/size.h"
#include <vector>
#if defined(OS_WIN)
typedef struct HINSTANCE__* HINSTANCE;
typedef struct HICON__* HICON;
typedef HICON HCURSOR;
#elif defined(USE_X11)
typedef struct _GdkCursor GdkCursor;
#elif defined(OS_MACOSX)
#ifdef __OBJC__
@class NSCursor;
#else
class NSCursor;
#endif
typedef UInt32 ThemeCursor;
struct Cursor;
#endif
class Pickle;
namespace WebKit {
class WebImage;
struct WebCursorInfo;
}
// 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 WebKit::WebCursorInfo& cursor_info);
~WebCursor();
// Copy constructor/assignment operator combine.
WebCursor(const WebCursor& other);
const WebCursor& operator=(const WebCursor& other);
// Conversion from/to WebCursorInfo.
void InitFromCursorInfo(const WebKit::WebCursorInfo& cursor_info);
void GetCursorInfo(WebKit::WebCursorInfo* cursor_info) const;
// 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)
// Returns a HCURSOR representing the current WebCursor instance.
// The ownership of the HCURSOR (does not apply to external cursors) remains
// with the WebCursor instance.
HCURSOR GetCursor(HINSTANCE module_handle);
// Initialize this from the given Windows cursor. The caller must ensure that
// the HCURSOR remains valid by not invoking the DestroyCursor/DestroyIcon
// APIs on it.
void InitFromExternalCursor(HCURSOR handle);
#elif defined(USE_X11)
// Return the stock GdkCursorType for this cursor, or GDK_CURSOR_IS_PIXMAP
// if it's a custom cursor. Return GDK_LAST_CURSOR to indicate that the cursor
// should be set to the system default.
// Returns an int so we don't need to include GDK headers in this header file.
int 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)
// Gets an NSCursor* for this cursor.
NSCursor* GetCursor() const;
// Initialize this from the given Carbon ThemeCursor.
void InitFromThemeCursor(ThemeCursor cursor);
// Initialize this from the given Carbon Cursor.
void InitFromCursor(const Cursor* cursor);
// Initialize this from the given Cocoa NSCursor.
void InitFromNSCursor(NSCursor* cursor);
#endif
private:
// Copies the contents of the WebCursor instance passed in.
void Copy(const WebCursor& other);
// Cleans up the WebCursor instance.
void Clear();
// Platform specific initialization goes here.
void InitPlatformData();
// Platform specific Serialization / De-serialization
bool SerializePlatformData(Pickle* pickle) const;
bool DeserializePlatformData(const Pickle* pickle, void** iter);
// Returns true if the platform data in the current cursor object
// matches that of the cursor passed in.
bool IsPlatformDataEqual(const WebCursor& other) const ;
// Copies platform specific data from the WebCursor instance passed in.
void CopyPlatformData(const WebCursor& other);
// Platform specific cleanup.
void CleanupPlatformData();
void SetCustomData(const WebKit::WebImage& image);
void ImageFromCustomData(WebKit::WebImage* image) const;
// 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_;
#if defined(OS_WIN)
// An externally generated HCURSOR. We assume that it remains valid, i.e we
// don't attempt to copy the HCURSOR.
HCURSOR external_cursor_;
// A custom cursor created from custom bitmap data by Webkit.
HCURSOR custom_cursor_;
#endif // OS_WIN
};
#endif // WEBKIT_GLUE_WEBCURSOR_H_
|
