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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
// Copyright (c) 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.
#include "webkit/glue/webcursor.h"
#import <AppKit/AppKit.h>
#include "base/logging.h"
#include "base/nsimage_cache_mac.h"
#include "base/scoped_cftyperef.h"
#include "third_party/WebKit/WebKit/chromium/public/WebCursorInfo.h"
#include "third_party/WebKit/WebKit/chromium/public/WebImage.h"
#include "third_party/WebKit/WebKit/chromium/public/WebSize.h"
using WebKit::WebCursorInfo;
using WebKit::WebImage;
using WebKit::WebSize;
namespace {
// TODO: This image fech can (and probably should) be serviced by the resource
// resource bundle instead of going through nsimage_cache.
NSCursor* LoadCursor(const char* name, int x, int y) {
NSString* file_name = [NSString stringWithUTF8String:name];
DCHECK(file_name);
NSImage* cursor_image = nsimage_cache::ImageNamed(file_name);
DCHECK(cursor_image);
return [[[NSCursor alloc] initWithImage:cursor_image
hotSpot:NSMakePoint(x, y)] autorelease];
}
CGImageRef CreateCGImageFromCustomData(const std::vector<char>& custom_data,
const gfx::Size& custom_size) {
scoped_cftyperef<CGColorSpaceRef> cg_color(CGColorSpaceCreateDeviceRGB());
// this is safe since we're not going to draw into the context we're creating
void* data = const_cast<char*>(&custom_data[0]);
// settings here match SetCustomData() below; keep in sync
scoped_cftyperef<CGContextRef> context(
CGBitmapContextCreate(data,
custom_size.width(),
custom_size.height(),
8,
custom_size.width()*4,
cg_color.get(),
kCGImageAlphaPremultipliedLast |
kCGBitmapByteOrder32Big));
return CGBitmapContextCreateImage(context.get());
}
NSCursor* CreateCustomCursor(const std::vector<char>& custom_data,
const gfx::Size& custom_size,
const gfx::Point& hotspot) {
// CG throws a cocoa exception if we try to create an empty image, which
// results in an infinite loop. This CHECK ensures that we crash instead.
CHECK(!custom_data.empty());
scoped_cftyperef<CGImageRef> cg_image(
CreateCGImageFromCustomData(custom_data, custom_size));
NSBitmapImageRep* ns_bitmap =
[[NSBitmapImageRep alloc] initWithCGImage:cg_image.get()];
NSImage* cursor_image = [[NSImage alloc] init];
DCHECK(cursor_image);
[cursor_image addRepresentation:ns_bitmap];
[ns_bitmap release];
NSCursor* cursor = [[NSCursor alloc] initWithImage:cursor_image
hotSpot:NSMakePoint(hotspot.x(),
hotspot.y())];
[cursor_image release];
return [cursor autorelease];
}
} // namespace
// We're matching Safari's cursor choices; see platform/mac/CursorMac.mm
NSCursor* WebCursor::GetCursor() const {
switch (type_) {
case WebCursorInfo::TypePointer:
return [NSCursor arrowCursor];
case WebCursorInfo::TypeCross:
return LoadCursor("crossHairCursor", 11, 11);
case WebCursorInfo::TypeHand:
return LoadCursor("linkCursor", 6, 1);
case WebCursorInfo::TypeIBeam:
return [NSCursor IBeamCursor];
case WebCursorInfo::TypeWait:
return LoadCursor("waitCursor", 7, 7);
case WebCursorInfo::TypeHelp:
return LoadCursor("helpCursor", 8, 8);
case WebCursorInfo::TypeEastResize:
case WebCursorInfo::TypeEastPanning:
return LoadCursor("eastResizeCursor", 14, 7);
case WebCursorInfo::TypeNorthResize:
case WebCursorInfo::TypeNorthPanning:
return LoadCursor("northResizeCursor", 7, 1);
case WebCursorInfo::TypeNorthEastResize:
case WebCursorInfo::TypeNorthEastPanning:
return LoadCursor("northEastResizeCursor", 14, 1);
case WebCursorInfo::TypeNorthWestResize:
case WebCursorInfo::TypeNorthWestPanning:
return LoadCursor("northWestResizeCursor", 0, 0);
case WebCursorInfo::TypeSouthResize:
case WebCursorInfo::TypeSouthPanning:
return LoadCursor("southResizeCursor", 7, 14);
case WebCursorInfo::TypeSouthEastResize:
case WebCursorInfo::TypeSouthEastPanning:
return LoadCursor("southEastResizeCursor", 14, 14);
case WebCursorInfo::TypeSouthWestResize:
case WebCursorInfo::TypeSouthWestPanning:
return LoadCursor("southWestResizeCursor", 1, 14);
case WebCursorInfo::TypeWestResize:
case WebCursorInfo::TypeWestPanning:
return LoadCursor("westResizeCursor", 1, 7);
case WebCursorInfo::TypeNorthSouthResize:
return LoadCursor("northSouthResizeCursor", 7, 7);
case WebCursorInfo::TypeEastWestResize:
return LoadCursor("eastWestResizeCursor", 7, 7);
case WebCursorInfo::TypeNorthEastSouthWestResize:
return LoadCursor("northEastSouthWestResizeCursor", 7, 7);
case WebCursorInfo::TypeNorthWestSouthEastResize:
return LoadCursor("northWestSouthEastResizeCursor", 7, 7);
case WebCursorInfo::TypeColumnResize:
return [NSCursor resizeLeftRightCursor];
case WebCursorInfo::TypeRowResize:
return [NSCursor resizeUpDownCursor];
case WebCursorInfo::TypeMiddlePanning:
case WebCursorInfo::TypeMove:
return LoadCursor("moveCursor", 7, 7);
case WebCursorInfo::TypeVerticalText:
return LoadCursor("verticalTextCursor", 7, 7);
case WebCursorInfo::TypeCell:
return LoadCursor("cellCursor", 7, 7);
case WebCursorInfo::TypeContextMenu:
return LoadCursor("contextMenuCursor", 3, 2);
case WebCursorInfo::TypeAlias:
return LoadCursor("aliasCursor", 11, 3);
case WebCursorInfo::TypeProgress:
return LoadCursor("progressCursor", 3, 2);
case WebCursorInfo::TypeNoDrop:
return LoadCursor("noDropCursor", 3, 1);
case WebCursorInfo::TypeCopy:
return LoadCursor("copyCursor", 3, 2);
case WebCursorInfo::TypeNone:
return LoadCursor("noneCursor", 7, 7);
case WebCursorInfo::TypeNotAllowed:
return LoadCursor("notAllowedCursor", 11, 11);
case WebCursorInfo::TypeZoomIn:
return LoadCursor("zoomInCursor", 7, 7);
case WebCursorInfo::TypeZoomOut:
return LoadCursor("zoomOutCursor", 7, 7);
case WebCursorInfo::TypeCustom:
return CreateCustomCursor(custom_data_, custom_size_, hotspot_);
}
NOTREACHED();
return nil;
}
void WebCursor::SetCustomData(const WebImage& image) {
if (image.isNull())
return;
scoped_cftyperef<CGColorSpaceRef> cg_color(
CGColorSpaceCreateDeviceRGB());
const WebSize& image_dimensions = image.size();
int image_width = image_dimensions.width;
int image_height = image_dimensions.height;
size_t size = image_height * image_width * 4;
custom_data_.resize(size);
custom_size_.set_width(image_width);
custom_size_.set_height(image_height);
// These settings match up with the code in CreateCustomCursor() above; keep
// them in sync.
// TODO(avi): test to ensure that the flags here are correct for RGBA
scoped_cftyperef<CGContextRef> context(
CGBitmapContextCreate(&custom_data_[0],
image_width,
image_height,
8,
image_width * 4,
cg_color.get(),
kCGImageAlphaPremultipliedLast |
kCGBitmapByteOrder32Big));
CGRect rect = CGRectMake(0, 0, image_width, image_height);
CGContextDrawImage(context.get(), rect, image.getCGImageRef());
}
void WebCursor::ImageFromCustomData(WebImage* image) const {
if (custom_data_.empty())
return;
scoped_cftyperef<CGImageRef> cg_image(
CreateCGImageFromCustomData(custom_data_, custom_size_));
*image = cg_image.get();
}
void WebCursor::InitPlatformData() {
return;
}
bool WebCursor::SerializePlatformData(Pickle* pickle) const {
return true;
}
bool WebCursor::DeserializePlatformData(const Pickle* pickle, void** iter) {
return true;
}
bool WebCursor::IsPlatformDataEqual(const WebCursor& other) const {
return true;
}
void WebCursor::CleanupPlatformData() {
return;
}
void WebCursor::CopyPlatformData(const WebCursor& other) {
return;
}
|
