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
|
/*
* Copyright (C) 2008 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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.
*/
#include "config.h"
#include "JSGeolocation.h"
#include "DOMWindow.h"
#include "ExceptionCode.h"
#include "Geolocation.h"
#include "GeolocationService.h"
#include "JSCustomPositionCallback.h"
#include "JSCustomPositionErrorCallback.h"
#include "JSDOMWindow.h"
#include "PositionOptions.h"
#include <runtime/InternalFunction.h>
using namespace JSC;
using namespace std;
namespace WebCore {
static PassRefPtr<PositionCallback> createPositionCallback(ExecState* exec, JSValue value)
{
// The spec specifies 'FunctionOnly' for this object.
if (!value.inherits(&InternalFunction::info)) {
setDOMException(exec, TYPE_MISMATCH_ERR);
return 0;
}
JSObject* object = asObject(value);
Frame* frame = toJSDOMWindow(exec->lexicalGlobalObject())->impl()->frame();
return JSCustomPositionCallback::create(object, frame);
}
static PassRefPtr<PositionErrorCallback> createPositionErrorCallback(ExecState* exec, JSValue value)
{
// Argument is optional (hence undefined is allowed), and null is allowed.
if (value.isUndefinedOrNull())
return 0;
// The spec specifies 'FunctionOnly' for this object.
if (!value.inherits(&InternalFunction::info)) {
setDOMException(exec, TYPE_MISMATCH_ERR);
return 0;
}
JSObject* object = asObject(value);
Frame* frame = toJSDOMWindow(exec->lexicalGlobalObject())->impl()->frame();
return JSCustomPositionErrorCallback::create(object, frame);
}
static PassRefPtr<PositionOptions> createPositionOptions(ExecState* exec, JSValue value)
{
// Create default options.
RefPtr<PositionOptions> options = PositionOptions::create();
// Argument is optional (hence undefined is allowed), and null is allowed.
if (value.isUndefinedOrNull()) {
// Use default options.
return options.release();
}
// Given the above test, this will always yield an object.
JSObject* object = value.toObject(exec);
// For all three properties, we apply the following ...
// - If the getter or the property's valueOf method throws an exception, we
// quit so as not to risk overwriting the exception.
// - If the value is absent or undefined, we don't override the default.
JSValue enableHighAccuracyValue = object->get(exec, Identifier(exec, "enableHighAccuracy"));
if (exec->hadException())
return 0;
if (!enableHighAccuracyValue.isUndefined()) {
options->setEnableHighAccuracy(enableHighAccuracyValue.toBoolean(exec));
if (exec->hadException())
return 0;
}
JSValue timeoutValue = object->get(exec, Identifier(exec, "timeout"));
if (exec->hadException())
return 0;
if (!timeoutValue.isUndefined()) {
// Wrap to int32 and force non-negative to match behavior of window.setTimeout.
options->setTimeout(max(0, timeoutValue.toInt32(exec)));
if (exec->hadException())
return 0;
}
JSValue maximumAgeValue = object->get(exec, Identifier(exec, "maximumAge"));
if (exec->hadException())
return 0;
if (!maximumAgeValue.isUndefined()) {
// Wrap to int32 and force non-negative to match behavior of window.setTimeout.
options->setMaximumAge(max(0, maximumAgeValue.toInt32(exec)));
if (exec->hadException())
return 0;
}
return options.release();
}
JSValue JSGeolocation::getCurrentPosition(ExecState* exec, const ArgList& args)
{
// Arguments: PositionCallback, (optional)PositionErrorCallback, (optional)PositionOptions
RefPtr<PositionCallback> positionCallback = createPositionCallback(exec, args.at(0));
if (exec->hadException())
return jsUndefined();
ASSERT(positionCallback);
RefPtr<PositionErrorCallback> positionErrorCallback = createPositionErrorCallback(exec, args.at(1));
if (exec->hadException())
return jsUndefined();
RefPtr<PositionOptions> positionOptions = createPositionOptions(exec, args.at(2));
if (exec->hadException())
return jsUndefined();
ASSERT(positionOptions);
m_impl->getCurrentPosition(positionCallback.release(), positionErrorCallback.release(), positionOptions.release());
return jsUndefined();
}
JSValue JSGeolocation::watchPosition(ExecState* exec, const ArgList& args)
{
// Arguments: PositionCallback, (optional)PositionErrorCallback, (optional)PositionOptions
RefPtr<PositionCallback> positionCallback = createPositionCallback(exec, args.at(0));
if (exec->hadException())
return jsUndefined();
ASSERT(positionCallback);
RefPtr<PositionErrorCallback> positionErrorCallback = createPositionErrorCallback(exec, args.at(1));
if (exec->hadException())
return jsUndefined();
RefPtr<PositionOptions> positionOptions = createPositionOptions(exec, args.at(2));
if (exec->hadException())
return jsUndefined();
ASSERT(positionOptions);
int watchID = m_impl->watchPosition(positionCallback.release(), positionErrorCallback.release(), positionOptions.release());
return jsNumber(exec, watchID);
}
} // namespace WebCore
|