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1 /*
2  * Copyright 2009, The Android Open Source Project
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *  * Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  *  * Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #include "config.h"
27 #include "V8CustomPositionErrorCallback.h"
28 
29 #include "Frame.h"
30 #include "V8CustomVoidCallback.h"  // For invokeCallback
31 #include "V8PositionError.h"
32 
33 namespace WebCore {
34 
V8CustomPositionErrorCallback(v8::Local<v8::Object> callback,Frame * frame)35 V8CustomPositionErrorCallback::V8CustomPositionErrorCallback(v8::Local<v8::Object> callback, Frame* frame)
36     : m_callback(v8::Persistent<v8::Object>::New(callback))
37     , m_frame(frame)
38 {
39 }
40 
~V8CustomPositionErrorCallback()41 V8CustomPositionErrorCallback::~V8CustomPositionErrorCallback()
42 {
43     m_callback.Dispose();
44 }
45 
handleEvent(PositionError * error)46 void V8CustomPositionErrorCallback::handleEvent(PositionError* error)
47 {
48     v8::HandleScope handleScope;
49 
50     v8::Handle<v8::Context> context = V8Proxy::context(m_frame.get());
51     if (context.IsEmpty())
52         return;
53 
54     v8::Context::Scope scope(context);
55 
56     v8::Handle<v8::Value> argv[] = {
57         toV8(error)
58     };
59 
60     // Protect the frame until the callback returns.
61     RefPtr<Frame> protector(m_frame);
62 
63     bool callbackReturnValue = false;
64     invokeCallback(m_callback, 1, argv, callbackReturnValue);
65 }
66 
67 } // namespace WebCore
68