1/*
2 * Copyright (c) 2009, 2012 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32
33#include "bindings/core/v8/ScriptController.h"
34#include "bindings/modules/v8/V8SQLError.h"
35#include "bindings/modules/v8/V8SQLStatementErrorCallback.h"
36#include "bindings/modules/v8/V8SQLTransaction.h"
37#include "core/dom/ExecutionContext.h"
38#include "wtf/Assertions.h"
39
40namespace blink {
41
42bool V8SQLStatementErrorCallback::handleEvent(SQLTransaction* transaction, SQLError* error)
43{
44    if (!canInvokeCallback())
45        return true;
46
47    v8::Isolate* isolate = m_scriptState->isolate();
48    if (m_scriptState->contextIsValid())
49        return true;
50
51    ScriptState::Scope scope(m_scriptState.get());
52
53    v8::Handle<v8::Value> transactionHandle = toV8(transaction, m_scriptState->context()->Global(), isolate);
54    v8::Handle<v8::Value> errorHandle = toV8(error, m_scriptState->context()->Global(), isolate);
55    if (transactionHandle.IsEmpty() || errorHandle.IsEmpty()) {
56        if (!isScriptControllerTerminating())
57            CRASH();
58        return true;
59    }
60
61    ASSERT(transactionHandle->IsObject());
62
63    v8::Handle<v8::Value> argv[] = {
64        transactionHandle,
65        errorHandle
66    };
67
68    v8::TryCatch exceptionCatcher;
69    exceptionCatcher.SetVerbose(true);
70
71    v8::Handle<v8::Value> result = ScriptController::callFunction(executionContext(), m_callback.newLocal(isolate), m_scriptState->context()->Global(), WTF_ARRAY_LENGTH(argv), argv, isolate);
72
73    // FIXME: This comment doesn't make much sense given what the code is actually doing.
74    //
75    // Step 6: If the error callback returns false, then move on to the next
76    // statement, if any, or onto the next overall step otherwise. Otherwise,
77    // the error callback did not return false, or there was no error callback.
78    // Jump to the last step in the overall steps.
79    return exceptionCatcher.HasCaught() || (!result.IsEmpty() && result->BooleanValue());
80}
81
82} // namespace blink
83