Source/bindings/v8/custom/V8CustomSQLStatementErrorCallback.cpp

/*
 * Copyright (c) 2009, 2012 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
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#include "config.h"
#include "V8SQLStatementErrorCallback.h"

#include "V8SQLError.h"
#include "V8SQLTransaction.h"
#include "bindings/v8/ScriptController.h"
#include "core/dom/ExecutionContext.h"
#include "wtf/Assertions.h"

namespace WebCore {

bool V8SQLStatementErrorCallback::handleEvent(SQLTransaction* transaction, SQLError* error)
{
    if (!canInvokeCallback())
        return true;

    v8::Isolate* isolate = v8::Isolate::GetCurrent();
    v8::HandleScope handleScope(isolate);

    v8::Handle<v8::Context> v8Context = toV8Context(executionContext(), m_world.get());
    if (v8Context.IsEmpty())
        return true;

    v8::Context::Scope scope(v8Context);

    v8::Handle<v8::Value> transactionHandle = toV8(transaction, v8::Handle<v8::Object>(), v8Context->GetIsolate());
    v8::Handle<v8::Value> errorHandle = toV8(error, v8::Handle<v8::Object>(), isolate);
    if (transactionHandle.IsEmpty() || errorHandle.IsEmpty()) {
        if (!isScriptControllerTerminating())
            CRASH();
        return true;
    }

    v8::Handle<v8::Value> argv[] = {
        transactionHandle,
        errorHandle
    };

    v8::TryCatch exceptionCatcher;
    exceptionCatcher.SetVerbose(true);

    v8::Handle<v8::Value> result = ScriptController::callFunction(executionContext(), m_callback.newLocal(isolate), isolate->GetCurrentContext()->Global(), 2, argv, isolate);

    // FIXME: This comment doesn't make much sense given what the code is actually doing.
    //
    // Step 6: If the error callback returns false, then move on to the next
    // statement, if any, or onto the next overall step otherwise. Otherwise,
    // the error callback did not return false, or there was no error callback.
    // Jump to the last step in the overall steps.
    return exceptionCatcher.HasCaught() || (!result.IsEmpty() && result->BooleanValue());
}

} // namespace WebCore