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/platform/external/webkit/WebCore/bindings/v8/custom/V8HTMLOptionElementConstructor.cpp

https://github.com/aharish/totoro-gb-opensource-update2
C++ | 113 lines | 65 code | 19 blank | 29 comment | 12 complexity | e55180e7f67fa77630157eb6b3f20d71 MD5 | raw file
  1/*
  2 * Copyright (C) 2009 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#include "V8HTMLOptionElementConstructor.h"
 33
 34#include "HTMLOptionElement.h"
 35#include "Document.h"
 36#include "Frame.h"
 37#include "HTMLNames.h"
 38#include "Text.h"
 39#include "V8Binding.h"
 40#include "V8HTMLOptionElement.h"
 41#include "V8Proxy.h"
 42
 43#include <wtf/RefPtr.h>
 44
 45namespace WebCore {
 46
 47static v8::Handle<v8::Value> v8HTMLOptionElementConstructorCallback(const v8::Arguments& args)
 48{
 49    INC_STATS("DOM.HTMLOptionElement.Contructor");
 50
 51    if (!args.IsConstructCall())
 52        return throwError("DOM object constructor cannot be called as a function.");
 53
 54    Frame* frame = V8Proxy::retrieveFrameForCurrentContext();
 55    if (!frame)
 56        return throwError("Option constructor associated frame is unavailable", V8Proxy::ReferenceError);
 57
 58    Document* document = frame->document();
 59    if (!document)
 60        return throwError("Option constructor associated document is unavailable", V8Proxy::ReferenceError);
 61
 62    RefPtr<HTMLOptionElement> option = new HTMLOptionElement(HTMLNames::optionTag, document);
 63
 64    ExceptionCode ec = 0;
 65    RefPtr<Text> text = document->createTextNode("");
 66    if (args.Length() > 0) {
 67        if (!args[0]->IsUndefined()) {
 68            text->setData(toWebCoreString(args[0]), ec);
 69            if (ec)
 70                throwError(ec);
 71        }
 72
 73        option->appendChild(text.release(), ec);
 74        if (ec)
 75            throwError(ec);
 76
 77        if (args.Length() > 1) {
 78            if (!args[1]->IsUndefined())
 79                option->setValue(toWebCoreString(args[1]));
 80
 81            if (args.Length() > 2) {
 82                option->setDefaultSelected(args[2]->BooleanValue());
 83                if (args.Length() > 3)
 84                    option->setSelected(args[3]->BooleanValue());
 85            }
 86        }
 87    }
 88
 89    V8DOMWrapper::setDOMWrapper(args.Holder(), V8ClassIndex::ToInt(V8ClassIndex::OPTION), option.get());
 90    option->ref();
 91    V8DOMWrapper::setJSWrapperForDOMNode(option.get(), v8::Persistent<v8::Object>::New(args.Holder()));
 92    return args.Holder();
 93}
 94
 95v8::Persistent<v8::FunctionTemplate> V8HTMLOptionElementConstructor::GetTemplate()
 96{
 97    static v8::Persistent<v8::FunctionTemplate> cachedTemplate;
 98    if (!cachedTemplate.IsEmpty())
 99        return cachedTemplate;
100
101    v8::HandleScope scope;
102    v8::Local<v8::FunctionTemplate> result = v8::FunctionTemplate::New(v8HTMLOptionElementConstructorCallback);
103
104    v8::Local<v8::ObjectTemplate> instance = result->InstanceTemplate();
105    instance->SetInternalFieldCount(V8HTMLOptionElement::internalFieldCount);
106    result->SetClassName(v8::String::New("HTMLOptionElement"));
107    result->Inherit(V8HTMLOptionElement::GetTemplate());
108
109    cachedTemplate = v8::Persistent<v8::FunctionTemplate>::New(result);
110    return cachedTemplate;
111}
112
113} // namespace WebCore