| /* |
| * Copyright (C) 2008, 2009 Google 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "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 THE COPYRIGHT |
| * OWNER 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 "V8NodeFilterCondition.h" |
| |
| #include "Node.h" |
| #include "NodeFilter.h" |
| #include "ScriptState.h" |
| #include "V8Node.h" |
| #include "V8Proxy.h" |
| |
| #include <wtf/OwnArrayPtr.h> |
| |
| namespace WebCore { |
| |
| V8NodeFilterCondition::V8NodeFilterCondition(v8::Handle<v8::Value> filter) |
| : m_filter(v8::Persistent<v8::Value>::New(filter)) |
| { |
| #ifndef NDEBUG |
| V8GCController::registerGlobalHandle(NODE_FILTER, this, m_filter); |
| #endif |
| } |
| |
| V8NodeFilterCondition::~V8NodeFilterCondition() |
| { |
| #ifndef NDEBUG |
| V8GCController::unregisterGlobalHandle(this, m_filter); |
| #endif |
| m_filter.Dispose(); |
| m_filter.Clear(); |
| } |
| |
| short V8NodeFilterCondition::acceptNode(ScriptState* state, Node* node) const |
| { |
| ASSERT(v8::Context::InContext()); |
| |
| if (!m_filter->IsObject()) |
| return NodeFilter::FILTER_ACCEPT; |
| |
| v8::TryCatch exceptionCatcher; |
| |
| v8::Handle<v8::Function> callback; |
| if (m_filter->IsFunction()) |
| callback = v8::Handle<v8::Function>::Cast(m_filter); |
| else { |
| v8::Local<v8::Value> value = m_filter->ToObject()->Get(v8::String::New("acceptNode")); |
| if (!value->IsFunction()) { |
| V8Proxy::throwError(V8Proxy::TypeError, "NodeFilter object does not have an acceptNode function"); |
| return NodeFilter::FILTER_REJECT; |
| } |
| callback = v8::Handle<v8::Function>::Cast(value); |
| } |
| |
| v8::Handle<v8::Object> object = v8::Context::GetCurrent()->Global(); |
| OwnArrayPtr<v8::Handle<v8::Value> > args = adoptArrayPtr(new v8::Handle<v8::Value>[1]); |
| args[0] = toV8(node); |
| |
| v8::Handle<v8::Value> result = V8Proxy::callFunctionWithoutFrame(callback, object, 1, args.get()); |
| |
| if (exceptionCatcher.HasCaught()) { |
| state->setException(exceptionCatcher.Exception()); |
| return NodeFilter::FILTER_REJECT; |
| } |
| |
| ASSERT(!result.IsEmpty()); |
| |
| return result->Int32Value(); |
| } |
| |
| } // namespace WebCore |