| /* |
| * Copyright (C) 2001 Peter Kelly (pmk@post.com) |
| * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "config.h" |
| #include "JSNodeFilterCondition.h" |
| |
| #include "JSNode.h" |
| #include "JSNodeFilter.h" |
| #include "NodeFilter.h" |
| #include <runtime/JSLock.h> |
| |
| namespace WebCore { |
| |
| using namespace JSC; |
| |
| ASSERT_CLASS_FITS_IN_CELL(JSNodeFilterCondition); |
| |
| JSNodeFilterCondition::JSNodeFilterCondition(JSValue filter) |
| : m_filter(filter) |
| { |
| } |
| |
| void JSNodeFilterCondition::markAggregate(MarkStack& markStack) |
| { |
| markStack.append(m_filter); |
| } |
| |
| short JSNodeFilterCondition::acceptNode(JSC::ExecState* exec, Node* filterNode) const |
| { |
| JSLock lock(SilenceAssertionsOnly); |
| |
| CallData callData; |
| CallType callType = m_filter.getCallData(callData); |
| if (callType == CallTypeNone) |
| return NodeFilter::FILTER_ACCEPT; |
| |
| // The exec argument here should only be null if this was called from a |
| // non-JavaScript language, and this is a JavaScript filter, and the document |
| // in question is not associated with the frame. In that case, we're going to |
| // behave incorrectly, and just reject nodes instead of calling the filter function. |
| // To fix that we'd need to come up with a way to find a suitable JavaScript |
| // execution context for the filter function to run in. |
| if (!exec) |
| return NodeFilter::FILTER_REJECT; |
| |
| MarkedArgumentBuffer args; |
| // FIXME: The node should have the prototype chain that came from its document, not |
| // whatever prototype chain might be on the window this filter came from. Bug 27662 |
| args.append(toJS(exec, deprecatedGlobalObjectForPrototype(exec), filterNode)); |
| if (exec->hadException()) |
| return NodeFilter::FILTER_REJECT; |
| |
| JSValue result = callInWorld(exec, m_filter, callType, callData, m_filter, args, currentWorld(exec)); |
| if (exec->hadException()) |
| return NodeFilter::FILTER_REJECT; |
| |
| int intResult = result.toInt32(exec); |
| if (exec->hadException()) |
| return NodeFilter::FILTER_REJECT; |
| |
| return intResult; |
| } |
| |
| } // namespace WebCore |