/*

 * Copyright (C) 2008 Apple 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:

 *

 * 1.  Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 * 2.  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.

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 "JSClipboard.h"

#include "Clipboard.h"

#include "Element.h"

#include "HTMLImageElement.h"

#include "HTMLNames.h"

#include "IntPoint.h"

#include "JSNode.h"

#include "Node.h"

#include "PlatformString.h"

#include "StringHash.h"

#include <runtime/ArrayPrototype.h>

#include <runtime/Error.h>

#include <wtf/HashSet.h>

using namespace JSC;

namespace WebCore {

using namespace HTMLNames;

JSValue JSClipboard::types(ExecState* exec) const

{

    Clipboard* clipboard = impl();

    HashSet<String> types = clipboard->types();

    if (types.isEmpty())

        return jsNull();

    MarkedArgumentBuffer list;

    HashSet<String>::const_iterator end = types.end();

    for (HashSet<String>::const_iterator it = types.begin(); it != end; ++it)

        list.append(jsString(exec, stringToUString(*it)));

    return constructArray(exec, list);

}

JSValue JSClipboard::clearData(ExecState* exec)

{

    Clipboard* clipboard = impl();

    if (!exec->argumentCount()) {

        clipboard->clearAllData();

        return jsUndefined();

    }

    if (exec->argumentCount() == 1) {

        clipboard->clearData(ustringToString(exec->argument(0).toString(exec)));

        return jsUndefined();

    }

    // FIXME: It does not match the rest of the JS bindings to throw on invalid number of arguments. 

    return throwError(exec, createSyntaxError(exec, "clearData: Invalid number of arguments"));

}

JSValue JSClipboard::getData(ExecState* exec)

{

    // FIXME: It does not match the rest of the JS bindings to throw on invalid number of arguments.

    if (exec->argumentCount() != 1)

        return throwError(exec, createSyntaxError(exec, "getData: Invalid number of arguments"));

    Clipboard* clipboard = impl();

    bool success;

    String result = clipboard->getData(ustringToString(exec->argument(0).toString(exec)), success);

    if (!success)

        return jsUndefined();

    return jsString(exec, result);

}

JSValue JSClipboard::setDragImage(ExecState* exec)

{

    Clipboard* clipboard = impl();

    if (!clipboard->isForDragging())

        return jsUndefined();

    // FIXME: It does not match the rest of the JS bindings to throw on invalid number of arguments. 

    if (exec->argumentCount() != 3)

        return throwError(exec, createSyntaxError(exec, "setDragImage: Invalid number of arguments"));

    int x = exec->argument(1).toInt32(exec);

    int y = exec->argument(2).toInt32(exec);

    // See if they passed us a node

    Node* node = toNode(exec->argument(0));

    if (!node)

        return throwTypeError(exec);

    // FIXME: This should probably be a TypeError. 

    if (!node->isElementNode())

        return throwError(exec, createSyntaxError(exec, "setDragImageFromElement: Invalid first argument"));

    if (static_cast<Element*>(node)->hasLocalName(imgTag) && !node->inDocument())

        clipboard->setDragImage(static_cast<HTMLImageElement*>(node)->cachedImage(), IntPoint(x, y));

    else

        clipboard->setDragImageElement(node, IntPoint(x, y));

    return jsUndefined();

}

} // namespace WebCore