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/*
* Copyright (C) 2009, 2016 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. 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 "JSHTMLAllCollection.h"
#include "HTMLAllCollection.h"
#include "JSNode.h"
#include "JSNodeList.h"
#include "StaticNodeList.h"
#include <runtime/IdentifierInlines.h>
using namespace JSC;
namespace WebCore {
static JSValue namedItems(ExecState& state, JSHTMLAllCollection* collection, PropertyName propertyName)
{
Vector<Ref<Element>> namedItems = collection->wrapped().namedItems(propertyNameToAtomicString(propertyName));
if (namedItems.isEmpty())
return jsUndefined();
if (namedItems.size() == 1)
return toJS(&state, collection->globalObject(), namedItems[0]);
// FIXME: HTML5 specification says this should be a HTMLCollection.
// http://www.whatwg.org/specs/web-apps/current-work/multipage/common-dom-interfaces.html#htmlallcollection
return toJS(&state, collection->globalObject(), StaticElementList::create(WTFMove(namedItems)));
}
// HTMLAllCollections are strange objects, they support both get and call.
static EncodedJSValue JSC_HOST_CALL callHTMLAllCollection(ExecState* exec)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (exec->argumentCount() < 1)
return JSValue::encode(jsUndefined());
// Do not use thisObj here. It can be the JSHTMLDocument, in the document.forms(i) case.
JSHTMLAllCollection* jsCollection = jsCast<JSHTMLAllCollection*>(exec->jsCallee());
HTMLAllCollection& collection = jsCollection->wrapped();
// Also, do we need the TypeError test here ?
if (exec->argumentCount() == 1) {
// Support for document.all(<index>) etc.
String string = exec->argument(0).toWTFString(exec);
RETURN_IF_EXCEPTION(scope, encodedJSValue());
if (std::optional<uint32_t> index = parseIndex(*string.impl()))
return JSValue::encode(toJS(exec, jsCollection->globalObject(), collection.item(index.value())));
// Support for document.images('<name>') etc.
return JSValue::encode(namedItems(*exec, jsCollection, Identifier::fromString(exec, string)));
}
// The second arg, if set, is the index of the item we want
String string = exec->argument(0).toWTFString(exec);
RETURN_IF_EXCEPTION(scope, encodedJSValue());
if (std::optional<uint32_t> index = parseIndex(*exec->argument(1).toWTFString(exec).impl())) {
if (auto* item = collection.namedItemWithIndex(string, index.value()))
return JSValue::encode(toJS(exec, jsCollection->globalObject(), *item));
}
return JSValue::encode(jsUndefined());
}
CallType JSHTMLAllCollection::getCallData(JSCell*, CallData& callData)
{
callData.native.function = callHTMLAllCollection;
return CallType::Host;
}
bool JSHTMLAllCollection::nameGetter(ExecState* state, PropertyName propertyName, JSValue& value)
{
JSValue items = namedItems(*state, this, propertyName);
if (items.isUndefined())
return false;
value = items;
return true;
}
JSValue JSHTMLAllCollection::item(ExecState& state)
{
VM& vm = state.vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (UNLIKELY(state.argumentCount() < 1))
return throwException(&state, scope, createNotEnoughArgumentsError(&state));
String argument = state.uncheckedArgument(0).toWTFString(&state);
if (std::optional<uint32_t> index = parseIndex(*argument.impl()))
return toJS(&state, globalObject(), wrapped().item(index.value()));
return namedItems(state, this, Identifier::fromString(&state, argument));
}
JSValue JSHTMLAllCollection::namedItem(ExecState& state)
{
JSValue value = namedItems(state, this, Identifier::fromString(&state, state.argument(0).toWTFString(&state)));
return value.isUndefined() ? jsNull() : value;
}
} // namespace WebCore
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