Home | History | Annotate | Download | only in custom 
      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 "bindings/core/v8/V8HTMLAllCollection.h"
     33 
     34 #include "bindings/core/v8/V8Element.h"
     35 #include "bindings/core/v8/V8NodeList.h"
     36 #include "bindings/v8/V8Binding.h"
     37 #include "core/dom/NamedNodesCollection.h"
     38 #include "core/html/HTMLAllCollection.h"
     39 #include "core/frame/UseCounter.h"
     40 
     41 namespace WebCore {
     42 
     43 template<class CallbackInfo>
     44 static v8::Handle<v8::Value> getNamedItems(HTMLAllCollection* collection, AtomicString name, const CallbackInfo& info)
     45 {
     46     WillBeHeapVector<RefPtrWillBeMember<Element> > namedItems;
     47     collection->namedItems(name, namedItems);
     48 
     49     if (!namedItems.size())
     50         return v8Undefined();
     51 
     52     if (namedItems.size() == 1)
     53         return toV8(namedItems.at(0).release(), info.Holder(), info.GetIsolate());
     54 
     55     // FIXME: HTML5 specification says this should be a HTMLCollection.
     56     // http://www.whatwg.org/specs/web-apps/current-work/multipage/common-dom-interfaces.html#htmlallcollection
     57     return toV8(NamedNodesCollection::create(namedItems), info.Holder(), info.GetIsolate());
     58 }
     59 
     60 template<class CallbackInfo>
     61 static v8::Handle<v8::Value> getItem(HTMLAllCollection* collection, v8::Handle<v8::Value> argument, const CallbackInfo& info)
     62 {
     63     v8::Local<v8::Uint32> index = argument->ToArrayIndex();
     64     if (index.IsEmpty()) {
     65         TOSTRING_DEFAULT(V8StringResource<>, name, argument, v8::Undefined(info.GetIsolate()));
     66         v8::Handle<v8::Value> result = getNamedItems(collection, name, info);
     67 
     68         if (result.IsEmpty())
     69             return v8::Undefined(info.GetIsolate());
     70 
     71         return result;
     72     }
     73 
     74     RefPtrWillBeRawPtr<Element> result = collection->item(index->Uint32Value());
     75     return toV8(result.release(), info.Holder(), info.GetIsolate());
     76 }
     77 
     78 void V8HTMLAllCollection::itemMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
     79 {
     80     HTMLAllCollection* impl = V8HTMLAllCollection::toNative(info.Holder());
     81     v8SetReturnValue(info, getItem(impl, info[0], info));
     82 }
     83 
     84 void V8HTMLAllCollection::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
     85 {
     86     if (info.Length() < 1)
     87         return;
     88 
     89     HTMLAllCollection* impl = V8HTMLAllCollection::toNative(info.Holder());
     90     Node& ownerNode = impl->ownerNode();
     91 
     92     UseCounter::count(ownerNode.document(), UseCounter::DocumentAllLegacyCall);
     93 
     94     if (info.Length() == 1) {
     95         v8SetReturnValue(info, getItem(impl, info[0], info));
     96         return;
     97     }
     98 
     99     // If there is a second argument it is the index of the item we want.
    100     TOSTRING_VOID(V8StringResource<>, name, info[0]);
    101     v8::Local<v8::Uint32> index = info[1]->ToArrayIndex();
    102     if (index.IsEmpty())
    103         return;
    104 
    105     if (Node* node = impl->namedItemWithIndex(name, index->Uint32Value())) {
    106         v8SetReturnValueFast(info, node, impl);
    107         return;
    108     }
    109 }
    110 
    111 } // namespace WebCore
    112