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      1 /*
      2  * Copyright (C) 2008 Apple 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
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "core/storage/Storage.h"
     28 
     29 #include "bindings/v8/ExceptionState.h"
     30 #include "wtf/PassOwnPtr.h"
     31 #include <wtf/PassRefPtr.h>
     32 #include <wtf/text/WTFString.h>
     33 
     34 namespace WebCore {
     35 
     36 PassRefPtr<Storage> Storage::create(Frame* frame, PassOwnPtr<StorageArea> storageArea)
     37 {
     38     return adoptRef(new Storage(frame, storageArea));
     39 }
     40 
     41 Storage::Storage(Frame* frame, PassOwnPtr<StorageArea> storageArea)
     42     : DOMWindowProperty(frame)
     43     , m_storageArea(storageArea)
     44 {
     45     ASSERT(m_frame);
     46     ASSERT(m_storageArea);
     47     ScriptWrappable::init(this);
     48 }
     49 
     50 Storage::~Storage()
     51 {
     52 }
     53 
     54 String Storage::anonymousIndexedGetter(unsigned index, ExceptionState& es)
     55 {
     56     return anonymousNamedGetter(String::number(index), es);
     57 }
     58 
     59 String Storage::anonymousNamedGetter(const AtomicString& name, ExceptionState& es)
     60 {
     61     bool found = contains(name, es);
     62     if (es.hadException() || !found)
     63         return String();
     64     String result = getItem(name, es);
     65     if (es.hadException())
     66         return String();
     67     return result;
     68 }
     69 
     70 bool Storage::anonymousNamedSetter(const AtomicString& name, const AtomicString& value, ExceptionState& es)
     71 {
     72     setItem(name, value, es);
     73     return true;
     74 }
     75 
     76 bool Storage::anonymousIndexedSetter(unsigned index, const AtomicString& value, ExceptionState& es)
     77 {
     78     return anonymousNamedSetter(String::number(index), value, es);
     79 }
     80 
     81 bool Storage::anonymousNamedDeleter(const AtomicString& name, ExceptionState& es)
     82 {
     83     bool found = contains(name, es);
     84     if (!found || es.hadException())
     85         return false;
     86     removeItem(name, es);
     87     if (es.hadException())
     88         return false;
     89     return true;
     90 }
     91 
     92 bool Storage::anonymousIndexedDeleter(unsigned index, ExceptionState& es)
     93 {
     94     return anonymousNamedDeleter(String::number(index), es);
     95 }
     96 
     97 void Storage::namedPropertyEnumerator(Vector<String>& names, ExceptionState& es)
     98 {
     99     unsigned length = this->length(es);
    100     if (es.hadException())
    101         return;
    102     names.resize(length);
    103     for (unsigned i = 0; i < length; ++i) {
    104         String key = this->key(i, es);
    105         if (es.hadException())
    106             return;
    107         ASSERT(!key.isNull());
    108         String val = getItem(key, es);
    109         if (es.hadException())
    110             return;
    111         names[i] = key;
    112     }
    113 }
    114 
    115 bool Storage::namedPropertyQuery(const AtomicString& name, ExceptionState& es)
    116 {
    117     if (name == "length")
    118         return false;
    119     bool found = contains(name, es);
    120     if (es.hadException() || !found)
    121         return false;
    122     return true;
    123 }
    124 
    125 }
    126