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      1 /*
      2  * Copyright (C) 2010 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
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "modules/indexeddb/IDBKeyRange.h"
     28 
     29 #include "bindings/v8/DOMRequestState.h"
     30 #include "bindings/v8/ExceptionState.h"
     31 #include "bindings/v8/IDBBindingUtilities.h"
     32 #include "core/dom/ExceptionCode.h"
     33 #include "modules/indexeddb/IDBDatabase.h"
     34 
     35 namespace WebCore {
     36 
     37 PassRefPtr<IDBKeyRange> IDBKeyRange::fromScriptValue(ExecutionContext* context, const ScriptValue& value, ExceptionState& exceptionState)
     38 {
     39     DOMRequestState requestState(context);
     40     if (value.isUndefined() || value.isNull())
     41         return 0;
     42 
     43     RefPtr<IDBKeyRange> range = scriptValueToIDBKeyRange(&requestState, value);
     44     if (range)
     45         return range.release();
     46 
     47     RefPtr<IDBKey> key = scriptValueToIDBKey(&requestState, value);
     48     if (!key || !key->isValid()) {
     49         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
     50         return 0;
     51     }
     52 
     53     return adoptRef(new IDBKeyRange(key, key, LowerBoundClosed, UpperBoundClosed));
     54 }
     55 
     56 IDBKeyRange::IDBKeyRange(PassRefPtr<IDBKey> lower, PassRefPtr<IDBKey> upper, LowerBoundType lowerType, UpperBoundType upperType)
     57     : m_lower(lower)
     58     , m_upper(upper)
     59     , m_lowerType(lowerType)
     60     , m_upperType(upperType)
     61 {
     62     ScriptWrappable::init(this);
     63 }
     64 
     65 ScriptValue IDBKeyRange::lowerValue(ExecutionContext* context) const
     66 {
     67     DOMRequestState requestState(context);
     68     return idbKeyToScriptValue(&requestState, m_lower);
     69 }
     70 
     71 ScriptValue IDBKeyRange::upperValue(ExecutionContext* context) const
     72 {
     73     DOMRequestState requestState(context);
     74     return idbKeyToScriptValue(&requestState, m_upper);
     75 }
     76 
     77 PassRefPtr<IDBKeyRange> IDBKeyRange::only(PassRefPtr<IDBKey> prpKey, ExceptionState& exceptionState)
     78 {
     79     RefPtr<IDBKey> key = prpKey;
     80     if (!key || !key->isValid()) {
     81         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
     82         return 0;
     83     }
     84 
     85     return IDBKeyRange::create(key, key, LowerBoundClosed, UpperBoundClosed);
     86 }
     87 
     88 PassRefPtr<IDBKeyRange> IDBKeyRange::only(ExecutionContext* context, const ScriptValue& keyValue, ExceptionState& exceptionState)
     89 {
     90     DOMRequestState requestState(context);
     91     RefPtr<IDBKey> key = scriptValueToIDBKey(&requestState, keyValue);
     92     if (!key || !key->isValid()) {
     93         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
     94         return 0;
     95     }
     96 
     97     return IDBKeyRange::create(key, key, LowerBoundClosed, UpperBoundClosed);
     98 }
     99 
    100 PassRefPtr<IDBKeyRange> IDBKeyRange::lowerBound(ExecutionContext* context, const ScriptValue& boundValue, bool open, ExceptionState& exceptionState)
    101 {
    102     DOMRequestState requestState(context);
    103     RefPtr<IDBKey> bound = scriptValueToIDBKey(&requestState, boundValue);
    104     if (!bound || !bound->isValid()) {
    105         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
    106         return 0;
    107     }
    108 
    109     return IDBKeyRange::create(bound, 0, open ? LowerBoundOpen : LowerBoundClosed, UpperBoundOpen);
    110 }
    111 
    112 PassRefPtr<IDBKeyRange> IDBKeyRange::upperBound(ExecutionContext* context, const ScriptValue& boundValue, bool open, ExceptionState& exceptionState)
    113 {
    114     DOMRequestState requestState(context);
    115     RefPtr<IDBKey> bound = scriptValueToIDBKey(&requestState, boundValue);
    116     if (!bound || !bound->isValid()) {
    117         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
    118         return 0;
    119     }
    120 
    121     return IDBKeyRange::create(0, bound, LowerBoundOpen, open ? UpperBoundOpen : UpperBoundClosed);
    122 }
    123 
    124 PassRefPtr<IDBKeyRange> IDBKeyRange::bound(ExecutionContext* context, const ScriptValue& lowerValue, const ScriptValue& upperValue, bool lowerOpen, bool upperOpen, ExceptionState& exceptionState)
    125 {
    126     DOMRequestState requestState(context);
    127     RefPtr<IDBKey> lower = scriptValueToIDBKey(&requestState, lowerValue);
    128     RefPtr<IDBKey> upper = scriptValueToIDBKey(&requestState, upperValue);
    129 
    130     if (!lower || !lower->isValid() || !upper || !upper->isValid()) {
    131         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
    132         return 0;
    133     }
    134     if (upper->isLessThan(lower.get())) {
    135         exceptionState.throwDOMException(DataError, "The lower key is greater than the upper key.");
    136         return 0;
    137     }
    138     if (upper->isEqual(lower.get()) && (lowerOpen || upperOpen)) {
    139         exceptionState.throwDOMException(DataError, "The lower key and upper key are equal and one of the bounds is open.");
    140         return 0;
    141     }
    142 
    143     return IDBKeyRange::create(lower, upper, lowerOpen ? LowerBoundOpen : LowerBoundClosed, upperOpen ? UpperBoundOpen : UpperBoundClosed);
    144 }
    145 
    146 } // namespace WebCore
    147