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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/ExceptionState.h"
     30 #include "bindings/v8/IDBBindingUtilities.h"
     31 #include "core/dom/ExceptionCode.h"
     32 #include "modules/indexeddb/IDBDatabase.h"
     33 
     34 namespace WebCore {
     35 
     36 IDBKeyRange* IDBKeyRange::fromScriptValue(ExecutionContext* context, const ScriptValue& value, ExceptionState& exceptionState)
     37 {
     38     if (value.isUndefined() || value.isNull())
     39         return 0;
     40 
     41     IDBKeyRange* range = scriptValueToIDBKeyRange(toIsolate(context), value);
     42     if (range)
     43         return range;
     44 
     45     IDBKey* key = scriptValueToIDBKey(toIsolate(context), value);
     46     if (!key || !key->isValid()) {
     47         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
     48         return 0;
     49     }
     50 
     51     return new IDBKeyRange(key, key, LowerBoundClosed, UpperBoundClosed);
     52 }
     53 
     54 IDBKeyRange::IDBKeyRange(IDBKey* lower, IDBKey* upper, LowerBoundType lowerType, UpperBoundType upperType)
     55     : m_lower(lower)
     56     , m_upper(upper)
     57     , m_lowerType(lowerType)
     58     , m_upperType(upperType)
     59 {
     60     ScriptWrappable::init(this);
     61 }
     62 
     63 void IDBKeyRange::trace(Visitor* visitor)
     64 {
     65     visitor->trace(m_lower);
     66     visitor->trace(m_upper);
     67 }
     68 
     69 ScriptValue IDBKeyRange::lowerValue(ScriptState* scriptState) const
     70 {
     71     return idbKeyToScriptValue(scriptState, m_lower);
     72 }
     73 
     74 ScriptValue IDBKeyRange::upperValue(ScriptState* scriptState) const
     75 {
     76     return idbKeyToScriptValue(scriptState, m_upper);
     77 }
     78 
     79 IDBKeyRange* IDBKeyRange::only(IDBKey* key, ExceptionState& exceptionState)
     80 {
     81     if (!key || !key->isValid()) {
     82         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
     83         return 0;
     84     }
     85 
     86     return IDBKeyRange::create(key, key, LowerBoundClosed, UpperBoundClosed);
     87 }
     88 
     89 IDBKeyRange* IDBKeyRange::only(ExecutionContext* context, const ScriptValue& keyValue, ExceptionState& exceptionState)
     90 {
     91     IDBKey* key = scriptValueToIDBKey(toIsolate(context), 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 IDBKeyRange* IDBKeyRange::lowerBound(ExecutionContext* context, const ScriptValue& boundValue, bool open, ExceptionState& exceptionState)
    101 {
    102     IDBKey* bound = scriptValueToIDBKey(toIsolate(context), boundValue);
    103     if (!bound || !bound->isValid()) {
    104         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
    105         return 0;
    106     }
    107 
    108     return IDBKeyRange::create(bound, 0, open ? LowerBoundOpen : LowerBoundClosed, UpperBoundOpen);
    109 }
    110 
    111 IDBKeyRange* IDBKeyRange::upperBound(ExecutionContext* context, const ScriptValue& boundValue, bool open, ExceptionState& exceptionState)
    112 {
    113     IDBKey* bound = scriptValueToIDBKey(toIsolate(context), boundValue);
    114     if (!bound || !bound->isValid()) {
    115         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
    116         return 0;
    117     }
    118 
    119     return IDBKeyRange::create(0, bound, LowerBoundOpen, open ? UpperBoundOpen : UpperBoundClosed);
    120 }
    121 
    122 IDBKeyRange* IDBKeyRange::bound(ExecutionContext* context, const ScriptValue& lowerValue, const ScriptValue& upperValue, bool lowerOpen, bool upperOpen, ExceptionState& exceptionState)
    123 {
    124     IDBKey* lower = scriptValueToIDBKey(toIsolate(context), lowerValue);
    125     IDBKey* upper = scriptValueToIDBKey(toIsolate(context), upperValue);
    126 
    127     if (!lower || !lower->isValid() || !upper || !upper->isValid()) {
    128         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
    129         return 0;
    130     }
    131     if (upper->isLessThan(lower)) {
    132         exceptionState.throwDOMException(DataError, "The lower key is greater than the upper key.");
    133         return 0;
    134     }
    135     if (upper->isEqual(lower) && (lowerOpen || upperOpen)) {
    136         exceptionState.throwDOMException(DataError, "The lower key and upper key are equal and one of the bounds is open.");
    137         return 0;
    138     }
    139 
    140     return IDBKeyRange::create(lower, upper, lowerOpen ? LowerBoundOpen : LowerBoundClosed, upperOpen ? UpperBoundOpen : UpperBoundClosed);
    141 }
    142 
    143 } // namespace WebCore
    144