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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/core/v8/ExceptionState.h"
     30 #include "bindings/modules/v8/IDBBindingUtilities.h"
     31 #include "core/dom/ExceptionCode.h"
     32 #include "modules/indexeddb/IDBDatabase.h"
     33 
     34 namespace blink {
     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 }
     61 
     62 void IDBKeyRange::trace(Visitor* visitor)
     63 {
     64     visitor->trace(m_lower);
     65     visitor->trace(m_upper);
     66 }
     67 
     68 ScriptValue IDBKeyRange::lowerValue(ScriptState* scriptState) const
     69 {
     70     return idbKeyToScriptValue(scriptState, m_lower);
     71 }
     72 
     73 ScriptValue IDBKeyRange::upperValue(ScriptState* scriptState) const
     74 {
     75     return idbKeyToScriptValue(scriptState, m_upper);
     76 }
     77 
     78 IDBKeyRange* IDBKeyRange::only(IDBKey* key, ExceptionState& exceptionState)
     79 {
     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 IDBKeyRange* IDBKeyRange::only(ExecutionContext* context, const ScriptValue& keyValue, ExceptionState& exceptionState)
     89 {
     90     IDBKey* key = scriptValueToIDBKey(toIsolate(context), keyValue);
     91     if (!key || !key->isValid()) {
     92         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
     93         return 0;
     94     }
     95 
     96     return IDBKeyRange::create(key, key, LowerBoundClosed, UpperBoundClosed);
     97 }
     98 
     99 IDBKeyRange* IDBKeyRange::lowerBound(ExecutionContext* context, const ScriptValue& boundValue, bool open, ExceptionState& exceptionState)
    100 {
    101     IDBKey* bound = scriptValueToIDBKey(toIsolate(context), boundValue);
    102     if (!bound || !bound->isValid()) {
    103         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
    104         return 0;
    105     }
    106 
    107     return IDBKeyRange::create(bound, 0, open ? LowerBoundOpen : LowerBoundClosed, UpperBoundOpen);
    108 }
    109 
    110 IDBKeyRange* IDBKeyRange::upperBound(ExecutionContext* context, const ScriptValue& boundValue, bool open, ExceptionState& exceptionState)
    111 {
    112     IDBKey* bound = scriptValueToIDBKey(toIsolate(context), boundValue);
    113     if (!bound || !bound->isValid()) {
    114         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
    115         return 0;
    116     }
    117 
    118     return IDBKeyRange::create(0, bound, LowerBoundOpen, open ? UpperBoundOpen : UpperBoundClosed);
    119 }
    120 
    121 IDBKeyRange* IDBKeyRange::bound(ExecutionContext* context, const ScriptValue& lowerValue, const ScriptValue& upperValue, bool lowerOpen, bool upperOpen, ExceptionState& exceptionState)
    122 {
    123     IDBKey* lower = scriptValueToIDBKey(toIsolate(context), lowerValue);
    124     IDBKey* upper = scriptValueToIDBKey(toIsolate(context), upperValue);
    125 
    126     if (!lower || !lower->isValid() || !upper || !upper->isValid()) {
    127         exceptionState.throwDOMException(DataError, IDBDatabase::notValidKeyErrorMessage);
    128         return 0;
    129     }
    130     if (upper->isLessThan(lower)) {
    131         exceptionState.throwDOMException(DataError, "The lower key is greater than the upper key.");
    132         return 0;
    133     }
    134     if (upper->isEqual(lower) && (lowerOpen || upperOpen)) {
    135         exceptionState.throwDOMException(DataError, "The lower key and upper key are equal and one of the bounds is open.");
    136         return 0;
    137     }
    138 
    139     return IDBKeyRange::create(lower, upper, lowerOpen ? LowerBoundOpen : LowerBoundClosed, upperOpen ? UpperBoundOpen : UpperBoundClosed);
    140 }
    141 
    142 } // namespace blink
    143