third_party/WebKit/Source/modules/indexeddb/IDBKeyRange.cpp

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "modules/indexeddb/IDBKeyRange.h"

#include "bindings/core/v8/ExceptionState.h"
#include "bindings/modules/v8/ToV8ForModules.h"
#include "bindings/modules/v8/V8BindingForModules.h"
#include "core/dom/ExceptionCode.h"
#include "modules/indexeddb/IDBDatabase.h"

namespace blink {

IDBKeyRange* IDBKeyRange::fromScriptValue(ExecutionContext* context,
                                          const ScriptValue& value,
                                          ExceptionState& exceptionState) {
  if (value.isUndefined() || value.isNull())
    return nullptr;

  IDBKeyRange* range =
      ScriptValue::to<IDBKeyRange*>(toIsolate(context), value, exceptionState);
  if (range)
    return range;

  IDBKey* key =
      ScriptValue::to<IDBKey*>(toIsolate(context), value, exceptionState);
  if (exceptionState.hadException())
    return nullptr;
  if (!key || !key->isValid()) {
    exceptionState.throwDOMException(DataError,
                                     IDBDatabase::notValidKeyErrorMessage);
    return nullptr;
  }

  return new IDBKeyRange(key, key, LowerBoundClosed, UpperBoundClosed);
}

IDBKeyRange::IDBKeyRange(IDBKey* lower,
                         IDBKey* upper,
                         LowerBoundType lowerType,
                         UpperBoundType upperType)
    : m_lower(lower),
      m_upper(upper),
      m_lowerType(lowerType),
      m_upperType(upperType) {}

DEFINE_TRACE(IDBKeyRange) {
  visitor->trace(m_lower);
  visitor->trace(m_upper);
}

ScriptValue IDBKeyRange::lowerValue(ScriptState* scriptState) const {
  return ScriptValue::from(scriptState, m_lower);
}

ScriptValue IDBKeyRange::upperValue(ScriptState* scriptState) const {
  return ScriptValue::from(scriptState, m_upper);
}

IDBKeyRange* IDBKeyRange::only(IDBKey* key, ExceptionState& exceptionState) {
  if (!key || !key->isValid()) {
    exceptionState.throwDOMException(DataError,
                                     IDBDatabase::notValidKeyErrorMessage);
    return nullptr;
  }

  return IDBKeyRange::create(key, key, LowerBoundClosed, UpperBoundClosed);
}

IDBKeyRange* IDBKeyRange::only(ExecutionContext* context,
                               const ScriptValue& keyValue,
                               ExceptionState& exceptionState) {
  IDBKey* key =
      ScriptValue::to<IDBKey*>(toIsolate(context), keyValue, exceptionState);
  if (exceptionState.hadException())
    return nullptr;
  if (!key || !key->isValid()) {
    exceptionState.throwDOMException(DataError,
                                     IDBDatabase::notValidKeyErrorMessage);
    return nullptr;
  }

  return IDBKeyRange::create(key, key, LowerBoundClosed, UpperBoundClosed);
}

IDBKeyRange* IDBKeyRange::lowerBound(ExecutionContext* context,
                                     const ScriptValue& boundValue,
                                     bool open,
                                     ExceptionState& exceptionState) {
  IDBKey* bound =
      ScriptValue::to<IDBKey*>(toIsolate(context), boundValue, exceptionState);
  if (exceptionState.hadException())
    return nullptr;
  if (!bound || !bound->isValid()) {
    exceptionState.throwDOMException(DataError,
                                     IDBDatabase::notValidKeyErrorMessage);
    return nullptr;
  }

  return IDBKeyRange::create(
      bound, nullptr, open ? LowerBoundOpen : LowerBoundClosed, UpperBoundOpen);
}

IDBKeyRange* IDBKeyRange::upperBound(ExecutionContext* context,
                                     const ScriptValue& boundValue,
                                     bool open,
                                     ExceptionState& exceptionState) {
  IDBKey* bound =
      ScriptValue::to<IDBKey*>(toIsolate(context), boundValue, exceptionState);
  if (exceptionState.hadException())
    return nullptr;
  if (!bound || !bound->isValid()) {
    exceptionState.throwDOMException(DataError,
                                     IDBDatabase::notValidKeyErrorMessage);
    return nullptr;
  }

  return IDBKeyRange::create(nullptr, bound, LowerBoundOpen,
                             open ? UpperBoundOpen : UpperBoundClosed);
}

IDBKeyRange* IDBKeyRange::bound(ExecutionContext* context,
                                const ScriptValue& lowerValue,
                                const ScriptValue& upperValue,
                                bool lowerOpen,
                                bool upperOpen,
                                ExceptionState& exceptionState) {
  IDBKey* lower =
      ScriptValue::to<IDBKey*>(toIsolate(context), lowerValue, exceptionState);
  if (exceptionState.hadException())
    return nullptr;
  if (!lower || !lower->isValid()) {
    exceptionState.throwDOMException(DataError,
                                     IDBDatabase::notValidKeyErrorMessage);
    return nullptr;
  }

  IDBKey* upper =
      ScriptValue::to<IDBKey*>(toIsolate(context), upperValue, exceptionState);
  if (exceptionState.hadException())
    return nullptr;
  if (!upper || !upper->isValid()) {
    exceptionState.throwDOMException(DataError,
                                     IDBDatabase::notValidKeyErrorMessage);
    return nullptr;
  }

  if (upper->isLessThan(lower)) {
    exceptionState.throwDOMException(
        DataError, "The lower key is greater than the upper key.");
    return nullptr;
  }
  if (upper->isEqual(lower) && (lowerOpen || upperOpen)) {
    exceptionState.throwDOMException(
        DataError,
        "The lower key and upper key are equal and one of the bounds is open.");
    return nullptr;
  }

  return IDBKeyRange::create(lower, upper,
                             lowerOpen ? LowerBoundOpen : LowerBoundClosed,
                             upperOpen ? UpperBoundOpen : UpperBoundClosed);
}

bool IDBKeyRange::includes(ExecutionContext* context,
                           const ScriptValue& keyValue,
                           ExceptionState& exceptionState) {
  IDBKey* key =
      ScriptValue::to<IDBKey*>(toIsolate(context), keyValue, exceptionState);
  if (exceptionState.hadException())
    return false;
  if (!key || !key->isValid()) {
    exceptionState.throwDOMException(DataError,
                                     IDBDatabase::notValidKeyErrorMessage);
    return false;
  }

  if (m_lower) {
    short c = key->compare(m_lower);
    if (lowerOpen()) {
      if (c <= 0)
        return false;
    } else {
      if (c < 0)
        return false;
    }
  }

  if (m_upper) {
    short c = key->compare(m_upper);
    if (upperOpen()) {
      if (c >= 0)
        return false;
    } else {
      if (c > 0)
        return false;
    }
  }
  return true;
}

}  // namespace blink