Home | History | Annotate | Download | only in clipboard 
      1 /*
      2  * Copyright (C) 2011 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "core/clipboard/DataTransferItem.h"
     33 
     34 #include "bindings/core/v8/V8Binding.h"
     35 #include "core/clipboard/DataObjectItem.h"
     36 #include "core/clipboard/DataTransfer.h"
     37 #include "core/dom/StringCallback.h"
     38 #include "wtf/StdLibExtras.h"
     39 
     40 namespace blink {
     41 
     42 DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(DataTransferItem);
     43 
     44 PassRefPtrWillBeRawPtr<DataTransferItem> DataTransferItem::create(PassRefPtrWillBeRawPtr<DataTransfer> dataTransfer, PassRefPtrWillBeRawPtr<DataObjectItem> item)
     45 {
     46     return adoptRefWillBeNoop(new DataTransferItem(dataTransfer, item));
     47 }
     48 
     49 String DataTransferItem::kind() const
     50 {
     51     DEFINE_STATIC_LOCAL(const String, kindString, ("string"));
     52     DEFINE_STATIC_LOCAL(const String, kindFile, ("file"));
     53     if (!m_dataTransfer->canReadTypes())
     54         return String();
     55     switch (m_item->kind()) {
     56     case DataObjectItem::StringKind:
     57         return kindString;
     58     case DataObjectItem::FileKind:
     59         return kindFile;
     60     }
     61     ASSERT_NOT_REACHED();
     62     return String();
     63 }
     64 
     65 String DataTransferItem::type() const
     66 {
     67     if (!m_dataTransfer->canReadTypes())
     68         return String();
     69     return m_item->type();
     70 }
     71 
     72 void DataTransferItem::getAsString(ExecutionContext* context, StringCallback* callback) const
     73 {
     74     if (!m_dataTransfer->canReadData())
     75         return;
     76     if (!callback || m_item->kind() != DataObjectItem::StringKind)
     77         return;
     78 
     79     StringCallback::scheduleCallback(callback, context, m_item->getAsString(), "DataTransferItem.getAsString");
     80 }
     81 
     82 PassRefPtrWillBeRawPtr<Blob> DataTransferItem::getAsFile() const
     83 {
     84     if (!m_dataTransfer->canReadData())
     85         return nullptr;
     86 
     87     return m_item->getAsFile();
     88 }
     89 
     90 DataTransferItem::DataTransferItem(PassRefPtrWillBeRawPtr<DataTransfer> dataTransfer, PassRefPtrWillBeRawPtr<DataObjectItem> item)
     91     : m_dataTransfer(dataTransfer)
     92     , m_item(item)
     93 {
     94 }
     95 
     96 void DataTransferItem::trace(Visitor* visitor)
     97 {
     98     visitor->trace(m_dataTransfer);
     99     visitor->trace(m_item);
    100 }
    101 
    102 } // namespace blink
    103 
    104