root/Source/core/clipboard/DataObject.cpp

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DEFINITIONS

This source file includes following definitions.
  1. createFromPasteboard
  2. create
  3. copy
  4. length
  5. item
  6. deleteItem
  7. clearAll
  8. add
  9. add
  10. clearData
  11. clearAllExceptFiles
  12. types
  13. getData
  14. setData
  15. urlAndTitle
  16. setURLAndTitle
  17. htmlAndBaseURL
  18. setHTMLAndBaseURL
  19. containsFilenames
  20. filenames
  21. addFilename
  22. addSharedBuffer
  23. m_modifierKeyState
  24. findStringItem
  25. internalAddStringItem
  26. internalAddFileItem
  27. trace

/*
 * Copyright (c) 2008, 2009, 2012 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:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
 * OWNER OR 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 "config.h"
#include "core/clipboard/DataObject.h"

#include "core/clipboard/Pasteboard.h"
#include "platform/clipboard/ClipboardMimeTypes.h"
#include "platform/clipboard/ClipboardUtilities.h"
#include "public/platform/Platform.h"
#include "public/platform/WebClipboard.h"

namespace WebCore {

PassRefPtrWillBeRawPtr<DataObject> DataObject::createFromPasteboard(PasteMode pasteMode)
{
    RefPtrWillBeRawPtr<DataObject> dataObject = create();
    blink::WebClipboard::Buffer buffer = Pasteboard::generalPasteboard()->buffer();
    uint64_t sequenceNumber = blink::Platform::current()->clipboard()->sequenceNumber(buffer);
    bool ignored;
    blink::WebVector<blink::WebString> webTypes = blink::Platform::current()->clipboard()->readAvailableTypes(buffer, &ignored);
    ListHashSet<String> types;
    for (size_t i = 0; i < webTypes.size(); ++i)
        types.add(webTypes[i]);
    for (ListHashSet<String>::const_iterator it = types.begin(); it != types.end(); ++it) {
        if (pasteMode == PlainTextOnly && *it != mimeTypeTextPlain)
            continue;
        dataObject->m_itemList.append(DataObjectItem::createFromPasteboard(*it, sequenceNumber));
    }
    return dataObject.release();
}

PassRefPtrWillBeRawPtr<DataObject> DataObject::create()
{
    return adoptRefWillBeNoop(new DataObject());
}

PassRefPtrWillBeRawPtr<DataObject> DataObject::copy() const
{
    return adoptRefWillBeNoop(new DataObject(*this));
}

size_t DataObject::length() const
{
    return m_itemList.size();
}

PassRefPtrWillBeRawPtr<DataObjectItem> DataObject::item(unsigned long index)
{
    if (index >= length())
        return nullptr;
    return m_itemList[index];
}

void DataObject::deleteItem(unsigned long index)
{
    if (index >= length())
        return;
    m_itemList.remove(index);
}

void DataObject::clearAll()
{
    m_itemList.clear();
}

PassRefPtrWillBeRawPtr<DataObjectItem> DataObject::add(const String& data, const String& type)
{
    RefPtrWillBeRawPtr<DataObjectItem> item = DataObjectItem::createFromString(type, data);
    if (!internalAddStringItem(item))
        return nullptr;
    return item;
}

PassRefPtrWillBeRawPtr<DataObjectItem> DataObject::add(PassRefPtrWillBeRawPtr<File> file)
{
    if (!file)
        return nullptr;

    RefPtrWillBeRawPtr<DataObjectItem> item = DataObjectItem::createFromFile(file);
    m_itemList.append(item);
    return item;
}

void DataObject::clearData(const String& type)
{
    for (size_t i = 0; i < m_itemList.size(); ++i) {
        if (m_itemList[i]->kind() == DataObjectItem::StringKind && m_itemList[i]->type() == type) {
            // Per the spec, type must be unique among all items of kind 'string'.
            m_itemList.remove(i);
            return;
        }
    }
}

void DataObject::clearAllExceptFiles()
{
    for (size_t i = 0; i < m_itemList.size(); ) {
        if (m_itemList[i]->kind() != DataObjectItem::FileKind) {
            m_itemList.remove(i);
            continue;
        }
        ++i;
    }
}

ListHashSet<String> DataObject::types() const
{
    ListHashSet<String> results;
    bool containsFiles = false;
    for (size_t i = 0; i < m_itemList.size(); ++i) {
        switch (m_itemList[i]->kind()) {
        case DataObjectItem::StringKind:
            results.add(m_itemList[i]->type());
            break;
        case DataObjectItem::FileKind:
            containsFiles = true;
            break;
        }
    }
    if (containsFiles)
        results.add(mimeTypeFiles);
    return results;
}

String DataObject::getData(const String& type) const
{
    for (size_t i = 0; i < m_itemList.size(); ++i)  {
        if (m_itemList[i]->kind() == DataObjectItem::StringKind && m_itemList[i]->type() == type)
            return m_itemList[i]->getAsString();
    }
    return String();
}

bool DataObject::setData(const String& type, const String& data)
{
    clearData(type);
    if (!add(data, type))
        ASSERT_NOT_REACHED();
    return true;
}

void DataObject::urlAndTitle(String& url, String* title) const
{
    RefPtrWillBeRawPtr<DataObjectItem> item = findStringItem(mimeTypeTextURIList);
    if (!item)
        return;
    url = convertURIListToURL(item->getAsString());
    if (title)
        *title = item->title();
}

void DataObject::setURLAndTitle(const String& url, const String& title)
{
    clearData(mimeTypeTextURIList);
    internalAddStringItem(DataObjectItem::createFromURL(url, title));
}

void DataObject::htmlAndBaseURL(String& html, KURL& baseURL) const
{
    RefPtrWillBeRawPtr<DataObjectItem> item = findStringItem(mimeTypeTextHTML);
    if (!item)
        return;
    html = item->getAsString();
    baseURL = item->baseURL();
}

void DataObject::setHTMLAndBaseURL(const String& html, const KURL& baseURL)
{
    clearData(mimeTypeTextHTML);
    internalAddStringItem(DataObjectItem::createFromHTML(html, baseURL));
}

bool DataObject::containsFilenames() const
{
    for (size_t i = 0; i < m_itemList.size(); ++i) {
        if (m_itemList[i]->isFilename())
            return true;
    }
    return false;
}

Vector<String> DataObject::filenames() const
{
    Vector<String> results;
    for (size_t i = 0; i < m_itemList.size(); ++i) {
        if (m_itemList[i]->isFilename())
            results.append(static_cast<File*>(m_itemList[i]->getAsFile().get())->path());
    }
    return results;
}

void DataObject::addFilename(const String& filename, const String& displayName)
{
    internalAddFileItem(DataObjectItem::createFromFile(File::createWithName(filename, displayName, File::AllContentTypes)));
}

void DataObject::addSharedBuffer(const String& name, PassRefPtr<SharedBuffer> buffer)
{
    internalAddFileItem(DataObjectItem::createFromSharedBuffer(name, buffer));
}

DataObject::DataObject()
    : m_modifierKeyState(0)
{
}

DataObject::DataObject(const DataObject& other)
    : m_itemList(other.m_itemList)
    , m_modifierKeyState(0)
{
}

PassRefPtrWillBeRawPtr<DataObjectItem> DataObject::findStringItem(const String& type) const
{
    for (size_t i = 0; i < m_itemList.size(); ++i) {
        if (m_itemList[i]->kind() == DataObjectItem::StringKind && m_itemList[i]->type() == type)
            return m_itemList[i];
    }
    return nullptr;
}

bool DataObject::internalAddStringItem(PassRefPtrWillBeRawPtr<DataObjectItem> item)
{
    ASSERT(item->kind() == DataObjectItem::StringKind);
    for (size_t i = 0; i < m_itemList.size(); ++i) {
        if (m_itemList[i]->kind() == DataObjectItem::StringKind && m_itemList[i]->type() == item->type())
            return false;
    }

    m_itemList.append(item);
    return true;
}

void DataObject::internalAddFileItem(PassRefPtrWillBeRawPtr<DataObjectItem> item)
{
    ASSERT(item->kind() == DataObjectItem::FileKind);
    m_itemList.append(item);
}

void DataObject::trace(Visitor* visitor)
{
    visitor->trace(m_itemList);
#if ENABLE(OILPAN)
    HeapSupplementable<DataObject>::trace(visitor);
#endif
}

} // namespace WebCore

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