Home | History | Annotate | Download | only in chromium 
      1 /*
      2  * Copyright (c) 2008, 2009, 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 #ifndef ChromiumDataObject_h
     32 #define ChromiumDataObject_h
     33 
     34 #include "core/platform/Supplementable.h"
     35 #include "core/platform/chromium/ChromiumDataObjectItem.h"
     36 #include "wtf/ListHashSet.h"
     37 #include "wtf/RefCounted.h"
     38 #include "wtf/RefPtr.h"
     39 #include "wtf/text/StringHash.h"
     40 #include "wtf/text/WTFString.h"
     41 #include "wtf/Vector.h"
     42 
     43 namespace WebCore {
     44 
     45 class ExceptionState;
     46 class KURL;
     47 class SharedBuffer;
     48 
     49 // A data object for holding data that would be in a clipboard or moved
     50 // during a drag-n-drop operation.  This is the data that WebCore is aware
     51 // of and is not specific to a platform.
     52 class ChromiumDataObject : public RefCounted<ChromiumDataObject>, public Supplementable<ChromiumDataObject> {
     53 public:
     54     static PassRefPtr<ChromiumDataObject> createFromPasteboard();
     55     static PassRefPtr<ChromiumDataObject> create();
     56 
     57     PassRefPtr<ChromiumDataObject> copy() const;
     58 
     59     // DataTransferItemList support.
     60     size_t length() const;
     61     PassRefPtr<ChromiumDataObjectItem> item(unsigned long index);
     62     // FIXME: Implement V8DataTransferItemList::indexedPropertyDeleter to get this called.
     63     void deleteItem(unsigned long index);
     64     void clearAll();
     65     void add(const String& data, const String& type, ExceptionState&);
     66     void add(PassRefPtr<File>, ScriptExecutionContext*);
     67 
     68     // WebCore helpers.
     69     void clearData(const String& type);
     70     void clearAllExceptFiles();
     71 
     72     ListHashSet<String> types() const;
     73     String getData(const String& type) const;
     74     bool setData(const String& type, const String& data);
     75 
     76     void urlAndTitle(String& url, String* title = 0) const;
     77     void setURLAndTitle(const String& url, const String& title);
     78     void htmlAndBaseURL(String& html, KURL& baseURL) const;
     79     void setHTMLAndBaseURL(const String& html, const KURL& baseURL);
     80 
     81     // Used for dragging in files from the desktop.
     82     bool containsFilenames() const;
     83     Vector<String> filenames() const;
     84     void addFilename(const String& filename, const String& displayName);
     85 
     86     // Used to handle files (images) being dragged out.
     87     void addSharedBuffer(const String& name, PassRefPtr<SharedBuffer>);
     88 
     89     int modifierKeyState() const { return m_modifierKeyState; }
     90     void setModifierKeyState(int modifierKeyState) { m_modifierKeyState = modifierKeyState; }
     91 
     92 private:
     93     ChromiumDataObject();
     94     explicit ChromiumDataObject(const ChromiumDataObject&);
     95 
     96     PassRefPtr<ChromiumDataObjectItem> findStringItem(const String& type) const;
     97     bool internalAddStringItem(PassRefPtr<ChromiumDataObjectItem>);
     98     void internalAddFileItem(PassRefPtr<ChromiumDataObjectItem>);
     99 
    100     Vector<RefPtr<ChromiumDataObjectItem> > m_itemList;
    101 
    102     // State of Shift/Ctrl/Alt/Meta keys.
    103     int m_modifierKeyState;
    104 };
    105 
    106 } // namespace WebCore
    107 
    108 #endif
    109