LCOV - code coverage report
Current view: directory - content/base/src - nsContentAreaDragDrop.h (source / functions) Found Hit Coverage
Test: app.info Lines: 2 0 0.0 %
Date: 2012-06-02 Functions: 3 0 0.0 %

       1                 : /* ***** BEGIN LICENSE BLOCK *****
       2                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       3                 :  *
       4                 :  * The contents of this file are subject to the Mozilla Public License Version
       5                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       6                 :  * the License. You may obtain a copy of the License at
       7                 :  * http://www.mozilla.org/MPL/
       8                 :  *
       9                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      10                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      11                 :  * for the specific language governing rights and limitations under the
      12                 :  * License.
      13                 :  *
      14                 :  * The Original Code is Mozilla Communicator.
      15                 :  *
      16                 :  * The Initial Developer of the Original Code is
      17                 :  * Netscape Communications.
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2002
      19                 :  * the Initial Developer. All Rights Reserved.
      20                 :  *
      21                 :  * Contributor(s):
      22                 :  *  Mike Pinkerton <pinkerton@netscape.com>
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      26                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : 
      39                 : #ifndef nsContentAreaDragDrop_h__
      40                 : #define nsContentAreaDragDrop_h__
      41                 : 
      42                 : 
      43                 : #include "nsCOMPtr.h"
      44                 : 
      45                 : #include "nsIDOMEventTarget.h"
      46                 : #include "nsIDOMEventListener.h"
      47                 : #include "nsITransferable.h"
      48                 : 
      49                 : class nsIDOMNode;
      50                 : class nsIDOMWindow;
      51                 : class nsIDOMDocument;
      52                 : class nsIDOMDragEvent;
      53                 : class nsISelection;
      54                 : class nsITransferable;
      55                 : class nsIContent;
      56                 : class nsIURI;
      57                 : class nsIFile;
      58                 : class nsISimpleEnumerator;
      59                 : class nsDOMDataTransfer;
      60                 : 
      61                 : //
      62                 : // class nsContentAreaDragDrop, used to generate the dragdata
      63                 : //
      64                 : class nsContentAreaDragDrop
      65                 : {
      66                 : public:
      67                 : 
      68                 :   /**
      69                 :    * Determine what data in the content area, if any, is being dragged.
      70                 :    *
      71                 :    * aWindow - the window containing the target node
      72                 :    * aTarget - the mousedown event target that started the drag
      73                 :    * aSelectionTargetNode - the node where the drag event should be fired
      74                 :    * aIsAltKeyPressed - true if the Alt key is pressed. In some cases, this
      75                 :    *                    will prevent the drag from occuring. For example,
      76                 :    *                    holding down Alt over a link should select the text,
      77                 :    *                    not drag the link.
      78                 :    * aDataTransfer - the dataTransfer for the drag event.
      79                 :    * aCanDrag - [out] set to true if the drag may proceed, false to stop the
      80                 :    *            drag entirely
      81                 :    * aSelection - [out] set to the selection being dragged, or null if no
      82                 :    *                    selection is being dragged.
      83                 :    * aDragNode - [out] the link, image or area being dragged, or null if the
      84                 :    *             drag occurred on another element.
      85                 :    */
      86                 :   static nsresult GetDragData(nsIDOMWindow* aWindow,
      87                 :                               nsIContent* aTarget,
      88                 :                               nsIContent* aSelectionTargetNode,
      89                 :                               bool aIsAltKeyPressed,
      90                 :                               nsDOMDataTransfer* aDataTransfer,
      91                 :                               bool* aCanDrag,
      92                 :                               nsISelection** aSelection,
      93                 :                               nsIContent** aDragNode);
      94                 : };
      95                 : 
      96                 : // this is used to save images to disk lazily when the image data is asked for
      97                 : // during the drop instead of when it is added to the drag data transfer. This
      98                 : // ensures that the image data is only created when an image drop is allowed.
      99                 : class nsContentAreaDragDropDataProvider : public nsIFlavorDataProvider
     100               0 : {
     101                 : public:
     102                 :   NS_DECL_ISUPPORTS
     103                 :   NS_DECL_NSIFLAVORDATAPROVIDER
     104                 : 
     105               0 :   virtual ~nsContentAreaDragDropDataProvider() {}
     106                 : 
     107                 :   nsresult SaveURIToFile(nsAString& inSourceURIString,
     108                 :                          nsIFile* inDestFile);
     109                 : };
     110                 : 
     111                 : 
     112                 : #endif /* nsContentAreaDragDrop_h__ */
     113                 : 

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