Remove non-functional nsDragAndDrop due to refactoring

2 files changed, 0 insertions, 605 deletions

diff --git a/toolkit/content/jar.mn b/toolkit/content/jar.mn
index b4eec241c..0a0f0253b 100644
--- a/toolkit/content/jar.mn
+++ b/toolkit/content/jar.mn
@@ -70,7 +70,6 @@ toolkit.jar:
    content/global/dialogOverlay.js
    content/global/inlineSpellCheckUI.js
    content/global/nsClipboard.js
-   content/global/nsDragAndDrop.js
    content/global/nsUserSettings.js
    content/global/strres.js
    content/global/bindings/autocomplete.xml    (widgets/autocomplete.xml)
diff --git a/toolkit/content/nsDragAndDrop.js b/toolkit/content/nsDragAndDrop.js
deleted file mode 100644
index 40e96f9d1..000000000
--- a/toolkit/content/nsDragAndDrop.js
+++ /dev/null
@@ -1,604 +0,0 @@
-// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
-
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-////////////////////////////////////////////////////////////////////////
-//
-// USE OF THIS API FOR DRAG AND DROP IS DEPRECATED!
-// Do not use this file for new code.
-//
-// For documentation about what to use instead, see:
-//   http://developer.mozilla.org/En/DragDrop/Drag_and_Drop
-//
-////////////////////////////////////////////////////////////////////////
-
-
-/** 
- *  nsTransferable - a wrapper for nsITransferable that simplifies
- *                   javascript clipboard and drag&drop. for use in
- *                   these situations you should use the nsClipboard
- *                   and nsDragAndDrop wrappers for more convenience
- **/ 
- 
-var nsTransferable = {
-  /**
-   * nsITransferable set (TransferData aTransferData) ;
-   *
-   * Creates a transferable with data for a list of supported types ("flavours")
-   * 
-   * @param TransferData aTransferData
-   *        a javascript object in the format described above 
-   **/ 
-  set: function (aTransferDataSet)
-    {
-      var trans = this.createTransferable();
-      for (var i = 0; i < aTransferDataSet.dataList.length; ++i) 
-        {
-          var currData = aTransferDataSet.dataList[i];
-          var currFlavour = currData.flavour.contentType;
-          trans.addDataFlavor(currFlavour);
-          var supports = null; // nsISupports data
-          var length = 0;
-          if (currData.flavour.dataIIDKey == "nsISupportsString")
-            {
-              supports = Components.classes["@mozilla.org/supports-string;1"]
-                                   .createInstance(Components.interfaces.nsISupportsString);
-
-              supports.data = currData.supports;
-              length = supports.data.length;
-            }
-          else 
-            {
-              // non-string data.
-              supports = currData.supports;
-              length = 0; // kFlavorHasDataProvider
-            }
-          trans.setTransferData(currFlavour, supports, length * 2);
-        }
-      return trans;
-    },
-  
-  /**
-   * TransferData/TransferDataSet get (FlavourSet aFlavourSet, 
-   *                                   Function aRetrievalFunc, Boolean aAnyFlag) ;
-   *
-   * Retrieves data from the transferable provided in aRetrievalFunc, formatted
-   * for more convenient access.
-   *
-   * @param FlavourSet aFlavourSet
-   *        a FlavourSet object that contains a list of supported flavours.
-   * @param Function aRetrievalFunc
-   *        a reference to a function that returns a nsISupportsArray of nsITransferables
-   *        for each item from the specified source (clipboard/drag&drop etc)
-   * @param Boolean aAnyFlag
-   *        a flag specifying whether or not a specific flavour is requested. If false,
-   *        data of the type of the first flavour in the flavourlist parameter is returned,
-   *        otherwise the best flavour supported will be returned.
-   **/
-  get: function (aFlavourSet, aRetrievalFunc, aAnyFlag)
-    {
-      if (!aRetrievalFunc) 
-        throw "No data retrieval handler provided!";
-      
-      var supportsArray = aRetrievalFunc(aFlavourSet);
-      var dataArray = [];
-      var count = supportsArray.Count();
-      
-      // Iterate over the number of items returned from aRetrievalFunc. For
-      // clipboard operations, this is 1, for drag and drop (where multiple
-      // items may have been dragged) this could be >1.
-      for (var i = 0; i < count; i++)
-        {
-          var trans = supportsArray.GetElementAt(i);
-          if (!trans) continue;
-          trans = trans.QueryInterface(Components.interfaces.nsITransferable);
-            
-          var data = { };
-          var length = { };
-          
-          var currData = null;
-          if (aAnyFlag)
-            { 
-              var flavour = { };
-              trans.getAnyTransferData(flavour, data, length);
-              if (data && flavour)
-                {
-                  var selectedFlavour = aFlavourSet.flavourTable[flavour.value];
-                  if (selectedFlavour) 
-                    dataArray[i] = FlavourToXfer(data.value, length.value, selectedFlavour);
-                }
-            }
-          else
-            {
-              var firstFlavour = aFlavourSet.flavours[0];
-              trans.getTransferData(firstFlavour, data, length);
-              if (data && firstFlavour)
-                dataArray[i] = FlavourToXfer(data.value, length.value, firstFlavour);
-            }
-        }
-      return new TransferDataSet(dataArray);
-    },
-
-  /** 
-   * nsITransferable createTransferable (void) ;
-   *
-   * Creates and returns a transferable object.
-   **/    
-  createTransferable: function ()
-    {
-      const kXferableContractID = "@mozilla.org/widget/transferable;1";
-      const kXferableIID = Components.interfaces.nsITransferable;
-      var trans = Components.classes[kXferableContractID].createInstance(kXferableIID);
-      trans.init(null);
-      return trans;
-    }
-};  
-
-/** 
- * A FlavourSet is a simple type that represents a collection of Flavour objects.
- * FlavourSet is constructed from an array of Flavours, and stores this list as
- * an array and a hashtable. The rationale for the dual storage is as follows:
- * 
- * Array: Ordering is important when adding data flavours to a transferable. 
- *        Flavours added first are deemed to be 'preferred' by the client. 
- * Hash:  Convenient lookup of flavour data using the content type (MIME type)
- *        of data as a key. 
- */
-function FlavourSet(aFlavourList)
-{
-  this.flavours = aFlavourList || [];
-  this.flavourTable = { };
-
-  this._XferID = "FlavourSet";
-  
-  for (var i = 0; i < this.flavours.length; ++i)
-    this.flavourTable[this.flavours[i].contentType] = this.flavours[i];
-}
-
-FlavourSet.prototype = {
-  appendFlavour: function (aFlavour, aFlavourIIDKey)
-  {
-    var flavour = new Flavour (aFlavour, aFlavourIIDKey);
-    this.flavours.push(flavour);
-    this.flavourTable[flavour.contentType] = flavour;
-  }
-};
-
-/** 
- * A Flavour is a simple type that represents a data type that can be handled. 
- * It takes a content type (MIME type) which is used when storing data on the
- * system clipboard/drag and drop, and an IIDKey (string interface name
- * which is used to QI data to an appropriate form. The default interface is
- * assumed to be wide-string.
- */ 
-function Flavour(aContentType, aDataIIDKey)
-{
-  this.contentType = aContentType;
-  this.dataIIDKey = aDataIIDKey || "nsISupportsString";
-
-  this._XferID = "Flavour";
-}
-
-function TransferDataBase() {}
-TransferDataBase.prototype = {
-  push: function (aItems)
-  {
-    this.dataList.push(aItems);
-  },
-
-  get first ()
-  {
-    return "dataList" in this && this.dataList.length ? this.dataList[0] : null;
-  }
-};
-
-/** 
- * TransferDataSet is a list (array) of TransferData objects, which represents
- * data dragged from one or more elements. 
- */
-function TransferDataSet(aTransferDataList)
-{
-  this.dataList = aTransferDataList || [];
-
-  this._XferID = "TransferDataSet";
-}
-TransferDataSet.prototype = TransferDataBase.prototype;
-
-/** 
- * TransferData is a list (array) of FlavourData for all the applicable content
- * types associated with a drag from a single item. 
- */
-function TransferData(aFlavourDataList)
-{
-  this.dataList = aFlavourDataList || [];
-
-  this._XferID = "TransferData";
-}
-TransferData.prototype = {
-  __proto__: TransferDataBase.prototype,
-  
-  addDataForFlavour: function (aFlavourString, aData, aLength, aDataIIDKey)
-  {
-    this.dataList.push(new FlavourData(aData, aLength, 
-                       new Flavour(aFlavourString, aDataIIDKey)));
-  }
-};
-
-/** 
- * FlavourData is a type that represents data retrieved from the system 
- * clipboard or drag and drop. It is constructed internally by the Transferable
- * using the raw (nsISupports) data from the clipboard, the length of the data,
- * and an object of type Flavour representing the type. Clients implementing
- * IDragDropObserver receive an object of this type in their implementation of
- * onDrop. They access the 'data' property to retrieve data, which is either data 
- * QI'ed to a usable form, or unicode string. 
- */
-function FlavourData(aData, aLength, aFlavour) 
-{
-  this.supports = aData;
-  this.contentLength = aLength;
-  this.flavour = aFlavour || null;
-  
-  this._XferID = "FlavourData";
-}
-
-FlavourData.prototype = {
-  get data ()
-  {
-    if (this.flavour &&
-        this.flavour.dataIIDKey != "nsISupportsString")
-      return this.supports.QueryInterface(Components.interfaces[this.flavour.dataIIDKey]); 
-
-    var supports = this.supports;
-    if (supports instanceof Components.interfaces.nsISupportsString)
-      return supports.data.substring(0, this.contentLength/2);
-     
-    return supports;
-  }
-}
-
-/** 
- * Create a TransferData object with a single FlavourData entry. Used when 
- * unwrapping data of a specific flavour from the drag service. 
- */
-function FlavourToXfer(aData, aLength, aFlavour) 
-{
-  return new TransferData([new FlavourData(aData, aLength, aFlavour)]);
-}
-
-var transferUtils = {
-
-  retrieveURLFromData: function (aData, flavour)
-  {
-    switch (flavour) {
-      case "text/unicode":
-      case "text/plain":
-      case "text/x-moz-text-internal":
-        return aData.replace(/^\s+|\s+$/g, "");
-      case "text/x-moz-url":
-        return ((aData instanceof Components.interfaces.nsISupportsString) ? aData.toString() : aData).split("\n")[0];
-      case "application/x-moz-file":
-        var ioService = Components.classes["@mozilla.org/network/io-service;1"]
-                                  .getService(Components.interfaces.nsIIOService);
-        var fileHandler = ioService.getProtocolHandler("file")
-                                   .QueryInterface(Components.interfaces.nsIFileProtocolHandler);
-        return fileHandler.getURLSpecFromFile(aData);
-    }
-    return null;                                                   
-  }
-
-}
-
-/**
- * nsDragAndDrop - a convenience wrapper for nsTransferable, nsITransferable
- *                 and nsIDragService/nsIDragSession. 
- *
- * Use: map the handler functions to the 'ondraggesture', 'ondragover' and
- *   'ondragdrop' event handlers on your XML element, e.g.                   
- *   <xmlelement ondraggesture="nsDragAndDrop.startDrag(event, observer);"   
- *               ondragover="nsDragAndDrop.dragOver(event, observer);"      
- *               ondragdrop="nsDragAndDrop.drop(event, observer);"/>         
- *                                                                           
- *   You need to create an observer js object with the following member      
- *   functions:                                                              
- *     Object onDragStart (event)        // called when drag initiated,      
- *                                       // returns flavour list with data   
- *                                       // to stuff into transferable      
- *     void onDragOver (Object flavour)  // called when element is dragged   
- *                                       // over, so that it can perform     
- *                                       // any drag-over feedback for provided
- *                                       // flavour                          
- *     void onDrop (Object data)         // formatted data object dropped.   
- *     Object getSupportedFlavours ()    // returns a flavour list so that   
- *                                       // nsTransferable can determine
- *                                       // whether or not to accept drop. 
- **/   
-
-var nsDragAndDrop = {
-  
-  _mDS: null,
-  get mDragService()
-    {
-      if (!this._mDS) 
-        {
-          const kDSContractID = "@mozilla.org/widget/dragservice;1";
-          const kDSIID = Components.interfaces.nsIDragService;
-          this._mDS = Components.classes[kDSContractID].getService(kDSIID);
-        }
-      return this._mDS;
-    },
-
-  /**
-   * void startDrag (DOMEvent aEvent, Object aDragDropObserver) ;
-   *
-   * called when a drag on an element is started.
-   *
-   * @param DOMEvent aEvent
-   *        the DOM event fired by the drag init
-   * @param Object aDragDropObserver
-   *        javascript object of format described above that specifies
-   *        the way in which the element responds to drag events.
-   **/  
-  startDrag: function (aEvent, aDragDropObserver)
-    {
-      if (!("onDragStart" in aDragDropObserver))
-        return;
-
-      const kDSIID = Components.interfaces.nsIDragService;
-      var dragAction = { action: kDSIID.DRAGDROP_ACTION_COPY + kDSIID.DRAGDROP_ACTION_MOVE + kDSIID.DRAGDROP_ACTION_LINK };
-
-      var transferData = { data: null };
-      try 
-        {
-          aDragDropObserver.onDragStart(aEvent, transferData, dragAction);
-        }
-      catch (e) 
-        {
-          return;  // not a draggable item, bail!
-        }
-
-      if (!transferData.data) return;
-      transferData = transferData.data;
-
-      var dt = aEvent.dataTransfer;
-      var count = 0;
-      do {
-        var tds = transferData._XferID == "TransferData" 
-                                         ? transferData 
-                                         : transferData.dataList[count]
-        for (var i = 0; i < tds.dataList.length; ++i) 
-        {
-          var currData = tds.dataList[i];
-          var currFlavour = currData.flavour.contentType;
-          var value = currData.supports;
-          if (value instanceof Components.interfaces.nsISupportsString)
-            value = value.toString();
-          dt.mozSetDataAt(currFlavour, value, count);
-        }
-
-        count++;
-      }
-      while (transferData._XferID == "TransferDataSet" && 
-             count < transferData.dataList.length);
-
-      dt.effectAllowed = "all";
-      // a drag targeted at a tree should instead use the treechildren so that
-      // the current selection is used as the drag feedback
-      dt.addElement(aEvent.originalTarget.localName == "treechildren" ?
-                    aEvent.originalTarget : aEvent.target);
-      aEvent.stopPropagation();
-    },
-
-  /** 
-   * void dragOver (DOMEvent aEvent, Object aDragDropObserver) ;
-   *
-   * called when a drag passes over this element
-   *
-   * @param DOMEvent aEvent
-   *        the DOM event fired by passing over the element
-   * @param Object aDragDropObserver
-   *        javascript object of format described above that specifies
-   *        the way in which the element responds to drag events.
-   **/
-  dragOver: function (aEvent, aDragDropObserver)
-    { 
-      if (!("onDragOver" in aDragDropObserver)) 
-        return;
-      if (!this.checkCanDrop(aEvent, aDragDropObserver))
-        return;
-      var flavourSet = aDragDropObserver.getSupportedFlavours();
-      for (var flavour in flavourSet.flavourTable)
-        {
-          if (this.mDragSession.isDataFlavorSupported(flavour))
-            {
-              aDragDropObserver.onDragOver(aEvent, 
-                                           flavourSet.flavourTable[flavour], 
-                                           this.mDragSession);
-              aEvent.stopPropagation();
-              aEvent.preventDefault();
-              break;
-            }
-        }
-    },
-
-  mDragSession: null,
-
-  /** 
-   * void drop (DOMEvent aEvent, Object aDragDropObserver) ;
-   *
-   * called when the user drops on the element
-   *
-   * @param DOMEvent aEvent
-   *        the DOM event fired by the drop
-   * @param Object aDragDropObserver
-   *        javascript object of format described above that specifies
-   *        the way in which the element responds to drag events.
-   **/
-  drop: function (aEvent, aDragDropObserver)
-    {
-      if (!("onDrop" in aDragDropObserver))
-        return;
-      if (!this.checkCanDrop(aEvent, aDragDropObserver))
-        return;  
-
-      var flavourSet = aDragDropObserver.getSupportedFlavours();
-
-      var dt = aEvent.dataTransfer;
-      var dataArray = [];
-      var count = dt.mozItemCount;
-      for (var i = 0; i < count; ++i) {
-        var types = dt.mozTypesAt(i);
-        for (var j = 0; j < flavourSet.flavours.length; j++) {
-          var type = flavourSet.flavours[j].contentType;
-          // dataTransfer uses text/plain but older code used text/unicode, so
-          // switch this for compatibility
-          var modtype = (type == "text/unicode") ? "text/plain" : type;
-          if (Array.indexOf(types, modtype) >= 0) {
-            var data = dt.mozGetDataAt(modtype, i);
-            if (data) {
-              // Non-strings need some non-zero value used for their data length.
-              const kNonStringDataLength = 4;
-
-              var length = (typeof data == "string") ? data.length : kNonStringDataLength;
-              dataArray[i] = FlavourToXfer(data, length, flavourSet.flavourTable[type]);
-              break;
-            }
-          }
-        }
-      }
-
-      var transferData = new TransferDataSet(dataArray)
-
-      // hand over to the client to respond to dropped data
-      var multiple = "canHandleMultipleItems" in aDragDropObserver && aDragDropObserver.canHandleMultipleItems;
-      var dropData = multiple ? transferData : transferData.first.first;
-      aDragDropObserver.onDrop(aEvent, dropData, this.mDragSession);
-      aEvent.stopPropagation();
-    },
-
-  /** 
-   * void dragExit (DOMEvent aEvent, Object aDragDropObserver) ;
-   *
-   * called when a drag leaves this element
-   *
-   * @param DOMEvent aEvent
-   *        the DOM event fired by leaving the element
-   * @param Object aDragDropObserver
-   *        javascript object of format described above that specifies
-   *        the way in which the element responds to drag events.
-   **/
-  dragExit: function (aEvent, aDragDropObserver)
-    {
-      if (!this.checkCanDrop(aEvent, aDragDropObserver))
-        return;
-      if ("onDragExit" in aDragDropObserver)
-        aDragDropObserver.onDragExit(aEvent, this.mDragSession);
-    },  
-    
-  /** 
-   * void dragEnter (DOMEvent aEvent, Object aDragDropObserver) ;
-   *
-   * called when a drag enters in this element
-   *
-   * @param DOMEvent aEvent
-   *        the DOM event fired by entering in the element
-   * @param Object aDragDropObserver
-   *        javascript object of format described above that specifies
-   *        the way in which the element responds to drag events.
-   **/
-  dragEnter: function (aEvent, aDragDropObserver)
-    {
-      if (!this.checkCanDrop(aEvent, aDragDropObserver))
-        return;
-      if ("onDragEnter" in aDragDropObserver)
-        aDragDropObserver.onDragEnter(aEvent, this.mDragSession);
-    },  
-
-  /** 
-   * Boolean checkCanDrop (DOMEvent aEvent, Object aDragDropObserver) ;
-   *
-   * Sets the canDrop attribute for the drag session.
-   * returns false if there is no current drag session.
-   *
-   * @param DOMEvent aEvent
-   *        the DOM event fired by the drop
-   * @param Object aDragDropObserver
-   *        javascript object of format described above that specifies
-   *        the way in which the element responds to drag events.
-   **/
-  checkCanDrop: function (aEvent, aDragDropObserver)
-    {
-      if (!this.mDragSession) 
-        this.mDragSession = this.mDragService.getCurrentSession();
-      if (!this.mDragSession) 
-        return false;
-      this.mDragSession.canDrop = this.mDragSession.sourceNode != aEvent.target;
-      if ("canDrop" in aDragDropObserver)
-        this.mDragSession.canDrop &= aDragDropObserver.canDrop(aEvent, this.mDragSession);
-      return true;
-    },
-
-  /**
-   * Do a security check for drag n' drop. Make sure the source document
-   * can load the dragged link.
-   *
-   * @param DOMEvent aEvent
-   *        the DOM event fired by leaving the element
-   * @param Object aDragDropObserver
-   *        javascript object of format described above that specifies
-   *        the way in which the element responds to drag events.
-   * @param String aDraggedText
-   *        the text being dragged
-   **/
-  dragDropSecurityCheck: function (aEvent, aDragSession, aDraggedText)
-    {
-      // Strip leading and trailing whitespace, then try to create a
-      // URI from the dropped string. If that succeeds, we're
-      // dropping a URI and we need to do a security check to make
-      // sure the source document can load the dropped URI. We don't
-      // so much care about creating the real URI here
-      // (i.e. encoding differences etc don't matter), we just want
-      // to know if aDraggedText really is a URI.
-
-      aDraggedText = aDraggedText.replace(/^\s*|\s*$/g, '');
-
-      var uri;
-      var ioService = Components.classes["@mozilla.org/network/io-service;1"]
-                                .getService(Components.interfaces.nsIIOService);
-      try {
-        uri = ioService.newURI(aDraggedText, null, null);
-      } catch (e) {
-      }
-
-      if (!uri)
-        return;
-
-      // aDraggedText is a URI, do the security check.
-      const nsIScriptSecurityManager = Components.interfaces
-                                                 .nsIScriptSecurityManager;
-      var secMan = Components.classes["@mozilla.org/scriptsecuritymanager;1"]
-                             .getService(nsIScriptSecurityManager);
-
-      if (!aDragSession)
-        aDragSession = this.mDragService.getCurrentSession();
-
-      var sourceDoc = aDragSession.sourceDocument;
-      // Use "file:///" as the default sourceURI so that drops of file:// URIs
-      // are always allowed.
-      var principal = sourceDoc ? sourceDoc.nodePrincipal
-                                : secMan.getSimpleCodebasePrincipal(ioService.newURI("file:///", null, null));
-
-      try {
-        secMan.checkLoadURIStrWithPrincipal(principal, aDraggedText,
-                                            nsIScriptSecurityManager.STANDARD);
-      } catch (e) {
-        // Stop event propagation right here.
-        aEvent.stopPropagation();
-
-        throw "Drop of " + aDraggedText + " denied.";
-      }
-    }
-};
-