1 files changed, 143 insertions, 0 deletions
diff --git a/widget/nsIDragSession.idl b/widget/nsIDragSession.idl
new file mode 100644
index 0000000000..0b77120831
--- /dev/null
+++ b/widget/nsIDragSession.idl
@@ -0,0 +1,143 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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/. */
+
+#include "nsISupports.idl"
+#include "nsITransferable.idl"
+
+
+
+%{ C++
+#include "nsSize.h"
+%}
+interface nsIContentSecurityPolicy;
+
+native nsSize(nsSize);
+
+webidl DataTransfer;
+webidl WindowContext;
+webidl Node;
+webidl Selection;
+
+[scriptable, builtinclass, uuid(25bce737-73f0-43c7-bc20-c71044a73c5a)]
+interface nsIDragSession : nsISupports
+{
+  /**
+    * Set the current state of the drag, whether it can be dropped or not.
+    * usually the target "frame" sets this so the native system can render the correct feedback
+    */
+  attribute boolean canDrop;
+
+  /**
+   * Indicates if the drop event should be dispatched only to chrome.
+   */
+  attribute boolean onlyChromeDrop;
+
+  /**
+    * Sets the action (copy, move, link, et.c) for the current drag
+    */
+  attribute unsigned long dragAction;
+
+  /**
+    * Get the number of items that were dropped
+    */
+  readonly attribute unsigned long numDropItems;
+
+  /**
+    * The window context where the drag was started, which will be null if the
+    * drag originated outside the application. Useful for determining if a drop
+    * originated in the same window context.
+    */
+  [infallible]
+  attribute WindowContext sourceWindowContext;
+
+  /**
+    * The dom node that was originally dragged to start the session, which will be null if the
+    * drag originated outside the application.
+    */
+  readonly attribute Node sourceNode;
+
+  /**
+   * Replace source node and selection with new ones.
+   * If sourceNode is a native anonymous node, it may be replaced at reframing.
+   * If sourceNode is disconnected from the document, we cannot dispatch
+   * `dragend` event properly.
+   * When this is called, sourceNode or aNewSourceNode should be a native
+   * anonymous node.
+   */
+  [notxpcom, nostdcall] void updateSource(in Node aNewSourceNode,
+                                          in Selection aNewSelection);
+
+  /**
+   * the triggering principal.  This may be different than sourceNode's
+   * principal when sourceNode is xul:browser and the drag is
+   * triggered in a browsing context inside it.
+   */
+  attribute nsIPrincipal triggeringPrincipal;
+
+  /**
+   * the triggering csp.  This may be different than sourceNode's
+   * csp when sourceNode is xul:browser and the drag is
+   * triggered in a browsing context inside it.
+   */
+  attribute nsIContentSecurityPolicy csp;
+
+  /**
+   * The data transfer object for the current drag.
+   */
+  [binaryname(DataTransferXPCOM)]
+  attribute DataTransfer dataTransfer;
+  [notxpcom, nostdcall] DataTransfer getDataTransfer();
+  [notxpcom, nostdcall] void setDataTransfer(in DataTransfer aDataTransfer);
+
+  /**
+    * Get data from a Drag&Drop. Can be called while the drag is in process
+    * or after the drop has completed.
+    *
+    * @param  aTransferable the transferable for the data to be put into
+    * @param  aItemIndex which of multiple drag items, zero-based
+    */
+  void getData ( in nsITransferable aTransferable, in unsigned long aItemIndex ) ;
+
+   /**
+    * Check to set if any of the native data on the clipboard matches this data flavor
+    */
+  boolean isDataFlavorSupported ( in string aDataFlavor ) ;
+
+  void userCancelled();
+
+  void dragEventDispatchedToChildProcess();
+
+  // Called when nsIDragSession implementation should update the UI for the
+  // drag-and-drop based on the data got from the child process in response to
+  // NS_DRAGDROP_OVER sent from parent process to child process.
+  void updateDragEffect();
+
+  // Change the drag image, using similar arguments as
+  // nsIDragService::InvokeDragSessionWithImage.
+  void updateDragImage(in Node aImage, in long aImageX, in long aImageY);
+
+  /**
+   * Returns effects allowed at starting the session for tests.
+   */
+  [notxpcom, nostdcall] unsigned long getEffectAllowedForTests();
+
+  /**
+   * Returns true if current session was started with synthesized drag start.
+   */
+  [notxpcom, nostdcall] bool isSynthesizedForTests();
+
+  /**
+   * Sets drag end point of synthesized session when the test does not dispatch
+   * "drop" event.
+   */
+  void setDragEndPointForTests(in long aScreenX, in long aScreenY);
+
+  /**
+   * Returns true if the session is for dragging text in a text in text control
+   * element.
+   */
+  [notxpcom, nostdcall] bool isDraggingTextInTextControl();
+};