141 lines
5.0 KiB
Plaintext
141 lines
5.0 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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#include "nsISupportsArray.idl"
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#include "nsIDragSession.idl"
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#include "nsIScriptableRegion.idl"
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interface nsIDOMNode;
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interface nsIDOMDragEvent;
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interface nsIDOMDataTransfer;
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interface nsISelection;
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%{C++
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#include "mozilla/EventForwards.h"
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namespace mozilla {
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namespace dom {
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class ContentParent;
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} // namespace dom
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} // namespace mozilla
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%}
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[ptr] native ContentParentPtr(mozilla::dom::ContentParent);
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native EventMessage(mozilla::EventMessage);
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[scriptable, uuid(ebd6b3a2-af16-43af-a698-3091a087dd62), builtinclass]
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interface nsIDragService : nsISupports
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{
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const long DRAGDROP_ACTION_NONE = 0;
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const long DRAGDROP_ACTION_COPY = 1;
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const long DRAGDROP_ACTION_MOVE = 2;
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const long DRAGDROP_ACTION_LINK = 4;
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const long DRAGDROP_ACTION_UNINITIALIZED = 64;
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/**
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* Starts a modal drag session with an array of transaferables
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*
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* @param aTransferables - an array of transferables to be dragged
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* @param aRegion - a region containing rectangles for cursor feedback,
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* in window coordinates.
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* @param aActionType - specified which of copy/move/link are allowed
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*/
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void invokeDragSession ( in nsIDOMNode aDOMNode, in nsISupportsArray aTransferables,
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in nsIScriptableRegion aRegion, in unsigned long aActionType );
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/**
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* Starts a modal drag session using an image. The first four arguments are
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* the same as invokeDragSession.
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*
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* A custom image may be specified using the aImage argument. If this is
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* supplied, the aImageX and aImageY arguments specify the offset within
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* the image where the cursor would be positioned. That is, when the image
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* is drawn, it is offset up and left the amount so that the cursor appears
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* at that location within the image.
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*
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* If aImage is null, aImageX and aImageY are not used and the image is instead
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* determined from the source node aDOMNode, and the offset calculated so that
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* the initial location for the image appears in the same screen position as
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* where the element is located. The node must be within a document.
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*
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* Currently, supported images are all DOM nodes. If this is an HTML <image> or
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* <canvas>, the drag image is taken from the image data. If the element is in
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* a document, it will be rendered at its displayed size, othewise, it will be
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* rendered at its real size. For other types of elements, the element is
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* rendered into an offscreen buffer in the same manner as it is currently
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* displayed. The document selection is hidden while drawing.
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*
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* The aDragEvent must be supplied as the current screen coordinates of the
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* event are needed to calculate the image location.
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*/
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void invokeDragSessionWithImage(in nsIDOMNode aDOMNode,
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in nsISupportsArray aTransferableArray,
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in nsIScriptableRegion aRegion,
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in unsigned long aActionType,
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in nsIDOMNode aImage,
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in long aImageX,
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in long aImageY,
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in nsIDOMDragEvent aDragEvent,
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in nsIDOMDataTransfer aDataTransfer);
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/**
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* Start a modal drag session using the selection as the drag image.
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* The aDragEvent must be supplied as the current screen coordinates of the
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* event are needed to calculate the image location.
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*/
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void invokeDragSessionWithSelection(in nsISelection aSelection,
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in nsISupportsArray aTransferableArray,
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in unsigned long aActionType,
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in nsIDOMDragEvent aDragEvent,
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in nsIDOMDataTransfer aDataTransfer);
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/**
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* Returns the current Drag Session
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*/
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nsIDragSession getCurrentSession ( ) ;
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/**
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* Tells the Drag Service to start a drag session. This is called when
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* an external drag occurs
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*/
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void startDragSession ( ) ;
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/**
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* Tells the Drag Service to end a drag session. This is called when
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* an external drag occurs
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*
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* If aDoneDrag is true, the drag has finished, otherwise the drag has
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* just left the window.
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*/
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void endDragSession ( in boolean aDoneDrag ) ;
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/**
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* Fire a drag event at the source of the drag
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*/
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[noscript] void fireDragEventAtSource(in EventMessage aEventMessage);
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/**
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* Increase/decrease dragging suppress level by one.
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* If level is greater than one, dragging is disabled.
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*/
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void suppress();
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void unsuppress();
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/**
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* aX and aY are in LayoutDevice pixels.
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*/
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[noscript] void dragMoved(in long aX, in long aY);
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[notxpcom, nostdcall] boolean maybeAddChildProcess(in ContentParentPtr aChild);
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};
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%{ C++
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%}
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