зеркало из https://github.com/mozilla/gecko-dev.git
86 строки
3.5 KiB
C++
86 строки
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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/. */
|
|
|
|
#ifndef nsContentAreaDragDrop_h__
|
|
#define nsContentAreaDragDrop_h__
|
|
|
|
#include "nsCOMPtr.h"
|
|
|
|
#include "nsITransferable.h"
|
|
#include "nsIContentSecurityPolicy.h"
|
|
|
|
class nsICookieJarSettings;
|
|
class nsPIDOMWindowOuter;
|
|
class nsITransferable;
|
|
class nsIContent;
|
|
class nsIFile;
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
class DataTransfer;
|
|
class Selection;
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
//
|
|
// class nsContentAreaDragDrop, used to generate the dragdata
|
|
//
|
|
class nsContentAreaDragDrop {
|
|
public:
|
|
/**
|
|
* Determine what data in the content area, if any, is being dragged.
|
|
*
|
|
* aWindow - the window containing the target node
|
|
* aTarget - the mousedown event target that started the drag
|
|
* aSelectionTargetNode - the node where the drag event should be fired
|
|
* aIsAltKeyPressed - true if the Alt key is pressed. In some cases, this
|
|
* will prevent the drag from occuring. For example,
|
|
* holding down Alt over a link should select the text,
|
|
* not drag the link.
|
|
* aDataTransfer - the dataTransfer for the drag event.
|
|
* aCanDrag - [out] set to true if the drag may proceed, false to stop the
|
|
* drag entirely
|
|
* aSelection - [out] set to the selection being dragged, or null if no
|
|
* selection is being dragged.
|
|
* aDragNode - [out] the link, image or area being dragged, or null if the
|
|
* drag occurred on another element.
|
|
* aPrincipal - [out] set to the triggering principal of the drag, or null if
|
|
* it's from browser chrome or OS
|
|
* aCSP - [out] set to the CSP of the Drag, or null if
|
|
* it's from browser chrome or OS
|
|
* aCookieJarSettings - [out] set to the cookieJarSetting of the Drag, or null
|
|
* if it's from browser chrome or OS
|
|
*/
|
|
static nsresult GetDragData(nsPIDOMWindowOuter* aWindow, nsIContent* aTarget,
|
|
nsIContent* aSelectionTargetNode,
|
|
bool aIsAltKeyPressed,
|
|
mozilla::dom::DataTransfer* aDataTransfer,
|
|
bool* aCanDrag,
|
|
mozilla::dom::Selection** aSelection,
|
|
nsIContent** aDragNode, nsIPrincipal** aPrincipal,
|
|
nsIContentSecurityPolicy** aCsp,
|
|
nsICookieJarSettings** aCookieJarSettings);
|
|
};
|
|
|
|
// this is used to save images to disk lazily when the image data is asked for
|
|
// during the drop instead of when it is added to the drag data transfer. This
|
|
// ensures that the image data is only created when an image drop is allowed.
|
|
class nsContentAreaDragDropDataProvider : public nsIFlavorDataProvider {
|
|
virtual ~nsContentAreaDragDropDataProvider() = default;
|
|
|
|
public:
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSIFLAVORDATAPROVIDER
|
|
|
|
nsresult SaveURIToFile(nsIURI* inSourceURI,
|
|
nsIPrincipal* inTriggeringPrincipal,
|
|
nsICookieJarSettings* inCookieJarSettings,
|
|
nsIFile* inDestFile, nsContentPolicyType inPolicyType,
|
|
bool isPrivate);
|
|
};
|
|
|
|
#endif /* nsContentAreaDragDrop_h__ */
|