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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /dom/base/nsContentAreaDragDrop.h | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/base/nsContentAreaDragDrop.h')
-rw-r--r-- | dom/base/nsContentAreaDragDrop.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/dom/base/nsContentAreaDragDrop.h b/dom/base/nsContentAreaDragDrop.h new file mode 100644 index 0000000000..ac9eb4b988 --- /dev/null +++ b/dom/base/nsContentAreaDragDrop.h @@ -0,0 +1,83 @@ +/* -*- 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::dom { +class DataTransfer; +class Selection; +} // namespace mozilla::dom + +// +// 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__ */ |