зеркало из https://github.com/mozilla/gecko-dev.git
105 строки
4.4 KiB
C++
105 строки
4.4 KiB
C++
/* -*- Mode: C++; 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/. */
|
|
|
|
#ifndef nsCopySupport_h__
|
|
#define nsCopySupport_h__
|
|
|
|
#include "nsError.h"
|
|
#include "nsIDocument.h"
|
|
#include "nsStringFwd.h"
|
|
#include "mozilla/EventForwards.h"
|
|
|
|
class nsINode;
|
|
class nsISelection;
|
|
class nsIDocument;
|
|
class nsIImageLoadingContent;
|
|
class nsIContent;
|
|
class nsITransferable;
|
|
class nsIPresShell;
|
|
class nsILoadContext;
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
class Selection;
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
class nsCopySupport
|
|
{
|
|
// class of static helper functions for copy support
|
|
public:
|
|
static nsresult ClearSelectionCache();
|
|
static nsresult HTMLCopy(nsISelection *aSel, nsIDocument *aDoc,
|
|
int16_t aClipboardID, bool aWithRubyAnnotation);
|
|
|
|
// Get the selection, or entire document, in the format specified by the mime type
|
|
// (text/html or text/plain). If aSel is non-null, use it, otherwise get the entire
|
|
// doc.
|
|
static nsresult GetContents(const nsACString& aMimeType, uint32_t aFlags, nsISelection *aSel, nsIDocument *aDoc, nsAString& outdata);
|
|
|
|
static nsresult ImageCopy(nsIImageLoadingContent* aImageElement,
|
|
nsILoadContext* aLoadContext,
|
|
int32_t aCopyFlags);
|
|
|
|
// Get the selection as a transferable. Similar to HTMLCopy except does
|
|
// not deal with the clipboard.
|
|
static nsresult GetTransferableForSelection(nsISelection* aSelection,
|
|
nsIDocument* aDocument,
|
|
nsITransferable** aTransferable);
|
|
|
|
// Same as GetTransferableForSelection, but doesn't skip invisible content.
|
|
static nsresult GetTransferableForNode(nsINode* aNode,
|
|
nsIDocument* aDoc,
|
|
nsITransferable** aTransferable);
|
|
/**
|
|
* Retrieve the selection for the given document. If the current focus
|
|
* within the document has its own selection, aSelection will be set to it
|
|
* and this focused content node returned. Otherwise, aSelection will be
|
|
* set to the document's selection and null will be returned.
|
|
*/
|
|
static nsIContent* GetSelectionForCopy(nsIDocument* aDocument,
|
|
mozilla::dom::Selection** aSelection);
|
|
|
|
/**
|
|
* Returns true if a copy operation is currently permitted based on the
|
|
* current focus and selection within the specified document.
|
|
*/
|
|
static bool CanCopy(nsIDocument* aDocument);
|
|
|
|
/**
|
|
* Fires a cut, copy or paste event, on the given presshell, depending
|
|
* on the value of aEventMessage, which should be either eCut, eCopy or
|
|
* ePaste, and perform the default copy action if the event was not
|
|
* cancelled.
|
|
*
|
|
* If aSelection is specified, then this selection is used as the target
|
|
* of the operation. Otherwise, GetSelectionForCopy is used to retrieve
|
|
* the current selection.
|
|
*
|
|
* This will fire a cut, copy or paste event at the node at the start
|
|
* point of the selection. If a cut or copy event is not cancelled, the
|
|
* selection is copied to the clipboard and true is returned. Paste events
|
|
* have no default behaviour but true will be returned. It is expected
|
|
* that the caller will execute any needed default paste behaviour. Also,
|
|
* note that this method only copies text to the clipboard, the caller is
|
|
* responsible for removing the content during a cut operation if true is
|
|
* returned.
|
|
*
|
|
* aClipboardType specifies which clipboard to use, from nsIClipboard.
|
|
*
|
|
* If aActionTaken is non-NULL, it will be set to true if an action was
|
|
* taken, whether it be the default action or the default being prevented.
|
|
*
|
|
* If the event is cancelled or an error occurs, false will be returned.
|
|
*/
|
|
static bool FireClipboardEvent(mozilla::EventMessage aEventMessage,
|
|
int32_t aClipboardType,
|
|
nsIPresShell* aPresShell,
|
|
mozilla::dom::Selection* aSelection,
|
|
bool* aActionTaken = nullptr);
|
|
};
|
|
|
|
#endif
|