From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- dom/base/nsCopySupport.h | 101 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 dom/base/nsCopySupport.h (limited to 'dom/base/nsCopySupport.h') diff --git a/dom/base/nsCopySupport.h b/dom/base/nsCopySupport.h new file mode 100644 index 000000000..c03a16047 --- /dev/null +++ b/dom/base/nsCopySupport.h @@ -0,0 +1,101 @@ +/* -*- 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 "mozilla/EventForwards.h" + +class nsINode; +class nsISelection; +class nsIDocument; +class nsIImageLoadingContent; +class nsIContent; +class nsITransferable; +class nsACString; +class nsAString; +class nsIPresShell; +class nsILoadContext; + +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); + static nsresult DoHooks(nsIDocument *aDoc, nsITransferable *aTrans, + bool *aDoPutOnClipboard); + + // 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, + nsISelection** 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, + nsISelection* aSelection, + bool* aActionTaken = nullptr); +}; + +#endif -- cgit v1.2.3