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f4b598bf08
This patch does the following: * It adds nsITransferable::Init(nsILoadContext*). The load context might be null, which means that the transferable is non-private, but if it's non-null, we extract the boolean value for the privacy mode and store it in the transferable. * It adds checks in debug builds to make sure that Init is always called, in form of fatal assertions. * It adds nsIDOMDocument* agruments to nsIClipboardHelper methods which represent the document that the string is coming from. nsIClipboardHelper implementation internally gets the nsILoadContext from that and passes it on to the transferable upon creation. The reason that I did this was that nsIClipboardHelper is supposed to be a high-level helper, and in most of its call sites, we have easy access to a document object. * It modifies all of the call sites of the above interfaces according to this change. * It adds a GetLoadContext helper to nsIDocument to help with changing the call sites.
92 lines
4.0 KiB
C++
92 lines
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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#ifndef nsCopySupport_h__
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#define nsCopySupport_h__
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#include "nscore.h"
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#include "nsINode.h"
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class nsISelection;
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class nsIDocument;
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class nsIImageLoadingContent;
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class nsIContent;
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class nsITransferable;
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class nsACString;
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class nsAString;
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class nsIPresShell;
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class nsILoadContext;
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class nsCopySupport
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{
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// class of static helper functions for copy support
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public:
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static nsresult HTMLCopy(nsISelection *aSel, nsIDocument *aDoc, PRInt16 aClipboardID);
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static nsresult DoHooks(nsIDocument *aDoc, nsITransferable *aTrans,
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bool *aDoPutOnClipboard);
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static nsresult IsPlainTextContext(nsISelection *aSel, nsIDocument *aDoc, bool *aIsPlainTextContext);
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// Get the selection, or entire document, in the format specified by the mime type
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// (text/html or text/plain). If aSel is non-null, use it, otherwise get the entire
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// doc.
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static nsresult GetContents(const nsACString& aMimeType, PRUint32 aFlags, nsISelection *aSel, nsIDocument *aDoc, nsAString& outdata);
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static nsresult ImageCopy(nsIImageLoadingContent* aImageElement,
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nsILoadContext* aLoadContext,
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PRInt32 aCopyFlags);
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// Get the selection as a transferable. Similar to HTMLCopy except does
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// not deal with the clipboard.
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static nsresult GetTransferableForSelection(nsISelection* aSelection,
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nsIDocument* aDocument,
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nsITransferable** aTransferable);
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// Same as GetTransferableForSelection, but doesn't skip invisible content.
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static nsresult GetTransferableForNode(nsINode* aNode,
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nsIDocument* aDoc,
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nsITransferable** aTransferable);
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/**
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* Retrieve the selection for the given document. If the current focus
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* within the document has its own selection, aSelection will be set to it
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* and this focused content node returned. Otherwise, aSelection will be
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* set to the document's selection and null will be returned.
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*/
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static nsIContent* GetSelectionForCopy(nsIDocument* aDocument,
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nsISelection** aSelection);
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/**
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* Returns true if a copy operation is currently permitted based on the
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* current focus and selection within the specified document.
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*/
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static bool CanCopy(nsIDocument* aDocument);
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/**
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* Fires a cut, copy or paste event, on the given presshell, depending
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* on the value of aType, which should be either NS_CUT, NS_COPY or
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* NS_PASTE, and perform the default copy action if the event was not
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* cancelled.
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*
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* If aSelection is specified, then this selection is used as the target
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* of the operation. Otherwise, GetSelectionForCopy is used to retrieve
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* the current selection.
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*
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* This will fire a cut, copy or paste event at the node at the start
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* point of the selection. If a cut or copy event is not cancelled, the
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* selection is copied to the clipboard and true is returned. Paste events
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* have no default behaviour but true will be returned. It is expected
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* that the caller will execute any needed default paste behaviour. Also,
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* note that this method only copies text to the clipboard, the caller is
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* responsible for removing the content during a cut operation if true is
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* returned.
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*
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* If the event is cancelled or an error occurs, false will be returned.
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*/
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static bool FireClipboardEvent(PRInt32 aType,
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nsIPresShell* aPresShell,
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nsISelection* aSelection);
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};
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#endif
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