gecko-dev/dom/webbrowserpersist/nsIWebBrowserPersistDocumen...

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/* -*- Mode: IDL; 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/. */
#include "nsISupports.idl"
interface nsIDOMDocument;
interface nsIInputStream;
interface nsIOutputStream;
interface nsITabParent;
interface nsIWebBrowserPersistResourceVisitor;
interface nsIWebBrowserPersistWriteCompletion;
/**
* Interface for the URI-mapping information that can be supplied when
* serializing the DOM of an nsIWebBrowserPersistDocument.
*
* @see nsIWebBrowserPersistDocument
*/
[scriptable, uuid(d52e8b93-2771-45e8-a5b0-6e12b667046b)]
interface nsIWebBrowserPersistURIMap : nsISupports
{
/**
* The number of URI mappings.
*/
readonly attribute unsigned long numMappedURIs;
/**
* Obtain the URI mapping at the given index, which must be less than
* numMappedURIs, as a pair of URI spec strings.
*/
void getURIMapping(in unsigned long aIndex,
out AUTF8String aMapFrom,
out AUTF8String aMapTo);
/**
* The spec of the base URI that the document will have after it is
* serialized.
*/
readonly attribute AUTF8String targetBaseURI;
};
/**
* Interface representing a document that can be serialized with
* nsIWebBrowserPersist; it may or may not be in this process. Some
* information is exposed as attributes, which may or may not reflect
* changes made to the underlying document; most of these are
* self-explanatory from their names and types.
*/
[scriptable, uuid(74aa4918-5d15-46b6-9ccf-74f9696d721d)]
interface nsIWebBrowserPersistDocument : nsISupports
{
readonly attribute boolean isPrivate;
readonly attribute AUTF8String documentURI;
readonly attribute AUTF8String baseURI;
readonly attribute ACString contentType;
readonly attribute ACString characterSet;
readonly attribute AString title;
readonly attribute AString referrer;
readonly attribute AString contentDisposition;
readonly attribute nsIInputStream postData;
/**
* The cache key. Unlike in nsISHEntry, where it's wrapped in an
* nsISupportsPRUint32, this is just the integer.
*/
readonly attribute unsigned long cacheKey;
/**
* This attribute is set by nsIWebBrowserPersist implementations to
* propagate persist flags that apply to the DOM traversal and
* serialization (rather than to managing file I/O).
*/
attribute unsigned long persistFlags;
/**
* Walk the DOM searching for external resources needed to render it.
* The visitor callbacks may be called either before or after
* readResources returns.
*
* @see nsIWebBrowserPersistResourceVisitor
*/
void readResources(in nsIWebBrowserPersistResourceVisitor aVisitor);
/**
* Serialize the document's DOM.
*
* @param aStream The output stream to write the document to.
*
* @param aURIMap Optional; specifies URI rewriting to perform on
* external references (as read by readResources).
* If given, also causes relative hyperlinks to be
* converted to absolute in the written text.
*
* @param aRequestedContentType
* The desired MIME type to save the document as;
* optional and defaults to the document's type.
* (If no encoder exists for that type, "text/html"
* is used instead.)
*
* @param aEncoderFlags Flags to pass to the encoder.
*
* @param aWrapColumn Desired text width, ignored if wrapping is not
* specified by the encoding flags, or if 0.
*
* @param aCompletion Callback invoked when writing is complete.
* It may be called either before or after writeContent
* returns.
*
* @see nsIDocumentEncoder
*/
void writeContent(in nsIOutputStream aStream,
in nsIWebBrowserPersistURIMap aURIMap,
in ACString aRequestedContentType,
in unsigned long aEncoderFlags,
in unsigned long aWrapColumn,
in nsIWebBrowserPersistWriteCompletion aCompletion);
};
/**
* Asynchronous visitor that receives external resources linked by an
* nsIWebBrowserPersistDocument and which are needed to render the
* document.
*/
[scriptable, uuid(8ce37706-b7d3-481a-be68-54f174fc0d0a)]
interface nsIWebBrowserPersistResourceVisitor : nsISupports
{
/**
* Indicates a resource that is not a document; e.g., an image, script,
* or stylesheet.
*
* @param aDocument The document containing the reference.
* @param aURI The absolute URI spec for the referenced resource.
*/
void visitResource(in nsIWebBrowserPersistDocument aDocument,
in AUTF8String aURI);
/**
* Indicates a subdocument resource; e.g., a frame or iframe.
*
* @param aDocument The document containing the reference.
* @param aSubDocument The referenced document.
*/
void visitDocument(in nsIWebBrowserPersistDocument aDocument,
in nsIWebBrowserPersistDocument aSubDocument);
/**
* Indicates that the document traversal is complete.
*
* @param aDocument The document that was being traversed.
* @param aStatus Indicates whether the traversal encountered an error.
*/
void endVisit(in nsIWebBrowserPersistDocument aDocument,
in nsresult aStatus);
};
/**
* Asynchronous callback for when nsIWebBrowserPersistDocument is finished
* serializing the document's DOM.
*/
[scriptable, function, uuid(a07e6892-38ae-4207-8340-7fa6ec446ed6)]
interface nsIWebBrowserPersistWriteCompletion : nsISupports
{
/**
* Indicates that serialization is finished.
*
* @param aDocument The document that was being serialized.
*
* @param aStream The stream that was being written to. If it
* needs to be closed, the callback must do that;
* the serialization process leaves it open.
*
* @param aContentType The content type with which the document was
* actually serialized; this may be useful to set
* metadata on the result, or if uploading it.
*
* @param aStatus Indicates whether serialization encountered an error.
*/
void onFinish(in nsIWebBrowserPersistDocument aDocument,
in nsIOutputStream aStream,
in ACString aContentType,
in nsresult aStatus);
};
/**
* Asynchronous callback for creating a persistable document from some
* other object.
*
* @see nsIWebBrowserPersistable.
*/
[scriptable, uuid(321e3174-594f-4036-b7be-791b821bd376)]
interface nsIWebBrowserPersistDocumentReceiver : nsISupports
{
void onDocumentReady(in nsIWebBrowserPersistDocument aDocument);
void onError(in nsresult aFailure);
};