Adding html URI ref object to the build. r=brade sr=kin. Work in progress.
This commit is contained in:
akkana@netscape.com
309
editor/libeditor/html/nsHTMLURIRefObject.cpp
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309
editor/libeditor/html/nsHTMLURIRefObject.cpp
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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/* Here is the list, from beppe and glazman:
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href >> A, AREA, BASE, LINK
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src >> FRAME, IFRAME, IMG, INPUT, SCRIPT
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<META http-equiv="refresh" content="3,http://www.acme.com/intro.html">
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longdesc >> FRAME, IFRAME, IMG
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usemap >> IMG, INPUT, OBJECT
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action >> FORM
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background >> BODY
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codebase >> OBJECT, APPLET
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classid >> OBJECT
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data >> OBJECT
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cite >> BLOCKQUOTE, DEL, INS, Q
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profile >> HEAD
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ARCHIVE attribute on APPLET ; warning, it contains a list of URIs.
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Easier way of organizing the list:
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a: href
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area: href
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base: href
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body: background
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blockquote: cite (not normally rewritable)
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link: href
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frame: src, longdesc
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iframe: src, longdesc
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input: src, usemap
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form: action
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img: src, longdesc, usemap
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script: src
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applet: codebase, archive <list>
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object: codebase, data, classid, usemap
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head: profile
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del: cite
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ins: cite
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q: cite
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*/
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/* Here is how to open a channel for testing
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(from embed/qa/testembed/Tests.cpp):
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nsCOMPtr<nsIChannel> theChannel;
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nsCString uri;
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nsCOMPtr<nsIURI> theURI;
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rv = NS_NewURI(getter_AddRefs(theURI), theSpec);
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if (!theURI)
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error;
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rv = NS_OpenURI(getter_AddRefs(theChannel), theURI, nsnull, theLoadGroup);
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if (!theChannel)
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error;
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nsCOMPtr<nsILoadGroup> theLoadGroup(do_CreateInstance(NS_LOADGROUP_CONTRACTID));
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if (!theLoadGroup)
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error;
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nsCOMPtr<nsIStreamListener> listener(NS_STATIC_CAST(nsIStreamListener*, qaBrowserImpl));
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//nsCOMPtr<nsIWeakReference> thisListener(dont_AddRef(NS_GetWeakReference(listener)));
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//qaWebBrowser->AddWebBrowserListener(thisListener, NS_GET_IID(nsIStreamListener));
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// this calls nsIStreamListener::OnDataAvailable()
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rv = theChannel->AsyncOpen(listener, nsnull);
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nsCOMPtr<nsIRequest> theRequest = do_QueryInterface(theChannel);
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// Now we can do things on nsIRequest (like what?)
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*/
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#include "nsHTMLURIRefObject.h"
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#include "nsAWritableString.h"
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#include "nsString.h"
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#include "nsIDOMAttr.h"
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#include "nsIDOMElement.h"
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// String classes change too often and I can't keep up.
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// Set this macro to this week's approved case-insensitive compare routine.
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#define MATCHES(tagName, str) tagName.EqualsIgnoreCase(str)
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nsHTMLURIRefObject::nsHTMLURIRefObject()
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{
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NS_INIT_REFCNT();
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mCurAttrIndex = mAttributeCnt = 0;
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}
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nsHTMLURIRefObject::~nsHTMLURIRefObject()
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{
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}
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//Interfaces for addref and release and queryinterface
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NS_IMPL_ISUPPORTS(nsHTMLURIRefObject, NS_GET_IID(nsIURIRefObject))
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NS_IMETHODIMP
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nsHTMLURIRefObject::Reset()
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{
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mCurAttrIndex = 0;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLURIRefObject::GetNextURI(nsAWritableString & aURI)
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{
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if (!mNode)
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return NS_ERROR_NOT_INITIALIZED;
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nsAutoString tagName;
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nsresult rv = mNode->GetNodeName(tagName);
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if (NS_FAILED(rv))
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return rv;
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// Loop over attribute list:
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if (!mAttributes)
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{
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nsCOMPtr<nsIDOMElement> element (do_QueryInterface(mNode));
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if (!element)
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return NS_ERROR_INVALID_ARG;
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mCurAttrIndex = 0;
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mNode->GetAttributes(getter_AddRefs(mAttributes));
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if (!mAttributes)
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return NS_ERROR_NOT_INITIALIZED;
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rv = mAttributes->GetLength(&mAttributeCnt);
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NS_ENSURE_SUCCESS(rv, rv);
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if (!mAttributeCnt) return NS_ERROR_FAILURE;
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mCurAttrIndex = 0;
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}
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while (mCurAttrIndex < mAttributeCnt)
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{
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nsCOMPtr<nsIDOMNode> attrNode;
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rv = mAttributes->Item(mCurAttrIndex++, getter_AddRefs(attrNode));
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// XXX Does Item() addref, or not?
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// The comparable code in nsEditor assumes it doesn't.
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NS_ENSURE_SUCCESS(rv, rv);
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if (!attrNode) return NS_ERROR_FAILURE;
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nsCOMPtr<nsIDOMAttr> curAttrNode (do_QueryInterface(attrNode));
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if (!curAttrNode) return NS_ERROR_FAILURE;
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nsString curAttr;
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rv = curAttrNode->GetName(curAttr);
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NS_ENSURE_SUCCESS(rv, rv);
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// href >> A, AREA, BASE, LINK
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if (MATCHES(curAttr, "href"))
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{
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if (!MATCHES(tagName, "a") && !MATCHES(tagName, "area")
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&& !MATCHES(tagName, "base") && !MATCHES(tagName, "link"))
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continue;
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rv = curAttrNode->GetValue(aURI);
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NS_ENSURE_SUCCESS(rv, rv);
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nsString uri (aURI);
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// href pointing to a named anchor doesn't count
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if (aURI.First() != PRUnichar('#'))
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return NS_OK;
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aURI.Truncate();
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return NS_ERROR_INVALID_ARG;
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}
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// src >> FRAME, IFRAME, IMG, INPUT, SCRIPT
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else if (MATCHES(curAttr, "src"))
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{
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if (!MATCHES(tagName, "img")
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&& !MATCHES(tagName, "frame") && !MATCHES(tagName, "iframe")
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&& !MATCHES(tagName, "input") && !MATCHES(tagName, "script"))
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continue;
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return curAttrNode->GetValue(aURI);
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}
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//<META http-equiv="refresh" content="3,http://www.acme.com/intro.html">
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else if (MATCHES(curAttr, "content"))
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{
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if (!MATCHES(tagName, "meta"))
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continue;
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}
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// longdesc >> FRAME, IFRAME, IMG
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else if (MATCHES(curAttr, "longdesc"))
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{
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if (!MATCHES(tagName, "img")
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&& !MATCHES(tagName, "frame") && !MATCHES(tagName, "iframe"))
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continue;
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}
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// usemap >> IMG, INPUT, OBJECT
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else if (MATCHES(curAttr, "usemap"))
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{
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if (!MATCHES(tagName, "img")
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&& !MATCHES(tagName, "input") && !MATCHES(tagName, "object"))
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continue;
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}
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// action >> FORM
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else if (MATCHES(curAttr, "action"))
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{
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if (!MATCHES(tagName, "form"))
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continue;
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}
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// background >> BODY
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else if (MATCHES(curAttr, "background"))
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{
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if (!MATCHES(tagName, "body"))
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continue;
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}
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// codebase >> OBJECT, APPLET
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else if (MATCHES(curAttr, "codebase"))
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{
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if (!MATCHES(tagName, "meta"))
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continue;
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}
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// classid >> OBJECT
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else if (MATCHES(curAttr, "classid"))
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{
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if (!MATCHES(tagName, "object"))
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continue;
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}
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// data >> OBJECT
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else if (MATCHES(curAttr, "data"))
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{
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if (!MATCHES(tagName, "object"))
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continue;
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}
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// cite >> BLOCKQUOTE, DEL, INS, Q
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else if (MATCHES(curAttr, "cite"))
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{
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if (!MATCHES(tagName, "blockquote") && !MATCHES(tagName, "q")
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&& !MATCHES(tagName, "del") && !MATCHES(tagName, "ins"))
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continue;
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}
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// profile >> HEAD
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else if (MATCHES(curAttr, "profile"))
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{
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if (!MATCHES(tagName, "head"))
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continue;
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}
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// archive attribute on APPLET; warning, it contains a list of URIs.
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else if (MATCHES(curAttr, "archive"))
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{
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if (!MATCHES(tagName, "applet"))
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continue;
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}
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}
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// We should return some specific code here to indicate that
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// there are no more, to distinguish that case from real errors.
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return NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP
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nsHTMLURIRefObject::RewriteAllURIs(const nsAReadableString & aOldPat,
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const nsAReadableString & aNewPat,
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PRBool aMakeRel)
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{
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printf("Can't rewrite URIs yet\n");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsHTMLURIRefObject::GetNode(nsIDOMNode** aNode)
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{
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if (!mNode)
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return NS_ERROR_NOT_INITIALIZED;
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if (!aNode)
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return NS_ERROR_NULL_POINTER;
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*aNode = mNode.get();
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NS_ADDREF(*aNode);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLURIRefObject::SetNode(nsIDOMNode *aNode)
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{
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mNode = aNode;
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nsAutoString dummyURI;
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if (NS_SUCCEEDED(GetNextURI(dummyURI)))
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{
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mCurAttrIndex = 0; // Reset so we'll get the first node next time
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return NS_OK;
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}
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// If there weren't any URIs in the attributes,
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// then don't accept this node.
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mNode = 0;
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return NS_ERROR_INVALID_ARG;
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}
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nsresult NS_NewHTMLURIRefObject(nsIURIRefObject** aResult, nsIDOMNode* aNode)
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{
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nsHTMLURIRefObject* refObject = new nsHTMLURIRefObject();
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if (!refObject) return NS_ERROR_OUT_OF_MEMORY;
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nsresult rv = refObject->SetNode(aNode);
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if (!NS_SUCCEEDED(rv)) {
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*aResult = 0;
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delete refObject;
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return rv;
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}
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return refObject->QueryInterface(NS_GET_IID(nsIURIRefObject),
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(void**)aResult);
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}
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