mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-02 10:00:54 +00:00
273 lines
7.5 KiB
C++
273 lines
7.5 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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/* 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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#include "HTMLURIRefObject.h"
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#include "mozilla/mozalloc.h"
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#include "mozilla/dom/Attr.h"
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#include "mozilla/dom/Element.h"
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#include "nsAString.h"
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#include "nsDebug.h"
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#include "nsDOMAttributeMap.h"
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#include "nsError.h"
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#include "nsID.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMNode.h"
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#include "nsISupportsUtils.h"
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#include "nsString.h"
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#include "nsGkAtoms.h"
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namespace mozilla {
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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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HTMLURIRefObject::HTMLURIRefObject()
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: mCurAttrIndex(0)
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, mAttributeCnt(0)
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, mAttrsInited(false)
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{
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}
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HTMLURIRefObject::~HTMLURIRefObject()
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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(HTMLURIRefObject, nsIURIRefObject)
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NS_IMETHODIMP
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HTMLURIRefObject::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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HTMLURIRefObject::GetNextURI(nsAString& aURI)
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{
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NS_ENSURE_TRUE(mNode, NS_ERROR_NOT_INITIALIZED);
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nsCOMPtr<dom::Element> element = do_QueryInterface(mNode);
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NS_ENSURE_TRUE(element, NS_ERROR_INVALID_ARG);
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// Loop over attribute list:
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if (!mAttrsInited) {
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mAttrsInited = true;
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mAttributeCnt = element->GetAttrCount();
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NS_ENSURE_TRUE(mAttributeCnt, NS_ERROR_FAILURE);
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mCurAttrIndex = 0;
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}
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while (mCurAttrIndex < mAttributeCnt) {
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BorrowedAttrInfo attrInfo = element->GetAttrInfoAt(mCurAttrIndex++);
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NS_ENSURE_ARG_POINTER(attrInfo.mName);
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// href >> A, AREA, BASE, LINK
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if (attrInfo.mName->Equals(nsGkAtoms::href)) {
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if (!element->IsAnyOfHTMLElements(nsGkAtoms::a,
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nsGkAtoms::area,
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nsGkAtoms::base,
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nsGkAtoms::link)) {
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continue;
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}
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attrInfo.mValue->ToString(aURI);
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// href pointing to a named anchor doesn't count
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if (StringBeginsWith(aURI, NS_LITERAL_STRING("#"))) {
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aURI.Truncate();
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return NS_ERROR_INVALID_ARG;
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}
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return NS_OK;
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}
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// src >> FRAME, IFRAME, IMG, INPUT, SCRIPT
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else if (attrInfo.mName->Equals(nsGkAtoms::src)) {
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if (!element->IsAnyOfHTMLElements(nsGkAtoms::img,
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nsGkAtoms::frame,
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nsGkAtoms::iframe,
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nsGkAtoms::input,
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nsGkAtoms::script)) {
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continue;
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}
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attrInfo.mValue->ToString(aURI);
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return NS_OK;
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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 (attrInfo.mName->Equals(nsGkAtoms::content)) {
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if (!element->IsHTMLElement(nsGkAtoms::meta)) {
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continue;
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}
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// XXXbz And if it is?
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}
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// longdesc >> FRAME, IFRAME, IMG
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else if (attrInfo.mName->Equals(nsGkAtoms::longdesc)) {
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if (!element->IsAnyOfHTMLElements(nsGkAtoms::img,
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nsGkAtoms::frame,
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nsGkAtoms::iframe)) {
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continue;
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}
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// XXXbz And if it is?
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}
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// usemap >> IMG, INPUT, OBJECT
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else if (attrInfo.mName->Equals(nsGkAtoms::usemap)) {
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if (!element->IsAnyOfHTMLElements(nsGkAtoms::img,
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nsGkAtoms::input,
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nsGkAtoms::object)) {
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continue;
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}
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}
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// action >> FORM
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else if (attrInfo.mName->Equals(nsGkAtoms::action)) {
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if (!element->IsHTMLElement(nsGkAtoms::form)) {
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continue;
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}
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// XXXbz And if it is?
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}
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// background >> BODY
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else if (attrInfo.mName->Equals(nsGkAtoms::background)) {
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if (!element->IsHTMLElement(nsGkAtoms::body)) {
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continue;
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}
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// XXXbz And if it is?
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}
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// codebase >> OBJECT
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else if (attrInfo.mName->Equals(nsGkAtoms::codebase)) {
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if (!element->IsHTMLElement(nsGkAtoms::object)) {
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continue;
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}
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// XXXbz And if it is?
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}
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// classid >> OBJECT
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else if (attrInfo.mName->Equals(nsGkAtoms::classid)) {
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if (!element->IsHTMLElement(nsGkAtoms::object)) {
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continue;
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}
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// XXXbz And if it is?
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}
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// data >> OBJECT
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else if (attrInfo.mName->Equals(nsGkAtoms::data)) {
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if (!element->IsHTMLElement(nsGkAtoms::object)) {
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continue;
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}
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// XXXbz And if it is?
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}
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// cite >> BLOCKQUOTE, DEL, INS, Q
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else if (attrInfo.mName->Equals(nsGkAtoms::cite)) {
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if (!element->IsAnyOfHTMLElements(nsGkAtoms::blockquote,
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nsGkAtoms::q,
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nsGkAtoms::del,
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nsGkAtoms::ins)) {
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continue;
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}
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// XXXbz And if it is?
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}
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// profile >> HEAD
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else if (attrInfo.mName->Equals(nsGkAtoms::profile)) {
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if (!element->IsHTMLElement(nsGkAtoms::head)) {
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continue;
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}
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// XXXbz And if it is?
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}
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}
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// Return a code to indicate that there are no more,
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// to distinguish that case from real errors.
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return NS_ERROR_NOT_AVAILABLE;
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}
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NS_IMETHODIMP
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HTMLURIRefObject::RewriteAllURIs(const nsAString& aOldPat,
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const nsAString& aNewPat,
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bool aMakeRel)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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HTMLURIRefObject::GetNode(nsIDOMNode** aNode)
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{
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NS_ENSURE_TRUE(mNode, NS_ERROR_NOT_INITIALIZED);
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NS_ENSURE_TRUE(aNode, 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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HTMLURIRefObject::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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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 = nullptr;
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return NS_ERROR_INVALID_ARG;
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}
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} // namespace mozilla
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nsresult NS_NewHTMLURIRefObject(nsIURIRefObject** aResult, nsIDOMNode* aNode)
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{
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RefPtr<mozilla::HTMLURIRefObject> refObject = new mozilla::HTMLURIRefObject();
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nsresult rv = refObject->SetNode(aNode);
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if (NS_FAILED(rv)) {
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*aResult = 0;
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return rv;
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}
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refObject.forget(aResult);
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return NS_OK;
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}
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