mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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188 lines
5.5 KiB
C++
188 lines
5.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* 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
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Aaron Leventhal <aleventh@us.ibm.com> (original author)
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* Alexander Surkov <surkov.alexander@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsHTMLLinkAccessible.h"
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#include "nsILink.h"
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////////////////////////////////////////////////////////////////////////////////
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// nsHTMLLinkAccessible
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nsHTMLLinkAccessible::nsHTMLLinkAccessible(nsIDOMNode* aDomNode,
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nsIWeakReference* aShell):
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nsHyperTextAccessibleWrap(aDomNode, aShell)
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{
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}
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// Expose nsIAccessibleHyperLink unconditionally
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NS_IMPL_ISUPPORTS_INHERITED1(nsHTMLLinkAccessible, nsHyperTextAccessibleWrap,
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nsIAccessibleHyperLink)
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////////////////////////////////////////////////////////////////////////////////
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// nsIAccessible
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NS_IMETHODIMP
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nsHTMLLinkAccessible::GetName(nsAString& aName)
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{
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aName.Truncate();
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if (IsDefunct())
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return NS_ERROR_FAILURE;
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nsCOMPtr<nsIContent> content(do_QueryInterface(mDOMNode));
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return AppendFlatStringFromSubtree(content, &aName);
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}
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NS_IMETHODIMP
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nsHTMLLinkAccessible::GetRole(PRUint32 *aRole)
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{
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NS_ENSURE_ARG_POINTER(aRole);
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*aRole = nsIAccessibleRole::ROLE_LINK;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLLinkAccessible::GetState(PRUint32 *aState, PRUint32 *aExtraState)
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{
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nsresult rv = nsHyperTextAccessibleWrap::GetState(aState, aExtraState);
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NS_ENSURE_SUCCESS(rv, rv);
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if (!mDOMNode)
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return NS_OK;
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*aState &= ~nsIAccessibleStates::STATE_READONLY;
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nsCOMPtr<nsIContent> content(do_QueryInterface(mDOMNode));
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if (content && content->HasAttr(kNameSpaceID_None,
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nsAccessibilityAtoms::name)) {
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// This is how we indicate it is a named anchor
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// In other words, this anchor can be selected as a location :)
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// There is no other better state to use to indicate this.
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*aState |= nsIAccessibleStates::STATE_SELECTABLE;
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}
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nsCOMPtr<nsILink> link = do_QueryInterface(mDOMNode);
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NS_ENSURE_STATE(link);
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nsLinkState linkState;
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link->GetLinkState(linkState);
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if (linkState == eLinkState_NotLink) {
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// This is a named anchor, not a link with also a name attribute. bail out.
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return NS_OK;
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}
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*aState |= nsIAccessibleStates::STATE_LINKED;
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if (linkState == eLinkState_Visited)
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*aState |= nsIAccessibleStates::STATE_TRAVERSED;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLLinkAccessible::GetValue(nsAString& aValue)
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{
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aValue.Truncate();
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nsresult rv = nsHyperTextAccessible::GetValue(aValue);
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NS_ENSURE_SUCCESS(rv, rv);
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if (!aValue.IsEmpty())
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return NS_OK;
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nsCOMPtr<nsIPresShell> presShell(do_QueryReferent(mWeakShell));
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if (mDOMNode && presShell)
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return presShell->GetLinkLocation(mDOMNode, aValue);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLLinkAccessible::GetNumActions(PRUint8 *aNumActions)
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{
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NS_ENSURE_ARG_POINTER(aNumActions);
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*aNumActions = 1;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLLinkAccessible::GetActionName(PRUint8 aIndex, nsAString& aName)
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{
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// Action 0 (default action): Jump to link
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aName.Truncate();
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if (aIndex != eAction_Jump)
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return NS_ERROR_INVALID_ARG;
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aName.AssignLiteral("jump");
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLLinkAccessible::DoAction(PRUint8 aIndex)
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{
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// Action 0 (default action): Jump to link
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if (aIndex != eAction_Jump)
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return NS_ERROR_INVALID_ARG;
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if (IsDefunct())
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return NS_ERROR_FAILURE;
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nsCOMPtr<nsIContent> content(do_QueryInterface(mDOMNode));
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return DoCommand(content);
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIAccessibleHyperLink
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NS_IMETHODIMP
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nsHTMLLinkAccessible::GetURI(PRInt32 aIndex, nsIURI **aURI)
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{
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NS_ENSURE_ARG_POINTER(aURI);
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*aURI = nsnull;
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if (aIndex != 0)
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return NS_ERROR_INVALID_ARG;
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nsCOMPtr<nsILink> link(do_QueryInterface(mDOMNode));
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NS_ENSURE_STATE(link);
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return link->GetHrefURI(aURI);
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}
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