Extension to add builtin accessibility. In the future it will support text-to-speech and braille displays for visually impaired users. See README, bug=65158, r=jst, sr=vidur.

This commit is contained in:
aaronl%chorus.net 2001-02-16 04:11:39 +00:00
Родитель 591f42ab3e
Коммит b35c1aeed1
6 изменённых файлов: 502 добавлений и 32 удалений

Просмотреть файл

@ -31,7 +31,7 @@ VPATH = .
include $(DEPTH)/config/autoconf.mk
DIRS = accessproxy accessiblehandler speechout
DIRS = accessproxy
include $(topsrcdir)/config/rules.mk

Просмотреть файл

@ -0,0 +1,276 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* The Initial Developer of the Original Code is Aaron Leventhal.
* Portionsk created by Aaron Leventhal are Copyright (C) 2001
* Aaron Leventhal. All Rights Reserved.
*
* Alternatively, the contents of this file may be used under the terms
* of the GNU General Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above. If you
* wish to allow use of your version of this file only under the terms of
* the GPL and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the
* GPL. If you do not delete the provisions above, a recipient may use
* your version of this file under either the MPL or the GPL.
*
* Contributor(s):
*/
#include "nsCOMPtr.h"
#include "nsMemory.h"
#include "nsIServiceManager.h"
#include "nsIGenericFactory.h"
#include "nsIAppShellComponent.h"
#include "nsIWebProgress.h"
#include "nsIDocumentLoader.h"
#include "nsCURILoader.h"
#include "nsIDocShell.h"
#include "nsIDOMWindow.h"
#include "nsIDOMWindowInternal.h"
#include "nsIDOMEventTarget.h"
#include "nsIRegistry.h"
#include "nsString.h"
#include "nsIDOMNode.h"
#include "nsIPresShell.h"
#include "nsIDOMDocument.h"
#include "nsIDocument.h"
#include "nsISelection.h"
#include "nsISelectionController.h"
#include "nsIFrameSelection.h"
#include "nsICaret.h"
// Header for this class
#include "nsAccessProxy.h"
#define NS_DEBUG_ACCESS_BUILTIN 1
////////////////////////////////////////////////////////////////////////
NS_IMPL_ISUPPORTS4(nsAccessProxy, nsIAppShellComponent, nsISupportsWeakReference, nsIWebProgressListener, nsIDOMEventListener)
nsAccessProxy* nsAccessProxy::mInstance = nsnull;
nsAccessProxy::nsAccessProxy()
{
NS_INIT_REFCNT();
}
nsAccessProxy::~nsAccessProxy()
{
printf("%s","\n\n\n\nBYE BYE BYE BYE \n\n\n\n");
}
nsAccessProxy *nsAccessProxy::GetInstance()
{
if (mInstance == nsnull) {
mInstance = new nsAccessProxy();
// Will be released in the module destructor
NS_IF_ADDREF(mInstance);
}
NS_IF_ADDREF(mInstance);
return mInstance;
}
void nsAccessProxy::ReleaseInstance()
{
NS_IF_RELEASE(nsAccessProxy::mInstance);
//return NS_OK;
}
nsresult nsAccessProxy::HandleEvent(nsIDOMEvent* aEvent)
{
nsresult rv;
//////// Get Type of Event into a string called eventName ///////
nsAutoString eventNameStr;
rv=aEvent->GetType(eventNameStr);
if (NS_FAILED(rv))
return rv;
// Print event name and styles debugging messages
#ifdef NS_DEBUG_ACCESS_BUILTIN
printf("\n==== %s event occurred ====\n",NS_ConvertUCS2toUTF8(eventNameStr).get());
#endif
////////// Get Target Node - place in document where event was fired ////////////
nsCOMPtr<nsIDOMEventTarget> targetNode;
rv = aEvent->GetOriginalTarget(getter_AddRefs(targetNode));
if (NS_FAILED(rv))
return rv;
if (!targetNode)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIDOMNode> domNode = do_QueryInterface(targetNode);
if (!domNode)
return NS_OK;
// get the Document and PresShell
nsCOMPtr<nsIDOMDocument> domDoc;
nsCOMPtr<nsIPresShell> presShell;
nsCOMPtr<nsIDocument> doc;
domNode->GetOwnerDocument(getter_AddRefs(domDoc));
if (domDoc) {
doc = do_QueryInterface(domDoc);
if (doc && doc->GetNumberOfShells()>0)
presShell= dont_AddRef(doc->GetShellAt(0));
}
//return NS_OK;
/*
if (presShell && eventNameStr.EqualsWithConversion("click")) {
nsCOMPtr<nsIFrameSelection> frameSelection;
presShell->GetFrameSelection(getter_AddRefs(frameSelection));
if (!frameSelection)
return NS_OK;
nsCOMPtr<nsISelection> domSelection;
frameSelection->GetSelection(nsISelectionController::SELECTION_NORMAL,
getter_AddRefs(domSelection));
if (!domSelection)
return NS_OK;
nsCOMPtr<nsIDOMNode> focusDomNode;
domSelection->GetAnchorNode(getter_AddRefs(focusDomNode));
if (focusDomNode) domNode=focusDomNode;
// first, tell the caret which selection to use
nsCOMPtr<nsICaret> caret;
presShell->GetCaret(getter_AddRefs(caret));
if (!caret) return NS_OK;
caret->SetCaretDOMSelection(domSelection);
// tell the pres shell to enable the caret, rather than settings its visibility directly.
// this way the presShell's idea of caret visibility is maintained.
nsCOMPtr<nsISelectionController> selCon = do_QueryInterface(presShell);
if (!selCon) return NS_ERROR_NO_INTERFACE;
selCon->SetCaretEnabled(PR_TRUE);
caret->SetCaretVisible(PR_TRUE);
}
*/
return NS_OK;
}
// This method gets called on application startup
NS_IMETHODIMP nsAccessProxy::Initialize(nsIAppShellService *anAppShell,
nsICmdLineService *aCmdLineService)
{
nsCOMPtr<nsIWebProgress> progress(do_GetService(NS_DOCUMENTLOADER_SERVICE_CONTRACTID));
nsresult rv = NS_ERROR_FAILURE;
if (progress) {
rv = progress->AddProgressListener(NS_STATIC_CAST(nsIWebProgressListener*,this));
if (NS_SUCCEEDED(rv))
AddRef();
}
return rv;
}
// This method gets called on application shutdown
NS_IMETHODIMP nsAccessProxy::Shutdown()
{
Release();
return NS_OK;
}
NS_IMETHODIMP nsAccessProxy::OnStateChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest, PRInt32 aStateFlags, PRUint32 aStatus)
{
/* PRInt32 aStateFlags ...
*
* ===== What has happened =====
* STATE_START, STATE_REDIRECTING, STATE_TRANSFERRING,
* STATE_NEGOTIATING, STATE_STOP
* ===== Where did it occur? =====
* STATE_IS_REQUEST, STATE_IS_DOCUMENT, STATE_IS_NETWORK, STATE_IS_WINDOW
* ===== Security info =====
* STATE_IS_INSECURE, STATE_IS_BROKEN, STATE_IS_SECURE, STATE_SECURE_HIGH
* STATE_SECURE_MED, STATE_SECURE_LOW
*
*/
nsresult rv;
if ((aStateFlags & (STATE_STOP|STATE_START)) && (aStateFlags & STATE_IS_DOCUMENT)) {
nsCOMPtr<nsIDOMWindow> domWindow;
aWebProgress->GetDOMWindow(getter_AddRefs(domWindow));
if (domWindow) {
nsCOMPtr<nsIDOMEventTarget> eventTarget = do_QueryInterface(domWindow);
nsCOMPtr<nsIDOMWindowInternal> windowInternal = do_QueryInterface(domWindow);
nsCOMPtr<nsIDOMWindowInternal> opener;
if (windowInternal)
windowInternal->GetOpener(getter_AddRefs(opener));
if (eventTarget && opener) {
eventTarget->AddEventListener(NS_LITERAL_STRING("keyup"), this, PR_FALSE);
eventTarget->AddEventListener(NS_LITERAL_STRING("keypress"), this, PR_FALSE);
eventTarget->AddEventListener(NS_LITERAL_STRING("focus"), this, PR_FALSE);
eventTarget->AddEventListener(NS_LITERAL_STRING("load"), this, PR_FALSE);
eventTarget->AddEventListener(NS_LITERAL_STRING("click"), this, PR_FALSE); // for debugging
}
}
}
return NS_OK;
}
/* void onProgressChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in long aCurSelfProgress, in long aMaxSelfProgress, in long aCurTotalProgress, in long aMaxTotalProgress); */
NS_IMETHODIMP nsAccessProxy::OnProgressChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest, PRInt32 aCurSelfProgress, PRInt32 aMaxSelfProgress,
PRInt32 aCurTotalProgress, PRInt32 aMaxTotalProgress)
{
// We can use this to report the percentage done
#ifdef NS_DEBUG_ACCESS_BUILTIN
// printf ("** nsAccessProxy ** OnProgressChange ** \n");
#endif
return NS_OK;
}
/* void onLocationChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in nsIURI location); */
NS_IMETHODIMP nsAccessProxy::OnLocationChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest, nsIURI *location)
{
// Load has been verified, it will occur, about to commence
#ifdef NS_DEBUG_ACCESS_BUILTIN
// printf ("** nsAccessProxy ** OnLocationChange ** \n");
#endif
return NS_OK;
}
/* void onStatusChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in nsresult aStatus, in wstring aMessage); */
NS_IMETHODIMP nsAccessProxy::OnStatusChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest, nsresult aStatus, const PRUnichar *aMessage)
{
// Status bar has changed
#ifdef NS_DEBUG_ACCESS_BUILTIN
// printf ("** nsAccessProxy ** OnStatusChange ** \n");
#endif
return NS_OK;
}
/* void onSecurityChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in long state); */
NS_IMETHODIMP nsAccessProxy::OnSecurityChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest, PRInt32 state)
{
// Security setting has changed
#ifdef NS_DEBUG_ACCESS_BUILTIN
printf ("** nsAccessProxy ** OnSecurityChange ** \n");
#endif
return NS_OK;
}

Просмотреть файл

@ -0,0 +1,77 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* The Initial Developer of the Original Code is Aaron Leventhal.
* Portions created by Aaron Leventhal are Copyright (C) 2001
* Aaron Leventhal. All Rights Reserved.
*
* Alternatively, the contents of this file may be used under the terms
* of the GNU General Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above. If you
* wish to allow use of your version of this file only under the terms of
* the GPL and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the
* GPL. If you do not delete the provisions above, a recipient may use
* your version of this file under either the MPL or the GPL.
*
* Contributor(s):
*/
/**
* This file is the header of an implementation
* nsAccessProxy of the nsIAccessProxy interface.
*/
#include "nsIAccessProxy.h"
#include "nsIDOMEventListener.h"
#include "nsIAppShellComponent.h"
#include "nsIWebProgressListener.h"
#include "nsWeakReference.h"
/**
* AccessProxy is an implementation of the nsIAccessProxy interface. In XPCOM,
* there can be more than one implementation of an given interface. Class
* IDs (CIDs) uniquely identify a particular implementation of an interface.
* Interface IDs (IIDs) uniquely identify an interface.
*
* The CID is also a unique number that looks just like an IID
* and uniquely identifies an implementation
* {7CB5B7A0-07D7-11d3-BDE2-000064657374}
*/
class nsAccessProxy : public nsIDOMEventListener,
public nsIAppShellComponent,
public nsIWebProgressListener,
public nsSupportsWeakReference
{
public:
nsAccessProxy();
virtual ~nsAccessProxy();
NS_DEFINE_STATIC_CID_ACCESSOR(NS_ACCESSPROXY_CID);
NS_DECL_ISUPPORTS // This macro expands into declaration of nsISupports interface
NS_DECL_NSIAPPSHELLCOMPONENT
NS_DECL_NSIWEBPROGRESSLISTENER
//NS_DECL_NSIACCESSPROXY
virtual nsresult HandleEvent(nsIDOMEvent *event); // This compiles on Windows
static nsAccessProxy *GetInstance();
static void ReleaseInstance(void);
private:
static nsAccessProxy *mInstance;
};

Просмотреть файл

@ -0,0 +1,93 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* The Initial Developer of the Original Code is Aaron Leventhal.
* Portionsk created by Aaron Leventhal are Copyright (C) 2001
* Aaron Leventhal. All Rights Reserved.
*
* Alternatively, the contents of this file may be used under the terms
* of the GNU General Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above. If you
* wish to allow use of your version of this file only under the terms of
* the GPL and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the
* GPL. If you do not delete the provisions above, a recipient may use
* your version of this file under either the MPL or the GPL.
*
* Contributor(s):
*/
#include "nsIGenericFactory.h"
#include "nsAccessProxy.h"
#include "nsIAppShellComponent.h"
#include "nsIRegistry.h"
#include "prprf.h"
#define NS_ACESSPROXY_CONTRACTID NS_IAPPSHELLCOMPONENT_CONTRACTID "/accessproxy;1"
////////////////////////////////////////////////////////////////////////
// Define a table of CIDs implemented by this module along with other
// information like the function to create an instance, contractid, and
// class name.
//
// The Registration and Unregistration proc are optional in the structure.
//
// This function is called at component registration time
static NS_METHOD nsAccessProxyRegistrationProc(nsIComponentManager *aCompMgr,
nsIFile *aPath, const char *registryLocation, const char *componentType)
{
// This function performs the extra step of installing us as
// an application component. This makes sure that we're
// initialized on application startup.
// get the registry
nsIRegistry* registry;
nsresult rv = nsServiceManager::GetService(NS_REGISTRY_CONTRACTID,
NS_GET_IID(nsIRegistry), (nsISupports**)&registry);
if (NS_SUCCEEDED(rv)) {
registry->OpenWellKnownRegistry(nsIRegistry::ApplicationComponentRegistry);
char buffer[256];
char *cid = nsAccessProxy::GetCID().ToString();
PR_snprintf(buffer, sizeof buffer, "%s/%s", NS_IAPPSHELLCOMPONENT_KEY,
cid ? cid : "unknown" );
nsCRT::free(cid);
nsRegistryKey key;
rv = registry->AddSubtree(nsIRegistry::Common, buffer, &key);
nsServiceManager::ReleaseService(NS_REGISTRY_CONTRACTID, registry);
}
return rv;
}
NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(nsAccessProxy,nsAccessProxy::GetInstance);
static void PR_CALLBACK AccessProxyModuleDtor(nsIModule* self)
{
nsAccessProxy::ReleaseInstance();
}
static nsModuleComponentInfo components[] =
{
{ "AccessProxy Component", NS_ACCESSPROXY_CID, NS_ACCESSPROXY_CONTRACTID,
nsAccessProxyConstructor, nsAccessProxyRegistrationProc,
nsnull // Unregistration proc
}
};
NS_IMPL_NSGETMODULE_WITH_DTOR("nsAccessProxy", components, AccessProxyModuleDtor)

Просмотреть файл

@ -0,0 +1,55 @@
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
* The Initial Developer of the Original Code is Aaron Leventhal.
* Portions created by Aaron Leventhal are Copyright (C) 2001
* Aaron Leventhal. All Rights Reserved.
* Alternatively, the contents of this file may be used under the terms
* of the GNU General Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above. If you
* wish to allow use of your version of this file only under the terms of
* the GPL and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the
* GPL. If you do not delete the provisions above, a recipient may use
* your version of this file under either the MPL or the GPL.
* Contributor(s):
*/
/**
* A accessproxy of XPConnect. This file contains a accessproxy interface.
*
*/
#include "nsISupports.idl"
#include "domstubs.idl"
%{ C++
#include "nsIDOMEvent.h"
#define NS_ACCESSPROXY_CID \
{ 0x7cb5b7a0, 0x7d7, 0x11d3, { 0xbd, 0xe2, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74 } }
#define NS_ACCESSPROXY_CONTRACTID NS_IAPPSHELLCOMPONENT_CONTRACTID "/accessproxy;1"
%}
interface nsIDOMEvent;
[uuid(57e45180-7b41-4815-beec-6cac25dfac57)]
interface nsIAccessProxy : nsISupports
{
void handleEvent(in nsIDOMEvent event);
};

Просмотреть файл

@ -1,31 +0,0 @@
# The contents of this file are subject to the Mozilla Public License
# Version 1.1 (the "License"); you may not use this file except in
# compliance with the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
# Software distributed under the License is distributed on an "AS IS"
# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
# License for the specific language governing rights and limitations
# under the License.
# The Initial Developer of the Original Code is Aaron Leventhal.
# Portions created by Aaron Leventhal are Copyright (C) 2001
# Aaron Leventhal. All Rights Reserved.
# Alternatively, the contents of this file may be used under the terms
# of the GNU General Public License (the "GPL"), in which case the
# provisions of the GPL are applicable instead of those above. If you
# wish to allow use of your version of this file only under the terms of
# the GPL and not to allow others to use your version of this file under
# the MPL, indicate your decision by deleting the provisions above and
# replace them with the notice and other provisions required by the
# GPL. If you do not delete the provisions above, a recipient may use
# your version of this file under either the MPL or the GPL.
# Contributor(s):
DEPTH=..\..
DIRS=accessproxy accessiblehandler speechout
include <$(DEPTH)\config\rules.mak>