зеркало из https://github.com/mozilla/gecko-dev.git
163 строки
3.5 KiB
C++
163 строки
3.5 KiB
C++
/* -*- 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 Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* 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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#include "nsNativeAppSupport.h"
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#include "nsString.h"
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#include <Gestalt.h>
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#include <Dialogs.h>
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#include <Resources.h>
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#include "nsIObserver.h"
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#define rSplashDialog 512
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class nsSplashScreenMac : public nsISplashScreen,
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public nsIObserver
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{
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public:
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// dialog itemse
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enum {
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eSplashPictureItem = 1,
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eSplashStatusTextItem
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};
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nsSplashScreenMac();
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virtual ~nsSplashScreenMac();
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NS_DECL_ISUPPORTS
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NS_IMETHOD Show();
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NS_IMETHOD Hide();
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NS_DECL_NSIOBSERVER
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protected:
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DialogPtr mDialog;
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}; // class nsSplashScreenMac
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nsSplashScreenMac::nsSplashScreenMac()
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: mDialog(nsnull)
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{
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NS_INIT_REFCNT();
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}
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nsSplashScreenMac::~nsSplashScreenMac()
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{
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Hide();
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}
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NS_IMPL_ISUPPORTS2(nsSplashScreenMac, nsISplashScreen, nsIObserver);
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NS_IMETHODIMP
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nsSplashScreenMac::Show()
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{
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mDialog = ::GetNewDialog(rSplashDialog, nil, (WindowPtr)-1L);
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if (!mDialog) return NS_ERROR_FAILURE;
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#if TARGET_CARBON
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::ShowWindow(GetDialogWindow(mDialog));
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::SetPortDialogPort(mDialog);
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#else
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::ShowWindow(mDialog);
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::SetPort(mDialog);
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#endif
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::DrawDialog(mDialog); // we don't handle events for this dialog, so we
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// need to draw explicitly. Yuck.
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return NS_OK;
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}
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NS_IMETHODIMP
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nsSplashScreenMac::Hide()
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{
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if (mDialog)
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{
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::DisposeDialog( mDialog );
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mDialog = nsnull;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsSplashScreenMac::Observe(nsISupports *aSubject, const PRUnichar *aTopic, const PRUnichar *someData)
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{
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// update a string in the dialog
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nsCAutoString statusString;
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statusString.AssignWithConversion(someData);
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Handle item = nsnull;
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Rect itemRect;
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short itemType;
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::GetDialogItem(mDialog, eSplashStatusTextItem, &itemType, &item, &itemRect);
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if (!item) return NS_OK;
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// convert string to Pascal string
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Str255 statusPStr;
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PRInt32 maxLen = statusString.Length();
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if (maxLen > 254)
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maxLen = 254;
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strncpy((char *)&statusPStr[1], (const char *)statusString, maxLen);
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statusPStr[0] = maxLen;
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::SetDialogItemText(item, statusPStr);
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::DrawDialog(mDialog);
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return NS_OK;
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}
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#pragma mark -
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nsresult NS_CreateSplashScreen(nsISplashScreen**aResult)
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{
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if ( aResult ) {
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*aResult = new nsSplashScreenMac;
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if ( *aResult ) {
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NS_ADDREF( *aResult );
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return NS_OK;
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} else {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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} else {
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return NS_ERROR_NULL_POINTER;
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}
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}
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PRBool NS_CanRun()
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{
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long response = 0;
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OSErr err = ::Gestalt (gestaltSystemVersion, &response);
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if ( err || response < 0x850)
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{
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::StopAlert (5000, NULL);
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return PR_FALSE;
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}
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return PR_TRUE;
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}
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