gecko-dev/camino/CHAboutBox.m

155 строки
4.8 KiB
Objective-C

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 Original Code is Chimera code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Matt Judy
* David Hyatt <hyatt@netscape.com>
* Simon Fraser <sfraser@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#import "CHAboutBox.h"
#include "nsBuildID.h"
@interface CHAboutBox(Private)
- (void)loadWindow;
@end
@implementation CHAboutBox
static CHAboutBox *sharedInstance = nil;
+ (CHAboutBox *)sharedInstance
{
return sharedInstance ? sharedInstance : [[self alloc] init];
}
- (id)init
{
if (sharedInstance) {
[self dealloc];
} else {
sharedInstance = [super init];
}
return sharedInstance;
}
- (IBAction)showPanel:(id)sender
{
if (!creditsField) {
[self loadWindow];
}
if (![window isVisible]) {
currentPosition = 0;
restartAtTop = NO;
startTime = [NSDate timeIntervalSinceReferenceDate] + 3.0;
[creditsField scrollPoint:NSMakePoint( 0, 0 )];
}
[window makeKeyAndOrderFront:nil];
}
- (void)windowDidBecomeKey:(NSNotification *)notification
{
scrollTimer = [NSTimer scheduledTimerWithTimeInterval:0.03
target:self
selector:@selector(scrollCredits:)
userInfo:nil
repeats:YES];
}
- (void)windowDidResignKey:(NSNotification *)notification
{
[scrollTimer invalidate];
}
- (void)scrollCredits:(NSTimer *)timer
{
if ([NSDate timeIntervalSinceReferenceDate] >= startTime)
{
if (restartAtTop) {
startTime = [NSDate timeIntervalSinceReferenceDate] + 3.0;
restartAtTop = NO;
[creditsField scrollPoint:NSMakePoint( 0, 0 )];
return;
}
if (currentPosition >= maxScrollHeight) {
startTime = [NSDate timeIntervalSinceReferenceDate] + 3.0;
currentPosition = 0;
restartAtTop = YES;
} else {
[creditsField scrollPoint:NSMakePoint( 0, currentPosition )];
currentPosition += 1;
}
}
}
- (void)loadWindow
{
NSString *creditsPath;
NSAttributedString *creditsString;
float fieldHeight;
float containerHeight;
if (![NSBundle loadNibNamed:@"AboutBox" owner:self]) {
NSLog( @"Failed to load AboutBox.nib" );
NSBeep();
return;
}
[window setTitle:[NSString stringWithFormat: @"About %@", NSLocalizedStringFromTable(@"CFBundleName", @"InfoPlist", nil)]];
creditsPath = [[NSBundle mainBundle] pathForResource:@"Credits" ofType:@"rtf"];
creditsString = [[NSAttributedString alloc] initWithPath:creditsPath documentAttributes:nil];
[creditsField replaceCharactersInRange:NSMakeRange( 0, 0 )
withRTF:[creditsString RTFFromRange:
NSMakeRange( 0, [creditsString length] )
documentAttributes:nil]];
fieldHeight = [creditsField frame].size.height;
(void)[[creditsField layoutManager] glyphRangeForTextContainer:[creditsField textContainer]];
containerHeight = [[creditsField layoutManager] usedRectForTextContainer:
[creditsField textContainer]].size.height;
maxScrollHeight = containerHeight - fieldHeight;
[buildNumberField setStringValue: [NSString stringWithFormat: NSLocalizedString(@"BuildID", @""), NS_BUILD_ID]];
[window setExcludedFromWindowsMenu:YES];
[window setMenu:nil];
[window center];
}
@end