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DiffFileChooser.m
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DiffFileChooser.m
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/*
* DiffFileChooser.m
*
* Copyright (c) 2011-2012, GNUstep Project
*
* Author: Wolfgang Lux <[email protected]>
* Riccardo Mottola <[email protected]>
* Date: March 2011
*
* This file is part of EasyDiff.app.
*
* EasyDiff.app is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* EasyDiff.app is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with EasyDiff.app; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#import "DiffFileChooser.h"
#import "DiffWindowController.h"
#import "FileIconView.h"
#if !defined (GNUSTEP) && (MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4)
#define sel_isEqual(s1,s2) ((s1)==(s2))
#endif
@implementation DiffFileChooser
- (void)awakeFromNib
{
[window setExcludedFromWindowsMenu: YES];
[[NSNotificationCenter defaultCenter]
addObserver: self
selector: @selector(controlTextDidChange:)
name: NSControlTextDidChangeNotification
object: leftPath];
[[NSNotificationCenter defaultCenter]
addObserver: self
selector: @selector(fileIconFileNameDidChange:)
name: FileIconViewFileNameDidChangeNotification
object: leftIcon];
[[NSNotificationCenter defaultCenter]
addObserver: self
selector: @selector(controlTextDidChange:)
name: NSControlTextDidChangeNotification
object: rightPath];
[[NSNotificationCenter defaultCenter]
addObserver: self
selector: @selector(fileIconFileNameDidChange:)
name: FileIconViewFileNameDidChangeNotification
object: rightIcon];
}
- (void)dealloc
{
[[NSNotificationCenter defaultCenter]
removeObserver: self
name: NSControlTextDidChangeNotification
object: leftPath];
[[NSNotificationCenter defaultCenter]
removeObserver: self
name: FileIconViewFileNameDidChangeNotification
object: leftIcon];
[[NSNotificationCenter defaultCenter]
removeObserver: self
name: NSControlTextDidChangeNotification
object: rightPath];
[[NSNotificationCenter defaultCenter]
removeObserver: self
name: FileIconViewFileNameDidChangeNotification
object: rightIcon];
[super dealloc];
}
- (NSString *)leftFileName
{
return [leftIcon fileName];
}
- (NSString *)rightFileName
{
return [rightIcon fileName];
}
- (void)setLeftFileName:(NSString *)fileName
{
[leftPath setStringValue: fileName];
[[NSNotificationCenter defaultCenter]
postNotificationName: NSControlTextDidChangeNotification
object: leftPath];
}
- (void)setRightFileName:(NSString *)fileName
{
[rightPath setStringValue: fileName];
[[NSNotificationCenter defaultCenter]
postNotificationName: NSControlTextDidChangeNotification
object: rightPath];
}
- (IBAction)showWindow: (id)sender
{
[window makeKeyAndOrderFront: sender];
}
- (IBAction)compare: (id)sender
{
[window orderOut: self];
// NB The controller will be released when its window is closed
[[DiffWindowController alloc]
initWithFilename: [self leftFileName]
andFilename: [self rightFileName]];
}
- (IBAction)chooseFile: (id)sender
{
int result;
NSOpenPanel *openPanel;
NSTextField *pathField;
NSString *path;
if (sender == leftButton)
{
pathField = leftPath;
}
else if (sender == rightButton)
{
pathField = rightPath;
}
else
{
return;
}
path = [pathField stringValue];
if ([path length] != 0)
{
path = [path stringByStandardizingPath];
path = [path stringByDeletingLastPathComponent];
}
else
{
path = nil; // this gives us the default path of the open panel
}
openPanel = [NSOpenPanel openPanel];
[openPanel setAllowsMultipleSelection: NO];
result = [openPanel runModalForDirectory: path file: nil types: nil];
if (result == NSOKButton)
{
[pathField setStringValue: [[openPanel filenames] objectAtIndex: 0]];
[[NSNotificationCenter defaultCenter]
postNotificationName: NSControlTextDidChangeNotification
object: pathField];
}
}
- (void)controlTextDidChange: (NSNotification *)notification
{
BOOL ok;
NSTextField *pathField;
NSString *fileName;
pathField = [notification object];
fileName = [[pathField stringValue] stringByStandardizingPath];
if (pathField == leftPath)
{
[leftIcon setFileName: fileName];
}
else if (pathField == rightPath)
{
[rightIcon setFileName: fileName];
}
ok = [self validateUserInterfaceItem: [compareButton cell]];
[compareButton setEnabled: ok];
}
- (void)fileIconFileNameDidChange: (NSNotification *)notification
{
BOOL ok;
NSString *fileName;
FileIconView *iconView;
iconView = [notification object];
fileName = [iconView fileName];
if (iconView == leftIcon)
{
[leftPath setStringValue: fileName];
}
else if (iconView == rightIcon)
{
[rightPath setStringValue: fileName];
}
ok = [self validateUserInterfaceItem: [compareButton cell]];
[compareButton setEnabled: ok];
}
- (BOOL)validateUserInterfaceItem: (id<NSValidatedUserInterfaceItem>)item
{
// validate -compareFiles: action if both paths are files
if (sel_isEqual([item action], @selector(compareFiles:)))
{
BOOL isDir;
NSString *left, *right;
NSFileManager *fm = [NSFileManager defaultManager];
left = [[leftPath stringValue] stringByStandardizingPath];
right = [[rightPath stringValue] stringByStandardizingPath];
return ([fm fileExistsAtPath: left isDirectory: &isDir] && !isDir &&
[fm fileExistsAtPath: right isDirectory: &isDir] && !isDir);
}
// validate every other item by default
return YES;
}
@end