Retired Document
Important: This sample code may not represent best practices for current development. The project may use deprecated symbols and illustrate technologies and techniques that are no longer recommended.
MDQueryRef1/Controller.m
/* |
File: Controller.m |
Version: 1.0 |
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. |
("Apple") in consideration of your agreement to the following terms, and your |
use, installation, modification or redistribution of this Apple software |
constitutes acceptance of these terms. If you do not agree with these terms, |
please do not use, install, modify or redistribute this Apple software. |
In consideration of your agreement to abide by the following terms, and subject |
to these terms, Apple grants you a personal, non-exclusive license, under Apple's |
copyrights in this original Apple software (the "Apple Software"), to use, |
reproduce, modify and redistribute the Apple Software, with or without |
modifications, in source and/or binary forms; provided that if you redistribute |
the Apple Software in its entirety and without modifications, you must retain |
this notice and the following text and disclaimers in all such redistributions of |
the Apple Software. Neither the name, trademarks, service marks or logos of |
Apple Computer, Inc. may be used to endorse or promote products derived from the |
Apple Software without specific prior written permission from Apple. Except as |
expressly stated in this notice, no other rights or licenses, express or implied, |
are granted by Apple herein, including but not limited to any patent rights that |
may be infringed by your derivative works or by other works in which the Apple |
Software may be incorporated. |
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO |
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED |
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN |
COMBINATION WITH YOUR PRODUCTS. |
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR |
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION |
OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT |
(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN |
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
Copyright 2005 Apple Computer, Inc., All Rights Reserved |
*/ |
#import "Controller.h" |
@implementation Controller |
- (IBAction)startSearch:(NSSearchField *)sender |
{ |
/* Build up the query string */ |
NSString *queryString; |
NSString *userEnteredString; |
userEnteredString = [searchField stringValue]; |
if (query){ |
/* Stop listening to the notifications */ |
[[NSNotificationCenter defaultCenter] removeObserver:self]; |
/* Release the old query */ |
CFRelease(query); |
query = NULL; |
} |
queryString = [NSString stringWithFormat:@"*='%@'wcd || kMDItemTextContent = '%@'cd",userEnteredString,userEnteredString]; |
query = MDQueryCreate(kCFAllocatorDefault,(CFStringRef)queryString,NULL,(CFArrayRef)[NSArray arrayWithObjects:(id)kMDItemDisplayName,nil]); |
if (query){ |
/* Set up notifications */ |
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(updateData:) |
name:(NSString*)kMDQueryDidFinishNotification object:(id)query]; |
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(updateData:) |
name:(NSString*)kMDQueryProgressNotification object:(id)query]; |
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(updateData:) |
name:(NSString*)kMDQueryDidUpdateNotification object:(id)query]; |
} |
MDQuerySetSearchScope(query, (CFArrayRef)[NSArray arrayWithObjects:(id)kMDQueryScopeHome,nil],0); |
MDQueryExecute(query, kMDQueryWantsUpdates); |
} |
- (void)updateData:(NSNotification *)notification |
{ |
[tableView reloadData]; |
[[tableView window] setTitle:[NSString stringWithFormat: @"%@ - %d matches", [searchField stringValue], MDQueryGetResultCount(query)]]; |
} |
- (void)queryDone:(NSNotification *)notification |
{ |
[self updateData:notification]; |
} |
/* NSTableView data source */ |
- (int)numberOfRowsInTableView:(NSTableView *)sender |
{ |
return query ? MDQueryGetResultCount(query) : 0; |
} |
- (id)tableView:(NSTableView *)sender objectValueForTableColumn:(NSTableColumn *)tableColumn row:(int)row |
{ |
NSString *ident; |
NSObject *object; |
MDItemRef item; |
NSString *path; |
ident = [tableColumn identifier]; |
item = (MDItemRef)MDQueryGetResultAtIndex(query, row); |
if ([ident isEqualToString:@"icon"]) { |
path = (NSString*)MDItemCopyAttribute(item, kMDItemPath); |
object = [[NSWorkspace sharedWorkspace] iconForFile: path]; |
[path release]; |
}else{ |
object = (NSObject*)MDItemCopyAttribute(item, kMDItemDisplayName); |
[object autorelease]; |
} |
return object; |
} |
@end |
Copyright © 2005 Apple Computer, Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2005-06-01