easywindow.m

来自「处理WORD文档的」· M 代码 · 共 80 行

#import <AppKit/AppKit.h>
#import "EasyWindow.h"


#import "DRController.h"

@implementation EasyWindow

- (void)awakeFromNib
{
    [self registerForDraggedTypes:[NSArray arrayWithObject:NSFilenamesPboardType]];
}


- (unsigned int) draggingEnteredOrUpdated:sender
{
    NSPasteboard *pboard = [sender draggingPasteboard];
    id source = [sender draggingSource];
    NSString *type = [pboard availableTypeFromArray:[NSArray arrayWithObject:NSFilenamesPboardType]];

    if ([source respondsToSelector:@selector(window)] && [source window] == self) return NSDragOperationNone;
    
        if (type) {
            if ([type isEqualToString:NSFilenamesPboardType]) {
                NSArray *filenames = [pboard propertyListForType:NSFilenamesPboardType];
                unsigned i = [filenames count];
                NSFileManager *fm = [NSFileManager defaultManager];
                BOOL isDir;
                if (i == 1) {
                    NSString *filename = [filenames objectAtIndex:0];
                    if ([fm fileExistsAtPath:filename isDirectory:&isDir] && !isDir) 
                         return NSDragOperationCopy;
                }
            }
        }
    return NSDragOperationNone;
}

- (unsigned int) draggingEntered:sender
{
    return [self draggingEnteredOrUpdated:sender];
}

- (unsigned int) draggingUpdated:sender
{
    return [self draggingEnteredOrUpdated:sender];
}

- (BOOL) prepareForDragOperation:sender
{
    return YES;
}

- (BOOL) performDragOperation:(id <NSDraggingInfo>)sender
{
    return YES;
}

- (void)concludeDragOperation:(id <NSDraggingInfo>)sender
{
    NSPasteboard *pboard = [sender draggingPasteboard];
    NSString *type = [pboard availableTypeFromArray:[NSArray arrayWithObject:NSFilenamesPboardType]];
        if (type) {
            if ([type isEqualToString:NSFilenamesPboardType]) {
                NSArray *filenames = [pboard propertyListForType:NSFilenamesPboardType];
                unsigned i = [filenames count];
                NSFileManager *fm = [NSFileManager defaultManager];
                BOOL isDir;
                if (i == 1) {
                    NSString *filename = [filenames objectAtIndex:0];
                    if ([fm fileExistsAtPath:filename isDirectory:&isDir] && !isDir) 
                        [[self delegate] performSelector:@selector( convertAndOpenFile:) withObject:[filename retain] afterDelay:0.10];
                }
            }
        }
}


@end