1/******************************************************************************
2 * $Id: DragOverlayWindow.m 13340 2012-06-10 02:35:58Z livings124 $
3 *
4 * Copyright (c) 2007-2012 Transmission authors and contributors
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *****************************************************************************/
24
25#import "DragOverlayWindow.h"
26#import "DragOverlayView.h"
27#import "NSStringAdditions.h"
28
29@interface DragOverlayWindow (Private)
30
31- (void) resizeWindow;
32
33@end
34
35@implementation DragOverlayWindow
36
37- (id) initWithLib: (tr_session *) lib forWindow: (NSWindow *) window
38{
39    if ((self = ([super initWithContentRect: [window frame] styleMask: NSBorderlessWindowMask
40                    backing: NSBackingStoreBuffered defer: NO])))
41    {
42        fLib = lib;
43        
44        [self setBackgroundColor: [NSColor colorWithCalibratedWhite: 0.0 alpha: 0.5]];
45        [self setAlphaValue: 0.0];
46        [self setOpaque: NO];
47        [self setHasShadow: NO];
48        
49        DragOverlayView * view = [[DragOverlayView alloc] initWithFrame: [self frame]];
50        [self setContentView: view];
51        [view release];
52        
53        [self setReleasedWhenClosed: NO];
54        [self setIgnoresMouseEvents: YES];
55        
56        fFadeInAnimation = [[NSViewAnimation alloc] initWithViewAnimations: [NSArray arrayWithObject:
57                                [NSDictionary dictionaryWithObjectsAndKeys: self, NSViewAnimationTargetKey,
58                                NSViewAnimationFadeInEffect, NSViewAnimationEffectKey, nil]]];
59        [fFadeInAnimation setDuration: 0.15];
60        [fFadeInAnimation setAnimationBlockingMode: NSAnimationNonblockingThreaded];
61        
62        fFadeOutAnimation = [[NSViewAnimation alloc] initWithViewAnimations: [NSArray arrayWithObject:
63                                [NSDictionary dictionaryWithObjectsAndKeys: self, NSViewAnimationTargetKey,
64                                NSViewAnimationFadeOutEffect, NSViewAnimationEffectKey, nil]]];
65        [fFadeOutAnimation setDuration: 0.5];
66        [fFadeOutAnimation setAnimationBlockingMode: NSAnimationNonblockingThreaded];
67        
68        [window addChildWindow: self ordered: NSWindowAbove];
69        
70        [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(resizeWindow)
71            name: NSWindowDidResizeNotification object: window];
72    }
73    return self;
74}
75
76- (void) dealloc
77{
78    [[NSNotificationCenter defaultCenter] removeObserver: self];
79    
80    [fFadeInAnimation release];
81    [fFadeOutAnimation release];
82    
83    [super dealloc];
84}
85
86- (void) setTorrents: (NSArray *) files
87{
88    uint64_t size = 0;
89    NSInteger count = 0;
90    
91    NSString * name;
92    BOOL folder;
93    NSInteger fileCount = 0;
94    
95    for (NSString * file in files)
96    {
97        if ([[[NSWorkspace sharedWorkspace] typeOfFile: file error: NULL] isEqualToString: @"org.bittorrent.torrent"]
98            || [[file pathExtension] caseInsensitiveCompare: @"torrent"] == NSOrderedSame)
99        {
100            tr_ctor * ctor = tr_ctorNew(fLib);
101            tr_ctorSetMetainfoFromFile(ctor, [file UTF8String]);
102            tr_info info;
103            if (tr_torrentParse(ctor, &info) == TR_PARSE_OK)
104            {
105                count++;
106                size += info.totalSize;
107                fileCount += info.fileCount;
108                
109                //only useful when one torrent
110                if (count == 1)
111                {
112                    name = [NSString stringWithUTF8String: info.name];
113                    folder = info.isMultifile;
114                }
115            }
116            tr_metainfoFree(&info);
117            tr_ctorFree(ctor);
118        }
119    }
120    
121    if (count <= 0)
122        return;
123    
124    //set strings and icon
125    NSString * secondString = [NSString stringForFileSize: size];
126    if (count > 1 || folder)
127    {
128        NSString * fileString;
129        if (fileCount == 1)
130            fileString = NSLocalizedString(@"1 file", "Drag overlay -> torrents");
131        else
132            fileString= [NSString stringWithFormat: NSLocalizedString(@"%@ files", "Drag overlay -> torrents"),
133                            [NSString formattedUInteger: fileCount]];
134        secondString = [NSString stringWithFormat: @"%@, %@", fileString, secondString];
135    }
136    
137    NSImage * icon;
138    if (count == 1)
139        icon = [[NSWorkspace sharedWorkspace] iconForFileType: folder ? NSFileTypeForHFSTypeCode(kGenericFolderIcon) : [name pathExtension]];
140    else
141    {
142        name = [NSString stringWithFormat: NSLocalizedString(@"%@ Torrent Files", "Drag overlay -> torrents"),
143                [NSString formattedUInteger: count]];
144        secondString = [secondString stringByAppendingString: @" total"];
145        icon = [NSImage imageNamed: @"TransmissionDocument.icns"];
146    }
147    
148    [[self contentView] setOverlay: icon mainLine: name subLine: secondString];
149    [self fadeIn];
150}
151
152- (void) setFile: (NSString *) file
153{
154    [[self contentView] setOverlay: [NSImage imageNamed: @"CreateLarge"]
155        mainLine: NSLocalizedString(@"Create a Torrent File", "Drag overlay -> file") subLine: file];
156    [self fadeIn];
157}
158
159- (void) setURL: (NSString *) url
160{
161    [[self contentView] setOverlay: [NSImage imageNamed: @"Globe"]
162        mainLine: NSLocalizedString(@"Web Address", "Drag overlay -> url") subLine: url];
163    [self fadeIn];
164}
165
166- (void) fadeIn
167{
168    //stop other animation and set to same progress
169    if ([fFadeOutAnimation isAnimating])
170    {
171        [fFadeOutAnimation stopAnimation];
172        [fFadeInAnimation setCurrentProgress: 1.0 - [fFadeOutAnimation currentProgress]];
173    }
174    [fFadeInAnimation startAnimation];
175}
176
177- (void) fadeOut
178{
179    //stop other animation and set to same progress
180    if ([fFadeInAnimation isAnimating])
181    {
182        [fFadeInAnimation stopAnimation];
183        [fFadeOutAnimation setCurrentProgress: 1.0 - [fFadeInAnimation currentProgress]];
184    }
185    if ([self alphaValue] > 0.0)
186        [fFadeOutAnimation startAnimation];
187}
188
189@end
190
191@implementation DragOverlayWindow (Private)
192
193- (void) resizeWindow
194{
195    [self setFrame: [[self parentWindow] frame] display: NO];
196}
197
198@end
199