Implement dragging into annotation table

Medianno/MAAnno.h

@@ -11,6 +11,8 @@
 #import <QTKit/QTKit.h>
 
 @class MATag;
+@class MAMedia;
+@class MADocument;
 
 @interface MAAnno : NSManagedObject {
 @private
@@ -22,6 +24,7 @@
 
 - (QTTime)qtLocation;
 - (NSString *)exportText;
+- (MAAnno *)copyToDocument:(MADocument *)doc withMedia:(MAMedia *)media;
 
 /*
  * Tags are never manipulated through the tag objects, but always through

Medianno/MAAnno.mm

@@ -9,6 +9,7 @@
 #import "MAAnno.h"
 #import "MATag.h"
 #import "MATagDescription.h"
+#import "MADocument.h"
 
 #import <vector>
 
@@ -114,7 +115,6 @@
     return [NSSet setWithObject:@"tags"];
 }
 
-
 - (NSString *)exportText
 {
     NSMutableString * text = [NSMutableString stringWithFormat:@"%@\t%@", self.location, self.notes];
@@ -123,4 +123,15 @@
     return text;
 }
 
+- (MAAnno *)copyToDocument:(MADocument *)doc withMedia:(MAMedia *)media;
+{
+    MAAnno * anno               = [doc addAnnotationForMedia:media location:QTTimeFromString(self.location)];
+    anno.notes                  = self.notes;
+    NSMutableArray * tagDescs   = [NSMutableArray array];
+    for (MATagDescription * tag in self.tagDescriptions)
+        [tagDescs addObject:[tag copyToDocument:doc withMedia:media]];
+    anno.tagDescriptions        = tagDescs;
+    
+    return anno;
+}
 @end

Medianno/MADocWindow.h

@@ -10,15 +10,17 @@
 #import <QTKit/QTKit.h>
 
 @class MAMovieWindow;
+@class MAMedia;
 
-@interface MADocWindow : NSWindowController <NSWindowDelegate,NSTokenFieldCellDelegate,NSTableViewDelegate> {
+@interface MADocWindow : NSWindowController 
+        <NSWindowDelegate,NSTokenFieldCellDelegate,NSTableViewDelegate,NSTableViewDataSource> 
+{
     IBOutlet NSArrayController*     mediaController;
     IBOutlet NSArrayController*     annotationController;
     IBOutlet QTMovieView *          movieView;
     IBOutlet NSTableView *          mediaTable;
     IBOutlet NSTableView *          annotationTable;
     IBOutlet NSView *               textExportAccessoryView;
-    IBOutlet MAMovieWindow *        moviePanel;
     QTMovie *                       currentMovie;
     NSString *                      currentMovieTitle;
     QTTime                          lastMovieTime;
@@ -39,6 +41,7 @@
 - (QTTime)currentMovieTime;
 - (void)moviePanelDidAppear;
 - (void)moviePanelDidClose;
+- (MAMedia *)currentMedia;
 
 @end
 

Medianno/MADocWindow.mm

@@ -93,8 +93,7 @@ static const char * kMADocWindowObserver = "MADocWindowObserver";
             //
             // Current movie changed
             //
-            if ([[mediaController selectionIndexes] count] > 0) {
-                MAMedia * currentMedia = [[mediaController selectedObjects] objectAtIndex:0];
+            if (MAMedia * currentMedia = [self currentMedia]) {
                 currentMovie = [[QTMovie alloc] initWithFile:[currentMedia media] error:nil];
                 currentMovieTitle = [currentMedia name];
             } else {
@@ -108,6 +107,14 @@ static const char * kMADocWindowObserver = "MADocWindowObserver";
 
 #pragma mark Media management
 
+- (MAMedia *)currentMedia
+{
+    if ([[mediaController selectionIndexes] count] > 0) 
+        return [[mediaController selectedObjects] objectAtIndex:0];
+    else
+        return nil;
+}
+
 - (QTTime)currentMovieTime
 {
     return [currentMovie currentTime];
@@ -369,7 +376,7 @@ static NSTimeInterval sLastSkip = 0.0;
 {
     [currentMovie stop];
     QTTime location = [self currentMovieTime];
-    MAAnno * anno   = [[self document] addAnnotationForMedia:[[mediaController selectedObjects] objectAtIndex:0] location:location];
+    MAAnno * anno   = [[self document] addAnnotationForMedia:[self currentMedia] location:location];
     [annotationController setSelectedObjects:[NSArray arrayWithObject:anno]];
     [annotationTable editColumn:[annotationTable columnWithIdentifier:@"tags"] 
                             row:[annotationController selectionIndex]
@@ -433,8 +440,7 @@ static NSTimeInterval sLastSkip = 0.0;
     NSArray *   lines   = [text componentsSeparatedByString:@"\n"];
     if ([lines count] > 0) {
         MADocument *            doc         = [self document];
-        MAMedia *               media       = 
-        [mediaController selectionIndex] != NSNotFound ? [[mediaController selectedObjects] objectAtIndex:0] : nil;
+        MAMedia *               media       = [self currentMedia];
         //
         // Detect whether we start with a tag
         //

Medianno/MADragging.mm

@@ -11,6 +11,8 @@
 #import "MAAnno.h"
 #import "MAMedia.h"
 
+#include <algorithm>
+
 #define kMADragType @"org.aereperennius.medianno"
 
 @interface MAPasteboardData : NSObject <NSPasteboardWriting> {
@@ -66,6 +68,9 @@
 
 - (void)registerOurDragTypes
 {
+    [mediaTable registerForDraggedTypes:
+     [NSArray arrayWithObjects:kMADragType,NSFilenamesPboardType, nil]];
+    
     [annotationTable setDraggingSourceOperationMask:NSDragOperationEvery forLocal:NO];
     [annotationTable setVerticalMotionCanBeginDrag:NO];
     [annotationTable registerForDraggedTypes:
@@ -81,6 +86,63 @@
     return YES;
 }
 
+- (Class)classOfDraggedObjects:(id)drag
+{
+    NSArray * dragObjects = (NSArray *)[drag longValue]; 
+
+    return [dragObjects count] ? [[dragObjects objectAtIndex:0] class] : nil;
+}
+
+- (NSDragOperation)tableView:(NSTableView *)tableView validateDrop:(id<NSDraggingInfo>)info proposedRow:(NSInteger)row proposedDropOperation:(NSTableViewDropOperation)dropOperation
+{
+    //
+    // We don't allow within-table dragging
+    //
+    if (tableView == [info draggingSource])
+        return NSDragOperationNone;
+    NSPasteboard *  pb = [info draggingPasteboard];
+    if (id drag = [pb propertyListForType:kMADragType]) {
+        //
+        // We don't allow media drops in annotation table
+        //
+        Class dragClass = [self classOfDraggedObjects:drag];
+        if (tableView == annotationTable) {
+            if (dragClass == [MAMedia class] || (dragClass == [MAAnno class] && ![self currentMedia]))
+                return NSDragOperationNone; 
+            [tableView setDropRow:row dropOperation:NSTableViewDropAbove];
+        } else {
+            if (dragClass == [MAMedia class] || dragClass == [MATagDescription class]) {
+                [tableView setDropRow:row dropOperation:NSTableViewDropAbove];
+            } else {
+                row = std::min<NSInteger>(row, [[mediaController arrangedObjects] count]-1);
+                [tableView setDropRow:row dropOperation:NSTableViewDropOn];
+            }
+        }
+        return NSDragOperationCopy;
+    } 
+    return NSDragOperationNone;
+}
+
+- (BOOL)tableView:(NSTableView *)tableView acceptDrop:(id<NSDraggingInfo>)info row:(NSInteger)row dropOperation:(NSTableViewDropOperation)dropOperation
+{
+    NSPasteboard *  pb      = [info draggingPasteboard];
+    MADocument *    doc     = [self document];
+    MAMedia *       media   = nil;
+    
+    if (tableView == annotationTable) {
+        media   =   [self currentMedia];
+    } else if (dropOperation == NSTableViewDropOn) {
+        NSArray * allMedia  = [mediaController arrangedObjects];
+        if (row >= 0 && row < [allMedia count])
+            media           = [allMedia objectAtIndex:row];
+    }
+        
+    if (id drag = [pb propertyListForType:kMADragType])
+        for (id obj in (NSArray *)[drag longValue])
+            [obj copyToDocument:doc withMedia:media];
+    return YES;
+}
+
 @end
 
 @implementation MATagWindow (Dragging)

Medianno/MATagDescription.h

@@ -10,6 +10,8 @@
 #import <CoreData/CoreData.h>
 
 @class MATag;
+@class MADocument;
+@class MAMedia;
 
 @interface MATagDescription : NSManagedObject {
 @private
@@ -19,6 +21,7 @@
 @property (nonatomic, retain) NSSet *uses;
 
 - (NSString *)exportText;
+- (MATagDescription *)copyToDocument:(MADocument *)doc withMedia:(MAMedia *)media;
 
 @end
 

Medianno/MATagDescription.mm

@@ -8,7 +8,7 @@
 
 #import "MATagDescription.h"
 #import "MATag.h"
-
+#import "MADocument.h"
 
 @implementation MATagDescription
 @dynamic name;
@@ -30,4 +30,10 @@
         [tag.annotation didChangeValueForKey:@"tags"];
     [self didChangeValueForKey:@"name"];
 }
+
+- (MATagDescription *)copyToDocument:(MADocument *)doc withMedia:(id)media
+{
+    return [doc tagDescriptionForName:self.name notes:self.notes];
+}
+
 @end