use bindings for media table views

Ample/Base.lproj/MediaView.xib

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="15705" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
     <dependencies>
+        <deployment identifier="macosx"/>
         <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="15705"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
@@ -51,6 +52,9 @@
                                                     <color key="textColor" name="controlTextColor" catalog="System" colorSpace="catalog"/>
                                                     <color key="backgroundColor" name="controlColor" catalog="System" colorSpace="catalog"/>
                                                 </textFieldCell>
+                                                <connections>
+                                                    <binding destination="33q-UT-ur5" name="value" keyPath="objectValue.title" id="JQR-UW-ifh"/>
+                                                </connections>
                                             </textField>
                                         </subviews>
                                         <connections>
@@ -69,6 +73,8 @@
                                                 </pathCell>
                                                 <connections>
                                                     <action selector="pathAction:" target="-2" id="4oX-bW-ANp"/>
+                                                    <binding destination="yGq-lc-RCM" name="enabled" keyPath="objectValue.valid" id="f8P-gt-vmK"/>
+                                                    <binding destination="yGq-lc-RCM" name="value" keyPath="objectValue.url" id="Ony-ph-VVo"/>
                                                 </connections>
                                             </pathControl>
                                             <imageView horizontalHuggingPriority="251" verticalHuggingPriority="251" id="6g1-NT-J1w">
@@ -85,6 +91,11 @@
                                                 </buttonCell>
                                                 <connections>
                                                     <action selector="ejectAction:" target="-2" id="XAl-eQ-nUj"/>
+                                                    <binding destination="yGq-lc-RCM" name="enabled" keyPath="objectValue.url" id="suf-EI-g6t">
+                                                        <dictionary key="options">
+                                                            <string key="NSValueTransformerName">NSIsNotNil</string>
+                                                        </dictionary>
+                                                    </binding>
                                                 </connections>
                                             </button>
                                         </subviews>

Ample/MediaViewController.m

@@ -81,8 +81,6 @@
 
 -(void)prepareView: (NSTableCellView *)view {
 
-    [view setObjectValue: self];
-    [[view textField] setStringValue: _title];
 }
 
 -(CGFloat)height {
@@ -208,39 +206,6 @@
 
 -(void)prepareView: (TablePathView *)view {
     
-    NSValueTransformer *t;
-    NSDictionary *options;
-    
-    [view setObjectValue: self];
-    
-    NSPathControl *pc = [view pathControl];
-    NSButton *button = [view ejectButton];
-
-    [pc unbind: @"value"];
-    [pc unbind: @"enabled"];
-    [pc bind: @"value" toObject: self withKeyPath: @"url" options: nil];
-    [pc bind: @"enabled" toObject: self withKeyPath: @"valid" options: options];
-    
-    [button unbind: @"enabled"];
-    t = [NSValueTransformer valueTransformerForName: NSIsNotNilTransformerName];
-    options = @{ NSValueTransformerBindingOption: t};
-    [button bind: @"enabled" toObject: self withKeyPath: @"url" options: options];
-    
-
-    if (@available(macOS 10.14, *)) {
-        [button unbind: @"contentTintColor"];
-
-        t = [NSValueTransformer valueTransformerForName: @"ValidColorTransformer"];
-        options = @{ NSValueTransformerBindingOption: t};
-        [button bind: @"contentTintColor" toObject: self withKeyPath: @"valid" options: options];
-    } else {
-        // El Capitan TODO...
-    }
-#if 0
-    NSColor *tintColor = nil;
-    if (!_valid) tintColor = [NSColor systemRedColor];
-    [button setContentTintColor: tintColor];
-#endif
 }
 
 -(CGFloat)height {
@@ -436,8 +401,9 @@ static NSString *kDragType = @"private.ample.media";
     NSString *ident = [item viewIdentifier];
     if (!ident) return nil;
     NSTableCellView *v = [outlineView makeViewWithIdentifier: ident owner: self];
-    [(id<MediaNode>)item prepareView: v];
     [v setObjectValue: item];
+
+    [(id<MediaNode>)item prepareView: v];
     return v;
 }
 

Ample/TableCellView.m

@@ -14,6 +14,24 @@
     NSTrackingRectTag _trackingRect;
 }
 
+-(void)awakeFromNib {
+
+    // need to do it here for 10.11 compatibility.
+
+    if (@available(macOS 10.14, *)) {
+        NSValueTransformer *t;
+        NSDictionary *options;
+
+        t = [NSValueTransformer valueTransformerForName: @"ValidColorTransformer"];
+        options = @{ NSValueTransformerBindingOption: t};
+        [_ejectButton bind: @"contentTintColor" toObject: self withKeyPath: @"objectValue.valid" options: options];
+    } else {
+        // El Capitan TODO...
+    }
+    
+}
+
+
 #if 0
 -(void)awakeFromNib {