Fixes #250. Found workaround to force a refresh by toggleing showHiddenFiles.

MacPass/MPDocumentController.h

@@ -10,6 +10,7 @@
 
 @interface MPDocumentController : NSDocumentController
 
-- (IBAction)toggleAllowAllFilesButton:(id)sender;
+- (IBAction)toggleAllowAllFiles:(id)sender;
+- (IBAction)toggleShowHiddenFiles:(id)sender;
 
 @end

MacPass/MPDocumentController.m

@@ -18,22 +18,15 @@
 @interface MPDocumentController ()
 
 @property (strong) IBOutlet NSView *accessoryView;
+@property (weak) IBOutlet NSButton *allowAllCheckBox;
+@property (weak) IBOutlet NSButton *showHiddenCheckBox;
+
 @property (weak) NSOpenPanel *openPanel;
-@property (strong) id openPanelTableHack;
-@property (assign) BOOL allowAllFiles;
 
 @end
 
 @implementation MPDocumentController
 
-- (instancetype)init {
-  self = [super init];
-  if(self) {
-    _allowAllFiles = NO;
-  }
-  return self;
-}
-
 - (void)beginOpenPanel:(NSOpenPanel *)openPanel forTypes:(NSArray *)inTypes completionHandler:(void (^)(NSInteger))completionHandler {
   self.openPanel = openPanel;
   if(!self.accessoryView) {
@@ -41,15 +34,24 @@
     NSArray *topLevelObjects;
     [myBundle loadNibNamed:@"OpenPanelAccessoryView" owner:self topLevelObjects:&topLevelObjects];
   }
+  self.openPanel.allowedFileTypes = @[MPLegacyDocumentUTI, MPXMLDocumentUTI];
+  self.allowAllCheckBox.state = NSOffState;
+  self.showHiddenCheckBox.state = NSOffState;
   self.openPanel.accessoryView = self.accessoryView;
   [super beginOpenPanel:openPanel forTypes:inTypes completionHandler:completionHandler];
 }
 
-- (IBAction)toggleAllowAllFilesButton:(id)sender {
+- (void)toggleAllowAllFiles:(id)sender {
   NSButton *button = (NSButton *)sender;
-  self.allowAllFiles = HNHBoolForState(button.state);
+  BOOL allowAllFiles = HNHBoolForState(button.state);
-  self.openPanel.allowedFileTypes = self.allowAllFiles ? nil : @[MPLegacyDocumentUTI, MPXMLDocumentUTI];
+  /* Toggle hidden to force a refresh */
-  //[self _refreshOpenPanel];
+  self.openPanel.showsHiddenFiles = !self.openPanel.showsHiddenFiles;
+  self.openPanel.allowedFileTypes = allowAllFiles ? nil : @[MPLegacyDocumentUTI, MPXMLDocumentUTI];
+  self.openPanel.showsHiddenFiles = !self.openPanel.showsHiddenFiles;
+}
+
+- (void)toggleShowHiddenFiles:(id)sender {
+  self.openPanel.showsHiddenFiles = !self.openPanel.showsHiddenFiles;
 }
 
 - (NSString *)typeForContentsOfURL:(NSURL *)url error:(NSError *__autoreleasing *)outError {
@@ -60,35 +62,4 @@
   return [super typeForContentsOfURL:url error:outError];
 }
 
-/*
- Hack is from http://stackoverflow.com/users/1564216/eidola at
- http://stackoverflow.com/questions/18192986/nsopenpanel-doesnt-validatevisiblecolumns
- */
-#pragma mark NSOpenPanel Refresh Hack
-- (id)_openPanelFindTable:(NSArray*)subviews; {
-  id table;
-  for(id view in subviews) {
-    if([[view className] isEqualToString: @"FI_TListView"]) {
-      table = view;
-      break;
-    }
-    else {
-      table = [self _openPanelFindTable:[view subviews]];
-      if (table != nil) {
-        break;
-      }
-    }
-  }
-  return table;
-}
-
-
-- (void)_refreshOpenPanel {
-  if(self.openPanelTableHack == nil) {
-    self.openPanelTableHack = [self _openPanelFindTable:[[self.openPanel contentView] subviews]];
-  }
-  [_openPanelTableHack reloadData];
-  [_openPanel validateVisibleColumns];
-}
-
 @end

MacPass/OpenPanelAccessoryView.xib

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="6250" systemVersion="14A389" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="6250" systemVersion="13F34" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
     <dependencies>
         <deployment identifier="macosx"/>
         <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="6250"/>
@@ -8,33 +8,48 @@
         <customObject id="-2" userLabel="File's Owner" customClass="MPDocumentController">
             <connections>
                 <outlet property="accessoryView" destination="c22-O7-iKe" id="WVB-Jm-Rfh"/>
+                <outlet property="allowAllCheckBox" destination="I5Q-M2-Ha7" id="CDu-nk-a09"/>
+                <outlet property="allowAllFilesCheckButton" destination="I5Q-M2-Ha7" id="bjK-5w-s5K"/>
+                <outlet property="showHiddenCheckBox" destination="x9q-qY-Jy2" id="4Ez-TO-E5B"/>
             </connections>
         </customObject>
         <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
         <customObject id="-3" userLabel="Application" customClass="NSObject"/>
         <customView id="c22-O7-iKe">
-            <rect key="frame" x="0.0" y="0.0" width="398" height="54"/>
+            <rect key="frame" x="0.0" y="0.0" width="243" height="54"/>
             <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
             <subviews>
+                <button translatesAutoresizingMaskIntoConstraints="NO" id="x9q-qY-Jy2">
+                    <rect key="frame" x="69" y="8" width="133" height="18"/>
+                    <buttonCell key="cell" type="check" title="Show hidden files" bezelStyle="regularSquare" imagePosition="left" state="on" inset="2" id="FfY-KA-8IC">
+                        <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
+                        <font key="font" metaFont="system"/>
+                    </buttonCell>
+                    <connections>
+                        <action selector="toggleShowHiddenFiles:" target="-2" id="YW3-e3-aeV"/>
+                    </connections>
+                </button>
                 <button translatesAutoresizingMaskIntoConstraints="NO" id="I5Q-M2-Ha7">
-                    <rect key="frame" x="149" y="18" width="102" height="18"/>
+                    <rect key="frame" x="69" y="28" width="105" height="18"/>
                     <buttonCell key="cell" type="check" title="Allow all files" bezelStyle="regularSquare" imagePosition="left" inset="2" id="tvV-1s-Be3">
                         <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
                         <font key="font" metaFont="system"/>
                     </buttonCell>
                     <connections>
-                        <action selector="toggleAllowAllFilesButton:" target="-2" id="V8B-PV-RQJ"/>
+                        <action selector="toggleAllowAllFiles:" target="-2" id="0Xt-0u-zVS"/>
                     </connections>
                 </button>
             </subviews>
             <constraints>
-                <constraint firstAttribute="bottom" secondItem="I5Q-M2-Ha7" secondAttribute="bottom" constant="20" symbolic="YES" id="1Jj-lS-aRK"/>
+                <constraint firstAttribute="trailing" relation="greaterThanOrEqual" secondItem="I5Q-M2-Ha7" secondAttribute="trailing" constant="20" symbolic="YES" id="0he-6w-YTN"/>
-                <constraint firstItem="I5Q-M2-Ha7" firstAttribute="leading" relation="greaterThanOrEqual" secondItem="c22-O7-iKe" secondAttribute="leading" constant="20" symbolic="YES" id="9S1-Io-6xU"/>
+                <constraint firstItem="I5Q-M2-Ha7" firstAttribute="top" secondItem="c22-O7-iKe" secondAttribute="top" constant="10" id="6h7-ms-2hq"/>
-                <constraint firstItem="I5Q-M2-Ha7" firstAttribute="top" secondItem="c22-O7-iKe" secondAttribute="top" constant="20" symbolic="YES" id="9kk-7T-IXe"/>
+                <constraint firstAttribute="trailing" relation="greaterThanOrEqual" secondItem="x9q-qY-Jy2" secondAttribute="trailing" constant="20" symbolic="YES" id="G8o-qS-cwc"/>
-                <constraint firstAttribute="centerX" secondItem="I5Q-M2-Ha7" secondAttribute="centerX" constant="-0.5" id="Ob5-Dl-HCy"/>
+                <constraint firstItem="x9q-qY-Jy2" firstAttribute="top" secondItem="I5Q-M2-Ha7" secondAttribute="bottom" constant="6" id="Vtk-Vw-Y5u"/>
-                <constraint firstAttribute="trailing" relation="greaterThanOrEqual" secondItem="I5Q-M2-Ha7" secondAttribute="trailing" constant="20" symbolic="YES" id="wmQ-mj-8Pr"/>
+                <constraint firstAttribute="centerX" secondItem="I5Q-M2-Ha7" secondAttribute="centerX" id="evr-ZX-930"/>
+                <constraint firstAttribute="bottom" relation="greaterThanOrEqual" secondItem="x9q-qY-Jy2" secondAttribute="bottom" constant="10" id="f1c-Ha-7hR"/>
+                <constraint firstItem="I5Q-M2-Ha7" firstAttribute="leading" secondItem="x9q-qY-Jy2" secondAttribute="leading" id="sUu-Ol-LM0"/>
             </constraints>
-            <point key="canvasLocation" x="412" y="319"/>
+            <point key="canvasLocation" x="-534.5" y="-117"/>
         </customView>
     </objects>
 </document>