Add ability to change toolbar style.

Fixes #86

Application/AppController.h

@@ -102,6 +102,7 @@
 - (void)windowDidExitFullScreen:(NSNotification *)notification;
 
 - (IBAction)toggleMiniMode:(id)sender;
+- (IBAction)toggleToolbarStyle:(id)sender;
 
 @property BOOL miniMode;
 

Application/AppController.m

@@ -22,7 +22,9 @@
 #import <MASShortcut/Shortcut.h>
 #import "Shortcuts.h"
 
-@implementation AppController
+@implementation AppController {
+    BOOL _isFullToolbarStyle;
+}
 
 + (void)initialize
 {
@@ -175,6 +177,8 @@
     // Restore mini mode
     [self setMiniMode:[[NSUserDefaults standardUserDefaults] boolForKey:@"miniMode"]];
 
+    [self setToolbarStyle:[[NSUserDefaults standardUserDefaults] boolForKey:@"toolbarStyleFull"]];
+
     // We need file tree view to restore its state here
     // so attempt to access file tree view controller's root view
     // to force it to read nib and create file tree view for us
@@ -549,4 +553,28 @@
     [windowToShow makeKeyAndOrderFront:self];
 }
 
+- (IBAction)toggleToolbarStyle:(id)sender {
+    [self setToolbarStyle:!_isFullToolbarStyle];
+}
+
+- (void)setToolbarStyle:(BOOL)full {
+    _isFullToolbarStyle = full;
+    [[NSUserDefaults standardUserDefaults] setBool:full forKey:@"toolbarStyleFull"];
+    DLog("Changed toolbar style: %@", (full ? @"full" : @"compact"));
+
+    if (@available(macOS 11.0, *)) {
+        NSWindowToolbarStyle style =
+            full ? NSWindowToolbarStyleExpanded : NSWindowToolbarStyleUnifiedCompact;
+        mainWindow.toolbarStyle = style;
+        miniWindow.toolbarStyle = style;
+    }
+
+    NSWindowTitleVisibility visibility = full ? NSWindowTitleVisible : NSWindowTitleHidden;
+    mainWindow.titleVisibility = visibility;
+    miniWindow.titleVisibility = visibility;
+
+    // Fix empty area after changing toolbar style in mini window as it has no content view
+    [miniWindow setContentSize:NSMakeSize(miniWindow.frame.size.width, 0)];
+}
+
 @end

Base.lproj/MainMenu.xib

@@ -978,6 +978,12 @@
                                     <action selector="toggleVertical:" target="2172" id="2176"/>
                                 </connections>
                             </menuItem>
+                            <menuItem title="Toggle Toolbar Style" id="vBH-Mr-XWi">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="toggleToolbarStyle:" target="226" id="EYr-kR-yZK"/>
+                                </connections>
+                            </menuItem>
                             <menuItem isSeparatorItem="YES" id="2155"/>
                             <menuItem title="Customize Toolbar..." id="1856">
                                 <connections>