From da01624374ea884fffb15d10a295ded84c6619af Mon Sep 17 00:00:00 2001
From: Sven Weidauer <sven.weidauer@gmail.com>
Date: Wed, 26 Jan 2011 13:35:07 +0000
Subject: Enabling back/forward buttons only if appropriate.

svn path=/trunk/netsurf/; revision=11494
---
 cocoa/BrowserWindowController.m | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

(limited to 'cocoa/BrowserWindowController.m')

diff --git a/cocoa/BrowserWindowController.m b/cocoa/BrowserWindowController.m
index 019807513..21e787b03 100644
--- a/cocoa/BrowserWindowController.m
+++ b/cocoa/BrowserWindowController.m
@@ -30,6 +30,7 @@
 @synthesize tabBar;
 @synthesize tabView;
 @synthesize urlField;
+@synthesize navigationControl;
 
 @synthesize activeBrowser;
 @synthesize activeBrowserController;
@@ -46,6 +47,7 @@
 	[self setTabBar: nil];
 	[self setTabView: nil];
 	[self setUrlField: nil];
+	[self setNavigationControl: nil];
 	
 	[super dealloc];
 }
@@ -64,6 +66,13 @@
 	
 	[urlField setRefreshAction: @selector(reloadPage:)];
 	[urlField bind: @"favicon" toObject: activeBrowserController withKeyPath: @"selection.favicon"  options: nil];
+	
+	[self bind: @"canGoBack" 
+	  toObject: activeBrowserController withKeyPath: @"selection.canGoBack" 
+	   options: nil];
+	[self bind: @"canGoForward" 
+	  toObject: activeBrowserController withKeyPath: @"selection.canGoForward" 
+	   options: nil];
 }
 
 - (void) addTab: (BrowserViewController *)browser;
@@ -110,6 +119,26 @@ extern NSString * const kHomepageURL;
 	[self setNextResponder: activeBrowser];
 }
 
+- (void) setCanGoBack: (BOOL)can;
+{
+	[navigationControl setEnabled: can forSegment: 0];
+}
+
+- (BOOL) canGoBack;
+{
+	return [navigationControl isEnabledForSegment: 0];
+}
+
+- (void) setCanGoForward: (BOOL)can;
+{
+	[navigationControl setEnabled: can forSegment: 1];
+}
+
+- (BOOL) canGoForward;
+{
+	return [navigationControl isEnabledForSegment: 1];
+}
+
 #pragma mark -
 #pragma mark Tab bar delegate
 
-- 
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